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soy milk | Soy milk (simplified Chinese: 豆浆; traditional Chinese: 豆漿), also known as soya milk or soymilk, is a plant-based drink produced by soaking and grinding soybeans, boiling the mixture, and filtering out remaining particulates. It is a stable emulsion of oil, water, and protein. Its original form is an intermediate product of the manufacture of tofu. Originating in China, it became a common beverage in Europe and North America in the latter half of the 20th century, especially as production techniques were developed to give it a taste and consistency more closely resembling that of dairy milk. Soy milk may be used as a substitute for dairy milk by individuals who are vegan or lactose intolerant.
Soy milk is also used in making imitation dairy products such as soy yogurt, soy cream, soy kefir, and soy-based cheese analogues. It is also used as an ingredient for making milkshakes, pancakes, smoothies, bread, mayonnaise, and baked goods.
Names
In some parts of China, the usual term 豆浆 dòujiāng (lit. "bean broth") is used for the traditional watery and beany beverage produced as an intermediate product in the production of tofu, whereas store-bought products designed to imitate the flavor and consistency of dairy milk, may contain a mixture of dairy and soy, are more often known as 豆奶 dòunǎi ("bean milk").In other countries, there are sometimes legal impediments to the equivalents of the name "soy milk". In such jurisdictions, the manufacturers of plant milks typically label their products the equivalent of "soy beverage" or "soy drink".
Naming in the EU
In the European Union, "milk" by law refers exclusively to "the normal mammary secretion obtained from one or more milkings without either addition thereto or extraction therefrom". Only cow's milk is allowed to be named "milk" on packaging, and any other milks must state the name of the respective animal: for example, "goat milk" or "sheep milk". There are exceptions for traditional products such as coconut milk. The naming of soy drink as soy milk became subject of a 2017 court case before the Court of Justice of the European Union after a German consumer protection group filed an unfair competition complaint about a company describing its soya and tofu products as 'milk' or 'cheese'. The Court of Justice ruled that such designations cannot be legally used for purely plant-based products and that additions indicating the plant origin of the products (soy milk) does not influence that prohibition.
History
The earliest record of soybean milk is on a stone slab of the Eastern Han dynasty unearthed in China, on which is engraved the situation of making soy milk in ancient kitchens.
A tofu broth (doufujiang) c. 1365 was used during the Mongol Yuan. As doujiang, this drink remains a common watery form of soy milk in China, usually prepared from fresh soybeans. The compendium of Materia Medica, which was completed in 1578, also has an evaluation of soymilk. Its use increased during the Qing dynasty, apparently due to the discovery that gently heating doujiang for at least 90 minutes hydrolyzed or helped to break down its undesirable raffinose and stachyose, oligosaccharides, which can cause flatulence and digestive pain among lactose-intolerant adults. By the 18th century, it was common enough that street vendors were hawking it; in the 19th, it was also common to take a cup to tofu shops to get hot, fresh doujiang for breakfast. It was already often paired with youtiao, which was dipped into it. The process was industrialized in early Republican China. By 1929, two Shanghai factories were selling over 1000 bottles a day and another in Beijing was almost as productive itself. Following disruption from the Second World War and the Chinese Civil War, soy milk began to be marketed in soft drink-like fashion in Hong Kong, Singapore, and Japan in the 1950s.Soymilk was mentioned in various European letters from China beginning in the 17th century. "Soy milk" entered the English language (as "soy-bean milk") in an 1897 USDA report. Li Yuying established Caséo-Sojaïne, the first soy milk "dairy", in Colombes, France, in 1910; he received the first British and American patents for soy milk manufacturing in 1912 and 1913. J.A. Chard began production of "Soy Lac" in New York City, United States, in 1917. Harry W. Miller—an American businessman forced to relocate his factory from Shanghai owing to World War II—was similarly compelled by the USDA and the US dairy industry to use the term "Soya Lac" rather than "soy milk". John Harvey Kellogg had been working with what he called "soymilk" at his Battle Creek Sanitarium since 1930, but was similarly compelled to market his acidophilus-enriched beverage as "Soygal" when it began commercial production in 1942.A string of 40 court cases against Rich Products between 1949 and 1974 finally established that non-dairy "milks" and imitation dairy products were "a new and distinct food", rather than inferior and illegal knock-offs. Cornell researchers established the enzyme lipoxygenase as responsible for the "beany" flavor of soy milk made in 1966; the same research established a process for reducing or eliminating the bean flavor from commercial products. With Tetra Pak cartons extending its shelf-life, Hong Kong-based Vitasoy reintroduced soy milk to the US market in 1980 and brought it to 20 other countries within a few years. Alpro similarly began production in Belgium in 1980, quickly becoming Europe's leading producer. New production technology and techniques began to permit soy beverages with an appreciably more milk-like flavor and consistency in the mid-1980s.
Preparation
Soy milk is made from whole soybeans or full-fat soy flour. The dry beans are soaked in water for a minimum of three hours up to overnight depending on the temperature of the water. The rehydrated beans then undergo wet grinding with enough added water to give the desired solids content to the final product which has a protein content of 1–4%, depending on the method of production. The ratio of water to beans on a weight basis is 10:1 for traditional soy milk. The resulting slurry or purée is brought to a boil to improve its taste properties (see "Soy odor" below), by heat inactivating soybean trypsin inhibitor, and to sterilize the product. Heating at or near the boiling point is continued for a period of time, 15–20 minutes, followed by the removal of insoluble residues (soy pulp fiber) by straining/filtration.Processing requires the use of an anti-foaming agent or natural defoamer during the boiling step. Bringing filtered soy milk to a boil avoids the problem of foaming. It is generally opaque, white or off-white in color, and approximately the same consistency as cow's milk. Quality attributes during preparation include germination time for the beans used, acidity, total protein and carbohydrates, phytic acid content, and viscosity. Raw soy milk may be sweetened, flavored, and fortified with micronutrients. Once fully processed, soy milk products are typically sold in plastic bottles or plastic-coated cartons, such as tetrapaks.
Soy odor
Traditional Asian soymilk has a "beany" odor, partly of hexanal, considered disagreeable by most Westerners. This is caused by the lipooxygenase (LOX) in the soy oxidizing the fat in the beans. Rehydrating the beans allows the reaction to proceed with the oxygen gas dissolved in soaking water. To eliminate the odor, one can either disable the LOX enzyme with heat or remove the oxygen dissolved in the water. The former can be achieved by soaking beans in hot water (a "hot grind"), skipping the soak entirely, or blanching the soy in water or steam first. The latter can be achieved by a variety of chemical means, such as adding glucose and glucose oxidase to consume the oxygen. The soybean cultivar also influences the odor and a mutant cultivar lacking LOX completely has been produced.The issue and preference of soy odor also affects products made from soymilk, especially tofu. See Tofu § Flavor.
Commerce
With soybean production increasing worldwide during the early 21st century, and consumer interest in plant milks growing from demand in Asia, Europe, and the United States, soy milk became the second-most consumed plant milk (after almond milk) by 2019. Soy milk sales declined in the United States during 2018–19, mainly due to the rising popularity of almond milk and loss of market share to the successful introduction of oat milk.According to market research in 2019, the worldwide market for soy milk was growing at an annual rate of 6%, and was forecast to reach $11 billion in total commerce by 2025. Growth in consumption was due mainly to expanding the flavors of sweetened soy milks and uses in desserts, whereas unsweetened soy milk was being used particularly in Asia-Pacific countries as an ingredient in snacks and various prepared foods.
Usage
Nutrition
A cup (243 mL) serving of a generic unsweetened commercial nutrient-fortified brand of soy milk provides 80 calories from 4 g of carbohydrates (including 1 g of sugar), 4 g of fat and 7 g of protein. This processed soy milk contains appreciable levels of vitamin A, B vitamins, and vitamin D in a range of 10 to 45% of the Daily Value, with calcium and magnesium also in significant content.It has a glycemic index of 34±4. For protein quality, one study gave soya milk a Digestible Indispensable Amino Acid Score (DIAAS) of 78% for infants, 99% for young children, and 117% for older children, adolescents, and adults, with the limiting amino acid for those groups being leucine, lysine, and valine respectively. A DIAAS of 100% or more is considered to be an excellent/high protein quality source.
Nutritional content of human, cow, soy, almond, and oat milks
Non-human milks are fortified
Taste
Manufactured, sweetened soy milk has an oatmeal-like, nutty flavor. In acidic hot drinks, such as coffee, curdling may occur, requiring some manufacturers to add acidity regulators.
Phytic acid
Soybeans, and soy milk in particular, contain phytic acid, which may act as a chelating agent and inhibit mineral absorption, especially for diets already low in minerals. However, dietary intake of phytic acid may help reduce the risk of developing colon cancer.
Regional
Soy milk is a common beverage in East Asian cuisines.
In Chinese cuisine, "sweet" soy milk is made by adding cane sugar or simple syrup. "Salty" or "savory" soy milk is often combined with chopped pickled mustard greens, dried shrimp, youtiao croutons, chopped spring onions, cilantro, pork floss, and/or shallots, along with vinegar, sesame oil, soy sauce, and/or chili oil. Both are traditional breakfast foods, served hot or cold depending on the season or personal preference. At breakfast, it is often accompanied by starchy carbohydrate-rich foods like mantou (a thick, fluffy kind of roll or bun), youtiao (deep-fried dough sticks), and shaobing (sesame flatbread).
Japanese cuisine uses soy milk to make yuba and as an occasional base for nabemono.
In Korean cuisine, soy milk is used as the broth for making kongguksu, a cold noodle soup eaten mostly in summer.In many countries, soy milk is used in vegan and vegetarian food products and as a replacement for cow's milk in many recipes. Soy milk is also used in making imitation dairy products such as soy yogurt, soy cream, soy kefir and soy-based cheese analogues. It is also used as an ingredient for making milkshakes, pancakes, smoothies, bread, mayonnaise, and baked goods.
Ecological effects
Using soybeans to make milk instead of raising cows is ecologically advantageous. Cows require much more energy to produce milk, since the farmer must feed the animal, which can consume up to 24 kilograms (53 lb) of food in dry matter basis and 90 to 180 litres (24 to 48 US gal) of water a day, producing an average of 40 kilograms (88 lb) of milk a day. Legumes, including the soybean plant, also replenish the nitrogen content of the soil in which they are grown.
The cultivation of soybeans in South America is a cause of deforestation (specifically in the Amazon rainforest) and a range of other large-scale environmental harm. However, the majority of soybean cultivation worldwide, especially in South America where cattle farming is widespread, is intended for livestock fodder rather than soy milk production.
See also
References
Bibliography
Atkinson, Fiona S.; et al. (1 Dec 2008), "International Tables of Glycemic Index and Glycemic Load Values: 2008", Diabetes Care, 31 (12): 2281–3, doi:10.2337/dc08-1239, PMC 2584181, PMID 18835944.
Huang, H.T. (2008), "Early Uses of Soybean in Chinese History", The World of Soy, University of Illinois Press, ISBN 978-0-252-03341-4.
Lawrence, S.E.; et al. (2016), "Preference Mapping of Soymilk with Different U.S. Consumers", Journal of Food Science, 81 (2): S463–76, doi:10.1111/1750-3841.13182, PMID 26677062.
Langworthy, C.F. (7 July 1897), "Soy Beans as Food for Man", USDA Farmers' Bulletin, pp. 20–23.
Lei Ma Li, Bin; Han, Fenxia; Yan, Shurong; Wang, Lianzheng; Sun, Junming (2015), "Evaluation of the Chemical Quality Traits of Soybean Seeds, as Related to Sensory Attributes of Soymilk", Food Chemistry, 173: 694–701, doi:10.1016/j.foodchem.2014.10.096, PMID 25466078.
Shi, X.; et al. (2015), "Flavor Characteristic Analysis of Soymilk Prepared by Different Soybean Cultivars and Establishment of Evaluation Method of Soybean Cultivars Suitable for Soymilk Processing", Food Chemistry, 185: 422–9, doi:10.1016/j.foodchem.2015.04.011, PMID 25952888.
Shurtleff, William and Aoyagi, Akiko. (2004), "Dr John Harvey Kellogg and Battle Creek Foods: Work with Soy", History of Soybeans and Soyfoods, 1100 BC to the 1980s, Lafayette: Soyinfo Center.
Shurtleff, William and Aoyagi, Akiko. (2009), History of Miso, Soybean Jiang (China), Jang (Korea), and Tauco/Taotjo (Indonesia), 200 BC–2009, Lafayette: Soyinfo Center, ISBN 9781928914228.
Shurtleff, William and Aoyagi, Akiko. (2013), History of Soymilk and Other Non-Dairy Milks, 1226 to 2013 (PDF), Lafayette: Soyinfo Center.
Shurtleff, William and Aoyagi, Akiko. (2014), History of Soybeans and Soyfoods in China and Taiwan and in Chinese Cookbooks, Restaurants, and Chinese Work with Soyfoods outside China, 1024 BCE to 2014 (PDF), Lafayette: Soyinfo Center.
External links
Media related to Soy milk at Wikimedia Commons
Soy Milk at the Wikibooks Cookbook subproject |
journal of agricultural, biological and environmental statistics | Journal of Agricultural, Biological and Environmental Statistics (JABES) is a peer-reviewed academic journal published by Springer Science+Business Media. It is a joint publication of the International Biometric Society and the American Statistical Association. The journal publishes four issues a year composed of articles that introduce new statistical methods to solve practical problems in the agricultural sciences, the biological sciences, and the environmental sciences.
Abstracting and indexing
Journal of Agricultural, Biological and Environmental Statistics is abstracted and indexed in the Journal Citation Reports, Mathematical Reviews, Research Papers in Economics, SCImago Journal Rank, Scopus, Science Citation Index, Zentralblatt MATH, among others. According to the Journal Citation Reports, the journal has a 2019 impact factor of 1.650, ranking it 57th out of 93 journals in the category "Biology," 35th out of 59 journals in the category "Mathematical & Computational Biology" and 39th out of 124 journals in the category "Statistics & Probability".
External links
Official website
== References == |
food policy | Food policy is the area of public policy concerning how food is produced, processed, distributed, purchased, or provided. Food policies are designed to influence the operation of the food and agriculture system balanced with ensuring human health needs. This often includes decision-making around production and processing techniques, marketing, availability, utilization, and consumption of food, in the interest of meeting or furthering social objectives. Food policy can be promulgated on any level, from local to global, and by a government agency, business, or organization. Food policymakers engage in activities such as regulation of food-related industries, establishing eligibility standards for food assistance programs for the poor, ensuring safety of the food supply, food labeling, and even the qualifications of a product to be considered organic.
Most food policy is initiated at the domestic level for purposes of ensuring a safe and adequate food supply for the citizenry. In a developing nation, there are three main objectives for food policy: to protect the poor from crises, to develop long-run markets that enhance efficient resource use, and to increase food production that will in turn promote an increase in income.Food policy comprises the mechanisms by which food-related matters are addressed or administered by governments, including international bodies or networks, and by public institutions or private organizations. Agricultural producers often bear the burden of governments' desire to keep food prices sufficiently low for growing urban populations. Low prices for consumers can be a disincentive for farmers to produce more food, often resulting in hunger, poor trade prospects, and an increased need for food imports.In a more developed country such as the United States, food and nutrition policy must be viewed in context with regional and national economic concerns, environmental pressures, maintenance of a social safety net, health, encouragement of private enterprise and innovation, and an agrarian landscape dominated by fewer, larger mechanized farms. Industrialized countries strive to ensure that farmers earn relatively stable incomes despite price and supply fluctuations and adverse weather events. The cost of subsidizing farm incomes is passed along to consumers in the form of higher food prices.
History
History of food policy within the U.S. federal government
The history of food policy in the United States started in the 1880s with policies being carried out by the U.S. Department of Agriculture. In 1883, Harvey W. Wiley, M.D., was appointed chief chemist at USDA. Wiley devoted his career to raising public awareness of problems with adulterated food; developing standards for food processing; and campaigning for the Pure Food and Drug Act, also known as the "Wiley Act". For much of the 1880s, policymakers discussed how to deal with diseased livestock being imported into or exported out of the United States. In 1884, the USDA Bureau of Animal Industry (BAI) was created with the purpose of ensuring that diseased livestock could not be used as food. In 1890, the BAI was charged also with testing meats being exported from the U.S. and ensuring these were disease-free. In 1906, the Pure Food and Drug Act and the Federal Meat Inspection Act (FMIA) were both signed into law. Both prevent production and sale of adulterated or misbranded foods, the Pure Food and Drug Act focusing on general foods, and FMIA focusing on meats.The Bureau of Chemistry, which was charged with enforcing the Pure Food and Drug Act, was reorganized in 1927, becoming the Food, Drug, and Insecticide Administration, and eventually came to be called the Food and Drug Administration (FDA) in 1931. In 1938, the Federal Food, Drug, and Cosmetic Act was passed by Congress, giving the FDA authority to set food safety standards. The FDA was reorganized to be under the direction of the Department of Health and Human Services in 1940. The Agricultural Marketing Act (AMA) was passed in 1946, allowing inspection of exotic and game animals on a pay-by-case basis, and giving the USDA the authority to inspect, certify and identify the class, quality and condition of agricultural products.In 1953, with large-scale reorganization in the USDA, the BAI and Bureau of Dairy were abolished, among other bureaus, and their duties were transferred to the Agricultural Research Service (ARS). The Poultry Products Inspection Act was passed in 1957. This ensured that poultry products shipped in interstate commerce as well as those products being imported into the U.S. were continually inspected for diseases, and that product labels are accurate. In 1958, the Food, Drug and Cosmetic Act of 1938 was amended to include the Food Additive Amendment, addressing concerns over invisible hazards from chemicals added to the foods. Also, the Humane Methods of Slaughter Act was passed in 1958. In 1978, this act was amended to ensure that all meat that was inspected by the FSIS to be used for human consumption was humanely slaughtered.In 1965, reorganization of the ARS' Consumer and Marketing Service brought federal meat and poultry inspection into one program. In 1967, the Wholesome Meat Act amended the FMIA, and in 1968, the Wholesome Poultry Act amended the PPIA, both requiring states to conduct inspection programs at least as stringent as federal inspections. The Egg Products Inspection Act (EPIA), passed in 1970, ensured the continuous inspection of the processing of egg products. In 1995, this task was taken over by FSIS, and the FDA took responsibility for shell egg products. In 1977, following several changes in organization, the Food Safety and Quality Service, renamed the Food Safety and Inspection Service (FSIS) in 1981, was created to perform meat and poultry grading.Following an E. coli outbreak in 1993, inspections began to rely more on scientific tests as opposed to the usual sensory-based inspections. FSIS pushed research of Hazard Analysis and Critical Control Points (HACCP). In 1996, the Pathogen Reduction/HACCP Systems were issued, ensuring that illness-causing pathogens are reduced on raw products. Now, while the industry must ensure they are using safe practices, the government is ultimately responsible for setting safety standards and enforcing those standards through inspections and regulation.While food safety concerns may have motivated some of the earliest food policy initiatives, public policies developed around other forms of consumer protections during the latter half of the 20th century, including food labeling and dietary guidance. The role of poverty in food insecurity as well as agricultural concerns have also contributed to the food policy landscape and debate in the United States in recent decades.
History of food policy outside of the U.S. federal government
The primary international agency with a focus on food policy is the Food and Agriculture Organization (FAO) of the United Nations, established in 1945 with four express purposes: to improve nutrition and living standards in member nations, improve the efficiency of production and distribution of all food and agricultural products, better the conditions of rural populations, and expand the world economy in such a way that it would ensure humanity's freedom from hunger. In 1974, FAO hosted the first World Food Conference in Rome and adopted a "Universal Declaration on the Eradication of Hunger and Malnutrition". In the aftermath, numerous public and private efforts were launched to better understand the agricultural, economic, social, climatological, and geo-political contributors to hunger. Organizations such as the International Food Policy Research Institute were founded to fund research designed to lead to "sustainable solutions for ending hunger and poverty" and annually produces a Global Food Policy Report. Policy-makers seek to better understand how economic principles govern supply and demand and how supply and demand influence food security, first defined in the 1970s as "the ability to meet food needs in a consistent way," though the definition continues to evolve.
Food policies evolve as nations improve their economic condition, moving from an economy based on isolated, self-sufficient rural farming to one based on trade and the development of a wider variety of goods and services offered. Urbanization, population growth, and shifting health concerns affect the way food policy is approached. The following table adapted from Simon Maxwell and Rachel Slater succinctly describes the evolutionary shift in food policies internationally.
Food policies and population health in a global setting
Historically, food policy was generally linked to the health of a population, however food and fiber production can play roles in biofuels, animal feed, planetary health and other major systems and structures. The early literature in under-nutrition involving developing countries was concerned with the effects of food shortage practices on spreading diseases such as marasmus and kwashiorkor. With increases in food production, consumption of energy-dense foods (those high in added sugars, solid fats), and the reduction of physical activity, there has been an increase in the prevalence of obesity in most developed countries, especially in middle income families, and in developing countries. Such issues are receiving greater attention from decision makers, employers, and health economists in part because of the loss of worker productivity, increased absenteeism, decreased ability for young adults to enter the military, and the life-time costs of treating associated conditions such as diabetes and hypertension. Also, these policies aided gains in life expectancy achieved in the last few decades but those are being eroded of late due to obesity and chronic diseases.From the standpoint of policy makers, the diets of lower income families within developing countries need to contain higher quantities of nutrients such as dietary protein, iron, calcium, vitamin A, and vitamin C, in relation to overall energy intake. By contrast, food policies for developed countries should encourage lower consumption of energy-dense foods such as those high in dietary fat and added sugars, while promoting higher intakes of fruits, vegetables, whole grains per dietary fiber for improving health.
Food policy in the United States
In the United States, food policy decisions are made by government entities at the federal, state, territorial, tribal, and local level. The primary arenas of federal involvement in food policy include agriculture, nutrition assistance, food safety, dietary guidance, and labeling. Industry initiatives and the work of advocacy organizations that affect food policy are also addressed in this section. Most food policies are developed incrementally, often in reaction to changed circumstances, political climates, or needs.
Governance
All three branches of the federal government play a role in the formulation of food policy in the United States.
Executive Branch
The Food and Drug Administration (FDA) is the federal agency that is responsible for ensuring the safety of food products, with the exception of meat, poultry, and processed eggs. The various offices within the FDA carry out the agency's unified food program that protects and promotes the public health through the following activities:
Ensuring the safety of foods for humans, including food additives and dietary supplements, by setting science-based standards for preventing foodborne illness and ensuring compliance with these standards
Ensuring the safety of animal feed and the safety and effectiveness of animal drugs, including the safety of drug residues in human food derived from animals
Protecting the food and feed supply from intentional contamination
Ensuring that food labels are truthful and contain reliable information consumers can use to choose healthy diets.The Centers for Disease Control and Prevention (CDC) has a variety of public health programs that support state and local health departments, universities, and community-based organizations to implement healthy food nutrition standards in community settings such as early care and education, schools, park and recreation centers, worksites, and hospitals and to support community access through healthy food retail strategies.
The United States Department of Agriculture (USDA) has a broad range of interests involved in food policy.
The Food Safety and Inspection Service (FSIS) is responsible for making sure that the United States' commercial supply of meat, poultry, and egg products is safe, wholesome, and correctly labeled and packaged.The Food and Nutrition Service (FNS) focuses on helping children and needy families get proper nutrition through food assistance programs and nutrition education. Two widely known programs within FNS are the Supplemental Nutrition Assistance Program (SNAP) and the National School Lunch Program (NSLP).The Center for Nutrition Policy and Promotion (CNPP) works to improve the health and well-being of Americans by developing and promoting dietary guidance that links scientific research to the nutrition needs of consumers. The widely accepted food pyramid was used as part of this dietary guidance, but more recently MyPlate has been developed to show proper nutrition practices in reference to a place setting. The food groups of fruits, vegetables, grains, protein foods, and dairy are each allotted a certain amount of space on the plate, showing the public the proportional amounts of each food they should be eating during each meal.The National Organic Program (NOP) regulates the standards for any farm that wants to sell an agricultural product as being organically produced. In order for the agricultural product to be labeled organic, synthetic fertilizers, sewage sludge, irradiation, and genetic engineering may not be used. Additionally, any animal product that is labeled organic must follow guidelines that the livestock living conditions, health care practice and feed follow organic specifications.
USDA has also taken significant steps to reduce food waste in the U.S. Food waste is approximated to be 30 to 40 percent of the food supply and translates to about 133 billion pounds and $161 billion worth of food as reported by USDA's Economic Research Service. The USDA, EPA, and FDA signed a formal agreement in 2018 to work together to educate consumers, engage partner and stakeholders, and design and monitor solutions to reduce food loss and waste.
Legislative Branch
With authority over the nation's annual budget, Congress also plays a role in the formulation of food policies, particularly around issues related to farming and nutrition assistance. In the House of Representatives, the Committee on Agriculture is the lead player; in the Senate, it is the Committee on Agriculture, Nutrition and Forestry. The budget and appropriations committees of each house also play a role. When a program or policy is subject to mandatory spending requirements, meaning that congressional budget committees must fully fund the program for all who meet eligibility criteria, it is the authorizing agriculture committees in both houses that have the power to define the scope of eligibility for the programs. Programs that are not considered mandatory are considered discretionary spending programs, and power over the bottom line is in the hands of the appropriations committees of each house charged with setting annual spending levels.
Judicial Branch
The U.S. Supreme Court has been involved in numerous decisions that have affected food policy around trade and patent concerns, food safety, and labeling. A more systematic and aggressive use of the court system to challenge practices that are linked to obesity has been proposed. Examples include initiating lawsuits against real estate developers who do not include recreational facilities in their designs, school boards that allow exclusive vending rights to soft drink companies, and manufacturers of non-nutritious foods.
Elements of federal food policy
The farm bill
The latest farm bill was signed into law on December 20, 2018 and will expire in 2023. A large amount of U.S. spending occurs to support food security, support food, fiber, and energy production, and an ample human food supply chain through twelve titles including nutrition assistance and farm subsidy programs. The farm bill that is authorized and appropriated approximately every five years. The farm bill authorizes activities through two spending approaches, mandatory and discretionary. Mandatory spending programs operate as entitlements and are paid for using multiple year budget estimates when the bill is enacted, whereas programs with discretionary designation require additional action by congress to receive funding.
Briefly the farm bill titles include:
Title I, Commodity Programs: Provides support for major commodity crops, including corn, soybeans, wheat, peanuts, rice, dairy, and sugar, as well as disaster assistance.
Title II, Conservation: Encourages environmental stewardship of farmlands and improved management through land retirement and/or working lands programs.
Title III, Trade: Supports U.S. agricultural export programs and international food assistance programs.
Title IV, Nutrition: Provides nutrition assistance for low-income individuals and households through programs such as the Supplemental Nutrition Assistance Program (SNAP).
Title V, Credit: Offers direct government loans to farmers/ranchers and guarantees on private lenders’ loans.
Title VI, Rural Development: Supports rural business and community development.
Title VII, Research, Extension, and Related Matters: Supports agricultural research and extension programs.
Title VIII, Forestry: Supports forestry management programs by USDA’s Forest Service.
Title IX, Energy: Encourages the development of farm and community renewable energy systems through various programs.
Title X, Horticulture: Supports the production of specialty crops (fruits, vegetables), USDA-certified organic foods, and locally produced foods and authorizes establishing a regulatory framework for industrial hemp.
Title XI, Crop Insurance: Management of federal crop insurance program.
Title XII, Miscellaneous: Covers other programs and assistance, including support for new ranchers and farmers.
Agricultural concerns
Government interventions in the agricultural economy influence the quantities produced and price of food. A number of different instruments are used to incentivize farmers to grow crops and buffer them through difficult economic or weather cycles, including price supports, supply controls, deficiency payments, direct payments, insurance, and demand expansion. The United States farm bill specifies the type of policy instruments that will be funded in a given cycle and at what cost. Subsidies to farming interests, determined primarily by the farm, are expected to cost $223 billion over the 10-year period from 2013 to 2022, according to the Congressional Research Service (CRS). Crop insurance is the most expensive of the federal farm subsidies, followed by conservation policies and commodity supports. Representatives and senators from states that receive the lion's share of farm subsidies often dominate the committees on agriculture in the House and Senate. Agricultural economics plays an increasingly larger role in the understanding of both domestic and global food trade policy decisions.
The primary demand expansion program supported by the federal government through the Department of Agriculture is known as the commodity checkoff program. It is responsible for a series of advertising campaigns with aims to create higher demand for commodity products such as milk, beef, pork, and eggs. Familiar slogans from these campaigns include "Got Milk?"; "Pork. The Other White Meat"; and "The Incredible, Edible Egg". Checkoff programs do not exist for some of the healthier foods grown and produced in the U.S., including poultry, fish, and whole grains, and marketing support for produce is very minimal.In recent decades, policy makers have come under increased pressure to balance the interests of traditional farming in the United States and issues around organic farming, regenerative agriculture, the environmental impact of agriculture, food vs. fuel, and international food security concerns. The USDA has a variety of programs, policies, and activities that impact and relate to sustainable agriculture, natural resources, and community development including food security.
Nutrition assistance
Ensuring adequate food for families and individuals is also a centerpiece of national food policy efforts. In the United States where most state minimum wages have not been updated to provide what some groups deem a "livable wage", food assistance programs help provide food resources to individuals and families through monthly assistance. This primarily takes the form of monthly benefits that are calculated based on family income, adjusted for certain deductible living expenses and household size, and can only be used for the purchase of foods. The program known for decades as "food stamps" was revamped and renamed Supplemental Nutrition Assistance Program (SNAP) in 2008 to acknowledge the change from paper food stamps to electronic benefit transfer or EBT cards. SNAP is a mandatory spending program; the government must designate funds for the program sufficient to cover benefits for all who meet the eligibility requirements. The farm bill also authorizes funding for SNAP and other nutrition assistance programs that form a social safety net, projected to be at $772 billion over the 10-year-period from 2013 to 2022. In 2020, the USDA also created a COVID-19 food assistance program.
Children
The nutritional needs of children is important component of nutrition assistance in the United States. In fiscal year 2017, children younger than age 5 accounted for 13.4 percent of participants and school-age children accounted for 30.0 percent of participants of USDA’s Supplemental Nutrition Assistance Program (SNAP) benefits, a program for low-income Americans. Over the past ten years, children’s share of SNAP has fallen from 49.1 percent in fiscal year 2007 to 43.4 percent in fiscal year 2017.
In addition, the Special Supplemental Nutrition Program for Women, Infants and Children (WIC) is an effort to ensure the healthcare and nutrition needs of pregnant and lactating low-income women and their children under the age of five. In 2017, approximately 14.1 million women and children were eligible to receive benefits from WIC at any time. Of that group, 7.2 million people participated in the program, or a usage rate of 51 percent. Approximately 6.4 million people took part in 2019.
The National School Lunch Act created the National School Lunch Program in 1946 to ensure that low-income children received a fully or partially subsidized meal in the middle of their school day. Revisions to the program were made under President Lyndon B. Johnson with the enactment of the Child Nutrition Act, which integrated the school lunch programming with the Special Milk Program and launched a new national School Breakfast Program. Numerous studies have confirmed a link between school performance and the school breakfast program. More recently, the Healthy, Hunger-Free Kids Act of 2010 was signed into law by President Barack Obama and serves to reauthorize expenditures on food programming for children. Nutrition standards for school breakfasts and lunches were revised for the first time in 15 years through the passage of the act to align them more closely with healthy foods recommended by the Dietary Guidelines for Americans. The federal government had faced increased pressure to improve the nutritional quality of meals served in public schools over the last several decades from a wide range of advocacy groups with a goal of aligning the foods served with the Dietary Guidelines for Americans which are based on scientific research showing the benefits of whole grains, fruits, and vegetables and reductions in added sugars, refined grains, and sodium. Some of the pressure stemmed from federal efforts in the 1980s to broaden the definition of qualifying food groups.
During the COVID-19 pandemic of 2020, the U.S. government through the USDA created temporary emergency standards of eligibility and benefits under the Food and Nutrition Act of 2008. Due to the shuttering of schools or hybrid school delivery models, children who would normally receive free or reduced price meals (breakfast, lunch, and/dinner) under the Richard B. Russell National School Lunch Act at the school cafeteria, were deemed eligible for Pandemic EBT (P-EBT) under the national emergency provision. This allowed parents and caregivers to purchase foods from local markets and stores to ensure food security for their children using the P-EBT option.
Older Americans
Concerns about senior citizens living in poverty in the 1960s led to the establishment of the Elderly Nutrition Program (ENP) in 1972. This federally funded program provides grants to state and area agencies on aging to help finance the cost of congregate and home-delivered meals for older adults living independently in the community. The program is periodically re-authorized under the Older Americans Act and is administered by the U.S. Department of Health and Human Service's Administration on Aging. The primary activity funded under Title III is the preparation and serving of nutritious meals for adults over the age of 60 and their spouses. Title III-A provides funding for tribal organizations to provide similar meal services. The meals are distributed through two mechanisms: (1) delivered to the homes of seniors who are not mobile or have self-care challenges, and (2) served at a group meeting place such as a senior center, church, community hall or public school. Homebound seniors receive one meal per day (several fresh and frozen meals may be included in a single delivery), and communities that offer congregate meals are encouraged to offer a meal at least five times per week. Meals must meet Dietary Reference Intakes and USDA Dietary Guidelines for older adults. In 2011, the budget for Title III programs was $817.8 million and an estimated 2.6 million people were served. Grants are made by the Administration on Aging to state agencies and local area councils on aging that provide a variety of other services to their communities' seniors. The program relies heavily on volunteers; a savings of about 10% per meal is attributed to volunteer labor. Over the last 20 years, more funds were shifted from congregate meal support to home-delivered foods, often referred to as Meals on Wheels. While the aim of ENP is to target low-income elderly in cities as well as rural settings, there is no means test to use these services; drafters of the initial legislation wanted to limit barriers to use of the program by older adults.
Role of obesity in considering nutrition assistance
Nutrition assistance in the U.S. takes place in a unique context given the high prevalence of diet-related diseases such as diabetes, cancer, cardiovascular disease and high adiposity, or obesity, among adults and children. More than 40 percent of American adults aged 20 and older were considered having the disease of obesity in 2017-2018, and 12 percent of children aged 2 to 5 were classified as already having obesity. Studies have found some minor correlations between food insecurity and obesity among women, but findings regarding men and children have been inconsistent. A framework for using this information to inform policies surrounding food benefits has been proposed. The framework suggests that strategies for coping with the social, psychological, geographic, economical stresses of poverty and structural factors are central to the link between poverty and its impacts on healthy lifestyles such as less access to healthy affordable foods in neighborhoods (the term food swamps have been used to describe locations with high amounts of liquor retail, convenience stores and few grocery stores with produce and lean meats), less access to safe places for physical activity, poor access to quality healthcare to screen and counsel for food security and health, and unhealthy weight status.
Role of farmers' markets
A concern about lack of access to fresh produce for many recipients of SNAP benefits has led to an effort to increase the role farmers' markets can play in providing healthy fruits and vegetables to those receiving nutrition assistance. From 2005 to 2010, the number of farmers' markets authorized and equipped to manage SNAP transactions increased from 444 to 1,611. In 2019 there were over 3,500 farmers market locations across the country that accept SNAP benefits. In addition, the Senior Farmers' Market Nutrition Program provides funding for coupons given to needy older adults for use in local markets and roadside produce vendors approved by each state.
Food safety
In broad policy terms, food safety can be described as an attempt to limit contaminants in the food supply. Traditionally, contaminants of greatest concern were pathogens. According to 2011 estimates by the Centers for Disease Control and Prevention (CDC), 48 million people are sickened, 128,000 are hospitalized, and 3,000 die of foodborne diseases during each year. The top five offenders were norovirus, salmonella, Clostridium perfringens, Campylobacter spp., and Staphylococcus aureus.The General Accounting Office has written numerous reports highlighting the dangers inherent in a fragmented approach to U.S. food safety. Federal regulation of food safety is split primarily among agencies in the Department of Health and Human Services and the Department of Agriculture, but some responsibilities are also delegated to the Environmental Protection Agency (EPA), the Department of Commerce, and the Department of Homeland Security. Within the Department of Health and Human Services, the Food and Drug Administration (FDA) is responsible for the safety of most food products with the exception of meat, poultry, and processed eggs. Animal drugs and livestock feed are also part of the FDA safety mandate, while outbreaks of foodborne illnesses are monitored and probed by the CDC. Within the USDA, the Food Safety and Inspection Service is charged with oversight of the safety, wholesomeness, and proper labeling of meat, poultry and processed eggs. Inspectors are required to be onsite at nearly every slaughterhouse in the nation when animals are being readied for human consumption. As a result, the FSIS has a larger annual budget and employs a much larger number of inspectors than the FDA, even though the FDA's mandate is much broader. Other USDA agencies with a role in food safety include the Animal and Plant Health Inspection Service (APHIS), which aims to prevent animal and plant diseases in domestic and imported products, and the Agricultural Marketing Service (AMS), a service whose primary function is to set quality, grades and marketing standards for dairy products, fruits, vegetables and meat.The Food Safety Modernization Act (FSMA) was signed into law in 2011 and gives the FDA new authorities to regulate the way food is grown, harvested, and processed. It was developed in an effort to limit contamination in the food supply. There are seven major rules to implement FSMA that require specific actions that must be taken at different points along the supply chain to prevent contamination in human and animal food.In addition to pathogens, chemical additives to food are of increasing concern to Americans. A critical concept related to chemical additives in food is known as generally recognized as safe or GRAS, a designation of the Food and Drug Administration for food substances that are exempt from safety testing. About 12,000 samples of fruits and vegetables available to U.S. consumers are collected each year and tested for residue from pesticides, and the results are published in an annual Pesticide Data Program (PDP) hosted by the USDA.There are several types of policy instruments that can be used to try to remedy risks to health posed by the farming and processing of foods for consumption. The government can develop process rules that explicitly state which procedures are appropriate for handling particular foods. Performance standards set quality standards against which foods are measured, such as grades for meat or eggs. Food labeling rules, government-funded food safety research, and consumer education are additional tools. The potential for product liability lawsuits against manufacturers with poor safety practices offers another incentive for producers to take appropriate care when handling and processing foods.
Food labeling
FDA-regulated labeling
Food labeling requirements are spelled out in the Federal Food, Drug, and Cosmetic Act (abbreviated FFDCA, FDCA, or FD&C). Nutrition labeling is required for most prepared foods, and is voluntary for raw produce and fish. The most recognizable label is the nutrition facts label found on all prepared foods. This lists the suggested serving size followed by the amount per serving of calories, fat, cholesterol, sodium, carbohydrates, protein, and a list of some micronutrients found in the food. Ingredients are also included on the label, listed from the highest quantity to the lowest quantity.
There are also requirements for allergen labeling. According to the Food Allergen Labeling and Consumer Protection Act of 2004 (Public Law 108-282, Title II), 2% of adults and 5% of infants and children have food allergies, and 90% of these allergies are related to milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans. Labeling must contain a list of these major food allergens which are contained in the product, or which may have come in contact with the food during production.
USDA-regulated labeling
According to the Organic Foods Production Act and the National Organic Program:
A product can be labeled "100% Organic" if it contains only organic ingredients and processing aids.
The label "Organic" is used for products containing at least 95% organic products.
Products made up of at least 70% organic ingredients may be labeled "Made with organic ingredients".
Unregulated terms
Some factual labeling terms are not regulated with specificity but the USDA-FSIS may require producers to submit additional documentation to verify the claim. These terms include:
No drugs or growth hormones used
Free range / cage free
Sustainably harvestedThese terms are often used on labels to improve the product's marketability. The USDA-FSIS cannot approve false or misleading label claims.
Dietary guidance
A healthy diet is important for appropriate growth, development, optimal immune function, and metabolic health. However, many consumers report confusion due to conflicting nutrition information from different sources including scientific agencies, published books, the media, and social media. The Center for Nutrition Policy and Promotion within the U.S. Department of Agriculture and the Department of Health and Human Services are charged with reviewing the scientific literature and forging agreement on a series of food choices and behaviors that are compiled and issued every five years as the Dietary Guidelines for Americans. The 2020-2025 review is underway with the 2015-2020 Dietary Guidelines for Americans having been published in the fall of 2015. The general public is invited to submit comments to the advisory committee, which are published on the website of the Center for Nutrition Policy and Promotion. Comments submitted come from academic institutions, individual physicians, members of the public, and industries with a stake in the guidelines. For example, among those giving oral testimony to the committee that developed the 2010 guidelines were representatives of the sugar, fisheries, dairy, egg, pork, beef, soy foods, and produce industries. Others offering testimony included the Council for Responsible Nutrition, the University of Washington, the American Heart Association, The Cancer Project, the Institute of Food Technologists, and the Vegetarian Union of North America. While open to public input, the development of the dietary guidelines is an example of a food policy promulgated solely within the executive branch of the federal government.
For more than a decade, dietary guidelines were illustrated with a food pyramid, but the 2010 guidelines were accompanied by a new graphic, MyPlate. This graphic attempts to show proper nutrition practices in reference to a place setting. Five food groups - fruits, vegetables, grains, protein foods, and dairy - are drawn in ideal proportions for each meal. Periodic reports from government agencies, surveys, and studies indicate that the U.S. population fails to meet the government's dietary guidelines. Americans eat insufficient quantities of fruits and vegetables and consume too many highly processed foods high in unhealthy solid fats, added sugars, and consume unhealthy amounts of alcohol. As with nutritional assistance, dietary guidelines are formulated in an environment that is increasingly aware of the health risks faced by the nation due to the growing number of individuals with diet-attributable diseases including obesity, Type 2 diabetes, cardiovascular disease, and certain cancers. While the field of nutrition and public health works closely with a social ecological model that places individual behavior determinants and choices in the context of his or her familial, community, societal contexts including marketing, retail access, and larger agricultural policy, the Dietary Guidelines for Americans are directed at individual behaviors around food, nutritional intake and physical activity. They are however translated into nutrition standards for venues serving or offering foods such as workplaces (e.g. food service guidelines), childcare, and schools (see section on children).
Policy proponents (non-U.S. government)
Advocacy and coalitions
Every citizen of the United States could be described as a stakeholder in food policy, but farming and food industry interests are generally the dominant players when advocating for and against legislation and regulation at the federal level; public health advocates and consumer interest groups also play a role. Action by the federal government on food policy is often more important to farmers and food manufacturers or distributors because their income is derived from these economic activities, whereas consumers in the U.S. spend only about 10 percent of their income on food. This generally makes farmers or food industry executives easier to organize around policy issues than the public at large.Non-profit organizations that accept charitable donations and are organized under section 501(c)(3) of the Internal Revenue Service Code are limited in the funds they can spend on lobbying activities under the code, while profit-making businesses and trade associations do not face the same restrictions. As a result, some charitable groups with a stake in U.S. food policy decisions create a separate organization for lobbying purposes and devise a funding mechanism that does not include tax-deductible charitable contributions. Funds spent by industry and other interest groups on lobbying and political campaigns are tracked and made publicly available by OpenSecrets.
Food policy councils
Many food policy councils (FPCs) bring together a variety of stakeholders to identify food and nutrition security concerns, explore solutions, prioritize equitable approaches, and plan the types of policies needed within a jurisdiction to support the nutrition needs of the public along with ways to support local farmers and producers, processors, distributors, grocers/retailers, and other members of the food system. They may work to educate the public and food sector members, shape public policy, and even create new programs. Many states, regions, cities and other organizations have formed their own FPCs. Some of these FPCs are commissioned by the government, while others are collaborative efforts by grassroots organizations. The earliest grassroots food policy councils were the City of Hartford Advisory Commission on Food Policy established in 1991 and the Marin Food Policy Council established in 1998. The Johns Hopkins Center for a Livable Future’ s Food Policy Networks (FPN) project supports the development of FPCs as well as provides them with tools to help capacity and skill building to create effective councils across the United States. The FPN project also has a site with an online directory and map of existing FPCs.
Food industry initiatives
Not all policies involving food in the public marketplace originate within government. The food industry has also set standards for itself from time to time. Often, these voluntary efforts stem from industry concerns that they may face heavier or piecemeal regulations from federal or state regulators to improve the quality of food products or food marketing.
Facts Up Front
Facts Up Front is an initiative by the Grocery Manufacturers Association (GMA) that is designed to simplify nutrition information on products with a front-of-package (FOP) label that highlights the calories, saturated fat, sodium, and sugars in a single serving of an item. Initially called "Nutrition Keys", the industry took this action at a time when federal agencies expressed concerns about the potential for consumer confusion stemming from competing attempts to simplify nutrition information on packaged goods. Congress and the Centers for Disease Control charged the Institute of Medicine with conducting a study with an eye toward recommendations to standardize these labels, and a report was issued in October 2011. The GMA initiative was launched in January 2011, and compliance is voluntary.
Children's Food and Beverage Advertising Initiative
Launched in 2007, this voluntary effort called for food manufacturers to set nutritional criteria for food products they advertise during children's programming. Organized through the Better Business Bureau, the initiative was widely criticized by advocates for federal regulation of advertising to children. A scorecard developed by the Rudd Center for Food Policy and Obesity at Yale University to track changes in the advertising of cereal to children was issued in 2012 and covered changes during the period of 2008 to 2011. Among the findings: total media spending to advertise child-targeting cereals had increased 34 percent, cereal company spending on Spanish-language TV more than doubled in that time period, two cereal companies launched new advertising in video games or advergame websites, and the majority of cereals children see advertised on television consist of one-third or more sugar. Overall nutrition had improved for 13 of 16-targeted brands, and preschoolers' exposure the cereal advertising declined by 6 percent. An updated review was published in 2017 including the context that in 2016, more than 20,300 food, beverage, and restaurant companies spent approximately $13.5 billion in advertising in all media. The report found that the number of food-related TV ads seen by kids declined from 2007 to 2016 by 4% for preschoolers (ages 2–5), 11% for children aged 6–11, and 14% for young teens aged 12–14. However, exposure to food-related TV advertising by children aged 2–14 continued to average 10 to 11 ads per day in 2016, or approximately 4,000 ads for the year.
Food politics
As with other actors in the public policy arena, food policy makers must account for a variety of political, social, environmental and economic agendas that affect a nation's food supply. Food politics, both domestically and internationally, play an important role in agenda setting, rule making, and implementation. Politics come into play on a variety of different fronts as the needs of the populace to have reliable, safe, affordable access to food are balanced against the desire to ensure farmers can earn a viable living.
Criteria table
Conflicts
Food policy has both political and economic factors that contribute to the challenges it faces. Food policy is not completely based on politics, but politics have an impact. Countries that have more political involvement typically have more of an influence on solving issues dealing with hunger and poverty. Countries that have less political involvement may not have as much to do with food policy.
The solution to hunger is complex but can include having ample nutritious food intake per individual. The amount to increase by depends on how much food is needed to carry out day-to-day tasks and to optimize body systems. Some challenges that this solution faces are: having enough money to afford the cost of food, having the food supply, and having a sufficient supply of nutritional foods. Also, having the education on what foods to buy and which are nutritional can be an issue (nutrition literacy). These are all factors that can cause a food policy to fail.
Food policy involves both consumers and producers. If prices are too high for consumers to afford nutritional food products, then it reduces the amount they can purchase. High food prices can cause lower-income households to have a poorer quality diet. Producers rely on food prices for income and therefore cannot make the prices so low that they are not able to survive. There is a fine line between supply and demand, which creates a challenge for food policy.
References
External links
Policy Database - Healthy Food Policy Project
Background Library on the Farm Bill from the Farm Bill Law Enterprise
Food Safety Modernization Act Resources from the Extension Legal Services Initiative
National Agricultural Library page on the Food Safety Modernization Act
Labels Unwrapped - Demystifying U.S. Food Labels
See also
Advertising to children
Agricultural Act of 2014
Agricultural subsidy
Food
Food industry
Food systems
Global health
International Food Policy Research Institute
Let's Move!
Nutrition
Toronto Food Policy Council
2007–08 world food price crisis |
environmental psychology | Environmental psychology is a branch of psychology that explores the relationship between humans and the external world. It examines the way in which the natural environment and our built environments shape us as individuals. Environmental psychology emphasizes how humans change the environment and how the environment changes humans' experiences and behaviors. The field defines the term environment broadly, encompassing natural environments, social settings, built environments, learning environments, and informational environments. According to an article on APA Psychnet, environmental psychology is when a person thinks of a plan, travels to a certain place, and follows through with the plan throughout their behavior.Environmental psychology was not fully recognized as its own field until the late 1960s when scientists began to question the tie between human behavior and our natural and built environments. Since its conception, the field has been committed to the development of a discipline that is both value oriented and problem oriented, prioritizing research aimed at solving complex environmental problems in the pursuit of individual well-being within a larger society. When solving problems involving human-environment interactions, whether global or local, one must have a model of human nature that predicts the environmental conditions under which humans will respond well. This model can help design, manage, protect and/or restore environments that enhance reasonable behavior, predict the likely outcomes when these conditions are not met, and diagnose problem situations. The field develops such a model of human nature while retaining a broad and inherently multidisciplinary focus. It explores such dissimilar issues as common property resource management, wayfinding in complex settings, the effect of environmental stress on human performance, the characteristics of restorative environments, human information processing, and the promotion of durable conservation behavior. Lately, alongside the increased focus on climate change in society and the social sciences and the re-emergence of limits-to-growth concerns, there has been an increased focus on environmental sustainability issues within the field.This multidisciplinary paradigm has not only characterized the dynamic for which environmental psychology is expected to develop, but it has also been the catalyst in attracting other schools of knowledge in its pursuit, aside from research psychologists. Geographers, economists, landscape architects, policy-makers, sociologists, anthropologists, educators, and product developers all have discovered and participated in this field.Although "environmental psychology" is arguably the best-known and most comprehensive description of the field, it is also known as human factors science, cognitive ergonomics, ecological psychology, ecopsychology, environment–behavior studies, and person–environment studies. Closely related fields include architectural psychology, socio-architecture, behavioral geography, environmental sociology, social ecology, and environmental design research.
History
The origins of the field can be traced to the Romantic poets, such as Wordsworth and Coleridge who drew attention to the power of nature and the significance of human interaction with it. Darwin pointed to the role of the environment in shaping evolution. This idea was quickly applied to human interactions with the surroundings. An extreme Victorian acceptance of this were 'environmental determinists' who insisted the physical environment and climate influenced the evolution of racial characteristics. Willy Hellpach is said to be the first to mention "environmental psychology". One of his books, Geopsyche, discusses topics such as how the sun and the moon affect human activity, the impact of extreme environments, and the effects of color and form (Pol, E., 2006, Blueprints for a history of environmental psychology (I): From first birth to American transition. "Medio Ambiente y Comportamiento Humano", 7(2), 95-113). Among the other major scholars at the roots of environmental psychology were Jakob von Uexküll, Kurt Lewin, Egon Brunswik, and later Gerhard Kaminski and Carl Friedrich Graumann.The end of World War II brought about a demand for guidance on the urgent building programme after the destruction of war. To provide government planning requirements many countries set up research centres that studied how people used space. In the U.K. the Building Research Centre studied space use in houses and later noise levels, heating and lighting requirements. The glass maker Pilkingtons set up a daylight research unit, led by Thomas Markus to provide information on the influence of natural lighting in buildings and guidelines on daylight requirements. Peter Manning developed this further at the Pilkington Research Unit at the University of Liverpool in the 1960s. He studied offices, employing one of the first people to obtain a Ph.D in environmental psychology, Brian Wells. Markus went on to set up the Building Performance Research Unit at the University of Strathclyde in 1968 employing the psychologist David Canter who had been supervised by Wells and Manning for his Ph.D with the Pilkington Research Unit. Canter then went on to the University of Surrey to set up Environmental Psychology programme there in 1971 with the Department of Psychology. The head of that department was Terence Lee who had conducted his PhD on the concept of neighbourhood under the supervision of Sir Frederick Bartlett at the University of Cambridge.
In parallel with these developments people in the US had begun to consider the issues in environmental design. One of the first areas was the consideration of psychiatric hospitals. Psychiatrists worked with architects to take account of the experience of patients who were mentally ill. Robert Sommer wrote his book on 'Personal Space' and Edward T Hall commented as an anthropologist on how people related to each other spatially. Amos Rapoport caused considerable interest amongst architects with his book 'House Form and Culture', showing that the form of buildings was not solely functional but had all sorts of cultural influences. This contributed to the emergence in architecture of 'post-modernism' which took the symbolic qualities of architecture very seriously. These early developments in the 1960s and 1970s were often seen as part of 'architectural psychology'. It was when Harold Proshansky and William Ittelson set up the Environmental Psychology program at the City University of New York Graduate Center that the term Environmental Psychology replaces Architectural Psychology as the widely used term for the study of the ways in which people made sense of and interacted with their surroundings. This was institutionalised when Canter established The Journal of Environmental Psychology in 1980 with Kenneth Craik a personality psychologist at the University of California at Berkeley. President Nixon's campaign to deal with depredations of the environment gave impetus to a change of direction in the field from aspects of buildings and making sense of cities to the broader issues of climate change and the impact of people in the global environment.
Environmental psychologist
Environmental psychologists are the ones who study the relationship between human behavior and the environment that surrounds them. These psychologist study any type of environment, even the ones who are "built" such as peoples homes. They study how we as humans behave and interact in the world. As of May of 2020, the annual salary of an environmental psychologist is $82,180. The two sub-disciplines are conservation psychology and ecopsychology. Conservation Psychology is the study of the development of attitudes in the environment. Ecopsychology is close to the same as conservation psychology, but it focuses on the ties of environmental and societal degradation.
Orientations
Problem oriented
Environmental psychology is a direct study of the relationship between an environment and how that environment affects its inhabitants. Specific aspects of this field work by identifying a problem and through the identification of the said problem, discovering a solution. Therefore, it is necessary for environmental psychology to be problem-oriented.
One important aspect of a problem-oriented field is that by identifying problems, solutions arise from the research acquired. The solutions can aid in making society function better as a whole and create a wealth of knowledge about the inner workings of societies. Environmental psychologist Harold Proshansky discusses how the field is also "value-oriented" because of the field's commitment to bettering society through problem identification. Panyang discusses the importance of not only understanding the problem but also the necessity of a solution. Proshansky also points out some of the problems of a problem-oriented approach for environmental psychology. First, the problems being identified must be studied under certain specifications: they must be ongoing and occurring in real life, not in a laboratory. Second, the notions about the problems must derive directly from the source – meaning they must come directly from the specific environment where the problem is occurring. The solutions and understanding of the problems cannot come from an environment that has been constructed and modeled to look like real life. Environmental psychology needs to reflect the actual society, not a society built in a laboratory setting. The difficult task of the environmental psychologist is to study problems as they are occurring in everyday life. It is hard to reject all laboratory research because laboratory experiments are where theories may be tested without damaging the actual environment or can serve as models when testing solutions. Proshansky makes this point as well, discussing the difficulty in the overall problem oriented approach. He states that it is important, however, for the environmental psychologist to utilize all aspects of research and analysis of the findings and to take into account both the general and individualized aspects of the problems.Environmental psychology addresses environmental problems such as density and crowding, noise pollution, sub-standard living, and urban decay. Noise increases environmental stress. Although it has been found that control and predictability are the greatest factors in stressful effects of noise; context, pitch, source and habituation are also important variables [3]. Environmental psychologists have theorized that density and crowding can also have an adverse effect on mood and may cause stress-related illness or behavior. To understand and solve environmental problems, environmental psychologists believe concepts and principles should come directly from the physical settings and problems being looked at. For example, factors that reduce feelings of crowding within buildings include:
Windows – particularly ones that can be opened and ones that provide a view as well as light
High ceilings
Doors to divide spaces (Baum and Davies) and provide access control
Room shape – square rooms feel less crowded than rectangular ones (Dresor)
Using partitions to create smaller, personalized spaces within an open plan office or larger work space.
Providing increases in cognitive control over aspects of the internal environment, such as ventilation, light, privacy, etc.
Conducting a cognitive appraisal of an environment and feelings of crowding in different settings. For example, one might be comfortable with crowding at a concert but not in school corridors.
Creating a defensible space (Calhoun)
Personal space and territory
Proxemics is known as the study of human space. It also studies the effects that population has on human behavior, communication, and social interaction. Having an area of personal territory in a public space, e.g., at the office, is a key feature of many architectural designs. Having such a 'defensible space' can reduce the negative effects of crowding in urban environments. The term, coined by John B. Calhoun in 1947, is the result of multiple environmental experiments conducted on rats. Originally beginning as an experiment to measure how many rats could be accommodated in a given space, it expanded into determining how rats, given the proper food, shelter and bedding would behave under a confined environment.
Under these circumstances, the males became aggressive, some exclusively homosexual. Others became pansexual and hypersexual, seeking every chance to mount any rat they encountered. As a result, mating behaviors were upset with an increase in infant mortalities. With parents failing to provide proper nests, thoughtlessly ditching their young and even attacking them, infant mortality rose as high as 96% in certain sections. Calhoun published the results as "Population Density and Social Pathology" in a 1962 edition of Scientific American.
Creating barriers and customizing the space are ways of creating personal space, e.g., using pictures of one's family in an office setting. This increases cognitive control as one sees oneself as having control over the competitors to the personal space and therefore able to control the level of density and crowding in the space. Personal space can be both good and bad. It is good when it is used as stated above. Creating "personal space" in an office or work setting can make one feel more comfortable about being at work. Personal space can be bad when someone is in your personal space. In the image to the right, one person is mad at the other person because she is invading her personal space by laying on her.
Systems oriented
The systems-oriented approach to experimenting is applied to individuals or people that are a part of communities, groups, and organizations. These communities, groups, and organizations are systems in homeostasis. Homeostasis is known as the "state of steady conditions within a system." This approach particularly examines group interaction, as opposed to an individual's interaction and it emphasizes on factors of social integration. In the laboratory, experiments focus on cause and effect processes within human nature.
Interdisciplinary oriented
Environmental psychology relies on interaction with other disciplines in order to approach problems with multiple perspectives. The first discipline is the category of behavioral sciences, which include: sociology, political science, anthropology, and economics. Environmental psychology also interacts with the interspecializations of the field of psychology, which include: developmental psychology, cognitive science, industrial and organizational psychology, psychobiology, psychoanalysis, and social neuroscience. In addition to the more scientific fields of study, environmental psychology also works with the design field which includes: the studies of architecture, interior design, urban planning, industrial and object design, landscape architecture, and preservation.
Space-over-time orientation
Space over time orientation highlights the importance of the past. Examining problems with the past in mind creates a better understanding of how past forces, such as social, political, and economic forces, may be of relevance to present and future problems. Time and place are also important to consider. It's important to look at time over extended periods. Physical settings change over time; they change with respect to physical properties and they change because individuals using the space change over time. Looking at these spaces over time will help monitor the changes and possibly predict future problems.
Concepts
Nature restoration
Environmental health shows the effects people have on the environment as well as the effects the environment has on people. From early studies showing that patients with a view of nature from their hospital recovered faster than patients with a window view of a brick wall, how, why, and to which extent nature has mental and physical restorative properties has been a central branch of the field. Although the positive effects of nature have been established, the theoretical underpinning of why it is restorative is still discussed. The most cited theory is the Attention Restoration Theory, which claims nature is a “soft fascination” which restores the ability to direct attention. It is said that being in nature can reduce stress. Studies show that it can reduce anger, improve mood, and even lower one's blood pressure. Secondly, Stress reduction theory claims that because humans have evolved in nature, this type of environment is relaxing, and more adjusted to the senses. Newer theoretical work includes the Conditioned Restoration Theory, which suggests a two-step process. The first step involves associating nature with relaxation, and the second step involves retrieving the same relaxation when presented with an associated stimulus.
Place identity
For many years Harold Proshansky and his colleagues at the Graduate School and University Center of the City University of New York, explored the concept of place identity. Place identity has been traditionally defined as a 'sub-structure of the self-identity of the person consisting of broadly conceived cognitions about the physical world in which the individual lives'. These cognitions define the daily experiences of every human being. Through one's attitudes, feelings, ideas, memories, personal values and preferences toward the range and type of physical settings, they can then understand the environment they live in and their overall experience.
As a person interacts with various places and spaces, they are able to evaluate which properties in different environments fulfill his/her various needs. When a place contains components that satisfy a person biologically, socially, psychologically and/or culturally, it creates the environmental past of a person. Through 'good' or 'bad' experiences with a place, a person is then able to reflect and define their personal values, attitudes, feelings and beliefs about the physical world.
Place identity has been described as the individual's incorporation of place into the larger concept of self; a "potpourri of memories, conceptions, interpretations, ideas, and related feelings about specific physical settings, as well as types of settings".
Other theorists have been instrumental in the creation of the idea of place identity. Three humanistic geographers, Tuan (1980), Relph (1976) and Buttimer (1980), share a couple of basic assumptions. As a person lives and creates memories within a place, attachment is built and it is through one's personal connection to a place, that they gain a sense of belonging and purpose, which then gives significance and meaning to their life.
Five central functions of place-identity have been depicted: recognition, meaning, expressive-requirement, mediating change, and anxiety and defense function. Place identity becomes a cognitive "database" against which every physical setting is experienced. The activities of a person often overlap with physical settings, which then create a background for the rest of life's interactions and events. The individual is frequently unaware of the array of feelings, values or memories of a singular place and simply becomes more comfortable or uncomfortable with certain broad kinds of physical settings, or prefers specific spaces to others. In the time since the term "place identity" was introduced, the theory has been the model for identity that has dominated environmental psychology.
Place attachment
According to the book, "Place Attachment", place attachment is a "complex phenomenon that incorporates people-place bonding" Many different perceptions of the bond between people and places have been hypothesized and studied. The most widespread terms include place attachment and sense of place. One consistent thread woven throughout most recent research on place attachment deals with the importance of the amount of time spent at a certain place (the length of association with a place). While both researchers and writers have made the case that time and experience in a place are important for deepening the meanings and emotional ties central to the person-place relationship, little in-depth research has studied these factors and their role in forging this connection.Place attachment is defined as one's emotional or affective ties to a place, and is generally thought to be the result of a long-term connection with a certain environment. This is different from a simple aesthetic response such as saying a certain place is special because it is beautiful. For example, one can have an emotional response to a beautiful (or ugly) landscape or place, but this response may sometimes be shallow and fleeting. This distinction is one that Schroeder labeled "meaning versus preference". According to Schroeder the definition of "meaning" is "the thoughts, feelings, memories and interpretations evoked by a landscape"; whereas "preference" is "the degree of liking for one landscape compared to another". For a deeper and lasting emotional attachment to develop (Or in Schroeder's terms, for it to have meaning) an enduring relationship with a place is usually a critical factor. Chigbu carried out a rural study of place-attachment using a qualitative approach to check its impact on a community, Uturu (in Nigeria), and found that it has a direct relationship to the level of community development.
Environmental consciousness
Leanne Rivlin theorized that one way to examine an individual's environmental consciousness is to recognize how the physical place is significant, and look at the people/place relationship.
Environmental cognition (involved in human cognition) plays a crucial role in environmental perception.
All different areas of the brain engage with environmentally relevant information. Some believe that the orbitofrontal cortex integrates environmentally relevant information from many distributed areas of the brain. Due to its anterior location within the frontal cortex, the orbitofrontal cortex may make judgments about the environment, and refine the organism's "understanding" through error analysis, and other processes specific to the prefrontal cortex. But to be certain, there is no single brain area dedicated to the organism's interactions with its environment. Rather, all brain areas are dedicated to this task. One area (probably the orbitofrontal cortex) may collate the various pieces of the informational puzzle in order to develop a long term strategy of engagement with the ever-changing "environment". Moreover, the orbitofrontal cortex may show the greatest change in blood oxygenation (BOLD level) when an organism thinks of the broad, and amorphous category referred to as "the environment". Research in this area is showing an increase in climate change related emotional experiences that are seen to be inherently adaptive. Engagement with these emotional experiences leads to a greater sense of connection with others and increased capacity to tolerate and reflect on emotions.Because of the recent concern with the environment, environmental consciousness or awareness has come to be related to the growth and development of understanding and consciousness toward the biophysical environment and its problems.
Behavior settings
The earliest noteworthy discoveries in the field of environmental psychology can be dated back to Roger Barker who created the field of ecological psychology. Founding his research station in Oskaloosa, Kansas in 1947, his field observations expanded into the theory that social settings influence behavior. Empirical data gathered in Oskaloosa from 1947 to 1972 helped him develop the concept of the "behavior setting" to help explain the relationship between the individual and the immediate environment. This was further explored in his work with Paul Gump in the book Big School, Small School: High School Size and Student Behavior. One of the first insightful explanations on why groups tend to be less satisfying for their members as they increase in size, their studies illustrated that large schools had a similar number of behavior settings to that of small schools. This resulted in the students' ability to presume many different roles in small schools (e.g. be in the school band and the school football team) but in larger schools, there was a propensity to deliberate over their social choices.
In his book Ecological Psychology (1968), Barker stresses the importance of the town's behavior and environment as the residents' most ordinary instrument of describing their environment. "The hybrid, eco-behavioral character of behavior settings appear to present Midwest's inhabitants with no difficulty; nouns that combine milieu and standing behavior are common, e.g. oyster supper, basketball game, turkey dinner, golden gavel ceremony, cake walk, back surgery, gift exchange, livestock auction, auto repair."Barker argued that his students should implement T-methods (psychologist as 'transducer': i.e. methods in which they studied the man in his 'natural environment') rather than O-methods (psychologist as "operators" i.e. experimental methods). Basically, Barker preferred fieldwork and direct observation rather than controlled experiments. Some of the minute-by-minute observations of Kansan children from morning to night, jotted down by young and maternal graduate students, may be the most intimate and poignant documents in social science. Barker spent his career expanding on what he called ecological psychology, identifying these behavior settings, and publishing accounts such as One Boy's Day (1952) and Midwest and Its Children (1955).
Natural environment research findings
Environmental psychology research has observed various concepts relating to humans' innate connection to natural environments which begins in early childhood. One study shows that fostering children's connectedness to nature will, in turn, create habitual pro-ecological behaviors in time. Exposure to natural environment may lead to a positive psychological well-being and form positive attitudes and behavior towards nature. Connectedness to nature has shown to be a huge contributor to predicting people's general pro-ecological and pro-social behaviors. Connectedness to nature has also been shown to benefit well-being, happiness, and general satisfaction. "Nature-deficit disorder" has recently been coined to explain the lack of connectedness to nature due to a lack of consciousness identification and nature disconnect. Further research is required to make definitive claims about the effects of connectedness to nature.
Applications
Impact on the built environment
Environmental psychologists rejected the laboratory-experimental paradigm because of its simplification and skewed view of the cause-and-effect relationships of human behaviors and experiences. Environmental psychologists examine how one or more parameters produce an effect while other measures are controlled. It is impossible to manipulate real-world settings in a laboratory.Environmental psychology is oriented towards influencing the work of design professionals (architects, engineers, interior designers, urban planners, etc.) and thereby improving the human environment.
On a civic scale, efforts toward improving pedestrian landscapes have paid off, to some extent, from the involvement of figures like Jane Jacobs and Copenhagen's Jan Gehl. One prime figure here is the late writer and researcher William H. Whyte. His still-refreshing and perceptive "City", based on his accumulated observations of skilled Manhattan pedestrians, provides steps and patterns of use in urban plazas.
The role and impact of architecture on human behavior is debated within the architectural profession. Views range from: supposing that people will adapt to new architectures and city forms; believing that architects cannot predict the impact of buildings on humans and therefore should base decisions on other factors; to those who undertake detailed precedent studies of local building types and how they are used by that society.
Environmental psychology has conquered the whole architectural genre which is concerned with retail stores and any other commercial venues that have the power to manipulate the mood and behavior of customers (e.g. stadiums, casinos, malls, and now airports). From Philip Kotler's landmark paper on Atmospherics and Alan Hirsch's "Effects of Ambient Odors on Slot-Machine Usage in a Las Vegas Casino", through the creation and management of the Gruen transfer, retail relies heavily on psychology, original research, focus groups, and direct observation. One of William Whyte's students, Paco Underhill, makes a living as a "shopping anthropologist". Most of this advanced research remains a trade secret and proprietary.
Environmental psychology is consulted thoroughly when discussing future city design. Eco-cities and eco-towns have been studied to determine the societal benefits of creating more sustainable and ecological designs. Eco-cities allow for humans to live in synch with nature and develop sustainable living techniques. The development of eco-cities requires knowledge in the interactions between "environmental, economic, political, and socio-cultural factors based on ecological principles".
Organizations
Project for Public Spaces (PPS) is a nonprofit organization that works to improve public spaces, particularly parks, civic centers, public markets, downtowns, and campuses. The staff of PPS is made up of individuals trained in environmental design, architecture, urban planning, urban geography, urban design, environmental psychology, landscape architecture, arts administration and information management. The organization has collaborated with many major institutions to improve the appearance and functionality of public spaces throughout the United States. In 2005, PPS co-founded The New York City Streets Renaissance, a campaign that worked to develop a new campaign model for transportation reform. This initiative implemented the transformation of excess sidewalk space in the Meatpacking District of Manhattan into public space. Also, by 2008, New York City reclaimed 49 acres (200,000 m2) of traffic lanes and parking spots away from cars and gave it back to the public as bike lanes and public plazas.
The Center for Human Environments at the CUNY Graduate Center is a research organization that examines the relationship between people and their physical settings. CHE has five subgroups that specialize in aiding specific populations: The Children's Environments Research Group, the Health and Society Research Group, the Housing Environments Research Group, the Public Space Research Group, and the Youth Studies Research Group.
The most relevant scientific groups are the International Association of People-Environment Studies (IAPS) and the Environmental Design Research Association (EDRA).
Urban Ecology , The Urban Ecologist, and the International Eco-City Conference were some of the first collectives to establish the idea of eco-cities and townships.
Challenges
The field saw significant research findings and a fair surge of interest in the late 1970s and early 1980s, but has seen challenges of nomenclature, obtaining objective and repeatable results, scope, and the fact that some research rests on underlying assumptions about human perception, which is not fully understood. Being an interdisciplinary field is difficult because it lacks a solid definition and purpose. It is hard for the field to fit into organizational structures. In the words of Guido Francescato, speaking in 2000, environmental psychology encompasses a "somewhat bewildering array of disparate methodologies, conceptual orientations, and interpretations... making it difficult to delineate, with any degree of precision, just what the field is all about and what might it contribute to the construction of society and the unfolding of history."
A grand challenge in the field of environmental psychology today is to understand the impact of human behavior on the climate and climate change. Understanding why some people engage in pro-environment behaviors can help predict the necessary requirements to engage others in making sustainable change.Environmental psychology has not received nearly enough supporters to be considered an interdisciplinary field within psychology. Harold M. Proshanksy was one of the founders of environmental psychology and was quoted as saying "As I look at the field of environmental psychology today, I am concerned about its future. It has not, since its emergence in the early 1960s grown to the point where it can match the fields of social, personality, learning or cognitive psychology. To be sure, it has increased in membership, in the number of journals devoted to it, and even in the amount of professional organizational support it enjoys, but not enough so that one could look at any major university and find it to be a field of specialization in a department of psychology, or, more importantly, in an interdisciplinary center or institute".
University courses
University of Groningen offers a graduate program in environmental psychology focusing on the interactions between people and their environment. The program is taught by the world-leading Environmental Psychology group at the University of Groningen.
University of Victoria offers general and advanced undergraduate courses in environmental psychology, and graduate courses in Psychology and Nature, as well as Environmental Psychology of the Built Environment. The psychology graduate department also offers individualized master's and PhD programs in Environmental Psychology under the supervision of Dr. Robert Gifford.
Antioch University New England Graduate School offers graduate programs involving environmental education through a planning approach. With environmental psychology being such a diverse field with many different approaches, students have a variety of programs to choose from.
Arizona State University offers a master's in Environmental Resources, which takes more of a planning approach to the field.
The Environmental Psychology Ph.D program at the CUNY Graduate Center takes a multidisciplinary approach to examining and changing "the serious problems associated with the urban environment with a view towards affecting public policy" using social science theory and research methods. The GC-CUNY was the first academic institution in the U.S. to grant a Ph.D. in Environmental Psychology. As discussed in detail on the program website, "recent research has addressed the experiences of recently housed homeless people, the privatization of public space, socio-spatial conflicts, children's safety in the public environment, relocation, community based approaches to housing, the design of specialized environments such as museums, zoos, gardens and hospitals, the changing relationships between home, family and work, the environmental experiences of gay men and lesbians, and access to parks and other urban 'green spaces'." See also The Center for Human Environments.
Cornell University's department of Design and Environmental Analysis offers undergraduate and graduate (Master of Science in Human Environment Relations, Master of Arts in Design, and Ph.D in Human Behavior and Design) studies in environmental psychology, interior design, sustainable design studies, human factors and ergonomics, and facility planning and management.
Drexel University offers a Master of Science degree in Design Research. Of two degree paths, the Environmental Design and Health path includes study with community practitioners and researchers in design and related fields, including health, community design, and public policy. Research typically includes data collection and engaged research practices of design thinking and participatory design. This area of investigation has the potential to create innovative health and educational partnerships, economic opportunities and neighborhood initiatives and relates to the strategic mission of the university to be highly engaged in civic sustainability.
Inland Norway University of Applied Sciences offers a Masters in Environmental psychology. The focus is on how people are affected by both physical and virtual environments, as well as how people affect nature. The program offers courses on environmental behaviour, environment and neuroscience, human factors, virtual environments and cognitive design, change management and greening organizations and architecture and aesthetics.
The Ohio State University City & Regional Planning Program, in the School of Architecture, offers a specialization in environmental psychology (urban design/physical planning and behavior) at both the master's and PhD level. Dissertations have examined such topics as environmental aesthetics, spatial cognition, ethnic enclaves, neighborhood decline, neighborhood satisfaction, restorative and livable places, and behavior change.
Prescott College offers a master's program that incorporates a number of the foundations of environmental psychology as well. The sub-fields in which the program provides includes environmental education, environmental studies, ecology, botany, resource policy, and planning.
University of California, Irvine offers a doctoral specialization in Design & Behavior Research within the Department of Planning, Policy, and Design in the School of Social Ecology, and undergraduate coursework in Environmental Psychology offered jointly by the Departments of Psychology and Social Behavior, Planning, Policy, and Design, and the Program in Public Health.
The University of Michigan offers Master of Science and Master of Arts degrees in its new School for Sustainability and Environment (SEAS). The focus is on how people affect and are affected by environments, and includes a pragmatic approach to promoting environmental stewardship behavior, as well as a focus on how "nearby nature" affects people's mental vitality, physical health and well-being. An emerging theme is helping people to remain optimistic while learning to respond well to increasingly difficult biophysical circumstances.
Another strain of environmental psychology developed out of ergonomics in the 1960s. The beginning of this movement can be traced back to David Canter's work and the founding of the "Performance Research Unit" at the University of Strathclyde in Glasgow, Scotland, in 1966, which expanded traditional ergonomics to study broader issues relating to the environment and the extent to which human beings were "situated" within it (cf situated cognition). Canter led the field in the UK for years and was the editor of the Journal of Environmental Psychology for over 20 years, but has recently turned his attention to criminology.
The University of Surrey was the first institution that offered an architectural psychology course in the UK starting in 1973. Since then, there have been over 250 graduates from over 25 countries. The Environmental Psychology Research Group (EPRG) within the University of Surrey, of which students on the M.Sc in Environmental Psychology are automatically members, has been undertaking research for more than thirty years. EPRG's mission is to gain a better understanding of the environmental and psychological effects of space, no matter the size, with help from social sciences, psychology, and methodologies. There are four categories under which the research projects fall: sustainable development, environmental risk, architectural assessment and environmental design, and environmental education and interpretation. Other universities in the UK now offer courses on the subject, which is an expanding field.See the APA's list of additional environmental psychology graduate programs here: http://www.apadivisions.org/division-34/about/resources/graduate-programs.aspx
Other contributors
Other notable researchers and writers in this field include:
Linda Steg, Professor of Environmental Psychology. Lead author of the IPCC special report in 2017 and awarded the Stevin Prize in 2020.
David Canter, Emeritus Professor at The University of Liverpool. Developed the Environmental Psychology Program at the University of Surrey in 1971 and established, with Kenneth Craik The Journal of Environmental Psychology in 1980. Best known for his "Psychology of Place" theory and his development of building evaluations as part of the Building Performance Research Unit at The University of Strathclyde.
Irwin Altman, Distinguished Professor Emeritus, University of Utah
Robert Gifford, Ph.D. Department of Psychology University of Victoria. Current Editor of the Journal of Environmental Psychology and author of Environmental Psychology: Principles and Practice (5th edition, 2014).
James J. Gibson, Best known for coining the word affordance, a description of what the environment offers the animal in terms of action
Roger Hart Professor of Environmental Psychology, Director of the Center for Human Environments and the Children's Environments Research Group, The Graduate Center, City University of New York
Rachel and Stephen Kaplan, Professors of psychology at the University of Michigan, the Kaplans are known for their research on the effect of nature on people's relationships and health, including Attention Restoration Theory and are renowned in the field of environmental psychology
Cindi Katz, Professor of Environmental Psychology, The Graduate Center, City University of New York
Setha Low, Professor of Environmental Psychology and Director of the Public Space Research Group, The Graduate Center, City University of New York
Kevin A. Lynch and his research into the formation of mental maps
Francis T. McAndrew, Cornelia H. Dudley Professor of Psychology at Knox College and author of "Environmental Psychology" (1993).
Bill Mollison, developed the Environmental Psychology Unit at the University of Tasmania, and also Permaculture with David Holmgren
Amos Rapoport, Distinguished Professor Emeritus Department of Architecture
Leanne Rivlin, Professor of Environmental Psychology, The Graduate Center, City University of New York
Susan Saegert, Director of the Environmental Psychology PhD Program and of the Housing Environments Research Group at the City University of New York
Perla Serfaty, Moroccan-born French and Canadian academic, sociologist, psychosociologist, writer; 2018 inductee into the International Association of People-Environment Studies Hall of Fame
Robert Sommer, a pioneer of the field who first studied personal space in the 1950s and is perhaps best known for his 1969 book Personal Space: The Behavioral Basis of Design, but is also the author of numerous other books, including Design Awareness, and hundreds of articles.
Daniel Stokols, Chancellor's Professor, School of Social Ecology, University of California, Irvine; edited Handbook of Environmental Psychology with Irwin Altman; author, Perspectives on Environment and Behavior; co-author, Health, Behavior, and Environmental Stress with Sheldon Cohen, Gary Evans, and David Krantz
Allan Wicker, who expanded behavior setting theories to include other areas of study, including qualitative research, and social psychology.
Gary Winkel, Professor of Environmental Psychology, The Graduate Center, City University of New York
James A. Swan, professor, media producer and writer who authored one of the first popular articles on environmental education, produced symposiums on the Gaia Hypothesis and the significance of place, produced several documentary films on environmental topics and Co-Executive Producer of the Wild Justice TV series on the National Geographic Channel.
David Uzzell, first Professor of Environmental Psychology in UK, University of Surrey. Research on public understandings of climate crisis, behaviour change and environmental practices, environmental labour studies, environmental risk, heritage interpretation.
See also
References
Notes
Bibliography
Allesch, Christian G. (2003). "Person and Environment: Reflections on the roots of environmental psychology". In 22nd Annual Conference of the European Society for the History of the Human Sciences.
Barker, Roger Garlock (1968). "Ecological Psychology: Concepts and Methods for Studying the Environment of Human Behavior". Stanford University Press.
Barrera-Hernández, Laura Fernanda; Sotelo-Castillo, Mirsha Alicia; Echeverría-Castro, Sonia Beatriz; Tapia-Fonllem, César Octavio (2020). "Connectedness to Nature: Its Impact on Sustainable Behaviors and Happiness in Children". Frontiers in Psychology. 0. doi:10.3389/fpsyg.2020.00276. ISSN 1664-1078.
Barrera-Hernández, Laura Fernanda; Sotelo-Castillo, Mirsha Alicia; Echeverría-Castro, Sonia Beatriz; Tapia-Fonllem, César Octavio (2020). "Connectedness to Nature: Its Impact on Sustainable Behaviors and Happiness in Children". Frontiers in Psychology. 0. doi:10.3389/fpsyg.2020.00276. ISSN 1664-1078.
Bell P., Greene T., Fisher, J., & Baum, A. (1996). Environmental Psychology. Ft Worth: Harcourt Brace.
Canter D., (1977) "The Psychology of Place" London: Architectural Press. available as an eBook
Chigbu, U.E. (2013). "Fostering rural sense of place: the missing piece in Uturu, Nigeria", Development In Practice 23 (2): 264-277. doi:10.1080/09614524.2013.772120
De Young, R. (2013). "Environmental Psychology Overview". In Ann H. Huffman & Stephanie Klein [Eds.] Green Organizations: Driving Change with IO Psychology. (Pp. 17-33). NY: Routledge.
"Eco-innovations in Designing Eco-cities and Eco-towns". The Smart City Journal. Retrieved 2021-07-30.
Gifford, R. (2014). Environmental Psychology: Principles and Practice (5th ed.). Colville, WA: Optimal Books.
Gifford, R. (Ed.)(2016). Research Methods for Environmental Psychology. New York: Wiley.
Ittelson, W. H., Proshansky, H., Rivlin, L., & Winkel, G. (1974). An Introduction to Environmental Psychology. New York: Holt, Rinehart and Winston. Translated into German and Japanese.
Proshansky, H. M. (1987). "The field of environmental psychology: securing its future". In Handbook of Environmental Psychology, eds. D. Stokols and I. Altman. New York: John Wiley & Sons.
Proshansky, Harold, Abbe Fabian, and Robert Kaminoff. (1983). "Place Identity: Physical World Socialization of the Self", Journal of Environmental Psychology 3 (1): 57-83.
Rivlin, L. G. (1990). "Paths towards environmental consciousness". pp. 169–185 in Environment and Behavior Studies: Emergence of Intellectual Traditions, eds. I. Altman and K. Christensen. NY: Plenum.
Sörqvist, Patrik (2016). "Grand Challenges in Environmental Psychology". Frontiers in Psychology. 0. doi:10.3389/fpsyg.2016.00583. ISSN 1664-1078.
Stokols, D., and I. Altman, eds. (1987). Handbook of Environmental Psychology. New York: John Wiley & Sons.
"What is environmental psychology? | APS". www.psychology.org.au. Retrieved 2021-07-30.
Whitburn, Julie (2020). "Children's environmental psychology, behaviour and education and wellbeing: The role of connection to nature".
Zube, E.H., and G. T. Moore, eds. (1991). Advances in Environment, Behavior, and Design, Volume 3. New York: Plenum Press.
External links
Learning materials related to Environmental psychology at Wikiversity
Environmental Psychology at Classification of Instructional Programs |
banana production in ecuador | Banana production in Ecuador is important to the national economy. Ecuador is one of the world's top banana producers, ranked 5th with an annual production of 8 million tonnes (6% of world production) as of 2011. The country exports more than 4 million tonnes annually. The crop is mostly grown on private plantations which sell their crop to national and international companies such as Chiquita, Del Monte, Dole, and Noboa. and others.
History
Production of bananas began in Ecuador in 1910. However, the industry did not experience a boom until 1948, when the government of President Galo Plaza began issuing agricultural credits, tariffs, building ports and a highway on the coast, and making efforts towards pest control.At its peak in the mid-1950s, Ecuador was the largest banana producer in the world. In 1954, five companies including Standard Fruit, United Fruit, and Noboa handled 80 percent of Ecuador's banana exports. A decade later, there were 3,000 banana farms in the country, each averaging approximately 158 acres in size. As of 1960, bananas exported from Ecuador accounted for 25 percent of the world's production, out-producing all of the Central American countries.In the late 1950s, a fungal disease called Panama disease caused huge losses to the banana crop. During the 1960s agrarian reform caused fragmentation of land holdings and multinational companies closed down due to labour trouble. Large landholders lost the advantage and as a result very large numbers of smaller non union plantations came to be established under local producers. During this period Central American countries introduced a new variety known as Cavendish bananas, which was a setback to Ecuador as its banana production was affected. However, Dole ensured that Ecuador's export share in the world market did not fall below 15%.In 1974, Ecuador became a member of the Union of Banana Exporting Countries in an attempt to bargain for better prices. The UEB proposal of an export tax did not succeed in Ecuador, however. In 1975 the UEB collapsed after what became known as "bananagate", bribery of the banana trade monopoly consisting of the three US companies (United Fruit, Standard Fruit, and the Del Monte Corporation).
Eventually, the Black sigatoka, a banana disease destroying much of banana production in Central American countries and Colombia, as well as a levy of export tax, and political unrest in Central America, came to Ecuador's advantage. The Standard Fruit Company and Del Monte Fresh Produce Company decided to make Ecuador the primary supplier of bananas in the 1970s. Some 147,909 hectares were dedicated to production, 99 percent of which were in the three provinces of Oro, Guayas, and Los Ríos in the lowlands of the Pacific coast, with a tropical climate and rich soil conditions.During the 1980s and 1990s in Ecuador, the economic policy of foreign trade was modified to comply to the international trade regime. This boosted banana exports, accounting for 21.1 per cent of total exports and 64.7 per cent of all agricultural exports during the decade of the 1990s. In 1998, there were 4,941 banana planters employing a workforce of 98,000. In 1999 Dole established a new loading terminal at Bananapuerto in 1999.In 2003 the Food and Agriculture Organization reported that the country's banana workers received lower wages than banana workers in all other Latin American banana-exporting nations. A study conducted three years earlier stated that the country's banana worker's average monthly wage was US$56.In 2012, Ecuador reported losses of $600 million due to the Black sigatoka fungus, with 40% (85,000 hectares) of the country's banana plantations affected by it.
Production
Production of banana involves direct adoption of natural resources and labour force. Its dependence, as an agricultural industry, to variation in international prices is high. World consumption standards, trade and environmental regulations, sanctions applied by Ecuador's principal buyers, and the opinions of civil society also have a major bearing on its production. Its commercial production is also influenced by the trade policy of the European Union.As of 2000, Ecuador's export of bananas (the second dominant export item after crude oil) was 3,993,968 metric tons which accounted for 28% of the world's production of 14,155,222 metric tons, making up 5 percent of its GDP. Of this export, bananas were primarily destined for the United States, the largest importer (24 percent), followed by the European Union accounting for 17 percent. However, the European Union, is insistent on signing a trade deal which Ecuador has so far refused to sign. This has created fear among the farming community in Ecuador for their livelihoods.Although there are 300 varieties of bananas grown in Ecuador, the widely grown variety is Cavendish, which can be grown at high densities but are susceptible to pest, mould and other diseases, and spraying the plant with chemicals and pesticides is an essential requirement to maintain yield levels.Bananas are harvested almost every week of the year. The plant growth begins after a plant is cut and a new one sprouts from the root of parent plant. It becomes fruit bearing one year later. Harvested bananas are transported to destinations by truck every week.The cultivation process involves removal of weeds, applying insecticides, covering the fruits with plastics to prevent loss due to close contact, also enclosing the bananas with plastic bags filled with insecticide, protecting plant stocks by covering them with strips of plastic coated with insecticide, removal of yellow and dead leaves, and providing support by propping up the plants with wooden stakes. The growth phases are monitored by tying coloured bands to the stalks. Thus, there are three stages of monitoring which are: harvesting fruit-laden stalks, transporting them to the packing plant, cutting the remaining stems after harvest.
Cuisine
The country's cuisine includes a variety of different banana types such as oritos (sweet baby bananas): yellow eating bananas which are short, fat and very sweet. A related fruit, plantains or plátanos (pronounced "PLAH-ta-nohs"), are also grown extensively in Ecuador, and are usually cooked for eating, both when green and at various stages of ripening. In the coastal areas, a popular side dish served is Patacones, or fried plantains. Plantains are eaten in deep fried form or baked or boiled and used in a wide variety of dishes. The green variety is unripe and is known as verde, the Spanish word for green. When they are ripe they turn yellow and then black . Green plantains are commonly cut into thin slices and deep fried. These are known as chifles and are very popular, much like potato chips, used to accompany ceviches and many other dishes; the maqueño type is especially good for chifles. Viche is a soup containing banana, calamari, conch, crab, crawfish, fish, and peanuts.
Environmental and humanitarian concerns
There are several issues related to the adverse environmental impact due to production of bananas. One issue is of waste management, particularly of plastic bags that are tied to the plants and the fruits during the stages of its growth. Of these bags, the blue colour bags are reported to have toxic effect of Chlorpyrifos, which are not controlled and found strewn all over the place. Aerial spraying of insecticides takes place with about 25 such cycles of spraying in a year. This is a major issue as the people both in the banana production process as in the spraying process are exposed to the toxic effects of such spraying. Not only the plantation but also houses, animals and water bodies are affected by the spray. Testing of water samples from affected areas has revealed calixin and also organophosphates. These toxics can lead to toxicant-induced loss of tolerance (TILT). While aerial spraying is one aspect of the problem manual spraying has much greater impact in the field as the task is sublet to contractors whose employees performing the task are not employed by the plantation and they use highly toxic products such as Mocap (Ethoprophos), and they usually work without any protective cover.A framework known as the Corporate Social Responsibility (CSR) programme has been introduced to address the above issues but its effectiveness has been seriously questioned. Hence, an alternative suggestion made by FAO to address the issues of environmental effects is to evolve a "Health, Safety & Environment Programme" for the whole banana industry, based on trade union proposals, building common priorities and strategies with other stakeholders and implementing concerted strategies to make progressive changes to improve the seriously deteriorated situation facing workers.Exposure to toxic pesticides is a threat to all workers including children as young as 8 years of age. According to the Human Rights Watch, Ecuador has 'violated its duty to respect, protect, and promote workers' rights to organize, as required by the International Covenant on Civil and Political Rights, the ILO Convention concerning Freedom of Association and Protection of the Right to Organise, and the ILO Convention concerning the Right to Organise and Collective Bargaining.
In 2013, the U.S. Department of Labor reported that 2.7% of children aged 5 to 14 are working children and that 71% of them continue to be engaged in child labor in the agricultural sector, namely in the production of bananas. In December 2014 and as far as Ecuador is concerned, bananas are mentioned in the List of Goods Produced by Child Labor or Forced Labor.
== References == |
history of environmental pollution | The history of environmental pollution traces human-dominated ecological systems from the earliest civilizations to the present day. This history is characterized by the increased regional success of a particular society, followed by crises that were either resolved, producing sustainability, or not, leading to decline. In early human history, the use of fire and desire for specific foods may have altered the natural composition of plant and animal communities. Between 8,000 and 12,000 years ago, agrarian communities emerged which depended largely on their environment and the creation of a "structure of permanence."The Western industrial revolution of the 18th to 19th centuries tapped into the vast growth potential of the energy in fossil fuels. Coal was used to power ever more efficient engines and later to generate electricity. Modern sanitation systems and advances in medicine protected large populations from disease. In the mid-20th century, a gathering environmental movement pointed out that there were environmental costs associated with the many material benefits that were now being enjoyed. In the late 20th century, environmental problems became global in scale. The 1973 and 1979 energy crises demonstrated the extent to which the global community had become dependent on non-renewable energy resources. By the 1970s, the ecological footprint of humanity exceeded the carrying capacity of earth, therefore the mode of life of humanity became unsustainable. In the 21st century, there is increasing global awareness of the threat posed by global climate change, produced largely by the burning of fossil fuels. Another major threat is biodiversity loss, caused primarily by land use change.
Early civilizations
In early human history, although the energy and other resource demands of nomadic hunter-gatherers were small, the use of fire and desire for specific foods may have altered the natural composition of plant and animal communities. Between 8,000 and 10,000 years ago, agriculture emerged in various regions of the world. Agrarian communities depended largely on their environment and the creation of a "structure of permanence". Societies outgrowing their local food supply or depleting critical resources either moved on or faced collapse.
Archeological evidence suggests that the first civilizations arose in Sumer, in southern Mesopotamia (now Iraq) and Egypt, both dating from around 3000 BCE. By 1000 BCE, civilizations were also established in the Indus Valley, China, Mexico, Peru, and in parts of Europe. Sumer illustrates issues central to the sustainability of human civilization. Sumerian cities practiced intensive, year-round agriculture from c. 5300 BCE. The surplus of storable food created by this economy allowed the population to settle in one place instead of migrating in search of wild foods and grazing land. It also allowed for a much greater population density. The development of agriculture in Mesopotamia required many labourers to build and maintain its irrigation system. This, in turn, led to political hierarchy, bureaucracy, and religious sanction, along with standing armies to protect the emergent civilization. Intensified agriculture allowed for population increase, but also led to deforestation in upstream areas with resultant flooding and over-irrigation, which raised soil salinity. While there was a shift from the cultivation of wheat to the more salt-tolerant barley, yields still diminished. Eventually, decreasing agricultural production and other factors led to the decline of the civilization. From 2100 BC to 1700 BC, it is estimated that the population was reduced by nearly sixty percent. Civilizations similarly thought to have eventually fallen because of poor management of resources include the Mayans, Anasazi and Easter Islanders, among many others. In contrast, stable communities of shifting cultivators and horticulturists existed in New Guinea and South America, and large agrarian communities in China, India and elsewhere have farmed in the same localities for centuries. Some Polynesian cultures have maintained stable communities for between 1,000 and 3,000 years on small islands with minimal resources using rahui and kaitiakitanga to control human pressure on the environment. In Sri Lanka nature reserves established during the reign of king Devanampiyatissa and dating back to 307 BC were devoted to sustainability and harmonious living with nature.
Emergence of industrial societies
Technological advances over several millennia gave humans increasing control over the environment. But it was the Western industrial revolution of the 18th to 19th centuries that tapped into the vast growth potential of the energy in fossil fuels. Coal was used to power ever more efficient engines and later to generate electricity. Modern sanitation systems and advances in medicine protected large populations from disease. Such conditions led to a human population explosion and unprecedented industrial, technological and scientific growth that has continued to this day, marking the commencement of a period of global human influence known as the Anthropocene. From 1650 to 1850, the global population doubled from around 500 million to 1 billion people.Concerns about the environmental and social impacts of industry were expressed by some Enlightenment political economists and through the Romantic movement of the 1800s. The Reverend Thomas Malthus, devised catastrophic and much-criticised theories of "overpopulation", while John Stuart Mill foresaw the desirability of a "stationary state" economy, thus anticipating concerns of the modern discipline of ecological economics. In the late 19th century Eugenius Warming was the first botanist to study physiological relations between plants and their environment, heralding the scientific discipline of ecology.
Early 20th century
By the 20th century, the industrial revolution had led to an exponential increase in the human consumption of resources. The increase in health, wealth and population was perceived as a simple path of progress. However, in the 1930s economists began developing models of non-renewable resource management (see Hotelling's rule) and the sustainability of welfare in an economy that uses non-renewable resources (Hartwick's rule).Ecology had now gained general acceptance as a scientific discipline, and many concepts vital to sustainability were being explored. These included: the interconnectedness of all living systems in a single living planetary system, the biosphere; the importance of natural cycles (of water, nutrients and other chemicals, materials, waste); and the passage of energy through trophic levels of living systems.
Mid 20th century: environmentalism
Following the deprivations of the great depression and World War II the developed world entered a new period of escalating growth, a post-1950s "great acceleration ... a surge in the human enterprise that has emphatically stamped humanity as a global geophysical force." A gathering environmental movement pointed out that there were environmental costs associated with the many material benefits that were now being enjoyed. Innovations in technology (including plastics, synthetic chemicals, nuclear energy) and the increasing use of fossil fuels, were transforming society. Modern industrial agriculture—the "Green Revolution"—was based on the development of synthetic fertilizers, herbicides and pesticides which had devastating consequences for rural wildlife, as documented by American marine biologist, naturalist and environmentalist Rachel Carson in Silent Spring (1962).
In 1956, American geoscientist M. King Hubbert's peak oil theory predicted an inevitable peak of oil production, first in the United States (between 1965 and 1970), then in successive regions of the world—with a global peak expected thereafter. In the 1970s environmentalism's concern with pollution, the population explosion, consumerism and the depletion of finite resources found expression in Small Is Beautiful, by British economist E. F. Schumacher in 1973, and The Limits to Growth published by the global think tank, the Club of Rome, in 1975.
Late 20th century
Environmental problems were now becoming global in scale. The 1973 and 1979 energy crises demonstrated the extent to which the global community had become dependent on a nonrenewable resource; President Carter in his State of the Union Address called on Americans to "Conserve energy. Eliminate waste. Make 1980 indeed a year of energy conservation." While the developed world was considering the problems of unchecked development the developing countries, faced with continued poverty and deprivation, regarded development as essential to raise the living standards of their peoples. In 1980 the International Union for Conservation of Nature had published its influential World Conservation Strategy, followed in 1982 by its World Charter for Nature, which drew attention to the decline of the world's ecosystems.
In 1987 the United Nation's World Commission on Environment and Development (the Brundtland Commission), in its report Our Common Future suggested that development was acceptable, but it must be sustainable development that would meet the needs of the poor while not increasing environmental problems. Humanity's demand on the planet has more than doubled over the past 45 years as a result of population growth and increasing individual consumption. In 1961 almost all countries in the world had more than enough capacity to meet their own demand; by 2005 the situation had changed radically with many countries able to meet their needs only by importing resources from other nations. A move toward sustainable living by increasing public awareness and adoption of recycling, and renewable energies emerged. The development of renewable sources of energy in the 1970s and '80s, primarily in wind turbines and photovoltaics and increased use of hydroelectricity, presented some of the first sustainable alternatives to fossil fuel and nuclear energy generation, the first large-scale solar and wind power plants appearing during the 1980s and '90s. Also at this time many local and state governments in developed countries began to implement small-scale sustainability policies.
21st century: global awareness
Through the work of climate scientists in the IPCC there is increasing global awareness of the threat posed by global climate change, produced largely by the burning of fossil fuels. In March 2009 the Copenhagen Climate Council, an international team of leading climate scientists, issued a strongly worded statement:
"The climate system is already moving beyond the patterns of natural variability within which our society and economy have developed and thrived. These parameters include global mean surface temperature, sea-level rise, ocean and ice sheet dynamics, ocean acidification, and extreme climatic events. There is a significant risk that many of the trends will accelerate, leading to an increasing risk of abrupt or irreversible climatic shifts."Ecological economics now seek to bridge the gap between ecology and traditional neoclassical economics: it provides an inclusive and ethical economic model for society. A plethora of new concepts to help implement and measure sustainability are becoming more widely accepted including the car-free movement, smart growth (more sustainable urban environments), life cycle assessment (the cradle to cradle analysis of resource use and environmental impact over the life cycle of a product or process), ecological footprint analysis, green building, dematerialization (increased recycling of materials), decarbonisation (removing dependence on fossil fuels) and much more.The work of Bina Agarwal and Vandana Shiva amongst many others, has brought some of the cultural wisdom of traditional, sustainable agrarian societies into the academic discourse on sustainability, and also blended that with modern scientific principles. In 2009 the Environmental Protection Agency of the United States determined that greenhouse gases "endanger public health and welfare" of the American people by contributing to climate change and causing more heat waves, droughts and flooding, and threatening food and water supplies. Between the years 2016 and 2018, the United States saw an increase in 5.7% of the annual average fine particulate matter, which aids in quantifying ambient air quality. Rapidly advancing technologies now provide the means to achieve a transition of economies, energy generation, water and waste management, and food production towards sustainable practices using methods of systems ecology and industrial ecology.
See also
History of sustainable transport
Outline of sustainability
Environmental issue
References
External links
The Complex History of Sustainability, a Timeline of Trends, Authors, Projects and Fiction
History and sustainability project led by Paul Warde at the Centre for History and Economics, King's College, Cambridge. |
deforestation in nigeria | Deforestation in Nigeria refers to the extensive and rapid clearing of forests within the borders of Nigeria. This environmental issue has significant impacts on both local and global scales.Deforestation estimates in Nigeria stand at 5 to 6% per year. From 1979 to 1995, regional breakdowns show significant deforestation rates in various parts of Nigeria.Activities such as expanding agriculture, logging, urbanisation, and infrastructure development contribute to deforestation and present various challenges against afforestation efforts. Deforestation in Nigeria has raised concerns regarding its link to poverty and its environmental consequences.
History and context
As of 1500 AD, the Southern part of Nigeria was predominantly covered by forests, with exceptions in major cities like Calabar, Benin, and Ibadan. Between 1960 and 1981, extensive deforestation reduced the forested areas into two large dispersed fragments, and by the beginning of the 1990s, only minimal fragments remained, mainly as parks and forest reserves.Nigeria is recognised for its ecological biodiversity. It is considered one of the richest biodiversity hotspots globally, significantly contributing to the country's economic prosperity.Preceding independence, significant forest reservations were established, representing 27 per cent of the total forest cover and 10 per cent of the land area, approximately 96,518 square kilometres (37,266 sq mi). Two-thirds of these reserves are in the savanna region, while the remaining percentages are in tropical forest zones in the south, freshwater swamps, and mangroves in the coastal region.Nigeria's Forest Reserves consist of 1,160 designated areas covering approximately 107,527.02 square kilometres (41,516.41 sq mi). These reserves constitute around 11% of Nigeria's total landmass, spread across 362 local government areas. Notably, Lewechi forest reserve in Okigwe, Imo state, is the smallest, covering an area of 0.47 square kilometres (0.18 sq mi), whereas Borgu forest reserve in New Bussa, Niger state, is the largest, encompassing an area of 3,786.58 square kilometres (1,462.01 sq mi).Upon Nigeria's independence in 1960, the country inherited eight national parks, 445 forest reserves, twelve strictly nature reserves, and 28 game reserves from colonial administrators. Despite conservation efforts, these areas have experienced high levels of human activities leading to deforestation, encroachment, and degradation. The names of the eight national parks and their area sizes in descending order are Gumpti Park (6,670 square kilometres (2,580 sq mi)), Kainji Lake Park (5,341 square kilometres (2,062 sq mi)), Cross River Park (3,720 square kilometres (1,440 sq mi)), Old Oyo Park (2,512 square kilometres (970 sq mi)), Chad Basin Park (2,258 square kilometres (872 sq mi)), Yankari Park (2,244 square kilometres (866 sq mi)), Kamuku Park (1,127 square kilometres (435 sq mi)), and Okomu Park (1,127 square kilometres (435 sq mi)).The deforestation problem, accelerated by the rapidly increasing population growth, has severely impacted Nigeria's rich biodiversity, including 864 bird species, 285 mammal species, 203 reptile species, 117 amphibian species, 775 fish species, and 4,715 species of higher plants. The population of rare Cross River gorillas has notably decreased due to poaching and habitat destruction. Deforestation has caused economic challenges, affecting agricultural yield and livelihoods.Environmental issues, including deforestation, have led to conflicts and even the execution of environmental activists such as Ken Saro-Wiwa, a Nobel Peace Prize nominee.
Concepts of deforestation
The definition of "deforestation" is crucial to eliminate confusion. Various terms are used to express this concept, including "land use conversions." These conversions encompass agricultural expansion (from woodland to grazing or cropland) and agricultural intensification (converting grazing land to cropland)."Forest decline" refers to situations where air pollution and atmospheric deposition negatively impact tree and forest health. It can be caused by diseases, nutrient deficiency, and climate perturbations."Forest fragmentation" poses a threat to ecosystems by disrupting genetic processes like genetic drift, gene flow, selection, and mating due to reduced population sizes and isolation of forest remnants from non-forest areas.Deforestation refers to tree removal without replanting, leading to reduced forests, habitats, and biodiversity. Scholars view deforestation as the process of converting forests to other land uses, like urban expansion, grazing, or agriculture.Nigeria, naturally rich in forests, has approximately 12.18% forest cover in its total land area. Forests offer various ecosystem services vital for human well-being, ranging from regulatory and cultural to supporting and provisioning functions. Deforestation rates in Nigeria have increased, with substantial forest cover loss attributed to factors such as traditional agricultural practices, overgrazing, and poor land tenure systems.Deforestation leads to desertification, ecosystem and biodiversity loss, land degradation, increased greenhouse gases, and soil erosion, significantly impacting the environment and human well-being Deforestation threatens the sustainability of the environment, which in turn may lead to risks for citizens' quality of life due to economic change.Public education and governmental focus on forest management, technological advancements, and sustainable energy are critical to reduce deforestation rates.
Deforestation overview
Deforestation refers to the removal of vegetation without simultaneous replanting for various economic or social purposes. This process has multifaceted adverse effects on the natural environment, contributing to soil erosion, loss of biodiversity, wildlife reduction, land degradation, and desertification. Furthermore, deforestation significantly impacts agriculture, leading to conflict and affecting overall quality of life. The data spanning 2000 to 2005 identifies Nigeria as having the highest deforestation rate worldwide, losing 55.7% of its primary forests. These primary forests encompass areas with no visible signs of human activities. Notably, deforestation intensifies carbon dioxide circulation, contributing to greenhouse gas emissions.
Nigeria's annual deforestation rate stands at approximately 3.5%, equating to 350,000–400,000 ha (860,000–990,000 acres) per year. The Food and Agriculture Organization outlines criteria for sustainable forest management, such as maintaining forest resources, biodiversity, health, and productive, protective, and socio-economic functions. These benchmarks are presently not met, posing potential detrimental effects if not addressed promptly.The Nigerian Conservation Foundation (NCF) reported a loss of over 96% of Nigeria's natural forest cover in 2018, with a deforestation rate of 11.1% annually, significantly impacting forest biodiversity.Between 1990 and 2005, approximately 11,089,000 hectares (27,400,000 acres), or 12.2% of Nigeria's original forest coverage, was deforested. The annual average deforestation rate during 1990–2000 was 409,700 hectares (1,012,000 acres) (about 2.38%). Nigeria observed a total forest cover loss of approximately 6,145,000 hectares (15,180,000 acres) (35.7%) between 1990 and 2005.The country faces a massive risk of desertification due to extensive deforestation, which compromises once-fertile land. Studies from 1901 to 2005 found a temperature increase of 1.1°C in Nigeria, surpassing the global average of 0.74°C. During the same period, rainfall decreased by 81mm, with significant changes occurring in the 1970s.The alarmingly rapid deforestation is attributed to the demand for fuel wood. Approximately 90% of the Nigerian population depends on kerosene for cooking, but due to its unavailability or high cost, 60% resort to using fuel wood. Rural areas observe higher usage, influencing livelihoods, while poverty remains a significant driver of deforestation.Despite an increase in national parks and reserves, only 3.6% of Nigeria is protected under the International Union for Conservation of Nature categories I-V. Inadequate forest management by the Department of Forestry since the 1970s is a significant contributor to the deteriorating ecosystem. The country lacks decisive measures to combat illegal logging and lower the deforestation rate.Deforestation jeopardises various environmental, economic, and societal facets, potentially leading to forest degradation, characterised by extreme soil erosion, loss of nutrients, and extinction of plant and animal species. Additionally, this environmental issue is further aggravated by climate change, potentially causing an upsurge in diseases, pests, and forest fires.
Causes of deforestation
Understanding the primary factors driving deforestation in Nigeria requires distinguishing between the actors responsible for deforestation and the underlying reasons behind it. These actors, including slash-and-burn farmers, ranchers, loggers, firewood collectors, and infrastructural developers, play a role in forest removal, influenced by the underlying causes of deforestation.The foremost cause, considered an indirect driver of deforestation, is the most significant. While Nigeria's forests make a substantial contribution to the GDP, diligent policies to regulate human activities within forests and preserve this valuable resource are lacking. This disconnect between fiscal policies and the value of forest resources, coupled with inadequate incentives for alternatives, leads to issues like high fossil fuel prices, unemployment, and underfunded forest management initiatives.
Several elements contribute to deforestation in NigeriaExpansion of Farming Land About 60% of tropical forest clearing in Nigeria is for agricultural settlement. Shifting agriculture, involving underbrushing, felling, and slash-and-burn methods, leads to permanent destruction of rainforests, responsible for approximately half of tropical deforestation.
Urbanization, Industrialization, and Infrastructural Development The need for urban expansion and infrastructure development requires clearing forests. Over a century, Nigeria's land area decreased from 60 million hectares to 9.6 million hectares, marking significant forest loss due to infrastructural expansions and industrial setups. These developments often encroach upon forests, impacting local livelihoods without assured benefits or compensation.Deforestation in Nigeria is influenced by various factors, including climate change (albeit a minor fraction), logging, biotic agents, and manual deforestation by individuals and organisations. Primary drivers include agriculture expansion, logging, legal and illegal, and urbanisation. For instance, recent findings highlighted a 99.2-hectare land allocation for an international market in Enugu State, leading to deforestation at Opi in Nsukka Local Government Area (Field Survey, October 2023).
Impact of logging
The impact of logging on deforestation involves cutting down trees, processing them locally, and transporting them via trucks, contributing significantly to global deforestation.When companies engage in commercial logging, it leads to deforestation. Logging industries provide wood varieties like ebony, mahogany, teak, and meranti to the global market, leading to a depletion of forests. Transporting logs involves two methods: water transportation in swampy areas and road transportation where equipment can move smoothly.Various actors engage in wood logging in Nigeria, including the World Trade Organization (WTO), multilateral banks (World Bank, Inter-American Development Bank, Asian Development Bank, African Development Bank), international financial institutions (International Monetary Fund), transnational and national businesses, development agencies, and governments. These actors play various roles but also have detrimental effects on indigenous populations, underdeveloped nations, and the global community.
Global asymmetries in economic development contribute to a divide between industrialised and underdeveloped nations. Multilateral institutions pressure local governments to settle foreign obligations, leading to environmental damage and increased poverty. Development plans emphasise export-oriented exploitation of natural resources, focusing on wood as a profitable business, neglecting other forest dimensions like biodiversity, food, or medicinal plants.National governments support logging operations despite local inhabitants' presence in the forests due to vested interests of the ruling class and transnational corporations. Selective logging has a modest impact compared to incidental damage caused by the machinery used, which significantly alters the forest ecosystem, inhibiting tree regeneration and threatening biodiversity.Deforestation in Nigeria has significant environmental consequences, including soil erosion, declining biodiversity, altered climate, increased carbon emissions, population declines, and increased risks of landslides and flooding. Ecosystems are disrupted, limiting access to clean water.Addressing deforestation by protecting forests and promoting sustainable practices is crucial to mitigate its adverse impacts on the environment and ensure long-term environmental health.
Agriculture
The growing population in Nigeria has intensified the demand for food, leading to annual destruction of large forest areas by bush burning or logging to create farmland. Shifting cultivation, a farming practice where farmers relocate in search of fertile land, accelerates land deterioration and forces exploration of new forest borders, thereby increasing deforestation.
In Nigeria, disputes between local farmers and Fulani herdsmen during the 1960s led to property destruction, displacement, and livelihood disruption. Grazing practices are a significant contributor to deforestation, and addressing these crises requires governance, justice, equity, and adherence to rule of law.
Small ruminant farming
Small ruminant farming involves raising animals like sheep and goats for their meat, milk, and other products. While a sustainable practice for food production, it can contribute to deforestation in various ways.
Grazing land creation and overgrazing by small ruminants significantly damage forests, leading to soil erosion and ecosystem damage.
Animal feed production may require land, water, and other resources, potentially leading to deforestation or resource overexploitation.Reducing the impact of small ruminant farming on deforestation can be achieved through sustainable grazing methods, such as rotating grazing areas and using less destructive methods. Moreover, improving the efficiency of animal feed production using sustainable sources can help mitigate the impact on forests. Raising awareness of the environmental impacts among farmers can encourage the adoption of more sustainable practices.
Petroleum exploration
Petroleum exploration and exploitation in the southern part of Nigeria have had significant impacts on the swamp forest ecosystem and mangrove forests in the Niger Delta region. According to the Department of Petroleum Resources, approximately 419 oil spills have occurred on land, resulting in the loss of an estimated 5 to 10 per cent of the mangrove forest area. The inadequate coordination of pipelines and environmental concerns has left many in the region unemployed, with limited farming opportunities and a diminished forest reserve to rely on.
The expectation that fuel provision would sustain communities has been affected by conflicts arising from oil theft, pitting indigenous groups against the government. These conflicts, coupled with oil spills, have also compromised the quality of drinking water, posing a threat to public health.The oil spills in the Niger Delta region have resulted in deforestation, ecological degradation, and the disruption of ecosystem services and natural resources. This spillage has notably impacted agricultural practices and biodiversity across a variety of ecosystems, encompassing land, swamp, and offshore regions. The region, comprising a diverse population of forty ethnic groups and 250 languages, grapples with persistent oil spills and misuse of crude oil, significantly affecting both the environment and their quality of life. This diverse populace is deeply concerned about the environmental consequences within the Niger Delta region (NDRN).
Fuelwood burning
According to the World Meteorological Organization, Nigeria is a leading producer of liquefied petroleum gas (LPG) and has a large reserve of natural gas. However, the high cost of cooking gas and kerosene has caused the majority of rural and semi-urban households to resort to using wood for cooking. Over 120 million Nigerians rely on firewood and charcoal for their cooking needs, according to the International Energy Agency. Research by the World Wildlife Fund (WWF) estimates that wood used for cooking accounts for about half of the trees that are removed illegally from forests globally, with a majority coming from developing countries such as Nigeria. Nigeria heavily relies on wood as a source of fuel for cooking and heating, especially in rural areas. The demand for fuelwood and charcoal leads to excessive tree cutting, contributing to deforestation. Enugu State is experiencing deforestation due to the demand for firewood.
Urban growth
As a result of the high influx of people to urban areas, there has been a need for rapid development and the provision of necessary social amenities like roads, airports, railways, bridges, and schools in these parts of the country, which are now threats to the forests as trees and vegetation are cut down or burned to achieve these development plans.For instance, most first-generation and second-generation universities like the University of Calabar were in highly forested areas, but the need to establish these schools made way for the destruction of these areas. It is noted that Nigeria is blessed with biological resources, but due to human activities, thee country is losing its nature.
Corruption
Corruption poses a significant challenge in Nigeria and plays a major role in facilitating illegal logging by both companies and forest officials. These illegal logging activities contribute to deforestation, causing significant environmental and economic consequences. An area equivalent to the size of a football field is illegally cleared every two seconds.The illegal trade of timber and its products results in substantial economic losses and environmental damages. The increasing demand for wood products has made the forestry sector lucrative, thereby promoting the prevalence of illegal logging. This destructive practice poses the primary threat to the existing tree population. Corruption is also pervasive within government institutions, leading to the exploitation of forest resources for personal gain and power. Unfortunately, these actions prioritise short-term economic benefits without considering the long-term consequences.The lack of integrity within the judiciary system contributes to the continuation of illegal logging, further exacerbating the issue of deforestation. Nigeria has faced threats of human health and even the health of its forests as a result of bad governance. It is noticed that the leaders are careless about the welfare state of their citizens and do not care about the natural resources given to us for human advancement and development.
Governmental corruption
Corrupt governments are often paid off by illegal logging companies to make them ignore their activities. Do not support corrupt politicians and systems. Reduction of corruption will go a long way towards reducing deforestation overall.
In many poorer countries, the lack of police presence and law enforcement means that illegal deforestation often goes unpunished and unnoticed for many years, even though it is destroying the country's economy and resource wealth.
For example, 70 per cent of Indonesia's timber exports come from illegal logging. Besides leaving behind extensive damage to the Rainforest, the country is also losing around US$3.7 billion every year in lost revenue. Thus, illegal logging does more harm than good to the country.
Population growth
The rapid growth of the population and the resulting demographic pressure have had a significant impact on deforestation in Nigeria. As the most populous country in Africa, Nigeria currently has a population of 162.5 million people. This demographic situation becomes a pressing issue when combined with high levels of poverty, as approximately 70 per cent (105 million) of Nigerians live below the poverty line.The consequences of overpopulation are evident in the increased construction of residential and public areas. This extensive urbanisation leads to the disturbance of soil, making it more vulnerable to erosion and flooding. The United Nations Environmental Programme (UNEP) has highlighted that Africans are experiencing deforestation at a rate twice that of the global average, underscoring the severity of the problem in Nigeria.The combination of population growth, poverty, and rapid urbanisation exacerbates deforestation in Nigeria, with detrimental consequences for the environment and communities. Efforts to address these challenges require a comprehensive approach that considers sustainable development and environmental conservation.
Grazing
It is commonly known that excessive grazing promotes the vegetation of derived Savannah to gradually evolve into Sudan Savannah, given that these animals eat tree saplings, especially during the dry season when there isn't enough grass to sustain them. Furthermore, due to these animals' consumption of older tree branches and tree seedlings, deforestation occurs. Grazers, who rear cattle, cows, and other animals, contribute to this deforestation.
Fire
Although forest fires have been linked to naturally occurring phenomena like lightning and volcanoes, people are the primary cause of forest fires. Because it is moist for the majority of the year, the Rainforest is significantly more resistant to fire than the Savannah, however it is extremely susceptible to wildfires during the dry season. The majority of the trees, including their seedlings, are killed when the Rainforest is continuously burned, resulting in grasslands.
However, due to their extremely thick bark, the shorter Savannah trees can withstand fire. For forestry and agricultural operations, fire is a tool for site preparation. It is employed to lessen the amount of underbrush and tree debris. Herdsmen light fires in order to provide their animals with new growth. Hunters may also use fire to evict wild animals. The impact of fire can be highly disastrous since tropical Rainforests, which include a wide diversity of trees, require a long time to restore themselves.
Impact on affected regions
A study conducted from 2001 to 2020 by the Nigeria Deforestation Rates & Statistics identified Edo, Ondo, Cross River, Taraba, and Ogun states as the most affected regions. However, the rainforest country profile cited Kwara, Niger, Oyo, Ogun, and Edo as the most impacted states. Edo State experienced the most significant forest loss, reaching 268,000 hectares compared to the average loss of 28,200 hectares. Other affected areas in Nigeria include Delta, Kogi, Osun, Ekiti, Bayelsa, and Oyo states.The extensive demand for cocoa and palm oils in Cross River and Ondo States has notably contributed to environmental degradation.
Consequences of deforestation in Nigeria
Deforestation threatens the rich biodiversity of Nigeria, endangering various plant and animal species dependent on forest ecosystems. The removal of forests can result in species extinction and ecological imbalances.
Forests play a critical role in mitigating climate change by absorbing carbon dioxide (CO2) from the atmosphere. Deforestation contributes to increased carbon emissions, exacerbating global warming and climate change. The reduction in trees that absorb carbon dioxide results in excess emissions, harming all species, including humans.
Forests maintain soil fertility and prevent erosion. Deforestation causes soil erosion, reducing agricultural productivity and causing soil loss and gullies. Aquatic trees’ roots, critical for fish and other species, diminish due to deforestation.
Forests are essential resources for local communities in Nigeria. Deforestation can displace indigenous people, disrupt traditional lifestyles, and lead to social and economic challenges.
Deforestation leads to habitat loss for numerous animals, endangering various species. Plants and animals are severely depleted, some facing extinction. The loss of habitats threatens numerous species, impacting the ecosystem.
Deforestation contributes to desertification in the southern parts of Nigeria.
Deforestation poses risks to Nigeria's paper industry, which heavily relies on wood pulp obtained from natural forests or plantations. Reduced wood supply can escalate production costs and quality degradation due to exposure to pests, diseases, fire, and pollution.The trees in Nigeria's forests provide shelter and regulate temperatures. Deforestation leads to a drastic temperature shift, impacting the ecosystem and its inhabitants.
Addressing deforestation in Nigeria
Deforestation issues in Nigeria have broad-ranging implications across different regions and include various challenges:
The demands on forests are varied, leading to a lack of coordinated strategies for forest protection. Indigenous communities seek to conserve forests for traditional needs, while others clear them for financial gains, causing conflict over the forest value accounting system.
Developed countries show interest in preserving Nigeria's tropical forests but provide inadequate financial support for forest conservation efforts.Issues like insufficient funding, seedling preservation challenges, and a long maturity period for trees hamper reforestation efforts. Farmers opt for quicker maturing crops, affecting the reforestation process.
Environmentalists propose deforestation alternatives but face challenges in implementation. Poverty forces individuals to clear forests for immediate food needs, with limited alternatives available.
Government initiatives, while well-intended, often result in further deforestation, creating challenges in the effort to curb forest depletion.
Rapid population growth and slow employment growth in Nigeria force people to prioritise between livelihoods and forest preservation. Poverty drives individuals to prioritise immediate food needs over forest conservation efforts.
Numerous challenges, such as land use conflicts, financial constraints, public ignorance, and encroachment by herders, contribute to the rising deforestation rates in Nigeria.The Forestry Research Institute of Nigeria (FRIN) faces multiple challenges in curbing deforestation, including finance-related issues, ignorance, and environmental insecurities. The efforts of FRIN face significant obstacles despite their commitment.
Solutions
Several methods can combat deforestation in Nigeria:
Implementing alley cropping, timber tree planting, mined area rehabilitation, and private sector tree planting to restore forest cover and ecosystem services.
Enforcing government laws, promoting eco-forestry practices, and encouraging the use of alternative energy sources.
Encouraging sustainable agricultural practices, preventing illegal logging, and promoting reduce, reuse, recycle principles for paper products.Eco-forestry, focused on minimal damage to forests while harvesting select trees, is an ideal approach for forest management.
Numerous international and local organisations such as Greenpeace, World Wildlife Fund, and others strive to protect forests through sustainable practices.
Mitigating deforestation in Nigeria
Deforestation in Nigeria is a critical issue, with the country experiencing the world's highest deforestation rate, estimated at 3.7% forest loss annually. The main causes are rapid agricultural expansion and logging, both legal and illegal, often tied to corruption and weak law enforcement.
Carbon sequestration and afforestation stand as promising solutions to combat deforestation in Nigeria and the broader global climate change crisis. Deforestation bears significant environmental, economic, and social consequences such as biodiversity loss, ecosystem disruption, and increased greenhouse gas emissions.To counter this, strategies for carbon sequestration and afforestation offer potential solutions.
Carbon sequestration
Forest-based carbon sequestration can foster economic development, environmental protection, and climate change mitigation. It includes afforestation, forest management, and avoiding deforestation on lands capable of supporting forests naturally.
Nigeria launched a National REDD+ Strategy (Reducing Emissions from Deforestation and Forest Degradation) to address deforestation and forest-related emissions.
Initiatives and responses
One approach, established in 2005, involved a collective effort by the Coalition for Rainforest Nations to reduce deforestation rates, subsequently lowering CO2 emissions. Participating developing countries would receive funding upon successfully reducing emissions, a concept aligned with REDD (Reducing emissions from deforestation and forest degradation). REDD, focusing on carbon credits, offers a financial incentive for more sustainable practices.In 2017, the Federal government of Nigeria joined other West African countries in pledging to restore approximately 10 million acres of degraded land under the African Forest Landscape Restoration Initiative (AFR100) and the Bonn Challenge.Kwara State's government proposed a plan to plant 2.5 million trees by 2047, aiming to combat deforestation in collaboration with the Nigerian Conservation Foundation. The initiative began with planting 15,000 seedlings in three communities within the state.The non-governmental organisation Foliage (Fold for Liberal Age Charity Initiative) partnered with Ondo State in a pledge to plant one million trees across the state, under the theme, "Plant a tree, Save a life."At a global level, in November 2021, Nigeria, along with over a hundred nations, pledged to halt deforestation by 2030, committing to raise $19.2 billion to stop and reverse tree loss.Additionally, in 2021, Nigeria initiated the Reducing Emissions from Deforestation (REDD+) program, aiming to reduce deforestation in collaboration with the World Bank's Forest Carbon Sharing Facility.
See also
Environmental issues in the Niger Delta
Nigeria gully erosion crisis
Fuel wood utilization in Nigeria
Wood industry in Nigeria
Reforestation in Nigeria
Bush burning in Nigeria
== References == |
environmental racism | Environmental racism, ecological racism or ecological apartheid is a form of institutional racism leading to landfills, incinerators, and hazardous waste disposal being disproportionately placed in communities of color. Internationally, it is also associated with extractivism, which places the environmental burdens of mining, oil extraction, and industrial agriculture upon indigenous peoples and poorer nations largely inhabited by people of color.Response to environmental racism has contributed to the environmental justice movement, which developed in the United States and abroad throughout the 1970s and 1980s. Environmental racism may disadvantage minority groups or numerical majorities, as in South Africa where apartheid had debilitating environmental impacts on Black people. Internationally, trade in global waste disadvantages global majorities in poorer countries largely inhabited by people of color. It also applies to the particular vulnerability of indigenous groups to environmental pollution. Environmental racism is a form of institutional racism, which has led to the disproportionate disposal of hazardous waste in communities of colour in Russia. Environmental racism is a type of inequality where people in Communities of Color and other low income communities face a disproportionate risk of exposure to pollution and related health conditions.
History
"Environmental racism" was a term coined in 1982 by Benjamin Chavis, previous executive director of the United Church of Christ (UCC) Commission for Racial Justice. In a speech opposing the placement of hazardous polychlorinated biphenyl (PCB) waste in the Warren County, North Carolina landfill, Chavis defined the term as:racial discrimination in environmental policy making, the enforcement of regulations and laws, the deliberate targeting of communities of color for toxic waste facilities, the official sanctioning of the life-threatening presence of poisons and pollutants in our communities, and the history of excluding people of color from leadership of the ecology movements.Recognition of environmental racism catalyzed the environmental justice movement that began in the 1970s and 1980s with influence from the earlier civil rights movement. Grassroots organizations and campaigns brought attention to environmental racism in policy making and emphasized the importance of minority input. While environmental racism has been historically tied to the environmental justice movement, throughout the years the term has been increasingly disassociated.
Following the events in Warren County, the UCC and US General Accounting Office released reports showing that hazardous waste sites were disproportionately located in poor minority neighborhoods. Chavis and Dr. Robert D. Bullard pointed out institutionalized racism stemming from government and corporate policies that led to environmental racism. These racist practices included redlining, zoning, and colorblind adaptation planning. Residents experienced environmental racism due to their low socioeconomic status, and lack of political representation and mobility. Expanding the definition in "The Legacy of American Apartheid and Environmental Racism", Dr. Bullard said that environmental racism:refers to any policy, practice, or directive that differentially affects or disadvantages (whether intended or unintended) individuals, groups, or communities based on race or color.
Global environmental racism
Although the term was coined in the US, environmental racism also occurs on the international level. Studies have shown that since environmental laws have become prominent in developed countries, companies have moved their waste towards the Global South. Less developed countries frequently have fewer environmental regulations and become pollution havens.Marginalized communities that do not have the socioeconomic and political means to oppose large corporations are vulnerable to environmentally racist practices that are detrimental to their health.
Environmental justice combats barriers preventing equal access to work, recreation, education, religion, and safe neighborhoods. In "Environmentalism of the Poor", Joan Martinez-Allier writes that environmental justice "points out that economic growth-unfortunately means increased environmental impacts, and it emphasizes geographical displacement of sources and sinks."
Causes
There are four factors which lead to environmental racism: lack of affordable land, lack of political power, lack of mobility, and poverty. Cheap land is sought by corporations and governmental bodies. As a result, communities which cannot effectively resist these corporations and governmental bodies and cannot access political power cannot negotiate just costs. Communities with minimized socio-economic mobility cannot relocate. Lack of financial contributions also reduces the communities' ability to act both physically and politically. Chavis defined environmental racism in five categories: racial discrimination in defining environmental policies, discriminatory enforcement of regulations and laws, deliberate targeting of minority communities as hazardous waste dumping sites, official sanctioning of dangerous pollutants in minority communities, and the exclusion of people of color from environmental leadership positions.
Minority communities often do not have the financial means, resources, and political representation to oppose hazardous waste sites. Known as locally unwanted land uses (LULUs), these facilities that benefit the whole community often reduce the quality of life of minority communities. These neighborhoods also may depend on the economic opportunities the site brings and are reluctant to oppose its location at the risk of their health. Additionally, controversial projects are less likely to be sited in non-minority areas that are expected to pursue collective action and succeed in opposing the siting of the projects in their area.
In cities in the Global North, suburbanization and gentrification lead to patterns of environmental racism. For example, white flight from industrial zones for safer, cleaner, suburban locales leaves minority communities in the inner cities and in close proximity to polluted industrial zones. In these areas, unemployment is high and businesses are less likely to invest in area improvement, creating poor economic conditions for residents and reinforcing a social formation that reproduces racial inequality. Furthermore, the poverty of property owners and residents in a municipality may be taken into consideration by hazardous waste facility developers, since areas with depressed real estate values will save developers' money.
Socioeconomic aspects
Cost–benefit analysis (CBA) is a process that places a monetary value on costs and benefits to evaluate issues. Environmental CBA aims to provide policy solutions for intangible products such as clean air and water by measuring a consumer's willingness to pay for these goods. CBA contributes to environmental racism through the valuing of environmental resources based on their utility to society. When someone is willing and able to pay more for clean water or air, their payment financially benefits society more than when people cannot pay for these goods. This creates a burden on poor communities. Relocating toxic wastes is justified since poor communities are not able to pay as much as a wealthier area for a clean environment. The placement of toxic waste near poor people lowers the property value of already cheap land. Since the decrease in property value is less than that of a cleaner and wealthier area, the monetary benefits to society are greater by dumping the toxic waste in a "low-value" area.
Impacts on health
Environmental racism impacts the health of the communities affected by poor environments. Various factors that can cause health problems include exposure to hazardous chemical toxins in landfills and rivers. Exposure to these toxins can also weaken or slow brain development. These hazards also affect the health of individuals living in these communities, showing how maintaining quality environmental health is important to ensuring that vulnerable populations are able to live healthy alongside parts of the environment they depend upon.The animal protection organization In Defense of Animals claims intensive animal agriculture negatively affects the health of nearby communities. They believe that associated manure lagoons produce hydrogen sulfide and contaminate local water supplies, leading to higher levels of miscarriages, birth defects, and disease outbreaks. These farms are disproportionately placed in low-income areas and communities of color. Other risks include exposure to pesticides, chemical run-off and particulate matter in the air. Poor cleanliness in facilities and chemical exposure may also affect agricultural workers, who are frequently people of color.The climate science community needs to work on diversifying the information available, the data they collect, as well as working to get rid of historic inequities in resources. For example, there is a serious lack of data about worsening heat waves in Africa, yet the heat waves affect many people.
Pollution
The southeastern part of the United States has experienced a large amount of pollution and minority populations have been hit with the brunt of those impacts. There are many cases of people who have died or are chronically ill from coal plants in places such as Detroit, Memphis, and Kansas City. Tennessee and West Virginia residents are frequently subject to breathing toxic ash due to blasting in the mountains for mining. Drought, flooding, the constant depletion of land and air quality determine the health and safety of the residents surrounding these areas. Communities of color and low-income status most often feel the brunt of these issues firsthand. There are many communities around the world that face the same problems. For example, the work of Desmond D'Sa focused on communities in South Durban where high pollution industries impact people forcibly relocated during Apartheid.
Reducing environmental racism
Activists have called for "more participatory and citizen-centered conceptions of justice." The environmental justice (EJ) movement and climate justice (CJ) movement address environmental racism in bringing attention and enacting change so that marginalized populations are not disproportionately vulnerable to climate change and pollution. According to the United Nations Conference on Environment and Development, one possible solution is the precautionary principle, which states that "where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation." Under this principle, the initiator of the potentially hazardous activity is charged with demonstrating the activity's safety. Environmental justice activists also emphasize the need for waste reduction in general, which would act to reduce the overall burden, as well as reduce methane emissions which in turn reduce climate change.
Studies
In wartimes, environmental racism occurs in ways that the public later learn about through reports. For example, Friends of the Earth International's Environmental Nakba report brings attention to environmental racism that has occurred in the Gaza Strip during the Israeli-Palestinian Conflict. Some Israeli practices include cutting off three days of water supply to refugee Palestinians and destroying farms.Besides studies that point out cases of environmental racism, studies have also provided information on how to go about changing regulations and preventing environmental racism from happening. In a study by Daum, Stoler and Grant on e-waste management in Accra, Ghana, the importance of engaging with different fields and organizations such as recycling firms, communities, and scrap metal traders are emphasized over adaptation strategies such as bans on burning and buy-back schemes that have not caused much effect on changing practices.Environmental justice scholars such as Laura Pulido, Department Head of Ethnic Studies and Professor at the University of Oregon, and David Pellow, Dehlsen and Department Chair of Environmental Studies and Director of the Global Environmental Justice Project at the University of California, Santa Barbara, argue that recognizing environmental racism as an element stemming from the entrenched legacies of racial capitalism is crucial to the movement, with white supremacy continuing to shape human relationships with nature and labor.
Procedural justice
Current political ideologies surrounding how to make right issues of environmental racism and environmental justice are shifting towards the idea of employing procedural justice. Procedural justice is a concept that dictates the use of fairness in the process of making decisions, especially when said decisions are being made in diplomatic situations such as the allocation of resources or the settling of disagreements. Procedural justice calls for a fair, transparent, impartial decision-making process with equal opportunity for all parties to voice their positions, opinions, and concerns. Rather than just focusing on the outcomes of agreements and the effects those outcomes have on affected populations and interest groups, procedural justice looks to involve all stakeholders throughout the process from planning through implementation. In terms of combating environmental racism, procedural justice helps to reduce the opportunities for powerful actors such as often-corrupt states or private entities to dictate the entire decision-making process and puts some power back into the hands of those who will be directly affected by the decisions being made.
Activism
Activism takes many forms. One form is collective demonstrations or protests, which can take place on a number of different levels from local to international. Additionally, in places where activists feel as though governmental solutions will work, organizations and individuals alike can pursue direct political action. In many cases, activists and organizations will form partnerships both regionally and internationally to gain more clout in pursuit of their goals.
Indigenous women's movements in Canada
There have been many resistance movements in Canada initiated by Indigenous women against environmental racism. One that was prominent and had a great impact on the movement was, The Native Women's Association of Canada's (NWAC) Sisters in Spirit Initiative. This initiative aims to create reports on the deaths and disappearances of Indigenous women in order to raise awareness and get government and civil society groups to take action. Though the Canadian federal government decided to defund the Sisters in Spirit Initiative in 2010, the NWAC continues to support women, Two-Spirit and LGBTQ+ Indigenous peoples in their fight to be heard. In other Indigenous resistance movements there is an emphasis on healing from trauma by focusing on spirituality and traditional practices in order to fight against the forces of patriarchy and racism that have caused environmental racism. Activists and Indigenous communities have also gone through state official legal routes to voice their concerns such as discussing treaties, anti-human trafficking laws, anti-violence against women laws and UNDRIP. These have been deemed insufficient solutions by Indigenous groups and communities because there are some voices that are not heard and because the state does not respect or recognize the sovereignty of Indigenous nations.
Environmental reparations
Some scientists and economists have looked into the prospect of Environmental Reparations, or forms of payment made to individuals who are affected by industry presence in some way. Potential groups to be impacted include individuals living in close proximity to industry, victims of natural disasters, and climate refugees who flee hazardous living conditions in their own country. Reparations can take many forms, from direct payouts to individuals, to money set aside for waste-site cleanups, to purchasing air monitors for low income residential neighborhoods, to investing in public transportation, which reduces green house gas emissions. As Robert Bullard writes,"Environmental Reparations represent a bridge to sustainability and equity... Reparations are both spiritual and environmental medicine for healing and reconciliation."
Policies and international agreements
The export of hazardous waste to third world countries is another growing concern. Between 1989 and 1994, an estimated 2,611 metric tons of hazardous waste was exported from Organization for Economic Cooperation and Development (OECD) countries to non-OECD countries. Two international agreements were passed in response to the growing exportation of hazardous waste into their borders. The Organization of African Unity (OAU) was concerned that the Basel Convention adopted in March 1989 did not include a total ban on the trans-boundary movement on hazardous waste. In response to their concerns, on 30 January 1991, the Pan-African Conference on Environmental and Sustainable Development adopted the Bamako Convention banning the import of all hazardous waste into Africa and limiting their movement within the continent. In September 1995, the G-77 nations helped amend the Basel Convention to ban the export of all hazardous waste from industrial countries (mainly OECD countries and Lichtenstein) to other countries. A resolution was signed in 1988 by the OAU which declared toxic waste dumping to be a "crime against Africa and the African people". Soon after, the Economic Community of West African States (ECOWAS) passed a resolution that allowed for penalties, such as life imprisonment, to those who were caught dumping toxic wastes.Globalization and the increase in transnational agreements introduce possibilities for cases of environmental racism. For example, the 1994 North American Free Trade Agreement (NAFTA) attracted US-owned factories to Mexico, where toxic waste was abandoned in the Colonia Chilpancingo community and was not cleaned up until activists called for the Mexican government to clean up the waste.Environmental justice movements have grown to become an important part of world summits. This issue is gathering attention and features a wide array of people, workers, and levels of society that are working together. Concerns about globalization can bring together a wide range of stakeholders including workers, academics, and community leaders for whom increased industrial development is a common denominator".Many policies can be expounded based on the state of human welfare. This occurs because environmental justice is aimed at creating safe, fair, and equal opportunity for communities and to ensure things like redlining do not occur. With all of these unique elements in mind, there are serious ramifications for policy makers to consider when they make decisions.
Examples by region
Africa
Nigeria
From 1956 to 2006, up to 1.5 million tons of oil were spilled in the Niger Delta, (50 times the volume spilled in the Exxon Valdez disaster). Indigenous people in the region have suffered the loss of their livelihoods as a result of these environmental issues, and they have received no benefits in return for enormous oil revenues extracted from their lands. Environmental conflicts have exacerbated ongoing conflict in the Niger Delta.
Burning of toxic waste and urban air pollution are problems in more developed areas.Ogoni people, who are indigenous to Nigeria's oil-rich Delta region have protested the disastrous environmental and economic effects of Shell Oil's drilling and denounced human rights abuses by the Nigerian government and by Shell. Their international appeal intensified dramatically after the execution in 1995 of nine Ogoni activists, including Ken Saro-Wiwa, who was a founder of the nonviolent Movement for the Survival of the Ogoni People (MOSOP).
South Africa
The linkages between the mining industry and the negative impacts it has on community and individual health has been studied and well-documented by a number of organizations worldwide. Health implications of living in proximity to mining operations include effects such as pregnancy complications, mental health issues, various forms of cancer, and many more. During the Apartheid period in South Africa, the mining industry grew quite rapidly as a result of the lack of environmental regulation. Communities in which mining corporations operate are usually those with high rates of poverty and unemployment. Further, within these communities, there is typically a divide among the citizens on the issue of whether the pros of mining in terms of economic opportunity outweigh the cons in terms of the health of the people in the community. Mining companies often try to use these disagreements to their advantage by magnifying this conflict. Additionally, mining companies in South Africa have close ties with the national government, skewing the balance of power in their favor while simultaneously excluding local people from many decision-making processes. This legacy of exclusion has had lasting effects in the form of impoverished South Africans bearing the brunt of ecological impacts resulting from the actions of, for example, mining companies. Some argue that to effectively fight environmental racism and achieve some semblance of justice, there must also be a reckoning with the factors that form situations of environmental racism such as rooted and institutionalized mechanisms of power, social relations, and cultural elements.The term "energy poverty" is used to refer to "a lack of access to adequate, reliable, affordable and clean energy carriers and technologies for meeting energy service needs for cooking and those activities enabled by electricity to support economic and human development". Numerous communities in South Africa face some sort of energy poverty. South African women are typically in charge of taking care of both the home and the community as a whole. Those in economically impoverished areas not only have to take on this responsibility, but there are numerous other challenges they face. Discrimination on the basis of gender, race, and class are all still present in South African culture. Because of this, women, who are the primary users of public resources in their work at home and for the community, are often excluded from any decision-making about control and access to public resources. The resulting energy poverty forces women to use sources of energy that are expensive and may be harmful both to their own health and that of the environment. Consequently, several renewable energy initiatives have emerged in South Africa specifically targeting these communities and women to correct this situation.
Asia
China
From the mid-1990s until about 2001, it is estimated that some 50 to 80 percent of the electronics collected for recycling in the western half of the United States was being exported for dismantling overseas, predominantly to China and Southeast Asia. This scrap processing is quite profitable and preferred due to an abundant workforce, cheap labour, and lax environmental laws.Guiyu, China, is one of the largest recycling sites for e-waste, where heaps of discarded computer parts rise near the riverbanks and compounds, such as cadmium, copper, lead, PBDEs, contaminate the local water supply. Water samples taken by the Basel Action Network in 2001 from the Lianjiang River contained lead levels 190 times higher than WHO safety standards. Despite contaminated drinking water, residents continue to use contaminated water over expensive trucked-in supplies of drinking water. Nearly 80 percent of children in the e-waste hub of Guiyu, China, suffer from lead poisoning, according to recent reports. Before being used as the destination of electronic waste, most of Guiyu was composed of small farmers who made their living in the agriculture business. However, farming has been abandoned for more lucrative work in scrap electronics. "According to the Western press and both Chinese university and NGO researchers, conditions in these workers' rural villages are so poor that even the primitive electronic scrap industry in Guiyu offers an improvement in income".Researchers have found that as rates of hazardous air pollution increase in China, the public has mobilized to implement measures to curb detrimental impacts. Areas with ethnic minorities and western regions of the country tend to carry disproportionate environmental burdens.
India
Union Carbide Corporation is the parent company of Union Carbide India Limited which outsources its production to an outside country. Located in Bhopal, India, Union Carbide India Limited primarily produced the chemical methyl isocyanate used for pesticide manufacture. On 3 December 1984, a cloud of methyl isocyanate leaked as a result of the toxic chemical mixing with water in the plant in Bhopal. Approximately 520,000 people were exposed to the toxic chemical immediately after the leak. Within the first 3 days after the leak an estimated 8,000 people living within the vicinity of the plant died from exposure to the methyl isocyanate. Some people survived the initial leak from the factory, but due to improper care and improper diagnoses many have died. As a consequence of improper diagnoses, treatment may have been ineffective and this was precipitated by Union Carbide refusing to release all the details regarding the leaked gases and lying about certain important information. The delay in supplying medical aid to the victims of the chemical leak made the situation for the survivors even worse. Many today are still experiencing the negative health impacts of the methyl isocyanate leak, such as lung fibrosis, impaired vision, tuberculosis, neurological disorders, and severe body pains.The operations and maintenance of the factory in Bhopal contributed to the hazardous chemical leak. The storage of huge volumes of methyl isocyanate in a densely inhabited area, was in contravention with company policies strictly practiced in other plants. The company ignored protests that they were holding too much of the dangerous chemical for one plant and built large tanks to hold it in a crowded community. Methyl isocyanate must be stored at extremely low temperatures, but the company cut expenses to the air conditioning system leading to less than optimal conditions for the chemical. Additionally, Union Carbide India Limited never created disaster management plans for the surrounding community around the factory in the event of a leak or spill. State authorities were in the pocket of the company and therefore did not pay attention to company practices or implementation of the law. The company also cut down on preventive maintenance staff to save money.
Russia
Europe
Eastern Europe
Predominantly living in Central and Eastern Europe, with pockets of communities in the Americas and Middle East, the ethnic Romani people have been subjected to environmental exclusion. Often referred to as gypsies or the gypsy threat, the Romani people of Eastern Europe mostly live under the poverty line in shanty towns or slums. Facing issues such as long term exposure to harmful toxins given their locations to waste dumps and industrial plants, along with being refused environmental assistance like clean water and sanitation, the Romani people have been facing racism via environmental means. Many countries such has Romania, Bulgaria and Hungary have tried to implement environmental protection initiatives across their respected countries, however most have failed due to "addressing the conditions of Roma communities have been framed through an ethnic lens as "Roma issues". Only recently has some form of environmental justice for the Romani people come to light. Seeking environmental justice in Europe, the Environmental Justice Program is now working with human rights organizations to help fight environmental racism.
It is important to note that in the "Discrimination in the EU in 2009" report, conducted by the European Commission, "64% of citizens with Roma friends believe discrimination is widespread, compared to 61% of citizens without Roma friends."
France
Exporting toxic wastes to countries in the Global South is one form of environmental racism that occurs on an international basis. In one alleged instance, in 2006, the French aircraft carrier Clemenceau was prohibited from entering Alang, an Indian ship-breaking yard, due to a lack of clear documentation about its toxic contents. French President Jacques Chirac ultimately ordered the carrier, which contained tons of hazardous materials including asbestos and PCBs, to return to France.
United Kingdom
In the UK environmental racism (or also climate racism) has been called out by multiple action groups such as the Wretched of the Earth call out letter in 2015 and Black Lives Matter in 2016.
North America
Canada
See more: Environmental Racism in Nova Scotia
In Canada, progress is being made to address environmental racism (especially in Nova Scotia's Africville community) with the passing of Bill 111, An Act to Address Environmental Racism in the Nova Scotia Legislature. Still, however, indigenous communities such as the Aamjiwnaang First Nation continue to be harmed by pollution from the Canadian chemical industry centered in Southeast Ontario.Forty percent of Canada's petrochemical industry is packed into a 15-square mile radius of Sarnia, Ontario. Immediately south of the petrochemical plants is the Aamjiwnaang reservation with a population of 850 Aamjiwnaang First Nation members. Since 2002, coalitions of indigenous individuals have fought the disproportionate concentration of pollution in their neighborhood.
Impact on Canadian Indigenous women
Environmental racism affects particularly women and especially Indigenous women and women of color. Many of these communities reside in rural areas rich in natural resources that are very attractive to extractive industries. These effects not only pollute the environment but also have detrimental effects on both physical and mental health. Many of these extractive industries such as oil and gas and mining have caused pollution to water sources, food sources as well as effects in air quality. This has started to affect people's bodies, especially those of women. This is because the toxins and poisons from extractive industries affect women's reproductive organs, can cause cancer as well as the health of their children. The harms of this activity last through generations in these communities, for example in the Indigenous community of Grassy Narrows in Northern Ontario, they are still dealing with health effects from high mercury levels that have affected drinking water and fish in the region that occurred from a spill in the 1960s.It is not just the pollution that affects women but also social changes that extractive industries bring. For example, in small communities that have extractive industries the rate of domestic violence is significantly higher due to the fact that there is an influx of single men that arrive in the community. This overall can create toxic home lives that can lead to substance abuse as a coping mechanism, which also creates more fatalities and abuse. These worker camps have also contributed to the disproportionate amount of missing and murdered Indigenous women across North America. The consequences of extractive industries also disproportionately effect transgender, Two-Spirit and other members of the LGBTQ+ community. However, most of the adverse health issues befall the workers of the extractive industries themselves, triggering various societal vicious cycles.
Mexico
The Cucapá are a group of indigenous people that live near the U.S.-Mexico border, mainly in Mexico but some in Arizona as well. For many generations, fishing on the Colorado River was the Cucapá's main means of subsistence. In 1944, the United States and Mexico signed a treaty that effectively awarded the United States rights to about 90% of the water in the Colorado River, leaving Mexico with the remaining 10%. Over the last few decades, the Colorado River has mostly dried up south of the border, presenting many challenges for people such as the Cucapá. Shaylih Meuhlmann, author of the ethnography Where the River Ends: Contested Indigeneity in the Mexican Colorado Delta, gives a first-hand account of the situation from Meuhlmann's point of view as well as many accounts from the Cucapá themselves. In addition to the Mexican portion of the Colorado River being left with a small fraction of the overall available water, the Cucapá are stripped of the right to fish on the river, the act being made illegal by the Mexican government in the interest of preserving the river's ecological health. The Cucapá are, thus, living without access to sufficient natural sources of freshwater as well as without their usual means of subsistence. The conclusion drawn in many such cases is that the negotiated water rights under the US-Mexican treaty that lead to the massive disparity in water allotments between the two countries boils down to environmental racism.
1,900 maquiladoras are found near the US-Mexico border. Maquiladoras are companies that are usually owned by foreign entities and import raw materials, pay workers in Mexico to assemble them, and ship the finish products overseas to be sold. While Maquiladoras provide jobs, they often pay very little. These plants also bring pollution to rural Mexican towns, creating health impacts for the poor families that live nearby.
In Mexico, industrial extraction of oil, mining, and gas, as well as the mass removal of slowly renewable resources such as aquatic life, forests, and crops. Legally, the state owns natural resources, but is able to grant concessions to industry through the form of taxes paid. In recent decades, a shift towards refocusing these tax dollars accumulated on the communities most impacted by the health, social, and economic impacts of extractivism has taken place. However, many indigenous and rural community leaders argue that they ought to consent to companies extracting and polluting their resources, rather than be paid reparations after the fact.
United States
A US Government Accountability Office study, completed in response to the 1982 protests of the PCB landfill in Warren County, was among the first studies that drew correlations between the racial and economic background of communities and the location of hazardous waste facilities. However, the study was limited in scope by focusing only on off-site hazardous waste landfills in the Southeastern United States.In response to this limitation, in 1987, the United Church of Christ Commission for Racial Justice (CRJ) directed a comprehensive national study on demographic patterns associated with the location of hazardous waste sites. The CRJ national study conducted two examinations of areas surrounding commercial hazardous waste facilities and the location of uncontrolled toxic waste sites. The first study examined the association between race and socio-economic status and the location of commercial hazardous waste treatment, storage, and disposal facilities. After statistical analysis, the first study concluded that "the percentage of community residents that belonged to a racial or ethnic group was a stronger predictor of the level of commercial hazardous waste activity than was household income, the value of the homes, the number of uncontrolled waste sites, or the estimated amount of hazardous wastes generated by industry". A second study examined the presence of uncontrolled toxic waste sites in ethnic and racial minority communities and found that three of every five African and Hispanic Americans lived in communities with uncontrolled waste sites. A seprate 1991 study found race to be the most influential variable in predicting where waste facilities were located.In 1994, President Bill Clinton's issued Executive Order 12898 which directed agencies to develop a strategy to manage environmental justice. In 2002, Faber and Krieg found a correlation between higher air pollution exposure and low performance in schools and found that 92% of children at five Los Angeles public schools with the poorest air quality were of a minority background disproportionate to Los Angeles' then 70% minority population.
As a result of the placement of hazardous waste facilities, minority populations experience greater exposure to harmful chemicals and suffer from health outcomes that affect their ability at work and in schools. A comprehensive study of particulate emissions across the United States, published in 2018, found that Black people were exposed to 54% more particulate matter emissions (soot) than the average American. In a study that analyzed exposure to air pollution from vehicles in the American Mid-Atlantic and American North-East, it was found that African Americans were exposed to 61% more particulate matter than whites, with Latinos exposed to 75% more and Asians exposed to 73% more. Overall, minorities experienced 66% more pollution exposure from particulate matter than the white population.
Carl Zimring states that environmental racism is often engrained in day-to-day work and living conditions. Examples cited of environmental racism in the US include the Dakota Access Pipeline (where a portion of the proposed 1,172 mile pipeline would pass near to the Standing Rock Indian Reservation), the Flint water crisis (which affected a town that was 55% African American), cancer alley (Louisiana), as well as the government response to hurricane Katrina (where a mandatory evacuation was not ordered in the majority-Black city of New Orleans until 20 hours before Hurricane Katrina made landfall).Overall, the US has worked to reduce environmental racism with municipality changes. These policies help develop further change. Some cities and counties have taken advantage of environmental justice policies and applied it to the public health sector.
Native American peoples
Native scholars have discussed whether the concept of Environmental Justice make sense in the context of Native Americans and settler colonialism. This is because Native Americans' legal status differs from other marginalized peoples in the United States. As such, Colville scholar Dina Gilio-Whitaker explains that "because Indigenous peoples' relationships to the state (i.e. the United States) are different than those of ethnic minorities, environmental justice must exceed equality and be able to live up to the concepts of tribal sovereignty, treaty rights, and government-to-government relationships."Gilio-Whitaker further argues that the distributive justice model on which evironmental racism is based is not helpful to Native communities: "Frameworks for EJ in non-Native communities that rely on distributive justice are built on capitalistic American values of land as commodity — i.e. private property — on lands that were expropriated from Native peoples." In contrast, Native peoples have very different relationships to land beyond the modes of land as commodity.Indigenous studies scholars have argued that environmental racism, however, began in the United States with the arrival of settler colonialism.
Potawatomi philosopher Kyle Powys Whyte and Lower Brule Sioux historian Nick Estes explain that Native peoples have already lived through one environmental apocalypse, the coming of colonialism. Métis geographer Zoe Todd and academic Heather Davis have also argued that settler colonialism is "responsible for contemporary environmental crisis." In that way, it has been shown that climate change has been weaponized against Indigenous American peoples, as Founding Fathers such as Thomas Jefferson and Benjamin Franklin deforested the Americas and welcomed warmer weather, which they thought would displace Native peoples and enrich the United States. Thus, "the United States, from its birth, played a key role in causing catastrophic environmental change." Whyte explains further that "Anthropogenic (human-caused) climate change is an intensification of environmental change imposed on Indigenous peoples by colonialism."Anishinaabe scholar Leanne Betasamosake Simpson has also argued, "We should be thinking of climate change as part of a much longer series of ecological catastrophes caused by colonialism and accumulation-based society."The Indian Removal Act of 1830 and the Trail of Tears may also be considered early examples of environmental racism in the United States. As a result of the former, by 1850, all tribes east of the Mississippi had been removed to western lands and essentially confined them to "lands that were too dry, remote, or barren to attract the attention of settlers and corporations." During World War II, military facilities were often located conterminous to Indian reservations, which led to a situation in which "a disproportionate number of the most dangerous military facilities are located near Native American lands." A study analyzing the approximately 3,100 counties in the Continental United States found that Native American lands are positively associated with the count of sites with unexploded ordnance deemed extremely dangerous. The study also found that the risk assessment code (RAC), which is used to measure dangerousness of sites with unexploded ordnance, can sometimes conceal how much of a threat these sites are to Native Americans. The hazard probability, or probability that a hazard will harm people or ecosystems, is sensitive to the proximity of public buildings such as schools and hospitals. Those parameters neglect elements of tribal life such as subsistence consumption, ceremonial use of plants and animals, and low population densities. Because those tribal-unique factors are not considered, Native American lands can often receive low-risk scores, despite threats to their way of life. The hazard probability does not take Native Americans into account when considering the people or ecosystems that could be harmed. Locating military facilities coterminous to reservations lead to a situation in which "a disproportionate number of the most dangerous military facilities are located near Native American lands."More recently, Native American lands have been used for waste disposal and illegal dumping by the US and multinational corporations. The International Tribunal of Indigenous People and Oppressed Nations, convened in 1992 to examine the history of criminal activity against indigenous groups in the United States, and published a Significant Bill of Particulars outlining grievances indigenous peoples had with the US. This included allegations that the US "deliberately and systematically permitted, aided, and abetted, solicited and conspired to commit the dumping, transportation, and location of nuclear, toxic, medical, and otherwise hazardous waste materials on Native American territories in North America and has thus created a clear and present danger to the health, safety, and physical and mental well-being of Native American People."
Oceania
Australia
The Australian Environmental Justice (AEJ) is a multidisciplinary organization which is closely partnered with Friends of the Earth Australia (FoEA). The AEJ focuses on recording and remedying the effects of environmental injustice throughout Australia. The AEJ has addressed issues which include "production and spread of toxic wastes, pollution of water, soil and air, erosion and ecological damage of landscapes, water systems, plants and animals". The project looks for environmental injustices that disproportionately affect a group of people or impact them in a way they did not agree to.
The Western Oil Refinery started operating in Bellevue, Western Australia, in 1954. It was permitted rights to operate in Bellevue by the Australian government in order to refine cheap and localized oil. In the decades following, many residents of Bellevue claimed they felt respiratory burning due to the inhalation of toxic chemicals and nauseating fumes. Lee Bell from Curtin University and Mariann Lloyd-Smith from the National Toxic Network in Australia stated in their article, "Toxic Disputes and the Rise of Environmental Justice in Australia" that "residents living close to the site discovered chemical contamination in the ground- water surfacing in their back yards". Under immense civilian pressure, the Western Oil Refinery (now named Omex) stopped refining oil in 1979. Years later, citizens of Bellevue formed the Bellevue Action Group (BAG) and called for the government to give aid towards the remediation of the site. The government agreed and $6.9 million was allocated to clean up the site. Remediation of site began in April 2000.
Micronesia
Papua New Guinea
Starting production in 1972, the Panguna mine in Papua New Guinea has been a source of environmental racism. Although closed since 1989 due to conflict on the island, the indigenous peoples (Bougainvillean) have suffered both economically and environmentally from the creation of the mine. Terrance Wesley-Smith and Eugene Ogan, University of Hawaii and University of Minnesota respectively, stated that the Bougainvillean's "were grossly disadvantaged from the beginning and no subsequent renegotiation has been able to remedy the situation". These indigenous people faced issues such as losing land which could have been used for agricultural practices for the Dapera and Moroni villages, undervalued payment for the land, poor relocation housing for displaced villagers and significant environmental degradation in the surrounding areas.
Polynesia
South America
The Andes
Extracitivism, or the process of humans removing natural, raw resources from land to be used in product manufacturing, can have detrimental environmental and social repercussions. Research analyzing environmental conflicts in four Andean countries (Colombia, Ecuador, Peru, and Bolivia) found that conflicts tend to disproportionately affect indigenous populations and those with Afro-descent, and peasant communities. These conflicts can arise as a result of shifting economic patterns, land use policies, and social practices due to extractivist industries.
Chile
Beginning in the late 15th century when European explorers began sailing to the New World, the violence towards and oppression of indigenous populations have had lasting effects to this day. The Mapuche-Chilean land conflict has roots dating back several centuries. When the Spanish went to conquer parts of South America, the Mapuche were one of the only indigenous groups to successfully resist Spanish domination and maintain their sovereignty. Moving forward, relations between the Mapuche and the Chilean state declined into a condition of malice and resentment. Chile won its independence from Spain in 1818 and, wanting the Mapuche to assimilate into the Chilean state, began crafting harmful legislation that targeted the Mapuche. The Mapuche have based their economy, both historically and presently, on agriculture. By the mid-19th century, the state resorted to outright seizure of Mapuche lands, forcefully appropriating all but 5% of Mapuche lineal lands. An agrarian economy without land essentially meant that the Mapuche no longer had their means of production and subsistence. While some land has since been ceded back to the Mapuche, it is still a fraction of what the Mapuche once owned. Further, as the Chilean state has attempted to rebuild its relationship with the Mapuche community, the connection between the two is still strained by the legacy of the aforementioned history.
Today, the Mapuche people are the largest population of indigenous people in Chile, with 1.5 million people accounting for over 90% of the country's indigenous population.
Ecuador
Due to their lack of environmental laws, emerging countries like Ecuador have been subjected to environmental pollution, sometimes causing health problems, loss of agriculture, and poverty. In 1993, 30,000 Ecuadorians, which included Cofan, Siona, Huaorani, and Quichua indigenous people, filed a lawsuit against Texaco oil company for the environmental damages caused by oil extraction activities in the Lago Agrio oil field. After handing control of the oil fields to an Ecuadorian oil company, Texaco did not properly dispose of its hazardous waste, causing great damages to the ecosystem and crippling communities. Additionally, UN experts have said that Afro-Ecuadorians and other people of African descent in Ecuador have faced greater challenges than other groups in accessing clean water, with minimal response from the State.
Haiti
Legacies of racism exist in Haiti, and affect the way that food grown by peasants domestically is viewed compared to foreign food. Racially coded hierarchies are associated with food that differs in origin – survey respondents reported that food such as millet and root crops are associated with negative connotations, while foreign-made food such as corn flakes and spaghetti are associated with positive connotations. This reliance on imports over domestic products reveals how racism ties to commercial tendencies – a reliance on imports can increase costs, fossil fuel emissions, and further social inequality as local farmers loose business.
See also
References
External links
United States Environmental Protection Agency - Environmental Justice
Environmental Justice and Environmental Racism
Marathon for Justice, 2016 - Film on Environmental Racism [1] Archived 2018-02-26 at the Wayback Machine
Water and Environmental Racism. Lesson by Matt Reed and Ursula Wolfe-Rocca |
agriculture in bangladesh | Agriculture is the largest employment sector in Bangladesh, making up 14.2 percent of Bangladesh's GDP in 2017 and employing about 42.7 percent of the workforce. The performance of this sector has an overwhelming impact on major macroeconomic objectives like employment generation, poverty alleviation, human resources development, food security, and other economic and social forces. A plurality of Bangladeshis earn their living from agriculture. Due to a number of factors, Bangladesh's labour-intensive agriculture has achieved steady increases in food grain production despite the often unfavorable weather conditions. These include better flood control and irrigation, a generally more efficient use of fertilisers, as well as the establishment of better distribution and rural credit networks.Although rice and jute are the primary crops, maize and vegetables are assuming greater importance. Due to the expansion of irrigation networks, some wheat producers have switched to cultivation of maize which is used mostly as poultry feed. Tea is grown in the northeast. Because of Bangladesh's fertile soil and normally ample water supply, rice can be grown and harvested three times a year in many areas. The country is among the top producers of rice (third), potatoes (seventh), tropical fruits (sixth), jute (second), and farmed fish (fifth). With 35.8 million metric tons produced in 2000, rice is Bangladesh's principal crop. In comparison to rice, wheat output in 1999 was 1.9 million tonnes (1,900,000 long tons; 2,100,000 short tons).
Population pressure continues to place a severe burden on productive capacity, creating a food deficit, especially of wheat. Foreign assistance and commercial imports fill the gap. Underemployment remains a serious problem, and a growing concern for Bangladesh's agricultural sector will be its ability to absorb additional manpower. Finding alternative sources of employment will continue to be a daunting problem for future governments, particularly with the increasing numbers of landless peasants who already account for about half the rural labour force. Other challenges facing the sector include environmental issues: insecticides, water management challenges, pollution, and land degradation all effect the agricultural system in Bangladesh. Bangladesh is particularly vulnerable to climate change, with extreme weather and temperature changes significantly changing the conditions for growing food. Adaptation of the agricultural sector is a major concern for policy addressing climate change in Bangladesh.
Food crops
Although rice, wheat, mango and jute are the primary crops, rice and wheat are mostly main crops or food crops of some countries. Due to the expansion of irrigation networks, some wheat producers have switched to cultivation of maize which is used mostly as poultry feed. Tea is grown in the northeast. Because of Bangladesh's fertile soil and normally ample water supply, rice can be grown and harvested three times a year in many areas. Due to a number of factors, Bangladesh's labour-intensive agriculture has achieved steady increases in food grain production despite the often unfavorable weather conditions. These include better flood control and irrigation, a generally more efficient use of fertilizers, and the establishment of better distribution and rural credit networks. With 28.8 million metric tons produced in 2005–2006 (July–June), rice is Bangladesh's principal crop. By comparison, wheat output in 2005–2006 was 9 million metric tons. Population pressure continues to place a severe burden on productive capacity, creating a food deficit, especially of wheat. Foreign assistance and commercial imports fill the gap. Underemployment remains a serious problem, and a growing concern for Bangladesh's agricultural sector will be its ability to absorb additional manpower.Food grains are cultivated primarily for subsistence. Only a small percentage of total production makes its way into commercial channels. Other Bangladeshi food crops, however, are grown chiefly for the domestic market. They include potatoes and sweet potatoes, with a combined record production of 1.9 million tons in FY 1984; oilseeds, with an annual average production of 250,000 tons; and fruits such as bananas, jackfruit, mangoes, and pineapples. Estimates of sugarcane production put annual production at more than 7 million tons per year, most of it processed into a coarse, unrefined sugar known as gur, and sold domestically.
Rice
Bangladesh is the fourth largest rice producing country in the world. National sales of the classes of insecticide used on rice, including granular carbofuran, synthetic pyrethroids, and malathion exceeded 13,000 tons of formulated product in 2003. The insecticides not only represent an environmental threat, but are a significant expenditure to poor rice farmers. The Bangladesh Rice Research Institute is working with various NGOs and international organisations to reduce insecticide use in rice.
Wheat
Wheat is not a traditional crop in Bangladesh, and in the late 1980s little was consumed in rural areas. During the 1960s and early 1970s, however, it was the only commodity for which local consumption increased because external food aid was most often provided in the form of wheat. In the first half of the 1980s, domestic wheat production rose to more than 1 million tons per year but was still only 7 to 9 percent of total food grain production. Record production of nearly 1.5 million tons was achieved in FY 1985, but the following year saw a decrease to just over 1 million tons. About half the wheat is grown on irrigated land. The proportion of land devoted to wheat remained essentially unchanged between 1980 and 1986, at a little less than 6 percent of total planted area.
Wheat also accounts for the great bulk of imported food grains, exceeding 1 million tons annually and going higher than 1.8 million tons in FY 1984, FY 1985, and FY 1987. The great bulk of the imported wheat is financed under aid programs of the United States, the European Economic Community.
Animal agriculture
Poultry
Shrimp
Commodity crops
Tea
Edible Oil
Mustard oil production in Bangladesh rose by 3.35 lakh tones to 11.52 lakh tones this year, according to the agriculture ministry. Mustard oil output worth Tk 3,000 crore in Bangladesh.
Environmental issues
Insecticides
National sales of the classes of insecticide used on rice, including granular carbofuran, synthetic pyrethroids, and malathion exceeded 13,000 tons of formulated product in 2003. Insecticides not only represent an environmental threat, but are a significant expenditure to poor rice farmers. The Bangladesh Rice Research Institute is working with various NGOs and international organisations to reduce insecticide use in rice.
Climate change
Government
Ministry of Agriculture
See also
Poultry farming In Bangladesh
Forestry in Bangladesh
Fishing in Bangladesh
Economy of Bangladesh
References
This article incorporates text from this source, which is in the public domain. Country Studies. Federal Research Division. |
animal husbandry | Animal husbandry is the branch of agriculture concerned with animals that are raised for meat, fibre, milk, or other products. It includes day-to-day care, selective breeding, and the raising of livestock. Husbandry has a long history, starting with the Neolithic Revolution when animals were first domesticated, from around 13,000 BC onwards, predating farming of the first crops. By the time of early civilisations such as ancient Egypt, cattle, sheep, goats, and pigs were being raised on farms.
Major changes took place in the Columbian exchange, when Old World livestock were brought to the New World, and then in the British Agricultural Revolution of the 18th century, when livestock breeds like the Dishley Longhorn cattle and Lincoln Longwool sheep were rapidly improved by agriculturalists, such as Robert Bakewell, to yield more meat, milk, and wool. A wide range of other species, such as horse, water buffalo, llama, rabbit, and guinea pig, are used as livestock in some parts of the world. Insect farming, as well as aquaculture of fish, molluscs, and crustaceans, is widespread. Modern animal husbandry relies on production systems adapted to the type of land available. Subsistence farming is being superseded by intensive animal farming in the more developed parts of the world, where, for example, beef cattle are kept in high-density feedlots, and thousands of chickens may be raised in broiler houses or batteries. On poorer soil, such as in uplands, animals are often kept more extensively and may be allowed to roam widely, foraging for themselves.
Most livestock are herbivores, except for pigs and chickens which are omnivores. Ruminants like cattle and sheep are adapted to feed on grass; they can forage outdoors or may be fed entirely or in part on rations richer in energy and protein, such as pelleted cereals. Pigs and poultry cannot digest the cellulose in forage and require other high-protein foods.
Etymology
The verb to husband, meaning "to manage carefully," derives from an older meaning of husband, which in the 14th century referred to the ownership and care of a household or farm, but today means the "control or judicious use of resources," and in agriculture, the cultivation of plants or animals. Farmers and ranchers who raise livestock are considered to practice animal husbandry.
History
Birth of husbandry
The domestication of livestock was driven by the need to have food on hand when hunting was unproductive. The desirable characteristics of a domestic animal are that it should be useful to the domesticator, should be able to thrive in his or her company, should breed freely, and be easy to tend. Domestication was not a single event, but a process repeated at various periods in different places. Sheep and goats were the animals that accompanied the nomads in the Middle East, while cattle and pigs were associated with more settled communities. The first wild animal to be domesticated was the dog. Half-wild dogs, perhaps starting with young individuals, may have been tolerated as scavengers and killers of vermin, and being naturally pack hunters, were predisposed to become part of the human pack and join in the hunt. Prey animals, sheep, goats, pigs and cattle, were progressively domesticated early in the history of agriculture. Pigs were domesticated in the Near East between 8,500 and 8000 BC, sheep and goats in or near the Fertile Crescent about 8,500 BC, and cattle from wild aurochs in the areas of modern Turkey and Pakistan around 8,500 BC. A cow was a great advantage to a villager as she produced more milk than her calf needed, and her strength could be put to use as a working animal, pulling a plough to increase production of crops, and drawing a sledge, and later a cart, to bring the produce home from the field. Draught animals were first used about 4,000 BC in the Middle East, increasing agricultural production immeasurably.In southern Asia, the elephant was domesticated by 6,000 BC. Fossilised chicken bones dated to 5040 BC have been found in northeastern China, far from where their wild ancestors lived in the jungles of tropical Asia, but archaeologists believe that the original purpose of domestication was for the sport of cockfighting. Meanwhile, in South America, the llama and the alpaca had been domesticated, probably before 3,000 BC, as beasts of burden and for their wool. Neither was strong enough to pull a plough which limited the development of agriculture in the New World. Horses occur naturally on the steppes of Central Asia and their domestication began around 3,000 BC in the Black Sea and Caspian Sea region. Although horses were originally seen as a source of meat, their use as pack animals and for riding followed. Around the same time, the wild ass was being tamed in Egypt. Camels were domesticated soon after this, with the Bactrian camel in Mongolia and the Arabian camel becoming beasts of burden. By 1000 BC, caravans of Arabian camels were linking India with Mesopotamia and the Mediterranean.
Ancient civilisations
In ancient Egypt, cattle were the most important livestock, and sheep, goats, and pigs were also kept; poultry including ducks, geese, and pigeons were captured in nets and bred on farms, where they were force-fed with dough to fatten them. The Nile provided a plentiful source of fish. Honey bees were domesticated from at least the Old Kingdom, providing both honey and wax. In ancient Rome, all the livestock known in ancient Egypt were available. In addition, rabbits were domesticated for food by the first century BC. To help flush them out from their burrows, the polecat was domesticated as the ferret, its use described by Pliny the Elder.
Medieval husbandry
In northern Europe, agriculture including animal husbandry went into decline when the Roman empire collapsed. Some aspects such as the herding of animals continued throughout the period. By the 11th century, the economy had recovered and the countryside was again productive. The Domesday Book recorded every parcel of land and every animal in England: "there was not one single hide, nor a yard of land, nay, moreover ... not even an ox, nor a cow, nor a swine was there left, that was not set down in [the king's] writ." For example, the royal manor of Earley in Berkshire, one of thousands of villages recorded in the book, had in 1086 "2 fisheries worth [paying tax of] 7s and 6d [each year] and 20 acres of meadow [for livestock]. Woodland for [feeding] 70 pigs." The improvements of animal husbandry in the medieval period in Europe went hand in hand with other developments. Improvements to the plough allowed the soil to be tilled to a greater depth. Horses took over from oxen as the main providers of traction, new ideas on crop rotation were developed and the growing of crops for winter fodder gained ground. Peas, beans and vetches became common; they increased soil fertility through nitrogen fixation, allowing more livestock to be kept.
Columbian exchange
Exploration and colonisation of North and South America resulted in the introduction into Europe of such crops as maize, potatoes, sweet potatoes and manioc, while the principal Old World livestock – cattle, horses, sheep and goats – were introduced into the New World for the first time along with wheat, barley, rice and turnips.
Agricultural Revolution
Selective breeding for desired traits was established as a scientific practice by Robert Bakewell during the British Agricultural Revolution in the 18th century. One of his most important breeding programs was with sheep. Using native stock, he was able to quickly select for large, yet fine-boned sheep, with long, lustrous wool. The Lincoln Longwool was improved by Bakewell and in turn the Lincoln was used to develop the subsequent breed, named the New (or Dishley) Leicester. It was hornless and had a square, meaty body with straight top lines. These sheep were exported widely and have contributed to numerous modern breeds. Under his influence, English farmers began to breed cattle for use primarily as beef. Long-horned heifers were crossed with the Westmoreland bull to create the Dishley Longhorn.The semi-natural, unfertilised pastures formed by traditional agricultural methods in Europe were managed by grazing and mowing. As the ecological impact of this land management strategy is similar to the impact of such natural disturbances as a wildfire, this agricultural system shares many beneficial characteristics with a natural habitat, including the promotion of biodiversity. This strategy is declining in Europe today due to the intensification of agriculture. The mechanized and chemical methods used are causing biodiversity to decline.
Practices
Systems
Traditionally, animal husbandry was part of the subsistence farmer's way of life, producing not only the food needed by the family but also the fuel, fertiliser, clothing, transport and draught power. Killing the animal for food was a secondary consideration, and wherever possible its products such as wool, eggs, milk and blood (by the Maasai) were harvested while the animal was still alive. In the traditional system of transhumance, people and livestock moved seasonally between fixed summer and winter pastures; in montane regions the summer pasture was up in the mountains, the winter pasture in the valleys.Animals can be kept extensively or intensively. Extensive systems involve animals roaming at will, or under the supervision of a herdsman, often for their protection from predators. Ranching in the Western United States involves large herds of cattle grazing widely over public and private lands. Similar cattle stations are found in South America, Australia and other places with large areas of land and low rainfall. Ranching systems have been used for sheep, deer, ostrich, emu, llama and alpaca.In the uplands of the United Kingdom, sheep are turned out on the fells in spring and graze the abundant mountain grasses untended, being brought to lower altitudes late in the year, with supplementary feeding being provided in winter. In rural locations, pigs and poultry can obtain much of their nutrition from scavenging, and in African communities, hens may live for months without being fed, and still produce one or two eggs a week.
At the other extreme, in the more developed parts of the world, animals are often intensively managed; dairy cows may be kept in zero-grazing conditions with all their forage brought to them; beef cattle may be kept in high density feedlots; pigs may be housed in climate-controlled buildings and never go outdoors; poultry may be reared in barns and kept in cages as laying birds under lighting-controlled conditions. In between these two extremes are semi-intensive, often family-run farms where livestock graze outside for much of the year, silage or hay is made to cover the times of year when the grass stops growing, and fertiliser, feed, and other inputs are brought onto the farm from outside.
Feeding
Animals used as livestock are predominantly herbivorous, the main exceptions being the pig and the chicken which are omnivorous. The herbivores can be divided into "concentrate selectors" which selectively feed on seeds, fruits and highly nutritious young foliage, "grazers" which mainly feed on grass, and "intermediate feeders" which choose their diet from the whole range of available plant material. Cattle, sheep, goats, deer and antelopes are ruminants; they digest food in two steps, chewing and swallowing in the normal way, and then regurgitating the semidigested cud to chew it again and thus extract the maximum possible food value.
The dietary needs of these animals is mostly met by eating grass. Grasses grow from the base of the leaf-blade, enabling it to thrive even when heavily grazed or cut.In many climates grass growth is seasonal, for example in the temperate summer or tropical rainy season, so some areas of the crop are set aside to be cut and preserved, either as hay (dried grass), or as silage (fermented grass). Other forage crops are also grown and many of these, as well as crop residues, can be ensiled to fill the gap in the nutritional needs of livestock in the lean season.
Extensively reared animals may subsist entirely on forage, but more intensively kept livestock will require energy and protein-rich foods in addition. Energy is mainly derived from cereals and cereal by-products, fats and oils and sugar-rich foods, while protein may come from fish or meat meal, milk products, legumes and other plant foods, often the by-products of vegetable oil extraction.
Pigs and poultry are non-ruminants and unable to digest the cellulose in grass and other forages, so they are fed entirely on cereals and other high-energy foodstuffs. The ingredients for the animals' rations can be grown on the farm or can be bought, in the form of pelleted or cubed, compound foodstuffs specially formulated for the different classes of livestock, their growth stages and their specific nutritional requirements. Vitamins and minerals are added to balance the diet. Farmed fish are usually fed pelleted food.
Breeding
The breeding of farm animals seldom occurs spontaneously but is managed by farmers with a view to encouraging traits seen as desirable. These include hardiness, fertility, docility, mothering abilities, fast growth rates, low feed consumption per unit of growth, better body proportions, higher yields, and better fibre qualities. Undesirable traits such as health defects and aggressiveness are selected against.Selective breeding has been responsible for large increases in productivity. For example, in 2007, a typical broiler chicken at eight weeks old was 4.8 times as heavy as a bird of similar age in 1957, while in the thirty years to 2007, the average milk yield of a dairy cow in the United States nearly doubled.
Animal health
Good husbandry, proper feeding, and hygiene are the main contributors to animal health on the farm, bringing economic benefits through maximised production. When, despite these precautions, animals still become sick, they are treated with veterinary medicines, by the farmer and the veterinarian. In the European Union, when farmers treat their own animals, they are required to follow the guidelines for treatment and to record the treatments given. Animals are susceptible to a number of diseases and conditions that may affect their health. Some, like classical swine fever and scrapie are specific to one type of stock, while others, like foot-and-mouth disease affect all cloven-hoofed animals. Animals living under intensive conditions are prone to internal and external parasites; increasing numbers of sea lice are affecting farmed salmon in Scotland. Reducing the parasite burdens of livestock results in increased productivity and profitability.Where the condition is serious, governments impose regulations on import and export, on the movement of stock, quarantine restrictions and the reporting of suspected cases. Vaccines are available against certain diseases, and antibiotics are widely used where appropriate. At one time, antibiotics were routinely added to certain compound foodstuffs to promote growth, but this practice is now frowned on in many countries because of the risk that it may lead to antimicrobial resistance in livestock and in humans.
Governments are concerned with zoonoses, diseases that humans may acquire from animals. Wild animal populations may harbour diseases that can affect domestic animals which may acquire them as a result of insufficient biosecurity. An outbreak of Nipah virus in Malaysia in 1999 was traced back to pigs becoming ill after contact with fruit-eating flying foxes, their faeces and urine. The pigs in turn passed the infection to humans. Avian flu H5N1 is present in wild bird populations and can be carried large distances by migrating birds. This virus is easily transmissible to domestic poultry, and to humans living in close proximity with them. Other infectious diseases affecting wild animals, farm animals and humans include rabies, leptospirosis, brucellosis, tuberculosis and trichinosis.
Range of species
There is no single universally agreed definition of which species are livestock. Widely agreed types of livestock include cattle for beef and dairy, sheep, goats, pigs, and poultry. Various other species are sometimes considered livestock, such as horses, while poultry birds are sometimes excluded. In some parts of the world, livestock includes species such as buffalo, and the South American camelids, the alpaca and llama. Some authorities use much broader definitions to include fish in aquaculture, micro-livestock such as rabbits and rodents like guinea pigs, as well as insects from honey bees to crickets raised for human consumption.
Products
Animals are raised for a wide variety of products, principally meat, wool, milk, and eggs, but also including tallow, isinglass and rennet. Animals are also kept for more specialised purposes, such as to produce vaccines and antiserum (containing antibodies) for medical use. Where fodder or other crops are grown alongside animals, manure can serve as a fertiliser, returning minerals and organic matter to the soil in a semi-closed organic system.
Branches
Dairy
Although all mammals produce milk to nourish their young, the cow is predominantly used throughout the world to produce milk and milk products for human consumption. Other animals used to a lesser extent for this purpose include sheep, goats, camels, buffaloes, yaks, reindeer, horses and donkeys.All these animals have been domesticated over the centuries, being bred for such desirable characteristics as fecundity, productivity, docility and the ability to thrive under the prevailing conditions. Whereas in the past cattle had multiple functions, modern dairy cow breeding has resulted in specialised Holstein Friesian-type animals that produce large quantities of milk economically. Artificial insemination is widely available to allow farmers to select for the particular traits that suit their circumstances.Whereas in the past cows were kept in small herds on family farms, grazing pastures and being fed hay in winter, nowadays there is a trend towards larger herds, more intensive systems, the feeding of silage and "zero grazing", a system where grass is cut and brought to the cow, which is housed year-round.In many communities, milk production is only part of the purpose of keeping an animal which may also be used as a beast of burden or to draw a plough, or for the production of fibre, meat and leather, with the dung being used for fuel or for the improvement of soil fertility. Sheep and goats may be favoured for dairy production in climates and conditions that do not suit dairy cows.
Meat
Meat, mainly from farmed animals, is a major source of dietary protein and essential nutrients around the world, averaging about 8% of man's energy intake. The actual types eaten depend on local preferences, availability, cost and other factors, with cattle, sheep, pigs and goats being the main species involved. Cattle generally produce a single offspring annually which takes more than a year to mature; sheep and goats often have twins and these are ready for slaughter in less than a year; pigs are more prolific, producing more than one litter of up to about 11 piglets each year. Horses, donkeys, deer, buffalo, llamas, alpacas, guanacos and vicunas are farmed for meat in various regions. Some desirable traits of animals raised for meat include fecundity, hardiness, fast growth rate, ease of management and high food conversion efficiency. About half of the world's meat is produced from animals grazing on open ranges or on enclosed pastures, the other half being produced intensively in various factory-farming systems; these are mostly cows, pigs or poultry, and often reared indoors, typically at high densities.
Poultry
Poultry, kept for their eggs and for their meat, include chickens, turkeys, geese and ducks. The great majority of laying birds used for egg production are chickens. Methods for keeping layers range from free-range systems, where the birds can roam as they will but are housed at night for their own protection, through semi-intensive systems where they are housed in barns and have perches, litter and some freedom of movement, to intensive systems where they are kept in cages. The battery cages are arranged in long rows in multiple tiers, with external feeders, drinkers, and egg collection facilities. This is the most labour saving and economical method of egg production but has been criticised on animal welfare grounds as the birds are unable to exhibit their normal behaviours.In the developed world, the majority of the poultry reared for meat is raised indoors in big sheds, with automated equipment under environmentally controlled conditions. Chickens raised in this way are known as broilers, and genetic improvements have meant that they can be grown to slaughter weight within six or seven weeks of hatching. Newly hatched chicks are restricted to a small area and given supplementary heating. Litter on the floor absorbs the droppings and the area occupied is expanded as they grow. Feed and water is supplied automatically and the lighting is controlled. The birds may be harvested on several occasions or the whole shed may be cleared at one time.A similar rearing system is usually used for turkeys, which are less hardy than chickens, but they take longer to grow and are often moved on to separate fattening units to finish. Ducks are particularly popular in Asia and Australia and can be killed at seven weeks under commercial conditions.
Aquaculture
Aquaculture has been defined as "the farming of aquatic organisms including fish, molluscs, crustaceans and aquatic plants and implies some form of intervention in the rearing process to enhance production, such as regular stocking, feeding, protection from predators, etc. Farming also implies individual or corporate ownership of the stock being cultivated." In practice it can take place in the sea or in freshwater, and be extensive or intensive. Whole bays, lakes or ponds may be devoted to aquaculture, or the farmed animal may be retained in cages (fish), artificial reefs, racks or strings (shellfish). Fish and prawns can be cultivated in rice paddies, either arriving naturally or being introduced, and both crops can be harvested together.Fish hatcheries provide larval and juvenile fish, crustaceans and shellfish, for use in aquaculture systems. When large enough these are transferred to growing-on tanks and sold to fish farms to reach harvest size. Some species that are commonly raised in hatcheries include shrimps, prawns, salmon, tilapia, oysters and scallops. Similar facilities can be used to raise species with conservation needs to be released into the wild, or game fish for restocking waterways. Important aspects of husbandry at these early stages include selection of breeding stock, control of water quality and nutrition. In the wild, there is a massive amount of mortality at the nursery stage; farmers seek to minimise this while at the same time maximising growth rates.
Insects
Bees have been kept in hives since at least the First Dynasty of Egypt, five thousand years ago, and man had been harvesting honey from the wild long before that. Fixed comb hives are used in many parts of the world and are made from any locally available material. In more advanced economies, where modern strains of domestic bee have been selected for docility and productiveness, various designs of hive are used which enable the combs to be removed for processing and extraction of honey. Quite apart from the honey and wax they produce, honey bees are important pollinators of crops and wild plants, and in many places hives are transported around the countryside to assist in pollination.Sericulture, the rearing of silkworms, was first adopted by the Chinese during the Shang dynasty. The only species farmed commercially is the domesticated silkmoth. When it spins its cocoon, each larva produces an exceedingly long, slender thread of silk. The larvae feed on mulberry leaves and in Europe, only one generation is normally raised each year as this is a deciduous tree. In China, Korea and Japan however, two generations are normal, and in the tropics, multiple generations are expected. Most production of silk occurs in the Far East, with a synthetic diet being used to rear the silkworms in Japan.Insects form part of the human diet in many cultures. In Thailand, crickets are farmed for this purpose in the north of the country, and palm weevil larvae in the south. The crickets are kept in pens, boxes or drawers and fed on commercial pelleted poultry food, while the palm weevil larvae live on cabbage palm and sago palm trees, which limits their production to areas where these trees grow. Another delicacy of this region is the bamboo caterpillar, and the best rearing and harvesting techniques in semi-natural habitats are being studied.
Effects
Environmental impact
Animal husbandry has a significant impact on the world environment. Both production and consumption of animal products have increased rapidly. Over the past 50 years, meat production has trebled, whereas the production of dairy products doubled and that of eggs almost increased fourfold. Meanwhile, meat consumption has also nearly doubled worldwide. Within that increased overall consumption of meat, developing countries had a surge in meat consumption particularly in the portion of monogastric livestock. Being a part of the animal–industrial complex, animal agriculture is the primary driver of climate change, ocean acidification, biodiversity loss, and of the crossing of almost every other planetary boundary, in addition to killing more than 60 billion non-human land animals annually. It is responsible for somewhere between 20 and 33% of the fresh water usage in the world, and livestock, and the production of feed for them, occupy about a third of the Earth's ice-free land. Livestock production is a contributing factor in species extinction, desertification, and habitat destruction. Animal agriculture contributes to species extinction in various ways and is the primary driver of the Holocene extinction. It is estimated that 70% of the agricultural land and 30% of the total land surface of the Earth is involved either directly or indirectly in animal agriculture. Habitat is destroyed by clearing forests and converting land to grow feed crops and for animal grazing, while predators and herbivores are frequently targeted and hunted because of a perceived threat to livestock profits; for example, animal husbandry is responsible for up to 91% of the deforestation in the Amazon region. In addition, livestock produce greenhouse gases. Cows produce some 570 million cubic metres of methane per day, that accounts for 35 to 40% of the overall methane emissions of the planet. Further, livestock production is responsible for 65% of all human-related emissions of nitrous oxide.As a result, ways of mitigating animal husbandry's environmental impact are being studied. Strategies include using biogas from manure, genetic selection, immunization, rumen defaunation, outcompetition of methanogenic archaea with acetogens, introduction of methanotrophic bacteria into the rumen, diet modification and grazing management, among others. It has been suggested that beef products finished in feedlot are less resource intensive than those pastured beef products. A diet change (with Asparagopsis taxiformis) allowed for a reduction of up to 99% of methane production in an experimental study with three ruminants.
Animal welfare
Since the 18th century, people have become increasingly concerned about the welfare of farm animals. Possible measures of welfare include longevity, behavior, physiology, reproduction, freedom from disease, and freedom from immunosuppression. Standards and laws for animal welfare have been created worldwide, broadly in line with the most widely held position in the western world, a form of utilitarianism: that it is morally acceptable for humans to use non-human animals, provided that no unnecessary suffering is caused, and that the benefits to humans outweigh the costs to the livestock. An opposing view is that animals have rights, should not be regarded as property, are not necessary to use, and should never be used by humans. Live export of animals has risen to meet increased global demand for livestock such as in the Middle East. Animal rights activists have objected to long-distance transport of animals; one result was the banning of live exports from New Zealand in 2003.David Nibert, professor of sociology at Wittenberg University, posits that, based on contemporary scholarship by ethologists and biologists about the sentience and intelligence of other animals, "we can assume that, for the most part, the other animals' experience of capture, enslavement, use, and slaying was one of suffering and violence." Much of this involved direct physical violence, but also structural violence as their systemic oppression and enslavement "resulted in their inability to meet their basic needs, the loss of self-determination, and the loss of opportunity to live in a natural way." He says that the remains of domesticated animals from thousands of years ago found during archeological excavations revealed numerous bone pathologies, which provide evidence of extreme suffering:
Excavations from 8500 BCE revealed bone deformities in enslaved goats and cows and provided "some indication of stress, presumably due to the conditions in which these early domestic animals were kept." Remains of sheep and goats from the early Bronze Age show a marked decrease in bone thickness, reflecting calcium deficiencies "resulting from the combined effects of poor nutrition and intensive milking."
In culture
Since the 18th century, the farmer John Bull has represented English national identity, first in John Arbuthnot's political satires, and soon afterwards in cartoons by James Gillray and others including John Tenniel. He likes food, beer, dogs, horses, and country sports; he is practical and down to earth, and anti-intellectual.Farm animals are widespread in books and songs for children; the reality of animal husbandry is often distorted, softened, or idealized, giving children an almost entirely fictitious account of farm life. The books often depict happy animals free to roam in attractive countryside, a picture completely at odds with the realities of the impersonal, mechanized activities involved in modern intensive farming.
Pigs, for example, appear in several of Beatrix Potter's "little books", as Piglet in A.A. Milne's Winnie the Pooh stories, and somewhat more darkly (with a hint of animals going to slaughter) as Babe in Dick King-Smith's The Sheep-Pig, and as Wilbur in E. B. White's Charlotte's Web. Pigs tend to be "bearers of cheerfulness, good humour and innocence". Many of these books are completely anthropomorphic, dressing farm animals in clothes and having them walk on two legs, live in houses, and perform human activities. The children's song "Old MacDonald Had a Farm" describes a farmer named MacDonald and the various animals he keeps, celebrating the noises they each make.Many urban children experience animal husbandry for the first time at a petting farm; in Britain, some five million people a year visit a farm of some kind. This presents some risk of infection, especially if children handle animals and then fail to wash their hands; a strain of E. coli infected 93 people who had visited a British interactive farm in an outbreak in 2009. Historic farms such as those in the United States offer farmstays and "a carefully curated version of farming to those willing to pay for it", sometimes giving visitors a romanticised image of a pastoral idyll from an unspecified time in the pre-industrial past.
See also
Animal–industrial complex
Agribusiness
Fishery
Food vs. feed
Industrial agriculture
Wildlife farming
Zootechnics
Notes
References
Citations
Sources
External links
Animal husbandry practices – National Animal Interest Alliance |
corporate farming | Corporate farming is the practice of large-scale agriculture on farms owned or greatly influenced by large companies. This includes corporate ownership of farms and selling of agricultural products, as well as the roles of these companies in influencing agricultural education, research, and public policy through funding initiatives and lobbying efforts.
The definition and effects of corporate farming on agriculture are widely debated, though sources that describe large businesses in agriculture as "corporate farms" may portray them negatively.
Definitions and usage
The varied and fluid meanings of "corporate farming" have resulted in conflicting definitions of the term, with implications in particular for legal definitions.
Legal definitions
Most legal definitions of corporate farming in the United States pertain to tax laws, anti–corporate farming laws, and census data collection. These definitions mostly reference farm income, indicating farms over a certain threshold as corporate farms, as well as ownership of the farm, specifically targeting farms that do not pass ownership through family lines.
Common definitions
In public discourse, the term "corporate farming" lacks a firmly established definition and is variously applied. However, several features of the term's usage frequently arise:
It is largely used as a pejorative with strong negative connotations.
It most commonly refers to corporations that are large-scale farms, market agricultural technologies (in particular pesticides, fertilizers, and GMO's), have significant economic and political influence, or some combination of the three.
It is usually used in opposition to family farms and new agricultural movements, such as sustainable agriculture and the local food movement.
Family farms
"Family farm" and "corporate farm" are often defined as mutually exclusive terms, with the two having different interests. This mostly stems from the widespread assumption that family farms are small farms while corporate farms are large-scale operations. While it is true that the majority of small farms are family owned, many large farms are also family businesses, including some of the largest farms in the US.According to Food and Agricultural Organization of the United Nations (FAO), a family farm "...is a means of organizing agricultural, forestry, fisheries, pastoral and aquaculture production which is managed and operated by a family and predominantly reliant on family labour, both women’s and men’s. The family and the farm are linked, coevolve and combine economic, environmental, reproductive, social and cultural functions.”Additionally, there are large economic and legal incentives for family farmers to incorporate their businesses.
Contract farming
Farming contracts are agreements between a farmer and a buyer that stipulates what the farmer will grow and how much they will grow usually in return for guaranteed purchase of the product or financial support in purchase of inputs (e.g. feed for livestock growers). In most instances of contract farming, the farm is family owned while the buyer is a larger corporation. This makes it difficult to distinguish the contract farmers from "corporate farms," because they are family farms but with significant corporate influence. This subtle distinction left a loop-hole in many state laws that prohibited corporate farming, effectively allowing corporations to farm in these states as long as they contracted with local farm owners.
Non-farm entities
Many people also choose to include non-farming entities in their definitions of corporate farming. Beyond just the farm contractors mentioned above, these types of companies commonly considered part of the term include Cargill, Monsanto, and DuPont Pioneer among others. These corporations do not have production farms, meaning they do not produce a significant amount of farm products. However, their role in producing and selling agricultural supplies and their purchase and processing of farm products often leads to them being grouped with corporate farms. While this is technically incorrect, it is widely considered substantively accurate because including these companies in the term "corporate farming" is necessary to describe their real influence over agriculture.
Arguments against corporate farming
Family farms maintain traditions including environmental stewardship and taking longer views than companies seeking profits. Family farmers may have greater knowledge about soil and crop types, terrains, weather and other features specific to particular local areas of land can be passed from parent to child over generations, which would be harder for corporate managers to grasp.
North America
In Canada, 17.4 percent of farms are owned by family corporations and 2.4 percent by non-family corporations. In Canada (as in some other jurisdictions) conversion of a sole proprietorship family farm to a family corporation can have tax planning benefits, and in some cases, the difference in combined provincial and federal taxation rates is substantial. Also, for farm families with significant off-farm income, incorporating the farm can provide some shelter from high personal income tax rates. Another important consideration can be some protection of the corporate shareholders from liability. Incorporating a family farm can also be useful as a succession tool, among other reasons because it can maintain a family farm as a viable operation where subdivision of the farm into smaller operations among heirs might result in farm sizes too small to be viable.The 2012 US Census of Agriculture indicates that 5.06 percent of US farms are corporate farms. These include family corporations (4.51 percent) and non-family corporations (0.55 percent). Of the family farm corporations, 98 percent are small corporations, with 10 or fewer stockholders. Of the non-family farm corporations, 90 percent are small corporations, with 10 or fewer stockholders. Non-family corporate farms account for 1.36 percent of US farmland area. Family farms (including family corporate farms) account for 96.7 percent of US farms and 89 percent of US farmland area; a USDA study estimated that family farms accounted for 85 percent of US gross farm income in 2011. Other farmland in the US is accounted for by several other categories, including single proprietorships where the owner is not the farm operator, non-family partnerships, estates, trusts, cooperatives, collectives, institutional, research, experimental and American Indian Reservation farms.
In the US, the average size of a non-family corporate farm is 1078 acres, i.e. smaller than the average family corporate farm (1249 acres) and smaller than the average partnership farm (1131 acres).
US farm laws
To date, nine US states have enacted laws that restrict or prohibit corporate farming. The first of these laws were enacted in the 1930s by Kansas and North Dakota respectively. In the 1970s, similar laws were passed in Iowa, Minnesota, Missouri, South Dakota and Wisconsin. In 1982, after failure to pass an anti–corporate farming law, the citizens of Nebraska enacted by initiative a similar amendment into their state constitution. The citizens of South Dakota similarly amended their state constitution in 1998.All nine laws have similar content. They all restrict corporate ability to own and operate on farmland. They all outline exceptions for specific types of corporations. Generally, family farm corporations are exempted, although certain conditions may have to be fulfilled for such exemption (e.g. one or more of: shareholders within a specified degree of kinship owning a majority of voting stock, no shareholders other than natural persons, limited number of shareholders, at least one family member residing on the farm). However, the laws vary significantly in how they define a corporate farm, and in the specific restrictions. Definitions of a farm can include any and all farm operations, or be dependent on the source of income, as in Iowa, where 60 percent of income must come from farm products. Additionally, these laws can target a corporation's use of the land, meaning that companies can own but not farm the land, or they may outright prohibit corporations from buying and owning farmland. The precise wording of these laws has significant impact on how corporations can participate in agriculture in these states with the ultimate goal of protecting and empowering the family farm.
Europe
Family farms across Europe are heavily protected by EU regulations, which have been driven in particular by French farmers and the French custom splitting land inheritance between children to produce many very small family farms. In regions such as East Anglia, UK, some agribusiness is practiced through company ownership, but most large UK land estates are still owned by wealthy families such as traditional aristocrats, as encouraged by favourable inheritance tax rules.
Eurasia
Most farming in the Soviet Union and its Eastern Bloc satellite states was collectivized. After the dissolution of those states via the revolutions of 1989 and the dissolution of the Soviet Union, decades of decollectivization and land reform have occurred, with the details varying substantially by country.
Africa
Corporate farming has begun to take hold in some African countries, where listed companies such as Zambeef, Zambia are operated by MBAs as large businesses. In some cases, this has caused debates about land ownership where shares have been bought by international investors, especially from China.
Middle East
Some oil-rich middle east countries operate corporate farming including large-scale irrigation of desert lands for cropping, sometimes through partially or fully state-owned companies, especially with regards to water resource management.
See also
External links
"Family farming is a lifestyle" 2014 - International Year of Family Farming – European Economic and Social Committee
== References == |
environmental impact of fracking in the united states | Environmental impact of fracking in the United States has been an issue of public concern, and includes the contamination of ground and surface water, methane emissions, air pollution, migration of gases and fracking chemicals and radionuclides to the surface, the potential mishandling of solid waste, drill cuttings, increased seismicity and associated effects on human and ecosystem health. Research has determined that human health is affected. A number of instances with groundwater contamination have been documented due to well casing failures and illegal disposal practices, including confirmation of chemical, physical, and psychosocial hazards such as pregnancy and birth outcomes, migraine headaches, chronic rhinosinusitis, severe fatigue, asthma exacerbations, and psychological stress. While opponents of water safety regulation claim fracking has never caused any drinking water contamination, adherence to regulation and safety procedures is required to avoid further negative impacts.As early as 1987, researchers at the United States Environmental Protection Agency (EPA) expressed concern that fracking might contaminate groundwater. With the growth of fracking in the United States in the following years, concern grew. "Public exposure to the many chemicals involved in energy development is expected to increase over the next few years, with uncertain consequences" wrote science writer Valerie Brown in 2007. It wasn't until 2010 that Congress asked the EPA to conduct a full study of the environmental impact of fracking. The study is ongoing, but the EPA released a progress report in December 2012 and released a final draft assessment report for peer review and comment in June 2015.
Air quality and methane emissions
Methane emissions from wells raise global warming concerns. There is a 2,500 square-mile methane plume hovering over the Four Corners area of the western US. The magnitude of the plume was such that NASA researcher Christian Frankenberg reported to the press that, "We couldn't be sure that the signal was real." According to NASA: "The study's lead author, Eric Kort of the University of Michigan, Ann Arbor, noted the study period predates the widespread use of fracking near the hot spot. This indicates the methane emissions should not be attributed to fracking but instead to leaks in natural gas production and processing equipment in New Mexico's San Juan Basin, which is the most active coalbed methane production area in the country."Other concerns are related to emissions from the fracking chemicals and equipment such as volatile organic compound (VOC) and ozone. In 2008, ozone concentrations in ambient air near drilling sites in Sublette County, Wyoming were frequently above the National Ambient Air Quality Standards (NAAQS) of 75 ppb and have been recorded as high as 125 ppb. In DISH, Texas, elevated levels of disulfides, benzene, xylenes and naphthalene have been detected in the air, emitted from compressor stations. In Garfield County, Colorado, an area with a high concentration of drilling rigs, VOC emissions increased 30% between 2004 and 2006.Researchers from the University of Michigan analyzed the emissions produced from the fracking equipment at the Marcellus Shale and Eagle Ford Shale plays, and concluded that hydraulic pumps accounted for about 83% of the total emissions in the fracking fleet. NOx emission ranged between 3,600 and 5,600 lb/job, HC 232–289 lb/job, CO 859–1416 lb/job, and PM 184–310 lb/job. If the fuel efficiencies of the fracking pumps are improved, the emissions can be reduced.On April 17, 2012, the EPA issued cost-effective regulations, required by the Clean Air Act, which include the first federal air standards for natural gas wells that are hydraulically fractured. The final rules are expected to yield a nearly 95% reduction in VOC emissions from more than 11,000 new hydraulically fractured gas wells each year. This reduction would be accomplished primarily through capturing natural gas that escapes into the air, and making it available for sale. The rules would also reduce air toxins, which are known or suspected of causing cancer and other serious health effects, and emissions of methane, a potent greenhouse gas.A study published in the Proceedings of the National Academy of Sciences in April 2014 "identified a significant regional flux of methane over a large area of shale gas wells in southwestern Pennsylvania in the Marcellus formation and further identified several pads with high methane emissions. These shale gas pads were identified as in the drilling process, a preproduction stage not previously associated with high methane emissions." The study found that "Large emissions averaging 34 g CH4/s per well were observed from seven well pads determined to be in the drilling phase, 2 to 3 orders of magnitude greater than US Environmental Protection Agency estimates for this operational phase. The emissions from these well pads, representing ~1% of the total number of wells, account for 4–30% of the observed regional flux. More work is needed to determine all of the sources of methane emissions from natural gas production, to ascertain why these emissions occur and to evaluate their climate and atmospheric chemistry impacts."A two-day airborne survey of fracking sites in southwest Pennsylvania revealed drilling operations releasing plumes of methane 100 to 1,000 times the rate the EPA expects from that stage of drilling.In 2019, Howarth concluded that rising shale-gas production in North America has contributed significantly to the recent increase in global atmospheric methane. The ideas and perspectives piece from Howarth is controversial with a critical comment from Lewan (2020) and at odds with other papers including a 2019 review paper on atmospheric methane (Turner et al., PNAS 2019) and two earlier papers using stable isotopes (Schaefer et al., Science 2016; Schwietzke et al., Nature 2016).
Water issues
2015 EPA Report on Spills
In May 2015, the EPA released a report reviewing the spill data from various state and industry sources for data about spills related to hydraulic fracturing. Of the total reports reviewed in the study 1% (457) were determined to be related to hydraulic fracturing, while 66% were unrelated and 33% had insufficient data reported to determine if the spill was associated to hydraulic fracturing. In 324 incidents the spilled fluids were reported to reach categorized environmental receptors: Surface Water 67%, Soil 64%, and Ground Water 48%.
Other key spill figures from the report:
Median spill volume 730 gallons
The highest number and volume of spills from flowback/produced water
Total fluid spilled 2,300,000 gallons
Fluid recovered 480,000 gallons
Fluid unrecovered 1,600,000 gallons
Fluid unknown (recovery not reported) 250,000 gallons
The largest numbers of spills were caused by human error 150 (33%); while the largest volume of spilled fluids was from failure of containers 1,500,000 gal (64%).This report was cited in the full hydraulic fracturing water report now open for peer review though not directly addressed in the contents of the EPA spill data report. Several times, associations between hydraulic fracturing, causes of spills, and response to spills were unknown or indeterminate because of missing or unreported data. This highlights the need for more complete reporting and standardization of reporting for improved tracking to better guide implementation of environmental safety practices particularly where the impact is likely to impact key health determinants like water quality.
Water usage
Hydraulic fracturing uses between 1.2 and 3.5 million US gallons (4,500 and 13,200 m3) of water per well, with large projects using up to 5 million US gallons (19,000 m3). Additional water is used when wells are refractured. An average well requires 3 to 8 million US gallons (11,000 to 30,000 m3) of water over its lifetime. Back in 2008 and 2009 at the beginning of the shale boom in Pennsylvania, hydraulic fracturing accounted for 650 million US gallons per year (2,500,000 m3/a) (less than 0.8%) of annual water use in the area overlying the Marcellus Shale. The annual number of well permits, however, increased by a factor of five and the number of well starts increased by a factor of over 17 from 2008 to 2011.According to Environment America, a federation of state-based, citizen-funded environmental advocacy organizations, there are concerns for farmers competing with oil and gas for water. A report by Ceres questions whether the growth of hydraulic fracturing is sustainable in Texas and Colorado as 92% of Colorado wells were in extremely high water stress regions (that means regions where more than 80% of the available water is already allocated for agricultural, industrial and municipal water use) and 51% percent of the Texas wells were in high or extremely high water stress regions. In Barnhart, Texas the aquifer supplying the local community ran dry because of intensive water utilization for hydraulic fracturing. In 2013, the Railroad Commission of Texas adopted new hydraulic fracturing water recycling rules intended to encourage Texas hydraulic fracturing operators to conserve water used in the hydraulic fracturing process.Consequences for agriculture have already been observed in North America. In some regions of the US that are vulnerable to droughts, farmers are now competing with fracking industrials for the use of water resources. In the Barnett Shale region, in Texas and New Mexico, drinking water wells have dried up due to fracking's withdrawal of water, and water has been taken from an aquifer used for residential and agricultural use. Farmers have seen their wells go dry in Texas and New Mexico as a result of fracking's pressure on water resources, for instance in Carlsbad, New Mexico. Agricultural communities have already seen water prices rising because of that problem. In the North Water Conservation District in Colorado was organized an auction to allocate water and the prices rose from $22/acre-foot in 2010 to $28 in the beginning of 2012.
Injected fluid
Hydraulic fracturing fluids include proppants, various chemicals, and sometimes radionuclide tracers. While many are common and generally harmless, some additives used in the United States are known carcinogens. Out of 2,500 hydraulic fracturing products, more than 650 contained known or possible human carcinogens regulated under the Safe Drinking Water Act or listed as hazardous air pollutants". Between 2005 and 2009, 279 products had at least one component listed as "proprietary" or "trade secret" on their Occupational Safety and Health Administration (OSHA) required safety data sheet (SDS). In many instances, companies who bought products off the shelf did not know the ingredients. Without knowing the identity of the proprietary components, regulators cannot test for their presence. This prevents government regulators from establishing baseline levels of the substances prior to hydraulic fracturing and documenting changes in these levels, thereby making it more difficult to prove that hydraulic fracturing is contaminating the environment with these substances.The Ground Water Protection Council launched FracFocus.org, an online voluntary disclosure database for hydraulic fracturing fluids funded by oil and gas trade groups and the United States Department of Energy (DOE). The site has been met with some scepticism relating to proprietary information that is not included. Some states have mandated fluid disclosure and incorporated FracFocus as the tool for disclosure.
Groundwater contamination
In-depth research to determine a relation between fracking and groundwater contamination is sparse, but evidence suggests that fracking has contributed to groundwater contamination due to the chemicals used in the procedure of shale drilling; however, since thousands of feet of dirt and rock separate natural gas deposits and groundwater supplies, and other contaminating agents could also contribute, it is difficult to determine an absolute relation between fracking and groundwater contamination.In 2009, state regulators from across the country stated that they had seen no evidence of hydraulic fracturing contaminating water in their respective jurisdictions. In May 2011 the EPA Administrator Lisa P. Jackson testified in a Senate Hearing Committee stating that the EPA had never made a definitive determination of contamination where the hydraulic fracturing process itself has contaminated water. However, by 2013, Dr. Robin Ikeda, Deputy Director of Noncommunicable Diseases, Injury and Environmental Health at the CDC testified to congress that EPA had documented contamination at several sites.
Incidents of contamination
As early as 1987, an EPA report was published that indicated fracture fluid invasion into James Parson's water well in Jackson County, West Virginia. The well, drilled by Kaiser Exploration and Mining Company, was found to have induced fractures that created a pathway to allow fracture fluid to contaminate the groundwater from which Mr. Parson's well was producing. Directed by Congress, the EPA announced in March 2010 that it would examine claims of water pollution related to hydraulic fracturing. According to former EPA employees, the EPA at that time planned to call for a moratorium on fracking while the study was being conducted, but the government removed that recommendation from the letter sent to officials.
In 2006, over 7 million cubic feet (200,000 m3) of methane were released from a blown gas well in Clark, Wyoming and nearby groundwater was found to be contaminated with hydrocarbon compounds and benzene particularly.
An investigation was initiated after a Pennsylvania water well exploded on New Year's Day in 2009. The state investigation revealed that Cabot Oil & Gas Company "had allowed combustible gas to escape into the region's groundwater supplies." Arsenic, barium, DEHP, glycol compounds, manganese, phenol, methane, and sodium were found in unacceptable levels in the wells. In April 2010, the state of Pennsylvania banned Cabot Oil & Gas Corp. from further drilling in the entire state until it plugs wells believed to be the source of contamination of the drinking water of 14 homes in Dimock Township, Pennsylvania. Cabot Oil & Gas was also required to financially compensate residents and provide alternative sources of water until mitigation systems were installed in affected wells. The company denies, however, that any "of the issues in Dimock have anything to do with hydraulic fracturing". In May 2012 the EPA reported that their most recent "set of sampling did not show levels of contaminants that would give the EPA reason to take further action." Methane was found only in one well. Cabot has held that the methane was preexisting, but state regulators have cited chemical fingerprinting as proof that it was from Cabot's hydraulic fracturing activities. The EPA plans to re-sample four wells where previous data by the company and the state showed levels of contaminants.
Complaints about water quality from residents near a gas field in Pavillion, Wyoming prompted an EPA groundwater investigation. An EPA draft report dated December 8, 2011 found that contaminants in surface water near pits indicated were a source of contamination, and by the time the report was issued the company had already started to remediate the pits. The report also suggested that the groundwater contained "compounds likely associated with gas production practices, including hydraulic fracturing... Alternative explanations were carefully considered for individual sets of data. However, when considered together with other lines of evidence, the data indicates likely impact to ground water that can be explained by hydraulic fracturing." The Agency for Toxic Substances and Disease Registry recommended that owners of tainted wells use alternate sources of water for drinking and cooking, and ventilation when showering. Encana is funding the alternate water supplies. State and industry figures rejected the EPA's findings. In 2012 the U.S. Geological Survey, tasked with further sampling of the EPA wells, tested one of two EPA monitoring wells near Pavillion (the other well the USGS considered unsuitable for collecting water samples) and found evidence of methane, ethane, diesel compounds and phenol, In June 2013, the EPA announced that it was closing its investigation at Pavilion, and would not finish or seek peer review of its preliminary 2011 study. Further investigation will be done by the state of Wyoming.
Further, it has been reported that the actual labs being used to test the water samples for contamination are not geared to test for the chemicals used in hydraulic fracturing. The labs were formerly used for the Superfund program and for cleaning up Superfund sites they work well but they are not geared for testing for fracking chemicals so tests from these labs are suspect.
Flowback and produced water
Flowback is the portion of the injected fracturing fluid that flows back to the surface, along with oil, gas, and brine, during well commissioning, a process which typically takes a week, though durations vary. An estimated 90% of flowback in the United States is disposed of into deep EPA-licensed Class II disposal wells, with the remaining less than 10% reused, evaporated, used for irrigation, or discharged to surface streams under an NPDES permit. Of nine oil and gas-producing states studied in 2012, underground injection disposal was by far the predominant method in all but Pennsylvania where were only six active waste disposal wells. In California, Virginia, and Ohio there have been instances of illegal dumping of flowback, a precursor to possible contamination of local ground and surface water reservoirs. Discharging oil and gas produced water to surface streams without an NPDES permit is a federal crime. Discharges through water treatment works must comply with the federal Clean Water Act and the terms of their NPDES permits, but the EPA noted that most water treatment works are not set up to treat flowback.In Pennsylvania, oil and gas produced water had for many years been accepted by licensed water treatment works for treatment and discharge, but the volume expanded greatly with the proliferation of Marcellus Shale wells after 2000. In 2010 the Pennsylvania Department of Environmental Protection (DEP) limited surface water discharges from new treatment plants to 250 mg/L chloride; the chloride limitation was designed to also limit other contaminants such as radium. Existing water treatment plants were "grandfathered," and still allowed higher discharge concentrations, but oil and gas operators were prohibited to send wastewater to the grandfathered treatment plants.One Duke University study reported that "Marcellus [Shale] wells produce significantly less wastewater per unit gas recovered (~35%) compared to conventional natural gas wells." In Colorado the volume of wastewater discharged to surface streams increased from 2008 to 2011.
Surface water contamination
Hydraulic fracturing can affect surface water quality either through accidental spills at the wellsite, or by discharge of the flowback through existing water treatment works. Directed by Congress, the EPA announced in March 2010 that it would examine claims of water pollution related to hydraulic fracturing. Christopher Portier, director of the CDC's National Center for Environmental Health and the Agency for Toxic Substances and Disease Registry, argued that, in addition to the EPA's plans to investigate the impact of hydraulic fracturing on drinking water, additional studies should be carried out to determine whether wastewater from the wells can harm people or animals and vegetables they eat. A group of US doctors called for a moratorium on hydraulic fracturing in populated areas until such studies had been done.However, others point out exclusions and exemptions for hydraulic fracturing under United States federal law. Exemptions were made in the Clean Water Act, as part of the Energy Policy Act of 2005, also known as the "Halliburton Loophole." These exemptions included stormwater runoff from gas and oil construction activities which includes "oil and gas exploration, production, process, or treatment operations and transmission facilities" as part of the definition of construction activities. Amendments to the Safe Drinking Water Act involved the definition of underground injection. Underground injection related to hydraulic fracturing was exempted from the Clean Water Act, except if it uses diesel fuel.The growing of oil and natural gas drilling employing hydraulic fracturing technology is steady around different regions of the United States, but the maintenance of wastewater gathered after the drilling process containing hydraulic fracturing fluids is lagging behind. In Pennsylvania, the DEP reported that the resources to properly regulate wastewater-handling facilities were unavailable, inspecting facilities every 20 years rather than every 2 years as called for by regulation.The quantity of wastewater and the unpreparedness of sewage plants to treat wastewater, is an issue in Pennsylvania. The Associated Press has reported that starting in 2011, the DEP strongly resisted providing the AP and other news organizations with information about complaints related to drilling. When waste brine is discharged to surface waters through conventional wastewater treatment plants, the bromide in the brine usually is not captured. Although not a health hazard by itself, in western Pennsylvania some downstream drinking water treatment plants using the surface water experienced increases in brominated trihalomethanes in 2009 and 2010. Trihalomethanes, undesirable byproducts of the chlorination process, form when the chlorine combines with dissolved organic matter in the source water, to form the trihalomethane chloroform. Bromine can substitute for some chlorine, forming brominated trihalomethanes. Because bromine has a higher atomic weight than chlorine, the partial conversion to brominated trihalomethanes increases the concentration by weight of total trihalomethanes.
Radioactivity
Radioactivity associated with hydraulically fractured wells comes from two sources: naturally occurring radioactive material and radioactive tracers introduced into the wells. Flowback from oil and gas wells is usually disposed of deep underground in Class II injection wells, but in Pennsylvania, much of the wastewater from hydraulic fracturing operations is processed by public sewage treatment plants. Many sewage plants say that they are incapable of removing the radioactive components of this waste, which is often released into major rivers. Industry officials, though, claim that these levels are diluted enough that public health is not compromised.In 2011, the level of dissolved radium in hydraulic fracturing wastewater released upstream from drinking water intakes had been measured to be up to 18,035 pCi/L (667.3 Bq/L), and the gross alpha level measured to be up to 40,880 pCi/L (1,513 Bq/L). The New York Times reported that studies by the EPA and a confidential study by the drilling industry concluded that radioactivity in drilling waste cannot be fully diluted in rivers and other waterways. A recent Duke University study sampled water downstream from a Pennsylvania wastewater treatment facility from 2010 through Fall 2012 and found the creek sediment contained levels of radium 200 times background levels. The surface water had the same chemical signature as rocks in the Marcellus Shale formation. The facility denied processing Marcellus waste since 2011. In May 2013 the facility signed another agreement to not accept or discharge wastewater Marcellus Shale formations until it has installed technology to remove the radiation compounds, metals and salts. According to the Duke researches the 'waste treatment solids/sludge' have exceeded U.S. regulations for radium disposal to soil. The study by Duke University also found that radium has been "absorbed and accumulated on the sediments locally at the discharge".The New York Times noted that in 2011 the Pennsylvania DEP only made a "request — not a regulation" of gas companies to stop sending their flowback and waste water to public water treatment facilities. However, the DEP gave oil and gas operators 30 days to voluntarily comply, and they all did. Former Pennsylvania DEP Secretary John Hanger, who served under Gov. Ed Rendell, affirmed that municipal drinking water throughout the state is safe. "Every single drop that is coming out of the tap in Pennsylvania today meets the safe drinking water standard," Hanger said, but added that the environmentalists were accurate in stating that Pennsylvania water treatment plants were not equipped to treat hydraulic fracturing water. Current Pennsylvania DEP Secretary Michael Krancer serving under Gov. Tom Corbett has said it is "total fiction" that untreated wastewater is being discharged into the state's waterways, though it has been observed that Corbett received over a million dollars in gas industry contributions, more than all his competitors combined, during his election campaign. Unannounced inspections are not made by regulators: the companies report their own spills, and create their own remediation plans. A recent review of the state-approved plans found them to appear to be in violation of the law. Treatment plants are still not equipped to remove radioactive material and are not required to test for it. Despite this, in 2009 the Ridgway Borough's public sewage treatment plant, in Elk County, PA, facility was sent wastewater containing radium and other types of radiation at 275–780 times the drinking-water standard. The water being released from the plant was not tested for radiation levels. Part of the problem is that growth in waste produced by the industry has outpaced regulators and state resources. "Safe drinking water standards" have not yet been set for many of the substances known to be in hydrofracturing fluids or their radioactivity levels, and their levels are not included in public drinking water quality reports.Tests conducted in Pennsylvania in 2009 found "no evidence of elevated radiation levels" in waterways. At the time radiation concerns were not seen as a pressing issue. In 2011 The New York Times reported radium in wastewater from natural gas wells is released into Pennsylvania rivers, and compiled a map of these wells and their wastewater contamination levels, and stated that some EPA reports were never made public. The Times' reporting on the issue has come under some criticism. A 2012 study examining a number of hydraulic fracturing sites in Pennsylvania and Virginia by Pennsylvania State University, found that water that flows back from gas wells after hydraulic fracturing contains high levels of radium.Before 2011, flowback in Pennsylvania was processed by public wastewater plants, which were not equipped to remove radioactive material and were not required to test for it. Industry officials, though, claim that these levels are diluted enough that public health is not compromised. In 2010 the DEP limited surface water discharges from new treatment plants to 250 mg/L chloride. This limitation was designed to also limit other contaminants such as radium. Existing water treatment plants were allowed higher discharge concentrations. In April 2011, the DEP asked unconventional gas operators to voluntarily stop sending wastewater to the grandfathered treatment plants. The PADEP reported that the operators had complied.A 2013 Duke University study sampled water downstream from a Pennsylvania wastewater treatment facility from 2010 through 2012 and found that creek sediment contained levels of radium 200 times background levels. The surface water had the same chemical signature as rocks in the Marcellus Shale formation along with high levels of chloride. The facility denied processing Marcellus waste after 2011. In May 2013 the facility signed another agreement to not accept or discharge Marcellus wastewater until it installed technology to remove the radioactive materials, metals and salts.A 2012 study by researchers from the National Renewable Energy Laboratory, University of Colorado, and Colorado State University reported a reduction in the percentage of flowback treated through surface water discharge in Pennsylvania from 2008 through 2011. By late 2012, bromine concentrations had declined to previous levels in the Monongahela River, but remained high in the Allegheny.
Naturally occurring radioactive materials
The New York Times has reported radiation in hydraulic fracturing wastewater released into rivers in Pennsylvania. It collected data from more than 200 natural gas wells in Pennsylvania and has posted a map entitled Toxic Contamination from Natural Gas Wells in Pennsylvania. The Times stated "never-reported studies" by the United States Environmental Protection Agency and a "confidential study by the drilling industry" concluded that radioactivity in drilling waste cannot be fully diluted in rivers and other waterways. Despite this, as of early 2011 federal and state regulators did not require sewage treatment plants that accept drilling waste (which is mostly water) to test for radioactivity. In Pennsylvania, where the drilling boom began in 2008, most drinking-water intake plants downstream from sewage treatment plants have not tested for radioactivity since before 2006.The New York Times reporting has been criticized and one science writer has taken issue with one instance of the newspaper's presentation and explanation of its calculations regarding dilution, charging that a lack of context made the article's analysis uninformative.According to a Times report in February 2011, wastewater at 116 of 179 deep gas wells in Pennsylvania "contained high levels of radiation," but its effect on public drinking water supplies is unknown because water suppliers are required to conduct tests of radiation "only sporadically". The New York Post stated that the DEP reported that all samples it took from seven rivers in November and December 2010 "showed levels at or below the normal naturally occurring background levels of radioactivity", and "below the federal drinking water standard for Radium 226 and 228." However, samples taken by the state from at least one river, (the Monongahela, a source of drinking water for parts of Pittsburgh), were taken upstream from the sewage treatment plants accepting drilling waste water.
Radioactive tracers
Radioactive tracer isotopes are sometimes injected with hydraulic fracturing fluid to determine the injection profile and location of created fractures. Sand containing gamma-emitting tracer isotopes is used to trace and measure fractures. A 1995 study found that radioactive tracers were used in over 15% of stimulated oil and gas wells. In the United States, injection of radionuclides are licensed and regulated by the Nuclear Regulatory Commission (NRC). According to the NRC, some of the most commonly used tracers include antimony-124, bromine-82, iodine-125, iodine-131, iridium-192, and scandium-46. A 2003 publication by the International Atomic Energy Agency confirms the frequent use of most of the tracers above, and says that manganese-56, sodium-24, technetium-99m, silver-110m, argon-41, and xenon-133 are also used extensively because they are easily identified and measured. According to a 2013 meeting of researchers who examined low (never exceeding drinking water standards) but persistent detections of iodine-131 in a stream used for Philadelphia drinking water: "Workshop participants concluded that the likely source of 131-I in Philadelphia's source waters is residual 131-I excreted from patients following medical treatments," but suggested that other potential sources also be studied, including hydraulic fracturing.
Seismicity
Hydraulic fracturing routinely produces microseismic events much too small to be detected except by sensitive instruments. These microseismic events are often used to map the horizontal and vertical extent of the fracturing. However, a 2012 US Geological Survey study reported that a "remarkable" increase in the rate of M ≥ 3 earthquakes in the US midcontinent "is currently in progress", having started in 2001 and culminating in a 6-fold increase over 20th-century levels in 2011. The overall increase was tied to earthquake increases in a few specific areas: the Raton Basin of southern Colorado (site of coalbed methane activity), and gas-producing areas in central and southern Oklahoma, and central Arkansas. While analysis suggested that the increase is "almost certainly man-made", the United States Geological Survey (USGS) noted: "USGS's studies suggest that the actual hydraulic fracturing process is only very rarely the direct cause of felt earthquakes." The increased earthquakes were said to be most likely caused by increased injection of gas-well wastewater into disposal wells. The injection of waste water from oil and gas operations, including from hydraulic fracturing, into saltwater disposal wells may cause bigger low-magnitude tremors, being registered up to 3.3 (Mw).
Induced seismicity from hydraulic fracturing
Hydraulic fracturing routinely triggers microseismic events too small to be detected except with sensitive instruments. However, according to the US Geological Survey: "Reports of hydraulic fracturing causing earthquakes large enough to be felt at the surface are extremely rare, with only three occurrences reported as of late 2012, in Great Britain, Oklahoma, and Canada." Bill Ellsworth, a geoscientist with the U.S. Geological Survey, has said, however: "We don't see any connection between fracking and earthquakes of any concern to society." The National Research Council (part of the National Academy of Sciences) has also observed that hydraulic fracturing, when used in shale gas recovery, does not pose a serious risk of causing earthquakes that can be felt.
Induced seismicity from water disposal wells
Of greater concern are earthquakes associated with permitted Class II deep wastewater injection wells, many of which inject frac flowback and produced water from oil and gas wells.The USGS has reported earthquakes induced by disposal of produced water and hydraulic fracturing flowback into waste disposal wells in several locations.
In 2013, Researchers from Columbia University and the University of Oklahoma demonstrated that in the midwestern United States, some areas with increased human-induced seismicity are susceptible to additional earthquakes triggered by the seismic waves from remote earthquakes. They recommended increased seismic monitoring near fluid injection sites to determine which areas are vulnerable to remote triggering and when injection activity should be ceased.Geophysicist Cliff Frohlich researched seismic activity on the Barnett Shale in Texas from 2009 to 2011. Frohlich set up temporary seismographs on a 70-kilometer grid covering the Barnett Shale in Texas. The seismographs sensed and located earthquakes 1.5 magnitude and larger in the area. The seismographs revealed a spatial association between earthquakes and Class II injection wells, most of which were established to dispose of flowback and produced water from Barnett Shale wells, near Dallas-Fort Worth and Cleburne, Texas. Some of the earthquakes were greater than magnitude 3.0, and were felt by people at the surface, and reported in the local news. Earthquakes were reported in areas where there had previously been no recorded earthquakes. The study found that the great majority of Class II injection wells are not associated with earthquakes. Injection-induced earthquakes were strongly associated with wells injecting more than 150,000 barrels of water per month, and particularly after those wells had been injecting for more than a year. The majority of induced earthquakes occurred in Johnson County, which seemed more prone to induced earthquakes than other parts of the Barnett play.Earthquakes large enough to be felt by people have also been linked to some deep disposal wells that receive hydraulic fracturing flowback and produced water from hydraulically fractured wells. Flowback and brine from oil and gas wells are injected into EPA-regulated class II disposal wells. According to the EPA, approximately 144,000 such class II disposal wells in the US receive more than 2 billion US gallons (7.6 Gl) of wastewater each day. To date, the strongest earthquakes triggered by underground waste injection were three quakes close to Richter magnitude 5 recorded in 1967 near a Colorado disposal well which received non-oilfield waste.According to the USGS only a small fraction of roughly 40,000 waste fluid disposal wells for oil and gas operations in the United States have induced earthquakes that are large enough to be of concern to the public. Although the magnitudes of these quakes has been small, the USGS says that there is no guarantee that larger quakes will not occur. In addition, the frequency of the quakes has been increasing. In 2009, there were 50 earthquakes greater than magnitude 3.0 in the area spanning Alabama and Montana, and there were 87 quakes in 2010. In 2011 there were 134 earthquakes in the same area, a sixfold increase over 20th-century levels. There are also concerns that quakes may damage underground gas, oil, and water lines and wells that were not designed to withstand earthquakes.The 2011 Oklahoma earthquake, the second-largest earthquake in Oklahoma history at magnitude 5.7, has been linked by some researchers to decades-long injection of brine. A 2015 study concluded that recent earthquakes in central Oklahoma, which includes 5.7 magnitude quake, were triggered by injection of produced water from conventional oil reservoirs in the Hunton Group, and are unrelated to hydraulic fracturing.Class II disposal wells receiving brine from Fayetteville Shale gas wells in Central Arkansas triggered hundreds of shallow earthquakes, the largest of which was magnitude 4.7, and caused damage. In April 2011, the Arkansas Oil and Gas Commission halted injection at two of the main disposal wells, and the earthquakes abated.Several earthquakes in 2011, including a 4.0 magnitude tremor on New Year's Eve that hit Youngstown, Ohio, are likely linked to a disposal of hydraulic fracturing wastewater, according to seismologists at Columbia University. By order of the Ohio Department of Natural Resources, the well had stopped injecting on December 30, 2011. The following day, after the 4.0 quake, Ohio governor John Kasich ordered an indefinite halt to injection in three additional deep disposal wells in the vicinity. The Department of Natural Resources proposed a number of tightened rules to its Class II injection regulations. The Department noted that there were 177 operational Class II disposal wells in the state, and that the Youngstown well was the first to produce recorded earthquakes since Ohio's Underground Injection Control program began in 1983.Since 2008, more than 50 earthquakes, up to a magnitude of 3.5, have occurred in the area of north Texas home to numerous Barnett Shale gas wells, an area that previously had no earthquakes. No injuries or serious damage from the earthquakes has been reported. A study of quakes near the Dallas-Fort Worth Airport 2008–2009, concluded that the quakes were triggered by disposal wells receiving brine from gas wells.A two-year study 2009–2011 by University of Texas researchers concluded that a number of earthquakes from Richter magnitude 1.5 to 2.5 in the Barnett Shale area of north Texas were linked to oilfield waste disposal into Class II injection wells. No quakes were linked to hydraulic fracturing itself. Researchers noted that there are more than 50,000 Class II disposal wells in Texas receiving oilfield waste, yet only a few dozen are suspected of triggering earthquakes.On May 31, 2014, an earthquake registering at a magnitude of 3.4 occurred in Greeley, Colorado. The earthquake occurred near two hydraulic fracturing wastewater injection wells that are reportedly close to capacity. One waste injection well is 8,700 feet deep and 20 years old, while the other is 10,700 feet and just two years old. A research team from the University of Colorado Boulder have placed seismographs in the area to monitor further activity.
Abandoned wells
Drilling for oil and gas has been going on in Pennsylvania since 1859, and there are an estimated 300,000 to 500,000 wells drilled before the state kept track of the wells, or required them to be properly plugged. The Pennsylvania Department of Environmental Protection (DEP) has a program to locate and plug old wells. A 2014 study examined 19 abandoned wells, 14 of which had never been plugged, and only one of which was known to the state. Methane leakage rates were measured, and extrapolations over all the expected orphaned wells in the state indicated that the old wells made up a significant source of methane. A 2019 study explores the long-term (> 30 years) flow and transport of fracturing fluids into overburden layers and groundwater aquifers through a leaky abandoned well. It shows the spatial properties of the abandoned well as well as its distance from the hydraulic fracture are the most important factors influencing the vertical flow of fracturing fluid into groundwater aquifers. The study suggests that even for various field settings, only a limited amount of fracturing fluid can reach the aquifer in a long-term period.
Health effects
There is worldwide concern over the possible adverse public health implications of hydraulic fracturing activity. Intensive research is underway to ascertain whether there are impacts on a number of health conditions.Potential sources for ground and surface water exposure to toxins and toxicants (including endocrine-disrupting hormones, heavy metals, minerals, radioactive substances, and salts) include 1) the drilling and fracturing phase; 2) improper treatment of wastewater, including spills during transport; and 3) failure of cement wall casings.
Many of the above contaminants have been associated with poor health outcomes, especially reproductive and developmental. Heavy metal and benzene/toluene exposure during pregnancy has been associated with miscarriage and stillbirths. Benzene and toluene have been associated with menstrual cycle disorders. Cancer, blood disorders, nervous system impairment, and respiratory issues have also been cited as potential complications of hydraulic fracturing fluid exposure.The 2014 EPA Executive summary describes evidence of drinking water contamination due to spills, inadequate casings, and other etiologies. Per this summary, frequency estimates range from one spill for every 100 wells in Colorado to between 0.4–12.2 spills for every 100 wells in Pennsylvania. Furthermore, "at least 3% of the wells (600 out of
23,000 wells) did not have cement across a portion of the casing installed through the protected ground water resource identified by well operators."While the health effects of water contamination, as well as air pollution and other potential health hazards due to hydraulic fracturing, is not well understood, studies report concerning findings. A 2014 retrospective cohort study of 124,842 births between 1996–2009 in rural Colorado reported statistically significant odds of congenital heart disease, including neural tube defects, with resident exposure to hydraulic fracturing.A 2015 study revealed lower birth weights and a higher incidence of small for gestational age comparing most to least exposed.A 2013 review focusing on Marcellus shale gas hydraulic fracturing and the New York City water supply stated, "Although potential benefits of Marcellus natural gas exploitation are large for transition to a clean energy economy, at present the regulatory framework in New York State is inadequate to prevent potentially irreversible threats to the local environment and New York City water supply. Major investments in state and federal regulatory enforcement will be required to avoid these environmental consequences, and a ban on drilling within the NYC water supply watersheds is appropriate, even if more highly regulated Marcellus gas production is eventually permitted elsewhere in New York State."Early in January 2012, Christopher Portier, director of the US CDC's National Center for Environmental Health and the Agency for Toxic Substances and Disease Registry, argued that, in addition to the EPA's plans to investigate the impact of fracking on drinking water, additional studies should be carried out to determine whether wastewater from the wells can harm people or animals and vegetables they eat.As of May 2012, the United States Institute of Medicine and United States National Research Council were preparing to review the potential human and environmental risks of hydraulic fracturing.In 2011 in Garfield County, Colorado, the U.S. Agency for Toxic Substances and Disease Registry collected air samples at 14 sites, including 8 oil and gas sites, 4 urban background sites, and 2 rural background sites. and detected carcinogens such as benzene, tetrachloroethene, and 1–4 dichlorobenzene at all the sites, both oil and gas sites, and background sites. Benzene was detected at 7 out of 8 oil and gas sites, in all 4 urban areas, and one out of the 2 rural background sites. The compound 1,4-dichlorobezene was detected in 3 out of 8 oil and gas sites, 3 out of 4 urban sites, and 1 out of 2 rural background sites. The benzene concentrations at one of the eight oil and gas sites was identified as cause for concern, because although it was within the acceptable range, it was near the upper limit of the range. The report concluded: "With the exception of the Brock site, these risk estimates do not appear to represent a significant theoretical cancer risk at any of the sites, nor does it appear that that the theoretical cancer risk is elevated at oil and gas development sites as compared to urban or rural background sites."In 2011, the EPA released new emissions guidelines stating that the old standards could have led to an unacceptably high risk of cancers for those living near drilling operations.
Worker health
In 2013 the United States the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) released a hazard alert based on data collected by NIOSH that "workers may be exposed to dust with high levels of respirable crystalline silica (silicon dioxide) during hydraulic fracturing." NIOSH notified company representatives of these findings and provided reports with recommendations to control exposure to crystalline silica and recommend that all hydraulic fracturing sites evaluate their operations to determine the potential for worker exposure to crystalline silica and implement controls as necessary to protect workers.The EPA states in their Hydraulic Fracturing Study Plan (2011) that the exposure to hydraulic fracturing chemicals in an occupational setting needs to be examined to determine the acute and chronic effects on health. The exposure risks such as "transport, mixing, delivery, and potential accidents" have not been properly assessed (p. 57).
Silica exposure in hydraulic fracturing
Hydraulic fracturing sites have a visible bloom of dust, which causes an occupational health concern of exposure to respirable crystalline silica. Silicosis is an incurable lung disease associated with exposure to respirable crystalline silica or better known as silica dust. In addition to silicosis, exposure to crystalline silica is linked to lung cancer, pulmonary tuberculosis, kidney disease, autoimmune disorders and airway disease such as asthma and bronchitis. Most of these debilitating and potentially fatal diseases are preventable with occupational control measures regarding respirable crystalline exposure.Hydraulic fracturing uses abundant amounts of sand in the process of fracturing as part of the hydraulic fluid. The fracturing fluid consists of a base fluid, proppant and chemical additives. The majority of proppant used in fracturing are made of silica (sand). Truckloads of sand are delivered to the sites, then loaded to sand movers that are then transferred to a blender that mixes the hydraulic fluid. The hydraulic fluid is injected at high pressure into the fracture. The proppant keeps the fracture open to allow more oil and gas to be extracted out.Silicon dioxide (SiO2) is the chemical compound of silica, which is a prevalent component of rock, soil and sand. The most common form of silica is quartz, and it can break apart into dust microparticles that become respirable crystalline silica. The respirable crystalline silica are particles less than 10 microns (micrometers), which are small enough to enter the part of the lungs were oxygen and carbon dioxide gases are exchanged.The preventable disabling disease of silicosis has three main types, chronic, acute and accelerated. Chronic silicosis is the most common occurring after 10–20 years of low to moderate exposure of respirable crystalline silica. Current studies have shown workers exposed to silica at the current recommend exposure limits (REL) during a lifetime of work develop chronic silicosis. A chest x-ray is used to diagnose chronic silicosis, which has similar symptoms as chronic obstructive pulmonary disease (COPD). General symptoms are shortness of breath, productive or nonproductive cough, fatigue, and occasionally respiratory failure. accelerated silicosis has similar symptoms as chronic silicosis, however it develops rapidly in 5–10 years of high exposure to respirable crystalline silica. Lastly, acute silicosis is less prevalent than the other types, however, it is a more severe disease with a high occurrence of disability and death. Acute silicosis develops between several months to years with extreme levels of silica exposure, and severe symptoms include shortness of breath, weakness, cough, fever and weight loss. Setting effective control levels and monitoring the adherence to those levels will be crucial in preventing silicosis.
NIOSH set the recommend exposure limit (REL) for silica at a fixed value of 0.05 milligrams per cubic meter as a time-weighted average (TWA) for up to a ten-hour shift during a forty-hour workweek. A NIOSH study that obtained 116 air samples at 11 different hydraulic fracturing sites found above REL levels of silica in 79% of samples. In this study, 31% of the samples indicated levels at least ten times the REL. N IOSH studied the levels of exposure at different parts of the fracturing process and found seven primary areas of high respirable crystalline silica exposure with transfer belts and sand movers as the highest . The knowledge obtained from these studies has provided OSHA, NIOSH, and the fracturing industry areas to focus on silica control measures .According to NIOSH and OSHA, a combination of engineering controls, protective personal equipment, safety education, alternative proppant, and worksite safety practices are the key to protecting workers from respirable crystalline silica exposure. One particular engineering control that is used in field testing is the mini-baghouse that reduces the silica dust produced by the sand movers. Personal protective equipment is normally used in jobs with silica exposure, however, NIOSH discovered that incorrect respirators, a half mask type, was used and did not meet the silica exposure levels. NIOSH and OSHA recommend a full face air purifying respirator (PAPR) for all workers exposed to high levels of silica. Another control measure is using a silica substitute proppant such as sintered bauxite, ceramics, or resin-coated sand, however OSHA notes that the safety testing must be performed on these alternatives. Besides these controls measures, the recommend exposure limits (REL) and permissible exposure levels (PEL) need to be set lower than current levels. By June 2016, new regulations for silica will take effect, which lower the PEL to 50 micrograms per cubic meter of silica in the air.A study by National Institute for Occupational Safety and Health concluded that an inhalation health hazard existed for workers exposed to crystalline silica (sand dust) at the evaluated hydraulic fracturing sites. NIOSH notified company representatives of these findings and provided reports with recommendations to control exposure to crystalline silica. NIOSH recommended that all hydraulic fracturing sites evaluate their operations to determine the potential for worker exposure to crystalline silica and implement controls as necessary to protect workers. Hydraulic fracturing also affects individuals nearby, like the case previously discussed about the nurse who became ill after exposure from treating a hydraulic fracturing worker (Frankowski, 2008).
Other concerns
A 2012 OSH article outlined the risk of worker radiation exposure.
Research and lobbying
The New York Times has reported that, since the 1980s, the EPA investigations into the oil and gas industry's environmental impact—including the ongoing one into fracking's potential impact on drinking water—and associated reports had been narrowed in scope and/or had negative findings removed due to industry and government pressure.A 2004 EPA study on hydraulic fracturing in coalbed methane wells concluded that the process was safe, and didn't warrant further study, because there was "no unequivocal evidence" of health risks to groundwater, and the fluids were neither necessarily hazardous nor able to travel far underground. The EPA report did find uncertainties in knowledge of how fracturing fluid migrates through rocks, and recommended that diesel fuel not be used as a component of fracturing fluid in coalbed methane walls due to its potential as a source of benzene contamination; in response, well service companies agreed to stop using diesel fuel in coalbed methane wells. One of the authors of the 2004 EPA report noted that it studied only hydraulic fracturing in coalbed methane wells.The New York Times cited Weston Wilson, the agency whistle-blower, that the results of the 2004 EPA study were influenced by industry and political pressure. An early draft of the study discussed the possibility of dangerous levels of hydraulic fracturing fluid contamination and mentioned "possible evidence" of aquifer contamination. The final report concluded simply that hydraulic fracturing "poses little or no threat to drinking water". The study's scope was narrowed so that it only focused on the injection of hydraulic fracturing fluids, ignoring other aspects of the process such as disposal of fluids and environmental concerns such as water quality, fish kills, and acid burns. The study was concluded before public complaints of contamination started emerging.: 780 The study's conclusion that the injection of hydraulic fracturing fluids into coalbed methane wells posed a minimal threat to underground drinking water sources may have influenced the 2005 Congressional decision that hydraulic fracturing should continue to be regulated by the states and not under the federal Safe Drinking Water Act.
A 2011 study by Congressional Democrats and reporting by the New York Times that same year found that hydraulic fracturing had resulted in significant increases of radioactive material including radium and carcinogens including benzene in major rivers and watersheds. At one site the amount of benzene discharged into the Allegheny River after treatment was 28 times accepted levels for drinking water. The congressional representatives called for better regulation and more disclosure.In June 2015, the EPA released a report entitled "Assessment of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources" in which the EPA "did not find evidence that these mechanisms have led to widespread, systemic impacts on drinking water resources in the United States". However, the EPA also noted that the mechanisms assessed in the report were not considered "widespread" and that evaluation of identified cases rests on limiting factors that include "insufficient pre- and post-fracturing data on the quality of drinking water resources; the paucity of long-term systematic studies; the presence of other sources of contamination precluding a definitive link between hydraulic fracturing activities and an impact; and the inaccessibility of some information on hydraulic fracturing activities and potential impacts." The report suggested that two types of water withdrawals had potential for water resource contamination, namely ground water withdrawals and surface water withdrawals. Perhaps more controversial is the recent Final Rule that was suspended on September 30, 2015 by US District Judge Scott Skavdahl with the Wyoming District Court. Skavdahl entertained arguments that the regulative authority for hydraulic fracturing should rest with the EPA instead of the Bureau of Land Management. Colorado, Utah (including the Ute Indian Tribe of the northern area of the state), Wyoming, North Dakota, the Independent Petroleum Association of America and the Western Energy Alliance included statements that the new rule would interfere in state regulations and cause redundancies that could take away resources from other programs. Furthermore, Skavdahl considered the argument that the "final rules lack factual or scientific support" and that the opposition is supported by the recent publication of the June 2015 EPA report.
Built Environment/Infrastructure
Hydraulic Fracturing's effects on built infrastructure are often underestimated. The fracking process requires heavy equipment and vast amount of water, chemicals, and other materials, thus transportation of that equipment, liquids, and materials, requires trucks with heavy tankers. This has caused infrastructure damage to local roads and bridges that were not designed and constructed to frequently withstand heavier loads.Each individual fracking well requires a vast amount of truck traffic. Studies estimated that on average, to fracture (build and drill) a single well, between 1,760 and 1,904 truck trips are needed to transport equipment, chemicals, water and other materials; removing fracking wastes and transporting the natural gas require additional truck trips. The infrastructure deterioration caused by this heavy truck traffic has a huge economic impact/burden on local states. In July 2012, according to the Texas Department of Transportation, local fracking activities had cost an estimate of 2 billion dollars in damage to roads that connect drilling sites to storage sites. In Pennsylvania, a study conducted in 2014 based on data on the distribution of fracking well activity and the roadway type in the state estimated that the road reconstruction costs caused by additional heavy truck traffic from Marcellus Shale natural gas development in 2011 were about $13,000–$23,000 per well for all state roadway types.Many similar studies are underway in different states to evaluate the potential infrastructure impact from fracking. However, existing evidence suggests that road and bridge deterioration from overloading infrastructure be taken into consideration when evaluating the environmental and economic cost of the fracking process.
See also
Environmental issues in the United States
Exemptions for hydraulic fracturing under United States federal law
Pollution in the United States
References
Further reading
Joseph D. Ayotte; et al. (August 2011). "Trace Elements and Radon in Groundwater Across the United States, 1992–2003". U.S. Geological Survey. Retrieved 25 May 2012.
Bamberger, Michelle; Oswald, Robert E. (2012). "Impacts of gas drilling on human and animal health" (PDF). New Solutions: A Journal of Environmental and Occupational Health Policy. 22 (1): 51–77. doi:10.2190/NS.22.1.e. PMID 22446060. S2CID 23794102. Archived from the original (PDF) on 2016-04-03. Retrieved 2012-12-21.
Colorado Oil & Gas Conservation Commission. "Gasland Correction Document" (PDF). Archived from the original (PDF) on 5 September 2013. Retrieved 7 August 2013.
Colborn, Theo; Kwiatkowski, Carol; Schultz, Kim; Bachran, Mary (2011). "Natural Gas Operations from a Public Health Perspective" (PDF). Human and Ecological Risk Assessment. 17 (5): 1039–1056. doi:10.1080/10807039.2011.605662. S2CID 53996198. Archived from the original (PDF) on 2012-04-26.
DiCosmo, Bridget (15 May 2012). "SAB Pushes To Advise EPA To Conduct Toxicity Tests In Fracking Study". InsideEPA. Inside Washington Publishers. (subscription required). Retrieved 2012-05-19.
Mark Drajem (27 September 2012). "Diesel in Water Near Fracking Confirms EPA Tests Wyoming Disputes". Bloomberg News. Archived from the original on September 30, 2012. Retrieved 28 September 2012.
Energy Institute (February 2012). Fact-Based Regulation for Environmental Protection in Shale Gas Development (PDF) (Report). University of Texas at Austin. Retrieved 29 February 2012.
Fontenot, Brian E.; Hunt, Laura R.; Hildenbrand, Zacariah L.; Carlton Jr., Doug D.; Oka, Hyppolite; Walton, Jayme L. (2013). "An Evaluation of Water Quality in Private Drinking Water Wells Near Natural Gas Extraction Sites in the Barnett Shale Formation". Environ. Sci. Technol. 47 (17): 10032–10040. Bibcode:2013EnST...4710032F. doi:10.1021/es4011724. PMID 23885945. S2CID 20526429.
Grant, Alison (4 April 2013). "FracTracker monitors shale development in Ohio". The Plain Dealer. Retrieved 28 July 2013.
Mead Gruver (12 December 2011). "New Data, but Not Much New in Wyo. Fracking Study". EPA. Retrieved 6 May 2013.
Christopher Helman (8 December 2011). "What If Fracking Did Pollute Wyoming Water?". Forbes.com. Retrieved 6 February 2012.
Jackson, R. B.; Vengosh, A.; Darrah, T. H.; Warner, N. R.; Down, A.; Poreda, R. J.; Osborn, S. G.; Zhao, K.; Karr, J. D. (24 June 2013). "Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction". Proceedings of the National Academy of Sciences. 110 (28): 11250–11255. Bibcode:2013PNAS..11011250J. doi:10.1073/pnas.1221635110. PMC 3710833. PMID 23798404.
McKenzie, Lisa; Witter, Roxana; Newman, Lee; Adgate, John (2012). "Human health risk assessment of air emissions from development of unconventional natural gas resources". Science of the Total Environment. 424: 79–87. Bibcode:2012ScTEn.424...79M. CiteSeerX 10.1.1.368.4553. doi:10.1016/j.scitotenv.2012.02.018. PMID 22444058. S2CID 19248364.
Molofsky, L.J.; Connor, J.A.; Shahla, K.F.; Wylie, A.S.; Wagner, T. (December 5, 2011). "Methane in Pennsylvania Water Wells Unrelated to Marcellus Shale Fracturing". Oil and Gas Journal. 109 (49): 54–67.
Moniz, Ernest J.; et al. (June 2011). The Future of Natural Gas: An Interdisciplinary MIT Study (PDF) (Report). Massachusetts Institute of Technology. Retrieved 1 June 2012.
Munro, Margaret (17 February 2012). "Fracking does not contaminate groundwater: study released in Vancouver". Vancouver Sun. Retrieved 3 March 2012.
Osborn, Stephen G.; Vengosh, Avner; Warner, Nathaniel R.; Jackson, Robert B. (2011-05-17). "Methane contamination of drinking water accompanying gas-well drilling and hydraulic fracturing". Proceedings of the National Academy of Sciences of the United States of America. 108 (20): 8172–8176. Bibcode:2011PNAS..108.8172O. doi:10.1073/pnas.1100682108. PMC 3100993. PMID 21555547.
phillynowstaff (9 December 2011). "EPA Releases Report on Water Contamination By Fracking, As GA Pushes Fee Bills". PhillyNow blog. Philadelphia Weekly. Archived from the original on 16 July 2012. Retrieved 6 February 2012.
PEHSU (August 2011). PEHSU Information Concerning Effects on Children of Natural Gas Extraction and Hydraulic Fracturing (Report). Propublica. Retrieved 2013-05-06.
Schmidt, Charles W. (August 2011). "Blind Rush? Shale Gas Boom Proceeds Amid Human Health Questions". Environmental Health Perspectives. 119 (1): A348–53. doi:10.1289/ehp.119-a348. PMC 3237379. PMID 21807583.
Vaughan, Vicki (16 February 2012). "Fracturing 'has no direct' link to water pollution, UT study finds". Retrieved 3 March 2012.
Helen Westerman (11 January 2012). "Gas drilling research highlights risk to animals, but more thorough work needed". The Conversation. Retrieved 25 May 2012.
External links
FracTracker.org Maps, data, and articles from news, government, industry, and academic sources.
"FAQ: Hydraulic Fracturing, SDWA, Fluids, and DeGette/Casey" (PDF). Energy In Depth. Retrieved 27 March 2013.
"Groundwater Investigation: Pavillion, WY". EPA. Retrieved 6 February 2012.
Natural gas wells leakier than believed: Measurements at Colorado site show methane release higher than previous estimates 24 March 2012, differences between NOAA and United States Environmental Protection Agency estimates |
assessing the environmental impacts of consumption and production | Assessing the Environmental Impacts of Consumption and Production: Priority Products and Materials is a scientific assessment published in 2010 by the International Resource Panel (IRP) of the United Nations Environment Programme (UNEP). The report assessed the environmental impact of several activities, including food production.
Summary
The report assessed the impact of economic activities on the environment. It identified that the most critical impacts are related to ecosystem health, human health and resource depletion. From a combined production, consumption and materials perspective, the authors found that the production of food and all processes involving fossil fuels had the greatest impacts. Animal products caused more damage than producing construction minerals such as sand or cement, plastics or metals. Currently, more than half the world's crops are used to feed animals. In America, more than one-third of the fossil fuels produced are used to raise animals for food.The authors explained that Western dietary preferences for meat would be unsustainable as the world population rose to the forecast 9.1 billion by 2050. Demand for meat is expected to double by this date; meat consumption is steadily rising in countries such as China that once followed more sustainable, vegetable-based diets. According to the report: "Impacts from agriculture are expected to increase substantially due to population growth, increasing consumption of animal products. Unlike fossil fuels, it is difficult to look for alternatives: people have to eat. A substantial reduction of impacts would only be possible with a substantial worldwide diet change, away from animal products."
Role of the IRP
The IRP provides independent scientific assessments and expert advice on a variety of areas, including:
the volume of selected raw material reserves and how efficiently these resources are being used
the lifecycle-long environmental impacts of products and services created and consumed around the globe
options to meet human and economic needs with fewer or cleaner resources.
References
External links
www.resourcepanel.org
www.unep.org
The report |
leopold matrix | The Leopold matrix is a qualitative environmental impact assessment method developed in 1971 by Luna Leopold and collaborators for the USGS. It is used to identify and assign numerical weightings to potential environmental impacts of proposed projects on the environment. It came as a response to the National Environmental Policy Act of 1969 which was criticized for lacking adequate guidance for government agencies on how to properly predict potential environmental impacts and consequently prepare impact reports.
The system consists of a grid of 100 rows representing the possible project activities on the horizontal axis and 88 columns representing environmental factors on the vertical axis, for a total of 8800 possible interactions. In practice, only a select few (25-50) of these interactions are likely to be of sufficient importance to be thoroughly considered. Where an impact is expected, the appropriate cell of the matrix is split diagonally from the top right corner to the bottom left corner in order for the magnitude and importance of each interaction to be recorded. The magnitude (from -10 to +10) is inserted on the top-left diagonal and the importance (from 1 to 10) is inserted on the bottom-right diagonal. Measurements of magnitude and importance tend to be related, but do not necessarily directly correlate. Magnitude can be measured more tangibly in terms of how much area is affected by the development or how severely, however, the importance is a more subjective measurement. While a proposed development may have a large impact in terms of magnitude, the effects it causes may not actually significantly affect the environment as a whole. The example given by author Luna Leopold is of a stream that significantly alters the erosion patterns in a specific area, which may be scored highly in terms of magnitude but may not be necessarily significant, provided the stream in question is swift-moving and transports large amounts of sediment regardless. In this case, an impact of significant magnitude may not actually be important to the environment in question.
Strengths
As outlined by the original authors, the matrix provides a structured framework for practitioners of environmental impact assessment to systematically rank potential significant environmental cause-and-effect relationships. A structured approach avoids the downsides of less organized ad hoc approaches to impact prediction in which impacts can be either underestimated or completely overlooked. Additionally, the grid format allows for a visual display of results that can be easily understood by policymakers and the public. The matrix is also capable of expanding and contracting based on the scope and environmental context of any given undertaking, rendering it functional for both large and small-scale projects. Finally, it is beneficial to practitioners that the tool can be applied at various temporal stages of the environmental impact assessment process.
Criticisms
One of the fundamental downfalls of the method is the lack of criteria or standard methods for assigning magnitude and significance values which may lead to subjective judgements. In the same vein, the method has also been identified as lacking the ability to facilitate any degree of public involvement, primarily due to the subjective value judgements of the user. Another potential pitfall is the sheer size of the matrix with a total of 17 600 items of information potentially being analyzed. The size of the matrix has also been criticized as being too detailed for some projects while simultaneously being too imprecise for others. In terms of direct content, the chance of double-counting certain impacts is also present. The matrix has further been identified as being highly biased toward biophysical impacts making the social impacts of a given project difficult to assess. Of the impacts that are covered, the matrix is seldom capable of taking into consideration secondary or cumulative impacts which are often significant considerations in environmental impact assessment. Another area that the method can be deficient in is having a mechanism capable of distinguishing between long-term impacts and short-term impacts. Due to the presentation of completed matrices, the method has also been identified as treating interactions as though they are certain to occur, with no consideration of probability.
Examples of Leopold Matrix Implementation
Gonabad landfill; a study conducted to evaluate the environmental effects of a municipal waste landfill site.
Vojvodina ecological network; an assessment of the influences of anthropogenic factors on an ecological network (salt steppes, marshes, etc.).
Karbala water projects; a study on seven drinking water treatment facilities based on physio-chemical properties.
Binh Thuan desertification; an assessment of the potential desertification effects and subsequent impacts on socio-economic conditions and water availability.
See also
Environmental Impact Assessment – Assessment of the environmental consequences of a decision before action
Strategic Environmental Assessment
Social Impact Assessment – Reviews infrastructure and development
Impact Assessment – formal, evidence-based procedures that assess the economic, social, and environmental effects of public policyPages displaying wikidata descriptions as a fallback
Risk assessment – Estimation of risk associated with exposure to a given set of hazards
Precautionary Principle – Risk management strategy
International Association for Impact Assessment – International organization
Healthy development measurement tool – Evaluates impact of urban development
== References == |
list of environmental films | This article lists film and television works which feature or discuss the environment, environmentalism or environmental issues.
Some notable and commercially successful films have featured environmental themes and are commemorated through several environmental film festivals held annually. The Annual Environmental Media Awards have been presented by the Environmental Media Association (EMA) since 1991 to the best television episode or film with an environmental message.
List of documentary films about the environment
This is a list of documentary films related to the environment.
List of fictional films about the environment
Some fictional films are based on true events.
Television
See also
Timeline of history of environmentalism
Green Film Network
green.tv, a website dedicated to showing environmental films clips
DC Environmental Film Festival
Eco-terrorism in fiction
List of eco-horror films
Environmentalism in The Lord of the Rings
List of films about nuclear issues
National Film Award for Best Non-Feature Environment/Conservation/Preservation Film
References
External links
Green Planet Stream: Nature, Environment and Human Ecology films
Natural Heroes: Public Television series
Green.tv
Films on Environment Problems |
concentrated animal feeding operation | In animal husbandry, a concentrated animal feeding operation (CAFO; popularly known as factory farm), as defined by the United States Department of Agriculture (USDA), is an intensive animal feeding operation (AFO) in which over 1,000 animal units are confined for over 45 days a year. An animal unit is the equivalent of 1,000 pounds of "live" animal weight. A thousand animal units equates to 700 dairy cows, 1,000 meat cows, 2,500 pigs weighing more than 55 pounds (25 kg), 10,000 pigs weighing under 55 pounds, 10,000 sheep, 55,000 turkeys, 125,000 chickens, or 82,000 egg laying hens or pullets.CAFOs are governed by regulations that restrict how much waste can be distributed and the quality of the waste materials. As of 2012 there were around 212,000 AFOs in the United States,: 1.2 19,496 of which were CAFOs.Livestock production has become increasingly dominated by CAFOs in the United States and other parts of the world. Most poultry was raised in CAFOs starting in the 1950s, and most cattle and pigs by the 1970s and 1980s. By the mid-2000s CAFOs dominated livestock and poultry production in the United States, and the scope of their market share is steadily increasing. In 1966, it took 1 million farms to house 57 million pigs; by 2001, it took only 80,000 farms to house the same number.
Definition
There are roughly 212,000 AFOs in the United States,: 1.2 of which 19,496 met the more narrow criteria for CAFOs in 2016. The Environmental Protection Agency (EPA) has delineated three categories of CAFOs, ordered in terms of capacity: large, medium and small. The relevant animal unit for each category varies depending on species and capacity. For instance, large CAFOs house 1,000 or more cattle, medium CAFOs can have 300–999 cattle, and small CAFOs harbor no more than 300 cattle.
The table below provides some examples of the size thresholds for CAFOs:
The categorization of CAFOs affects whether a facility is subject to regulation under the Clean Water Act (CWA). EPA's 2008 rule specifies that "large CAFOs are automatically subject to EPA regulation; medium CAFOs must also meet one of two 'method of discharge' criteria to be defined as a CAFO (or may be designated as such); and small CAFOs can only be made subject to EPA regulations on a case-by-case basis." A small CAFO will also be designated a CAFO for purposes of the CWA if it discharges pollutants into waterways of the United States through a man-made conveyance such as a road, ditch or pipe. Alternatively, a small CAFO may be designated an ordinary animal feeding operation (AFO) once its animal waste management system is certified at the site.
Since it first coined the term, the EPA has changed the definition (and applicable regulations) for CAFOs on several occasions. Private groups and individuals use the term CAFO colloquially to mean many types of both regulated and unregulated facilities, both inside and outside the U.S. The definition used in everyday speech may thus vary considerably from the statutory definition in the CWA. CAFOs are commonly characterized as having large numbers of animals crowded into a confined space, a situation that results in the concentration of manure in a small area.
Key issues
Environmental impact
The EPA has focused on regulating CAFOs because they generate millions of tons of manure every year. When improperly managed, the manure can pose substantial risks to the environment and public health. In order to manage their waste, CAFO operators have developed agricultural wastewater treatment plans. The most common type of facility used in these plans, the anaerobic lagoon, has significantly contributed to environmental and health problems attributed to the CAFO.
Water quality
The large amounts of animal waste from CAFOs present a risk to water quality and aquatic ecosystems. States with high concentrations of CAFOs experience on average 20 to 30 serious water quality problems per year as a result of manure management issues.Animal waste includes a number of potentially harmful pollutants. Pollutants associated with CAFO waste principally include:
nitrogen and phosphorus, collectively known as nutrient pollution;
organic matter;
solids, including the manure itself and other elements mixed with it such as spilled feed, bedding and litter materials, hair, feathers and animal corpses;
pathogens (disease-causing organisms such as bacteria and viruses);
salts;
trace elements such as arsenic;
odorous/volatile compounds such as carbon dioxide, methane, hydrogen sulfide, and ammonia;
antibiotics;
pesticides and hormones.The two main contributors to water pollution caused by CAFOs are soluble nitrogen compounds and phosphorus. The eutrophication of water bodies from such waste is harmful to wildlife and water quality in aquatic system like streams, lakes, and oceans.Groundwater and surface water are closely linked, so polluting one often affects the other. Surface water may be polluted by CAFO waste through the runoff of nutrients, organics, and pathogens from fields and storage. Waste can be transmitted to groundwater through the leaching of pollutants. Some facility designs, such as lagoons, can reduce the risk of groundwater contamination, but the microbial pathogens from animal waste may still pollute surface and groundwater, harming wildlife and human health.A CAFO is responsible for one of the biggest environmental spills in U.S. history. In 1995, a 120,000-square-foot (11,000 m2) lagoon ruptured in North Carolina. North Carolina contains a lot of the United States' industrial hog operations, which disproportionally impact Black, Hispanic and Indian American residents. The spill released 25.8 million US gallons (98,000 m3) of effluvium into the New River and killed 10 million local fish. The spill also contributed to an outbreak of Pfiesteria piscicida, which caused health problems in nearby humans, including skin irritation and short-term cognitive problems.
Air quality
CAFOs reduce ambient air quality. They release several gases harmful to humans: ammonia, hydrogen sulfide, methane, and particulate matter. Larger CAFOs release more gas, mostly by the decomposition of large stores of animal manure. CAFOs also emit strains of antibiotic resistant bacteria into the surrounding air, particularly downwind. Levels of antibiotics measured downwind from swine CAFOs were three times higher than those measured upwind. The source is not widely known, but animal feed is suspected.Globally, ruminant livestock are responsible for about 115 Tg/a of the 330 Tg/a (35%) of anthropogenic greenhouse gas emissions released per year. Livestock operations are responsible for about 18% of greenhouse gas emissions globally and over 7% of greenhouse gas emissions in the U.S. Methane is the second most concentrated greenhouse gas contributing to global climate change, with livestock contributing nearly 30% of anthropogenic methane emissions. Only 17% of livestock-related emissions come from manure, whereas most come from enteric fermentation or gases produced during digestion. 76% of bacteria grown within a swine CAFO are Staphylococcus Aureus, followed by Group A Streptococci and Fecal Coliforms.The Intergovernmental Panel on Climate Change (IPCC) acknowledges the big effect of livestock on methane emissions, antibiotic resistance, and climate change. To reduce emissions, it recommends removing sources of stress and changing how animals are fed, including sources of feed grain, amount of forage, and amount of digestible nutrients. The Humane Society of the United States (HSUS) argues for reducing use of non-therapeutic antibiotics, especially those that are widely used in human medicine, on the advice of over 350 organizations including the American Medical Association. If no change is made and methane emissions continue increasing in direct proportion to the number of livestock, global methane production is predicted to increase by 60% by 2030. Greenhouse gases and climate change make air worse, causing illnesses such as respiratory disorders, lung tissue damage, and allergies. Reducing the increase of greenhouse gas emissions from livestock could rapidly curb global warming. Also, people near CAFOs often complain of the smell, which comes from a complex mixture of ammonia, hydrogen sulfide, carbon dioxide, and volatile and semi-volatile organic compounds.
Waste disposal also makes air worse. Some CAFOs will use "spray fields" and pump the waste of thousands of animals into a machine that sprays it onto an open field. The spray can be carried by wind onto nearby homes, depositing pathogens, heavy metals, and antibiotic resistant bacteria into the air of poor or minority communities. It often contains respiratory and eye irritants including hydrogen sulfide and ammonia.
Economic impact
Increased role in the market
The economic role of CAFOs has expanded significantly in the U.S. in the past few decades, and there is clear evidence that CAFOs have come to dominate animal production industries. The rise in large-scale animal agriculture began in the 1930s with the modern mechanization of swine slaughterhouse operations.
The growth of corporate contracting has also contributed to a transition from a system of many small-scale farms to one of relatively few large industrial-scale farms. This has dramatically changed the animal agricultural sector in the United States. According to the National Agricultural Statistics Service, "In the 1930s, there were close to 7 million farms in the United States and as of the 2002 census, just over 2 million farms remain." From 1969 to 2002, the number of family farms dropped by 39%, yet the percentage of family farms has remained high. As of 2004, 98% of all U.S. farms were family-owned and -operated. Most meat and dairy products are now produced on large farms with single-species buildings or open-air pens.Due to their increased efficiency, CAFOs provide a source of low cost animal products: meat, milk and eggs. CAFOs may also stimulate local economies through increased employment and use of local materials in their production. The development of modern animal agriculture has increased the efficiency of raising meat and dairy products. Improvements in animal breeding, mechanical innovations, and the introduction of specially formulated feeds (as well as animal pharmaceuticals) have contributed to the decrease in cost of animal products to consumers. The development of new technologies has also helped CAFO owners reduce production cost and increase business profits with less resources consumption. The growth of CAFOs has corresponded with an increase in the consumption of animal products in the United States. According to author Christopher L. Delgado, "milk production has doubled, meat production has tripled, and egg production has increased fourfold since 1960" in the United States.Along with the noted benefits, there are also criticisms regarding CAFOs' impact on the economy. Many farmers in the United States find that it is difficult to earn a high income due to the low market prices of animal products. Such market factors often lead to low profit margins for production methods and a competitive disadvantage against CAFOs. Alternative animal production methods, like "free range" or "family farming" operations are losing their ability to compete, though they present few of the environmental and health risks associated with CAFOs.
Negative production externalities
The price of meat does not reflect the negative ecological impacts that result from industrial agricultural systems. The negative production externalities (when market prices inappropriately reflect or hide the societal harms incurred in the creation of a product) of CAFOs include damaging effects to the environment caused by, among others, ever-increasing amounts of often poorly managed waste. The costs from damage caused to the atmosphere (in the form of GHGs), water, soil, fisheries, and recreational areas, estimated at hundreds of billions of dollars, are typically not incurred by corporations that feature the use of CAFOs in their business models. Additionally, human antimicrobial resistance from antibiotic use in industrial animal agriculture represents a serious risk to societal wellbeing. Corporations that rely on using CAFOs through contract farming have an unfair economic advantage because the costs of managing animal waste is shifted to contract farmers and, when spills occur, to the areas surrounding them. Property values near CAFOs may plummet considerably due to the detrimental impacts that CAFOs can have on air, water, and land in the nearby areas. For instance, researchers found that there is a statistically significant relationship between property values declines and CAFO proximity.
Other economic criticisms
Critics of CAFOs also maintain that CAFOs benefit from industrial and agricultural tax breaks and subsidies, and the "vertical integration of giant agribusiness firms". The U.S. Department of Agriculture (USDA), for instance, spent an average of $16 billion annually between FY 1996 to FY 2002 on commodity-based subsidies. Lax enforcement of anti-competitive practices may be helping create a market monopoly. Critics also contend that CAFOs cut costs by overusing antibiotics.
Public health concerns
The direct discharge of manure from CAFOs and the accompanying pollutants (including nutrients, antibiotics, pathogens, and arsenic) is a serious public health risk. The contamination of groundwater with pathogenic organisms from CAFOs can threaten drinking water, and contamination of drinking water with pathogens can cause outbreaks of infectious disease. The EPA estimates that 53% of the United States population drinks groundwater.Contamination of water by CAFOs causes various heart problems. Accidental ingestion of contaminated water can result in diarrhea or other gastrointestinal illnesses. Dermal exposure can result in irritation and infection of the skin, eyes or ear. High levels of nitrate in drinking water are associated with increased risk of hyperthyroidism, insulin-dependent diabetes, and central nervous system malformations.Antibiotic contamination also threatens human health. To maximize animal production, CAFOs are using ever more antibiotics, which in turn increases bacterial resistance. This resistance makes it harder to treat bacterial infections. Contaminated surface water and groundwater is particularly concerning, as these can spread antibiotic-resistant bacteria. Antibiotic resistance can result due to DNA mutations, transformations and conjugations arising from various antibiotics and pharmaceutical drugs found in drinking water.Antibiotics are used heavily in CAFOs to both treat and prevent illness in individual animals as well as groups. Animals in CAFOs are close together, so pathogens spread easily. Even if their stock are not sick, CAFOs put low doses of antibiotics into feed "to reduce the chance for infection and to eliminate the need for animals to expend energy fighting off bacteria, with the assumption that saved energy will be translated into growth". This is a non-therapeutic use of antibiotics. Such antibiotic use is thought to allow animals to grow faster and bigger, increasing the CAFO's output. Regardless, the World Health Organization has recommended that the non-therapeutic use of antibiotics in animal husbandry be reevaluated, as such antibiotic overuse breeds antibiotic-resistant bacteria. When bacteria in or around animals are exposed to antibiotics, natural selection favours the spread of mutations with greater resistance. Use of antibiotics by CAFOs thus increases antimicrobial resistance. This threatens public health because resistant bacteria generated by CAFOs can be spread to the surrounding environment and communities via waste water discharge or aerosolization of particles.
Air pollution by CAFOs can cause asthma, headaches, respiratory problems, eye irritation, nausea, weakness, and chest tightness. These affect farm workers and nearby residents, including children. The risks to nearby residents were highlighted in a study evaluating health outcomes of more than 100,000 individuals living in regions with high densities of CAFOs, finding a higher prevalence of pneumonia and unspecified infectious diseases in those with high exposures compared to controls. Furthermore, a Dutch cross-sectional study 2,308 adults found decreases in residents' lung function to be correlated with increases particle emissions by nearby farms. In regards to workers, multiple respiratory consequences should be noted. Although "in many big CAFOs, it takes only a few workers to run a facility housing thousands of animals," the long exposure and close contact to animals puts CAFO employees at an increased risk. This includes a risk of contracting diseases like Novel H1N1 flu, which erupted globally in spring of 2009, or MRSA, a strain of antibiotic resistant bacteria. For instance, livestock-associated MRSA has been found in the nasal passages of CAFO workers, on the walls of the facilities they work in, and in the animals they tend. In addition, individuals working in CAFOs are at risk for chronic airway inflammatory diseases secondary to dust exposure, with studies suggesting the possible benefits to utilizing inhaler treatments empirically. Studies conducted by the University of Iowa show that the asthma rate of children of CAFO operators is higher than that of children from other farms.
Negative effects on minority populations
Low income and minority populations suffer disproportionately from proximity to CAFO and pollution and waste. These populations suffer the most due to their lack of political clout to oppose construction of CAFOs and are often not economically capable of simply moving somewhere else.
In southern United States, the "Black Belt", a roughly crescent-shaped geological formation of dark fertile soil in the Southern United States well suited to cotton farming, has seen the long-lasting effects of slavery. During and after the Civil War, this area consisted mostly of black people who worked as sharecroppers and tenant farmers. Due to ongoing discrimination in land sales and lending, many African American farmers were systematically deprived of farmland. Today, communities in the Black Belt experience poverty, poor housing, unemployment, poor health care and have little political power when it comes to the building of CAFOs. Black and brown people living near CAFOs often lack the resources to leave compromised areas and are further trapped by plummeting property values and poor quality of life. In addition to financial problems, CAFOs are also protected by "right-to-farm" law that protects them from residents that are living in CAFO occupied communities.Not only are communities surrounded negatively affected by CAFOs, but the workers themselves experience harm from being on the job. In a study done in North Carolina that focused on twenty one Latino chicken catchers for a poultry-processing plant, the work place was found to be forcefully high intensity labor with high potential for injury and illness including trauma, respiratory illness, drug use and musculoskeletal injuries. Workers were also found to have little training about the job or safety. In the United States, agricultural workers are engaged in one of the most hazardous jobs in the country.CAFO workers have historically been African American but there has been a surge of Hispanic and often undocumented Hispanic workers. Between 1980 and 2000, there was a clear shift in an ethnic and racially diverse workforce, led by Hispanic workforce growth.[7] Oftentimes, CAFO owners will preferably hire Hispanic workers because they are low-skilled workers who are willing to work longer hours and do more intensive work. Due to this, there are increased ICE raids on meat processing plants.
Animal health and welfare concerns
CAFO practices have raised concerns over animal welfare from an ethics standpoint. Some view such conditions as neglectful to basic animal welfare. According to David Nibert, professor of sociology at Wittenberg University, more than 10 billion animals are housed in "horrific conditions" in more than 20,000 CAFOs across the U.S. alone, where they "spend their last 100–120 days crammed together by the thousands standing in their own excrement, with little or no shelter from the elements." Many people believe that the harm to animals before their slaughter should be addressed through public policy. Laws regarding animal welfare in CAFOs have already been passed in the United States. For instance, in 2002, the state of Florida passed an amendment to the state's constitution banning the confinement of pregnant pigs in gestation crates. As a source for comparison, the use of battery cages for egg-laying hens and battery cage breeding methods have been completely outlawed in the European Union since 2012.Whereas some people are concerned with animal welfare as an end in itself, others are concerned about animal welfare because of the effect of living conditions on consumer safety. Animals in CAFOs have lives that do not resemble those of animals found in the wild. Although CAFOs help secure a reliable supply of animal products, the quality of the goods produced is debated, with many arguing that the food produced is unnatural. For instance, confining animals into small areas requires the use of large quantities of antibiotics to prevent the spread of disease. There are debates over whether the use of antibiotics in meat production is harmful to humans.Since 1960 average milk cow production has increased from 5-kilogram /day (11 lb) to 30-kilogram /day (66 lb) by 2008, as noted by Dale Bauman and Jude Capper in the Efficiency of Dairy Production and its Carbon Footprint. The article points to the fact that the carbon footprint resulting from the production of a gallon of milk in 2007 is 37% of what it was in 1944.
Regulation under the Clean Water Act
Basic structure of CAFO regulations under the CWA
The command-and-control permitting structure of the Clean Water Act (CWA) provides the basis for nearly all regulation of CAFOs in the United States. Generally speaking, the CWA prohibits the discharge of pollution to the "waters of the United States" from any "point source", unless the discharge is authorized by a National Pollutant Discharge Elimination System (NPDES) permit issued by the EPA (or a state delegated by the EPA). CAFOs are explicitly listed as a point source in the CWA. Unauthorized discharges made from CAFOs (and other point sources) violate the CWA, even if the discharges are "unplanned or accidental." CAFOs that do not apply for NPDES permits "operate at their own risk because any discharge from an unpermitted CAFO (other than agricultural stormwater) is a violation of the CWA subject to enforcement action, including third party citizen suits."The benefit of an NPDES permit is that it provides some level of certainty to CAFO owners and operators. "Compliance with the permit is deemed compliance with the CWA... and thus acts as a shield against EPA or State CWA enforcement or against citizen suits under... the CWA." In addition, the "upset and bypass" provisions of the permit can give permitted CAFO owners a legal defense when "emergencies or natural disasters cause discharges beyond their reasonable control."Under the CWA, the EPA specifies the maximum allowable amounts of pollution that can be discharged by facilities within an industrial category (like CAFOs). These general "effluent limitations guidelines" (ELG) then dictate the terms of the specific effluent limitations found in individual NPDES permits. The limits are based on the performance of specific technologies, but the EPA does not generally require the industry to use these technologies. Rather, the industry may use "any effective alternatives to meet the pollutant limits."
The EPA places minimum ELG requirements into each permit issued for CAFOs. The requirements can include both numeric discharge limits (the amount of a pollutant that can be released into waters of the United States) and other requirements related to ELGs (such as management practices, including technology standards).
History of regulations
The major CAFO regulatory developments occurred in the 1970s and in the 2000s. The EPA first promulgated ELGs for CAFOs in 1976. The 2003 rule issued by the EPA updated and modified the applicable ELGs for CAFOs, among other things. In 2005, the court decision in Waterkeeper Alliance v. EPA (see below) struck down parts of the 2003 rule. The EPA responded by issuing a revised rule in 2008.
A complete history of EPA's CAFO rulemaking activities is provided on the CAFO Rule History page.
Background laws
The Federal Water Pollution Control Act of 1948 was one of the first major efforts of the U.S. federal government to establish a comprehensive program for mitigating pollution in public water ways. The writers of the act aimed to improve water quality for the circulation of aquatic life, industry use, and recreation. Since 1948, the Act has been amended many times to expand programming, procedures, and standards.President Richard Nixon's executive order, Reorganization Plan No. 3, created the EPA in 1970. The creation of the EPA was an effort to create a more comprehensive approach to pollution management. As noted in the order, a single polluter may simultaneously degrade a local environment's air, water, and land. President Nixon noted that a single government entity should be monitoring and mitigating pollution and considering all effects. As relevant to CAFO regulation, the EPA became the main federal authority on CAFO pollution monitoring and mitigation.Congress passed the CWA in 1972 when it reworked the Federal Water Pollution Control Amendments. It specifically defines CAFOs as point source polluters and required operations managers and/or owners to obtain NPDES permits in order to legally discharge wastewater from its facilities.
Initial regulations (1970s)
The EPA began regulating water pollution discharges from CAFOs following passage of the 1972 CWA. ELGs for feedlot operations were promulgated in 1974, placing emphasis on best available technology in the industry at the time. In 1976 EPA began requiring all CAFOs to be first defined as AFOs. From that point, if the specific AFO met the appropriate criteria, it would then be classified as a CAFO and subject to appropriate regulation. That same year, EPA defined livestock and poultry CAFO facilities and established a specialized permitting program. NPDES permit procedures for CAFOs were also promulgated in 1976.Prior to 1976, size had been the main defining criteria of CAFOs. However, after the 1976 regulations came into effect, the EPA stipulated some exceptions. Operations that were identified as particularly harmful to federal waterways could be classified as CAFOs, even if the facilities' sizes fall under AFOs standards. Additionally, some CAFOs were not required to apply for wastewater discharge permits if they met the two major operational-based exemptions. The first exception applied to operations that discharge wastewater only during a 25-year, 24-hour storm event. (The operation only discharges during a 24-hour rainfall period that occurs once every 25 years or more on average.) The second exception was when operations apply animal waste onto agricultural land.
Developments in the 1990s
In 1989, the Natural Resources Defense Council and Public Citizen filed a lawsuit against the EPA (and Administrator of the EPA, William Reilly). The plaintiffs claimed the EPA had not complied with the CWA with respect to CAFOs. The lawsuit, Natural Resources Defense Council v. Reilly (D.D.C. 1991), resulted in a court order mandating the EPA update its regulations. They did so in what would become the 2003 Final Rule.In 1995, the EPA released a "Guide Manual on NPDES Regulations for Concentrated Animal Feeding Operations" to provide more clarity to the public on NPDES regulation after the EPA's report "Feedlots Case Studies of Selected States" revealed there was uncertainty in the public regarding CAFO regulatory terminology and criteria. Although the document is not a rule, it did offer insight and furthered public understanding of previous rules.
In his 1998 Clean Water Action Plan, President Bill Clinton directed the USDA and the EPA to join forces to develop a framework for future actions to improve national water quality standards for public health. The two federal agencies' specific responsibility was to improve the management of animal waste runoff from agricultural activities. In 1998, the USDA and the EPA hosted eleven public meetings across the country to discuss animal feeding operations (AFOs).On March 9, 1999, the agencies released the framework titled the Unified National Strategy for Animal Feeding Operations. In the framework, the agencies recommended six major activities to be included in operations' Comprehensive Nutrient Management Plans (CNMPs):
feed management
manure handling and storage
land application of manure
land management
record keeping
activities that utilize manure.The framework also outlined two types of related programs. First, "voluntary programs" were designed to assist AFO operators with addressing public health and water quality problems. The framework outlines three types of voluntary programs available: "locally led conservation," "environmental education," and "financial and technical assistance." The framework explained that those that participate in voluntary programs are not required to have a comprehensive nutrient management plan (CNMP). The second type of program outlined by the framework was regulatory, which includes command-and-control regulation with NPDES permitting.
EPA final rule (2003)
EPA's 2003 rule updated decades-old policies to reflect new technology advancements and increase the expected pollution mitigation from CAFOs. The EPA was also responding to a 1991 court order based on the district court's decision in Natural Resources Defense Council v. Reilly. The final rule took effect on April 14, 2003, and responded to public comments received following the issuance of the proposed rule in 2000. The EPA allowed authorized NPDES states until February 2005 to update their programs and develop technical standards.The 2003 rule established "non-numerical best management practices" (BMPs) for CAFOs that apply both to the "production areas" (e.g. the animal confinement area and the manure storage area) and, for the first time ever, to the "land application area" (land to which manure and other animal waste is applied as fertilizer). The standards for BMPs in the 2003 rule vary depending on the regulated area of the CAFO:
Production Area: Discharges from a production area must meet a performance standard that requires CAFOs to "maintain waste containment structures that generally prohibit discharges except in the event of overflows or runoff resulting from a 25-year, 24-hour rainfall event." New sources are required to meet a standard of "no discharge" except in the event of a 100-year, 24-hour rainfall event.
Land Application Area: The BMPs for land application areas include different requirements, such as vegetative buffer strips and setback limits from water bodies.The 2003 rule also requires CAFOs to submit an annual performance report to the EPA and to develop and implement a comprehensive nutrient management plan (NMP) for handling animal waste. Lastly, in an attempt to broaden the scope of regulated facilities, the 2003 rule expanded the number of CAFOs required to apply for NPDES permits by making it mandatory for all CAFOs (not just those who actually discharge pollutants into waters of the United States). Many of the provisions of the rule were affected by the Second Circuit's decision issued in Waterkeeper Alliance v. EPA.
Waterkeeper Alliance v. EPA (2nd Cir. 2005)
Environmental and farm industry groups challenged the 2003 final rule in court, and the Second Circuit Court of Appeals issued a decision in the consolidated case Waterkeeper Alliance, Inc. v. EPA, 399 F.3d 486 (2nd Cir. 2005). The Second Circuit's decision reflected a "partial victory" for both environmentalists and industry, as all parties were "unsatisfied to at least some extent" with the court's decision. The court's decision addressed four main issues with the 2003 final rule promulgated by the EPA:
Agricultural Stormwater Discharges: The EPA's authority to regulate CAFO waste that results in agricultural stormwater discharge was one of the "most controversial" aspects of the 2003 rule. The issue centered on the scope of the Clean Water Act (CWA), which provides for the regulation only of "point sources." The term was defined by the CWA to expressly include CAFOs but exclude "agricultural stormwater." The EPA was thus forced to interpret the statutory definition to "identify the conditions under which discharges from the land application area of [waste from] a CAFO are point source discharges that are subject to NPDES permitting requirements, and those which are agricultural stormwater discharges and thus are not point source discharges." In the face of widely divergent views of environmentalists and industry groups, the EPA in the 2003 rule determined that any runoff resulting from manure applied in accordance with agronomic rates would be exempt from the CWA permitting requirements (as "agricultural stormwater"). However, when such agronomic rates are not used, the EPA concluded that the resulting runoff from a land application is not "agricultural stormwater" and is therefore subject to the CWA (as a discharge from a point source, i.e. the CAFO). The Second Circuit upheld the EPA's definition as a "reasonable" interpretation of the statutory language in the CWA.
Duty to Apply for an NPDES Permit: The 2003 EPA rule imposed a duty on all CAFOs to apply for an NPDES permit (or demonstrate that they had no potential to discharge). The rationale for this requirement was the EPA's "presumption that most CAFOs have a potential to discharge pollutants into waters of the United States" and therefore must affirmatively comply with the requirements of the Clean Water Act. The Second Circuit sided with the farm industry plaintiffs on this point and ruled that this portion of the 2003 rule exceeded the EPA's authority. The court held that the EPA can require NPDES permits only where there is an actual discharge by a CAFO, not just a potential to discharge. The EPA later estimated that 25 percent fewer CAFOs would seek permits as a result of the Second Circuit's decision on this issue.
Nutrient Management Plans (NMPs): The fight in court over the portion of the 2003 rule on NMPs was a proxy for a larger battle over public participation by environmental groups in the implementation of the CWA. The 2003 rule required all permitted CAFOs that "land apply" animal waste to develop an NMP that satisfied certain minimum requirements (e.g. ensuring proper storage of manure and process wastewater). A copy of the NMP was to be kept on-site at the facility, available for viewing by the EPA or other permitting authority. The environmental plaintiffs argued that this portion of the rule violated the CWA and the Administrative Procedure Act by failing to make the NMP part of the NPDES permit itself (which would make the NMP subject to both public comments and enforcement in court by private citizens). The court sided with the environmental plaintiffs and vacated this portion of the rule.
Effluent Limitation Guidelines (ELGs) for CAFOs: The 2003 rule issued New Source Performance Standards (NSPS) for new sources of swine, poultry, and veal operations. The CWA requires that NSPS be based on what is called the "best available demonstrated control technology." The EPA's 2003 rule required that these new sources meet a "no discharge" standard, except in the case of a 100-year, 24-hour rainfall event (or a less restrictive measure for new CAFOs that voluntarily use new technologies and management practices). The Second Circuit ruled that the EPA did not provide an adequate basis (either in the statute or in evidence) for this portion of the rule. The Second Circuit also required the EPA to go back and provide additional justification for the requirements in the 2003 rule dealing with the "best control technology for conventional pollutants" (BCT) standards for reducing fecal coliform pathogen. Lastly, the court ordered the EPA to provide additional analysis on whether the more stringent "water quality-based effluent permit limitations" (WQBELs) should be required in certain instances for CAFO discharges from land application areas, a policy that the EPA had rejected in the 2003 rule.
EPA final rule (2008)
The EPA published revised regulations that address the Second Circuit court's decision in Waterkeeper Alliance, Inc. v. EPA on November 20, 2008 (effective December 22, 2008). The 2008 final rule revised and amended the 2003 final rule.
The 2008 rule addresses each point of the court's decision in Waterkeeper Alliance v. EPA. Specifically, the EPA adopted the following measures:
The EPA replaced the "duty to apply" standard with one that requires NPDES permit coverage for any CAFO that "discharges or proposes to discharge." The 2008 rule specifies that "a CAFO proposes to discharge if it is designed, constructed, operated, or maintained such that a discharge will occur." On May 28, 2010, the EPA issued guidance "designed to assist permitting authorities in implementing the [CAFO regulations] by specifying the kinds of operations and factual circumstances that EPA anticipates may trigger the duty to apply for permits." On March 15, 2011, the Fifth Circuit Court of Appeals in National Pork Producers Council v. EPA again struck down the EPA's rule on this issue, holding that the "propose to discharge" standard exceeds the EPA's authority under the CWA. After the Fifth Circuit's ruling, a CAFO cannot be required to apply for an NPDES permit unless it actually discharges into a water of the United States.
The EPA modified the requirements related to the nutrient management plans (NMP). In keeping with the court's decision in Waterkeeper Alliance v. EPA, the EPA instituted a requirement that the permitting authority (either the EPA or the State) incorporate the enforceable "terms of the NMP" into the actual permit. The "terms of the NMP" include the "information, protocols, best management practices (BMPs) and other conditions in the NMP necessary to meet the NMP requirements of the 2003 rule." The EPA must make the NMPs in the applications filed by CAFOs publicly available.
The EPA reiterated that in order to take advantage of the "agricultural stormwater" exception (upheld by the court in Waterkeeper Alliance v. EPA) an unpermitted CAFO must still implement "site-specific nutrient management practices that ensure appropriate agricultural utilization of the nutrients as specified previously under the 2003 rule." The unpermitted facility must keep documentation of such practices and make it available to the permitting authority in the case of a precipitation-related discharge.
The EPA addressed the Second Circuit's ruling on the effluent limitation guidelines (ELGs) for CAFOs. The agency deleted the provision allowing new sources of CAFOs to meet a 100-year, 24-hour precipitation-event standard, replacing it with a "no discharge" standard through the establishment of best management practices. The EPA also clarified and defended its previous positions on (1) the availability of water quality-based effluent limitations (WQBELs) and (2) the appropriateness of the best control technology (BCT) standards for fecal coliform. First, the 2008 rule "explicitly recognizes" that the permitting authority may impose WQBELs on all production area discharges and all land application discharges (other than those that meet the "agricultural stormwater" exemption) if the technology-based effluent limitations are deemed insufficient to meet the water quality standards of a particular body of water. In particular, the EPA noted that a case-by-case review should be adopted in cases where CAFOs discharge to the waters of the United States through a direct hydrologic connection to groundwater. Second, the EPA announced that it would not be promulgating more stringent standards for fecal coliform than in the 2003 rule because it reached the conclusion there is "no available, achievable, and cost reasonable technology on which to base such limitations."The 2008 final rule also specifies two approaches that a CAFO may use to identify the "annual maximum rates of application of manure, litter, and process wastewater by field and crop for each year of permit coverage." The linear approach expresses the rate in terms of the "amount of nitrogen and phosphorus from manure, litter, and process wastewater allowed to be applied." The narrative rate approach expresses the amount in terms of a "narrative rate prescribing how to calculate the amount of manure, litter, and process wastewater allowed to be applied. The EPA believes that the narrative approach gives CAFO operators the most flexibility. Normally, CAFO operators are subject to the terms of their permit for a period of 5 years. Under the narrative approach, CAFO operators can use "real time" data to determine the rates of application. As a result, CAFO operators can more easily "change their crop rotation, form and source of manure, litter, and process wastewater, as well as the timing and method of application" without having to seek a revision to the terms of their NPDES permits.
Government assistance for compliance
The EPA points to several tools available to assist CAFO operators in meeting their obligations under the CWA. First, the EPA awards federal grants to provide technical assistance to livestock operators for preventing discharges of water pollution (and reducing air pollution). The EPA claims that CAFOs can obtain an NMP for free under these grants. Recently, the annual amount of the grant totaled $8 million. Second, a Manure Management Planner (MMP) software program has been developed by Purdue University in conjunction with funding by a federal grant. The MMP is tailored to each state's technical standards (including Phosphorus Indexes and other assessment tools). The MMP program provides free assistance to both permitting authorities and CAFO operators and can be found at the Purdue University website. Lastly, the EPA notes that the USDA offers a "range of support services," including a long-term program that aims to assist CAFOs with NMPs.
Debate over EPA policy
Environmentalists argue that the standards under the CWA are not strong enough. Researchers have identified regions in the country that have weak enforcement of regulations and, therefore, are popular locations for CAFO developers looking to reduce cost and expand operations without strict government oversight. Even when laws are enforced, there is the risk of environmental accidents. The massive 1995 manure spill in North Carolina highlights the reality that contamination can happen even when it is not done maliciously. The question of whether such a spill could have been avoided is a contributing factor in the debate for policy reform.
Environmental groups have criticized the EPA's regulation of CAFOs on several specific grounds, including the following.
Size threshold for "CAFO": Environmentalists favor reducing the size limits required to qualify as a CAFO; this would broaden the scope of the EPA's regulations on CAFOs to include more industry farming operations (currently classified as AFOs).
Duty to apply: Environmentalists strongly criticized the portion of the Court's ruling in Waterkeeper Alliance that deleted the EPA's 2003 rule that all CAFOs must apply for an NPDES permit. The EPA's revised permitted policy is now overly reactive, environmentalists maintain, because it "allow[s] CAFO operators to decide whether their situation poses enough risk of getting caught having a discharge to warrant the investment of time and resources in obtaining a permit." It is argued that CAFOs have very little incentive to seek an NPDES permit under the new rule.
Requirement for co-permitting entities that exercise "substantial operational control" over CAFOs: Environmental groups unsuccessfully petitioned the EPA to require "co-permitting of both the farmer who raises the livestock and the large companies that actually own the animals and contract with farmers." This modification to EPA regulations would have made the corporations legally responsible for the waste produced on the farms with which they contract.
Zero discharge requirement to groundwater when a direct hydrologic connection exists to surface water: The EPA omitted a provision in its 2003 rule that would have held CAFOs to a zero discharge limit from the CAFO's production area to "ground water that has a direct hydrologic connection to surface water." Environmentalists criticized the EPA's decision to omit this provision on the basis that ground water is often a drinking source in rural areas, where most all CAFOs are located.
Specific performance standards: Environmentalists urged the EPA to phase out the use of lagoons (holding animal waste in pond-like structures) and sprayfields (spraying waste onto crops). Environmentalists argued that these techniques for dealing with animal waste were outmoded and present an "unacceptable risk to public health and the environment" due to their ability to pollute both surface and groundwater following "weather events, human error, and system failures." Environmentalists suggested that whenever manure is land applied that it should be injected into the soil (and not sprayed).
Lack of regulation of air pollution: The revisions to the EPA's rules under the CWA did not address air pollutants. Environmentalists maintain that the air pollutants from CAFOs—which include ammonia, hydrogen sulfide, methane, volatile organic compounds, and particulate matter—should be subject to EPA regulation.Conversely, industry groups criticize the EPA's rules as overly stringent. Industry groups vocally opposed the requirement in the 2008 rule (since struck down by the Fifth Circuit) that required CAFOs to seek a permit if they "propose to discharge" into waters of the United States. Generally speaking, the farm industry disputes the presumption that CAFOs do discharge pollutants and it therefore objects to the pressure that the EPA places on CAFOs to voluntarily seek an NPDES permit. As a starting point, farm industry groups "emphasize that most farmers are diligent stewards of the environment, since they depend on natural resources of the land, water, and air for their livelihoods and they, too, directly experience adverse impacts on water and air quality." Some of the agricultural industry groups continue to maintain that the EPA should have no authority to regulate any of the runoff from land application areas because they believe this constitutes a nonpoint source that is outside the scope of the CWA. According to this viewpoint, voluntary programs adequately address any problems with excess manure.
States' role and authority
The role of the federal government in environmental issues is generally to set national guidelines and the state governments' role is to address specific issues. The framework of federal goals is as such that the responsibility to prevent, reduce, and eliminate pollution are the responsibility of the states.The management of water and air standards follows this authoritative structure. States that have been authorized by the EPA to directly issue permits under NPDES (also known as "NPDES states") have received jurisdiction over CAFOs. As a result of this delegation of authority from the EPA, CAFO permitting procedures and standards may vary from state to state.
Specifically for water pollution, the federal government establishes federal standards for wastewater discharge and authorized states develop their own wastewater policies to fall in compliance. More specifically, what a state allows an individual CAFO to discharge must be as strict or stricter than the federal government's standard. This protection includes all waterways, whether or not the water body can safely sustain aquatic life or house public recreational activities. Higher standards are upheld in some cases of pristine publicly owned waterways, such as parks. They keep higher standards in order to maintain the pristine nature of the environment for preservation and recreation. Exceptions are in place for lower water quality standards in certain waterways if it is deemed economically significant. These policy patterns are significant when considering the role of state governments' in CAFO permitting.
State versus federal permit issuance
Federal law requires CAFOs to obtain NPDES permits before wastewater may be discharged from the facility. The state agency responsible for approving permits for CAFOs in a given state is dependent on the authorization of that state. The permitting process is divided into two main methods based on a state's authorization status. As of 2018, EPA has authorized 47 states to issue NPDES permits. Although they have their own state-specific permitting standards, permitting requirements in authorized states must be at least as stringent as the federal standards.: 13 In the remaining states and territories, an EPA regional office issues NPDES permits.
Permitting process
A state's authority and the state's environmental regulatory framework will determine the permit process and the state offices involved. Below are two examples of states' permitting organization.
Authorized state case study: Arizona
Arizona issues permits through a general permitting process. CAFOs must obtain both a general Arizona Pollutant Discharge Elimination System (AZPDES) Permit and a general Aquifer Protection Permit. The Arizona state agency tasked with managing permitting is the Arizona Department of Environmental Quality (ADEQ).
For the Aquifer Protection Permit, CAFOs are automatically permitted if they comply with the state's BMP outlined in the relevant state rule, listed on the ADEQ's website. Their compliance is evaluated through agency CAFO Inspection Program's onsite inspections. If a facility is found to be unlawfully discharging, then the agency may issue warnings and, if necessary, file suit against the facility. For the AZPDES permit, CAFOs are required to submit a Notice of Intent to the ADEQ. In addition, they must complete and submit a Nutrient Management Plan (NMP) for the state's annual report.Even in an authorized state, the EPA maintains oversight of state permitting programs. This would be most likely to happen in the event that a complaint is filed with the EPA by a third party. For instance, in 2008, Illinois Citizens for Clean Air & Water filed a complaint with the EPA arguing that the state was not properly implementing its CAFO permitting program. The EPA responded with an "informal" investigation. In a report released in 2010, the agency sided with the environmental organization and provided a list of recommendations and required action for the state to meet.
Unauthorized state case study: Massachusetts
In unauthorized states, the EPA has the authority for issuing NPDES permits. In these states, such as Massachusetts, CAFOs communicate and file required documentation through an EPA regional office. In Massachusetts, the EPA issues a general permit for the entire state. The state's Department of Agricultural Resources (MDAR) has an agreement with the EPA for the implementation of CAFO rules. MDAR's major responsibility is educational. The agency assists operators in determining if their facility qualifies as a CAFO. Specifically they do onsite evaluations of facilities, provide advice on best practices, and provide information and technical assistance.If a state has additional state specific rules for water quality standards, the state government maintains the authority for permitting. For instance, New Mexico, also unauthorized, requires CAFOs and AFOs to obtain a Groundwater Permit if the facilities discharge waste in a manner that might affect local groundwater. The EPA is not involved in the issuing of this state permit. Massachusetts, however, does not have additional state permit requirements.
Zoning ordinances
State planning laws and local zoning ordinances represent the main policy tools for regulating land use. Many states have passed legislation that specifically exempt CAFOs (and other agricultural entities) from zoning regulations. The promulgation of so-called "right to farm" statutes have provided, in some instances, a shield from liability for CAFOs (and other potential nuisances in agricultural). More specifically, the right-to-farm statutes seek to "limit the circumstances under which agricultural operations can be deemed nuisances."
The history of these agricultural exemptions dates back to the 1950s. Right-to-farm statutes expanded in the 1970s when state legislatures became increasingly sensitive to the loss of rural farmland to urban expansion. The statutes were enacted at a time when CAFOs and "modern confinement operations did not factor into legislator's perceptions of the beneficiaries of [the] generosity" of such statutes. Forty-three (43) states now have some sort of statutory protection for farmers from nuisance. Some of these states (such as Iowa, Oklahoma, Wyoming, Tennessee, and Kansas) also provide specific protection to animal feeding operations (AFOs) and CAFOs. Right-to-farm statutes vary in form. Some states, for instance, require agricultural operation be located "within an acknowledged and approved agricultural district" in order to receive protection; other states do not.Opponents of CAFOs have challenged right-to-farm statutes in court, and the constitutionality of such statutes is not entirely clear. The Iowa Supreme Court, for instance, in 1998 struck down a right-to-farm statute as a "taking" (in violation of the 5th and 14th Amendments of the U.S. Constitution) because the statute stripped neighboring landowners of property rights without compensation.As of February 2023, 85 Iowa counties, the majority of Iowa counties, had passed a "Construction Evaluation Resolution"; pursuant to Iowa Code section 459 only counties which have adopted such a "construction evaluation resolution" can submit to the Iowa Department of Natural Resources a recommendation to approve or disapprove a construction permit application regarding a proposed confinement feeding operation which the board of supervisors received between February 1, 2023, and January 31, 2024.
Regulation under the Clean Air Act
CAFOs are potentially subject to regulation under the Clean Air Act (CAA), but the emissions from CAFOs generally do not exceed established statutory thresholds. In addition, the EPA's regulations do not provide a clear methodology for measuring emissions from CAFOs, which has "vexed both regulators and the industry." Negotiations between the EPA and the agricultural industry did, however, result in an Air Compliance Agreement in January 2005. According to the agreement, certain animal feeding operations (AFOs) received a covenant not to sue from the EPA in exchange for payment of a civil penalty for past violations of the CAA and an agreement to allow their facilities to be monitored for a study on air pollution emissions in the agricultural sector. Results and analysis of the EPA's study are scheduled to be released later in 2011.Environmental groups have formally proposed to tighten EPA regulation of air pollution from CAFOs. A coalition of environmental groups petitioned the EPA on April 6, 2011, to designate ammonia as a "criteria pollutant" and establish National Ambient Air Quality Standards (NAAQS) for ammonia from CAFOs. The petition alleges that "CAFOs are leading contributors to the nation's ammonia inventory; by one EPA estimate livestock account for approximately 80 percent of total emissions. CAFOs also emit a disproportionately large share of the ammonia in certain states and communities." If the EPA adopts the petition, CAFOs and other sources of ammonia would be subject to the permitting requirements of the CAA.
See also
Animal feeding operation
Golden Triangle of Meat-packing
Intensive animal farming
Intensive pig farming
Notes
== References == |
extensive farming | Extensive farming or extensive agriculture (as opposed to intensive farming) is an agricultural production system that uses small inputs of labour, fertilizers, and capital, relative to the land area being farmed.
Systems
Extensive farming most commonly means raising sheep and cattle in areas with low agricultural productivity, but includes large-scale growing of wheat, barley, cooking oils and other grain crops in areas like the Murray-Darling Basin in Australia. Here, owing to the extreme age and poverty of the soils, yields per hectare are very low, but the flat terrain and very large farm sizes mean yields per unit of labour are high. Nomadic herding is an extreme example of extensive farming, where herders move their animals to use feed from occasional sunlight.
Geography
Extensive farming is found in the mid-latitude sections of most continents, as well as in desert regions where water for cropping is not available. The nature of extensive farming means it requires less rainfall than intensive farming. The farm is usually large in comparison with the numbers working and money spent on it. In 1957, most parts of Western Australia had pastures so poor that only one sheep to the square mile could be supported Just as the demand has led to the basic division of cropping and pastoral activities, these areas can also be subdivided depending on the region's rainfall, vegetation type and agricultural activity within the area and the many other parentheses related to this data.
Advantages
Extensive farming has a number of advantages over intensive farming:
Less labour per unit areas is required to farm large areas, especially since expensive alterations to land (like terracing) are completely absent.
Mechanisation can be used more effectively over large, flat areas.
Greater efficiency of labour means generally lower product prices.
Animal welfare is generally improved because animals are not kept in stifling conditions.
Lower requirements of inputs such as fertilizers.
If animals are grazed on grassland native to the locality, there is less likely to be problems with exotic species.
Local environment and soil are not damaged by overuse of chemicals.
The use of machinery and scientific methods of farming produce a large quantity of crops.
Animals bred in larger areas develop more efficiently.
Disadvantages
Extensive farming can have the following problems:
Yields tend to be much lower than with intensive farming in the short term.
Large land requirements limit the habitat of wild species (in some cases, even very low stocking rates can be dangerous), as is the case with intensive farming.Extensive farming was once thought to produce more methane and nitrous oxide per kg of milk than intensive farming.
One study estimated that the carbon "footprint" per billion kg (2.2 billion lb.) of milk produced in 2007 was 37 percent that of equivalent milk production in 1944. However, a more recent study by Centre de coopération internationale en recherche agronomique pour le développement found that extensive livestock systems impact the environment less than intensive systems.
See also
Dehesa in Spain, or montado in Portugal, with cork oak and Black Iberian pig.
Herding
Pastoralism
Polyculture
Ranching
Slash-and-burn agriculture
Taungya in Myanmar
Transhumance
== References == |
united nations conference on the human environment | The United Nations Conference on the Human Environment was held in Stockholm, Sweden, during June 5–16, 1972.
When the United Nations General Assembly decided to convene the 1972 Stockholm Conference, taking up the offer of the Government of Sweden to host it, UN Secretary-General U Thant invited Maurice Strong to lead it as Secretary-General of the Conference, as the Canadian diplomat (under Pierre Trudeau) had initiated and already worked for over two years on the project.The United Nations Environment Programme (UNEP) was created as a result of this conference.
Introduction
Sweden first suggested to the United Nations Economic and Social Council ECOSOC in 1968 the idea of having a UN conference to focus on human interactions with the environment. ECOSOC passed resolution 1346 supporting the idea. General Assembly Resolution 2398 in 1969 decided to convene a conference in 1972 and mandated a set of reports from the UN secretary-general suggesting that the conference focus on "stimulating and providing guidelines for action by national government and international organizations" facing environmental issues. Preparations for the conference were extensive, lasting four years, including 114 governments, and costing over $30,000,000.
Issues at the Conference
The Soviet Union and other Warsaw Pact nations boycotted the conference due to the lack of inclusion of East Germany, which was not allowed to participate. Neither East or West Germany were members of the UN at that time, as they had not yet accepted each other as states (which they agreed upon later by signing the Basic Treaty in December 1972).The conference was not welcomed by countries like Britain, the US, Italy, Belgium, the Netherlands and France, which formed the so-called Brussels Group and attempted to stifle the impact of the conference.At the conference itself, divisions between developed and developing countries began to emerge. The Chinese delegation issued a 17-point memorandum condemning United States policies in Indochina, as well as around the world. This stance emboldened other developing countries, which made up 70 of the 122 countries attending. Multiple countries including Pakistan, Peru, and Chile issued statements that were anti-colonial in nature, further worrying the United States delegation. So harsh was the criticism that Rogers Morton, at that time secretary of the interior, remarked "I wish the Russians were here", to divert the attention of the Chinese criticisms. China being a new member of the United Nations did not take part in the preparational talks. To include their views they reopened at the conference the declaration, which was negotiated at the preparational talks, introducing text to counter language of the declaration regarding population as a threat to the environment and cause of its degradation.In 1972, environmental governance was not seen as an international priority, particularly for the Global South. Developing nations supported the creation of the UNEP, not because they supported environmental governance, but because of its headquarters' location in Nairobi, Kenya, as the UNEP would be the first UN agency to be based in a developing country.
Stockholm Declaration
The meeting agreed upon a Declaration containing 26 principles concerning the environment and development, an Action Plan with 109 recommendations, and a Resolution.Principles of the Stockholm Declaration:
Human rights must be asserted, apartheid and colonialism condemned
Natural resources must be safeguarded
The Earth's capacity to produce renewable resources must be maintained
Wildlife must be safeguarded
Non-renewable resources must be shared and not exhausted
Pollution must not exceed the environment's capacity to clean itself
Damaging oceanic pollution must be prevented
Development is needed to improve the environment
Developing countries therefore need assistance
Developing countries need reasonable prices for exports to carry out environmental management
Environment policy must not hamper development
Developing countries need money to develop environmental safeguards
Integrated development planning is needed
Rational planning should resolve conflicts between environment and development
Human settlements must be planned to eliminate environmental problems
Governments should plan their own appropriate population policies
National institutions must plan development of states' natural resources
Science and technology must be used to improve the environment
Environmental education is essential
Environmental research must be promoted, particularly in developing countries
States may exploit their resources as they wish but must not endanger others
Compensation is due to states thus endangered
Each nation must establish its own standards
There must be cooperation on international issues
International organizations should help to improve the environment
Weapons of mass destruction must be eliminatedOne of the seminal issues that emerged from the conference is the recognition for poverty alleviation for protecting the environment. The Indian Prime Minister Indira Gandhi in her seminal speech in the conference brought forward the connection between ecological management and poverty alleviation.The Stockholm Conference motivated countries around the world to monitor environmental conditions as well as to create environmental ministries and agencies. Despite these institutional accomplishments, including the establishment of UNEP, the failure to implement most of its action programme has prompted the UN to have follow-up conferences. The succeeding United Nations Conference on Environment and Development convened in Rio de Janeiro in 1992 (the Rio Earth Summit), the 2002 World Summit on Sustainable Development in Johannesburg and the 2012 United Nations Conference on Sustainable Development (Rio+20) all take their starting point in the declaration of the Stockholm Conference.
Some argue that this conference, and more importantly the scientific conferences preceding it, had a real impact on the environmental policies of the European Community (that later became the European Union). For example, in 1973, the EU created the Environmental and Consumer Protection Directorate, and composed the first Environmental Action Program. Such increased interest and research collaboration arguably paved the way for further understanding of global warming, which has led to such agreements as the Kyoto Protocol and the Paris Agreement, and has given a foundation of modern environmentalism.
50 years after
In 2022 a report called "Stockholm+50: Unlocking a Better Future" was published by a team of scientists, analyzing the changes made from the United Nations Conference on the Human Environment in 1972 and giving recommendations for the future. The key messages are; "Redefine the relationship between humans and nature, achieve lasting prosperity for all, and invest in a better future." In addition, youth researchers issued a youth version of the report, called: "Charting a Youth Vision for a Just and Sustainable Future" also making some recommendations. The key messages are: "Health well being and communal solidarity, living in harmony with nature, international solidarity-living as one global family, a world when all humans are equal."
See also
Earth Summit 1992
Earth Summit 2002
Johannesburg Declaration
Habitat International Coalition
United Nations Climate Change Conference 2009
United Nations Conference on Sustainable Development
Minamata and Minamata disease
World Environment Day
References
Further reading
David Larsson Heidenblad. 2021. The Environmental Turn in Postwar Sweden: A New History of Knowledge. Lund University Press.
John McCormick, The Global Environmental Movement (London: John Wiley, 1995).
Schulz-Walden, Thorsten (2013): Anfänge globaler Umweltpolitik. Umweltsicherheit in der internationalen Politik (1969–1975), Oldenbourg Verlag, München, ISBN 978-3-486-72362-5 [Rezension bei: Thorsten Schulz-Walden: Anfänge globaler Umweltpolitik. Umweltsicherheit in der internationalen Politik (1969–1975). München 2013. - H-Soz-u-Kult / Comptes rendus / Livres]
Felix Dodds, Maurice Strong and Michael Strauss Only One Earth: The Long Road via Rio to Sustainable Development (London, Earthscan, 2012)
External links
Works related to Declaration of the United Nations Conference on the Human Environment at Wikisource
Declaration of the United Nations Conference on the Human Environment - full text at the Library of Congress Web Archives (archived 2015-03-14)
Introductory note by Günther Handl, procedural history note and audiovisual material on the Declaration of the United Nations Conference on the Human Environment (Stockholm Declaration) in the Historic Archives of the United Nations Audiovisual Library of International Law
Report from the United Nations Conference on the Human Environment held in Stockholm, 1972 |
deforestation | Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, with half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute.The overwhelming direct cause of deforestation is agriculture. More than 80% of deforestation was attributed to agriculture in 2018. Forests are being converted to plantations for coffee, tea, palm oil, rice, rubber, and various other popular products. Livestock ranching is another agricultural activity that drives deforestation. Further drivers are the wood industry (logging), economic development in general (for example urbanization), mining. The effects of climate change are another cause via the increased risk of wildfires.
Deforestation has resulted in habitat damage, biodiversity loss, and aridity. Deforestation also causes extinction, changes to climatic conditions, desertification, and displacement of populations, as observed by current conditions and in the past through the fossil record. Deforestation also reduces biosequestration of atmospheric carbon dioxide, increasing negative feedback cycles contributing to global warming. Global warming also puts increased pressure on communities who seek food security by clearing forests for agricultural use and reducing arable land more generally. Deforested regions typically incur significant other environmental effects such as adverse soil erosion and degradation into wasteland.
The resilience of human food systems and their capacity to adapt to future change is linked to biodiversity – including dryland-adapted shrub and tree species that help combat desertification, forest-dwelling insects, bats and bird species that pollinate crops, trees with extensive root systems in mountain ecosystems that prevent soil erosion, and mangrove species that provide resilience against flooding in coastal areas. With climate change exacerbating the risks to food systems, the role of forests in capturing and storing carbon and mitigating climate change is important for the agricultural sector.
Definition
Deforestation is defined as the conversion of forest to other land uses (regardless of whether it is human-induced).Deforestation and forest area net change are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a given period. Net change, therefore, can be positive or negative, depending on whether gains exceed losses, or vice versa.
Current status
The FAO estimates that the global forest carbon stock has decreased 0.9%, and tree cover 4.2% between 1990 and 2020.: 16, 52
As of 2019 there is still disagreement about whether the global forest is shrinking or not: "While above-ground biomass carbon stocks are estimated to be declining in the tropics, they are increasing globally due to increasing stocks in temperate and boreal forest.: 385 Deforestation in many countries—both naturally occurring and human-induced—is an ongoing issue. Between 2000 and 2012, 2.3 million square kilometres (890,000 sq mi) of forests around the world were cut down. Deforestation and forest degradation continue to take place at alarming rates, which contributes significantly to the ongoing loss of biodiversity.
Deforestation is more extreme in tropical and subtropical forests in emerging economies. More than half of all plant and land animal species in the world live in tropical forests. As a result of deforestation, only 6.2 million square kilometres (2.4 million square miles) remain of the original 16 million square kilometres (6 million square miles) of tropical rainforest that formerly covered the Earth. An area the size of a football pitch is cleared from the Amazon rainforest every minute, with 136 million acres (55 million hectares) of rainforest cleared for animal agriculture overall. More than 3.6 million hectares of virgin tropical forest was lost in 2018.The global annual net loss of trees is estimated to be approximately 10 billion. According to the Global Forest Resources Assessment 2020 the global average annual deforested land in the 2015–2020 demi-decade was 10 million hectares and the average annual forest area net loss in the 2000–2010 decade was 4.7 million hectares. The world has lost 178 million ha of forest since 1990, which is an area about the size of Libya.An analysis of global deforestation patterns in 2021 showed that patterns of trade, production, and consumption drive deforestation rates in complex ways. While the location of deforestation can be mapped, it does not always match where the commodity is consumed. For example, consumption patterns in G7 countries are estimated to cause an average loss of 3.9 trees per person per year. In other words, deforestation can be directly related to imports—for example, coffee.
Rates of deforestation
Global deforestation sharply accelerated around 1852. As of 1947, the planet had 15 million to 16 million km2 (5.8 million to 6.2 million sq mi) of mature tropical forests, but by 2015, it was estimated that about half of these had been destroyed. Total land coverage by tropical rainforests decreased from 14% to 6%. Much of this loss happened between 1960 and 1990, when 20% of all tropical rainforests were destroyed. At this rate, extinction of such forests is projected to occur by the mid-21st century.In the early 2000s, some scientists predicted that unless significant measures (such as seeking out and protecting old growth forests that have not been disturbed) are taken on a worldwide basis, by 2030 there will only be 10% remaining, with another 10% in a degraded condition. 80% will have been lost, and with them hundreds of thousands of irreplaceable species.Estimates vary widely as to the extent of deforestation in the tropics. In 2019, the world lost nearly 12 million hectares of tree cover. Nearly a third of that loss, 3.8 million hectares, occurred within humid tropical primary forests, areas of mature rainforest that are especially important for biodiversity and carbon storage. This is equivalent to losing an area of primary forest the size of a football pitch every six seconds.
Rates of change
A 2002 analysis of satellite imagery suggested that the rate of deforestation in the humid tropics (approximately 5.8 million hectares per year) was roughly 23% lower than the most commonly quoted rates. A 2005 report by the United Nations Food and Agriculture Organization (FAO) estimated that although the Earth's total forest area continued to decrease at about 13 million hectares per year, the global rate of deforestation had been slowing. On the other hand, a 2005 analysis of satellite images reveals that deforestation of the Amazon rainforest is twice as fast as scientists previously estimated.From 2010 to 2015, worldwide forest area decreased by 3.3 million ha per year, according to FAO. During this five-year period, the biggest forest area loss occurred in the tropics, particularly in South America and Africa. Per capita forest area decline was also greatest in the tropics and subtropics but is occurring in every climatic domain (except in the temperate) as populations increase.An estimated 420 million ha of forest has been lost worldwide through deforestation since 1990, but the rate of forest loss has declined substantially. In the most recent five-year period (2015–2020), the annual rate of deforestation was estimated at 10 million ha, down from 12 million ha in 2010–2015.
Africa had the largest annual rate of net forest loss in 2010–2020, at 3.9 million ha, followed by South America, at 2.6 million ha. The rate of net forest loss has increased in Africa in each of the three decades since 1990. It has declined substantially in South America, however, to about half the rate in 2010–2020 compared with 2000–2010. Asia had the highest net gain of forest area in 2010–2020, followed by Oceania and Europe. Nevertheless, both Europe and Asia recorded substantially lower rates of net gain in 2010–2020 than in 2000–2010. Oceania experienced net losses of forest area in the decades 1990–2000 and 2000–2010.Some claim that rainforests are being destroyed at an ever-quickening pace. The London-based Rainforest Foundation notes that "the UN figure is based on a definition of forest as being an area with as little as 10% actual tree cover, which would therefore include areas that are actually savanna-like ecosystems and badly damaged forests". Other critics of the FAO data point out that they do not distinguish between forest types, and that they are based largely on reporting from forestry departments of individual countries, which do not take into account unofficial activities like illegal logging. Despite these uncertainties, there is agreement that destruction of rainforests remains a significant environmental problem.
The rate of net forest loss declined from 7.8 million ha per year in the decade 1990–2000 to 5.2 million ha per year in 2000–2010 and 4.7 million ha per year in 2010–2020. The rate of decline of net forest loss slowed in the most recent decade due to a reduction in the rate of forest expansion.
Reforestation and afforestation
In many parts of the world, especially in East Asian countries, reforestation and afforestation are increasing the area of forested lands. The amount of forest has increased in 22 of the world's 50 most forested nations. Asia as a whole gained 1 million hectares of forest between 2000 and 2005. Tropical forest in El Salvador expanded more than 20% between 1992 and 2001. Based on these trends, one study projects that global forestation will increase by 10%—an area the size of India—by 2050. 36% of globally planted forest area is in East Asia - around 950,000 square kilometers. From those 87% are in China.
Status by region
Rates of deforestation vary around the world. Up to 90% of West Africa's coastal rainforests have disappeared since 1900. Madagascar has lost 90% of its eastern rainforests. In South Asia, about 88% of the rainforests have been lost.Mexico, India, the Philippines, Indonesia, Thailand, Burma, Malaysia, Bangladesh, China, Sri Lanka, Laos, Nigeria, the Democratic Republic of the Congo, Liberia, Guinea, Ghana and the Ivory Coast, have lost large areas of their rainforest.
Much of what remains of the world's rainforests is in the Amazon basin, where the Amazon Rainforest covers approximately 4 million square kilometres. Some 80% of the deforestation of the Amazon can be attributed to cattle ranching, as Brazil is the largest exporter of beef in the world. The Amazon region has become one of the largest cattle ranching territories in the world. The regions with the highest tropical deforestation rate between 2000 and 2005 were Central America—which lost 1.3% of its forests each year—and tropical Asia. In Central America, two-thirds of lowland tropical forests have been turned into pasture since 1950 and 40% of all the rainforests have been lost in the last 40 years. Brazil has lost 90–95% of its Mata Atlântica forest. Deforestation in Brazil increased by 88% for the month of June 2019, as compared with the previous year. However, Brazil still destroyed 1.3 million hectares in 2019. Brazil is one of several countries that have declared their deforestation a national emergency.Paraguay was losing its natural semi-humid forests in the country's western regions at a rate of 15,000 hectares at a randomly studied 2-month period in 2010. In 2009, Paraguay's parliament refused to pass a law that would have stopped cutting of natural forests altogether.As of 2007, less than 50% of Haiti's forests remained.From 2015 to 2019, the rate of deforestation in the Democratic Republic of the Congo doubled. In 2021, deforestation of the Congolese rainforest increased by 5%.The World Wildlife Fund's ecoregion project catalogues habitat types throughout the world, including habitat loss such as deforestation, showing for example that even in the rich forests of parts of Canada such as the Mid-Continental Canadian forests of the prairie provinces half of the forest cover has been lost or altered.
In 2011, Conservation International listed the top 10 most endangered forests, characterized by having all lost 90% or more of their original habitat, and each harboring at least 1500 endemic plant species (species found nowhere else in the world).As of 2015, it is estimated that 70% of the world's forests are within one kilometer of a forest edge, where they are most prone to human interference and destruction.
By country
Deforestation in particular countries:
Causes
Agricultural expansion continues to be the main driver of deforestation and forest fragmentation and the associated loss of forest biodiversity. Large-scale commercial agriculture (primarily cattle ranching and cultivation of soya bean and oil palm) accounted for 40 percent of tropical deforestation between 2000 and 2010, and local subsistence agriculture for another 33 percent. Trees are cut down for use as building material, timber or sold as fuel (sometimes in the form of charcoal or timber), while cleared land is used as pasture for livestock and agricultural crops.
The vast majority of agricultural activity resulting in deforestation is subsidized by government tax revenue. Disregard of ascribed value, lax forest management, and deficient environmental laws are some of the factors that lead to large-scale deforestation.
The types of drivers vary greatly depending on the region in which they take place. The regions with the greatest amount of deforestation for livestock and row crop agriculture are Central and South America, while commodity crop deforestation was found mainly in Southeast Asia. The region with the greatest forest loss due to shifting agriculture was sub-Saharan Africa.
Agriculture
The overwhelming direct cause of deforestation is agriculture. Subsistence farming is responsible for 48% of deforestation; commercial agriculture is responsible for 32%; logging is responsible for 14%, and fuel wood removals make up 5%.More than 80% of deforestation was attributed to agriculture in 2018. Forests are being converted to plantations for coffee, tea, palm oil, rice, rubber, and various other popular products. The rising demand for certain products and global trade arrangements causes forest conversions, which ultimately leads to soil erosion. The top soil oftentimes erodes after forests are cleared which leads to sediment increase in rivers and streams.
Most deforestation also occurs in tropical regions. The estimated amount of total land mass used by agriculture is around 38%.Since 1960, roughly 15% of the Amazon has been removed with the intention of replacing the land with agricultural practices. It is no coincidence that Brazil has recently become the world's largest beef exporter at the same time that the Amazon rainforest is being clear cut.Another prevalent method of agricultural deforestation is slash-and-burn agriculture, which was primarily used by subsistence farmers in tropical regions but has now become increasingly less sustainable. The method does not leave land for continuous agricultural production but instead cuts and burns small plots of forest land which are then converted into agricultural zones. The farmers then exploit the nutrients in the ashes of the burned plants. As well as, intentionally set fires can possibly lead to devastating measures when unintentionally spreading fire to more land, which can result in the destruction of the protective canopy.The repeated cycle of low yields and shortened fallow periods eventually results in less vegetation being able to grow on once burned lands and a decrease in average soil biomass. In small local plots sustainability is not an issue because of longer fallow periods and lesser overall deforestation. The relatively small size of the plots allowed for no net input of CO2 to be released.
Livestock ranching
Consumption and production of beef is the primary driver of deforestation in the Amazon, with around 80% of all converted land being used to rear cattle. 91% of Amazon land deforested since 1970 has been converted to cattle ranching.Livestock ranching requires large portions of land to raise herds of animals and livestock crops for consumer needs. According to the World Wildlife Fund, "Extensive cattle ranching is the number one culprit of deforestation in virtually every Amazon country, and it accounts for 80% of current deforestation."The cattle industry is responsible for a significant amount of methane emissions since 60% of all mammals on earth are livestock cows. Replacing forest land with pastures creates a loss of forest stock, which leads to the implication of increased greenhouse gas emissions by burning agriculture methodologies and land-use change.
Wood industry
A large contributing factor to deforestation is the lumber industry. A total of almost 4 million hectares (9.9×10^6 acres) of timber, or about 1.3% of all forest land, is harvested each year. In addition, the increasing demand for low-cost timber products only supports the lumber company to continue logging.Experts do not agree on whether industrial logging is an important contributor to global deforestation. Some argue that poor people are more likely to clear forest because they have no alternatives, others that the poor lack the ability to pay for the materials and labour needed to clear forest.
Economic development
Other causes of contemporary deforestation may include corruption of government institutions, the inequitable distribution of wealth and power, population growth and overpopulation, and urbanization. The impact of population growth on deforestation has been contested. One study found that population increases due to high fertility rates were a primary driver of tropical deforestation in only 8% of cases. In 2000 the United Nations Food and Agriculture Organization (FAO) found that "the role of population dynamics in a local setting may vary from decisive to negligible", and that deforestation can result from "a combination of population pressure and stagnating economic, social and technological conditions".Globalization is often viewed as another root cause of deforestation, though there are cases in which the impacts of globalization (new flows of labor, capital, commodities, and ideas) have promoted localized forest recovery.
The degradation of forest ecosystems has also been traced to economic incentives that make forest conversion appear more profitable than forest conservation. Many important forest functions have no markets, and hence, no economic value that is readily apparent to the forests' owners or the communities that rely on forests for their well-being. From the perspective of the developing world, the benefits of forest as carbon sinks or biodiversity reserves go primarily to richer developed nations and there is insufficient compensation for these services. Developing countries feel that some countries in the developed world, such as the United States of America, cut down their forests centuries ago and benefited economically from this deforestation, and that it is hypocritical to deny developing countries the same opportunities, i.e. that the poor should not have to bear the cost of preservation when the rich created the problem.Some commentators have noted a shift in the drivers of deforestation over the past 30 years. Whereas deforestation was primarily driven by subsistence activities and government-sponsored development projects like transmigration in countries like Indonesia and colonization in Latin America, India, Java, and so on, during the late 19th century and the first half of the 20th century, by the 1990s the majority of deforestation was caused by industrial factors, including extractive industries, large-scale cattle ranching, and extensive agriculture. Since 2001, commodity-driven deforestation, which is more likely to be permanent, has accounted for about a quarter of all forest disturbance, and this loss has been concentrated in South America and Southeast Asia.As the human population grows, new homes, communities, and expansions of cities will occur, leading to an increase in roads to connect these communities. Rural roads promote economic development but also facilitate deforestation. About 90% of the deforestation has occurred within 100 km of roads in most parts of the Amazon.The European Union is one of the largest importer of products made from illegal deforestation.Some have argued that deforestation trends may follow a Kuznets curve, which if true would nonetheless fail to eliminate the risk of irreversible loss of non-economic forest values (for example, the extinction of species).
Mining
The importance of mining as a cause of deforestation increased quickly in the beginning the 21st century, among other because of increased demand for minerals. The direct impact of mining is relatively small, but the indirect impacts are much more significant. More than a third of the earth's forests are possibly impacted, at some level and in the years 2001-2021, "755,861 km2... ...had been deforested by causes indirectly related to mining activities alongside other deforestation drivers (based on data from WWF)"
Climate change
Another cause of deforestation is due to the effects of climate change: More wildfires, insect outbreaks, invasive species, and more frequent extreme weather events (such as storms) are factors that increase deforestation.A study suggests that "tropical, arid and temperate forests are experiencing a significant decline in resilience, probably related to increased water limitations and climate variability" which may shift ecosystems towards critical transitions and ecosystem collapses. By contrast, "boreal forests show divergent local patterns with an average increasing trend in resilience, probably benefiting from warming and CO2 fertilization, which may outweigh the adverse effects of climate change". It has been proposed that a loss of resilience in forests "can be detected from the increased temporal autocorrelation (TAC) in the state of the system, reflecting a decline in recovery rates due to the critical slowing down (CSD) of system processes that occur at thresholds".23% of tree cover losses result from wildfires and climate change increase their frequency and power. The rising temperatures cause massive wildfires especially in the Boreal forests. One possible effect is the change of the forest composition. Deforestation can also cause forests to become more fire prone through mechanisms such as logging.
Military causes
Operations in war can also cause deforestation. For example, in the 1945 Battle of Okinawa, bombardment and other combat operations reduced a lush tropical landscape into "a vast field of mud, lead, decay and maggots".Deforestation can also result from the intentional tactics of military forces. Clearing forests became an element in the Russian Empire's successful conquest of the Caucasus in the mid-19th century.
The British (during the Malayan Emergency) and the United States (in the Korean War and in the Vietnam War) used defoliants (like Agent Orange or others). The destruction of forests in Vietnam War is one of the most commonly used examples of ecocide, including by Swedish Prime Minister Olof Palme, lawyers, historians and other academics.
Impacts
On atmosphere and climate
Deforestation is a contributor to climate change. It is often cited as one of the major causes of the enhanced greenhouse effect. Recent calculations suggest that CO2 emissions from deforestation and forest degradation (excluding peatland emissions) contribute about 12% of total anthropogenic CO2 emissions, with a range from 6% to 17%. A 2022 study shows annual carbon emissions from tropical deforestation have doubled during the last two decades and continue to increase: by 0.97 ± 0.16 PgC (petagrams of carbon, i.e. billions of tons) per year in 2001–2005 to 1.99 ± 0.13 PgC per year in 2015–2019.According to a review, north of 50°N, large scale deforestation leads to an overall net global cooling; but deforestation in the tropics leads to substantial warming: not just due to CO2 impacts, but also due to other biophysical mechanisms (making carbon-centric metrics inadequate). Moreover, it suggests that standing tropical forests help cool the average global temperature by more than 1 °C.The incineration and burning of forest plants to clear land releases large amounts of CO2, which contributes to global warming. Scientists also state that tropical deforestation releases 1.5 billion tons of carbon each year into the atmosphere.
Carbon sink or source
A study suggests logged and structurally degraded tropical forests are carbon sources for at least a decade – even when recovering – due to larger carbon losses from soil organic matter and deadwood, indicating that the tropical forest carbon sink (at least in South Asia) "may be much smaller than previously estimated", contradicting that "recovering logged and degraded tropical forests are net carbon sinks".
On the environment
According to a 2020 study, if deforestation continues at current rates it can trigger a total or almost total extinction of humanity in the next 20 to 40 years. They conclude that "from a statistical point of view . . . the probability that our civilisation survives itself is less than 10% in the most optimistic scenario." To avoid this collapse, humanity should pass from a civilization dominated by the economy to "cultural society" that "privileges the interest of the ecosystem above the individual interest of its components, but eventually in accordance with the overall communal interest."
Changes to the water cycle
The water cycle is also affected by deforestation. Trees extract groundwater through their roots and release it into the atmosphere. When part of a forest is removed, the trees no longer transpire this water, resulting in a much drier climate. Deforestation reduces the content of water in the soil and groundwater as well as atmospheric moisture. The dry soil leads to lower water intake for the trees to extract. Deforestation reduces soil cohesion, so that erosion, flooding and landslides ensue.Shrinking forest cover lessens the landscape's capacity to intercept, retain and transpire precipitation. Instead of trapping precipitation, which then percolates to groundwater systems, deforested areas become sources of surface water runoff, which moves much faster than subsurface flows. Forests return most of the water that falls as precipitation to the atmosphere by transpiration. In contrast, when an area is deforested, almost all precipitation is lost as run-off. That quicker transport of surface water can translate into flash flooding and more localized floods than would occur with the forest cover. Deforestation also contributes to decreased evapotranspiration, which lessens atmospheric moisture which in some cases affects precipitation levels downwind from the deforested area, as water is not recycled to downwind forests, but is lost in runoff and returns directly to the oceans. According to one study, in deforested north and northwest China, the average annual precipitation decreased by one third between the 1950s and the 1980s.
Trees, and plants in general, affect the water cycle significantly:
their canopies intercept a proportion of precipitation, which is then evaporated back to the atmosphere (canopy interception);
their litter, stems and trunks slow down surface runoff;
their roots create macropores – large conduits – in the soil that increase infiltration of water;
they contribute to terrestrial evaporation and reduce soil moisture via transpiration;
their litter and other organic residue change soil properties that affect the capacity of soil to store water.
their leaves control the humidity of the atmosphere by transpiring. 99% of the water absorbed by the roots moves up to the leaves and is transpired.As a result, the presence or absence of trees can change the quantity of water on the surface, in the soil or groundwater, or in the atmosphere. This in turn changes erosion rates and the availability of water for either ecosystem functions or human services. Deforestation on lowland plains moves cloud formation and rainfall to higher elevations.The forest may have little impact on flooding in the case of large rainfall events, which overwhelm the storage capacity of forest soil if the soils are at or close to saturation.
Tropical rainforests produce about 30% of our planet's fresh water.Deforestation disrupts normal weather patterns creating hotter and drier weather thus increasing drought, desertification, crop failures, melting of the polar ice caps, coastal flooding and displacement of major vegetation regimes.
Soil erosion
Due to surface plant litter, forests that are undisturbed have a minimal rate of erosion. The rate of erosion occurs from deforestation, because it decreases the amount of litter cover, which provides protection from surface runoff. The rate of erosion is around 2 metric tons per square kilometre. This can be an advantage in excessively leached tropical rain forest soils. Forestry operations themselves also increase erosion through the development of (forest) roads and the use of mechanized equipment.Deforestation in China's Loess Plateau many years ago has led to soil erosion; this erosion has led to valleys opening up. The increase of soil in the runoff causes the Yellow River to flood and makes it yellow-colored.Greater erosion is not always a consequence of deforestation, as observed in the southwestern regions of the US. In these areas, the loss of grass due to the presence of trees and other shrubbery leads to more erosion than when trees are removed.Soils are reinforced by the presence of trees, which secure the soil by binding their roots to soil bedrock. Due to deforestation, the removal of trees causes sloped lands to be more susceptible to landslides.
Other changes to the soil
Clearing forests changes the environment of the microbial communities within the soil, and causes a loss of biodiversity in regards to the microbes since biodiversity is actually highly dependent on soil texture. Although the effect of deforestation has much more profound consequences on sandier soils compared to clay-like soils, the disruptions caused by deforestation ultimately reduces properties of soil such as hydraulic conductivity and water storage, thus reducing the efficiency of water and heat absorption. In a simulation of the deforestation process in the Amazon, researchers found that surface and soil temperatures increased by 1 to 3 degrees Celsius demonstrating the loss of the soil's ability to absorb radiation and moisture. Furthermore, soils that are rich in organic decay matter are more susceptible to fire, especially during long droughts.Changes in soil properties could turn the soil itself into a carbon source rather than a carbon sink.
Biodiversity loss
Deforestation on a human scale results in decline in biodiversity, and on a natural global scale is known to cause the extinction of many species. The removal or destruction of areas of forest cover has resulted in a degraded environment with reduced biodiversity. Forests support biodiversity, providing habitat for wildlife; moreover, forests foster medicinal conservation. With forest biotopes being irreplaceable source of new drugs (such as taxol), deforestation can destroy genetic variations (such as crop resistance) irretrievably.
Since the tropical rainforests are the most diverse ecosystems on Earth and about 80% of the world's known biodiversity can be found in tropical rainforests, removal or destruction of significant areas of forest cover has resulted in a degraded environment with reduced biodiversity. Road construction and development of adjacent land, which greatly reduces the area of intact wilderness and causes soil erosion, is a major contributing factor to the loss of biodiversity in tropical regions. A study in Rondônia, Brazil, has shown that deforestation also removes the microbial community which is involved in the recycling of nutrients, the production of clean water and the removal of pollutants.It has been estimated that 137 plant, animal and insect species go extinct every day due to rainforest deforestation, which equates to 50,000 species a year. Others state that tropical rainforest deforestation is contributing to the ongoing Holocene mass extinction. The known extinction rates from deforestation rates are very low, approximately one species per year from mammals and birds, which extrapolates to approximately 23,000 species per year for all species. Predictions have been made that more than 40% of the animal and plant species in Southeast Asia could be wiped out in the 21st century. Such predictions were called into question by 1995 data that show that within regions of Southeast Asia much of the original forest has been converted to monospecific plantations, but that potentially endangered species are few and tree flora remains widespread and stable.
Scientific understanding of the process of extinction is insufficient to accurately make predictions about the impact of deforestation on biodiversity. Most predictions of forestry related biodiversity loss are based on species-area models, with an underlying assumption that as the forest declines species diversity will decline similarly. However, many such models have been proven to be wrong and loss of habitat does not necessarily lead to large scale loss of species. Species-area models are known to overpredict the number of species known to be threatened in areas where actual deforestation is ongoing, and greatly overpredict the number of threatened species that are widespread.In 2012, a study of the Brazilian Amazon predicts that despite a lack of extinctions thus far, up to 90 percent of predicted extinctions will finally occur in the next 40 years.
Oxygen-supply misconception
Rainforests are widely believed by lay persons to contribute a significant amount of the world's oxygen, although it is now accepted by scientists that rainforests contribute little net oxygen to the atmosphere and deforestation has only a minor effect on atmospheric oxygen levels. In fact about 50 percent of oxygen on earth is produced by algae.
On human health
Infectious diseases
The degradation and loss of forests disrupts nature's balance. Indeed, deforestation eliminates a great number of species of plants and animals which also often results in an increase in disease, and exposure of people to zoonotic diseases. Deforestation can also create a path for non-native species to flourish such as certain types of snails, which have been correlated with an increase in schistosomiasis cases.Forest-associated diseases include malaria, Chagas disease (also known as American trypanosomiasis), African trypanosomiasis (sleeping sickness), leishmaniasis, Lyme disease, HIV and Ebola. The majority of new infectious diseases affecting humans, including the SARS-CoV-2 virus that caused the COVID-19 pandemic, are zoonotic and their emergence may be linked to habitat loss due to forest area change and the expansion of human populations into forest areas, which both increase human exposure to wildlife.Deforestation is occurring all over the world and has been coupled with an increase in the occurrence of disease outbreaks. In Malaysia, thousands of acres of forest have been cleared for pig farms. This has resulted in an increase in the spread of the Nipah virus. In Kenya, deforestation has led to an increase in malaria cases which is now the leading cause of morbidity and mortality the country. A 2017 study in the American Economic Review found that deforestation substantially increased the incidence of malaria in Nigeria.Another pathway through which deforestation affects disease is the relocation and dispersion of disease-carrying hosts. This disease emergence pathway can be called "range expansion", whereby the host's range (and thereby the range of pathogens) expands to new geographic areas. Through deforestation, hosts and reservoir species are forced into neighboring habitats. Accompanying the reservoir species are pathogens that have the ability to find new hosts in previously unexposed regions. As these pathogens and species come into closer contact with humans, they are infected both directly and indirectly. Another example of range expansion due to deforestation and other anthropogenic habitat impacts includes the Capybara rodent in Paraguay.Deforestation reduces safe working hours for millions of people in the tropics, especially for those performing heavy labour outdoors. Continued global heating and forest loss is expected to amplify these impacts, reducing work hours for vulnerable groups even more. A study conducted from 2002 to 2018 also determined that the increase in temperature as a result of climate change, and the lack of shade due to deforestation, has increased the mortality rate of workers in Indonesia.A link between deforestation and infant mortality was found in Indonesia as well. The study shows documentation of deforestation and pregnancy order, as children born from first pregnancies face higher mortality risks due to in-utero exposure. The study's results suggest that women during their first pregnancy could have been affected by deforestation-induced malaria. It has been affirmed that in preserved regions, likely reasons including commercial activity, perinatal health care, alongside air pollution are not identifiable triggers of the weighty impression left by deforestation on newborn fatality.According to the World Economic Forum, 31% of emerging diseases are linked to deforestation. A publication by the United Nations Environment Programme in 2016 found that deforestation, climate change, and livestock agriculture are among the main causes that increase the risk of to zoonotic diseases, that is diseases that pass from animals to humans.
COVID-19 pandemic
Scientists have linked the Coronavirus pandemic to the destruction of nature, especially to deforestation, habitat loss in general and wildlife trade. According to the United Nations Environment Programme (UNEP) the Coronavirus disease 2019 is zoonotic, e.g., the virus passed from animals to humans. UNEP concludes that: "The most fundamental way to protect ourselves from zoonotic diseases is to prevent destruction of nature. Where ecosystems are healthy and biodiverse, they are resilient, adaptable and help to regulate diseases.
On the economy
Economic losses due to deforestation in Brazil could reach around 317 billion dollars per year, approximately 7 times higher in comparison to the cost of all commodities produced through deforestation.The forest products industry is a large part of the economy in both developed and developing countries. Short-term economic gains made by conversion of forest to agriculture, or over-exploitation of wood products, typically leads to a loss of long-term income and long-term biological productivity. West Africa, Madagascar, Southeast Asia and many other regions have experienced lower revenue because of declining timber harvests. Illegal logging causes billions of dollars of losses to national economies annually.
Monitoring
There are multiple methods that are appropriate and reliable for reducing and monitoring deforestation. One method is the "visual interpretation of aerial photos or satellite imagery that is labor-intensive but does not require high-level training in computer image processing or extensive computational resources". Another method includes hot-spot analysis (that is, locations of rapid change) using expert opinion or coarse resolution satellite data to identify locations for detailed digital analysis with high resolution satellite images. Deforestation is typically assessed by quantifying the amount of area deforested, measured at the present time.
From an environmental point of view, quantifying the damage and its possible consequences is a more important task, while conservation efforts are more focused on forested land protection and development of land-use alternatives to avoid continued deforestation. Deforestation rate and total area deforested have been widely used for monitoring deforestation in many regions, including the Brazilian Amazon deforestation monitoring by INPE. A global satellite view is available, an example of land change science monitoring of land cover over time.Satellite imaging has become crucial in obtaining data on levels of deforestation and reforestation. Landsat satellite data, for example, has been used to map tropical deforestation as part of NASA's Landsat Pathfinder Humid Tropical Deforestation Project. The project yielded deforestation maps for the Amazon Basin, Central Africa, and Southeast Asia for three periods in the 1970s, 1980s, and 1990s.Greenpeace has mapped out the forests that are still intact and published this information on the internet. World Resources Institute in turn has made a simpler thematic map showing the amount of forests present just before the age of man (8000 years ago) and the current (reduced) levels of forest.
Control
International, national and subnational policies
Policies for forest protection include information and education programs, economic measures to increase revenue returns from authorized activities and measures to increase effectiveness of "forest technicians and forest managers". Poverty and agricultural rent were found to be principal factors leading to deforestation. Contemporary domestic and foreign political decision-makers could possibly create and implement policies whose outcomes ensure that economic activities in critical forests are consistent with their scientifically ascribed value for ecosystem services, climate change mitigation and other purposes.
Such policies may use and organize the development of complementary technical and economic means – including for lower levels of beef production, sales and consumption (which would also have major benefits for climate change mitigation), higher levels of specified other economic activities in such areas (such as reforestation, forest protection, sustainable agriculture for specific classes of food products and quaternary work in general), product information requirements, practice- and product-certifications and eco-tariffs, along with the required monitoring and traceability. Inducing the creation and enforcement of such policies could, for instance, achieve a global phase-out of deforestation-associated beef. With complex polycentric governance measures, goals like sufficient climate change mitigation as decided with e.g. the Paris Agreement and a stoppage of deforestation by 2030 as decided at the 2021 United Nations Climate Change Conference could be achieved. A study has suggested higher income nations need to reduce imports of tropical forest-related products and help with theoretically forest-related socioeconomic development. Proactive government policies and international forest policies "revisit[ing] and redesign[ing] global forest trade" are needed as well.In 2022 the European parliament approved a bill aiming to stop the import linked with deforestation. The bill may cause to Brazil, for example, to stop deforestation for agricultural production and begun to "increase productivity on existing agricultural land". The legislation was adopted with some changes by the European Council in May 2023 and is expected to enter into force several weeks after. The bill requires companies who want to import certain types of products to the European Union to prove the production of those commodities is not linked to areas deforested after 31 of December 2020. It prohibits also import of products linked with Human rights abuse. The list of products includes: palm oil, cattle, wood, coffee, cocoa, rubber and soy. Some derivatives of those products are also included: chocolate, furniture, printed paper and several palm oil based derivates.
International pledges
In 2014, about 40 countries signed the New York Declaration on Forests, a voluntary pledge to halve deforestation by 2020 and end it by 2030. The agreement was not legally binding, however, and some key countries, such as Brazil, China, and Russia, did not sign onto it. As a result, the effort failed, and deforestation increased from 2014 to 2020.In November 2021, 141 countries (with around 85% of the world's primary tropical forests and 90% of global tree cover) agreed at the COP26 climate summit in Glasgow to the Glasgow Leaders' Declaration on Forests and Land Use, a pledge to end and reverse deforestation by 2030. The agreement was accompanied by about $19.2 billion in associated funding commitments.The 2021 Glasgow agreement improved on the New York Declaration by now including Brazil and many other countries that did not sign the 2014 agreement. Some key nations with high rates of deforestation (including Malaysia, Cambodia, Laos, Paraguay, and Myanmar) have not signed the Glasgow Declaration. Like the earlier agreement, the Glasgow Leaders' Declaration was entered into outside the UN Framework Convention on Climate Change and is thus not legally binding.In November 2021, the EU executive outlined a draft law requiring companies to prove that the agricultural commodities beef, wood, palm oil, soy, coffee and cocoa destined for the EU's 450 million consumers were not linked to deforestation. In September 2022, the EU Parliament supported and strengthened the plan from the EU’s executive with 453 votes to 57.In 2018 the biggest palm oil trader, Wilmar, decided to control its suppliers to avoid deforestationIn 2021, over 100 world leaders, representing countries containing more than 85% of the world's forests, committed to halt and reverse deforestation and land degradation by 2030.
Land rights
Indigenous communities have long been the frontline of resistance against deforestation. Transferring rights over land from public domain to its indigenous inhabitants is argued to be a cost-effective strategy to conserve forests. This includes the protection of such rights entitled in existing laws, such as India's Forest Rights Act. The transferring of such rights in China, perhaps the largest land reform in modern times, has been argued to have increased forest cover. In Brazil, forested areas given tenure to indigenous groups have even lower rates of clearing than national parks.Community concessions in the Congolian rainforests have significantly less deforestation as communities are incentivized to manage the land sustainably, even reducing poverty.
Forest management
Efforts to stop or slow deforestation have been attempted for many centuries because it has long been known that deforestation can cause environmental damage sufficient in some cases to cause societies to collapse. In Tonga, paramount rulers developed policies designed to prevent conflicts between short-term gains from converting forest to farmland and long-term problems forest loss would cause, while during the 17th and 18th centuries in Tokugawa, Japan, the shōguns developed a highly sophisticated system of long-term planning to stop and even reverse deforestation of the preceding centuries through substituting timber by other products and more efficient use of land that had been farmed for many centuries. In 16th-century Germany, landowners also developed silviculture to deal with the problem of deforestation. However, these policies tend to be limited to environments with good rainfall, no dry season and very young soils (through volcanism or glaciation). This is because on older and less fertile soils trees grow too slowly for silviculture to be economic, whilst in areas with a strong dry season there is always a risk of forest fires destroying a tree crop before it matures.
In the areas where "slash-and-burn" is practiced, switching to "slash-and-char" would prevent the rapid deforestation and subsequent degradation of soils. The biochar thus created, given back to the soil, is not only a durable carbon sequestration method, but it also is an extremely beneficial amendment to the soil. Mixed with biomass it brings the creation of terra preta, one of the richest soils on the planet and the only one known to regenerate itself.
Sustainable forest management
Certification, as provided by global certification systems such as Programme for the Endorsement of Forest Certification and Forest Stewardship Council, contributes to tackling deforestation by creating market demand for timber from sustainably managed forests. According to the United Nations Food and Agriculture Organization (FAO), "A major condition for the adoption of sustainable forest management is a demand for products that are produced sustainably and consumer willingness to pay for the higher costs entailed. [...] By promoting the positive attributes of forest products from sustainably managed forests, certification focuses on the demand side of environmental conservation."
Financial compensations for reducing emissions from deforestation
Reducing emissions from deforestation and forest degradation (REDD) in developing countries has emerged as a new potential to complement ongoing climate policies. The idea consists in providing financial compensations for the reduction of greenhouse gas (GHG) emissions from deforestation and forest degradation". REDD can be seen as an alternative to the emissions trading system as in the latter, polluters must pay for permits for the right to emit certain pollutants (i.e. CO2).
Main international organizations including the United Nations and the World Bank, have begun to develop programs aimed at curbing deforestation. The blanket term Reducing Emissions from Deforestation and Forest Degradation (REDD) describes these sorts of programs, which use direct monetary or other incentives to encourage developing countries to limit and/or roll back deforestation. Funding has been an issue, but at the UN Framework Convention on Climate Change (UNFCCC) Conference of the Parties-15 (COP-15) in Copenhagen in December 2009, an accord was reached with a collective commitment by developed countries for new and additional resources, including forestry and investments through international institutions, that will approach US$30 billion for the period 2010–2012.Significant work is underway on tools for use in monitoring developing countries' adherence to their agreed REDD targets. These tools, which rely on remote forest monitoring using satellite imagery and other data sources, include the Center for Global Development's FORMA (Forest Monitoring for Action) initiative and the Group on Earth Observations' Forest Carbon Tracking Portal. Methodological guidance for forest monitoring was also emphasized at COP-15. The environmental organization Avoided Deforestation Partners leads the campaign for development of REDD through funding from the U.S. government.
History
Prehistory
The Carboniferous Rainforest Collapse was an event that occurred 300 million years ago. Climate change devastated tropical rainforests causing the extinction of many plant and animal species. The change was abrupt, specifically, at this time climate became cooler and drier, conditions that are not favorable to the growth of rainforests and much of the biodiversity within them. Rainforests were fragmented forming shrinking 'islands' further and further apart. Populations such as the sub class Lissamphibia were devastated, whereas Reptilia survived the collapse. The surviving organisms were better adapted to the drier environment left behind and served as legacies in succession after the collapse.
Rainforests once covered 14% of the earth's land surface; now they cover a mere 6% and experts estimate that the last remaining rainforests could be consumed in less than 40 years.
Small scale deforestation was practiced by some societies for tens of thousands of years before the beginnings of civilization. The first evidence of deforestation appears in the Mesolithic period. It was probably used to convert closed forests into more open ecosystems favourable to game animals. With the advent of agriculture, larger areas began to be deforested, and fire became the prime tool to clear land for crops. In Europe there is little solid evidence before 7000 BC. Mesolithic foragers used fire to create openings for red deer and wild boar. In Great Britain, shade-tolerant species such as oak and ash are replaced in the pollen record by hazels, brambles, grasses and nettles. Removal of the forests led to decreased transpiration, resulting in the formation of upland peat bogs. Widespread decrease in elm pollen across Europe between 8400 and 8300 BC and 7200–7000 BC, starting in southern Europe and gradually moving north to Great Britain, may represent land clearing by fire at the onset of Neolithic agriculture.
The Neolithic period saw extensive deforestation for farming land. Stone axes were being made from about 3000 BC not just from flint, but from a wide variety of hard rocks from across Britain and North America as well. They include the noted Langdale axe industry in the English Lake District, quarries developed at Penmaenmawr in North Wales and numerous other locations. Rough-outs were made locally near the quarries, and some were polished locally to give a fine finish. This step not only increased the mechanical strength of the axe, but also made penetration of wood easier. Flint was still used from sources such as Grimes Graves but from many other mines across Europe.
Evidence of deforestation has been found in Minoan Crete; for example the environs of the Palace of Knossos were severely deforested in the Bronze Age.
Pre-industrial history
Just as archaeologists have shown that prehistoric farming societies had to cut or burn forests before planting, documents and artifacts from early civilizations often reveal histories of deforestation. Some of the most dramatic are eighth century BCE Assyrian reliefs depicting logs being floated downstream from conquered areas to the less forested capital region as spoils of war. Ancient Chinese texts make clear that some areas of the Yellow River valley had already destroyed many of their forests over 2000 years ago and had to plant trees as crops or import them from long distances. In South China much of the land came to be privately owned and used for the commercial growing of timber.Three regional studies of historic erosion and alluviation in ancient Greece found that, wherever adequate evidence exists, a major phase of erosion follows the introduction of farming in the various regions of Greece by about 500–1,000 years, ranging from the later Neolithic to the Early Bronze Age. The thousand years following the mid-first millennium BC saw serious, intermittent pulses of soil erosion in numerous places. The historic silting of ports along the southern coasts of Asia Minor (e.g. Clarus, and the examples of Ephesus, Priene and Miletus, where harbors had to be abandoned because of the silt deposited by the Meander) and in coastal Syria during the last centuries BC.Easter Island has suffered from heavy soil erosion in recent centuries, aggravated by agriculture and deforestation. The disappearance of the island's trees seems to coincide with a decline of its civilization around the 17th and 18th century. Scholars have attributed the collapse to deforestation and over-exploitation of all resources.The famous silting up of the harbor for Bruges, which moved port commerce to Antwerp, also followed a period of increased settlement growth (and apparently of deforestation) in the upper river basins. In early medieval Riez in upper Provence, alluvial silt from two small rivers raised the riverbeds and widened the floodplain, which slowly buried the Roman settlement in alluvium and gradually moved new construction to higher ground; concurrently the headwater valleys above Riez were being opened to pasturage.A typical progress trap was that cities were often built in a forested area, which would provide wood for some industry (for example, construction, shipbuilding, pottery). When deforestation occurs without proper replanting, however; local wood supplies become difficult to obtain near enough to remain competitive, leading to the city's abandonment, as happened repeatedly in Ancient Asia Minor. Because of fuel needs, mining and metallurgy often led to deforestation and city abandonment.
With most of the population remaining active in (or indirectly dependent on) the agricultural sector, the main pressure in most areas remained land clearing for crop and cattle farming. Enough wild green was usually left standing (and partially used, for example, to collect firewood, timber and fruits, or to graze pigs) for wildlife to remain viable. The elite's (nobility and higher clergy) protection of their own hunting privileges and game often protected significant woodland.Major parts in the spread (and thus more durable growth) of the population were played by monastical 'pioneering' (especially by the Benedictine and Commercial orders) and some feudal lords' recruiting farmers to settle (and become tax payers) by offering relatively good legal and fiscal conditions. Even when speculators sought to encourage towns, settlers needed an agricultural belt around or sometimes within defensive walls. When populations were quickly decreased by causes such as the Black Death, the colonization of the Americas, or devastating warfare (for example, Genghis Khan's Mongol hordes in eastern and central Europe, Thirty Years' War in Germany), this could lead to settlements being abandoned. The land was reclaimed by nature, but the secondary forests usually lacked the original biodiversity. The Mongol invasions and conquests alone resulted in the reduction of 700 million tons of carbon from the atmosphere by enabling the re-growth of carbon-absorbing forests on depopulated lands over a significant period of time.
From 1100 to 1500 AD, significant deforestation took place in Western Europe as a result of the expanding human population. The large-scale building of wooden sailing ships by European (coastal) naval owners since the 15th century for exploration, colonisation, slave trade, and other trade on the high seas, consumed many forest resources and became responsible for the introduction of numerous bubonic plague outbreaks in the 14th century. Piracy also contributed to the over harvesting of forests, as in Spain. This led to a weakening of the domestic economy after Columbus' discovery of America, as the economy became dependent on colonial activities (plundering, mining, cattle, plantations, trade, etc.)The massive use of charcoal on an industrial scale in Early Modern Europe was a new type of consumption of western forests. Each of Nelson's Royal Navy war ships at Trafalgar (1805) required 6,000 mature oaks for its construction. In France, Colbert planted oak forests to supply the French navy in the future. When the oak plantations matured in the mid-19th century, the masts were no longer required because shipping had changed.
19th and 20th centuries
Steamboats
In the 19th century, introduction of steamboats in the United States was the cause of deforestation of banks of major rivers, such as the Mississippi River, with increased and more severe flooding one of the environmental results. The steamboat crews cut wood every day from the riverbanks to fuel the steam engines. Between St. Louis and the confluence with the Ohio River to the south, the Mississippi became more wide and shallow, and changed its channel laterally. Attempts to improve navigation by the use of snag pullers often resulted in crews' clearing large trees 100 to 200 feet (61 m) back from the banks. Several French colonial towns of the Illinois Country, such as Kaskaskia, Cahokia and St. Philippe, Illinois, were flooded and abandoned in the late 19th century, with a loss to the cultural record of their archeology.
Society and culture
Different cultures of different places in the world have different interpretations of the actions of the cutting down of trees. For example, in Meitei mythology and Meitei folklore of Manipur (India), deforestation is mentioned as one of the reasons to make mother nature weep and mourn for the death of her precious children.
See also
References
Sources
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 (license statement/permission). Text taken from Global Forest Resources Assessment 2020 Key findings, FAO, FAO.
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO (license statement/permission). Text taken from The State of the World’s Forests 2020. Forests, biodiversity and people – In brief, FAO & UNEP, FAO & UNEP.
External links
Global map of deforestation based on Landsat data
Old-growth forest zones within the remaining world forests
OneWorld Tropical Forests Guide Archived 22 July 2011 at the Wayback Machine
General info on deforestation effects Archived 18 April 2021 at the Wayback Machine
Deforestation and Climate Change
Ritchie, Hannah; Roser, Max (9 February 2021). "Drivers of Deforestation". Our World in Data. |
agricultural waste | Agricultural waste are plant residues from agriculture. These waste streams originate from arable land and horticulture. Agricultural waste are all parts of crops that are not used for human or animal food. Crop residues consist mainly of stems, branchs (in pruning), and leaves. It is estimated that, on average, 80% of the plant of such crops consists of agricultural waste.The four most commonly grown agricultural crops worldwide are sugarcane, maize, cereals and rice. The total weight of all these crops is more than 16,500 billion kilograms per year. Since 80% of this consists of agricultural waste, many tens of thousands of billions of kilograms of agricultural waste remain worldwide. Some 700 million tonnes of agricultural waste is produced annually by the EU.
Recycling agricultural waste
Agricultural waste consists mainly of cellulose, hemicellulose and lignin. Agricultural waste is poorly digestible and in unprocessed form not widely suitable as animal feed.Sometimes, agricultural waste is burnt, either as biomass in power plants or simply on land. Burning agricultural waste on land is called stubble burning and is still common in countries like China and India where a third of the world's population lives. Then, instead of being reused to make new products, valuable substances in agricultural waste are turned into CO₂, smog, particulate matter and ash.Today, burning of agricultural waste is increasingly banned and pruning biomass is used for applications, including woodchipper for bedding soils. Three categories of substances are mainly extracted from agricultural waste: proteins, materials containing cellulose and bioactive substances such as essential oils and carotenoids. The increasing ability to isolate such valuable substances in a pure form increases the economic value of agricultural waste.
Impact of agricultural waste on the environment
The world's population and livestock size is growing and that is where the rising demand for food comes from. The average European is expected to consume 165 grams of meat per person daily. People around the world consume an average of 75 pounds of meat per person per year. Global meat consumption has more than doubled since 1990. Producing 1 kg (2.2 lb) of beef requires an average of 25 kg (55 lb) of crop. The production of all this food also results in more and more agricultural waste.
In large quantities, agricultural waste can have a negative impact on the environment and habitat, for example through greenhouse gas emissions, the creation of unpleasant odours, and toxic liquids that can infiltrate water sources.The frequent and large-scale burning of agricultural waste also has negative health impacts on people who are exposed to toxic smog through the fires. Particularly in early autumn, large-scale burning of agricultural wastes worldwide results in frequent smog.The World Health Organisation (WHO) identifies smog due to agricultural waste burning as one of the largest sources of ambient air pollution. All forms of air pollution combined cause 7 million deaths annually, including 650,000 children.
Besides the impact on air quality, burning of agricultural waste in fields also has a negative impact on soil fertility, economic development and climate. The absence of environmentally friendly agricultural waste management further leads to animal suffering, water pollution, fertilisation, and decline in biodiversity, among others.According to the waste hierarchy, burning agricultural waste for the sake of energy generation is a less environmentally friendly treatment method than recycling or reusing it. Moreover, incineration for energy generation can be done once, while consumer goods (such as paper made from agricultural waste) can be recycled another seven times. After this, it can possibly still be burned for energy, or even converted into biogas or compost through fermentation.In an effort to reduce the negative impact of agricultural waste on earth, some companies have focused on developing new technologies that allow agricultural waste to be put to meaningful use and returning to traditional non-combustion use.
Agricultural burning in California
California accepts burning as a tool to remove weeds, prevent disease and control pests, especially for rice and pears. Burning is allowed in Permissive Burn Days.
Applications
Several companies worldwide use leftover agricultural waste to make new products. Reusing agricultural waste is in line with the desired circular economy. In today's economy, primary raw materials are mostly used. Agricultural waste, on the other hand, is a secondary raw material. They are residual (waste) streams from an existing industry that can serve as raw materials for new applications. Increasingly reusing materials as raw materials for the production process contributes to the EU goal of achieving a circular economy by 2050.
Fiberboard
CalFibre from USA has developed and build the worlds first rice straw-based medium density fiberboard (MDF) plant, located in Willows, CA. By utilizing rice-straw instead of timber, CalFibre spares the equivalent of 4,200 acres of forest (roughly 180,000 metric tons of wood) from logging, with the harvesting and transportation of such emitting 150,000 tons of CO2e. Additionally, preventing rice straw decomposition eliminates 66,000 tons of methane gas each year, equivalent to around 1.848 million tons of CO2. This approach also saves up to 18 billion gallons of water annually (meeting the yearly water requirements of 500,000 Bay Area residents) and curtails 1.4 million tons of CO2 emissions linked with water management. The second plant is currently being built in Egypt.
Paper and board
Agricultural waste is used as a raw material for sustainable paper and board by the company PaperWise. The stalks and leaves that remain after harvesting are processed into raw material for paper and board. With PaperWise, the cellulose needed for paper is extracted from agricultural waste. This replaces the proportion of cellulose fibres from trees, meaning that these trees do not need to be cut down for paper production, but can be left to absorb CO₂ and convert it into oxygen. Made from agricultural waste, this paper and board meets high quality standards and is available as printing paper, among other things. It is also used for sustainable packaging and eco-friendly office products.
Bio-based oil
Vertoro is a spin-off of a public-private partnership between Brightlands Chemelot Campus, DSM, Chemelot InSciTe, Maastricht University (UM) and Eindhoven University of Technology (TU/e), which are making 100% bio-based oil from agricultural waste, among other things, as an alternative to fossil oil.
Leather
Fruitleather Rotterdam makes handbags and shoes based on discarded fruit. Because 40% does not meet the requirements of supermarket chains, for example a crooked cucumber or a slightly deformed tomato, a lot of fruit goes to waste. Fruitleather Rotterdam has therefore developed an eco-friendly production process that converts fruit waste into sustainable leather-like material.
Catering disposables
Eco-Products from USA sell catering disposables based on various agricultural waste streams. These disposables are used for events, parties and single-use circumstances.
Fuel
In Finland, the joint venture Suomen Lantakaasu has been established by dairy producer Valio and energy company St1 to produce sustainable transport fuel. This uses a biogas plant fed by manure and agricultural waste from Finland.
Plastic
PlasticFri is a Swedish startup that produces sustainable biocomposites. The startup's proprietary technology extracts fibrous materials from agricultural waste and non-edible plants to create an eco-friendly plastic alternative. PlasticFri's material contains no harmful substances and is fully biodegradable.
Awareness
Most farmers in developing countries are not aware of the alternative applications and therefore consider burning as the best option. Therefore, large-scale awareness programmes are needed to;
Recognise agricultural waste as a waste stream.
Educate on the adverse effects of low-grade waste treatment methods such as incineration and landfill.
Educate farmers on the availability of economically viable options higher up the waste hierarchy and their benefits to themselves and the environment.
See also
Environmental monitoring
Eutrophication
Plasticulture
Plastic pollution
Pruning
== References == |
environmental policy of the united states | The environmental policy of the United States is a federal governmental action to regulate activities that have an environmental impact in the United States. The goal of environmental policy is to protect the environment for future generations while interfering as little as possible with the efficiency of commerce or the liberty of the people and to limit inequity in who is burdened with environmental costs. As his first official act bringing in the 1970s, President Richard Nixon signed the U.S. National Environmental Policy Act (NEPA) into law on New Years Day, 1970. Also in the same year, America began celebrating Earth Day, which has been called "the big bang of U.S. environmental politics, launching the country on a sweeping social learning curve about ecological management never before experienced or attempted in any other nation." NEPA established a comprehensive US national environmental policy and created the requirement to prepare an environmental impact statement for “major federal actions significantly affecting the quality of the environment.” Author and consultant Charles H. Eccleston has called NEPA, the world's “environmental Magna Carta”.As a result of the environmental movement in the United States, environmental policy continued to mature in the 1970s as several broad environmental laws were passed, regulating air and water pollution and forming the Environmental Protection Agency (EPA). Partially due to the high costs associated with these regulations, there has been a backlash from business and politically conservative interests, limiting increases to environmental regulatory budgets and slowing efforts to protect the environment. Since the 1970s, despite frequent legislative gridlock, there have been significant achievements in environmental regulation, including increases in air and water quality and, to a lesser degree, control of hazardous waste. Due to increasing scientific consensus on global warming and political pressure from environmental groups, modifications to the United States energy policy and limits on greenhouse gas have been suggested.
As established under NEPA, the US was the first nation in the world to introduce the concept of preparing an environmental impact statement (EIS) to evaluate the alternatives and impacts of proposed federal actions. The EIS process is designed to forge federal policies, programs, projects, and plans. A large percentage of nations around the world have adopted provisions that emulate the American EIS process.
Policy tools
The two major policy tools for protecting the environment are rules and inducements. The United States has chosen to use rules, primarily through regulation. Such regulations can come in the form of design standards and performance standards. Performance standards specify emission levels and let those covered by the rules decide how those levels will be met. Design standards specify exactly how performance standards will be met.
Alternatively, the government can use inducements, or "market reform". Inducements are rewards and punishments used to influence people or groups. The two major types of market reforms are charge systems, such as emissions taxes, and "tradable permit systems". One type of tradable permit system is an "auction of pollution rights" in which the amount of allowed pollution is set and divided into units, which are then auctioned, giving environmental organizations the opportunity to buy the units to create a cleaner environment than originally planned. Such a plan was implemented for SO2 emissions in the 1990 Acid Rain Program and has been undertaken for greenhouse gases on a regional scale as a way to mitigate global warming.
Power delegation and policy jurisdiction
Executive branch
Governmental authority on environmental issues in the United States is highly fragmented at the national, state and local levels. While the EPA is the most comprehensive environmental agency, its authority on these matters is not absolute. Virtually all of the federal executive departments have some area of environmental authority.
As chief executive, the President plays an important role in environmental policy. President's such as Teddy Roosevelt, Franklin D. Roosevelt, and Richard Nixon have acted as "bully pulpit" to gain support for environmental legislation. Their role as chief diplomat enables them to enact international agreements with environmental stipulations. Ronald Reagan signed the Montreal Protocol, Obama was a leader in negotiating the Paris agreement and the Bush administration rejected the Kyoto protocol. Presidents can use their "soft" power to draw attention to environmental issues and set broad administrative goals. They can veto legislation and, through executive orders, regulate administrative behavior.
Legislative branch
Fragmentation within the executive branch is duplicated in Congress and within the states. Congress exercises a major role through legislative and oversight hearings. It also influences policy by publishing studies and reports. Individuals Members typically take announce positions and some make the environment one of their specialties. The EPA is the concern of over half the Congressional committees . Some seventy committees and subcommittees control water quality policy, for example. Such fragmentation creates both opportunities and problems. While such a variety of committees provide enormous access for environmentalist and industry groups to lobby, the division of tasks means that no one committee or agency looks at environmental problems as a whole. Building policy consensus in Congress is rarely easy because of the diversity of interests and of members whose concerns need to be met.
History
There are many more environmental laws in the United States, both at the federal and state levels. The common law of property and takings also play an important role in environmental issues. In addition, the law of standing, relating to who has a right to bring a lawsuit, is an important issue in environmental law in the United States.
Origins of the environmental movement
The history of environmental law in the United States can be traced back to early roots in common law doctrines, for example, the law of nuisance and the public trust doctrine. The first statutory environmental law was the Rivers and Harbors Act of 1899, which has been largely superseded by the Clean Water Act. However, most current major environmental statutes, such as the federal statutes listed above, were passed during the modern environmental movement spanning the late 1960s through the early 1980s. Prior to the passage of these statutes, most federal environmental laws were not nearly as comprehensive.The precursor of the modern environmental movement in the United States was the early 20th century conservation movement, associated with President Theodore Roosevelt and Gifford Pinchot. During this period, the U.S. Forest Service was formed and public concern for consumer protection began, epitomized by the publication of The Jungle by Upton Sinclair. The modern environmental movement was inspired in part by the publication of Rachel Carson's controversial 1962 book Silent Spring, which pointed out the perils of pesticide use and rallied concern for the environment in general. Carson argued that nature deserved human protection and referred to pesticides as the atomic bomb for insects. She stated that these pesticides would cycle through the environment hurting humans and nature and thought they should be used wisely. Carson played a big role in environment activism that was later to come. Along with critiques of the misuse of technology from figures such as William Ophuls, Barry Commoner and Garrett Hardin, the ineffectiveness and criticism of the 1960s-era Clean Air and Clean Water acts gave a burgeoning momentum to the environmental movement.In addition to growing public support, structural changes such as Congressional reform and new access to the courts gave environmentalists new power to enact change. The movement that formed held three key values: ecology, health, and sustainability. These values—that people depend on and are interconnected with the environment, that damage to the environment can cause health issues, and that dependence on non-renewable resources should be limited—along with a uniquely sympathetic president and Congress, led to great environmental policy change in the 1970s. In 1972 the Club of Rome report came out which was a scholarly effort to gauge the severity of the environmental problem. A team of researchers concluded with one of the most alarming appraisals of the time and set off widespread debates over the findings, its methods, and policy implications. The model was built mainly to investigate major trends of global concerns such as accelerating industrialization, rapid population growth, widespread malnutrition, depletion of nonrenewable resources and a deteriorating environment. They concluded that if the present growth trends in world population, industrialization, pollution, food production, and resource depletion remains unchanged than the limits to growth on this planet will be reached sometime within the next one hundred years.One lawsuit that has been widely recognized as one of the earliest environmental cases is Scenic Hudson Preservation Conference v. Federal Power Commission, decided in 1965 by the Second Circuit Court of Appeals, prior to passage of the major federal environmental statutes. The case helped halt the construction of a power plant on Storm King Mountain in New York State. The case has been described as giving birth to environmental litigation and helping create the legal doctrine of standing to bring environmental claims. The Scenic Hudson case also is said to have helped inspire the passage of the National Environmental Policy Act, and the creation of such environmental advocacy groups as the Natural Resources Defense Council.
Presidential involvements
Nixon and the Environmental Decade (1970–1980)
On January 1, 1970, President Richard Nixon signed the National Environmental Policy Act (NEPA), beginning the 1970s that some have called the "environmental decade." NEPA created the Council on Environmental Quality which oversaw the environmental impact of federal actions. Later in the year, Nixon created the Environmental Protection Agency (EPA), which consolidated environmental programs from other agencies into a single entity. The legislation during this period concerned primarily first-generation pollutants in the air, surface water, groundwater, and solid waste disposal. Air pollutants such as particulates, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone were put under regulation, and issues such as acid rain, visibility, and global warming were also concerns. In surface water, the pollutants of concern were conventional pollutants (bacteria, biochemical oxygen demand and suspended solids), dissolved solids, nutrients, and toxic substances such as metals and pesticides. For groundwater, the pollutants included biological contaminants, inorganic and organic substances, and radionuclides. Finally, solid waste contaminants from agriculture, industry, mining, municipalities, and other sectors were put under control.
The Clean Air Act amendments of 1970 (CAA) and the Federal Water Pollution Control Act amendments of 1972 (Clean Water Act) moved environmental concerns in a new direction.
The new CAA standards that were to be promulgated were unattainable with existing technology—they were technology-forcing. The standards that the EPA put into place called mainly for state implementation. Each state prepared state implementation plans (SIPs), requiring EPA approval. The 1970 CAA also established deadlines and penalties for automobile emission standards in new cars, resulting in the development and adoption of catalytic converters and greatly reducing automobile pollution.
For wastewater, each discharging facility was required to obtain a permit, and EPA began to issue new federal standards ("effluent guidelines") that required industries to use the "best available technology" for treating their wastes. Congress also established a massive public works program to assist in the construction of sewage treatment plants for municipalities, and most plants were required to meet secondary treatment standards.
Political scientists Byron Daines and Glenn Sussman have evaluated all the presidents from Franklin Roosevelt to George W. Bush on their environmentalism. in their judgment, all the Democrats are evaluated as having a positive impact on the environment, along with one Republican: Nixon. Capital the other five Republicans had a mixed impact (Eisenhower, Ford and George H.W. Bush), or negative impacts (Ronald Reagan and George W. Bush). Daines and Sussman conclude their analysis by identifying six major achievements for which they give credit to Nixon.
He broadened the attention span of the Republican Party to include environmental issues, for the first time since the days of Theodore Roosevelt. He thereby "dislodged the Democratic Party from its position of dominance over the environment."
He used presidential powers, and promoted legislation in Congress to create a permanent political structure, most notably the Environmental Protection Agency, the White House Council on Environmental Quality, the National Oceanic and Atmospheric Administration, and others.
He helped ensure that Congress build a permanent structure supportive of environmentalism, especially the National Environmental Policy Act of 1970, which enjoined all federal agencies to help protect the environment.
Nixon appointed a series of strong environmentalists in two highly visible positions including William Ruckelshaus, Russell Train, Russell W. Peterson, and John C. Whitaker (who was a senior White House aide for four years, becoming Undersecretary of the Interior in 1973).
Nixon initiated worldwide diplomatic attention to environmental issues, working especially with NATO.
Finally, they assert: "Nixon did not have to be personally committed to the environment to become one of the most successful presidents in promoting environmental priorities."
The Ford Administration (1974–1977)
Environmentalism was a peripheral issue during the short administration of Gerald Ford, 1974–1977. His primary concern was a stable economy, and environmental issues took less priority than policies for economic growth. Environmentalists left over from the Nixon days, such as EPA head Russell Train, opposed this, while opponents of environmentalism, such as Thomas S. Kleppe, encouraged this. As Secretary of the Interior, Kleppe was a leader of the “Sagebrush Rebellion” in which Western ranchers had the support of state government in 15 Western states who passed laws and launched litigation to try to nullify federal environmental protections that interfered with their business. They lost repeatedly in the federal courts, most notably in the Supreme Court decision in Kleppe v. New Mexico (1976).Ford's successes included the addition of two national monuments, six historical sites, three historic parks and two national preserves. None were controversial. He signed the Safe Drinking Water Act (1974) and the Resource Conservation and Recovery Act (1976), two of the landmark laws approved in the "environmental decade." In the international field, agreements with Canada, Mexico, China, Japan, the Soviet Union and several European countries included provisions to protect endangered species. Ford narrowly defeated Ronald Reagan for renomination in 1976, when environmental issues were not an issue. He was defeated by Jimmy Carter, who attacked Ford's environmental record.
The Carter Administration (1977–1981)
Jimmy Carter supported many of the goals of the environmentalist movement, and appointed prominent environmentalists to high positions. As president his rhetoric strongly supported environmentalism, with a certain softness regarding his acceptance of nuclear energy; he been trained in nuclear energy with atomic submarines in the Navy. Carter signed several significant bills to protect the environment, including the Surface Mining Control and Reclamation Act of 1977, which regulates strip mining. In 1980 Carter signed into law a bill that established Superfund, a federal program designed to clean up sites contaminated with hazardous substances.
By midterm, however, Carter's inability to work closely with the Democratic Congress meant that many initiatives were never passed, to the great disappointment of his supporters. Carter's weakness was exhibited in his 1977 decision to eliminate funding for 19 water resource construction projects, despite strong objections from Congressmen who favored the programs. Carter distrusted the programs, based on his own troubled gubernatorial experience with the Army Corps of Engineers, his campaign rhetoric and the rhetoric of his environmentalist supporters, compounded by his lack of experience with Congress. He was forced to retreat, and lost much of his influence on Capitol Hill. Democrats in Congress were displeased with his moralistic, executive-oriented, rational approach to decision-making and his reluctance adjustment to go along with standard congressional methods of compromise, patronage, and logrolling.Carter was successful in the long term in his energy policy, although his poor publicity apparatus obscured that success during his time in office. Americans had become alarmingly dependent on imported oil, purchasing about a fourth of all the OPEC production. American consumption per capita was more than double that of Europe or Japan. Carter's goal was to reverse this dependence. He supported the 1977 laws creating the Department of Energy, and the Emergency Natural Gas Act, and created the Synthetic Fuels Corporation, funded with $20 billion for joint ventures with the private sector.A 1977 memo from President Carter's chief science adviser Frank Press warned of the possibility of catastrophic climate change caused by increasing carbon dioxide concentrations introduced into the atmosphere by fossil fuel consumption. However, other issues—such as known harms to health from pollutants, and avoiding energy dependence on other nations—seemed more pressing and immediate. Energy Secretary James Schlesinger advised that "the policy implications of this issue are still too uncertain to warrant Presidential involvement and policy initiatives", and the fossil fuel industry began sowing doubt about climate science.Cecil Andrus, formerly Governor of Idaho, served as Carter's Secretary of the Interior during 1978 to 1981. He convinced Carter to withdraw nearly half of 375 million acres of public domain land from commercial use in a series of executive moves and new laws. In December 1978 the President placed more 56 million acres of the state's federal lands into the National Park System, protecting them from mineral or oil development. The 1980 Alaska National Interest Lands Conservation Act doubled the amount of public land set aside for national parks and wildlife refuges. Carter used his power under the 1906 Antiquities Act to set aside 57 million acres in 17 national monuments. The remaining acres were withdrawn under the Federal Land Policy and Management Act of 1976. Business and conservative interests complained that economic growth would be hurt.
The Reagan Administration (1981–1989)
Ronald Reagan entered office skeptical of environmental protection laws and campaigned against harsh government regulation with the environmental arena in mind. As Reagan entered office, he was given two transition reports. One report was Mandate for Leadership, published by The Heritage Foundation. Another was "Avoiding a GOP Economic Dunkirk" from conservative Congressman David Stockman(R-MI). Each report called for drastic changes in environmental regulation, primarily through administrative changes. In pursuit of this strategy, Reagan gradually reduced the EPA's budget by 30% through the Omnibus Budget Reconciliation Act of 1981, cut the number of EPA employees, and appointed people at key agency positions who would enthusiastically follow the administration line. Appointees such as Anne Burford at the EPA and James G. Watt at the Department of the Interior were overtly hostile to environmental protection. Through his appointments, Reagan changed the operations of environmental protection from stiff regulation to "cooperative regulation." (Burford and most of her Assistant Administrators were forced to resign in 1983 due to scandals involving their mismanagement of Superfund and other EPA programs.)
Under this administrative strategy of regulatory relief, environmental laws were written and interpreted more favorably for industry interests. The Office of Management and Budget (OMB) was also given new powers to write regulations. During the first Reagan administration, the OMB was given the power to require a favorable cost-benefit analysis of any regulation before it could be implemented. This was used to delay new regulations, and changes that resulted in regulatory relief often had this requirement waived. At the beginning of the second Reagan administration, the OMB was given more power. All regulatory agencies were required to submit proposals each year for all major environmental regulation, which allowed OMB to reduce regulatory efforts before such proposed regulations became public.
Within a few months after entering the White House, Reagan removed the solar panels that his predecessor Carter had installed on the roof of the White House's West Wing. "Reagan's political philosophy viewed the free market as the best arbiter of what was good for the country. Corporate self-interest, he felt, would steer the country in the right direction," the author Natalie Goldstein wrote in "Global Warming.". (In October 2010, President Obama planned to reintroduce the solar panels on the White House roofs, after 31 years.)
The George H. W. Bush Administration (1989–1993)
Environmental policy during the first Bush administration contained a mixture of innovation and restriction. George H. W. Bush appointed an environmentalist, William Reilly, to head the EPA, along with others with strong environmental inclinations. Before accepting the appointment, Reilly secured the President's agreement to support his pro-environment agenda and his access to the White House, but competing interests caused conflicts. In other departments with environmental responsibilities and in White House offices, however, he appointed people who were more development-oriented, such as John H. Sununu, Richard Darman, and Dan Quayle. While considerable regulation was initially passed, during his last two years in office he severely restricted regulation, and in 1992, a total freeze was put on new regulations.
On July 21, 1989, Bush sent a bill to Congress proposing amendments to the Clean Air Act. The core of the amendments were meant to reduce acid rain by limiting sulfur dioxide emissions from coal burning plants, to bring eighty urban areas up to current air quality standards and to lower emissions from over two- hundred airborne toxic chemicals. Bush supported a cap-and-trade system to reduce sulfur dioxide emissions, a strategy which allowed utilities flexibility in meeting the laws goal. The final version of the bill included new regulatory programs for control of acid rain and for the issuance of stationary source operating permits, and expansion of the regulatory program for toxic air emissions. Congress passed the bill with large majorities in both houses, and Bush signed the bill on November 15, 1990.The private-sector Council on Competitiveness (distinct from the federal Competitiveness Policy Council) was formed in 1989 to play the same role as the previous Task Force on Regulatory Relief that Bush had served on in the Reagan administration, which was to negotiate on behalf of the President for regulatory relief with the heads of federal agencies. This executive branch agency negotiated with EPA Administrator Reilly, leading to industry-favorable rulings such as the redefinition of wetlands and the allowance of untreated toxic chemicals in local landfills (this was later reversed). While previous regulatory-relief efforts, such as Reagan's use of OMB, were subject to Congressional oversight, the Council on Competitiveness was independent and was not required to keep records of its proceedings. The Council on Competitiveness received its authority from a White House memorandum and its members included Vice President Dan Quayle, Treasury Secretary Nicholas Brady, Commerce Secretary Robert Mosbacher, and White House Chief of Staff John Sununu.In 1992, Bush opposed international efforts at the Earth Summit in Rio de Janeiro, Brazil by refusing to sign the biodiversity treaty and lobbying to remove all binding targets from the proposal on limiting global carbon dioxide emissions.
The Clinton Administration (1993–2001)
The Bill Clinton administration promised a change in the direction of environmental policy. Al Gore, the Vice President, and appointees such as Carol Browner at EPA and Bruce Babbitt at Interior were all encouraging from an environmental standpoint. Clinton eliminated the Council on Competitiveness, returning regulatory authority to agency heads, and Clinton and Gore argued that environmental protection and economic growth were not incompatible.Clinton's record as the governor of Arkansas, however, suggested that he would be willing to make compromises. Through a number of middle-of-the-road positions, on issues such as grazing fees in the West and clean-up of the Everglades, and through his support of the North American Free Trade Agreement in 1993 and the General Agreement on Tariffs and Trade in 1994, Clinton dissatisfied some environmentalists. Specifically, the Green Party and its candidate Ralph Nader were outspoken in their criticism of Clinton's environmental record.
Despite criticism from some environmental hardliners, the Clinton administration had several notable environmental accomplishments. Clinton created the President's Council on Sustainable Development, signed the Kyoto Protocol (although he did not submit the treaty to the Senate), and stood firm against Republican attempts after the 1994 elections to roll back environmental laws and regulations through the appropriations process. During the Clinton administration, the EPA's budget was increased, and much of the country's natural resources were put under greater protection, such as the restoration of the Everglades and the increase in size of the Everglades National Park. Important U.S. Supreme Court cases from this period included United States v. Weitzenhoff, et al.
The George W. Bush Administration (2001–2009)
The President’s Initiative
In 2002 President George W. Bush announced an environment legislative initiative titled Clear Skies. The Clear Skies proposal's stated goals were to reduce three pollutants: sulfur dioxide, nitrogen dioxide, and mercury. Clear Skies was to use a market based system by allowing energy companies to buy and trade pollution credits. The president argued that since Clear Skies would use a market based system, millions of tons of pollution would be eliminated when compared to the Clean Air Act. However, the president's critics argued that the Clear Skies policy would weaken provisions in the Clean Air Act.The main provisions of the 1970 Clean Air Act were to control air pollution on a national level and an initiative program called New Source Review (NSR). The NSR initiative would require power plants to upgrade to anti-pollution technologies before they can expand existing facilities and add new technologies. The Clear Skies initiative proposed by the Bush administration main intention was to remove the New Source Review provision and deregulate some of the standards that the Clean Air Act required energy facilities to meet. The proposed removal of the NSR prompted nine northeastern states to file suit in federal court to prevent the new ruling. Advocates against Clear Skies viewed the removal of NSR as a weakening of existing laws and an “assault on the Clean Air Act”. Environmental advocates and their political allies would eventually prevail in defeating the Clear Skies initiative.
Global environmental policy
President Bush refused to sign the Kyoto Protocol, citing fears of negative consequences for the U.S. economy. Bush also cited that developing countries like India and China were exempt from Kyoto's requirements as a reason for his opposition. When President Bush withdrew from the Kyoto Protocol, many of his critics alleged that he made his decision on ideology rather than on science. Suzanne Goldenberg from the Guardian wrote the Bush years are seen "as concerted assault, from the administration's undermining of the science". Bush's own Environmental Protection Agency head Christine Todd Whitman said the decision to walk away from Kyoto was "the equivalent to 'flipping the bird,' frankly, to the rest of the world". Also, Eileen Claussen, president of the Pew Center on Global Climate Change said the idea of a head of state putting the science question on the table was horrifying. Bush's critics included Jonathon Dorm, Earth Policy Institute and NASA scientist James Hansen. Dorm contended that the administration made a "covert attempt to silence the science" while Hansen alleged the administration was "trying to block data showing an acceleration in global warming".
President Bush's refusal to seek ratification from the Senate was widely criticized by his opponents in the United States Congress and in the media. Some of President Bush's harshest critics claim his decision taken on the Kyoto Protocol was due to his close relationship with big oil companies. Greenpeace obtained briefing papers that revealed the administration thanked Exxon for their "active involvement" on climate change. The Guardian reported documents revealed Under-secretary Paula Dobriansky "sound out Exxon executives and other anti-Kyoto business groups on potential alternatives to Kyoto". However, in 2003, Exxon head of public affairs Nick Thomas denied taking any position on Kyoto.
Campaign promise on the environment
In 2001, President Bush broke a campaign environment promise by reversing a promise he had made during his presidential campaign to regulate carbon dioxide emissions from coal-burning power plants. Governor Bush pledged power plants would have to meet clean-air standards while promising to enact tougher policies to protect the environment. The broken campaign promise was seen as a betrayal by environmental groups. The president's reversal on regulating carbon dioxide emissions was one of a series of controversial stands on environmental issues. For example, the Bush administration ruled that factory farms can claim they do not discharge animal waste to avoid oversight from the Clean Air Act.
Environmental regulation
The actions taken during the Bush administration were seen by environmentalists as ideological rather than scientifically based. The criticism stemmed from the president's shifting views while he was a candidate for president and executive action taken as president. The Bush presidency was viewed as being weak on the environment due to ideology and close ties with big oil. However, Eli Lehrer from the Competitive Enterprise Institute contended that the Bush administration issued more regulations than any other administration in U.S. history.
Reducing air pollution
During President Bush's eight years in office he utilized his executive powers for a number of issues. In an effort to bypass NSR requirements, the president took executive action to “curb plant-by-plant permit reviews”. He also ordered the EPA to develop a regional regulation using a market-based system. The EPA came-up with the Clean Air Interstate Rule (CAIR). CAIR was aimed at reducing 70 percent of pollution from coal burning plants. However, CAIR would later be struck down by U.S. Circuit Court of Appeals for the District of Columbia in 2008. Additionally, The Clean Air Mercury Rule (CAMR) was also introduced. CAMR was created for the purpose of establishing a permanent national cap on mercury emissions.
Bush environmental legacy
In the later years of the Bush administration, the president engaged in a series of environmental proposals. He called on countries with the largest greenhouse gases to establish a global goal to control emissions and in 2008 initiated the U.S to join the United Nations to negotiate a post-2012 global climate plan after Kyoto expires. The plan calls for inclusion of both developed and developing nations to address greenhouse gas emissions. In addition, during the later years, President Bush's position on climate changed. The president had taken steps in the later years of his presidency to address environmental criticism of his broken campaign promises, and argued that the Kyoto protocol was a plan to cripple the US economy. This stern position caused him serious credibility challenges on environmental issues both nationally and globally.
The Obama Administration (2009–2017)
Environmental issues were prominent in the 2008 presidential election. Democrat Barack Obama obtained a clear lead above his rival, Republican Senator John McCain, on the environment, winning the backing of 'all mainstream environmental groups' and public confidence on the issue. Upon election, appointments such as that of the Nobel prize-winning physicist Steven Chu were seen as a confirmation that his presidency was serious about environmental issues.One example of a new initiative by the Obama Administration is the America's Great Outdoors Initiative, which preserves and highlights numerous natural features, and also raises public awareness.
The Trump Administration (2017–2021)
The environmental policy of the Trump administration represents a shift from the policy priorities and goals of his predecessor, Barack Obama. While Obama's environmental agenda prioritized the reduction of carbon emissions through the use of clean renewable energy, the Trump administration has sought to increase fossil fuel use and scrap environmental regulations, which he has often referred to as an impediment to business. Trump has announced plans to pull the United States out of the 191 nation Paris agreement. At a presidential debate in March 2016, Trump said he would eliminate the EPA as a part of his plan to balance the budget.Trump's "America First Energy Plan", focuses on increasing the use of fossil fuels without mentioning renewable energy. It would repeal many Obama policies including the Climate Action Plan and the Clean Water Rule, and limit the EPA's mission to protecting air and water quality. Within days of taking office he signed executive orders to approve two controversial oil pipelines and to require federal review of the Clean Water Rule and the Clean Power Plan. He also invited American manufacturers to suggest which regulations should be eliminated; industry leaders submitted 168 comments, of which nearly half targeted Environmental Protection Agency rules.
Trump's appointments to key agencies dealing in energy and environmental policy reflected his commitment to deregulation, particularly of the fossil fuel industry. Several of his cabinet picks, such as Rick Perry as Secretary of Energy and Scott Pruitt as EPA Administrator, were people with a history of opposition to the agency they were named to head. The Director of the Climate and Development Lab and Brown University environmental studies professor J. Timmons Roberts said in 2018, "It's been a hard year.... Literally every country in the world is moving ahead [on reducing carbon emissions] without us."
The Biden Administration (2021 – present)
The environmental policy of Biden administration is characterized by strong measures for protecting climate and environment. Nevertheless, because it requires 67 votes in the Senate so can be blocked by Republicans, the US remains the only UN member state which has not ratified the Convention on Biological Diversity.
Green New Deal proposal
This environmental policy was first proposed on February 7, 2019, by both Rep. Alexandria Ocasio-Cortez (D-NY) and Sen. Ed. Markey (D-MA). The main goal of the legislation is for the United States "to switch to 100% renewable energy in 10 years" or by 2030. In addition to addressing environmental concerns associated with climate change, the Green New Deal aims to "fix societal problems like economic inequality and racial injustice" by ensuring that everyone has access to education, clean water, and employment with benefits. It also strives to make every building energy efficient. One of the main factors for its proposal was a United Nations report released in October 2018 stating that "the world must cut greenhouse gases by almost half by 2030" to avoid the fate of irreversible damage by 2030, if the United States continues business as usual. "To stop further warming, greenhouse gases must be reduced to 350 parts per million. Carbon dioxide levels are already above 400 parts per million."The proposed United States legislation was rejected by the Senate on Tuesday, March 26, 2019, with Senate Majority Leader Mitch McConnell (R-KY) leading the voting process. The legislation received 57 "no's" and 43 "presents".
Issues
Since the environmental movement of the 1970s, the nature of environmental issues has changed. While the initial emphasis was on conventional air and water pollutants, which were the most obvious and easily measurable problems, newer issues are long-term problems that are not easily discernible and can be surrounded by controversy.
Acid deposition
Acid deposition, in the form of acid rain and dry deposition, is the result of sulfur and nitrogen dioxide being emitted into the air, traveling and landing in a different place, and changing the acidity of the water or land on which the chemicals fall. Acid deposition in the Northeast United States from the burning of coal and in the West United States from utilities and motor vehicles caused a number of problems, and was partially exacerbated by the Clean Air Act, which forced coal power plants to use taller smoke stacks, resulting in farther transmission of sulfur dioxide in the air.
During the Carter administration, the United States undertook a risk-averse policy, acting through the EPA and Council on Environmental Quality (CEQ) to research and control the pollutants suspected to cause acid deposition even in the face of scientific uncertainty. The Reagan administration was more risk tolerant. It argued that, given the scientific uncertainties about harm and exposure levels, new expenditures should not be undertaken that would curtail energy security and economic growth. During George H. W. Bush's presidential campaign, he called for new Clean Air Act legislation to curtail sulfur- and nitrogen-dioxide emissions. In 1990, after he was elected, amendments to the Clean Air Act were finally passed that cut emissions by over 12 million tons per year, set up a market-like system of emissions trading, and set a cap on emissions for the year 2000. These goals were achieved to some degree by the installation of industrial scrubbers.
While the initial costs in cutting emissions levels were expected to be over $4.6 billion for utilities and a 40% rise in electricity costs, the impact ended up being only about $1 billion and a 2–4% rise in electricity costs. Part of the reason for the relatively low costs is the availability of low-sulfur coal.
Ozone depletion
Ozone depletion is the reduced concentration of ozone in the Earth's stratosphere (called the ozone layer), where it serves to block much of the ultraviolet radiation from the sun. Chlorofluorocarbons (CFCs), which were used beginning in the 1930s in a number of important areas, were determined in 1974 to be responsible for much of the depletion of the ozone layer. Four years later, the EPA and FDA banned CFCs in aerosol cans. As research in the 1980s indicated that the problem was worse than before, and revealed a controversial massive hole in the ozone layer over Antarctica, three international agreements were made to reduce the ozone-damaging substances- the Vienna Convention, the 1987 Montreal Protocol, and a third agreement in 1990 in London. In the United States, the 1990 Clean Air Act Amendments phased out production of CFCs and required recycling of CFC products.
Although the phase-out of CFCs took almost two decades, the policy is generally seen as a success. While a crisis seems to be averted, due to the longevity of CFC particles in the atmosphere, the ozone layer is only expected to start showing sign of recovery by 2024.
Hazardous wastes
Hazardous waste regulations began in the United States in 1976 with the Resource Conservation and Recovery Act (RCRA) to govern hazardous waste from its initial generation to final disposition (cradle-to-grave regulation) and the Toxic Substances Control Act (TSCA) to anticipate possible hazards from chemicals. Following the events at Love Canal, the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, or Superfund) was enacted in 1980 to assist in the cleanup of abandoned hazardous waste disposal sites. In the mid-1980s, the Hazardous and Solid Waste Amendments (1984) and the Superfund Amendments and Reauthorization Act (1986) were passed.
The aim of hazardous waste regulation is to prevent harm from occurring due to hazardous waste and to pass the burdens of cleanup of hazardous waste on to the original producers of the waste. Some of the problems of hazardous waste regulation are that the negative effects of hazardous waste can be difficult to detect and controversial and that, due mainly to the large amount of hazardous waste that is generated (214 million tons in 1995), regulation can be difficult and costly.
Implementation has been difficult, with years sometimes passing between legislation passage and initial regulations. Superfund was passed in December 1980, just before Reagan took office. The first administrator of Superfund was Rita Lavelle who had worked for a major hazardous waste generator. The result was that her implementation of Superfund was designed mainly to delay regulation, and the subsequent controversy resulted in the resignation of Lavelle, EPA administrator Anne Burford, and several other top EPA personnel. In 1986, Congress passed the Superfund Amendments and Reauthorization Act, increasing funding to $9 billion and providing for studies and new technologies. By 1995, Superfund cleanup still took an average of twelve years per site, and costs for each site can range in the billions of dollars. Superfund, while showing improvements, has been probably the most criticized of environmental programs based on costs of remediation, implementation problems, and the questionable seriousness of the problems it addresses.
Risk control policy
Underlying the policy decisions made by the United States is the concept of risk control, consisting of two parts: risk assessment and risk management. The science behind risk assessment varies greatly in uncertainty and tends to be the focus of political controversy. For example, animal testing is often used to determine the toxicity of various substances for humans. But assumptions made about expected dosage and exposure to chemicals are often disputed, and the dosage given to animals is typically much larger than what humans normally consume. While industry groups tend to take a risk-tolerant position, environmentalists take a risk-averse position, following the precautionary principle.
Another issue is the effect that chemicals can have relative to lifestyle choices. Cancer, for example, typically surface decades after first exposure to a carcinogen, and lifestyle choices are frequently more important in causing cancer than exposure to chemicals. While the governmental role in mitigating lifestyle-choice risks can be very controversial (see Smoking in the United States), chemical exposure through lifestyle choices can also occur involuntarily if the public is not properly educated (see Endocrine disruptors).
Finally, the way that threats are presented to the public plays a large role in how those threats are addressed. The threat of nuclear power and the environmental effects of pesticides are overstated, some have claimed, while many high-priority threats go unpublicized. In order to combat this discrepancy, the EPA published a Relative Risk Report in 1987, and a follow-up report published by the Relative Risk Reduction Strategies Committee in 1990 suggested that the EPA should adopt a more pro-active posture, educating the public and assigning budgetary priorities for objectively assessed high-risk threats.
Impact
Since the major environmental legislation of the 1970s was enacted, great progress has been made in some areas, but the environmental protection has come at a high price. Between 1970 and 1996, air pollutants dropped 32% while the population grew by 29%. Other pollutants have been more difficult to track, especially water pollutants. While air and water standards have been slowly improving, in 1996 70 million people still lived in counties that did not meet EPA ozone standards. 36% of rivers and 39% of lakes did not meet minimum standards for all uses (swimming, fishing, drinking, supporting aquatic life). In the same period, the size of the National Park Service grew from 26,000,000 acres (110,000 km2) to 83,000,000 acres (340,000 km2), and the U.S. Fish and Wildlife Service expanded by over three times to manage over 92,000,000 acres (370,000 km2). In 1995, 41% of the 960 endangered species were stable or improving.
Critics of environmental legislation argue that the gains made in environmental protection come at too great a cost. A 2003 paper estimated the overall cost of environmental regulation in the United States to be about 2% of the gross domestic product. While this cost resembles that of many other countries, calculating it is challenging both conceptually (deciding what costs are included) and practically (with data from a broad range of sources). In 1994, almost $122 billion was spent on pollution abatement and control. $35 billion of that has been in direct government spending, $65 billion was spent by business, and $22 billion was spent by individuals.
See also
Environmental Racism in the United States
Climate change policy of the United States
Foreign policy of the Obama administration regarding Climate change
List of environmental agencies in the United States
List of United States federal environmental statutes
U.S. Climate Change Science Program
References
Further reading
External links
US Environmental Protection Agency
Environmental Law Institute at the Wayback Machine (archived 2009-12-11)
History of Scenic Hudson at the Wayback Machine (archived 2007-03-14) – the advocacy group which brought the landmark Scenic Hudson Preservation Conference v. Federal Power Commission case
Excerpt from "The Birth of Environmentalism" by Robert E. Taylor at the Library of Congress Web Archives (archived 2004-11-21)
Environmental Protection Bills – GovTrack.us
EPA Alumni Association: A Half Century of Progress – former senior EPA officials describe the evolution of the U.S. fight to protect the environment |
environmental design | Environmental design is the process of addressing surrounding environmental parameters when devising plans, programs, policies, buildings, or products. It seeks to create spaces that will enhance the natural, social, cultural and physical environment of particular areas. Classical prudent design may have always considered environmental factors; however, the environmental movement beginning in the 1940s has made the concept more explicit.Environmental design can also refer to the applied arts and sciences dealing with creating the human-designed environment. These fields include architecture, geography, urban planning, landscape architecture, and interior design. Environmental design can also encompass interdisciplinary areas such as historical preservation and lighting design. In terms of a larger scope, environmental design has implications for the industrial design of products: innovative automobiles, wind power generators, solar-powered equipment, and other kinds of equipment could serve as examples. Currently, the term has expanded to apply to ecological and sustainability issues.
History
The first traceable concepts of environmental designs focused primarily on solar heating, which began in Ancient Greece around 500 BCE. At the time, most of Greece had exhausted its supply of wood for fuel, leading architects to design houses that would capture the solar energy of the sun. The Greeks understood that the position of the sun varies throughout the year. For a latitude of 40 degrees in summer the sun is high in the south, at an angle of 70 degrees at the zenith, while in winter, the sun travels a lower trajectory, with a zenith of 26 degrees. Greek houses were built with south-facing façades which received little to no sun in the summer but would receive full sun in the winter, warming the house. Additionally, the southern orientation also protected the house from the colder northern winds. This clever arrangement of buildings influenced the use of the grid pattern of ancient cities. With the north–south orientation of the houses, the streets of Greek cities mainly ran east–west.
The practice of solar architecture continued with the Romans, who similarly had deforested much of their native Italian Peninsula by the first century BCE. The Roman heliocaminus, literally 'solar furnace', functioned with the same aspects of the earlier Greek houses. The numerous public baths were oriented to the south. Roman architects added glass to windows to allow for the passage of light and to conserve interior heat as it could not escape. The Romans also used greenhouses to grow crops all year long and to cultivate the exotic plants coming from the far corners of the Empire. Pliny the Elder wrote of greenhouses that supplied the kitchen of the Emperor Tiberius during the year.Along with the solar orientation of buildings and the use of glass as a solar heat collector, the ancients knew other ways of harnessing solar energy. The Greeks, Romans and Chinese developed curved mirrors that could concentrate the sun's rays on an object with enough intensity to make it burn in seconds. The solar reflectors were often made of polished silver, copper or brass.
Early roots of modern environmental design began in the late 19th century with writer/designer William Morris, who rejected the use of industrialized materials and processes in wallpaper, fabrics and books his studio produced. He and others, such as John Ruskin felt that the industrial revolution would lead to harm done to nature and workers.
The narrative of Brian Danitz and Chris Zelov's documentary film Ecological Design: Inventing the Future asserts that in the decades after World War II, "The world was forced to confront the dark shadow of science and industry." From the middle of the twentieth century, thinkers like Buckminster Fuller have acted as catalysts for a broadening and deepening of the concerns of environmental designers. Nowadays, energy efficiency, appropriate technology, organic horticulture and agriculture, land restoration, New Urbanism, and ecologically sustainable energy and waste systems are recognized considerations or options and may each find application.
By integrating renewable energy sources such as solar photovoltaic, solar thermal, and even geothermal energy into structures, it is possible to create zero emission buildings, where energy consumption is self-generating and non-polluting. It is also possible to construct "energy-plus buildings" which generate more energy than they consume, and the excess could then be sold to the grid. In the United States, the LEED Green Building Rating System rates structures on their environmental sustainability.
Environmental design and planning
Environmental design and planning is the moniker used by several Ph.D. programs that take a multidisciplinary approach to the built environment. Typically environmental design and planning programs address architectural history or design (interior or exterior), city or regional planning, landscape architecture history or design, environmental planning, construction science, cultural geography, or historic preservation. Social science methods are frequently employed; aspects of sociology or psychology can be part of a research program.
The concept of "environmental" in these programs is quite broad and can encompass aspects of the natural, built, work, or social environments.
Areas of research
Academic programs
The following universities offer a Ph.D. in environmental design and planning:
Clemson University, College of Architecture, Arts and Humanities (Now called "Planning, Design, and the Built Environment")
Arizona State University, College of Design
Kansas State University
University of Calgary (technically the Ph.D. is in "environmental design," but encompasses the same scope as the other programs)Virginia Tech until recently offered the degree program, but has since replaced it with programs in "architecture and design research" and "planning, governance, and globalization".
Fanshawe College in London, Ontario Canada offers an honours bachelor's degree called "Environmental Design and planning.
Related programs
University of Missouri, Columbia: Ph.D. in Human Environmental Sciences (PDF file) with emphasis in Architectural Studies.
Texas A & M University offers a Ph.D. in architecture that emphasizes environmental design.
Examples
Examples of the environmental design process include use of roadway noise computer models in design of noise barriers and use of roadway air dispersion models in analyzing and designing urban highways.
Designers consciously working within this more recent framework of philosophy and practice seek a blending of nature and technology, regarding ecology as the basis for design. Some believe that strategies of conservation, stewardship, and regeneration can be applied at all levels of scale from the individual building to the community, with benefit to the human individual and local and planetary ecosystems.
Specific examples of large scale environmental design projects include:
Boston Transportation Planning Review
BART – Bay Area Rapid Transit System Daly City Turn-back project and airport extension.
Metropolitan Portland, Oregon light rail system
See also
Green building
Green development
Land recycling
Passive solar building design
Sustainable development
Ecological design
References
External links
"Sustainability Toolkit: Environmental Models". asla.org. Retrieved 2017-06-08. |
glossary of agriculture | This glossary of agriculture is a list of definitions of terms and concepts used in agriculture, its sub-disciplines, and related fields, including horticulture, animal husbandry, agribusiness, and agricultural policy. For other glossaries relevant to agricultural science, see Glossary of biology, Glossary of ecology, Glossary of environmental science, and Glossary of botanical terms.
A
acre (ac)
A unit of area traditionally defined as the area of one chain (66 feet) by one furlong (660 feet), equivalent to 43,560 square feet (0.001563 sq mi; 4,047 m2), or about 0.40 hectare.
acre-foot
A customary unit of volume defined as the volume of one acre of surface area to a depth of one foot, commonly used in the United States in reference to large-scale water or soil resources. One acre-foot is equal to 43,560 cubic feet (1,233 m3).
aeroponics
agrarian system
The dynamic set of economic and technological factors that affect agricultural practices in a particular region.
agrarianism
A social or political philosophy which values rural society as superior to urban society and the independent farmer as superior to the paid worker. Agrarianism argues in favor of farming as a way of life that can shape ideal social values.
agribusiness
The business of agricultural production, including the entire range of activities and disciplines encompassed by modern food and fiber production chains and those agents and institutions which influence them.
agricultural aircraft
agricultural cooperative
Also called a farmers' co-op or simply a co-op.
Any association of farmers or agricultural businesses who voluntarily pool their resources in order to meet their common agricultural needs and goals by cooperating in a jointly owned enterprise. Agricultural cooperatives may be distinguished between "service" cooperatives, which provide inputs for agricultural production (seeds, fertilizers, fuels, etc.) or transportation and marketing services to members who run their farms individually, and "production" cooperatives, in which members run their farms jointly using shared land, machinery, or other resources; an example of the latter is collective farming.
agricultural cycle
agricultural economics
A branch of economics concerned with the application of economic theory in optimizing the production and distribution of food, fiber, and other products of agriculture.
agricultural engineering
A branch of engineering concerned with agricultural production and processing. It combines elements of mechanical engineering, civil engineering, chemical engineering, and food science, among other disciplines.
agricultural extension
The application of new knowledge and techniques obtained through scientific research to agricultural practices by educating farmers and agricultural communities, with the goals of improving the efficiency and productivity of agriculture, improving living standards in rural areas, and raising awareness of environmental issues. The term encompasses a variety of educational and outreach activities organized by professional educators from a wide range of disciplines, often with emphasis on agricultural marketing, land management, sustainability, food safety, and public health.
agricultural fencing
agricultural land
Any land devoted solely to agriculture, i.e. the deliberate and systematic reproduction of living organisms in order to produce commodities that can be used by humans. In the broadest sense, agricultural land may also include certain types of land which are used only partially or seasonally for agricultural purposes, such as pastures and wild forests. Colloquially, the term is often used interchangeably with farmland, cropland, and arable land, though these terms may also be considered technically distinct.
agricultural productivity
A measure of the economic productivity of a given quantity of agricultural land (or any other agricultural input), typically expressed as the ratio of agricultural outputs to agricultural inputs. In modern agricultural industries, "output" is often quantified as the market value of the agricultural product at the end of the production chain (i.e. immediately prior to its purchase by a consumer).
agricultural science
agriculture
The science and art of cultivating plants, animals, or other organisms in order to produce any of a variety of products that can be used by humans, most commonly food, fibers, fuels, and raw materials.
agritourism
Any primarily agricultural operation or activity that brings visitors to a farm or ranch, either for direct-to-consumer sales (e.g. farm stands and "You-Pick" operations), education, hospitality, recreation, or entertainment.
agrivoltaics
The simultaneous use of land area for both solar energy production and agriculture, by installing solar panels in the same spaces where crops are grown or animals are raised.
agrobiology
The study of plant nutrition and growth, especially as a means of increasing crop yield.
agroecology
The study of ecology as it pertains to agriculture, particularly the application of knowledge about ecological processes to agricultural production systems.
agroecosystem
An ecosystem that supports an agricultural production system, such as in a farm or garden; the network of ecological interactions that influences and is influenced by the human practice of agriculture. Agroecosystems are the basic unit of study in agroecology.
agroforestry
The intentional combination of knowledge and practices of agriculture and forestry, resulting in a system of land use in which forest trees or shrubs are grown around or among agricultural crops or pastureland, with the goal of enhancing the functionality and sustainability of a farming system. Agroforestry shares principles with intercropping but may involve complex ecological interactions between hundreds of species.
agrology
The branch of soil science concerning the production of crop plants. The term is often used interchangeably with agronomy, agricultural science, and agricultural soil science.
agronomy
The science and technology of producing and using plants for food, fuel, fiber, and land restoration.
algaculture
A specialized branch of aquaculture involving the cultivation of algae, with the goal of producing any of a variety of products that can be used by humans, including food ingredients, fertilizers, colorants and dyes, pharmaceuticals, and chemical feedstock.
animal engine
Any machine powered by an animal. Domestic animals, especially horses, mules, donkeys, oxen, and dogs, have frequently been trained by humans to provide power for various agricultural machinery and operations such as ploughing and milling.
animal unit
A standard measure, based on feed requirements, used to combine various classes of livestock according to size, weight, age, and intended use. On federal lands in the United States, one animal unit represents one mature cow, bull, steer, heifer, horse, or mule, or five sheep or goats, all over six months of age.
animal-free agriculture
Also called veganic farming.
Any agricultural practice or farming method that does not make use of animals or animal products, such as farmed animal manures. Animal-free agriculture may use organic or non-organic techniques.
apiculture
Also called beekeeping.
The maintenance of colonies of bees, commonly in human-made beehives, by humans for any of a variety of purposes, including collecting honey or other products created by bees, pollinating crops, and breeding bees for sale. A location where bees are kept is called an apiary and a person who practices apiculture is called an apiarist or beekeeper.
aquaculture
Also called aquafarming.
The cultivation of aquatic organisms, either freshwater or saltwater, including fish, crustaceans, molluscs, aquatic plants, and others, with the goal of producing any of a variety of products that can be used by humans. Branches of aquaculture include pisciculture, algaculture, and mariculture.
aquaponics
arable land
Any land which is capable of producing viable agricultural crops in its present state, and which does not require substantial clearing or other improvements apart from routine tillage operations. This may include both natural, unaltered landscapes that are fertile enough to immediately support agriculture, as well as land that has been made arable by previous modification and cultivation. Colloquially, the term is often used interchangeably with farmland, cropland, and agricultural land, though these terms may also be considered technically distinct.
arboricide
The intentional or unintentional killing of trees.
artificial daylight supplementation
artificial selection
Also called selective breeding.
The process by which humans use animal breeding and plant breeding to selectively control the development of particular phenotypic traits in organisms by choosing which individual organisms will reproduce and create offspring. Artificial selection involves the deliberate exploitation of knowledge about genetics and reproductive biology in the hope of producing desirable characteristics in descendant organisms. It is widely practiced in agriculture, but it may also be unintentional and may produce unintended results.
assarting
The act of clearing forested land in order to prepare it for agriculture or other purposes.
B
barrow
A young male pig that has been castrated.: 27
biodynamic agriculture
A type of alternative agriculture which incorporates holistic ecological approaches and aspects of organic and integrated farming but also emphasizes various esoteric perspectives, including spiritual and mystical beliefs about nature. The efficacy of biodynamic agricultural techniques lacks scientific evidence, and the practice has been labeled a pseudoscience.
biofertilizer
biofuel
Any fuel that is produced from recently living biomass, as opposed to fuels produced by slow geological processes such as fossil fuels. Biofuels such as bioethanol and biodiesel are commonly produced from agricultural energy crops.
bioturbation
The mixing and turning of soil caused by organisms moving through the soil.
boar
An adult male hog of breeding age.: 27
broadacre
An expansive parcel of land suitable for farms practicing large-scale crop production. The term is used primarily in Australia.
broadcast seeding
A method of seeding that involves scattering seed over a relatively large and imprecise area, either by hand or mechanically, as opposed to precision seeding and hydroseeding. Broadcast seeding is easier and faster than seeding in rows but usually requires more seed and may result in overcrowded and uneven distributions of plant cover. It is generally reserved for plants that do not have strict spacing or depth requirements or that are easily thinned after germination.
broadfork
broiler
Sometimes used interchangeably with fryer.
A chicken of either sex that is bred and raised specifically for meat production.
browsing
A type of herbivory in which the herbivore feeds on leaves, soft shoots, or fruits of relatively tall, woody plants such as shrubs and trees, as opposed to grazing, which involves feeding on grasses and other low-lying vegetation. Browsing may also refer to feeding on any non-grasses, including both woody and herbaceous dicots.
bumper crop
Any crop that yields an unusually large or productive harvest.
C
candling
In the poultry egg industry, the process of examining eggs for quality and defects by holding them in front of a bright light source, illuminating the internal contents of the egg through the translucent shell without having to break it open.: 34
capon
A male chicken which has been castrated or neutered before reaching maturity, allowing it to grow faster and obtain a larger adult size.: 34
care farming
The practice of farming (or of agricultural activities in general) for the purpose of providing or promoting mental or physical health or well-being, especially as a form of therapy or to aid convalescence or for social or educational services.
carryover
The supply of a farm commodity that is not yet used at the end of a marketing season and subsequently stored and made available for sale in the next marketing season. An excessively large carryover may be considered a surplus, and may cause prices to fall.
cash crop
Also called a profit crop.
Any crop that is grown so that it can be marketed and sold for profit, as opposed to a subsistence crop, which is grown for the producer's own use. While historically cash crops have often been only a small part of a farm's total yield, almost all modern crops in developed nations are grown primarily for revenue.
catch crop
Any fast-growing crop that is grown between successive plantings of a primary crop on the same land. Its practice, known as catch cropping, is a type of succession planting.
cattle
cattle cycle
The cyclical fluctuation of supply and prices observed in cattle markets, analogous to the pork cycle. In the United States, the cattle cycle refers to the approximately 10-year period during which the industry-wide population of beef cattle is alternatively expanded and reduced over several consecutive years in response to perceived changes in profitability by beef producers. Low prices occur when cattle numbers or beef supplies are high, precipitating several years of herd liquidation; as cattle numbers decline and supplies diminish, prices gradually begin to rise along with renewed demand, causing cattle producers to begin breeding cattle and expanding their herds again, restarting the cycle.
cattle prod
See goad.
center-pivot irrigation
Also called circle irrigation or water-wheel irrigation.
A method of crop irrigation in which a long line of sprinklers mounted upon or dangling from a metal frame with multiple sets of wheels rotates slowly around a pivot at the center of a field, watering a very large circular area centered on this point. Water is usually supplied by a well or an underground pipeline near the pivot, and the wheeled frame is propelled by hydraulic pressure or electric motors. A typical center-pivot line is 400 metres (1,300 feet) long and capable of irrigating a 125-acre (51 ha) circle within a 160-acre (65 ha) square, covering about 78% of the surface area; some systems can also irrigate the corners of the square by means of an end gun at the end of the line or a trailing segment of frame that swings out into the corner areas. Modern center-pivot systems are often fully automated and programmable for specific rates of rotation, variable water distribution patterns, and other precision controls.
cereal
Any grass cultivated for the edible components of its grain, composed of the endosperm, germ, and bran. The term may also refer to the resulting grain itself (the "cereal grain"). Compare pseudocereal.
certified seed
Plant seeds that have been approved by a certifying agency or agricultural retailer as meeting established standards of quality and productivity, e.g. of germination, varietal purity, sustainable sourcing, and/or freedom from contamination with disease-causing pathogens, weed seeds, and synthetic chemicals. See also registered seed.
chaff
The dry, scaly, protective casing around the seeds of cereal grains, or any other similar plant material. Chaff is generally inedible by humans but is often used as fodder for livestock or is ploughed into the soil as a type of green manure.
chemical fallow
The use of chemical herbicides to prevent the growth of vegetation on fallow land.
chemigation
Often used interchangeably with fertigation.
The practice of delivering any natural or synthetic chemical compound or mixture of compounds (such as fertilizers, pesticides, soil amendments, etc.) to crop plants via the water supply used for irrigation.
chevon
The meat of a young goat.
chillcuring
circle irrigation
See center-pivot irrigation.
citriculture
The cultivation of citrus fruit trees.
co-op
See agricultural cooperative.
cock
See rooster.
cockerel
A young male chicken, generally less than one year old.
cold frame
An enclosure with a transparent roof, built low to the ground, that is designed to protect juvenile plants and small gardens from excessively cold or wet weather. Cold frames are used to extend the growing season by acting as miniature greenhouses.
collective farming
Also called communal farming.
Any type of agricultural production in which multiple farmers or producers run their holdings as a joint enterprise using shared land, water resources, machinery, equipment, or other agricultural inputs in order to meet common needs and goals. Communal farms may be either voluntary agricultural cooperatives or mandatory state farms owned and operated directly by a central government.
combine harvester
Also simply called a combine.
A type of agricultural machinery designed to efficiently harvest a variety of different grain crops by combining three traditionally separate harvesting operations – reaping, threshing, and winnowing – into a single mechanical process. The harvested grain is stored either in an on-board compartment or offloaded into separate equipment, while the remaining straw is typically discarded on to the field.
companion planting
The practice of planting different crops in proximity for any of a number of different reasons, including as a means of controlling pests, aiding pollination, providing habitat for beneficial insects, maximizing the use of space, or otherwise increasing agricultural productivity. It is a type of polyculture.
compost
Any mixture of ingredients, commonly decomposing plant and food waste and/or other recycled organic materials, that is used to fertilize and improve soils. Such mixtures are rich in plant nutrients and beneficial organisms which can increase soil fertility and aid plant growth by acting as a natural soil conditioner, increasing the humic content of the soil, and suppressing pathogens. Often compost is made simply by allowing gatheredgreen and brown waste to decompose naturally in open-air piles for many months, though it can also be made with more precise measurements and controls.
conservation tillage
Any tillage practice which aims to reduce soil erosion and preserve natural soil conditions, generally by leaving significant amounts of crop residue to cover previously harvested agricultural land; such practices can also enhance biological pest control and reduce fuel consumption and soil compaction. Conservation tillage includes no-till, strip-till, and mulch-till systems.
contour farming
Also called contouring.
The practice of ploughing and/or planting a sloping field by following its natural contour lines, such that the resulting furrows and crop rows curve around the slope perpendicular to the direction of the force of gravity, with each remaining at approximately the same elevation for its entire length. This orientation helps prevent surface runoff and soil erosion by reducing the velocity with which water and soil moves down the slope, minimizing the formation of rills and gullies during heavy precipitation and allowing more time for the water to settle into the soil. Contour farming also reduces the runoff of agrichemicals, power consumption, and wear on machines, thereby increasing production efficiency.
contract farming
Farming or other agricultural production carried out on the basis of an agreement between the buyer or consumer and the farmer or producer. Contracts typically involve the producer agreeing to supply certain quantities of a crop or other product according to quality standards and delivery requirements specified by the buyer, and the buyer agreeing to buy the product, often at a price that is established in advance; the buyer often also agrees to support the producer in various ways, e.g. by supplying inputs, assisting with land preparation, providing production advice, and helping to transport the finished product.
controlled traffic farming (CTF)
A farming practice which attempts to manage and reduce the damage done to cultivated soils by repeated passes of heavy agricultural machinery (e.g. tractors) over the same area of land, particularly soil compaction, which often has negative consequences for numerous aspects of crop production.
controlled-environment agriculture (CEA)
Any agricultural production that occurs in a specialized, enclosed space, typically indoors, where all variables affecting production (e.g. temperature and light intensity) can be carefully managed throughout the production cycle so as to provide an optimal environment that maximizes yield or efficiency or some other production target. Indoor growing spaces such as greenhouses are common examples, and the practice is central to urban agriculture and agricultural research.
conventional tillage
coppicing
A method of forest management by which the trunks and stems of young trees are regularly cut down to near ground level, exploiting the ability of many tree species to regenerate new growth from living stumps. After a number of years of growth, the intended products of the coppiced tree are harvested and the cycle begins anew. Pollarding is a similar process carried out at higher levels on the tree; both practices are important techniques in silviculture.
copse
A forest that has been coppiced.
corporate farming
The practice of large-scale agriculture on farms owned or greatly influenced by corporations or large private businesses. The concept includes not only corporate ownership of farmland and the means of production, but also the roles such companies play in influencing agricultural education, research, and public policy through lobbying and funding initiatives.
cover crop
Any plant that is planted as soil cover rather than for the purpose of being harvested. Cover crops may be used to manage soil erosion, soil fertility, water content, weeds, pests, agricultural diseases, and biodiversity on land that is repeatedly farmed. They are commonly off-season crops planted after harvesting a cash crop in order to help conserve the integrity of the land through a fallow period.
cow
An adult female bovine animal.
creep feeding
crop
Any plant, animal, or other product of a living organism that can be grown and harvested extensively for profit or subsistence. The term may refer to the organism or species itself, the harvested parts, or the harvest in a more refined state. Most crops are cultivated in agriculture and its sub-disciplines, most commonly (but not exclusively) as food for humans or fodder for livestock; other crops are gathered from the wild.
crop residue
Any organic material left in an agricultural field or orchard after a crop has been harvested, such as stalks and stems, leaves, seed pods, etc., or after a crop is processed for consumer use, such as seeds, husks, roots, bagasse, or other byproducts of processing. Field residues may be maintained as soil cover, burned, or ploughed into the soil as green manure; process residues are often used as animal fodder or soil amendments.
crop rotation
The practice of cultivating a series of different crops in the same space over the course of multiple growing seasons, often in a specific sequence that repeats in a cycle every few seasons. The alternative to crop rotation, monocropping, may gradually deplete the soil of certain nutrients and select for highly competitive communities of pests and weeds, decreasing productivity in the absence of high volumes of external inputs such as fertilizers and herbicides. Crop rotation can reduce reliance upon these inputs by making better use of natural ecosystem services from a diverse set of crops, often improving soil quality and reducing the probability of pests and weeds developing resistances to control measures.
crop weed
Any weed or undesirable plant that grows among crop plants. See also weed of cultivation.
crop wild relative (CWR)
A wild plant taxon that is closely related to a domesticated plant taxon (e.g. a wild ancestor of the domesticated plant) and which therefore may be indirectly useful to plant breeders by presenting the possibility of introducing genetic material from the wild plant into the domestic relative by crossbreeding.
cropdusting
Also called aerial application or topdressing.
The use of an agricultural aircraft to apply protective chemicals or other amendments, especially pesticides and fertilizers, to crops from above. Such aircraft may include either fixed-wing airplanes or helicopters, but are typically highly specialized and purpose-built to distribute very large amounts of liquid product over very large land areas in a relatively efficient manner.
crop-lien system
A farm financing scheme whereby money is loaned at the beginning of a growing season to pay for farming operations, with the subsequent harvest used as collateral for the loan.
cultipacker
cultivar
cultivation
1. The act of improving an area of land for or by agriculture, especially through the deliberate growing of plants (but not necessarily excluding other types of agriculture). Land upon which plants are sown, nurtured, or harvested, or more broadly any land dedicated to agricultural purposes, is said to be cultivated.
2. Another name for tillage, especially the shallow, selective secondary tillage of row crop fields.
cultural control
custom harvesting
The contracting of independent operators of farm equipment to harvest crops, especially grains, on a particular farm. Custom harvesters provide their own combines or other machinery and often charge for their work by the acre, with additional charges for high yields.
D
damping off
A disease of newly germinated seedlings caused by any of a variety of fungi (e.g. Rhizoctonia or Aphanomyces) which spread in warm, damp conditions and parasitize roots and lower stems. Damping off is a common cause of seedling loss in greenhouses.
dead hedge
dead stock
All implements, tools, appliances, and machinery used on a particular farm; sometimes inclusive of seed, fertilizer, and feedingstuffs.
deadheading
The practice of removing dead or spent flowers from a live plant in order to encourage further flowering, to prevent seed development, or to improve the plant's appearance. See also deblossoming.
deblossoming
Also called deflowering.
The practice of removing flowers, spent or unspent, from live plants for any reason, especially to encourage or improve the subsequent growth, reproduction, health, or appearance of the plant's non-flower parts. Deblossoming is often done in order to divert the plant's limited resources away from sexual reproduction and towards vegetative propagation, e.g. by roots and runners; early in a perennial plant's life in order to allow it to establish and grow to maturity before dedicating resources to reproduction; or near the end of the growing season in order to maximize the size and quality of existing fruits, seeds, or other useful crop parts by diverting energy and nutrients away from new buds that will likely not have time to develop into useful crops anyway.
defoliant
Any herbicidal chemical which causes leaves or other foliage to detach and drop from a plant. Defoliants are sometimes used on very leafy trees and shrubs to make finding and harvesting the non-leaf crop parts easier.
deintensified farming
Any agricultural operation which was formerly intensive but has since become deliberately extensive.
dessert crop
Any crop that is (or historically was) grown or used only for special occasions, as an elite or luxury item, or for pleasure rather than sustenance. Examples of crops historically considered dessert crops include coffee, tea, sugar, cocoa, and tobacco.
detasseling
dewatering
The removal of water from a crop plant by pressing and compacting layers of plant material for long periods of time. Dewatering can be significantly cheaper than other artificial drying techniques.
dibber
Also called a dibble or dibbler.
A handheld pointed wooden or plastic stick used to make small holes in soil so that seeds, seedlings, or small bulbs can be planted in them.
digital agriculture
dipping
The process of immersing a live animal into a bath containing a liquid formulation of insecticide (and sometimes also fungicide), usually a dilute solution of organophosphorus compounds, as a means of removing lice, ticks, or other ectoparasites which may otherwise cause disease. Sheep are commonly treated in a sheep dip, and cattle in a plunge dip.
dockage
Waste material which is removed from grain as it is being processed, prior to milling.
domestication
draff
Refuse obtained as a byproduct of the distillation of grain and used as an animal feed, especially malt left over from the brewing process.
draft animal
Also draught animal.
An animal used to pull heavy loads such as wagons or ploughs, usually a horse, mule, donkey, ox, or camel.
drip irrigation
Also called trickle irrigation.
A type of micro-irrigation system that supplies water and/or fertilizers to crops by allowing it to leak slowly from perforated plastic or rubber tubes into the soil surrounding the plants' roots, with the primary goal of delivering water directly to the root zone and thereby minimizing wasting due to evaporation and runoff (often significant problems in surface irrigation and sprinkler irrigation). Drip systems distribute water through a network of valves, pipes, emitters, and flexible, lightweight tubing called drip line or drip tape, which can be positioned above or buried below the soil surface. Drip irrigation is most commonly used in small-scale outdoor operations, high tunnels, and greenhouses, where it is often much more efficient than alternative irrigation methods and has the advantage of allowing water and fertilizers to be applied gradually, uniformly, and in precise quantities to each individual plant.
dryland farming
Also called arid-zone agriculture.
E
earmark
A cut or notch made in, or a tag attached to, one or both ears of a livestock animal (most commonly cattle, pigs, goats, and sheep) as an easily visible mark of identification, usually to indicate age, sex, medical status, or ownership. Compare brand.
earthing up
See hilling.
ecological sanitation
ecology
The scientific study of interactions between biological organisms and their biotic and abiotic environments. It is an interdisciplinary field that includes biology, geography, and Earth science.
economic maturity
The optimum time at which to harvest a tree or stand of trees (or any other perennial plants), as determined by the age at which the growth rate slows enough to cause the average annual profit over the life of the stand to begin to decrease.
edaphology
The scientific study of the influence of soils on living organisms, particularly plants, and of how soils are used and modified by humans for agriculture.
edge effects
Changes in ecological characteristics (e.g. population or community structure) associated with the boundary between two dissimilar habitat types, ecosystems, or agricultural land uses, potentially affecting the biological and ecological traits of the resident plant or animal communities.
effective precipitation
The portion of the cumulative or mean total precipitation received within a specified area, on a particular farm or field, or by an individual plant during a given time period that is or becomes available for plant growth because it is stored in the soil within the rooting depth of the plants or persists on the surface long enough to eventually drain into and occupy that rooting depth before it is lost by evaporating or running off.
emblements
energy crop
Any crop grown exclusively as a source of fuel for the purpose of energy production. Such crops are processed into solid, liquid, or gaseous biofuels (as with bioethanol and biogas) which are then burned to generate power or heat for human purposes.
environmental science
ewe
A female sheep, especially one that is sexually mature.
extensive agriculture
Also called extensive farming.
Any system of agricultural production that uses small inputs of labor, fertilizer, and/or capital relative to the land area used for production, in contrast to intensive agriculture.
F
factory farming
See intensive animal farming.
fallow
1. (adj.) The condition of any arable land which is deliberately not planted or left unsown for one or more production cycles or growing seasons with the intent of allowing the soil to recover and restore depleted nutrients and other organic matter that is critical for ecological function, while retaining moisture and disrupting the life cycles of agricultural pests by temporarily removing their hosts. Fallowing is often an important technique in crop rotation.
2. (n.) Any period in which arable land is not used for cultivation.
fallow crop
A crop that is grown in widely spaced rows so that it is possible to hoe and cultivate between the rows.
family farm
A farm which on average produces a harvest sufficient to support one family, or a farm which is owned and/or operated by a single family, as opposed to farms operated as collectives, non-family corporations, or in other institutionalized forms.
farm
An area of land devoted primarily to agricultural processes with the primary objective of producing food or other crops. In the broadest sense, the term may include ranches, feedlots, orchards, plantations, smallholdings and hobby farms, fish farms, and even industrial operations such as wind farms.
farm assurance
A type of agricultural product certification that emphasizes the principles of quality assurance and signals to consumers that the certified producer has adhered to a particular set of standards and principles during production, such as in good agricultural practice.
farm crisis
A period of economic recession for an agricultural industry, characterized chiefly by low crop prices and/or low incomes for farming operations.
farm gate value
The market value of an agricultural product minus the subsequent costs of transporting, storing, marketing, and selling the product to a consumer; the net value of the product as it is at the "farm gate", i.e. upon leaving the agricultural operation, before such costs are added to the market price. The market or retail price paid by the consumer is often far higher than the amount the farmer actually receives for the product, particularly if the farmer sells wholesale to a retailer rather than directly to the end consumer as in farm gate marketing.
farm stand
Also called a farm shop.
A type of retail outlet which sells fresh produce directly from a particular farm or group of farms. Direct sales to consumers allow farmers to retain a larger portion of the resulting profit than they can usually obtain by selling to a wholesaler. See also farmers' market.
farm water
Water that is committed for use in agriculture of any type. Farm water may include water used in the irrigation of crops as well as in the watering of livestock.
farmer
A person who owns or works on a farm; more broadly, anyone who participates in agricultural production, especially the raising of field crops, poultry, or livestock.
farmers' co-op
See agricultural cooperative.
farmers' market
farming
The practice of intentionally performing an agricultural activity, such as growing crops or raising livestock, on land dedicated to the purpose, known as a farm. The term is often used very broadly to refer to many different agricultural processes of different scales and with different goals, or, in the broadest sense, as a synonym for agriculture in general.
farmland
See agricultural land.
farmstead
farm-to-table
A social movement which promotes the consumption of locally produced foods, and particularly the serving of such foods at public establishments such as restaurants and school cafeterias. This is usually accomplished by purchasing food directly from the farmers or producers (rather than an intermediate retailer), or by the restaurant or school cultivating its own food. Farm-to-table often emphasizes food traceability, sustainability, freshness, and environmental awareness. The idea is central to the practice of locavorism.
farrow
1. A young pig, or a litter of newborn pigs. See also piglet.
2. (of a pregnant sow) To give birth.: 27
fatling
A young animal, e.g. a calf or lamb, that has been fattened in preparation for slaughter.
fed cattle
Cattle at the time they leave a cattle feedlot, i.e. after fattening and finishing, when they are ready to be sold for slaughter.
feed grain
Any cereal grain grown so that it can be used as fodder to feed animals, especially livestock. Corn, barley, and sorghum are commonly grown for this purpose.
feedlot
Also called a feed yard.
A type of animal feeding operation consisting of a densely concentrated area of enclosures or "pens" containing individual animals which is used for the efficient raising, fattening, and finishing of numerous livestock prior to slaughter, especially beef cattle, but also swine, horses, sheep, and poultry.
fencerow
The area of ground immediately adjacent to a fence that is left unmowed or untilled because it is difficult or inconvenient to maneuver large agricultural machinery in this space without removing or damaging the fence. Grasses and weeds are therefore able to grow unrestricted in this area, often providing cover for birds and wild animals, unless more precise tools are employed.
fertilizer
Also fertiliser.
Any natural or synthetic material that is applied to soil or to plant tissues to supply one or more nutrients essential to the growth of plants.
field
Any area of land, enclosed or otherwise, used for agricultural purposes, such as for the cultivation of crops or as a paddock for livestock.
field day
A large public trade show for the agricultural industry at which agricultural equipment, techniques, and business ideas are exhibited and demonstrated.
filly
An immature female horse, too young to be called a mare (generally less than four or five years old).
filter strip
Also called a conservation buffer or buffer strip.
A strip of grass or other dense, permanent vegetation lining the edge of an agricultural field and acting as a buffer zone between the field and its surrounding environment, usually designed with the primary goal of controlling non-point source pollution by filtering agricultural surface runoff before it drains into an adjacent body of water, e.g. a pond, lake, stream, diversion terrace, or irrigation canal. The roots of the vegetation trap and remove agrichemicals including fertilizers and pesticides from the runoff and may also help reduce sediment erosion, thereby preventing the contamination and eutrophication of natural ecosystems.
fire farming
The use of fire to clear patches of land for cultivation. See also slash-and-burn and shifting cultivation.
fish farming
See pisciculture.
flat planting
The sowing of seed upon flat, unfurrowed land using a planter that minimizes disturbance to the smooth soil surface.
flood irrigation
Any method of surface irrigation that covers the entire cultivated soil surface with water, usually to a specific depth and for a specific duration. Flood irrigation may be carefully controlled, as with basin irrigation and border irrigation, or may simply rely on natural flooding in adjacent rivers and streams.
floriculture
Also called flower farming.
A branch of horticulture involving the cultivation of flowering plants and ornamental plants for gardens and landscaping as well as for commercial floristry.
flushing
In animal husbandry, the practice of changing the diet fed to female livestock prior to breeding, with the intention of stimulating the estrous cycle and increasing ovulation rate.: 4
fodder
Also called animal feed or provender.
Any agricultural foodstuff used to feed domesticated livestock, and more specifically food given to the animals directly (such as hay, straw, silage, and compound feeds), as opposed to that which they forage for themselves.
food chain
food security
The availability of edible food within a country or other geographic area and the ability of humans within that area to access, afford, and attain sufficient, safe, and nutritious foodstuffs, either by gathering, producing, or importing them, in order to meet their dietary needs for active and healthy lifestyles.
food systems
foodscaping
Also edible landscaping.
The practice of integrating edible plants into ornamental landscapes, cultivating them not only for the food they produce but also for their aesthetic qualities.
foodshed
food-feed system
An integrated livestock-crop production system in which crops are harvested for human consumption and then the crop residues or byproducts are used as feed for livestock, often on the same or nearby agricultural land.
foliar feeding
The practice of providing supplemental nutrition to plants by applying liquid fertilizer directly to their leaves, stems, or bark, as opposed to their roots, which are the usual target for conventional fertilizing methods. Most plants are perfectly capable of absorbing nutrients through these aboveground parts, and there may be good reasons to prefer that the nutrients travel by these routes rather than through the soil surrounding the roots.
forage
Any plant material, especially leaves and stems, eaten by grazing livestock, especially that which is grazed by animals in pastures. In a looser sense it may also include fodder (plant material deliberately cut and given to animals as food).
forcing
The practice of intentionally breaking the dormancy of a cultivated plant and encouraging germination, active growth, and/or flowering and fruiting outside of its natural growing season (e.g. in the winter). This involves exposing a seed or other propagule, or a mature perennial plant, to a specific sequence of carefully controlled environmental conditions (e.g. cold stratification) intended to simulate the environmental cues the plant normally receives at the beginning of its seasonal growth cycle (e.g. in the springtime), which trigger the internal chemical reactions that cause it to grow and develop. The term is used particularly in the indoor horticulture of plants that grow from bulbs, corms, or rhizomes, but can also refer more broadly to the off-season cultivation of any plant or propagule.
forest farming
A practice in agroforestry involving the cultivation of high-value specialty crops under a forest canopy that is deliberately modified or maintained to provide habitat and shade levels which enhance crop yields. Most crops produced by such methods are non-timber forest products or niche crops such as ginseng and certain varieties of mushroom.
free range
A method of animal farming and animal husbandry in which the animals are permitted to roam freely outdoors, rather than being confined in enclosures, for at least part of each day. Though in practice the outdoor ranging area is usually fenced-in and therefore technically also an enclosure, free-range systems offer the opportunity for extensive locomotion, fresh air, and sunlight that is otherwise reduced or entirely prevented by indoor housing systems. The term may apply to farming for meat, eggs, or dairy products; in ranching, it is sometimes used interchangeably with open range.
freemartin
An infertile female bovine animal (a cow) that shows masculinized behavior, in particular one that is born as a twin to a male animal and, despite being phenotypically female, is actually a genetic chimera, having acquired some XY cells by exchange of cellular material with the male twin in utero, causing various hormonal alterations to normal female reproductive development.
frost control
Any of a variety of measures taken to reduce or prevent damage to agricultural crops caused by extremely cold temperatures, especially plants on farms, in gardens, and in orchards. Common frost control methods include covering crop plants with cold frames, keeping soils wet with continuous irrigation, and providing supplementary heat sources such as smudge pots.
fruticulture
See pomology.
fryer
fuelwood
Any wood used or intended for use in cooking, heating, or power generation, valuable for its combustibility (i.e. its ability to produce large amounts of energy when burned). It may come from trees cultivated specifically for this purpose, or from wild trees and shrubs, either as trimmings from the woody trunks and branches of live plants or from dead logs, brush, or other woody debris.
fungiculture
The cultivation of fungi with the goal of producing any of a variety of products that can be used by humans, such as foods, medicines, or scientific research materials.
fur farming
The practice of breeding or raising certain animal species in order to harvest their fur.
furrow irrigation
A type of irrigation which relies on long, shallow, parallel channels, known as furrows, dug into the soil along the length of an agricultural field to deliver water to crops planted on the ridges between the furrows. Water is applied to one end of the furrows, which are often aligned in the direction of the field's predominant natural slope, and flows down the furrows by gravity. Furrow irrigation is particularly suited to broadacre row crops such as cotton, maize, and sugarcane.
G
garden
gardening
germination
The sprouting of a seedling from a plant seed, the development of a sporeling from a spore, or the growth of a pollen tube from the pollen grain of a seed plant.
gilt
A young female hog, usually less than one year old.: 27
gleaning
The practice of collecting unharvested crops from fields or obtaining unused agricultural products from farmers, processors, or retailers, often for distribution to food banks or charitable organizations.
glyphosate
An organophosphorus compound widely used as a post-emergent broad-spectrum systemic herbicide and crop desiccant, especially to kill annual broadleaf weeds and grasses that compete with crop plants. It is the primary ingredient in the herbicide Roundup.
goad
Also called a prod or cattle prod.
A pointed stick, sometimes electrified, used to drive or guide livestock, especially cattle, both draft animals and grazing herds.
gobbler
A mature male turkey.
good agricultural practice (GAP)
Any collection of specific principles or methods applied by agricultural producers in order to create food or non-food products that are safe, healthy, and wholesome for consumers while also taking into account economic, social, and environmental sustainability. GAPs may be applied to a wide range of production systems and at different scales, and often vary with geographical context.
grain
Any small, hard, dry seed (with or without the outer shell or other parts of the fruit) that is harvested for human or animal consumption, or the plant from which these seeds are harvested. Crops considered grains include all cereals (such as maize, wheat, and rice) as well as pseudocereals (amaranth, buckwheat, quinoa), certain legumes (soybeans and lentils), and certain oilseed plants (rapeseed and flax).
grain drying
The process of removing or reducing the moisture content of harvested grain to prevent spoilage during storage. Drying may occur by natural means, e.g. exposing the grain to air and sunshine, or by artificial fuel- or electric-powered processes, or both.
grain elevator
1. A tower containing a bucket elevator or pneumatic conveyor designed to carry harvested grain upwards from a lower level (often from some type of transport) and deposit it into a silo or other storage facility.
2. A complex of agricultural buildings containing such a tower, as well as offices, weighbridges, and storage facilities, or an organization that operates or controls multiple elevators in different locations.
grain leg
grazier
A person engaged in grazing or pastoral farming.
grazing
1. A type of herbivory in which the herbivore feeds on grasses and other non-woody vegetation, as opposed to browsing, which involves feeding on taller trees and shrubs.
2. A method of animal husbandry which relies on this type of herbivory, whereby domestic livestock such as cattle are allowed to roam freely, often on wild pasture that is unsuitable for farming, in order to graze wild grasses and other forage.
green manure
A type of manure created by leaving uprooted or dehisced crop residues to wither and decay in an agricultural field so that they can serve as a mulch or natural fertilizer. Plants used for green manure are often cover crops grown specifically for this purpose; the mature plant tissues may be ploughed and mixed into the soil while green or shortly after flowering.
Green Revolution
Also called the Third Agricultural Revolution.
The dramatic increase in agricultural production that occurred worldwide during the second half of the 20th century, primarily due to the adoption of modern scientific methods of farming and large-scale management techniques; the development of high-yielding varieties of many crop plants (especially cereal grains); the expansion of irrigation infrastructures; the mechanization of many agricultural tasks with modern agricultural machinery; and the increase in the availability and use of chemical inputs such as fertilizers and pesticides, all of which led to a marked increase in production rates, farm yields, food quality and consistency, and crop prices in most parts of the world. The Green Revolution also accordingly led to an increase in land conversion and consolidation and the emergence of mass-market industrial agriculture, as well as to concerns about sustainability and the impact of agricultural practices on public health and the environment.
greenhouse
grist
Grain that has been separated from its chaff in preparation for grinding in a mill; less commonly, the term is also used to describe grain after the process of grinding, i.e. grain that has already been ground.
gristmill
groundcover
Wild or cultivated plants covering an area of land, thereby protecting the soil beneath from erosion and drought. See also cover crop.
growing degree-days (GDD)
growing season
The part of the year during which local weather conditions (i.e. temperature and precipitation) permit the normal growth of plants in a given location. Though the timing of plant growth and reproduction can vary widely by species, many local plant species show considerable phenological overlap, and so the term is commonly used to refer to a single generic season that encompasses a majority of the plants or crops growing in a given location. In many places, the local "growing season" is defined as the period of time between the average date of the last frost (typically in the spring or early summer) and the average date of the first frost (typically in the autumn).
H
hake bar
A coupling device which links a trailed plough to a tractor.
hardpan
Also called plough pan.
Any dense, resistant layer of soil, usually found below the uppermost topsoil, that is difficult to dig or till and largely impervious to water and root growth. Hardpans can vary in thickness and depth below the surface; some form naturally from deposits such as silica that fuse and bind the soil particles, while others are human-made such as those caused by chronic soil compaction as a result of repeated ploughing, heavy traffic, or pollution.
harrow
A farm implement used to break up and smooth out the surface of a plot of soil. Harrowing often follows coarser ploughing, generally with the purpose of breaking up large lumps of soil so as to provide a better tilth that is suitable for use as a seedbed, and sometimes also to remove weeds or to cover seed after sowing.
harvest index
The weight of the harvested grain portion of a grain crop as a percentage of the total above-ground dry weight of the crop plants at maturity.
harvested acres
For a particular crop, the number of acres of cropland that are actually harvested, as opposed to planted but not harvested. At the national level, this statistic is usually lower than the total number of planted acres due to abandonment caused by weather damage or low market prices at some point during the growing season, or because the crop is repurposed for livestock grazing.
harvesting
The process of gathering a ripe crop from an agricultural field. Harvesting is often the most labor-intensive activity of a growing season or utilizes the most expensive and sophisticated farm machinery. In general usage, the term may include immediate postharvest practices such as cleaning, sorting, packing, and cooling of the gathered crops.
hay
Grasses, legumes, or other herbaceous plants that have been cut, dried, and stored as fodder for animals, especially livestock.
hay fever
Another name for allergic rhinitis, a type of inflammation predominantly in the nose and eyes resulting from an immune reaction to any of a wide variety of airborne allergens, including but not limited to pollen grains from grasses and other plants. The term is often used to describe the sudden onset of symptoms following inhalation of the dry particulate dust associated with manufacturing and handling hay, though it is now also used colloquially to refer to allergic reactions of any cause.
hay knife
A handheld agricultural tool consisting of a long-bladed knife, sometimes with a serrated edge, that is used for cutting or sawing through compact bundles, sheaves, or bales of hay or silage.
hay rake
A type of rake used to collect cut hay or straw into windrows for later collection (e.g. by a baler) and/or to "fluff up" the hay so that it dries more quickly.
hay steaming
haycock
Also called a haystack or simply a stack or cock.
A small pile of hay, uncompressed and left to dry in a field.
haylage
Silage with a high dry-matter content, made from the same grasses or legumes from which hay is made (such as alfalfa, timothy, and others) but not dried as much as hay nor as little as direct-chop/green-chop silage (before being ensiled).
hayloft
Also called a haymow.
A storage area in the upper part of a barn or stable, used for storing hay or other fodder.
hayrack
hayseed
The seed of grasses and legumes that are used for producing hay, especially when shaken from mown hay, and therefore sometimes inclusive of weed seed.
headland
Also called a turnrow.
A wide strip of land at each end of a planted field used for turning or maneuvering large farm machinery such as ploughs. The headland runs perpendicular to the lay of the field and may itself be planted at the beginning of the season; in such cases it is usually the first area to be harvested in order to minimize crop damage.
headrace
hectare (ha)
A metric unit of area defined as the area of a square with sides of 100 metres (330 feet), equivalent to 10,000 square metres (0.003861 sq mi), or about 2.47 acres.
heifer
An adult cow that has not yet given birth to her first calf.
heliciculture
The cultivation of land snails with the goal of producing any of a variety of products that can be used by humans, usually food or cosmetics, or as a form of biological pest control.
hemerochory
The distribution by humans, intentionally or unintentionally, of cultivated plants or their seeds, cuttings, or propagules into habitats they have been unable to colonize through their natural mechanisms of spread but in which they are nonetheless able to survive and propagate without additional support from human activities.
hen
1. A mature female chicken or other fowl.
2. A female lobster.
herbicide
high tunnel
See polytunnel.
high-yielding variety (HYV)
hill farming
A type of extensive agriculture practiced in hilly, upland areas unsuitable for intensive management, typically involving the grazing of livestock and especially sheep.
hilling
Also ridging or earthing up.
The piling of soil around the base of a plant, creating a small mound or ridge of earth, so as to aid plant growth in any of a variety of ways, often to improve retention of water or soil amendments.
hinny
A domestic hybrid equine that is the offspring of a male horse and a female donkey, i.e. the reciprocal cross to the mule.
hobby farm
A small farm or smallholding that is operated without the expectation of it being a primary source of food or income. Hobby farms may provide a secondary income or may be maintained for other reasons, e.g. in order to provide recreational land for people or animals, or simply for the pleasure of doing so, i.e. as a hobby or passion project.
hog
Another name for a pig or domesticated swine, especially one weighing at least 120 pounds (54 kg) and being prepared for market.
hog off
To harvest a grain crop by allowing domestic pigs to eat it when the grain is nearly ripe, often because it is a poor crop that is not worth harvesting for market.
hogget
A domestic sheep between one and two years old that has not yet been sheared, or the meat or wool of such an animal.
homegrown
Cultivated or produced locally, as with crops or livestock raised on one's own property (especially on land that also serves as the grower's place of residence, e.g. in a household garden), on a nearby farm, or in the same state or nation where they are offered for sale and consumption.
honey plant
Any plant used by bees as a source of nectar for making honey, especially one that imparts a distinctive flavor to the honey made from it; examples include alfalfa, buckwheat, clover, goldenrod, mesquite, and sumac.
honey wagon
See manure spreader.
hoophouse
See polytunnel.
horticulture
The cultivation of plants for any purpose, including for food, materials, and decoration. Horticulturists apply a variety of knowledge, skills, and technologies relevant to plant growth and propagation, typically in intensively managed gardens, in order to grow plants for subsistence purposes, for profit, for scientific research, or for personal or social needs.
hotbed
An area of decaying organic matter (e.g. manure) that is warmer than its surroundings as a result of the decomposition of organic substances by microorganisms. Hotbeds enclosed by a small glass cover are often used as a kind of natural hothouse.
hothouse
A heated greenhouse.
hundredweight (cwt)
husbandry
hybrid
An offspring resulting from sexual reproduction between parent organisms belonging to different breeds, strains, varieties, species, or genera, thereby combining different biological characteristics in a single organism. The traits of hybrids are often mixtures of their parents' traits or are intermediate between them, though they may also differ substantially from either parent, as with hybrid vigor.
hybrid vigor
Also called heterosis or outbreeding enhancement.
Improved or increased size, strength, durability, yield, or any other biological function or quality in a hybrid offspring, relative to the same characteristics as observed in its parents.
hydroponics
hydroseeding
I
incubator
In the poultry industry, a heated space in which newly laid eggs are placed in order to keep them warm and sheltered prior to hatching, simulating natural avian incubation in a controlled environment at optimal temperature and humidity and sometimes featuring an automated mechanism capable of periodically turning the eggs as well.
indicator species
Any species whose natural (i.e. uncultivated) presence or status can reveal the qualitative health or condition of its local environment, often by suggesting the existence of one or more specific environmental characteristics, e.g. wetness, salinity, acidity, etc.
industrial agriculture
industrial crop
Also called a technical crop.
Any crop that is specifically grown in order to yield a useful product for human industrial processes, such as fuels, fibers, oils, rubber, chemicals, resins, waxes, or dyes; the term generally also includes energy crops.
input
integrated farming
intensive agriculture
Also called intensive farming.
Any system of agricultural production that uses relatively large inputs of labor, fertilizer, and/or capital per unit land area and is, accordingly, characterized by high production outputs, in contrast to extensive agriculture. In the developed world, most commercial agriculture is intensive in one or more ways.
intensive animal farming
intercropping
Also called interculture.
A type of multiple cropping involving the cultivation of two or more crops in proximity, usually with the goal of producing a greater yield within a given area of land by making use of resources or ecological processes that would otherwise not be utilized by a single crop.
irrigation
The application of controlled amounts of water to plants at needed intervals, especially for the purposes of growing agricultural crops, maintaining landscapes, or revegetating disturbed or drought-affected soils. Irrigation systems may also be used as a means of protecting crops from frost, suppressing the growth of weeds, preventing soil consolidation, cooling livestock, and controlling airborne dust.
J
jenny
Also called a jennet.
A female donkey.
L
lamb
1. A young sheep, usually less than one year old.
2. The meat from a young sheep less than one year old; or, in common usage, from a sheep of any age.
land improvement
landrace
A traditional domesticated variety of a crop species that has become locally adapted over time to its specific natural and agricultural environment and has remained isolated from other wild and domesticated populations of the species. Landraces are often distinguished from cultivars and breeds in the standardized sense, although the term landrace breed is sometimes used when referring to cattle. Compare heirloom variety.
layer
A mature female chicken that lays eggs regularly. A good layer typically produces 200–250 eggs per year.: 35
leaching
liming
The application of calcium- and magnesium-rich minerals (collectively known as lime) to soil, in any of a variety of forms, including marl, chalk, limestone, burnt lime, or hydrated lime, usually as a means of increasing soil pH. By acting as bases, these materials can help to neutralize very acidic soils, improving plant growth and increasing the activity of soil microbes. Structure liming can also improve aggregate stability in clay soils.
livestock
Any domesticated animals raised in an agricultural setting in order to produce labor and/or agricultural commodities such as meat, milk, eggs, fur, leather, and wool. In certain contexts the term may be used more narrowly to refer exclusively to animals that are bred for consumption, or only to farmed ruminants such as cattle and goats; sheep, pigs, and horses are also often considered livestock, while poultry and fish are usually excluded.
living mulch
lodging
The tendency of the normally erect stems of certain crop plants, especially cereal grains such as wheat, rye, and barley, to bend over and break near ground level and become flattened against the ground, which makes them very difficult to harvest and can dramatically reduce yield. Lodging is most commonly caused by adverse weather conditions such as heavy rainfall, hail, and strong winds, but may also occur due to trampling by animals.
lynchet
Also linchet.
A type of agricultural terrace made from earth, or a strip of green, unploughed land left between two areas of ploughed land, often used to mark a temporary boundary between fields.
M
malt
manure
Any organic matter that is used as an organic fertilizer in agriculture, typically consisting of animal excreta, compost, and/or plant material. Manures contribute to soil fertility by adding organic compounds and nutrients such as nitrogen which are essential for plant growth and for the development of ecological networks with soil microorganisms.
manure spreader
Also called a muck spreader or honey wagon.
A machine used to distribute manure over an agricultural field as fertilizer. Modern manure spreaders typically consist of a trailer towed behind a tractor with a conveyor and/or rotating mechanism driven by the tractor's power take-off.
marc
The solid residue that results from processing fruits, sugarcane, or sugar beets, and in particular from trampling and squeezing grapes or olives to extract juice. Marc residues have found many uses, including as livestock feed.
mare
A mature female horse, donkey, or other equine animal.
mariculture
A specialized branch of aquaculture involving the cultivation of marine organisms in the open ocean, enclosed sections of the ocean, or saltwater tanks or raceways, with the goal of producing any of a variety of products that can be used by humans, most commonly foods but also non-food products such as jewellery and cosmetics. Mariculture includes the farming of marine fish, shellfish, molluscs such as clams and oysters, and seaweed, among many other organisms.
mast
The fruit of forest trees and shrubs, e.g. acorns and nuts, especially when accumulated on the ground.
maverick
An unbranded calf, cow, or steer on open range, especially one separated from its mother.
meadow
An open field vegetated primarily by native grasses, herbs, and other plants, with few or no trees and shrubs. Meadows may occur naturally but may also be maintained or artificially created by humans for the production of hay or fodder or to serve as pasture for livestock.
mechanized agriculture
Also mechanised agriculture.
The use of agricultural machinery to mechanize the work of agriculture, thereby substantially increasing the productivity of an agricultural operation. Modern mechanized agriculture may make use of tractors, combine harvesters, aircraft, computers, and satellite imagery, among other technologies.
merchantable volume
In silviculture, the amount of wood in a tree or stand of trees (typically expressed in units of volume, e.g. board-feet) that is of a quality suitable for harvesting and marketing as lumber. The term is most commonly used to describe an estimated yield with respect to a particular economic context, which may vary as market conditions and consumer preferences change.
middlings
milking parlor
An enclosed, dedicated space where dairy animals are milked.
mill
Any structure or device used to break solid materials into smaller pieces by grinding, crushing, or cutting.
minimum tillage
A type of conservation tillage designed to conserve soil quality by minimizing the amount of soil manipulation necessary for successful crop production, typically by completely avoiding primary tillage and practicing only minimal secondary tillage.
minor crop
A crop plant that is high in value but is not widely grown. Many fruits, vegetables, and tree nuts may be considered minor crops.
monocropping
Also called continuous cropping.
The practice of growing a single crop repeatedly on the same land for many consecutive growing seasons. Monocropping allows farmers to optimize their time and labor by applying the same inputs, growing methods, machinery, pest controls, etc. to the same crop in the same spaces year after year, but also forgoes the potential benefits of natural diversity and may eventually prove unsustainable by exhausting soil nutrients and requiring increasingly large inputs to compensate.
monoculture
The practice of growing or raising a single crop or livestock species, variety, or breed on a particular area of land at a time. Contrast polyculture.
mulch
Any layer of material applied to the surface of soil, especially for the purpose of conserving soil moisture, improving soil health and fertility, reducing weed growth, and enhancing the soil's aesthetic appeal. Mulches are usually organic in nature (e.g. bark chips, manure, and compost) but plastic sheeting may also be considered a type of artificial mulch.
muley
A polled cow.
multigerm seed
Any type of seed product sold as a cluster of seeds fused together and which produces more than one plant when it germinates, after which the multiple plants are typically reduced to individual plants by a process called singling.
multiple cropping
The practice of growing two or more crops on the same area of land in the same growing season (as opposed to growing only one crop); the crops may be harvested at the same time or at different times. It is a form of polyculture. See also companion planting.
N
natural growth promoter (NGP)
net farm income
The return, both monetary and non-monetary, to farm operators for their labor, management, and capital, after all production expenses have been paid; i.e. gross farm income minus production expenses. It includes net income from sales of the farm's agricultural products as well as net income attributed to the rental value of farm dwellings, the value of any commodities consumed on the farm, depreciation, and inventory changes. The term is used primarily in United States agricultural policy.
no-till farming
Any method of growing crops or maintaining pasture without disturbing the soil through tillage, and typically involving minimal or no seedbed preparation. Though soil tillage is widely practiced in modern agriculture, proponents assert that in certain contexts no-till or low-till techniques can increase the soil's retention of water and organic matter and reduce soil erosion.
non-program crop
Any agricultural crop or commodity not covered by a federally funded commodity program. Contrast program crop.
northern vigor
The phenomenon by which certain varieties of plants adapted to high-latitude climates produce hardier, better-tasting, or higher-yield crops when grown in lower-latitude climates. The effect has been observed in many types of produce grown in the northern United States and Canada, including potatoes, strawberries, and garlic.
nurse crop
Any annual crop plant used to assist in the establishment of a perennial crop. Nurse crops may help to reduce the incidence of weeds, prevent soil erosion, and shade the perennial crop's seedlings from excessive sunlight; often the nurse crop itself is harvested for a particular product.
nutrient pollution
The contamination, particularly of surface water sources, by excessive inputs of nutrients such as nitrogen and phosphorus. Sources of nutrient pollution include surface runoff from agricultural fields and pastures (where large quantities of nutrient-rich fertilizers are commonly applied), discharges from septic tanks and feedlots, and emissions from combustion.
nursery
O
olericulture
The cultivation of vegetables (i.e. non-woody herbaceous plants) for food, or the science that studies the growing of these plants as edible produce.
on-the-hoof
(of livestock) Sold live for slaughter.
once grown seed
Seed obtained from plants that have been grown from a certified seed intended for use by the farmer on his own farm, and not for resale.
once-over tillage
An operation in which a field is tilled and planted simultaneously or in quick succession.
open
(of livestock) Fertile but not yet pregnant; able to be impregnated.
open range
A type of rangeland on which livestock, particularly cattle, roam freely regardless of land ownership and without being enclosed by fences. Where open range is prescribed by law, the land owner (and not the animal owner) is responsible for erecting fences to keep animals off of private or public property.
orchard
Any intentional planting of trees or shrubs that is maintained for food production. Most orchards are planted with a single variety of fruit- or nut-producing tree, and are often laid out in a regular grid with wide spacing and grazed or mown grass or bare soil between individual trees to make maintenance and harvesting easy.
orchardry
The cultivation of trees or shrubs in an orchard, with the goal of producing any a variety of products that can be used by humans, especially foods.
organic farming
organic fertilizer
outbuilding
outfarm
out-wintering pad (OWP)
P
pannage
The practice of releasing livestock, especially pigs, into a wild forest so that they can feed on fallen mast such as acorns, beechnuts, and chestnuts.
pastoral farming
Also called livestock farming or grazing.
A sedentary form of pastoralism in which livestock are raised on the same pastureland for most or all of their lives, rather than continuously being moved as in traditional nomadic pastoralism. Pastoral farmers typically have some form of ownership of the land they use, giving them an economic incentive to improve the land to meet the needs of their animals (e.g. by irrigation).
pastoralism
A type of animal husbandry in which herds of domestic animals are released onto large areas of vegetated outdoor land, known as pastures, for grazing, traditionally by fully or partially nomadic peoples who move around with their herds, and generally in places where environmental conditions such as aridity, poor soils, and extreme temperatures make growing crops difficult or impossible.
pasture
Any land used for grazing, especially enclosed tracts of farmland grazed by domesticated livestock such as horses, cattle, sheep, or swine. Pasture vegetation mainly consists of grasses and forbs and is typically grazed throughout the summer. Pasture is often distinguished from, but may in the broadest sense include, other agricultural land types such as meadows, rangelands, or other unenclosed pastoral areas.
pastureland
A type of agricultural land used as pasture for grazing animals.
pellet mill
Also called a pellet press.
A type of mill or machine press used to compress and mold bulk quantities of powdered or fine-grained material into compact, high-density, homogeneous units called pellets, which are often much easier to store, transport, and distribute than in their original form. Many agricultural materials are commonly pelletized, including fertilizers and pesticides. Compound animal feed is usually milled from a feed mixture into small pellets the size of a kernel of corn so as to ensure a uniform ration for each fed animal.
permaculture
An approach to land management that adopts arrangements observed in healthy natural ecosystems, with particular emphasis on utilizing creative design principles derived from whole systems thinking. Permaculture principles are often employed in regenerative agriculture, rewilding, and sustainable agriculture, but the concept has a wide range of applications, including in ecological engineering, water resource management, and architecture.
permanent crop
Any crop produced from a perennial plant which produces crops repeatedly over multiple seasons, rather than having to be replanted after each harvest.
pesticide
pesticide refuge
pharming
Also called molecular farming, molecular pharming, and biopharming.
The use of genetic engineering technologies to insert one or more genes that code for useful pharmaceuticals into a host plant or animal that would otherwise not express those genes, thereby creating a genetically modified organism. Crops modified in this way are sometimes called pharma crops.
pineapple pit
pinery
1. A natural or cultivated pine forest which is harvested for timber.
2. A plantation where pineapples are grown, or another name for a pineapple pit.
pioneer crop
A crop grown to improve the general fertility of a parcel of land prior to sowing another, typically more valuable crop on the same land. Farmers often permit livestock to graze the pioneer crop in the hope that their dung will add soil nutrients.
pisciculture
Also called fish farming.
A branch of aquaculture involving the raising of fish in tanks, enclosures, or hatcheries with the goal of producing any of a variety of products that can be used by humans, most commonly food.
plant breeding
plantation
A large-scale estate which specializes in farming cash crops, most commonly cotton, coffee, tea, cocoa, sugar cane, opium, fruit trees, rubber trees, and forest trees.
plastic mulch
An artificial mulch consisting of a thin film of plastic polymers, used in both crop production and landscaping for the same reasons as natural mulches, i.e. to suppress weeds, conserve water, and maintain soil integrity. Crops grow through regularly spaced holes cut in the plastic film. It is most commonly used with row crops, often in conjunction with drip irrigation.
plasticulture
The practice of using plastic materials in agricultural applications. Plastics are used for a huge variety of purposes in all types of agriculture, including as irrigation drip tape, row covers, plastic mulch, bale wrap and postharvest packaging, polytunnels, and feed troughs, among numerous others.
plough
Also plow.
Any farm implement used to loosen or overturn soil in preparation for sowing seed or transplanting, a practice known as ploughing. Ploughs typically consist of a series of blades attached to a wooden or metallic frame, often with wheels, which is then pushed or pulled either by humans, by draft animals, or, on modern farms, with a tractor.
plough pan
Also plow pan.
A hard layer in the subsoil caused by excessive compression due to repeated ploughing at the same depth over multiple consecutive seasons. See also hardpan.
plough planting
Also plow planting.
A reduced-tillage system in which a planting or seeding apparatus is mounted directly behind a plough such that a field is ploughed and sown simultaneously in a single step, with no intervening secondary tillage. See also once-over tillage.
ploughing
Also plowing.
The use of a plough in the cultivation of agricultural land. Ploughing is an ancient and fundamental agricultural technique, the primary purpose of which is to evenly distribute fresh nutrients, moisture, and air through the uppermost layers of the soil while also burying weeds and crop residues to decay. Modern ploughed fields are typically left to dry and then harrowed prior to planting. The use of a plough usually leaves the soil with a rough, unfinished look and parallel trenches called furrows; conventional, intensive ploughing practices may contribute to soil erosion and the formation of hardpan.
ploughshare
Also plowshare.
The large metal blade that is the leading edge of the mouldboard of a plough, used to cut through large amounts of soil to the bottom of the furrow. Certain ploughs have a coulter immediately preceding the ploughshare.
plug
pollarding
polled
(of livestock) Born without horns, of a species that is normally horned, e.g. in cattle, goats, and sheep. The term may refer to animals that have been selectively bred to be naturally hornless or to otherwise horned animals that have had their horn buds removed after birth by disbudding.
polyculture
The practice of growing or raising more than one species, variety, or breed at the same time and place, often in imitation of the biodiversity of natural ecosystems. Contrast monoculture.
polytunnel
Also called a polyhouse, hoophouse, grow tunnel, or high tunnel.
A type of greenhouse in the form of a typically semi-circular, elongated tunnel made from a steel frame covered with transparent polyethylene; temperature, humidity, and air circulation can be adjusted by the opening and closing of doors or vents. Polytunnels are used in similar ways to glass greenhouses and row covers, e.g. for season extension or as nurseries. Though primarily designed to provide temperature increases ranging from 5 to 35 °C (9 to 63 °F) above the outdoor air temperature, they can also protect plants (and animals) against extreme weather and the drying effect of wind.
pomology
Also called fruticulture.
The study of fruit and its cultivation.
postemergent
Occurring after the stage in a plant's life when the first leaves emerge from beneath the soil. The term is used in particular to describe a class of herbicides intended to be applied to weeds which are already leafy or established. Post-emergent herbicides such as glyphosate typically work by killing the cells of mature leaves, thereby inhibiting photosynthesis and causing the whole plant to die; they are generally ineffective on very young plants and seeds. Contrast pre-emergent.
postharvest
1. The stage of commercial crop production immediately following harvest, including cooling, drying, cleaning, sorting, packing, and/or any other processing and handling activities necessary for the crop to become marketable. Postharvest treatment largely determines a crop's final quality and how and whether it can be sold.
2. Any activities that occur after agricultural products leave or are sold from the farm or ranch where they were produced.
poult
A young turkey.
poultry
Any domesticated birds cultivated by humans for their eggs, meat, or feathers, most commonly various species of fowl, especially chickens, turkeys, ducks, geese, and pigeons.
poundage quota
A quantitative limit on the amount of an agricultural commodity (e.g. tobacco or peanuts) that can be produced and/or marketed under the provisions of a governmental price support program.
power take-off (PTO)
A device, commonly found on tractors but also sometimes on farm trucks or other vehicles, that transmits electrical and/or mechanical energy from a power source (e.g. a running engine) to an attached implement or a separate machine which is either pulled behind on a trailer or mounted on the vehicle itself. Modern tractors almost always have a power take-off, which can be connected to a wide variety of equipment to supply power for virtually any automatable agricultural task, e.g. mowing, ploughing, tilling, compacting, distributing agrochemicals, harvesting, etc.
precision agriculture (PA)
Also called satellite farming and site-specific crop management.
A large-scale agricultural management strategy based on observing, measuring, and responding to inter- and intra-field variability in crops and crop yields with the goal of optimizing returns on inputs while preserving resources. Precision agriculture relies on advanced technologies such as GPS, remote sensing, satellite imagery, multispectral imagery, and agricultural drones to collect data on numerous agricultural variables and to generate datasets and maps of spatial variability which can then be used by variable-rate (and often fully automated) applications to optimally distribute resources.
precision seeding
A method of seeding that involves placing seed with attention to precise spacing and depth, either by hand or mechanically, as opposed to broadcast seeding. Precision seeding usually requires less seed and avoids overcrowding and the need for thinning, but is best suited for plants with very high germination rates in order to make full use of the seeded area.
precleaning
Removing unwanted foreign material such as weeds, seeds, dirt, stems, and cobs from harvested grain before it is dried.
preemergent
Occurring before germination, or before the stage in a plant's life when the first leaves emerge from beneath the soil. The term is used in particular to describe a class of herbicides intended to be applied to weeds before their leaves have become established. Pre-emergent herbicides such as paraquat work by inhibiting one or more enzymes that are active in cell division only in new seedlings; they do not inhibit germination from seed itself, nor are they effective on established, mature plants. Contrast post-emergent.
prices paid index
An economic index used to monitor and indicate changes in the prices paid by farmers for goods and services used in crop and livestock production as well as those needed for farm family living. In addition to the prices of common farm inputs such as fertilizer, the index also includes interest on debt, taxes payable on farm real estate, and wage rates paid to hired labor. It is used to calculate the price of many fees and fines required by agricultural law, e.g. fees for grazing livestock on federal land.
prices received index
An economic index used to monitor and indicate changes in the prices received by farmers for their products at the point of first sale, usually the farm itself or a local market. Together with the prices paid index, it is used to calculate the parity ratio.
prilled
Pelletized and sold in the form of small, round, solid globules, as is common with many fertilizers, compound animal feeds, and other agrichemicals.
primary tillage
Any general-purpose tillage that is relatively deep and thorough and which leaves the soil surface with a rough, unfinished texture, such as ploughing, as opposed to subsequent, shallower, and more selective secondary tillage. Primary tillage is usually performed immediately after the last harvest, with the objectives of loosening, softening, and aerating the soil to a particular depth, incorporating crop residues and/or fertilizers, and killing weeds.
priming
1. The process of moistening seeds in order to initiate germination prior to sowing in soil or other substrate.
2. The process of removing ripened leaves from tobacco plants by hand.
prod
See goad.
produce
A generalized term used to refer to a variety of farm-produced food crops, usually including fruits and vegetables and sometimes also grains and other products, especially implying that such foods are fresh and generally in the same state as when and where they were harvested.
profit crop
See cash crop.
program crop
A crop for which deficiency payments are paid by a government agency to participating producers, e.g. wheat, corn, barley, grain sorghum, oats, upland cotton, and rice. Contrast non-program crop.
provender
See fodder.
pruning
The selective removal of certain unwanted plant parts or tissues, such as branches, buds, or roots, from crops or landscape plants during cultivation for any of a variety of reasons, including controlling or redirecting growth, improving or sustaining the plant's health or appearance, reducing risk from falling branches, preparing juvenile plants for transplanting, and increasing the yield or quality of harvestable flowers and fruits.
pseudocereal
puddling
pullet
An immature female chicken.
push–pull technology
An agricultural pest control strategy that utilizes the intercropping of repellent "push" plants and attractive "pull" plants to divert pests, typically insects, away from vulnerable cash crops. For example, noxious plants (e.g. catnip and Desmodium) may be planted between rows of a valuable cereal crop to repel or "push" certain herbivorous insects away from the cereal, while a more preferable trap crop (e.g. some Brachiaria grasses) is simultaneously planted around the perimeter of the field to attract or "pull" in the insects and keep them there.
R
rafter
To plough a field with furrows so that the earth removed from each furrow is turned over onto the adjacent unplowed ground.
rainfed field
An unirrigated field depending solely on natural precipitation for its water supply, generally surrounded by levees to prevent surface runoff.
raised-bed gardening
A type of horticulture in which the soil surface is raised above the surrounding ground level and usually enclosed in some way within a structure known as a raised bed. Such elevated seedbeds allow gardeners to separate their gardens from the surrounding environment and therefore easily maintain the condition and properties of the soil by optimizing density, nutrient levels, and water infiltration and drainage, and adding a barrier to the movement of pests and pathogens from adjacent natural soils; they may also be desirable because they do not require digging into the ground, which may be difficult or impractical in some places due to the presence of rocks or tree roots or the risk of damaging buried utility lines.
ram
An adult male sheep of breeding age.
ramification
ranch
rancher
ranching
The practice of raising grazing livestock such as cattle, sheep, and horses on an area of land called a ranch.
rangeland
Any grassland, shrubland, woodland, wetland, or desert area that is grazed by domestic livestock or wild animals. Rangelands are generally less intensively managed than pasture lands in that they are dominated primarily by native vegetation rather than by plants established by humans, and typically are not subjected to agricultural practices such as irrigation and the use of fertilizers.
ratooning
The practice of harvesting a crop plant (particularly a monocot species) by cutting most of the above-ground portion of the plant but leaving the roots and the shoot apices intact so as to allow the plant to recover and produce a fresh crop in a subsequent growing season. This procedure usually can be sustained only for a few seasons, as yield tends to decline with each season. Ratoon crops include sugarcane, pineapples, and bananas.
reaping
recalcitrant seed
Seeds that cannot survive the effects of drying or freezing (generally, temperatures less than 10 °C (50 °F)) and which therefore cannot be stored for long periods of time because they tend to rapidly lose viability. Recalcitrant seeds do not acquire desiccation tolerance during development and often shed from their parent plants with a relatively high moisture content, making them especially vulnerable to moisture loss. Contrast orthodox seed.
remainder
See crop residue.
ribbon farm
riddle
To grade and sort produce (e.g. potatoes) according to size, using a sieve.
ridging
See hilling.
ripper
See subsoiler.
roaster
A large chicken raised for its meat and suitable for roasting, generally at least 12 weeks old and weighing at least 4 pounds (1.8 kilograms). Compare broiler.
roguing
The practice of identifying and removing plants with undesirable characteristics (e.g. plants that are diseased or of an unwanted shape, color, or variety) from agricultural fields, often by hand. The plants, known as rogues, are removed to preserve the quality of the desirable crop plants, often by way of preventing undesirable characteristics from propagating into subsequent generations.
roller
An agricultural implement, typically tractor-drawn, used for flattening an area of land by breaking up large clumps of soil, pushing stones into the soil, and generally creating a smooth, firm seedbed, especially following ploughing or disc harrowing.
rooster
An adult male chicken.
root pruning
The mechanical severing or trimming of plant roots, either intentionally or unintentionally, often by the passage of an agricultural implement through soil. When deliberate, it is often done so as to make a plant easier to transplant or to slow its growth.
rotational grazing
The practice of periodically moving herds of grazing livestock between enclosed sections of pasture known as paddocks, allowing the animals to graze the new paddock while the unoccupied paddocks recover and regrow vegetation, as opposed to allowing continuous grazing of the same land indefinitely or feeding the animals in a feedlot. See also crop rotation.
roughage
Any animal feedstuff with high fiber content, such as hay or straw.
row cover
Any flexible, transparent or semi-transparent material, such as fabric or plastic sheeting, that is used as a protective covering to shield plants from extreme temperatures and wind, as well as from insect damage and large herbivores. Row cover can also provide a limited amount of warming in the same way as greenhouses, by creating a microclimate for the covered plants.
row crop
Any crop that can be planted in rows wide enough to allow it to be tilled or otherwise cultivated by agricultural machinery specifically designed for that purpose. Such crops are generally sown by drilling rather than by broadcast seeding.
ruralism
The advocacy of rural lifestyles, including care of forests and nature. See also agrarianism.
S
scarify
1. To stir a soil surface with an implement possessing tines, e.g. a wire rake, but without turning the soil over completely, often to remove shallow-rooted weeds.
2. To use a sharp tool to create a nick or slit in the hard outer coat of a seed in order to aid the penetration of moisture to the endosperm and thereby speed up germination.
scion
An aerial or above-ground plant structure, e.g. a stem or branchlet, that is grafted onto the rootstock of another plant.
scythe
A handheld agricultural tool designed with one or more curved blades, sharp on the inside edge, used for mowing grass or harvesting crops, especially reaping grain crops prior to threshing. The action of the scythe has largely been automated in modern agricultural machinery such as reapers and combine harvesters. The scythe is similar to a sickle, but has a longer handle intended to be used with two hands instead of one.
season extension
Any method that allows a crop to be grown and/or harvested beyond its natural outdoor growing season or harvest season. Season extension practices most commonly aim to overcome low temperatures or inadequate sunlight in climates where cold weather and shorter days limit the growing season in the spring and fall, but can also include techniques designed to address other seasonally varying conditions such as precipitation and consumer demand, or simply to keep mature crops alive until immediately before the harvest (as opposed to applying postharvest food preservation technologies to prevent spoilage during storage).
second
To hoe between rows of rootcrops that have previously been thinned out.
seed crop
A crop grown specifically so that seeds can be harvested from the mature plants, as opposed to crops grown for their edible or usable non-seed parts, without regard for the quality or quantity of any seeds they may produce. A secondary seed crop may be maintained alongside a primary cash crop in order to ensure an adequate supply of seeds for future plantings and/or to manage crop phenotypes by the artificial selection of seeds from parents with desirable characteristics.
seed dressing
The process of coating seeds with clay, biofertilizers, pesticides, or inert materials to give them a uniform shape and to increase their size and weight in order to improve visibility, ease of planting, germination rates, and resistance to disease.
seed drill
A mounted or tractor-drawn machine that automates the action of sowing crop seeds, usually by permitting a specified quantity of seed to pass through a hopper with each rotation of a drive wheel and then through tubes that extend to the soil surface, where the seeds are deposited and covered with soil to a precise depth. The result is a series of evenly spaced rows with seeds distributed uniformly between them.
seed enhancement
seedbed
Also called a seedling bed.
The local soil environment in which seeds are sown, often including not only the soil but also a specially built cold frame, hotbed, or raised bed used to germinate the seeds in a controlled environment before transplanting the resulting seedlings into more natural soils in a garden or field. The use of seedbeds can substantially increase germination rates.
seeding
See sowing.
seedling
The young plant that germinates from a plant embryo contained within a seed.
seedlot
A quantity of seeds, cones, or any other plant propagule of the same species, source, or quality, especially a quantity representing a single collection collected on the same date and at the same location, or even from the same individual plant.
sericulture
The cultivation of silkworms with the goal of producing silk.
set
In orchardry, the total amount of blossoms or fruits growing on one or more cultivated trees at a particular time, or the total amount produced by or harvested from one or more trees during a growing season or production cycle; an approximate quantification of a tree or orchard's total productivity.
setting
(of a brooding hen) In the process of incubating eggs.
shade house
Any structure with a roof or covering that partially obstructs light from reaching the space beneath it (e.g. a mesh fabric or wood slats), providing partial shade to plants or animals living inside. Shade houses are commonly used in horticulture to provide optimal conditions for the growth of shade-loving plants, attenuating direct sunlight and keeping temperatures cool while still permitting air circulation and enough light for photosynthesis to occur.
share
See ploughshare.
sharecropping
A type of agriculture in which a landowner allows a tenant to cultivate a portion of his or her land in return for a share of the crops produced on that land.
sharefarming
sheaf
A bundle of cut stems from a cereal crop (especially wheat) which have been bound together after reaping, traditionally by sickle or scythe but on some modern farms by machines such as a reaper-binder. Multiple sheaves are then "shocked" or arranged into conical stooks to allow the grain to dry before threshing.
shearling
1. A yearling or one-year-old sheep.
2. The skin from a recently shorn sheep or lamb that has been tanned or dressed with the wool left on, having a suede surface on one side and clipped fur on the other.
shelterbelt
See windbreak.
shifting cultivation
A type of agriculture in which specific plots of land are cleared and cultivated temporarily, often by slash-and-burn methods and for just a few growing seasons, then abandoned and allowed to lie fallow, reverting to their natural vegetation over many more seasons, while the cultivator migrates to a new plot.
shoat
A young swine of either sex, usually from the age of weaning up to five months old and weighing 50 to 160 pounds (23 to 73 kg).
sickle
A handheld agricultural tool designed with one or more curved blades, sharp on the inside edge, and typically used for reaping grain crops or cutting succulent forage for feeding livestock. The sickle is similar to a scythe, but used with one hand instead of two.
sickle feather
Either of a pair of long, curved feathers in the tail feathers of a rooster.
side dressing
silage
A type of animal fodder made from the green foliage of crop plants preserved by a process of fermentation and storage called ensilage, ensiling, or silaging, which typically involves piling and compressing large amounts of cut green vegetation in an oxygen-poor environment, such as a pit or silo or a bale wrapped tightly with plastic film. Silage is usually made from maize, sorghum, or other cereals, using the entire green plant (not just the grain).
silo
Any structure designed for storing bulk materials. In agriculture, tower silos are commonly used to store fermented grain known as silage.
silviculture
The practice of managing or directly controlling the establishment, growth, composition, and quality of natural or deliberately planted forests for any of a number of reasons, especially timber production but also for the cultivation of other forest crops.
site-specific crop management (SSCM)
See precision agriculture.
slash-and-burn agriculture
slip
A cutting, shoot, or leaf capable of vegetative propagation when rooted.
slurry
Liquid waste from animals that is stored in tanks or open-air lagoons, treated, and then distributed as a fertilizer, often by a tractor-hauled machine such as a slurry spreader.
slurry pit
Also called a slurry tank, slurry lagoon, or slurry store.
A hole, tank, reservoir, or other holding area, often lined with concrete but open to the air, into which liquid animal waste and other unusable organic byproducts of agricultural operations, known as slurry, is dumped and then allowed to decompose naturally over a long period of time into nutrient-rich fertilizer that can with further treatment be reused to fertilize crops. The decomposition process often releases toxic gases, necessitating the use of personal protective equipment when working near slurry pits.
smallholding
smother crop
A dense, fast-growing plant species capable and often cultivated specifically for the purpose of suppressing the growth of weeds by competing strongly with the weeds for access to light, water, and nutrients. An ideal smother crop competes with the weeds but not with other crops. Once it has served its purpose, it may be ploughed into the soil as green manure along with any weeds that may have survived. Smother crops are an example of biological pest control.
smudge pot
Any heat-producing device placed between the trees of an orchard to keep the trees warm and prevent the accumulation of frost on fruits and flowers, which are often highly vulnerable to damage and crop loss from cold temperatures. Historically, smudge pots burned petroleum to produce an open flame at the top of a long chimney, though colloquially the term now encompasses modern frost control methods, which usually rely on propane or electric space heaters instead.
soil amendment
Also called a soil improvement or soil conditioner.
Any product which is added to soil to improve the soil's quality, especially its fertility and mechanics, either to make poor soils more usable or to maintain soils that are already in good condition. In the broadest sense, the term includes all organic and synthetic fertilizers and all other soil additives.
soil compaction
The degradation of soil structure, generally by an increase in bulk density and/or decrease in porosity, due to externally or internally applied loads. Conventional agricultural methods, especially the repeated use of heavy machinery, often lead to the compaction of subsoil, creating impermeable underground layers that severely restrict water and nutrient cycles and thereby adversely affect crop growth, yield, and quality, not to mention numerous off-site ecological processes.
soil science
The scientific study of soil as a natural resource, including its formation, classification, and mapping; the physical, chemical, and biological properties of soils; and how these properties relate to the use and management of soils for agricultural purposes.
sow
A mature female hog.
sowing
Often used interchangeably with seeding and planting.
The process of distributing seeds (or any other type of propagule) of crop plants in or upon an area of fertile soil, either by hand or by mechanical methods. Sowing is one of the first steps in any seasonal agricultural operation.
spoilage
The process by which an agricultural product (typically food) becomes unsuitable for use or ingestion by the consumer. Natural decomposition of agricultural crops by bacteria and fungi is the most common cause of food spoilage. Depending on the type of product, shelf life may be significantly increased with proper packaging and storage and by the application of various food preservation techniques.
sprigging
sprout damage
The undesirable germination of wheat kernels that often occurs on unharvested wheat when wet field conditions persist in the final stage of crop maturation, just prior to and during the harvest. Recently cut wheat that has been left lying in the field prior to threshing is particularly vulnerable; windrowing and drying the cut stalks as quickly as possible is therefore often a high priority for wheat farmers. Sprouted kernels contain extremely high concentrations of the enzyme alpha-amylase, which can negatively impact the wheat's baking quality; the presence of this enzyme can be determined by the Falling Number test.
stag
A male bovine animal (a bull) that has been castrated relatively late in life, e.g. after reaching maturity, as opposed to the normal practice of castrating males while they are still calves. Compare steer.
staple food
Also simply staple.
A food that is eaten routinely and in such quantities that it constitutes a dominant portion of a standard diet for a given population or demographic, generally supplying a significant proportion of the basic nutrients needed for survival or health. Specific staple foods vary by location and culture, but typically are inexpensive or readily available foods that can be stored over long periods of time without decaying; examples include cereals, starchy tubers or root vegetables, meat, fish, eggs, and dairy products.
steer
A male bovine animal (a bull) that has been castrated, usually as a young calf so as to yield better-quality meat later in life. Compare stag.
stook
Also called a shock or stack.
An upright conical or tent-like arrangement of sheaves of the cut stalks of a grain crop, placed so as to keep the grain-heads off the ground prior to collection for threshing. Stooked grains typically include wheat, barley, oats, and maize.
storage clamp
Storie index
stover
The leaves, stalks, and other field residues of certain crops, especially maize, sorghum, and soybean, that are left in a field after harvesting. It may be used as a mulch or green manure, directly grazed by livestock, or dried and collected as fodder.
straw
An agricultural byproduct consisting of the dry stalks of cereal plants after the grain and chaff have been removed. Straw has numerous different uses, including as mulch, biofuel, bedding and fodder for livestock, and construction material.
strip cropping
stubble-mulching
The practice of leaving the stubble or crop residue essentially in place on a plot of cropland as a surface cover during a fallow period. Stubble-mulching can prevent soil erosion and conserve soil moisture.
stumpage
sty
subirrigation
Also called subsurface irrigation or seepage irrigation.
The practice of delivering irrigation water through ditches or pipelines directly into porous underground spaces within a crop's rooting depth; more broadly, any method of supplying water to plants from underneath the soil surface, including those grown in pots and containers, as opposed to supplying it at the surface or from above.
subsistence agriculture
Agricultural production that is practiced in order to meet the needs of the farmer or producer, as opposed to that practiced in order to generate profit by selling the agricultural products to consumers. Subsistence agriculture usually refers to farmers growing various food crops strictly for use by themselves and their families, typically on smallholdings, with the output of the farm targeted principally at fulfilling basic survival needs and local requirements, and generally implies small amounts of inputs, use of crude or traditional farming tools, reliance on unskilled labor (often family members), low yields, and little or no surplus. It primarily occurs in the developing world, though most modern subsistence farmers also participate in trade to some degree.
subsoiler
Also called a flat lifter.
A tractor-mounted farm implement used for tilling soil at depths much below the levels normally worked by mouldboard ploughs, disc harrows, or rototillers. While most such tools break up and turn over surface soil to a depth of 15–20 centimetres (6–8 in), subsoilers can often extend the action to as deep as 75 centimetres (30 in). They typically consist of three or more heavy, curved shanks with replaceable points and sometimes fitted with horizontal wings, which are used to lift and shatter the hardpan that builds up in deeper layers due to soil compaction.
suckle
To supply or take milk from the breast or udder of an animal, used especially to describe the nourishment of newborn mammals including swine and cattle.
suckling
An infant or young animal that suckles milk for most or all of its nourishment; one that has not yet been weaned.
sugar bush
summer fallow
sun-cured
Also sun-dried.
(of a food) Having been dried by a process in which the freshly harvested food (e.g. tomatoes) is exposed to direct sunlight in open air, often for multiple days, causing most of the water of the fresh weight to be lost by evaporation.
super seeder
support price
A legislated minimum price for a particular commodity, maintained through a variety of mechanisms, such as minimum import prices, nonrecourse loans, and purchase programs.
sustainable agriculture
swathe
swather
Also called a windrower.
A type of agricultural machinery that cuts hay or small grain crops and forms them into a windrow, with the goal of decreasing the time required for drying the crop to a moisture content suitable for harvesting and storage. A sickle bar or mower cuts the stems of the crop, and a reel helps the cut stems fall neatly onto a conveyor, which then deposits them into a windrow with all stems oriented in the same direction. The mown strip left behind is called the swathe.
swill
A mixture of water and discarded kitchen refuse that is fed to livestock (especially swine), or any liquid food for animals.
swine
Also called a pig or hog.
Any member of several species of omnivorous mammals of the family Suidae, having cloven hooves, flat snouts, and thick hides covered with sparse, coarse hair; the term may be applied to such animals both collectively and individually. Adult males are called boars and adult females are called sows. Domestic swine are commonly raised for their meat, known as pork, and wild swine are often hunted.
T
tailwater
1. In furrow and border irrigation, water that drains from the lower end of the furrows, having run off instead of penetrating the soil within the furrow. It is sometimes subsequently usable for the irrigation of lower-lying land.
2. The water immediately downstream of a dam, spillway, bridge, culvert, or any other hydraulic structure, or the water that passes through a tailrace.
tailrace
A manmade channel or millrace built to carry water away from a mill, water wheel, turbine, or mining operation. Compare headrace.
teart
Plants or soils that contain high concentrations of molybdenum, or the poisoning of livestock that graze on vegetation grown in these soils.
tedder
Also called a hay tedder.
A tractor-drawn machine that uses rapidly moving pitchfork-like tines to aerate or "wuffle" freshly cut hay during the process of haymaking, typically prior to windrowing. The use of a tedder allows the hay to dry more quickly, which can result in improved aroma and color.
tedding
tempering
Also called conditioning.
One of several steps in the dry milling and fractionation of certain cereal crops such as wheat and maize, in which moisture is added to the grain in order to aid the removal of bran from the endosperm.
tenant farmer
A person who operates and resides on farmland owned by a landlord. Tenant farming involves a contract between the landowner and the tenant farmer in which the landowner contributes his land and often a measure of operating capital and management in exchange for the tenant farmer's labor. The tenant farmer may also pay rent to the landowner, though the form and measures of payment and the rights the tenant has to the land vary widely with local custom.
tensiometer
An instrument used in irrigation management to measure the amount of moisture in cultivated soil and thereby provide an indicator of how much and how frequently to irrigate.
terrace
A sloped plane such as a hillside that has been landscaped into a series of flat surfaces or platforms resembling steps, i.e. successively receding as one travels uphill, and following the lateral contours of the topography. Graduated terraces are commonly built to create level spaces for agriculture in hilly or mountainous terrain. The shaping of a natural landscape into terraces is known as terracing.
threshing
The process of loosening the edible part of a grain or other crop from the chaff to which it is attached, without removing the bran. In grain cultivation, threshing immediately follows reaping.
threshing machine
Also simply called a thresher.
threshing stone
tillage
1. The preparation of agricultural soil by any of various types of mechanical agitation, whether human-powered, animal-powered, or mechanised, such as digging, hoeing, raking, ploughing, and harrowing. In this sense, it is also referred to as tilling.
2. The land that is tilled.
tilth
The physical texture, structure, and general condition of soil with respect to its suitability for planting or growing a crop, as indicated by parameters such as moisture content, aeration, soil aggregate stability, rate of water infiltration, and drainage. Soil with good tilth has large pore spaces allowing air and water movement, yet is also capable of holding water and plant nutrients for substantial periods of time. The primary objective of tillage is to improve tilth by mechanical manipulation of the soil, with the goal of increasing crop yield; fertilization, irrigation, and soil amendments can also positively impact tilth. When applied excessively, however, these practices may have the opposite effect, causing the soil to lose its structure and become compacted.
topographical tetrazolium test
Also called a TTC assay or tetrazolium test.
A test of seed viability in which ungerminated seeds are nicked and then soaked in an aqueous solution containing triphenyl tetrazolium chloride (TTC), a chemical indicator which is reduced by the activity of dehydrogenase enzymes in living tissues, changing their color from white to red, but remains unreacted in metabolically inactive or necrotic tissues. A seed embryo that stains red is assumed to be metabolically active and therefore likely to germinate. The TTC assay is used in agriculture for quick estimations of viability without having to wait for actual germination, which can often take days or weeks, but may also yield misleading or unreliable results in certain plant species.
topping
tractor
A type of heavy engineering vehicle designed specifically to deliver very high tractive effort or torque at slow speeds for the purpose of hauling a trailer or machinery, especially one which provides the power and traction to mechanize agricultural tasks. Modern tractors serve a wide variety of different functions, with many types of agricultural implements and machinery able to be towed behind or mounted on a tractor, such as ploughs, harrows, and cultivators; the tractor may also provide a source of electrical power if the implement is mechanized.
transhumance
A type of pastoralism involving the seasonal movement of livestock between fixed summer and winter pastures.
transplanter
transplanting
trap crop
Any plant that is cultivated in order to attract the attention of agricultural pests, usually insects, and thereby distract them away from nearby crops. In small farms or gardens, this practice can help save the primary crop from decimation by pests without the use of pesticides.
tree farm
A wild forest that is managed for timber production, or a plantation or nursery where trees are deliberately planted and cultivated for commercial sale, either for timber or as ornamental plants.
tree wrap
twibill
A type of mattock which pairs a vertical axe blade with a horizontal adze blade.
U
urban agriculture
U-Pick
See You-Pick.
V
Vavilovian mimicry
A form of mimicry in plants in which a weed or unwanted plant species evolves to share one or more characteristics with an agricultural crop or domesticated plant species through many generations of unintentional selection caused by the practice of removing weeds. This artificially selects against traits that distinguish the weed from the crop plant (which is preserved at all costs) such that weeds that physically or chemically resemble or otherwise follow the same phenology or growth habit as the crop plant are more likely to escape chemical or mechanical removal and thereby survive to reproduce.
veal
The meat of calves, as opposed to the beef of older cattle.
vealer
A calf, especially of a dairy breed, that is usually raised on milk only and slaughtered at less than four months old and less than 350 pounds (160 kg), to be sold as veal.
vermicompost
A type of compost produced as a result of the decomposition processes performed by certain species of earthworms as they feed on decaying organic matter. The final product, typically a mixture of decomposing vegetable or food waste, bedding materials, and worm castings, is popular as a fertilizer and soil amendment.
vermiculture
The cultivation of worms, usually red wigglers and other types of earthworms, for the purpose of producing vermicompost.
vernalization
vertical farming
The practice of growing crops in vertically stacked layers, usually indoors as a type of controlled-environment agriculture and by incorporating soilless farming techniques such as hydroponics, aquaponics, and aeroponics.
viticulture
Also called winegrowing.
The cultivation of grapes, especially for use in winemaking.
volunteer
Any plant, especially a feral crop plant or crop descendant, that grows in an agricultural field or garden unintentionally, rather than by deliberate planting by a farmer or gardener. Volunteers often grow from seeds that have been dispersed by the wind or animals or inadvertently mixed into compost. Unlike weeds, volunteers are not necessarily unwanted, and may even be encouraged to grow, especially if they show desirable characteristics that can be selected to produce new cultivars.
W
walking tractor
Also two-wheel tractor or single-axle tractor.
A self-propelled, two-wheeled tractor vehicle with a single axle, designed to pull and supply power to any of a variety of agricultural implements which are mounted upon or towed behind it, including ploughs, seeders, cultivators, harvesters, or other trailers, with the operator either walking behind it or riding the implement being towed. These tractors, usually much smaller and cheaper than four-wheeled tractors, are best suited for small fields and relatively light-duty tasks.
water rights
The right of a landowner to make use of the banks, bed, or waters of a water source, e.g. a river, stream, pond, spring, or underground aquifer. The water source need not necessarily be contained within or border on the user's property, as human-made reservoirs, aqueducts, and other water distribution systems have made it possible to allocate water to places outside of the source's natural drainage basin. Water rights are of major significance for managing irrigation, especially in arid regions, though the legal principles regulating access and usage vary widely by jurisdiction.
waterlogging
water-meadow
A flat area of grassland that is periodically flooded through the use of controlled irrigation in order to increase agricultural productivity. The technique is practiced primarily in Europe.
water-wheel irrigation
See center-pivot irrigation.
weaning
weed of cultivation
Any plant that is well-adapted to environments in which the land is cultivated for growing some other plant. See also crop weed.
weeder
Any of a variety of hand-operated, towed, or power-driven agricultural implements used to pull, cut, dig, or otherwise remove undesirable plants from an area intended for cultivation.
wet-milling
A milling operation in which plant material containing seeds is steeped in water, with or without sulfur dioxide, in order to soften the seed kernels and separate the material into its various components. The technique is commonly used to convert maize into products that can be used as animal feed.
wether
A castrated male goat or sheep.
wildcrafting
The human practice of foraging for uncultivated plants or fungi from their natural or "wild" habitats, primarily for food or medicine.
wildculture
wildling
A crop seedling which has begun growing unintentionally in nature, i.e. outside of managed agricultural lands or the area where it was intended to be cultivated.
wilting point
See permanent wilting point.
windbreak
Also called a shelterbelt.
One or more rows of closely spaced trees or shrubs planted in such a way as to provide shelter to an adjacent agricultural field from the wind, thereby protecting the area from excessive cold and soil erosion. Windbreaks commonly take the form of hedgerows planted around the edges of fields on farms, but may also be made from artificial materials such as large canvas panels. Aside from decreasing wind speeds, they may also be designed to separate farms from roads or motorways or to collect snowdrifts that will provide water to otherwise dry farmland when the snow melts in the spring.
windrow
A row of cut or mown hay or small grain crop that is allowed to dry in a field before being baled, combined, or rolled. Windrows may be built deliberately after cutting, or they may form automatically as a result of the method by which the crop is mown.
windrower
See swather.
windsnap
The breaking of the bole or trunk of a tree by very strong winds, a type of blowdown. Compare windthrow.
windthrow
The uprooting of a tree by very strong winds, a type of blowdown. Compare windsnap.
winnowing
The process or technique, performed either manually or mechanically, by which grain is separated from chaff. Traditional manual winnowing involves throwing the unseparated mixture into the air so that the wind blows away the lighter chaff, while the heavier grains fall back to the ground for recovery. In modern agriculture, winnowing is often entirely mechanized.
wool alien
X
xeriscaping
The practice of gardening or landscaping so as to reduce or eliminate the need for supplemental water from irrigation. Xeriscaping requires the selection of plants whose natural requirements are appropriate to the local climate, with a particular emphasis on water conservation, and focuses on designing and maintaining the land in such a way as to avoid losing water to evaporation and runoff.
Y
yean
To give birth. The term is used especially of sheep and goats.
yeanling
A newborn sheep or goat (i.e. a lamb or kid).
yearling
A male or female horse, donkey, or bovine animal that is too young to breed, generally between one and two years of age.
yield
Also called agricultural output.
You-Pick
See also
Index of agriculture articles
Outline of agriculture
Outline of organic gardening and farming
Outline of sustainable agriculture
References
External links
Agricultural Thesaurus and Glossary – National Agricultural Library, United States Department of Agriculture
Agriculture: A Glossary of Terms, Programs, and Laws, 2005 Edition – CRS Report for Congress, Congressional Research Service |
environmental issues in india | There are multiple environmental issues in India. Air pollution, water pollution, garbage, domestically prohibited goods and pollution of the natural environment are all challenges for India. Nature is also causing some drastic effects on India. The situation was worse between 1947 through 1995. According to data collected and environmental assessments studied by World Bank experts, between 1995 through 2010, India has made some of the fastest progress in addressing its environmental issues and improving its environmental quality in the world. However, Pollution still remains a major challenge and opportunity for the country.
Environmental issues are one of the primary causes of disease, health issues and long term livelihood impact for India.
Law and policies
British rule of India saw several laws related to the environment. Amongst the earliest ones were Shore Nuisance (Bombay and Kolkata) Act of 1853 and the Oriental Gas Company Act of 1857. The Indian Penal Code of 1860, imposed a fine on anyone who voluntarily fouls the water of any public spring or reservoir. In addition, the Code penalised negligent acts. British India also enacted laws aimed at controlling air pollution. Prominent amongst these were the Bengal Smoke Nuisance Act of 1905 and the Bombay Smoke Nuisance Act of 1912. Whilst these laws failed in having the intended effect, British-enacted legislations pioneered the growth of environmental regulations in India.
Upon independence from Britain, India adopted a constitution and numerous British-enacted laws, without any specific constitutional provision on protecting the environment. India amended its constitution in 1976. Article 48(A) of Part IV of the amended constitution, read: The State shall endeavour to protect and improve the environment and to safeguard the forests and wildlife of the country. Article 51 A (g) imposed additional environmental mandates on the Indian state.
Other Indian laws from recent history include the Water (Prevention and Control of Pollution) Act of 1974, the Forest (Conservation) Act of 1980, and the Air (Prevention and Control of Pollution) Act of 1981. The Air Act was inspired by the decisions made at Stockholm Conference. The Bhopal gas tragedy triggered the Government of India to enact the Environment (Protection) Act of 1986. India has also enacted a set of Noise Pollution (Regulation & Control) Rules in 2000.
In 1985, the Indian government created the Ministry of Environment and Forests. This ministry is the central administrative organisation in India for regulating and ensuring environmental protection.
Despite the active passage of laws by the central government of India, the reality of environmental quality mostly worsened between 1947 and 1990. Rural poor had no choice, but to sustain life in whatever way possible. Air emissions increased, water pollution worsened, forest cover decreased.
Starting in the 1990s, reforms were introduced. Since then, for the first time in Indian history, major air pollutant concentrations have dropped in every 5-year period. Between 1992 and 2010, satellite data confirms India's forest coverage has increased for the first time by over 4 million hectares, a 7% increase. In August 2019, the Indian government imposed a nationwide ban on single-use plastics that will take effect on 2 Oct.
Possible causes
Some have cited economic development as the cause regarding the environmental issues. It is suggested that India's growing population is the primary cause of India's environmental degradation. Empirical evidence from countries such as Japan, England and Singapore, each with population density similar to or higher than that of India, yet each enjoying environmental quality vastly superior to India's, suggests population density may not be the only factor affecting India's issues.
Major issues
Major environmental issues are forests and agricultural degradation of land, resource depletion (such as water, mineral, forest, sand, and rocks), environmental degradation, public health, loss of biodiversity, loss of resilience in ecosystems, livelihood security for the poor.The major sources of pollution in India include the rapid burning of fuelwood and biomass such as dried waste from livestock as the primary source of energy, lack of organised garbage and waste removal services, lack of sewage treatment operations, lack of flood control and monsoon water drainage system, diversion of consumer waste into rivers, using large land area for burial purposes, cremation practices near major rivers, government mandated protection of highly polluting old public transport, and continued operation by Indian government of government-owned, high emission plants built between 1950 and 1980.Air pollution, poor management of waste, growing water scarcity, falling groundwater tables, water pollution, preservation and quality of forests, biodiversity loss, and land/soil degradation are some of the major environmental issues India faces today.India's population growth adds pressure to environmental issues and its resources. Rapid urbanization has caused a buildup of heavy metals in the soil of the city of Ghaziabad, and these metals are being ingested through contaminated vegetables. Heavy metals are hazardous to people's health and are known carcinogens.
Population growth and environmental quality
There is a long history of study and debate about the interactions between population growth and the environment. According to a British thinker Malthus, for example, a growing population exerts pressure on agricultural land, causing environmental degradation, and forcing the cultivation of land of higher as well as poorer quality. This environmental degradation ultimately reduces agricultural yields and food availability, famines and diseases and death, thereby reducing the rate of population growth.
Population growth, because it can place increased pressure on the assimilative capacity of the environment, is also seen as a major cause of air, water, and solid-waste pollution. The result, Malthus theorised, is an equilibrium population that enjoys low levels of both income and Environmental quality. Malthus suggested positive and preventative forced control of human population, along with abolition of poor laws.
Malthus theory, published between 1798 and 1826, has been analysed and criticised ever since. The American thinker Henry George, for example, observed with his characteristic piquancy in dismissing Malthus: "Both the jayhawk and the man eat chickens; but the more jayhawks, the fewer chickens, while the more men, the more chickens." Similarly, the American economist Julian Lincoln Simon criticised Malthus's theory. He noted that the facts of human history have proven the predictions of Malthus and of the Neo-Malthusians to be flawed. Massive geometric population growth in the 20th century did not result in a Malthusian catastrophe. The possible reasons include: increase in human knowledge, rapid increases in productivity, innovation and application of knowledge, general improvements in farming methods (industrial agriculture), mechanisation of work (tractors), the introduction of high-yield varieties of rice and wheat among other plants (Green Revolution), the use of pesticides to control crop pests.More recent scholarly articles concede that whilst there is no question that population growth may contribute to environmental degradation, its effects can be modified by economic growth and modern technology. Research in environmental economics has uncovered a relationship between environmental quality, measured by ambient concentrations of air pollutants and per capita income. This so-called environmental Kuznets curve shows environmental quality worsening up until about $5,000 of per capita income on purchasing parity basis, and improving thereafter. The key requirement, for this to be true, is continued adoption of technology and scientific management of resources, continued increases in productivity in every economic sector, entrepreneurial innovation and economic expansion.
Other data suggest that population density has little correlation to environmental quality and human quality of life. India's population density, in 2011, was about 368 human beings per square kilometre. Many countries with population density similar or higher than India enjoy environmental quality as well as human quality of life far superior than India. For example: Singapore (7148 /km2), Hong Kong (6349 /km2), South Korea (487 /km2), Netherlands (403 /km2), Belgium (355 / km2), England (395 /km2) and Japan (337/ km2).
Water pollution
India has major water pollution issues. Discharge of untreated sewage is an important cause for pollution of surface and ground water in India, since there is a large gap between the generation and treatment of domestic waste water. The problem is not only that India lacks sufficient treatment capacity but also that the sewage treatment plants that exist do not operate and are not maintained. The majority of government-owned sewage treatment plants remain closed most of the time due to improper design, poor maintenance, or lack of reliable electricity supply, along with severe understaffing. The waste water generated in these areas normally percolates in the soil or evaporates. The uncollected waste accumulates in urban areas, causing unhygienic conditions and releasing pollutants that reach to surface and groundwater.According to a World Health Organization study, out of India's 3,119 towns and cities, just 209 had partial sewage treatment facilities, and only 8 have full wastewater treatment facilities (1992). Over 100 Indian cities dump untreated sewage directly into the Ganges River. Investment is needed to bridge the gap between 29,000 million litre per day of sewage India generates, and a treatment capacity of mere 6000 million litre per day.Other sources of water pollution include agriculture runoff and small scale factories along the rivers and lakes of India. Fertilizers and pesticides used in agriculture in northwestern India have been found in rivers, lakes and ground water. Flooding during monsoons worsens India's water pollution problem, as it washes and moves all sorts of solid garbage and contaminated soils into its rivers and wetlands.
Water resources
According to NASA groundwater declines are highest on Earth between 2002 and 2008 in northern India. Agricultural productivity is dependent on irrigation. A collapse of agricultural output and severe shortages of potable water may influence 114 million residents in India. In July 2012, about 670 million people or 10% of the world’s population lost power blame on the severe drought restricting the power delivered by hydroelectric dams.
Air pollution
Air pollution in India is a serious issue, with the major sources being biomass burning, fuel adulteration, vehicle emission, and traffic congestion. Air pollution is also the main cause of the Asian brown cloud, which has been causing the monsoon season to be delayed. India is the world's largest consumer of fuelwood, agricultural waste, and biomass for energy purposes. Traditional fuel (fuelwood, crop residue and dung cake) dominates domestic energy use in rural India and account for about 90% of the total. In urban areas, traditional fuel constitutes about 24% of the total. Fuel wood, agricultural waste and biomass cake burning release over 165 million tonnes of combustion products every year. These biomass-based household stoves in India are also a leading source of greenhouse emissions, which contribute to climate change.The annual crop burning practice in northwest India, north India and eastern Pakistan, before and after monsoons, from April and May to October to November, are a major seasonal source of air pollution since the 1980s. Approximately 500 million tons of crop residue are burnt in the open, releasing NOx, SOx, PAHs and particulate matter into the air. This burning has been found to be a leading cause of smog and haze problems through the winter over Punjab, cities such as Delhi, and major population centers along the rivers through West Bengal. In other states of India, rice and wheat crop residue straw burning in open is a major source of air pollution.Vehicle emissions are another source of air pollution. Vehicle emissions are worsened by fuel adulteration and poor fuel combustion efficiencies from traffic congestion and low density of quality, high speed road network per 1000 people. In order to reduce air pollution effects India is introducing hybrid and electric vehicles as per the Faster Adoption and Manufacturing of Electric vehicles in India scheme. While challenges are slowing down the development cleaner combustion fuels are being use in motor vehicles. As of now Delhi Transport Corporation is the world's largest operator of CNG bus fleet. Many Indian cities are testing out with cleaner fossil fuels mostly CNG fuel and renewable biofuels such as biodiesel and E85 blended petroleum. In June 2020, the supreme court promised that in order to improve emissions from vehicles all BS4 vehicles will be upgraded to BS6 standards.
On per capita basis, India is a small emitter of carbon dioxide greenhouse. In 2009, IEA estimates that it emitted about 1.4 tons of gas per person, in comparison to the United States’ 17 tons per person, and a world average of 5.3 tons per person. However, India was the third largest emitter of total carbon dioxide in 2009 at 1.65 Gt per year, after China (6.9 Gt per year) and the United States (5.2 Gt per year). With 17 percent of world population, India contributed some 5 percent of human-sourced carbon dioxide emission; compared to China's 24 percent share.The Air (Prevention and Control of Pollution) Act was passed in 1981 to regulate air pollution and there have been some measurable improvements. However, the 2012 Environmental Performance Index ranked India at 177th position out of 180 countries in 2018,as having the poorest relative air quality out of 132countries. Of the world's 30 most polluted cities, India is home to 21 as of 2020.
Solid waste pollution
Trash and garbage are a common sight in urban and rural areas of India. It is a major source of pollution. Indian cities alone generate more than 100 million tons of solid waste a year. Street corners are piled with trash. Public places and sidewalks are despoiled with filth and litter, rivers and canals act as garbage dumps. In part, India's garbage crisis is from rising congestion. India's waste problem also points to a stunning failure of governance. The tourism regions in the country mainly hill stations are also facing this issue in the recent years.In 2000, India's Supreme Court directed all Indian cities to implement a comprehensive waste-management programme that would include household collection of segregated waste, recycling and composting. These directions have simply been ignored. No major city runs a comprehensive programme of the kind envisioned by the Supreme Court.
Indeed, forget waste segregation and recycling directive of the India's Supreme Court, the Organisation for Economic Cooperation and Development estimates that up to 40 percent of municipal waste in India remains simply uncollected. Even medical waste, theoretically controlled by stringent rules that require hospitals to operate incinerators, is routinely dumped with regular municipal garbage. A recent study found that about half of India's medical waste is improperly disposed of.
Municipalities in Indian cities and towns have waste collection employees. However, these are unionised government workers and their work performance is neither measured nor monitored.
Some of the few solid waste landfills India has, near its major cities, are overflowing and poorly managed. They have become significant sources of greenhouse emissions and breeding sites for disease vectors such as flies, mosquitoes, cockroaches, rats, and other pests.
In 2011, several Indian cities embarked on waste-to-energy projects of the type in use in Germany, Switzerland and Japan. For example, New Delhi is implementing two incinerator projects aimed at turning the city’s trash problem into electricity resource. These plants are being welcomed for addressing the city’s chronic problems of excess untreated waste and a shortage of electric power. They are also being welcomed by those who seek to prevent water pollution, hygiene problems, and eliminate rotting trash that produces potent greenhouse gas methane. The projects are being opposed by waste collection workers & local unions who fear changing technology may deprive them of their livelihood and way of life.
Noise pollution
Noise pollution or noise disturbance is the most efficiently changing and disturbing or excessive noise that may harm the activity or balance of human or animal life. The source of most outdoor noise worldwide is mainly caused by machines and transportation systems, motor vehicles, aircraft, and trains.[1][2] In India the outdoor noise is also caused by loud music during festival seasons.Outdoor noise is summarized by the word environmental noise. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential areas.
Indoor noise can be caused by machines, building activities, and music performances, especially in some workplaces. Noise-induced hearing loss can be caused by outside (e.g. trains) or inside (e.g. music) noise.
High noise levels can contribute to cardiovascular effects in humans and an increased incidence of coronary artery disease. In animals, noise can increase the risk of death by altering predator or prey detection and avoidance, interfere with reproduction and navigation, and contribute to permanent hearing loss.
The Supreme Court of India which is in New Delhi gave a significant verdict on noise pollution in 2005. Unnecessary honking of vehicles makes for a high decibel level of noise in cities. The use of loudspeakers for political purposes and for sermons by temples and mosques makes noise pollution in residential areas worse.
In January 2010, Government of India published norms of permissible noise levels in urban and rural areas.
Erosion of sands
In March 2009, the issue of Punjab attracted press coverage. It was alleged to be caused by fly ash ponds of thermal power stations, which reportedly lead to severe birth defects in children in the Faridkot and Bhatinda districts of Punjab. The news reports claimed the uranium levels were more than 60 times the maximum safe limit. In 2012, the Government of India confirmed that the ground water in Malwa belt of Punjab has uranium metal that is 50% above the trace limits set by the United Nations' World Health Organization. Scientific studies, based on over 1000 samples from various sampling points, could not trace the source to fly ash and any sources from thermal power plants or industry as originally alleged. The study also revealed that the uranium concentration in ground water of Malwa district is not 60 times the WHO limits, but only 50% above the WHO limit in 3 locations. This highest concentration found in samples was less than those found naturally in ground waters currently used for human purposes elsewhere, such as Finland. Research is underway to identify natural or other sources for the uranium.
Greenhouse gas emissions
India was the third largest emitter of carbon dioxide, a major greenhouse gas, in 2009 at 1.65 Gt per year, after China and the United States . With 17 percent of world population, India contributed some 5 percent of human-sourced carbon dioxide emission; compared to China's 24 percent share. On per capita basis, India emitted about 1.4 tons of carbon dioxide per person, in comparison to the United States’ 17 tons per person, and a world average of 5.3 tons per person.
Forests
India had a 2018 Forest Landscape Integrity Index mean score of 7.09/10, ranking it 58th globally out of 172 countries.
International rankings
See also
Bhalswa landfill
Deforestation in India
Drought in India
Environmental impact of irrigation
Water scarcity in India
Alkali soils
References
Further reading
Compendium of Environment Statistics India 2013, Annual Report and Data, Ministry of Statistics and Programme Implementation, Central Statistical Organisation, Government of India, New Delhi.
Compendium of Environment Statistics India 2011, Annual Report and Data, Ministry of Statistics and Programme Implementation, Central Statistical Organisation, Government of India, New Delhi.
India, Diagnostic Assessment of Select Environmental Challenges The World Bank, 2013
2010–2011 Annual Report of India's Ministry of Environment & Forests – Policies and Priorities, 2011
Unite for Children – UNICEF's Soap Stories and Toilet Tales Report, 2010
India: Total Sanitation Campaign; a UNICEF Case Study, 2010
National Environment Policy of India, 2006
Inheriting the World: The Atlas of Children’s Health and the Environment, 2004
The Asian Brown Cloud: Climate and Other Environmental Impacts, 2002
Mahesh Prasad Singh; J.K. Singh; Reena Mohanka (1 January 2007). Forest Environment and Biodiversity. Daya Publishing House. ISBN 978-81-7035-421-5.
Kumar, G. S.; Kar, S. S.; Jain, A. (2011). "Health and environmental sanitation in India: Issues for prioritizing control strategies". Indian Journal of Occupational and Environmental Medicine. 15 (3): 93–96. doi:10.4103/0019-5278.93196. PMC 3299104. PMID 22412284.
External links
India: Green Growth - Overcoming Environment Challenges to Promote Development The World Bank, 2014
Stubble Burning in Northern India - Air Pollution NASA Satellite Images, 2014
Ten Facts about Sanitation: A World Health Organisation Slideshow, 2010
Human Activities that affect the Environment | Energy Physics
Environmental Threats That We are Going to Face | Energy Physics Indian Journal Occupational Environ Med. 2011 |
supply chain sustainability | Supply-chain sustainability is the impact a company’s supply chain can make in promoting human rights, fair labor practices, environmental progress and anti-corruption policies. There is a growing need for integrating sustainable choices into supply-chain management. An increasing concern for sustainability is transforming how companies approach business. Whether motivated by their customers, corporate values or business opportunity, traditional priorities such as quality, efficiency and cost regularly compete for attention with concerns such as working conditions and environmental impact. A sustainable supply chain seizes value chain opportunities and offers significant competitive advantages for early adopters and process innovators.
Background
Supply chains are critical links that connect an organization’s inputs to its outputs. Traditional challenges have included lowering costs, ensuring just-in-time delivery, and shrinking transportation times to allow better reaction to business challenges. However, the increasing environmental, social and economic costs of these networks and growing consumer pressure for eco-friendly products has led many organizations to look at supply chain sustainability as a new measure of profitable logistics management. This shift is reflected by an understanding that sustainable supply chains mean profitable supply chains.Many companies are limited to measuring the sustainability of their own business operations and are unable to extend this evaluation to their suppliers and customers. This makes determining their true environmental and social costs highly challenging. However much progress has been made in defining supply chain sustainability and benchmarking tools are now available that enable sustainability action plans to be developed and implemented. A study conducted in 2017 researched the correlation between supply chain position (how close or far the firm is from the end user in the supply chain) and firm performance. The study findings concluded that suppliers located farther upstream in the supply chain (farther from the end user), had the most to gain financially from sustainable supply chain management.
Environmental impact
Climate change poses a new risk to supply chains and a need to increase their resilience. As companies are setting carbon footprint targets, suppliers’ operations are responsible for 65% to 95% of a company’s total emissions. These environmental impacts are evident across industries, for example, food and beverage companies are particularly vulnerable to the impacts of climate change as changing weather patterns can disrupt agricultural production. Measuring supply chain resilience on factors such as natural resource availability, infrastructure, financial resources, and social safety networks among others, can help them respond to challenges and create better supply chains in the process.
Social impact
Besides sustainability and resilience, an ethical supply chain is imperative to ensure corporate social responsibility and adhere to a supplier code of conduct. The work environment for the workers should be congenial and must not violate the basic human rights. For instance, companies like Nike and Apple, which outsource manufacturing of their products to other countries like China, have been under the scanner for workplace conditions and wages of their workers. Consumers increasingly demand transparency and traceability in supply chains, especially where disturbing social breakdowns occur, such as with forced labour and child labour for globally traded goods.Forced labor, understood as work that is performed involuntarily or under coercion, occurs in different industries, often upstream in the supply chain with limited visibility to buyers, customers, and end-users.For example, in the United States, the 2010 Dodd–Frank Wall Street Reform and Consumer Protection Act requires manufacturers to audit their supply chains and report use of conflict minerals to the Securities and Exchange Commission.
Governance impact
Governance practices in global supply chains can pose risks to supply chain sustainability, alongside social and environmental factors. Governance factors include guidelines and procedures for countries and corporations. Buyers screen their supply chains for appropriate governance practices such as a company’s purpose, the role and makeup of boards of directors, shareholder rights and how corporate performance is measured.
Stakeholders
The purchasing power held by buyers, gives them significant influence over their vendors or suppliers’ business practices. Companies in the role of buyers acquire goods or services through organizational functions such as purchasing, procurement, or sourcing, typically for use or consumption in their own organization. Suppliers or vendors typically sell their goods or services to the next link in the supply chain. Buyers might thus interface with only one tier of their suppliers, while their supply chain spans across complex tiers of suppliers upstream. Progress has been made in the sustainable procurement space as companies help suppliers design and implement sustainability programs that directly support the companies’ own goals. Buyers are working to achieve sustainability goals by setting standards for their suppliers’ performance and treating sustainability performance similar to other business considerations such as cost, quality, and timeliness.One of the key requirements of successful sustainable supply chains is collaboration. The practice of collaboration — such as sharing distribution to reduce waste by ensuring that half-empty vehicles do not get sent out and that deliveries to the same address are on the same truck — is not widespread because many companies fear a loss of commercial control by working with others. Investment in alternative modes of transportation — such as use of canals and airships — can play an important role in helping companies reduce the cost and environmental impact of their deliveries.
Drivers for supply chain sustainability
As of 2021, a growing number of companies see supply chain sustainability as a strategic business matter. A business strategy for supply chain environmental performance can deliver measurable environmental benefits for the company and its stakeholders. A sustainable sourcing strategy positions the company for increasing demands of higher disclosure and investor scrutiny, more environmentally focused consumers, and scarce resources. Sustainable procurement is a key concern for investors, through movements such as socially responsible investing. Leading investment firms such as BlackRock use their influence to bring supply chain sustainability on the agenda. Customers and consumers also demand supply chain responsibility and sustainability as part of a company’s value proposition under a growing ethical consumerism movement. Consumers’ purchasing behaviors reflect this trend as 70% say they are willing to pay a 5% price premium for products produced by more-sustainable means. During global supply chain disruptions following the COVID-19 pandemic, sustainable supply chains have been shown to be more resilient and have lower supplier risk.
Application of supply chain sustainability
Companies looking to implement sustainable strategies down its supply chain should also look upstream. To elaborate, if a company is able to choose between various suppliers, it can for example use its purchasing power to get its suppliers in compliance with its green supply chain standards. In managing suppliers, companies must measure that inputs from suppliers are of high quality, and the usage of water and energy is minimized leading to less pollution, defects and over production. They also must audit their supplier base and make sure that they are improving the supply chain metricsWhen measuring sustainability in supply chains, consistent measurements which can be replicated and compared are crucial to encourage consumer trust. Environmental and social change often takes time to measure and must be considered by private companies or governments over a long term period to accurately assess the results. Some companies utilize supplier scorecards to determine suppliers’ sustainability performance. This can be accomplished by conducting life-cycle assessments or surveys to help determine their sustainability practices. Another strategy is to award suppliers for their improvement on their sustainability performance, for instance, by developing new materials sourced from waste or by making operations more energy efficient.
Software
Digital technology has increased companies’ capability to collaborate with large numbers of suppliers. As supply-chain sustainability becomes a more critical business issue, the need for reliable and robust data from suppliers increases. Whilst some existing business systems can collect some sustainability data, most large businesses will look to dedicated software providers for more specific sustainability functionality.In order for businesses to determine the degree of sustainability impact of their business model, they must have the data to support it. Harvard Business School created the Impact-Weighted Accounts Initiative (IWAI) to assess the degree of impact that many large companies have on social, environmental, and economic areas. Impact data comes from long term research on specific, measurable topics that can be applied to future changes within a company or system. Impact data is often more sparse or inaccessible than it should be, which allows institutions such as HBS to hold companies accountable in their supply chains and encourage greater transparency. Transparency in the supply chain influences how consumers view and support companies, so improving data driven sustainability efforts can positively affect supply chain business. A company’s negative impact on environmental or social areas may show in their stock market value, exposing their true values to investors. While impact data is probably one of the better ways of assessing a company’s long term impacts, it is important to note that data collection for impact assessment is a lengthy process and not all companies can spend long periods of time measuring their impact without making changes. Because of this, simple, credible alternatives to long term impact assessments are necessary for some businesses.
On-site audits
In addition to digital tools, on-site audits can be an effective tool to verify social and environmental compliance at supplier sites. On-site audits can certify a supplier’s compliance with an external standard, such as SA8000, ISO 14001, SMETA 4-Pillar, and others. Audits can also assess compliance with internal policies and guidelines set by a business partner, for example through a supplier code of conduct. Depending on the auditing standard, buyers might choose to audit their suppliers directly, or send auditors from a third-party auditing firm to supplier sites.
Challenges in achieving supply chain sustainability goals
Despite companies being increasingly focused on working with suppliers that help them achieve their sustainability goals, challenges continue to persist. Suppliers further up the supply chain generally lack the maturity, tools, and capabilities to manage and drive environmental and social improvements. When faced with workplace issues such as sexual harassment, retaliation by superiors, and a hazardous environment, lower tiered suppliers typically have a poor response plan, or no plan at all. In cases where a plan is established, suppliers are unable to implement it and train their employees accordingly due to a workforce consisting of nearly 50% temporary workers. As you move further upstream in the supply chain, a company loses more oversight over suppliers. Companies do not directly operate with lower tiered suppliers, and there is generally no contractual relationship in place between the two. This makes it increasingly difficult for companies to manage sustainability upstream. Additionally, lower tiered suppliers operate in relative obscurity compared to the companies they supply, so they tend not to face the same level of scrutiny if failing to meet sustainability standards.
Many companies have thousands of suppliers, making it difficult for those in charge of driving supply chain sustainability to know where to begin and focus their efforts. They may not have access to the right data or may lack the authority to effect real change. Additionally, in striving to be more socially responsible, a company can inadvertently make it harder for smaller, diverse suppliers to compete with the larger, more established ones. Generally, the larger suppliers are better equipped to drive sustainability improvements compared with smaller ones. In rewarding the larger suppliers with larger contracts and reducing business or even severing ties with the smaller ones to achieve sustainability goals, companies make their supplier base less diverse and put the smaller suppliers at a disadvantage.
See also
Fair Stone standard
Sustainable procurement
== References == |
environmental monitoring | Environmental monitoring describes the processes and activities that need to take place to characterize and monitor the quality of the environment. Environmental monitoring is used in the preparation of environmental impact assessments, as well as in many circumstances in which human activities carry a risk of harmful effects on the natural environment.
All monitoring strategies and programs have reasons and justifications which are often designed to establish the current status of an environment or to establish trends in environmental parameters. In all cases, the results of monitoring will be reviewed, analyzed statistically, and published. The design of a monitoring program must therefore have regard to the final use of the data before monitoring starts.
Environmental monitoring includes monitoring of air quality, soils and water quality.
Air quality monitoring
Air pollutants are atmospheric substances—both naturally occurring and anthropogenic—which may potentially have a negative impact on the environment and organism health. With the evolution of new chemicals and industrial processes has come the introduction or elevation of pollutants in the atmosphere, as well as environmental research and regulations, increasing the demand for air quality monitoring.Air quality monitoring is challenging to enact as it requires the effective integration of multiple environmental data sources, which often originate from different environmental networks and institutions. These challenges require specialized observation equipment and tools to establish air pollutant concentrations, including sensor networks, geographic information system (GIS) models, and the Sensor Observation Service (SOS), a web service for querying real-time sensor data. Air dispersion models that combine topographic, emissions, and meteorological data to predict air pollutant concentrations are often helpful in interpreting air monitoring data. Additionally, consideration of anemometer data in the area between sources and the monitor often provides insights on the source of the air contaminants recorded by an air pollution monitor.
Air quality monitors are operated by citizens, regulatory agencies, non-governmental organisations and researchers to investigate air quality and the effects of air pollution. Interpretation of ambient air monitoring data often involves a consideration of the spatial and temporal representativeness of the data gathered, and the health effects associated with exposure to the monitored levels. If the interpretation reveals concentrations of multiple chemical compounds, a unique "chemical fingerprint" of a particular air pollution source may emerge from analysis of the data.
Air sampling
Passive or "diffusive" air sampling depends on meteorological conditions such as wind to diffuse air pollutants to a sorbent medium. Passive samplers, such as diffusion tubes, have the advantage of typically being small, quiet, and easy to deploy, and they are particularly useful in air quality studies that determine key areas for future continuous monitoring.Air pollution can also be assessed by biomonitoring with organisms that bioaccumulate air pollutants, such as lichens, mosses, fungi, and other biomass. One of the benefits of this type of sampling is how quantitative information can be obtained via measurements of accumulated compounds, representative of the environment from which they came. However, careful considerations must be made in choosing the particular organism, how it's dispersed, and relevance to the pollutant.Other sampling methods include the use of a denuder, needle trap devices, and microextraction techniques.
Soil monitoring
Soil monitoring involves the collection and/or analysis of soil and its associated quality, constituents, and physical status to determine or guarantee its fitness for use. Soil faces many threats, including compaction, contamination, organic material loss, biodiversity loss, slope stability issues, erosion, salinization, and acidification. Soil monitoring helps characterize these threats and other potential risks to the soil, surrounding environments, animal health, and human health.Assessing these threats and other risks to soil can be challenging due to a variety of factors, including soil's heterogeneity and complexity, scarcity of toxicity data, lack of understanding of a contaminant's fate, and variability in levels of soil screening. This requires a risk assessment approach and analysis techniques that prioritize environmental protection, risk reduction, and, if necessary, remediation methods. Soil monitoring plays a significant role in that risk assessment, not only aiding in the identification of at-risk and affected areas but also in the establishment of base background values of soil.Soil monitoring has historically focused on more classical conditions and contaminants, including toxic elements (e.g., mercury, lead, and arsenic) and persistent organic pollutants (POPs). Historically, testing for these and other aspects of soil, however, has had its own set of challenges, as sampling in most cases is of a destructive in nature, requiring multiple samples over time. Additionally, procedural and analytical errors may be introduced due to variability among references and methods, particularly over time. However, as analytical techniques evolve and new knowledge about ecological processes and contaminant effects disseminate, the focus of monitoring will likely broaden over time and the quality of monitoring will continue to improve.
Soil sampling
The two primary types of soil sampling are grab sampling and composite sampling. Grab sampling involves the collection of an individual sample at a specific time and place, while composite sampling involves the collection of a homogenized mixture of multiple individual samples at either a specific place over different times or multiple locations at a specific time. Soil sampling may occur both at shallow ground levels or deep in the ground, with collection methods varying by level collected from. Scoops, augers, core barrel, and solid-tube samplers, and other tools are used at shallow ground levels, whereas split-tube, solid-tube, or hydraulic methods may be used in deep ground.
Monitoring programs
Soil contamination monitoring
Soil contamination monitoring helps researchers identify patterns and trends in contaminant deposition, movement, and effect. Human-based pressures such as tourism, industrial activity, urban sprawl, construction work, and inadequate agriculture/forestry practices can contribute to and make worse soil contamination and lead to the soil becoming unfit for its intended use. Both inorganic and organic pollutants may make their way to the soil, having a wide variety of detrimental effects. Soil contamination monitoring is therefore important to identify risk areas, set baselines, and identify contaminated zones for remediation. Monitoring efforts may range from local farms to nationwide efforts, such as those made by China in the late 2000s, providing details such as the nature of contaminants, their quantity, effects, concentration patterns, and remediation feasibility. Monitoring and analytical equipment will ideally will have high response times, high levels of resolution and automation, and a certain degree of self-sufficiency. Chemical techniques may be used to measure toxic elements and POPs using chromatography and spectrometry, geophysical techniques may assess physical properties of large terrains, and biological techniques may use specific organisms to gauge not only contaminant level but also byproducts of contaminant biodegradation. These techniques and others are increasingly becoming more efficient, and laboratory instrumentation is becoming more precise, resulting in more meaningful monitoring outcomes.
Soil erosion monitoring
Soil erosion monitoring helps researchers identify patterns and trends in soil and sediment movement. Monitoring programs have varied over the years, from long-term academic research on university plots to reconnaissance-based surveys of biogeoclimatic areas. In most methods, however, the general focus is on identifying and measuring all the dominant erosion processes in a given area. Additionally, soil erosion monitoring may attempt to quantify the effects of erosion on crop productivity, though challenging "because of the many complexities in the relationship between soils and plants and their management under a variable climate."
Soil salinity monitoring
Soil salinity monitoring helps researchers identify patterns and trends in soil salt content. Both the natural process of seawater intrusion and the human-induced processes of inappropriate soil and water management can lead to salinity problems in soil, with up to one billion hectares of land affected globally (as of 2013). Salinity monitoring at the local level may look closely at the root zone to gauge salinity impact and develop management options, whereas at the regional and national level salinity monitoring may help with identifying areas at-risk and aiding policymakers in tackling the issue before it spreads. The monitoring process itself may be performed using technologies such as remote sensing and geographic information systems (GIS) to identify salinity via greenness, brightness, and whiteness at the surface level. Direct analysis of soil up close, including the use of electromagnetic induction techniques, may also be used to monitor soil salinity.
Water quality monitoring
Design of environmental monitoring programmes
Water quality monitoring is of little use without a clear and unambiguous definition of the reasons for the monitoring and the objectives that it will satisfy. Almost all monitoring (except perhaps remote sensing) is in some part invasive of the environment under study and extensive and poorly planned monitoring carries a risk of damage to the environment. This may be a critical consideration in wilderness areas or when monitoring very rare organisms or those that are averse to human presence. Some monitoring techniques, such as gill netting fish to estimate populations, can be very damaging, at least to the local population and can also degrade public trust in scientists carrying out the monitoring.
Almost all mainstream environmentalism monitoring projects form part of an overall monitoring strategy or research field, and these field and strategies are themselves derived from the high levels objectives or aspirations of an organisation. Unless individual monitoring projects fit into a wider strategic framework, the results are unlikely to be published and the environmental understanding produced by the monitoring will be lost.
Parameters
see also Freshwater environmental quality parameters
Chemical
The range of chemical parameters that have the potential to affect any ecosystem is very large and in all monitoring programmes it is necessary to target a suite of parameters based on local knowledge and past practice for an initial review. The list can be expanded or reduced based on developing knowledge and the outcome of the initial surveys.
Freshwater environments have been extensively studied for many years and there is a robust understanding of the interactions between chemistry and the environment across much of the world. However, as new materials are developed and new pressures come to bear, revisions to monitoring programmes will be required. In the last 20 years acid rain, synthetic hormone analogues, halogenated hydrocarbons, greenhouse gases and many others have required changes to monitoring strategies.
Biological
In ecological monitoring, the monitoring strategy and effort is directed at the plants and animals in the environment under review and is specific to each individual study.
However, in more generalised environmental monitoring, many animals act as robust indicators of the quality of the environment that they are experiencing or have experienced in the recent past. One of the most familiar examples is the monitoring of numbers of Salmonid fish such as brown trout or Atlantic salmon in river systems and lakes to detect slow trends in adverse environmental effects. The steep decline in salmonid fish populations was one of the early indications of the problem that later became known as acid rain.
In recent years much more attention has been given to a more holistic approach in which the ecosystem health is assessed and used as the monitoring tool itself. It is this approach that underpins the monitoring protocols of the Water Framework Directive in the European Union.
Radiological
Radiation monitoring involves the measurement of radiation dose or radionuclide contamination for reasons related to the assessment or control of exposure to ionizing radiation or radioactive substances, and the interpretation of the results. The 'measurement' of dose often means the measurement of a dose equivalent quantity as a proxy (i.e. substitute) for a dose quantity that cannot be measured directly. Also, sampling may be involved as a preliminary step to measurement of the content of radionuclides in environmental media. The methodological and technical details of the design and operation of monitoring programmes and systems for different radionuclides, environmental media and types of facility are given in IAEA Safety Guide RS–G-1.8 and in IAEA Safety Report No. 64.Radiation monitoring is often carried out using networks of fixed and deployable sensors such as the US Environmental Protection Agency's Radnet and the SPEEDI network in Japan. Airborne surveys are also made by organizations like the Nuclear Emergency Support Team.
Microbiological
Bacteria and viruses are the most commonly monitored groups of microbiological organisms and even these are only of great relevance where water in the aquatic environment is subsequently used as drinking water or where water contact recreation such as swimming or canoeing is practised.
Although pathogens are the primary focus of attention, the principal monitoring effort is almost always directed at much more common indicator species such as Escherichia coli, supplemented by overall coliform bacteria counts. The rationale behind this monitoring strategy is that most human pathogens originate from other humans via the sewage stream. Many sewage treatment plants have no sterilisation final stage and therefore discharge an effluent which, although having a clean appearance, still contains many millions of bacteria per litre, the majority of which are relatively harmless coliform bacteria. Counting the number of harmless (or less harmful) sewage bacteria allows a judgement to be made about the probability of significant numbers of pathogenic bacteria or viruses being present. Where E. coli or coliform levels exceed pre-set trigger values, more intensive monitoring including specific monitoring for pathogenic species is then initiated.
Populations
Monitoring strategies can produce misleading answers when relaying on counts of species or presence or absence of particular organisms if there is no regard to population size. Understanding the populations dynamics of an organism being monitored is critical.
As an example if presence or absence of a particular organism within a 10 km square is the measure adopted by a monitoring strategy, then a reduction of population from 10,000 per square to 10 per square will go unnoticed despite the very significant impact experienced by the organism.
Monitoring programmes
All scientifically reliable environmental monitoring is performed in line with a published programme. The programme may include the overall objectives of the organisation, references to the specific strategies that helps deliver the objective and details of specific projects or tasks within those strategies the key feature of any programme is the listing of what is being monitored and how that monitoring is to take place and the time-scale over which it should all happen. Typically, and often as an appendix, a monitoring programme will provide a table of locations, dates and sampling methods that are proposed and which, if undertaken in full, will deliver the published monitoring programme.
There are a number of commercial software packages which can assist with the implementation of the programme, monitor its progress and flag up inconsistencies or omissions but none of these can provide the key building block which is the programme itself.
Environmental monitoring data management systems
Given the multiple types and increasing volumes and importance of monitoring data, commercial software Environmental Data Management Systems (EDMS) or E-MDMS are increasingly in common use by regulated industries. They provide a means of managing all monitoring data in a single central place. Quality validation, compliance checking, verifying all data has been received, and sending alerts are generally automated. Typical interrogation functionality enables comparison of data sets both temporarily and spatially. They will also generate regulatory and other reports.
One formal certification scheme exists specifically for environmental data management software. This is provided by the Environment Agency in the U.K. under its Monitoring Certification Scheme (MCERTS).
Sampling methods
There are a wide range of sampling methods which depend on the type of environment, the material being sampled and the subsequent analysis of the sample. At its simplest a sample can be filling a clean bottle with river water and submitting it for conventional chemical analysis. At the more complex end, sample data may be produced by complex electronic sensing devices taking sub-samples over fixed or variable time periods.
Sampling methods include judgmental sampling, simple random sampling, stratified sampling, systematic and grid sampling, adaptive cluster sampling, grab samples, semi-continuous monitoring and continuous, passive sampling, remote surveillance, remote sensing, biomonitoring and other sampling methods.
Judgmental sampling
In judgmental sampling, the selection of sampling units (i.e., the number and location and/or timing of collecting samples) is based on knowledge of the feature or condition under investigation and on professional judgment. Judgmental sampling is distinguished from probability-based sampling in that inferences are based on professional judgment, not statistical scientific theory. Therefore, conclusions about the target population are limited and depend entirely on the validity and accuracy of professional judgment; probabilistic statements about parameters are not possible. As described in subsequent chapters, expert judgment may also be used in conjunction with other sampling designs to produce effective sampling for defensible decisions.
Simple random sampling
In simple random sampling, particular sampling units (for example, locations and/or times) are selected using random numbers, and all possible selections of a given number of units are equally likely. For example, a simple random sample of a set of drums can be taken by numbering all the drums and randomly selecting numbers from that list or by sampling an area by using pairs of random coordinates. This method is easy to understand, and the equations for determining sample size are relatively straightforward. Simple random sampling is most useful when the population of interest is relatively homogeneous; i.e., no major patterns of contamination or “hot spots” are expected. The main advantages of this design are:
It provides statistically unbiased estimates of the mean, proportions, and variability.
It is easy to understand and easy to implement.
Sample size calculations and data analysis are very straightforward.In some cases, implementation of a simple random sample can be more difficult than some other types of designs (for example, grid samples) because of the difficulty of precisely identifying random geographic locations. Additionally, simple random sampling can be more costly than other plans if difficulties in obtaining samples due to location causes an expenditure of extra effort.
Stratified sampling
In stratified sampling, the target population is separated into non-overlapping strata, or subpopulations that are known or thought to be more homogeneous (relative to the environmental medium or the contaminant), so that there tends to be less variation among sampling units in the same stratum than among sampling units in different strata. Strata may be chosen on the basis of spatial or temporal proximity of the units, or on the basis of preexisting information or professional judgment about the site or process. Advantages of this sampling design are that it has potential for achieving greater precision in estimates of the mean and variance, and that it allows computation of reliable estimates for population subgroups of special interest. Greater precision can be obtained if the measurement of interest is strongly correlated with the variable used to make the strata.
Systematic and grid sampling
In systematic and grid sampling, samples are taken at regularly spaced intervals over space or time. An initial location or time is chosen at random, and then the remaining sampling locations are defined so that all locations are at regular intervals over an area (grid) or time (systematic). Examples Systematic Grid Sampling - Square Grid Systematic Grid Sampling - Triangular Grids of systematic grids include square, rectangular, triangular, or radial grids.
Cressie, 1993. In random systematic sampling, an initial sampling location (or time) is chosen at random and the remaining sampling sites are specified so that they are located according to a regular pattern. Random systematic sampling is used to search for hot spots and to infer means, percentiles, or other parameters and is also useful for estimating spatial patterns or trends over time. This design provides a practical and easy method for designating sample locations and ensures uniform coverage of a site, unit, or process.Ranked set sampling is an innovative design that can be highly useful and cost efficient in obtaining better estimates of mean concentration levels in soil and other environmental media by explicitly incorporating the professional judgment of a field investigator or a field screening measurement method to pick specific sampling locations in the field. Ranked set sampling uses a two-phase sampling design that identifies sets of field locations, utilizes inexpensive measurements to rank locations within each set, and then selects one location from each set for sampling. In ranked set sampling, m sets (each of size r) of field locations are identified using simple random sampling. The locations are ranked independently within each set using professional judgment or inexpensive, fast, or surrogate measurements. One sampling unit from each set is then selected (based on the observed ranks) for subsequent measurement using a more accurate and reliable (hence, more expensive) method for the contaminant of interest. Relative to simple random sampling, this design results in more representative samples and so leads to more precise estimates of the population parameters. Ranked set sampling is useful when the cost of locating and ranking locations in the field is low compared to laboratory measurements. It is also appropriate when an inexpensive auxiliary variable (based on expert knowledge or measurement) is available to rank population units with respect to the variable of interest. To use this design effectively, it is important that the ranking method and analytical method are strongly correlated.
Adaptive cluster sampling
In adaptive cluster sampling, samples are taken using simple random sampling, and additional samples are taken at locations where measurements exceed some threshold value. Several additional rounds of sampling and analysis may be needed. Adaptive cluster sampling tracks the selection probabilities for later phases of sampling so that an unbiased estimate of the population mean can be calculated despite oversampling of certain areas. An example application of adaptive cluster sampling is delineating the borders of a plume of contamination. Adaptive sampling is useful for estimating or searching for rare characteristics in a population and is appropriate for inexpensive, rapid measurements. It enables delineating the boundaries of hot spots, while also using all data collected with appropriate weighting to give unbiased estimates of the population mean.
Grab samples
Grab samples are samples taken of a homogeneous material, usually water, in a single vessel. Filling a clean bottle with river water is a very common example. Grab samples provide a good snap-shot view of the quality of the sampled environment at the point of sampling and at the time of sampling. Without additional monitoring, the results cannot be extrapolated to other times or to other parts of the river, lake or ground-water.: 3 In order to enable grab samples or rivers to be treated as representative, repeat transverse and longitudinal transect surveys taken at different times of day and times of year are required to establish that the grab-sample location is as representative as is reasonably possible. For large rivers such surveys should also have regard to the depth of the sample and how to best manage the sampling locations at times of flood and drought.: 8–9 In lakes grab samples are relatively simple to take using depth samplers which can be lowered to a pre-determined depth and then closed trapping a fixed volume of water from the required depth. In all but the shallowest lakes, there are major changes in the chemical composition of lake water at different depths, especially during the summer months when many lakes stratify into a warm, well oxygenated upper layer (epilimnion) and a cool de-oxygenated lower layer (hypolimnion).
In the open seas marine environment grab samples can establish a wide range of base-line parameters such as salinity and a range of cation and anion concentrations. However, where changing conditions are an issue such as near river or sewage discharges, close to the effects of volcanism or close to areas of freshwater input from melting ice, a grab sample can only give a very partial answer when taken on its own.
Semi-continuous monitoring and continuous
There is a wide range of specialized sampling equipment available that can be programmed to take samples at fixed or variable time intervals or in response to an external trigger. For example, an autosampler can be programmed to start taking samples of a river at 8-minute intervals when the rainfall intensity rises above 1 mm / hour. The trigger in this case may be a remote rain gauge communicating with the sampler by using cell phone or meteor burst technology. Samplers can also take individual discrete samples at each sampling occasion or bulk up samples into composite so that in the course of one day, such a sampler might produce 12 composite samples each composed of 6 sub-samples taken at 20-minute intervals.
Continuous or quasi-continuous monitoring involves having an automated analytical facility close to the environment being monitored so that results can, if required, be viewed in real time. Such systems are often established to protect important water supplies such as in the River Dee regulation system but may also be part of an overall monitoring strategy on large strategic rivers where early warning of potential problems is essential. Such systems routinely provide data on parameters such as pH, dissolved oxygen, conductivity, turbidity and ammonia using sondes. It is also possible to operate gas liquid chromatography with mass spectrometry technologies (GLC/MS) to examine a wide range of potential organic pollutants. In all examples of automated bank-side analysis there is a requirement for water to be pumped from the river into the monitoring station. Choosing a location for the pump inlet is equally as critical as deciding on the location for a river grab sample. The design of the pump and pipework also requires careful design to avoid artefacts being introduced through the action of pumping the water. Dissolved oxygen concentration is difficult to sustain through a pumped system and GLC/MS facilities can detect micro-organic contaminants from the pipework and glands.
Passive sampling
The use of passive samplers greatly reduces the cost and the need of infrastructure on the sampling location. Passive samplers are semi-disposable and can be produced at a relatively low cost, thus they can be employed in great numbers, allowing for a better cover and more data being collected. Due to being small the passive sampler can also be hidden, and thereby lower the risk of vandalism. Examples of passive sampling devices are the diffusive gradients in thin films (DGT) sampler, Chemcatcher, polar organic chemical integrative sampler (POCIS), semipermeable membrane devices (SPMDs), stabilized liquid membrane devices (SLMDs), and an air sampling pump.
Remote surveillance
Although on-site data collection using electronic measuring equipment is common-place, many monitoring programmes also use remote surveillance and remote access to data in real time. This requires the on-site monitoring equipment to be connected to a base station via either a telemetry network, land-line, cell phone network or other telemetry system such as Meteor burst. The advantage of remote surveillance is that many data feeds can come into a single base station for storing and analysis. It also enable trigger levels or alert levels to be set for individual monitoring sites and/or parameters so that immediate action can be initiated if a trigger level is exceeded. The use of remote surveillance also allows for the installation of very discrete monitoring equipment which can often be buried, camouflaged or tethered at depth in a lake or river with only a short whip aerial protruding. Use of such equipment tends to reduce vandalism and theft when monitoring in locations easily accessible by the public.
Remote sensing
Environmental remote sensing uses UAV, aircraft or satellites to monitor the environment using multi-channel sensors.
There are two kinds of remote sensing. Passive sensors detect natural radiation that is emitted or reflected by the object or surrounding area being observed. Reflected sunlight is the most common source of radiation measured by passive sensors and in environmental remote sensing, the sensors used are tuned to specific wavelengths from far infrared through visible light frequencies to the far ultraviolet. The volumes of data that can be collected are very large and require dedicated computational support. The output of data analysis from remote sensing are false colour images which differentiate small differences in the radiation characteristics of the environment being monitored. With a skilful operator choosing specific channels it is possible to amplify differences which are imperceptible to the human eye. In particular it is possible to discriminate subtle changes in chlorophyll a and chlorophyll b concentrations in plants and show areas of an environment with slightly different nutrient regimes.
Active remote sensing emits energy and uses a passive sensor to detect and measure the radiation that is reflected or backscattered from the target. LIDAR is often used to acquire information about the topography of an area, especially when the area is large and manual surveying would be prohibitively expensive or difficult.
Remote sensing makes it possible to collect data on dangerous or inaccessible areas. Remote sensing applications include monitoring deforestation in areas such as the Amazon Basin, the effects of climate change on glaciers and Arctic and Antarctic regions, and depth sounding of coastal and ocean depths.
Orbital platforms collect and transmit data from different parts of the electromagnetic spectrum, which in conjunction with larger scale aerial or ground-based sensing and analysis, provides information to monitor trends such as El Niño and other natural long and short term phenomena. Other uses include different areas of the earth sciences such as natural resource management, land use planning and conservation.
Biomonitoring
The use of living organisms as monitoring tools has many advantages. Organisms living in the environment under study are constantly exposed to the physical, biological and chemical influences of that environment. Organisms that have a tendency to accumulate chemical species can often accumulate significant quantities of material from very low concentrations in the environment. Mosses have been used by many investigators to monitor heavy metal concentrations because of their tendency to selectively adsorb heavy metals.Similarly, eels have been used to study halogenated organic chemicals, as these are adsorbed into the fatty deposits within the eel.
Other sampling methods
Ecological sampling requires careful planning to be representative and as noninvasive as possible. For grasslands and other low growing habitats the use of a quadrat – a 1-metre square frame – is often used with the numbers and types of organisms growing within each quadrat area countedSediments and soils require specialist sampling tools to ensure that the material recovered is representative. Such samplers are frequently designed to recover a specified volume of material and may also be designed to recover the sediment or soil living biota as well such as the Ekman grab sampler.
Data interpretations
The interpretation of environmental data produced from a well designed monitoring programme is a large and complex topic addressed by many publications. Regrettably it is sometimes the case that scientists approach the analysis of results with a pre-conceived outcome in mind and use or misuse statistics to demonstrate that their own particular point of view is correct.
Statistics remains a tool that is equally easy to use or to misuse to demonstrate the lessons learnt from environmental monitoring.
Environmental quality indices
Since the start of science-based environmental monitoring, a number of quality indices have been devised to help classify and clarify the meaning of the considerable volumes of data involved. Stating that a river stretch is in "Class B" is likely to be much more informative than stating that this river stretch has a mean BOD of 4.2, a mean dissolved oxygen of 85%, etc. In the UK the Environment Agency formally employed a system called General Quality Assessment (GQA) which classified rivers into six quality letter bands from A to F based on chemical criteria and on biological criteria. The Environment Agency and its devolved partners in Wales (Countryside Council for Wales, CCW) and Scotland (Scottish Environmental Protection Agency, SEPA) now employ a system of biological, chemical and physical classification for rivers and lakes that corresponds with the EU Water Framework Directive.
See also
Agricultural burning
Agricultural waste
Biodiversity Monitoring Switzerland
Carbon monitoring
Carbon profiling
Citizen science, research projects that non-scientists can take part in
Crowdmapping
Environmental technology
Project Grab Bag
Unmanned aerial vehicle § Applications: drones can be used for various types of environmental monitoring
== References == |
environmental impact of the big cypress swamp jetport | The "Environmental Impact of the Big Cypress Swamp Jetport", unofficially known as the "Leopold Report" or the "Leopold-Marshall Report", was a report authored by hydrologist Luna Leopold of the United States Geological Service for the Department of the Interior and officially released on September 17, 1969. Arthur R. Marshall, formerly of the United States Fish and Wildlife Service, helped draft the report. It is considered the first ecological impact report in the state of Florida.
Background
On June 2, 1969, Walter Hickel, Secretary of the Interior in the Nixon administration, created a select committee to conduct an inquiry into a proposed jetport for supersonic transport in what is now known as the Big Cypress National Preserve on the border of the Everglades National Park in Florida. The proposed Everglades Jetport would have had six runways for supersonic aircraft, making it the largest airport in the world at the time. Russell E. Train, then undersecretary of the Department of the Interior, appointed Luna Leopold of the USGS to direct the environmental impact assessment. Before the report was published, Wisconsin Senator Gaylord Nelson leaked key conclusions from the report in defense of the Everglades: "Either we stop the jetport at the present site, or we publicly admit that we are going to destroy the park."
Findings
When the report was finally released, Leopold began by stating his strong opposition to the plan: "Development of the proposed jetport and its attendant facilities will lead to land drainage and development for agriculture, transportation, and services in the Big Cypress Swamp which will inexorably destroy the south Florida ecosystem and thus the Everglades National Park." A report from the National Academy of Sciences was subsequently published the next day supporting the findings of the Leopold report.
Outcome
Because the jetport did not meet the necessary standards, Walter Hickel opposed it. Hickel successfully defeated the construction of the jetport by preventing it from being listed by the Department of Transportation for funding under an airport development program. Although construction of only one runway was completed, the remains of the Everglades Jetport was later opened as the Dade-Collier Training and Transition Airport and is sometimes used as an aviation training facility.
Notes
References
Davis, Jack E. (Jan 2003). "'Conservation Is Now a Dead Word': Marjory Stoneman Douglas and the Transformation of American Environmentalism". Environmental History. Forest History Society and American Society for Environmental History. 8 (1): 53–76. doi:10.2307/3985972. JSTOR 3985972. S2CID 145203614.
Davis, Jack E. (2009). An Everglades Providence: Marjory Stoneman Douglas and the American Environmental Century. University of Georgia Press. ISBN 978-0-8203-3071-6.
Gunderson, Lance H.; C. S. Holling; Stephen S. Light (1995). Barriers and Bridges to the Renewal of Ecosystems and Institutions. Columbia University Press. ISBN 0-231-10102-3.
Leopold, Luna B.; A.R. Marshall (Sep 1969). "Environmental Impact of the Big Cypress Swamp Jetport" (PDF). United States Department of the Interior.
McPherson, B. F.; C. Y. Hendrix; Howard Klein; H. M. Tyus (1976). "The Environment of South Florida, A Summary Report" (PDF). Geological Survey Professional Paper. Professional Paper. United States Department of the Interior, United States Government Printing Office (1011). doi:10.3133/pp1011. Retrieved 2009-07-18.
Vileisis, Ann (1999). Discovering the Unknown Landscape: A History of America's Wetlands. Island Press. ISBN 1-55963-315-8.
Warshaw, Shirley Anne (1996). Powersharing: White House-Cabinet Relations in the Modern Presidency. SUNY Press. ISBN 0-7914-2869-9.
Further reading
Gilmour, Robert S.; John A. McCauley (Winter 1975–1976). "Environmental Preservation and Politics: The Significance of "Everglades Jetport"". Political Science Quarterly. Academy of Political Science. 90 (4): 719–738. doi:10.2307/2148753. JSTOR 2148753. |
mechanised agriculture | Mechanised agriculture or agricultural mechanization is the use of machinery and equipment, ranging from simple and basic hand tools to more sophisticated, motorized equipment and machinery, to perform agricultural operations. In modern times, powered machinery has replaced many farm task formerly carried out by manual labour or by working animals such as oxen, horses and mules.
The entire history of agriculture contains many examples of the use of tools, such as the hoe and the plough. The ongoing integration of machines since the Industrial Revolution has allowed farming to become much less labour-intensive.
Agricultural mechanization is part of this technological evolution of agricultural automation. It can be summarized as a progressive move from manual tools to animal traction, to motorized mechanization, to digital equipment and finally, to robotics with artificial intelligence (AI). These advances can raise productivity and allow for more careful crop, livestock, aquaculture and forestry management; provide better working conditions; improve incomes; reduce the workload of farming; and generate new rural entrepreneurial opportunities.Current mechanised agriculture includes the use of tractors, trucks, combine harvesters, countless types of farm implements, aeroplanes and helicopters (for aerial application), and other vehicles. Precision agriculture even uses computers in conjunction with satellite imagery and satellite navigation (GPS guidance) to increase yields. New digital equipment is increasingly complementing, or even superseding, motorized machines to make diagnosis and decision-making automatic.Mechanisation was one of the large factors responsible for urbanisation and industrial economies. Besides improving production efficiency, mechanisation encourages large scale production and sometimes can improve the quality of farm produce. On the other hand, it can cause environmental degradation (such as pollution, deforestation, and soil erosion), especially if it is applied shortsightedly rather than holistically.
History
Jethro Tull's seed drill (c. 1701) was a mechanical seed spacing and depth placing device that increased crop yields and saved seed. It was an important factor in the British Agricultural Revolution.Since the beginning of agriculture threshing was done by hand with a flail, requiring a great deal of labour. The threshing machine, which was invented in 1794 but not widely used for several more decades, simplified the operation and allowed the use of animal power. Before the invention of the grain cradle (ca. 1790) an able bodied labourer could reap about one quarter acre of wheat in a day using a sickle. It was estimated that each of Cyrus McCormick's horse-pulled reapers (ca. 1830s) freed up five men for military service in the US Civil War. Later innovations included raking and binding machines. By 1890 two men and two horses could cut, rake and bind 20 acres of wheat per day.In the 1880s the reaper and threshing machine were combined into the combine harvester. These machines required large teams of horses or mules to pull. Steam power was applied to threshing machines in the late 19th century. There were steam engines that moved around on wheels under their own power for supplying temporary power to stationary threshing machines. These were called road engines, and Henry Ford seeing one as a boy was inspired to build an automobile.With internal combustion came the first modern tractors in the early 1900s, becoming more popular after the Fordson tractor (ca. 1917). At first reapers and combine harvesters were pulled by teams of horses or tractors, but in the 1930s self powered combines were developed.Advertising for motorised equipment in farm journals during this era did its best to compete against horse-drawn methods with economic arguments, extolling common themes such as that a tractor "eats only when it works", that one tractor could replace many horses, and that mechanisation could allow one man to get more work done per day than he ever had before. The horse population in the US began to decline in the 1920s after the conversion of agriculture and transportation to internal combustion. Peak tractor sales in the US were around 1950. In addition to saving labour, this freed up much land previously used for supporting draft animals. The greatest period of growth in agricultural productivity in the US was from the 1940s to the 1970s, during which time agriculture was benefiting from internal combustion powered tractors and combine harvesters, chemical fertilisers and the green revolution.Although U.S. farmers of corn, wheat, soy, and other commodity crops had replaced most of their workers with harvesting machines and combines by the 1950s enabling them to efficiently cut and gather grains, growers of produce continued to rely on human pickers to avoid the bruising of the product in order to maintain the blemish-free appearance demanded by customers. The continuous supply of undocumented workers from Latin America that harvest the crops for low wages further suppressed the need for mechanisation. As the number of undocumented workers has continued to decline since reaching its peak in 2007 due to increased border patrols and an improving Mexican economy, the industry is increasing the use of mechanisation. Proponents argue that mechanisation will boost productivity and help to maintain low food prices while farm worker advocates assert that it will eliminate jobs and will give an advantage to large growers who are able to afford the required equipment.
Motorized mechanization adoption trends
Motorized mechanization has substantially expanded at global level, although it has been unevenly and inadequately adopted particularly in sub-Saharan Africa. Mechanization is limited to a range of operations including harvesting and weeding and is rarely used for fruit and vegetable production across the globe.Extensive adoption started in the United States of America, where tractors replaced about 24 million draught animals between 1910 and 1960 and become the main source of farm power. United Kingdom first started using tractors in the 1930s, but agricultural transformation in Japan and some European countries (Denmark, France, Germany, Spain and former Yugoslavia) did not take place until about 1955. Thereafter, the adoption of motorized mechanization took place very quickly, completely superseding animal traction. Using tractors as farm power enabled, and even triggered, innovations in other agricultural machinery and equipment that greatly eased the toil associated with agriculture and allowed farmers to carry out tasks more quckly. At a later stage, motorized machinery also increased in many Asian and Latin American countries.Sub-Saharan Africa is the only region where adoption of motorized mechanization has not progressed over the past decades. A study in 11 countries proves this low level of mechanization in the region, finding that only 18 percent of the sampled households have access to tractor-powered appliances. The remaining ones make use of either simple hand-held tools (48 percent) or animal-powered equipment (33 percent).
Employment impact
Since at least the early nineteenth century there have been concerns over the possible negative socioeconomic impacts of labour-saving technological change, particularly job displacement resulting in unemployment. However, fears that automation increases labour productivity to the extent that it causes massive unemployment are not supported by historical realities. Instead, innovation and incorporation of labour-saving technologies tends to take long, and automation of one task often spurs increases in the need for workers to perform other jobs. The direct impact of automation on employment will be determined by the factors leading to its adoption.If rising wages and labour scarcities drive the adoption of automation then it is not likely to create unemployment. Automation can also stimulate agricultural employment. For example, it can enable farms to increase their production following growing food demand. Agricultural automation is part of the structural transformation of societies through which increased agricultural labour productivity gradually releases agricultural workers, giving them the opportunity to take new jobs in other sectors, including industry and services. On the other hand, automation that is forcibly promoted, such as through government subsidies, could cause rising unemployment and falling or stagnant wages.The Food and Agriculture Organization of the United Nations (FAO) advises against governments implementing distortive subsidies for automation because doing so risks increasing unemployment. FAO also advises against restricting automation on the assumption that this will save jobs and incomes, because it risks making agriculture less competitive and productive. Instead, the recommendation is to concentrate on creating an enabling environment to adopt automation – particularly by small-scale agricultural producers, women and youth – while making social protection available to least skilled workers, who are more likely to lose their jobs during the transition.
Applications
Preparing land for planting
Seed drilling, planting
It is done by the seed drill. The plantation of seeds depends upon the season.
Weeding, crop spraying
Harvesting
Asparagus are presently harvested by hand with labour costs at 71% of production costs and 44% of selling costs. Asparagus is a difficult crop to harvest since each spear matures at a different speed making it difficult to achieve a uniform harvest. A prototype asparagus harvesting machine – using a light-beam sensor to identify the taller spears – is expected to be available for commercial use.Mechanization of Maine's blueberry industry has reduced the number of migrant workers required from 5,000 in 2005 to 1,500 in 2015 even though production has increased from 50–60 million pounds per year in 2005 to 90 million pounds in 2015.As of 2014, prototype chili pepper harvesters are being tested by New Mexico State University. The New Mexico green chile crop is currently hand-picked entirely by field workers as chili pods tend to bruise easily. The first commercial application commenced in 2015. The equipment is expected to increase yield per acre and help to offset a sharp decline in acreage planted due to the lack of available labour and drought conditions.As of 2010, approximately 10% of the processing orange acreage in Florida is harvested mechanically, mainly with citrus canopy shaker machines. Mechanization has progressed slowly due to the uncertainty of future economic benefits due to competition from Brazil and the transitory damage to orange trees when they are harvested.There has been an ongoing transition to mechanical harvesting of cling peaches (mostly used in canning) where the cost of labor is 70 percent of a grower's direct costs. In 2016, 12 percent of the cling peach tonnage from Yuba County and Sutter County in California will be mechanically harvested. Fresh peaches destined for direct customer sales must still be hand-picked.
As of 2007, mechanised harvesting of raisins is at 45%; however the rate has slowed due to high raisin demand and prices making the conversion away from hand labour less urgent. A new strain of grape developed by the USDA that drys on the vine and is easily harvested mechanically is expected to reduce the demand for labour.Strawberries are a high cost-high value crop with the economics supporting mechanisation. In 2005, picking and hauling costs were estimated at $594 per ton or 51% of the total grower cost. However, the delicate nature of fruit make it an unlikely candidate for mechanisation in the near future. A strawberry harvester developed by Shibuya Seiki and unveiled in Japan in 2013 is able to pick a strawberry every eight seconds. The robot identifies which strawberries are ready to pick by using three separate cameras and then once identified as ready, a mechanised arm snips the fruit free and gently places it in a basket. The robot moves on rails between the rows of strawberries which are generally contained within elevated greenhouses. The machine costs 5 million yen. A new strawberry harvester made by Agrobot that will harvest strawberries on raised, hydroponic beds using 60 robotic arms is expected to be released in 2016.Mechanical harvesting of tomatoes started in 1965 and as of 2010, nearly all processing tomatoes are mechanically harvested. As of 2010, 95% of the US processed tomato crop is produced in California. Although fresh market tomatoes have substantial hand harvesting costs (in 2007, the costs of hand picking and hauling were $86 per ton which is 19% of total grower cost), packing and selling costs were more of a concern (at 44% of total grower cost) making it likely that cost saving efforts would be applied there.According to a 1977 report by the California Agrarian Action Project, during the summer of 1976 in California, many harvest machines had been equipped with a photo-electric scanner that sorted out green tomatoes among the ripe red ones using infrared lights and colour sensors. It worked in lieu of 5,000 hand harvesters causing displacement of innumerable farm labourers as well as wage cuts and shorter work periods. Migrant workers were hit the hardest. To withstand the rigour of the machines, new crop varieties were bred to match the automated pickers. UC Davis Professor G.C. Hanna propagated a thick-skinned tomato called VF-145. But even still, millions were damaged with impact cracks and university breeders produced a tougher and juiceless "square round" tomato. Small farms were of insufficient size to obtain financing to purchase the equipment and within 10 years, 85% of the state's 4,000 cannery tomato farmers were out of the business. This led to a concentrated tomato industry in California that "now packed 85% of the nation’s tomato products". The monoculture fields fostered rapid pest growth, requiring the use of "more than four million pounds of pesticides each year" which greatly affected the health of the soil, the farm workers, and possibly the customers.
See also
Farm equipment
Industrial agriculture
List of agricultural machinery
Agricultural Engineering
Agricultural drones
Sources
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 (license statement/permission). Text taken from In Brief to The State of Food and Agriculture 2022 – Leveraging automation in agriculture for transforming agrifood systems, FAO, FAO.
== References == |
regenerative agriculture | Regenerative agriculture is a conservation and rehabilitation approach to food and farming systems. It focuses on topsoil regeneration, increasing biodiversity, improving the water cycle, enhancing ecosystem services, supporting biosequestration, increasing resilience to climate change, and strengthening the health and vitality of farm soil.
Regenerative agriculture is not a specific practice itself. Rather, proponents of regenerative agriculture use a variety of sustainable agriculture techniques in combination. Practices include recycling as much farm waste as possible and adding composted material from sources outside the farm. Regenerative agriculture on small farms and gardens is often based on philosophies like permaculture, agroecology, agroforestry, restoration ecology, keyline design, and holistic management. Large farms are also increasingly adopting such techniques, and often use "no-till" and/or "reduced till" practices.
As soil health improves, input requirements may decrease, and crop yields may increase as soils are more resilient against extreme weather and harbor fewer pests and pathogens.Regenerative agriculture mitigates climate change through carbon dioxide removal, i.e. it draws carbon from the atmosphere and sequesters it. Along with decreasing carbon emissions, carbon sequestration practices are gaining popularity in agriculture, and individuals and groups are taking action to fight climate change.
History
Origins
Regenerative agriculture is based on various agricultural and ecological practices, with a particular emphasis on minimal soil disturbance and the practice of composting. Maynard Murray had similar ideas, using sea minerals. His work led to innovations in no-till practices, such as slash and mulch in tropical regions. Sheet mulching is a regenerative agriculture practice that smothers weeds and adds nutrients to the soil below.
In the early 1980s, the Rodale Institute began using the term ‘regenerative agriculture’. Rodale Publishing formed the Regenerative Agriculture Association, which began publishing regenerative agriculture books in 1987 and 1988.
By marching forward under the banner of sustainability we are, in effect, continuing to hamper ourselves by not accepting a challenging enough goal. I am not against the word sustainable, rather I favor regenerative agriculture.
However, the institute stopped using the term in the late 1980s, and it only appeared sporadically (in 2005 and 2008), until they released a white paper in 2014, titled "Regenerative Organic Agriculture and Climate Change". The paper's summary states, "we could sequester more than 100% of current annual CO2 emissions with a switch to common and inexpensive organic management practices, which we term 'regenerative organic agriculture.'" The paper described agricultural practices, like crop rotation, compost application, and reduced tillage, that are similar to organic agriculture methods.
In 2002, Storm Cunningham documented the beginning of what he called "restorative agriculture" in his first book, The Restoration Economy. Cunningham defined restorative agriculture as a technique that rebuilds the quantity and quality of topsoil, while also restoring local biodiversity (especially native pollinators) and watershed function. Restorative agriculture was one of the eight sectors of restorative development industries/disciplines in The Restoration Economy.
Recent developments (since 2010)
Indigenous cultures have long been privy to the innate knowledge of many of regenerative agriculture's techniques. These practices have existed for centuries, but the term itself has only been around for some decades, and as of late, has increasingly showed up in academic research since the early to mid 2010s in the fields of environmental science, plant science, and ecology. As the term expands in use, many books have been published on the topic and several organizations started to promote regenerative agriculture techniques. Allan Savory gave a TED talk on fighting and reversing climate change in 2013. He also launched The Savory Institute, which educates ranchers on methods of holistic land management. Abe Collins created LandStream to monitor ecosystem performance in regenerative agriculture farms. Eric Toensmeier had a book published on the subject in 2016. However, researchers at Wageningen University in the Netherlands found there to be no consistent definition of what people referencing "regenerative agriculture" meant. They also found that most of the work around this topic were instead the authors' attempt at shaping what regenerative agriculture meant.Founded in 2013, 501(c)3 non-profit Kiss the Ground was one of the first to publicize the term to a broader audience. Today the group runs a series of media, farmland, education, and policy programs to raise awareness around soil health and support farmers who aim to transition from conventional to regenerative land management practices. The film Kiss the Ground, executive produced by Julian Lennon and Gisele Bündchen and narrated by Woody Harrelson, was released in 2020. Soil Health Academy and Farmers Footprint are among other educational platforms based in the United States.Not all regenerative systems emphasize ruminants. In 2017, Reginaldo Haslett Marroquin published "In the Shadow of Green Man" with Per Andreeason, which detailed Haslett Marroquin's early life as a campesino in Guatemala and how these experiences led him to develop regenerative poultry agroforestry systems that are now being practiced and expanding in the United States and elsewhere.Several large corporations have also announced regenerative agriculture initiatives in the last few years. In 2019, General Mills announced an effort to promote regenerative agriculture practices in their supply chain. The farming practices have received criticism from academic and government experiments on sustainability in farming. In particular, Gunsmoke Farm partnered with General Mills to transition to regenerative agriculture practices and become a teaching hub for others. Experts from the area have expressed concerns about the farm now doing more harm than good, with agronomist Ruth Beck stating that "Environmental marketing got ahead of what farmers can actually do".In February 2021, the regenerative agriculture market gained traction after Joe Biden's Secretary of Agriculture Tom Vilsack made reference to it during his Senate Confirmation hearing. The Biden administration wants to utilize $30 billion from the USDA's Commodity Credit Corporations to incentive farmers to adopt sustainable practices. Vilsack stated in the hearing, "It is a great tool for us to create the kind of structure that will inform future farm bills about what will encourage carbon sequestration, what will encourage precision agriculture, what will encourage soil health and regenerative agricultural practices." After this announcement from the Biden administration, several national and international corporations announced initiatives into regenerative agriculture. During the House of Representatives Committee on Agriculture's first hearing on climate change, Gabe Brown, a proponent of regenerative agriculture, testified about the role of regenerative agriculture in both the economics and sustainability of farming.In 2021, PepsiCo announced that by 2030 they will work with the farmers in their supply chain to establish regenerative agriculture practices across their approximately 7 million acres. In 2021, Unilever announced an extensive implementation plan to incorporate regenerative agriculture throughout their supply chain. VF Corporation, the parent company of The North Face, Timberland, and Vans, announced in 2021 a partnership with Terra Genesis International to create a supply chain for their rubber that comes from sources utilizing regenerative agriculture. Nestle announced in 2021 a $1.8 billion investment in regenerative agriculture in an effort to reduce their emissions by 95%.A recent trend of small-scale farmers have been taking the lead in adopting regenerative agriculture principles.Several days before the opening of the 2022 United Nations Climate Change Conference, a report was published, sponsored by some of the biggest agricultural companies. The report was produced by Sustainable Markets Initiative, an organisation of companies trying to become climate friendly, established by King Charles III. According to the report, regenerative agriculture is already implemented on 15% of all cropland. Despite this, the rate of transition is "far too slow" and must be tripled by the year 2030 to prevent the global temperature passing the threshold of 1.5 degrees above preindustrial levels. Agricultural practices must immediately change in order to avoid the damage that would result. One of the authors emphasised that “The interconnection between human health and planetary health is more evident than ever before.” The authors proposed a set of measures for accelerating the transition, like creating metrics for measuring how much farming is sustainable, and paying farmers who will change their farming practices to more sustainable ones.
Principles
There are several individuals, groups, and organizations that have attempted to define what the principles of regenerative agriculture are. In their review of the existing literature on regenerative agriculture, researchers at Wageningen University created a database of 279 published research articles on regenerative agriculture. Their analysis of this database found that people using the term regenerative agriculture were using different principles to guide regenerative agriculture efforts. The 4 most consistent principles were found to be, 1) enhancing and improving soil health, 2) optimization of resource management, 3) alleviation of climate change, and 4) improvement of water quality and availability.
Notable definitions of principles
The organization The Carbon Underground created a set of principles that have been signed on to by a number of non-profits and corporations including Ben & Jerry's, Annie's, and the Rodale Institute, which was one of the first organization to use the term "Regenerative Agriculture". The principles they've outlined include building soil health and fertility, increase water percolation and retention, increasing biodiversity and ecosystem health, and reducing carbon emissions and current atmospheric CO2 levels.The group Terra Genesis International based in Thailand, and VF Corporation's partner in their regenerative agriculture initiative, created a set of 4 principles, which include:
"Progressively improve whole agroecosystems (soil, water and biodiversity)"
"Create context-specific designs and make holistic decisions that express the essence of each farm"
"Ensure and develop just and reciprocal relationships amongst all stakeholders"
"Continually grow and evolve individuals, farms, and communities to express their innate potential"Instead of focusing on the specifics of food production technologies, human ecologist Philip Loring suggests a food system-level focus on regeneration, arguing that it is the combination of flexibility and diversity in our food systems that supports regenerative ecological practices. Loring argues that, depending on the relative flexibility of people in the food system with respect to the foods they eat and the overall diversity of foods being produced and harvested, food systems can fall into one of four general patterns:
Regenerative (high diversity, high flexibility), where ecosystems are able to recycle and replenish used energy to usable forms, such as found in many Indigenous food systems
Degenerative (High diversity, low flexibility), where people fixate on specific resources and only switch to alternatives once the preferred commodity is exhausted, such as fishing down the food web.
Coerced (low diversity, low flexibility), where people subsidize prized resources at the expense of the surrounding ecosystem, such as in the Maine Lobster fishery
Impoverished (low diversity, high flexibility), where people are willing to be flexible but, because they are living in degraded ecosystems and possibly a povery trap, cannot allow ecosystems and resources to regenerate.The organisation Climate Farmers states that an outcome-based definition of regenerative agriculture is crucial. Topography, climate, soil type, water availability and ecological characteristics all impact agricultural systems. As such, the regenerative practices implemented on farms are only as successful as their consideration of the unique context in which they operate.
Loring's typology is based on a principle he calls the Conservation of Change, which states that change must always happen somewhere in ecosystems, and derives from the Second Law of Thermodynamics and Barry Commoner's premise in that, in ecosystems, "there is no free lunch".
Practices
Practices and principles used in regenerative farming include:
Alternative food networks (AFNs), commonly defined by attributes such as the spatial proximity between farmers and consumers.
AquacultureEcological aquaculture
Regenerative ocean farming
Agroecology
Agroforestry
Biochar/terra preta
Borders planted for pollinator habitat and other beneficial insects
Compost, compost tea, animal manures and thermal compost
Conservation farming, no-till farming, minimum tillage, and pasture cropping
Cover crops & multi-species cover crops
Home gardens, to mitigate the adverse effect of global food shocks and food price volatilities, also as a strategy to enhance household food security and nutritionRegrowing vegetables, for recycling and sustainable living
Keyline subsoiling
Livestock: well-managed grazing, animal integration and holistically managed grazingGrass-fed cattle
Natural sequence farming
Organic annual cropping and crop rotations
Perennial crops
Ponding banks, to prevent soil erosion also known as grading banks and, in parts of Australia, commonly known as Purvis banks, after Ron Purvis Jr of Woodgreen Station in the Northern Territory
Permaculture design
Polyculture and full-time succession planting of multiple and inter-crop plantings
Silvopasture
Soil food web
Environmental impacts
Carbon sequestration
Conventional agricultural practices such as plowing and tilling release carbon dioxide (CO2) from the soil by exposing organic matter to the surface and thus promoting oxidation. It is estimated that roughly a third of the total anthropogenic inputs of CO2 to the atmosphere since the industrial revolution have come from the degradation of soil organic matter and that 30–75% of global soil organic matter has been lost since the advent of tillage-based farming. Greenhouse gas (GHG) emissions associated with conventional soil and cropping activities represent 13.7% of anthropogenic emissions, or 1.86 Pg-C y−1. The raising of ruminant livestock also contributes GHGs, representing 11.6% of anthropogenic emissions, or 1.58 Pg-C y−1. Furthermore, runoff and siltation of water bodies associated with conventional farming practices promote eutrophication and emissions of methane.Regenerative agriculture practices such as no-till farming, rotational grazing, mixed crop rotation, cover cropping, and the application of compost and manure have the potential to reverse this trend. No-till farming reintroduces carbon back into the soil as crop residues are pressed down when seeding. Some studies suggest that adoption of no-till practices could triple soil carbon content in less than 15 years. Additionally, 1 Pg-C y−1, representing roughly a fourth to a third of anthropogenic CO2 emissions, may be sequestered by converting croplands to no-till systems on a global scale.There is mixed evidence on the carbon sequestration potential of regenerative grazing. A meta-analysis of relevant studies between 1972 and 2016 found that Holistic Planned Grazing had no better effect than continuous grazing on plant cover and biomass, although it may have benefited some areas with higher precipitation. However, some studies have found positive impacts compared to conventional grazing. One study found that regenerative grazing management, particularly adaptive multipaddock (AMP) grazing, has been shown to reduce soil degradation compared to continuous grazing and thus has the potential to mitigate carbon emissions from soil. Another study found that crop rotation and maintenance of permanent cover crops help to reduce soil erosion as well, and in conjunction with AMP grazing, may result in net carbon sequestration.There is a less developed evidence base comparing regenerative grazing with the absence of livestock on grasslands. Several peer-reviewed studies have found that excluding livestock completely from semi-arid grasslands can lead to significant recovery of vegetation and soil carbon sequestration. A 2021 peer-reviewed paper found that sparsely grazed and natural grasslands account for 80% of the total cumulative carbon sink of the world’s grasslands, whereas managed grasslands (i.e. with greater livestock density) have been a net greenhouse gas source over the past decade. A 2011 study found that multi-paddock grazing of the type endorsed by Savory resulted in more soil carbon sequestration than heavy continuous grazing, but very slightly less soil carbon sequestration than "graze exclosure" (excluding grazing livestock from land). Another peer-reviewed paper found that if current pastureland was restored to its former state as wild grasslands, shrublands, and sparse savannas without livestock this could store an estimated 15.2 - 59.9 Gt additional carbon.The total carbon sequestration potential of regenerative grazing has been debated between advocates and critics. One study suggests that total conversion of livestock raising to AMP grazing practices coupled with conservation cropping has the potential to convert North American farmlands to a carbon sink, sequestering approximately 1.2 Pg-C y−1. Over the next 25–50 years, the cumulative sequestration potential is 30-60 Pg-C. Additions of organic manures and compost further build soil organic carbon, thus contributing to carbon sequestration potential. However, a study by the Food and Climate Research Network in 2017 estimates that, on the basis of meta-study of the scientific literature, the total global soil carbon sequestration potential from grazing management ranges from 0.3-0.8 Gt CO2eq per year, which is equivalent to offsetting a maximum of 4-11% of current total global livestock emissions, and that “Expansion or intensification in the grazing sector as an approach to sequestering more carbon would lead to substantial increases in methane, nitrous oxide and land use change-induced CO2 emissions”, leading to an overall increase in emissions. Consistent with this, Project Drawdown (referenced in the film Kiss the Ground) estimates the total carbon sequestration potential of improved managed grazing at 13.72 - 20.92 Gigatons CO2eq between 2020–2050, equal to 0.46-0.70 Gt CO2eq per year. A 2022 peer-reviewed paper estimated the carbon sequestration potential of improved grazing management at a similar level of 0.15-0.70 Gt CO2eq per year.A research made by the Rodale institute suggests that a worldwide transition to regenerative agriculture can soak more than 100% of the CO2 currently emitted by people.
Nutrient cycling
Soil organic matter is the primary sink of nutrients necessary for plant growth such as nitrogen, phosphorus, zinc, sulfur, and molybdenum. Conventional tillage-based farming promotes rapid erosion and degradation of soil organic matter, depleting soil of plant nutrients and thus lowering productivity. Tillage, in conjunction with additions of inorganic fertilizer, also destroys soil microbial communities, reducing production of organic nutrients in soil. Practices that restore organic matter may be used to increase the total nutrient load of soil. For example, regenerative management of ruminant livestock in mixed-crop and grazing agroecosystems has been shown to improve soil nutrient cycling by encouraging the consumption and decomposition of residual crop biomass and promoting the recovery of nitrogen-fixing plant species. Regenerative crop management practices, namely the use of crop rotation to ensure permanent ground cover, have the potential to increase soil fertility and nutrient levels if nitrogen-fixing crops are included in the rotation. Crop rotation and rotational grazing also allow the nutrients in soil to recover between growing and grazing periods, thus further enhancing overall nutrient load and cycling.
Biodiversity
Conventional agricultural practices are generally understood to simplify agroecosystems through introduction of monocultures and eradication of diversity in soil microbial communities through chemical fertilization. In natural ecosystems, biodiversity serves to regulate ecosystem function internally, but under conventional agricultural systems, such control is lost and requires increasing levels of external, anthropogenic input. By contrast, regenerative agriculture practices including polycultures, mixed crop rotation, cover cropping, organic soil management, and low- or no-tillage methods have been shown to increase overall species diversity while reducing pest population densities. Additionally, practices that favor organic over inorganic inputs aid in restoring below-ground biodiversity by enhancing the functioning of soil microbial communities. A survey of organic and conventional farms in Europe found that on the whole, species across several taxa were higher in richness and/or abundance on organic farms compared to conventional ones, especially species whose populations have been demonstrably harmed as a direct result of conventional agriculture.AMP grazing can help improve biodiversity since increased soil organic carbon stocks also promotes a diversity of soil microbial communities. Implementation of AMP in North American prairies, for example, has been correlated with an increase in forage productivity and the restoration of plant species that had previously been decimated by continuous grazing practices. Furthermore, studies of arid and semiarid regions of the world where regenerative grazing has been practiced for a long time following prior periods of continuous grazing have shown a recovery of biodiversity, grass species, and pollinator species. Furthermore, crop diversification ensures that the agroecosystem remains productive when facing lower levels of soil fertility. Higher levels of plant diversity led to increases in numerous factors that contribute to soil fertility, such as soil N, K, Ca, Mg, and C, in CEC and in soil pH.
Criticism
Some members of the scientific community have criticized some of the claims made by proponents of regenerative agriculture as exaggerated and unsupported by evidence.
One of the prominent proponents of regenerative agriculture, Allan Savory, claimed in his TED talk that holistic grazing could reduce carbon-dioxide levels to pre-industrial levels in a span of 40 years. According to Skeptical Science: "it is not possible to increase productivity, increase numbers of cattle and store carbon using any grazing strategy, never-mind Holistic Management [...] Long term studies on the effect of grazing on soil carbon storage have been done before, and the results are not promising.[...] Because of the complex nature of carbon storage in soils, increasing global temperature, risk of desertification and methane emissions from livestock, it is unlikely that Holistic Management, or any management technique, can reverse climate change."
Commenting on his TED talk "How to Fight Desertification and Reverse Climate Change", Savory has since denied claiming that holistic grazing can reverse climate change, saying that “I have only used the words address climate change… although I have written and talked about reversing man-made desertification”. Savory has faced criticisms for claiming the carbon sequestration potential of holistic grazing is immune from empirical scientific study. For instance, in 2000, Savory said that "the scientific method never discovers anything" and “the scientific method protects us from cranks like me". A 2017 factsheet authored by Savory stated that “Every study of holistic planned grazing that has been done has provided results that are rejected by range scientists because there was no replication!". TABLE Debates sums this up by saying "Savory argues that standardisation, replication, and therefore experimental testing of HPG [Holistic Planned Grazing] as a whole (rather than just the grazing system associated with it) is not possible, and that therefore, it is incapable of study by experimental science", but "he does not explain how HPG can make causal knowledge claims with regards to combating desertification and climate mitigation, without recourse to science demonstrating such connections."According to a 2016 study published by the Swedish University of Agricultural Sciences, the actual rate at which improved grazing management could contribute to carbon sequestration is seven times lower than the claims made by Savory. The study concludes that holistic management cannot reverse climate change. A study by the Food and Climate Research Network in 2017 concluded that Savory's claims about carbon sequestration are "unrealistic" and very different from those issued by peer-reviewed studies.Tim Searchinger and Janet Ranganathan have expressed concerns about emphasis upon "Practices That Increase Soil Carbon at the Field Level" because "overestimating potential soil carbon gains could undermine efforts to advance effective climate mitigation in the agriculture sector." Instead Tim Searchinger and Janet Ranganathan say, "preserving the huge, existing reservoirs of vegetative and soil carbon in the world’s remaining forests and woody savannas by boosting productivity on existing agricultural land (a land sparing strategy) is the largest, potential climate mitigation prize of regenerative and other agricultural practices. Realizing these benefits requires implementing practices in ways that boost productivity and then linking those gains to governance and finance to protect natural ecosystems. In short, produce, protect and prosper are the most important opportunities for agriculture."
See also
Agroecological restoration
Agroecology
Agroforestry
Biointensive agriculture
Carbon farming
Farmer-managed natural regeneration
Korean natural farming
Permaculture
Regenerative design
External links
Regenerative Success
Can more sustainable agricultural practices be utilized
Learning from Nature
Kiss the Ground at IMDb
"Regenerative Agriculture". Regeneration.org. 2021.
VicNoTill at Horsham, Victoria. No-Till Regenerative Farming Systems Australia.
== References == |
history of agriculture | Agriculture began independently in different parts of the globe, and included a diverse range of taxa. At least eleven separate regions of the Old and New World were involved as independent centers of origin.
The development of agriculture about 12,000 years ago changed the way humans lived. They switched from nomadic hunter-gatherer lifestyles to permanent settlements and farming.Wild grains were collected and eaten from at least 105,000 years ago. However, domestication did not occur until much later. The earliest evidence of small-scale cultivation of edible grasses is from around 21,000 BC with the Ohalo II people on the shores of the Sea of Galilee. By around 9500 BC, the eight Neolithic founder crops – emmer wheat, einkorn wheat, hulled barley, peas, lentils, bitter vetch, chickpeas, and flax – were cultivated in the Levant. Rye may have been cultivated earlier, but this claim remains controversial. Rice was domesticated in China by 6200 BC with earliest known cultivation from 5700 BC, followed by mung, soy and azuki beans. Rice was also independently domesticated in West Africa and cultivated by 1000 BC. Pigs were domesticated in Mesopotamia around 11,000 years ago, followed by sheep. Cattle were domesticated from the wild aurochs in the areas of modern Turkey and India around 8500 BC. Camels were domesticated late, perhaps around 3000 BC.
In subsaharan Africa, sorghum was domesticated in the Sahel region of Africa by 3000 BC, along with pearl millet by 2000 BC. Yams were domesticated in several distinct locations, including West Africa (unknown date), and cowpeas by 2500 BC. Rice (African rice) was also independently domesticated in West Africa and cultivated by 1000 BC. Teff and likely finger millet were domesticated in Ethiopia by 3000 BC, along with noog, ensete, and coffee. Other plant foods domesticated in Africa include watermelon, okra, tamarind and black eyed peas, along with tree crops such as the kola nut and oil palm. Plantains were cultivated in Africa by 3000 BC and bananas by 1500 BC. The helmeted guineafowl was domesticated in West Africa. Sanga cattle was likely also domesticated in North-East Africa, around 7000 BC, and later crossbred with other species.In South America, agriculture began as early as 9000 BC, starting with the cultivation of several species of plants that later became only minor crops. In the Andes of South America, the potato was domesticated between 8000 BC and 5000 BC, along with beans, squash, tomatoes, peanuts, coca, llamas, alpacas, and guinea pigs. Cassava was domesticated in the Amazon Basin no later than 7000 BC. Maize (Zea mays) found its way to South America from Mesoamerica, where wild teosinte was domesticated about 7000 BC and selectively bred to become domestic maize. Cotton was domesticated in Peru by 4200 BC; another species of cotton was domesticated in Mesoamerica and became by far the most important species of cotton in the textile industry in modern times. Evidence of agriculture in the Eastern United States dates to about 3000 BCE. Several plants were cultivated, later to be replaced by the Three Sisters cultivation of maize, squash, and beans.
Sugarcane and some root vegetables were domesticated in New Guinea around 7000 BC. Bananas were cultivated and hybridized in the same period in Papua New Guinea. In Australia, agriculture was invented at a currently unspecified period, with the oldest eel traps of Budj Bim dating to 6,600 BC and the deployment of several crops ranging from yams to bananas.The Bronze Age, from c. 3300 BC, witnessed the intensification of agriculture in civilizations such as Mesopotamian Sumer, ancient Egypt, ancient Sudan, the Indus Valley civilisation of the Indian subcontinent, ancient China, and ancient Greece. From 100 BC to 1600 AD, world population continued to grow along with land use, as evidenced by the rapid increase in methane emissions from cattle and the cultivation of rice. During the Iron Age and era of classical antiquity, the expansion of ancient Rome, both the Republic and then the Empire, throughout the ancient Mediterranean and Western Europe built upon existing systems of agriculture while also establishing the manorial system that became a bedrock of medieval agriculture. In the Middle Ages, both in Europe and in the Islamic world, agriculture was transformed with improved techniques and the diffusion of crop plants, including the introduction of sugar, rice, cotton and fruit trees such as the orange to Europe by way of Al-Andalus. After the voyages of Christopher Columbus in 1492, the Columbian exchange brought New World crops such as maize, potatoes, tomatoes, sweet potatoes, and manioc to Europe, and Old World crops such as wheat, barley, rice, and turnips, and livestock including horses, cattle, sheep, and goats to the Americas.
Irrigation, crop rotation, and fertilizers were introduced soon after the Neolithic Revolution and developed much further in the past 200 years, starting with the British Agricultural Revolution. Since 1900, agriculture in the developed nations, and to a lesser extent in the developing world, has seen large rises in productivity as human labour has been replaced by mechanization, and assisted by synthetic fertilizers, pesticides, and selective breeding. The Haber-Bosch process allowed the synthesis of ammonium nitrate fertilizer on an industrial scale, greatly increasing crop yields. Modern agriculture has raised social, political, and environmental issues including overpopulation, water pollution, biofuels, genetically modified organisms, tariffs and farm subsidies. In response, organic farming developed in the twentieth century as an alternative to the use of synthetic pesticides.
Origins
Origin hypotheses
Scholars have developed a number of hypotheses to explain the historical origins of agriculture. Studies of the transition from hunter-gatherer to agricultural societies indicate an antecedent period of intensification and increasing sedentism; examples are the Natufian culture in the Levant, and the Early Chinese Neolithic in China. Current models indicate that wild stands that had been harvested previously started to be planted, but were not immediately domesticated.Localised climate change is the favoured explanation for the origins of agriculture in the Levant. When major climate change took place after the last ice age (c. 11,000 BC), much of the earth became subject to long dry seasons. These conditions favoured annual plants which die off in the long dry season, leaving a dormant seed or tuber. An abundance of readily storable wild grains and pulses enabled hunter-gatherers in some areas to form the first settled villages at this time.
Early development
Early people began altering communities of flora and fauna for their own benefit through means such as fire-stick farming and forest gardening very early.
Wild grains have been collected and eaten from at least 105,000 years ago, and possibly much longer. Exact dates are hard to determine, as people collected and ate seeds before domesticating them, and plant characteristics may have changed during this period without human selection. An example is the semi-tough rachis and larger seeds of cereals from just after the Younger Dryas (about 9500 BC) in the early Holocene in the Levant region of the Fertile Crescent. Monophyletic characteristics were attained without any human intervention, implying that apparent domestication of the cereal rachis could have occurred quite naturally.
Agriculture began independently in different parts of the globe and included a diverse range of taxa. At least 11 separate regions of the Old and New World were involved as independent centers of origin. Some of the earliest known domestications were of animals. Domestic pigs had multiple centres of origin in Eurasia, including Europe, East Asia and Southwest Asia, where wild boar were first domesticated about 10,500 years ago. Sheep were domesticated in Mesopotamia between 11,000 BC and 9000 BC. Cattle were domesticated from the wild aurochs in the areas of modern Turkey and Pakistan around 8500 BC. Camels were domesticated relatively late, perhaps around 3000 BC.
It was not until after 9500 BC that the eight so-called founder crops of agriculture appear: first emmer and einkorn wheat, then hulled barley, peas, lentils, bitter vetch, chick peas and flax. These eight crops occur more or less simultaneously on Pre-Pottery Neolithic B (PPNB) sites in the Levant, although wheat was the first to be grown and harvested on a significant scale. At around the same time (9400 BC), parthenocarpic fig trees were domesticated.Domesticated rye occurs in small quantities at some Neolithic sites in (Asia Minor) Turkey, such as the Pre-Pottery Neolithic B (c. 7600 – c. 6000 BC) Can Hasan III near Çatalhöyük, but is otherwise absent until the Bronze Age of central Europe, c. 1800–1500 BC. Claims of much earlier cultivation of rye, at the Epipalaeolithic site of Tell Abu Hureyra in the Euphrates valley of northern Syria, remain controversial. Critics point to inconsistencies in the radiocarbon dates, and identifications based solely on grain, rather than on chaff.By 8000 BC, farming was entrenched on the banks of the Nile. About this time, agriculture was developed independently in the Far East, probably in China, with rice rather than wheat as the primary crop. Maize was domesticated from the wild grass teosinte in southern Mexico by 6700 BC.
The potato (8000 BC), tomato, pepper (4000 BC), squash (8000 BC) and several varieties of bean (8000 BC onwards) were domesticated in the New World.Agriculture was independently developed on the island of New Guinea. Banana cultivation of Musa acuminata, including hybridization, dates back to 5000 BC, and possibly to 8000 BC, in Papua New Guinea.Bees were kept for honey in the Middle East around 7000 BC. Archaeological evidence from various sites on the Iberian peninsula suggest the domestication of plants and animals between 6000 and 4500 BC. Céide Fields in Ireland, consisting of extensive tracts of land enclosed by stone walls, date to 3500 BC and are the oldest known field systems in the world. The horse was domesticated in the Pontic steppe around 4000 BC. In Siberia, Cannabis was in use in China in Neolithic times and may have been domesticated there; it was in use both as a fibre for ropemaking and as a medicine in Ancient Egypt by about 2350 BC.
In northern China, millet was domesticated by early Sino-Tibetan speakers at around 8000 to 6000 BC, becoming the main crop of the Yellow River basin by 5500 BC. They were followed by mung, soy and azuki beans.
In southern China, rice was domesticated in the Yangtze River basin at around 11,500 to 6200 BC, along with the development of wetland agriculture, by early Austronesian and Hmong-Mien-speakers. Other food plants were also harvested, including acorns, water chestnuts, and foxnuts. Rice cultivation was later spread to Maritime Southeast Asia by the Austronesian expansion, starting at around 3,500 to 2,000 BC. This migration event also saw the introduction of cultivated and domesticated food plants from Taiwan, Maritime Southeast Asia, and New Guinea into the Pacific Islands as canoe plants. Contact with Sri Lanka and Southern India by Austronesian sailors also led to an exchange of food plants which later became the origin of the valuable spice trade. In the 1st millennium AD, Austronesian sailors also settled Madagascar and the Comoros, bringing Southeast Asian and South Asian food plants with them to the East African coast, including bananas and rice. Rice was also spread southwards into Mainland Southeast Asia by around 2000 to 1500 BC by the migrations of the early Austroasiatic and Kra-Dai-speakers.In the Sahel region of Africa, sorghum was domesticated by 3000 BC in Sudan and pearl millet by 2500 BC in Mali. Kola nut and coffee were also domesticated in Africa. In New Guinea, ancient Papuan peoples began practicing agriculture around 7000 BC, domesticating sugarcane and taro. In the Indus Valley from the eighth millennium BC onwards at Mehrgarh, 2-row and 6-row barley were cultivated, along with einkorn, emmer, and durum wheats, and dates. In the earliest levels of Merhgarh, wild game such as gazelle, swamp deer, blackbuck, chital, wild ass, wild goat, wild sheep, boar, and nilgai were all hunted for food. These are successively replaced by domesticated sheep, goats, and humped zebu cattle by the fifth millennium BC, indicating the gradual transition from hunting and gathering to agriculture.Maize and squash were domesticated in Mesoamerica; potatoes in South America, and sunflowers in the Eastern Woodlands of North America.
Civilizations
Sumer
Sumerian farmers grew the cereals barley and wheat, starting to live in villages from about 8000 BC. Given the low rainfall of the region, agriculture relied on the Tigris and Euphrates rivers. Irrigation canals leading from the rivers permitted the growth of cereals in large enough quantities to support cities. The first ploughs appear in pictographs from Uruk around 3000 BC; seed-ploughs that funneled seed into the ploughed furrow appear on seals around 2300 BC. Vegetable crops included chickpeas, lentils, peas, beans, onions, garlic, lettuce, leeks and mustard. They grew fruits including dates, grapes, apples, melons, and figs. Alongside their farming, Sumerians also caught fish and hunted fowl and gazelle. The meat of sheep, goats, cows and poultry was eaten, mainly by the elite. Fish was preserved by drying, salting and smoking.
Ancient Egypt
The civilization of Ancient Egypt was indebted to the Nile River and its dependable seasonal flooding. The river's predictability and the fertile soil allowed the Egyptians to build an empire on the basis of great agricultural wealth. Egyptians were among the first peoples to practice agriculture on a large scale, starting in the pre-dynastic period from the end of the Paleolithic into the Neolithic, between around 10,000 BC and 4000 BC. This was made possible with the development of basin irrigation. Their staple food crops were grains such as wheat and barley, alongside industrial crops such as flax and papyrus. Archaeological evidence also suggests that the spread of agriculture was facilitated by the influx of farming communities from the tropical Sahara 6,500 years ago.
South Asia
Jujube was domesticated in the Indian subcontinent by 9000 BC. Barley and wheat cultivation – along with the domestication of cattle, primarily sheep and goats – followed in Mehrgarh culture by 8000–6000 BC. This period also saw the first domestication of the elephant. Pastoral farming in India included threshing, planting crops in rows – either of two or of six – and storing grain in granaries. Cotton was cultivated by the 5th–4th millennium BC. By the 5th millennium BC, agricultural communities became widespread in Kashmir. Irrigation was developed in the Indus Valley Civilisation by around 4500 BC. The size and prosperity of the Indus civilization grew as a result of this innovation, leading to more thoroughly planned settlements which used drainage and sewers. Archeological evidence of an animal-drawn plough dates back to 2500 BC in the Indus Valley Civilization.
Ancient China
Records from the Warring States, Qin dynasty, and Han dynasty provide a picture of early Chinese agriculture from the 5th century BC to 2nd century AD which included a nationwide granary system and widespread use of sericulture. An important early Chinese book on agriculture is the Qimin Yaoshu of AD 535, written by Jia Sixie. Jia's writing style was straightforward and lucid relative to the elaborate and allusive writing typical of the time. Jia's book was also very long, with over one hundred thousand written Chinese characters, and it quoted many other Chinese books that were written previously, but no longer survive. The contents of Jia's 6th century book include sections on land preparation, seeding, cultivation, orchard management, forestry, and animal husbandry. The book also includes peripherally related content covering trade and culinary uses for crops. The work and the style in which it was written proved influential on later Chinese agronomists, such as Wang Zhen and his groundbreaking Nong Shu of 1313.
For agricultural purposes, the Chinese had innovated the hydraulic-powered trip hammer by the 1st century BC. Although it found other purposes, its main function to pound, decorticate, and polish grain that otherwise would have been done manually. The Chinese also began using the square-pallet chain pump by the 1st century AD, powered by a waterwheel or oxen pulling an on a system of mechanical wheels. Although the chain pump found use in public works of providing water for urban and palatial pipe systems, it was used largely to lift water from a lower to higher elevation in filling irrigation canals and channels for farmland. By the end of the Han dynasty in the late 2nd century, heavy ploughs had been developed with iron ploughshares and mouldboards. These slowly spread west, revolutionizing farming in Northern Europe by the 10th century. (Thomas Glick, however, argues for a development of the Chinese plough as late as the 9th century, implying its spread east from similar designs known in Italy by the 7th century.)Asian rice was domesticated 8,200–13,500 years ago in China, with a single genetic origin from the wild rice Oryza rufipogon, in the Pearl River valley region of China. Rice cultivation then spread to South and Southeast Asia.
Ancient Greece and Hellenistic world
The major cereal crops of the ancient Mediterranean region were wheat, emmer, and barley, while common vegetables included peas, beans, fava, and olives, dairy products came mostly from sheep and goats, and meat, which was consumed on rare occasion for most people, usually consisted of pork, beef, and lamb. Agriculture in ancient Greece was hindered by the topography of mainland Greece that only allowed for roughly 10% of the land to be cultivated properly, necessitating the specialised exportation of oil and wine and importation of grains from Thrace (centered in what is now Bulgaria) and the Greek colonies of Pontic Greeks near the Black Sea. During the Hellenistic period, the Ptolemaic Empire controlled Egypt, Cyprus, Phoenicia, and Cyrenaica, major grain-producing regions that mainland Greeks depended on for subsistence, while the Ptolemaic grain market also played a critical role in the rise of the Roman Republic. In the Seleucid Empire, Mesopotamia was a crucial area for the production of wheat, while nomadic animal husbandry was also practiced in other parts.
Roman Empire
In the Greco-Roman world of Classical antiquity, Roman agriculture was built on techniques originally pioneered by the Sumerians, transmitted to them by subsequent cultures, with a specific emphasis on the cultivation of crops for trade and export. The Romans laid the groundwork for the manorial economic system, involving serfdom, which flourished in the Middle Ages. The farm sizes in Rome can be divided into three categories. Small farms were from 18 to 88 iugera (one iugerum is equal to about 0.65 acre). Medium-sized farms were from 80 to 500 iugera (singular iugerum). Large estates (called latifundia) were over 500 iugera. The Romans had four systems of farm management: direct work by the owner and his family; slaves doing work under the supervision of slave managers; tenant farming or sharecropping in which the owner and a tenant divide up a farm's produce; and situations in which a farm was leased to a tenant.
The Americas
Agricultural history took a different path from the Old World as the Americas lacked large-seeded, easily domesticated grains (such as wheat and barley) and large domestic animals that could be used for agricultural labor. Rather than the practice which developed in the Old World of sowing a field with a single crop, pre-historic American agriculture usually consisted of cultivating many crops close to each other utilizing only hand labor. Moreover, agricultural areas in the Americas lacked the uniformity of the east–west area of Mediterranean and semi-arid climates in southern Europe and southwestern Asia, but instead had a north–south pattern with a variety of different climatic zones in close proximity to each other. This fostered the domestication of many different plants.At the time of first contact between the Europeans and the Americans, the Europeans practiced "extensive agriculture, based on the plough and draught animals," with tenants under landlords, but also forced labor or slavery, while the Indigenous peoples of the Americas practiced "intensive agriculture, based on human labour." Europeans wanted control of land for the grazing of their livestock and property rights for the control of production. Though they were impressed with the productivity of traditional farming techniques, they saw no connection to their system and were dismissive of Native American practices as "gardening" rather than a commercializable enterprise. Due to several thousand years of selective breeding, maize, the hemisphere's most important crop, was more productive than Old World grain crops. Maize produced two and one-half times more calories per acre than wheat and barley.
South America
The earliest known areas of possible agriculture in the Americas dating to about 9000 BC are in Colombia, near present-day Pereira, and by the Las Vegas culture in Ecuador on the Santa Elena peninsula. The plants cultivated (or manipulated by humans) were lerén (Calathea allouia), arrowroot (Maranta arundinacea), squash (Cucurbita species), and bottle gourd (Lagenaria siceraria). All are plants of humid climates and their existence at this time on the semi-arid Santa Elena peninsula may be evidence that they were transplanted there from more humid environments. In another study, this area of South America was identified as one of the four oldest places of origin for agriculture, along with the Fertile Crescent, China, and Mesoamerica, dated between 6200 BC and 10000 BC. (To facilitate comprehension by readers, Radiocarbon calibrated BP dates in the above sources have been converted to BC.)
In the Andes region, with civilizations including the Inca, the major crop was the potato, domesticated between 8000 and 5000 BC. Coca, still a major crop to this day, was domesticated in the Andes, as were the peanut, tomato, tobacco, and pineapple. Cotton was domesticated in Peru by 4200 BC. Animals were also domesticated, including llamas, alpacas, and guinea pigs. The people of the Inca Empire of South America grew large surpluses of food which they stored in buildings called Qullqas.The most important crop domesticated in the Amazon Basin and tropical lowlands was probably cassava, (Manihot esculenta), which was domesticated before 7000 BCE, likely in the Rondônia and Mato Grosso states of Brazil. The Guaitecas Archipelago in modern Chile was the southern limit of Pre-Hispanic agriculture near 44° South latitude, as noted by the mention of the cultivation of Chiloé potatoes by a Spanish expedition in 1557.
Mesoamerica
In Mesoamerica, wild teosinte was transformed through human selection into the ancestor of modern maize, about 7,000 BC. It gradually spread across North America and to South America and was the most important crop of Native Americans at the time of European exploration. Other Mesoamerican crops include hundreds of varieties of locally domesticated squash and beans, while cocoa, also domesticated in the region, was a major crop. The turkey, one of the most important poultry birds, was probably domesticated in Mexico or the U.S. Southwest.In Mesoamerica, the Aztecs were active farmers and had an agriculturally focused economy. The land around Lake Texcoco was fertile, but not large enough to produce the amount of food needed for the population of their expanding empire. The Aztecs developed irrigation systems, formed terraced hillsides, fertilized their soil, and developed chinampas or artificial islands, also known as "floating gardens". The Mayas between 400 BC to 900 AD used extensive canal and raised field systems to farm swampland on the Yucatán Peninsula.
North America
The indigenous people of the Eastern U.S. domesticated numerous crops. Sunflowers, tobacco, varieties of squash and Chenopodium, as well as crops no longer grown, including marsh elder and little barley. Wild foods including wild rice and maple sugar were harvested. The domesticated strawberry is a hybrid of a Chilean and a North American species, developed by breeding in Europe and North America. Two major crops, pecans and Concord grapes, were used extensively in prehistoric times but do not appear to have been domesticated until the 19th century.The indigenous people in what is now California and the Pacific Northwest practiced various forms of forest gardening and fire-stick farming in the forests, grasslands, mixed woodlands, and wetlands, ensuring that desired food and medicine plants continued to be available. The natives controlled fire on a regional scale to create a low-intensity fire ecology which prevented larger, catastrophic fires and sustained a low-density agriculture in loose rotation; a sort of "wild" permaculture.A system of companion planting called the Three Sisters was developed in North America. Three crops that complemented each other were planted together: winter squash, maize (corn), and climbing beans (typically tepary beans or common beans). The maize provides a structure for the beans to climb, eliminating the need for poles. The beans provide the nitrogen to the soil that the other plants use, and the squash spreads along the ground, blocking the sunlight, helping prevent the establishment of weeds. The squash leaves also act as a "living mulch".
Sub-Saharan Africa
In the Sahel region, civilizations such as the Mali and Songhai empires cultivated sorghum and pearl millet, which were domesticated between 3000 and 2500 BC. The donkey was domesticated in Nubia at approximately 5000 BC. Archaeological evidence suggests that Sanga cattle may have been independently domesticated in East Africa at around 1600 BC.In the tropical region of West Africa, crops such as black-eyed peas, Sea Island red peas, yams, kola nuts, Jollof rice and kokoro were domesticated between 3000 and 1000 BC. The coastal region of West Africa is often referred to as the "Yam Belt", due to its high production of yams. The guineafowl is a poultry bird that was domesticated in West Africa, and while the time of the guineafowl's domestication remains unclear, there is evidence that it was present in Ancient Greece during the 5th century BC.Several species of coffee were also domesticated throughout Sub-Saharan Africa, with Coffea arabica originating in Ethiopia and serving as the main production of modern-day coffee since the late 15th century.
Oceania
Australia
Indigenous Australians were predominately nomadic hunter-gatherers. Due to the policy of terra nullius, Aboriginals were regarded as not having been capable of sustained agriculture. However, the current consensus is that various agricultural methods were employed by the indigenous people.In two regions of Central Australia, the central west coast and eastern central Australia, forms of agriculture were practiced. People living in permanent settlements of over 200 residents sowed or planted on a large scale and stored the harvested food. The Nhanda and Amangu of the central west coast grew yams (Dioscorea hastifolia), while various groups in eastern central Australia (the Corners Region) planted and harvested bush onions (yaua – Cyperus bulbosus), native millet (cooly, tindil – Panicum decompositum) and a sporocarp, ngardu (Marsilea drummondii).: 281–304 Indigenous Australians used systematic burning, fire-stick farming, to enhance natural productivity. In the 1970s and 1980s archaeological research in south west Victoria established that the Gunditjmara and other groups had developed sophisticated eel farming and fish trapping systems over a period of nearly 5,000 years. The archaeologist Harry Lourandos suggested in the 1980s that there was evidence of 'intensification' in progress across Australia, a process that appeared to have continued through the preceding 5,000 years. These concepts led the historian Bill Gammage to argue that in effect the whole continent was a managed landscape.Torres Strait Islanders are now known to have planted bananas.
Pacific Islands
In New Guinea, archaeological evidence suggests that agriculture independently emerged around 7,000 years ago with the domestication of crops such as bananas and taro. Pigs and chickens were imported to New Guinea, which were later innovated by other Pacific Island nations, such as those in Polynesia.
Middle Ages and Early Modern period
Europe
The Middle Ages saw further improvements in agriculture. Monasteries spread throughout Europe and became important centers for the collection of knowledge related to agriculture and forestry. The manorial system allowed large landowners to control their land and its laborers, in the form of peasants or serfs. During the medieval period, the Arab world was critical in the exchange of crops and technology between the European, Asia and African continents. Besides transporting numerous crops, they introduced the concept of summer irrigation to Europe and developed the beginnings of the plantation system of sugarcane growing through the use of slaves for intensive cultivation.
By AD 900, developments in iron smelting allowed for increased production in Europe, leading to developments in the production of agricultural implements such as ploughs, hand tools and horse shoes. The carruca heavy plough improved on the earlier scratch plough, with the adoption of the Chinese mouldboard plough to turn over the heavy, wet soils of northern Europe. This led to the clearing of northern European forests and an increase in agricultural production, which in turn led to an increase in population. At the same time, some farmers in Europe moved from a two field crop rotation to a three-field crop rotation in which one field of three was left fallow every year. This resulted in increased productivity and nutrition, as the change in rotations permitted nitrogen-fixing legumes such as peas, lentils and beans. Improved horse harnesses and the whippletree further improved cultivation.Watermills were introduced by the Romans, but were improved throughout the Middle Ages, along with windmills, and used to grind grains into flour, to cut wood and to process flax and wool.Crops included wheat, rye, barley and oats. Peas, beans, and vetches became common from the 13th century onward as a fodder crop for animals and also for their nitrogen-fixation fertilizing properties. Crop yields peaked in the 13th century, and stayed more or less steady until the 18th century. Though the limitations of medieval farming were once thought to have provided a ceiling for the population growth in the Middle Ages, recent studies have shown that the technology of medieval agriculture was always sufficient for the needs of the people under normal circumstances, and that it was only during exceptionally harsh times, such as the terrible weather of 1315–17, that the needs of the population could not be met.
Arab world
From the 8th century to the 14th century, the Islamic world underwent a transformation in agricultural practice, described by the historian Andrew Watson as the Arab agricultural revolution. This transformation was driven by a number of factors including the diffusion of many crops and plants along Muslim trade routes, the spread of more advanced farming techniques, and an agricultural-economic system which promoted increased yields and efficiency. The shift in agricultural practice changed the economy, population distribution, vegetation cover, agricultural production, population levels, urban growth, the distribution of the labour force, cooking, diet, and clothing across the Islamic world. Muslim traders covered much of the Old World, and trade enabled the diffusion of many crops, plants and farming techniques across the region, as well as the adaptation of crops, plants and techniques from beyond the Islamic world. This diffusion introduced major crops to Europe by way of Al-Andalus, along with the techniques for their cultivation and cuisine. Sugar cane, rice, and cotton were among the major crops transferred, along with citrus and other fruit trees, nut trees, vegetables such as aubergine, spinach and chard, and the use of imported spices such as cumin, coriander, nutmeg and cinnamon. Intensive irrigation, crop rotation, and agricultural manuals were widely adopted. Irrigation, partly based on Roman technology, made use of noria water wheels, water mills, dams and reservoirs.
Columbian exchange
After 1492, a global exchange of previously local crops and livestock breeds occurred. Maize, potatoes, sweet potatoes and manioc were the key crops that spread from the New World to the Old, while varieties of wheat, barley, rice and turnips traveled from the Old World to the New. There had been few livestock species in the New World, with horses, cattle, sheep and goats being completely unknown before their arrival with Old World settlers. Crops moving in both directions across the Atlantic Ocean caused population growth around the world and a lasting effect on many cultures in the Early Modern period. Maize and cassava were introduced from Brazil into Africa by Portuguese traders in the 16th century, becoming staple foods, replacing native African crops. After its introduction from South America to Spain in the late 1500s, the potato became a staple crop throughout Europe by the late 1700s. The potato allowed farmers to produce more food, and initially added variety to the European diet. The increased supply of food reduced disease, increased births and reduced mortality, causing a population boom throughout the British Empire, the US and Europe. The introduction of the potato also brought about the first intensive use of fertilizer, in the form of guano imported to Europe from Peru, and the first artificial pesticide, in the form of an arsenic compound used to fight Colorado potato beetles. Before the adoption of the potato as a major crop, the dependence on grain had caused repetitive regional and national famines when the crops failed, including 17 major famines in England between 1523 and 1623. The resulting dependence on the potato however caused the European Potato Failure, a disastrous crop failure from disease that resulted in widespread famine and the death of over one million people in Ireland alone.
Modern agriculture
British agricultural revolution
Between the 17th century and the mid-19th century, Britain saw a large increase in agricultural productivity and net output. New agricultural practices like enclosure, mechanization, four-field crop rotation to maintain soil nutrients, and selective breeding enabled an unprecedented population growth to 5.7 million in 1750, freeing up a significant percentage of the workforce, and thereby helped drive the Industrial Revolution. The productivity of wheat went up from 19 US bushels (670 L; 150 US dry gal; 150 imp gal) per acre in 1720 to around 30 US bushels (1,100 L; 240 US dry gal; 230 imp gal) by 1840, marking a major turning point in history.
Advice on more productive techniques for farming began to appear in England in the mid-17th century, from writers such as Samuel Hartlib, Walter Blith and others. The main problem in sustaining agriculture in one place for a long time was the depletion of nutrients, most importantly nitrogen levels, in the soil. To allow the soil to regenerate, productive land was often let fallow and, in some places, crop rotation was used. The Dutch four-field rotation system was popularised by the British agriculturist Charles Townshend in the 18th century. The system (wheat, turnips, barley and clover) opened up a fodder crop and grazing crop allowing livestock to be bred year-round. The use of clover was especially important as the legume roots replenished soil nitrates.
The mechanisation and rationalisation of agriculture was another important factor. Robert Bakewell and Thomas Coke introduced selective breeding and initiated a process of inbreeding to maximise desirable traits from the mid 18th century, such as the New Leicester sheep. Machines were invented to improve the efficiency of various agricultural operation, such as Jethro Tull's seed drill of 1701 that mechanised seeding at the correct depth and spacing and Andrew Meikle's threshing machine of 1784. Ploughs were steadily improved, from Joseph Foljambe's Rotherham iron plough in 1730 to James Small's improved "Scots Plough" metal in 1763. In 1789 Ransomes, Sims & Jefferies was producing 86 plough models for different soils. Powered farm machinery began with Richard Trevithick's stationary steam engine, used to drive a threshing machine, in 1812. Mechanisation spread to additional farm uses throughout the 19th century. The first petrol-driven tractor was built in America by John Froelich in 1892.John Bennet Lawes began the scientific investigation of fertilization at the Rothamsted Experimental Station in 1843. He investigated the impact of inorganic and organic fertilizers on crop yield and founded one of the first artificial fertilizer manufacturing factories in 1842. Fertilizer, in the shape of sodium nitrate deposits in Chile, was imported to Britain by John Thomas North as well as guano (birds droppings). The first commercial process for fertilizer production was the obtaining of phosphate from the dissolution of coprolites in sulphuric acid.
20th century
Dan Albone constructed the first commercially successful gasoline-powered general-purpose tractor in 1901, and the 1923 International Harvester Farmall tractor marked a major point in the replacement of draft animals (particularly horses) with machines. Since that time, self-propelled mechanical harvesters (combines), planters, transplanters and other equipment have been developed, further revolutionizing agriculture. These inventions allowed farming tasks to be done with a speed and on a scale previously impossible, leading modern farms to output much greater volumes of high-quality produce per land unit.
The Haber-Bosch method for synthesizing ammonium nitrate represented a major breakthrough and allowed crop yields to overcome previous constraints. It was first patented by German chemist Fritz Haber. In 1910 Carl Bosch, while working for German chemical company BASF, successfully commercialized the process and secured further patents. In the years after World War II, the use of synthetic fertilizer increased rapidly, in sync with the increasing world population.Collective farming was widely practiced in the Soviet Union, the Eastern Bloc countries, China, and Vietnam, starting in the 1930s in the Soviet Union; one result was the Soviet famine of 1932–33. Another consequence occurred during the Great Leap Forward in China initiated by Mao Tse-tung that resulted in the Great Chinese Famine from 1959 to 1961 and ultimately reshaped the thinking of Deng Xiaoping.
In the past century agriculture has been characterized by increased productivity, the substitution of synthetic fertilizers and pesticides for labour, water pollution, and farm subsidies. Other applications of scientific research since 1950 in agriculture include gene manipulation, hydroponics, and the development of economically viable biofuels such as ethanol.The number of people involved in farming in industrial countries fell radically from 24 percent of the American population to 1.5 percent in 2002. The number of farms also decreased, and their ownership became more concentrated; for example, between 1967 and 2002, one million pig farms in America consolidated into 114,000, with 80 percent of the production on factory farms. According to the Worldwatch Institute, 74 percent of the world's poultry, 43 percent of beef, and 68 percent of eggs are produced this way.Famines however continued to sweep the globe through the 20th century. Through the effects of climatic events, government policy, war and crop failure, millions of people died in each of at least ten famines between the 1920s and the 1990s.
Green Revolution
The Green Revolution was a series of research, development, and technology transfer initiatives, between the 1940s and the late 1970s. It increased agriculture production around the world, especially from the late 1960s. The initiatives, led by Norman Borlaug and credited with saving over a billion people from starvation, involved the development of high-yielding varieties of cereal grains, expansion of irrigation infrastructure, modernization of management techniques, distribution of hybridized seeds, synthetic fertilizers, and pesticides to farmers.Synthetic nitrogen, along with mined rock phosphate, pesticides and mechanization, have greatly increased crop yields in the early 20th century. Increased supply of grains has led to cheaper livestock as well. Further, global yield increases were experienced later in the 20th century when high-yield varieties of common staple grains such as rice, wheat, and corn were introduced as a part of the Green Revolution. The Green Revolution exported the technologies (including pesticides and synthetic nitrogen) of the developed world to the developing world. Thomas Malthus famously predicted that the Earth would not be able to support its growing population, but technologies such as the Green Revolution have allowed the world to produce a surplus of food.Although the Green Revolution at first significantly increased rice yields in Asia, yield then levelled off. The genetic "yield potential" has increased for wheat, but the yield potential for rice has not increased since 1966, and the yield potential for maize has "barely increased in 35 years". It takes only a decade or two for herbicide-resistant weeds to emerge, and insects become resistant to insecticides within about a decade, delayed somewhat by crop rotation.
Organic agriculture
For most of its history, agriculture has been organic, without synthetic fertilisers or pesticides, and without GMOs. With the advent of chemical agriculture, Rudolf Steiner called for farming without synthetic pesticides, and his Agriculture Course of 1924 laid the foundation for biodynamic agriculture. Lord Northbourne developed these ideas and presented his manifesto of organic farming in 1940. This became a worldwide movement, and organic farming is now practiced in many countries.
See also
References
Further reading
Books
Manning, Richard (1 February 2005). Against the Grain: How Agriculture Has Hijacked Civilization. Farrar, Straus and Giroux. ISBN 978-1-4668-2342-6.
Surveys
Civitello, Linda. Cuisine and Culture: A History of Food and People (Wiley, 2011) excerpt
Federico, Giovanni. Feeding the World: An Economic History of Agriculture 1800–2000 (Princeton UP, 2005) highly quantitative
Grew, Raymond. Food in Global History (1999)
Heiser, Charles B. Seed to Civilization: The Story of Food (W.H. Freeman, 1990)
Herr, Richard, ed. Themes in Rural History of the Western World (Iowa State UP, 1993)
Mazoyer, Marcel, and Laurence Roudart. A History of World Agriculture: From the Neolithic Age to the Current Crisis (Monthly Review Press, 2006) Marxist perspective
Prentice, E. Parmalee. Hunger and History: The Influence of Hunger on Human History (Harper, 1939)
Tauger, Mark. Agriculture in World History (Routledge, 2008)
Premodern
Bakels, C.C. The Western European Loess Belt: Agrarian History, 5300 BC – AD 1000 (Springer, 2009)
Barker, Graeme, and Candice Goucher, eds. The Cambridge World History: Volume 2, A World with Agriculture, 12000 BCE–500 CE. (Cambridge UP, 2015)
Bowman, Alan K. and Rogan, Eugene, eds. Agriculture in Egypt: From Pharaonic to Modern Times (Oxford UP, 1999)
Cohen, M.N. The Food Crisis in Prehistory: Overpopulation and the Origins of Agriculture (Yale UP, 1977)
Crummey, Donald and Stewart, C.C., eds. Modes of Production in Africa: The Precolonial Era (Sagem 1981)
Diamond, Jared. Guns, Germs, and Steel (W.W. Norton, 1997)
Duncan-Jones, Richard. Economy of the Roman Empire (Cambridge UP, 1982)
Habib, Irfan. Agrarian System of Mughal India (Oxford UP, 3rd ed. 2013)
Harris, D.R., ed. The Origins and Spread of Agriculture and Pastoralism in Eurasia, (Routledge, 1996)
Isager, Signe and Jens Erik Skydsgaard. Ancient Greek Agriculture: An Introduction (Routledge, 1995)
Lee, Mabel Ping-hua. The economic history of china: with special reference to agriculture (Columbia University, 1921)
Murray, Jacqueline. The First European Agriculture (Edinburgh UP, 1970)
Oka, H-I. Origin of Cultivated Rice (Elsevier, 2012)
Price, T.D. and A. Gebauer, eds. Last Hunters – First Farmers: New Perspectives on the Prehistoric Transition to Agriculture (1995)
Srivastava, Vinod Chandra, ed. History of Agriculture in India (5 vols., 2014). From 2000 BC to present.
Stevens, C.E. "Agriculture and Rural Life in the Later Roman Empire" in Cambridge Economic History of Europe, Vol. I, The Agrarian Life of the Middle Ages (Cambridge UP, 1971)
Teall, John L. (1959). "The grain supply of the Byzantine Empire, 330–1025". Dumbarton Oaks Papers. 13: 87–139. doi:10.2307/1291130. JSTOR 1291130.
Yasuda, Y., ed. The Origins of Pottery and Agriculture (SAB, 2003)
Modern
Collingham, E.M. The Taste of War: World War Two and the Battle for Food (Penguin, 2012)
Kerridge, Erik. "The Agricultural Revolution Reconsidered." Agricultural History ( 1969) 43:4, 463–475. in JSTOR, in Britain, 1750–1850
Ludden, David, ed. New Cambridge History of India: An Agrarian History of South Asia (Cambridge, 1999).
McNeill, William H. (1999). "How the Potato Changed the World's History". Social Research. 66 (1): 67–83. JSTOR 40971302. PMID 22416329.
Mintz, Sidney. Sweetness and Power: The Place of Sugar in Modern History (Penguin, 1986)
Reader, John. Propitious Esculent: The Potato in World History (Heinemann, 2008) a standard scholarly history
Salaman, Redcliffe N. The History and Social Influence of the Potato (Cambridge, 2010)
Europe
Ambrosoli, Mauro. The Wild and the Sown: Botany and Agriculture in Western Europe, 1350–1850 (Cambridge UP, 1997)
Brassley, Paul, Yves Segers, and Leen Van Molle, eds. War, Agriculture, and Food: Rural Europe from the 1930s to the 1950s (Routledge, 2012)
Brown, Jonathan. Agriculture in England: A Survey of Farming, 1870–1947 (Manchester UP, 1987)
Clark, Gregory (2007). "The long march of history: Farm wages, population, and economic growth, England 1209–1869" (PDF). Economic History Review. 60 (1): 97–135. doi:10.1111/j.1468-0289.2006.00358.x. S2CID 154325999.
Dovring, Folke, ed. Land and labor in Europe in the twentieth century: a comparative survey of recent agrarian history (Springer, 1965)
Gras, Norman. A history of agriculture in Europe and America (Crofts, 1925)
Harvey, Nigel. The Industrial Archaeology of Farming in England and Wales (HarperCollins, 1980)
Hoffman, Philip T. Growth in a Traditional Society: The French Countryside, 1450–1815 (Princeton UP, 1996)
Hoyle, Richard W., ed. The Farmer in England, 1650–1980 (Routledge, 2013) online review
Kussmaul, Ann. A General View of the Rural Economy of England, 1538–1840 (Cambridge University Press, 1990)
Langdon, John. Horses, Oxen and Technological Innovation: The Use of Draught Animals in English Farming from 1066 to 1500 (Cambridge UP, 1986)
McNeill, William H. (1948). "The Introduction of the Potato into Ireland". Journal of Modern History. 21 (3): 218–221. doi:10.1086/237272. JSTOR 1876068. S2CID 145099646.
Moon, David. The Plough that Broke the Steppes: Agriculture and Environment on Russia's Grasslands, 1700–1914 (Oxford UP, 2014)
Slicher van Bath, B.H. The Agrarian History of Western Europe, AD 500–1850 (Edward Arnold, reprint, 1963)
Thirsk, Joan, et al. The Agrarian History of England and Wales (Cambridge University Press, 8 vols., 1978)
Williamson, Tom. Transformation of Rural England: Farming and the Landscape 1700–1870 (Liverpool UP, 2002)
Zweiniger-Bargielowska, Ina, Rachel Duffett, and Alain Drouard, eds. Food and war in twentieth century Europe (Ashgate, 2011)
North America
Cochrane, Willard W. The Development of American Agriculture: A Historical Analysis (University of Minnesota P, 1993)
Fite, Gilbert C. (1983). "American Farmers: The New Minority". Annals of Iowa. 46 (7): 553–555. doi:10.17077/0003-4827.8923.
Gras, Norman. A History of Agriculture in Europe and America, (F.S. Crofts, 1925)
Gray, L.C. History of Agriculture in the Southern United States to 1860 (P. Smith, 1933) Volume I online; Volume 2
Hart, John Fraser. The Changing Scale of American Agriculture. (University of Virginia Press, 2004)
Hurt, R. Douglas. American Agriculture: A Brief History (Purdue UP, 2002)
Mundlak, Yair (2005). "Economic Growth: Lessons from Two Centuries of American Agriculture". Journal of Economic Literature. 43 (4): 989–1024. CiteSeerX 10.1.1.582.8537. doi:10.1257/002205105775362005.
O'Sullivan, Robin. American Organic: A Cultural History of Farming, Gardening, Shopping, and Eating (University Press of Kansas, 2015)
Rasmussen, Wayne D., ed. Readings in the history of American agriculture (University of Illinois Press, 1960)
Robert, Joseph C. The story of tobacco in America (University of North Carolina Press, 1949)
Russell, Howard. A Long Deep Furrow: Three Centuries of Farming In New England (UP of New England, 1981)
Russell, Peter A. How Agriculture Made Canada: Farming in the Nineteenth Century (McGill-Queen's UP, 2012)
Schafer, Joseph. The social history of American agriculture (Da Capo, 1970 [1936])
Schlebecker John T. Whereby we thrive: A history of American farming, 1607–1972 (Iowa State UP, 1972)
Weeden, William Babcock. Economic and Social History of New England, 1620–1789 (Houghton, Mifflin, 1891)
External links
"The Core Historical Literature of Agriculture" from Cornell University Library |
environmental justice and coal mining in appalachia | Environmental justice and coal mining in Appalachia is the study of environmental justice – the interdisciplinary body of social science literature studying theories of the environment and justice; environmental laws, policies, and their implementations and enforcement; development and sustainability; and political ecology – in relation to coal mining in Appalachia.
The Appalachian region of the Southeastern United States is a leading producer of coal in the country. Research shows that residents who live near mountaintop removal (MTR) mines have higher mortality rates than average, and are more likely to live in poverty and be exposed to harmful environmental conditions than people in otherwise comparable parts of the region.In the late 1990s, several Appalachian women, including Julia Bonds, began to speak out against MTR and its effects on the people and environment of mining communities. Research has shown that MTR is causing "irreparable" environmental damage in Appalachia. The blasting of mountaintops has polluted stream and water supplies have been contaminated by toxic waste from coal processing called slurry ponds. Scientists have noted an increase in respiratory and heart problems among area residents, including lung cancer. Mortality rates and birth defect rates are higher in the areas surrounding surface mining locations.Coal mining production in Appalachia declined from 1990 to 2015, but there is some debate over why. Cited factors include a rising demand for clean energy, environmental policies and regulations set forth by the Environmental Protection Agency (EPA), and globalization. The number of coal mining jobs in the region remained steady from 2000 to 2010, but declined by 37% between 2011 and 2015. Less production is responsible for much of this job loss, but improved mining techniques like mountain-top removal also contributed. Discourse around coal in the area has sparked a debate in academia over whether it creates wealth or poverty. The core debate centers around coal production's impact on local and national economy.
Background
Coal production
Appalachia is one of three coal-mining regions in the United States; the others are the Interior coal region, and the Western coal region, which includes the Powder River Basin. Eight states lie in the Appalachian coal region: Alabama, eastern Kentucky, Maryland, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. West Virginia is the largest coal-producing state in Appalachia, and the second-largest coal-producing state in the United States, accounting for about 11% of the nation's total coal production in 2014 (the largest coal-producing state is Wyoming, which lies in the Western coal region and accounts for 40% of U.S. coal production). Two other states in the Appalachian coal region, Kentucky and Pennsylvania, account for 8% and 6% of U.S. coal production, respectively.The coal industry in Appalachia has changed over time. According to U.S. Department of Energy's Energy Information Administration data, Central Appalachia—consisting of southern West Virginia, eastern Kentucky, western Virginia, and eastern Tennessee—made up almost 29% of U.S. coal production in the U.S. in 1990, but only about 13% by 2013. By contrast, coal production in Northern Appalachian has remained relatively stable, going from 16% in 1990 to 12.5% in 2013. As a result, "both regions account for nearly the same share of U.S. coal production" as of 2014.In the Appalachian coal region, 72% of coal produced came from underground mines. This is a much higher percentage than in the Western coal region, where 90% of all coal produced comes from surface mines.
History
Historically, "the building of coal towns began in the 1880s, peaked in the 1920s, and virtually ended with the coming of the Great Depression" when the availability of other forms of energy—namely, oil, gas, and hydroelectricity—reduced demand for coal. The company town was particularly dominant in southern Appalachia; in 1925, almost 80% of West Virginia coal miners lived in company towns, while an average of 64.4% of coal miners in Maryland, Virginia, Kentucky, and Tennessee lived in company towns.
Impacts of coal mining in Appalachia
Since 1995, the Appalachian region has produced about half of the United States' coal. Although Appalachia has played a large role in contributing to the coal supply of the United States, the communities surrounding such mining practices have suffered immensely. Several studies have shown disparities between mining communities and non-mining communities in terms of public health, environmental degradation, pollution, and overall quality of life in Appalachia. Variations of surface coal mining techniques in the Appalachia include contour, area, high-wall, auger, and mountaintop removal mining (MTR).
Surface mining
The damage caused by mountaintop removal strip mining has had a calculable effect on the environment and communities in Appalachia. The resource rich region remains economically deprived and suffers from the externalities of coal mining, including the health problems caused by coal pollution. The Office of Surface Mining (OSM) is the federal agency tasked with regulating strip-mining under the Federal Surface Mining Control and Reclamation Act (SMCRA). According to OSM, "[t]o the extent that low income populations are prevalent in the coalfields, the impacts of mountaintop mining are felt disproportionately by these environmental justice populations".Most local residents are unable to see the extent of the damage that has been caused by surface mining. Geologist Sean P. Bemis investigated claims by local residents that the extent of the damage was not easily visible. In interviews with the research team, former miner Chuck Nelson stated that the extent of the destruction is only clearly visible from a plane. Coalfield resident activist Maria Gunnoe gave a similar account to the researchers, saying "I never realized it was so bad. My first fly-over with South Wings [non-profit aviation organization], and that right there is what really fired me up. When I got off the plane that day, I cried all the way across the tarmac, all the way home ..." The Government Accountability Office (GAO) confirmed this in a 2009 report:
Despite the public scrutiny that surface mining in mountainous areas has received, the public is limited in its ability to access information on the scope of these operations - their size, location, and how long they have been in operation - and on what the mountain can be expected to look like after mining operations have ceased and the land has been reclaimed
There are no official records of the total number of "disturbed acres" that have resulted from surface mining, but geospatial analysis has shown that between 1.05million and 1.28million acres of land and more than 500 mountains in West Virginia, Kentucky, Tennessee, and Virginia have been surface mined.
Mountaintop removal
One form of surface mining is mountaintop removal (MTR). This technique may remove up to 800 to 1000 feet of mountaintops, to reach coal seams not accessible by other surface mining techniques. This practice was used on a small scale in the 1970s and became heavily used in the 1990s. This extraction technique became popular because the increased demand for high-grade low-sulfur coal, due to the Clean Air Act amendments passed in 1990. The process of MTR begins by the deforestation of a chosen mountaintop, then it is blasted with explosives. Next all of the excess soil and rock or "spoil" is moved out, after the mining operation is complete this will be replaced. Once this rock has been disturbed in this process, swelling will take place. The spoil will expand by fifteen to twenty five percent, due to air incorporation and voids. This excess spoil or "overburden" then is dumped into nearby streams or valleys, this process is called a valley fill. Since the boom in MTR usage as many as 500 mountaintops have been destroyed and 2000 miles of waterways have been filled. Mountaintop mining and valley fills can lead to large scale landscape changes. These may include: fragmentation of forests, conversion of habitats, and loss of large tracts and forested areas. There also may be adverse effects to the people living in these Appalachian mining communities Michael Hendryx a researcher at Indiana State University, in an interview with Yale, stated that “The number of excess deaths every year comes to about 1,200 people who live in these mining communities compared to other parts of Appalachia.” The diseases most prevalent in these MTR areas include: cardiovascular disease, lung cancer, and COPD. These are not only the occupational illnesses of miners but of the general public. Birth defects especially heart defects risk goes up by 181% in MTR areas. Researchers are beginning to research smaller particulate matter as the cause of these illnesses, and increased mortality.
Effects on health
Several studies have found that communities within the Appalachian region surrounding coal mining practices disproportionately experience negative health effects than communities with no coal mining. Such health disparities are largely attributed to the contamination of water and land associated with coal surface mining. MTR has increased salinity, metals, magnesium, and sulfates within Appalachian watersheds, threatening human health. Sixty-three percent of stream beds near coalfields within the Appalachia mountains have been identified as "impaired" due to high toxic chemical and metal contamination. In West Virginia, 14 counties are experiencing water that exceeds safe drinking water standards by seven times more than non-mining counties. Combustion waste and fly ash from MTR lend to toxic dusts pollute the surrounding air and have contributed to increased levels of cancer, cardiovascular disease, liver disease, and kidney disease. Public health costs of pollution in the Appalachia are upwards of 75 billion dollars a year. In a comparative analysis of health-related quality of residences in counties with and without coal mining Appalachia "reported significantly fewer healthy days for both physical and mental health". The same study highlights strong correlations between heavy coal mining counties and a greater risk of depression and severe psychological distress. Areas in the Appalachia with coal surface mining exhibit greater rates of adverse health effects and reduced self-rated health in comparison to the national average. In addition, studies from the National Institute for Occupational Safety and Health have concluded a high "relationship between surface coal mining jobs and the prevalence of pneumoconiosis". Lastly, through examination of mortality rates, county-level poverty rates, and coal mining within counties of the Appalachia, it was identified that coal mining areas of Appalachia experienced higher mortality rates then counties with no coal mining. The coal mining industry has had many lasting health effects not only on the workers in the industry but also on the people who live close to the mines. People that are exposed to the particles released from coal mining experience illnesses such as rheumatoid arthritis and pneumoconiosis.
Rheumatoid arthritis (RA): This disease is both an autoimmune and an inflammatory disease. The disease causes the human immune system to attack healthy cells in the body because it believes that they are a threat. This is what causes inflammation, which is usually found in the joints. The longer rheumatoid arthritis exists in the joint the greater the chance for damage to joint tissue becomes. (CDC, 2022). One of the exposures that coal miners face that leads to this disease is silica. A study done by Schmajuk et al. found that between their study in 2017 and their study in 2019, 56% of their participants were diagnosed with any form of arthritis. 20% of participants had developed rheumatoid arthritis. Within their discussion section it was stated that "coal mining work and occupational silica exposure are both associated with threefold odds of RA…"
Pneumoconiosis: This disease has three different subtypes which are asbestosis, silicosis and coal workers’ pneumoconiosis (also known as black lung). The American Lung Association (ALA) notes that black lung disease is caused by the inhalation of coal dust over long periods of time, once the coal particles are in the lungs your body will try to remove them from the lungs. Overtime inflammation occurs and once it is severe enough scar tissue can form on the lungs. However black lung disease is not the only form of pneumoconiosis that coal workers are exposed to. They also often face exposure to silica dust because of the drilling process. Research conducted by Blackley, et al. found that a great portion of pneumoconiosis found in the United States is located within central Appalachia. In their discussion section they stated, "One in 5 if these miners in central Appalachia have CWP (coal workers’ pneumoconiosis), a significant predictor for developing PMF (progressive massive fibrosis). Approximately 1 in 20 long-tenured miners in central Appalachia has CWP that has progressed to PMF, a condition that is by definition totally disabling."
Environmental impacts
Coal surface mining has heavily altered the hydrological cycle and landscape of the Appalachia causing environmental degradation and contributing to ecosystem damages beyond repair. Surface coal mining in the Appalachian has contributed to the destruction of over 500 mountain tops. In addition, it has led to the clearance of over 1 million acres of forests and contributed to the degradation or permanent loss of over 12000 miles of streams crucial to the Appalachia watershed from 1985- 2001. Mountaintop removal has caused the native Appalachian forests to shift into grasslands/shrubland ecosystems. Pericak et al. in their research noticed that this practice has, “lowered the local topographic complexity, lowered the average slope by nearly 10°, and created novel plateau-like landscapes.” Increased salinity and metal contamination of the Appalachian streams have led to toxic effects of fish and bird species. Although there are actions taken to neutralize sulfuric acid in the waste created by mountaintop removal, other forms of mining drainage do occur. Pericak et al. stated, “The net weathering reactions generate alkaline mine drainage which is characterized by elevated ion concentrations of sulfate (SO42-), calcium (Ca2+), magnesium (Mg2+), bicarbonate (HCO3-), and a suite of other elements including major aquatic pollutants like selenium (Se)”. Mountaintop removal, or MTR, is a type of surface mining that has played a major role in negatively impacting the Appalachian environment. When MTR is used, it causes much of the contaminants from the process to be emptied into surrounding valleys which, oftentimes, make their way into nearby streams. These wastes are disposed in "valley fills" which have collapsed and produced heavy flash floods in Appalachia. The Environmental Protection Agency approximates that between 1985 and 2001, over 700 miles worth of streams in the Appalachians were covered by these "valley fills" due to mountaintop removal coal mining. The practice of mountaintop removal itself causes harm to the environment, however there are other hidden polluting factors within the process. One of these is the transportation of the coal to the plants that it will be refined in. Operation of large transportation vehicles use fossil fuels as a gas source which releases CO2 into the air. At the same time, the transportation of the coal further spreads the particulate matter from the mining process into nearby towns. Anejia et al. found that, “...coal trucks frequently travel through communities located in steeply sided valleys, or hollows, where homes are situated very close to the narrow roads. Some communities experience up to hundreds of truck trips a day. Coal trucks emit dust directly from their tires, bodies, and beds.”
Social and economic impacts
Appalachia has historically been one of the most impoverished regions of the country.There is a debate about whether coal production is a source of wealth or poverty in Appalachia. The U.S. geological survey and the U.S. bureau of mines states that there is a coal-wealth paradox in Appalachia. Appalachia is home to some of the largest coal mines yet the average per capita income is only about 68% of the national per capita income. However, work done by Black and Sanders shows that between 1970 and 1980 the increase in coal production substantially boosted the pay of low skilled workers in Appalachia and likely caused a decrease in income inequality.Although coal mining industries are often associated with increased jobs and economic growth, this association does not hold for Appalachia, where two-thirds of the counties have higher levels of unemployment than the nation and per capita personal wages falling 20% lower than the nation. More specifically, in Hendryx and Zullig's comparative analysis of Appalachia counties, those with coal mining had greater economic disparities and more poverty than those without industry. The shift towards coal surface mining from underground mining led to a 50% decline in mining jobs from 1985 to 2005, and competition from cheap natural gas also decreased demand for coal, leading some mines to close or reduce extraction, which further increased unemployment. During the 1990s coal mining and other extractive businesses took a sharp decline in Appalachia. This caused the economy to take a sharp decline and many people found themselves without jobs and it caused widespread poverty. Furthermore, those who had worked in the mining industry found that their bodies were left damaged and in constant pain. The grueling work that these people did left them looking for relief from the pain and many people of Appalachia turned to opioids. From 2014 to 2015, overall mining employment for Appalachia has dropped by 15.9%. With the decrease in economic opportunities for the people of Appalachia came despair that left many hopeless for their future. This causes diseases of despair such as alcohol and drug overdose (both prescription and illegal), suicide, and alcoholic liver disease. (Marberry & Werner, 2020). Furthermore, it is believed that diseases of despair may be connected to solastagia. Solastagia is a, “psychoterratic illness, which is ‘defined as earth-related mental illness where people’s mental wellbeing … is threatened by the severing of ‘healthy’ links between themselves and their home/territory.’” A NASA study states that promises of beneficial post-mining development in the Appalachian region have yet to materialize. A 2017 study found that neighborhoods closest to coal impoundments are "slightly more likely to have higher rates of poverty and unemployment, even after controlling for rurality, mining-related variables, and spatial dependence".
Specific events
Buffalo Creek Disaster
In 1972, a slurry pond built by Pittson Coal Company collapsed. In what is known as the Buffalo Creek disaster 130 million gallons of sludge flooded Buffalo Creek. More recently, a waste impoundment owned by Massey burst in Kentucky, flooding nearby streams with 250 tons of coal slurry.
Upper Big Branch disaster
On April 5, 2010, there was an explosion at the Upper Big Branch mine in Raleigh County, West Virginia, owned by Massey Energy. The explosion took the life of 29 miners and is labeled the worst accident in the United States since 1970. In 2015 professor Nicole Fabricant wrote, "Because Massey Energy cut corners on safety regulations—in this case, failing to provide appropriate ventilation for methane—the company essentially created the tragedy of Upper Big Branch. The Mine Safety and Health Administration found that flagrant safety violations contributed to a coal dust explosion. It issued 369 citations in 2011, assessing $10.8 million in penalties."
Marsh Fork Elementary School Protests
During the time that this school was in operation the citizens began to have major concerns about how close coal mining operations were to the school. Fabricant stated that, “The school sits next to a coal silo and just 400 feet downslope from an impoundment that holds back billions of gallons of coal slurry.” Along with that residents were worried about air quality and the possibility for particulate matter to linger in the air near the school. After large protests from the community the children were moved to another school for their safety.
Farmington Mine disaster
The explosion of the Consol No. 9 mine near Farmington, West Virginia happened on November 20, 1968. This disaster took the lives of 78 men who were never recovered from the mine. The factors contributed to this disaster were stated as, "They did not want to comply with the Federal Coal Mine Health and Safety Act... And because of the lack of due diligence, that’s what happened at No. 9 that caused it to blow up." After a few years the mine went to re-open and Larry Layne was charged with figuring out what happened. While on the site Larry ran into an electrician to whom he asked about the Mod's Run fan, why it wasn't working and why nobody knew that it was down. Larry found out that the alarm for this ventilation fan was disabled. When Larry asked why the electrician responded with, "The chief electrician said that the fan kept going down, and they were having trouble with it. And every time the fan went down, they didn’t want to take the men out of the mine".
Law and regulation
The Black Lung Benefits Act of 1972 provided payments to coal miners disabled from Coalworker's pneumoconiosis or "black lung disease" and their dependent survivors.
The 1977 Surface Mining Control and Reclamation Act (SMCRA) created two programs: one for regulating active coal mines and a second for reclaiming abandoned mine lands.
In the view of Jedediah Purdy, The Clean Air Act and the Clean Water Act improved the quality of air and water for much of America, but created "sacrificial zones" in America, including coal mining communities in Appalachia, that hid the environmental effects of industry and agriculture from people in suburbs but increased exposure to danger for people who lived near sites of pollution.: 182 These laws, along with the National Environmental Policy Act form the basis in law for regulation of coal mining, including mountaintop removal mining.
Regulations issued on the basis of these laws focus on issuing or withholding permits for new mining operations; the regulations themselves have been contested.
As of 2012, these laws did not take into account direct effects on communities near mines nor economic or racial disparities in those communities, and regulations and executive orders issued that attempted to address such environmental justice concerns had been struck down, and legal challenges based on potential effects on local communities generally failed, since neither the law nor regulations were written to address these concerns and judges ruled based on what the law and regulations actually said.The Affordable Care Act is a federal government health care law; it includes provisions that amend the Black Lung Benefits program. The Black Lung Benefits program details the extent to which coal miners have their medical coverage compensated by the federal government. The ACA provisions that amend the Black Lung Benefits program are commonly known as the Byrd Amendments taking its name from the late West Virginia Congressman Robert Byrd. The Byrd Amendments are found in Section 1556 of the ACA. Among the many protections the Byrd Amendments provides coal miners, it covers medical expenses for coal miners who worked at least 15 years underground (or comparable surface mining) and who have a totally disabling respiratory impairment. Further, it shifts the burden of proof of disability due to "black lung disease" from these coal miners back to the coal companies. Coalworker's pneumoconiosis or "black lung disease" can be a common health problem faced by retired coal miners.
The Surface Mining Control and Reclamation Act of 1977
Early attempts to regulate strip-mining on the state level were largely unsuccessful due to lax enforcement. The Appalachian Group to Save the Land and the People was founded in 1965 to stop surface mining. In 1968, Congress held the first hearings on strip mining. Ken Hechler introduced the first strip-mining abolition bill in Congress in 1971. Though this bill was not passed, provisions establishing a process to reclaim abandoned strip mines and allowing citizens to sue regulatory agencies became parts of SMCRA.SMCRA also created the Office of Surface Mining, an agency within the Department of the Interior, to promulgate regulations, to fund state regulatory and reclamation efforts, and to ensure consistency among state regulatory programs.
Regulation procedures and updates to coal supply chains
In response to commentary conducted by the Environmental Protection Agency (EPA), the American Coal Council(ACC) confirms that coal supply chains are under heavy regulation by local, state, and federal levels. Betsy Monseu, CEO of ACC, stated, “Changes to regulations, inconsistencies in regulations, and regulatory uncertainty affect businesses large and small. There are real consequences to people, their livelihoods, and their families.” Although the environmental impacts caused by coal mining are increasing, the EPA has begun to see the benefits of coal ash. In 2020, the EPA stated, “Coal ash can be beneficially used to make new products, such as wallboard or concrete. Due to the many potentially useful properties of coal ash, a vast array of businesses from construction to agriculture and manufacturing choose coal ash as a substitute for other materials”. The ACC has been urging the EPA to consider using coal combustion residuals(CCR), which have been labelled as environmentally beneficial, by the ACC. Although the EPA has researched and ruled CCR as a beneficial alternative, no action has been taken. In order for CCR to be recognized as an appropriate solution, the EPA must evaluate coal combustion residuals with four criteria: (1) The CCR must provide a functional benefit; (2) The CCR must substitute for the use of a virgin material, conserving natural resources that would otherwise need to be obtained through practices such as extraction; (3) The use of the CCRs must meet relevant product specifications, regulatory standards, or design standards, when available, and where such specifications or standards have not been established, CCR may not be used in excess quantities; and (4) When un-encapsulated use of CCR involves placement on the land of 12,400 tons or more in non-roadway applications, the user must demonstrate and keep records, and provide such documentation upon request, that environmental releases to groundwater, surface water, soil, and air are comparable to or lower than those from analogous products made without CCR, or that environmental releases to groundwater, surface water, soil, and air will be at or below relevant regulatory and health-based benchmarks for human and ecological receptors during use.
Governmental influence on environmental movements
In 1967, Louie B. Nunn was elected governor. He was a member of the Republican party and was elected as part of a national effort to respond to Johnson's Great Society legislation. This legislation was aimed to promote civil rights and help social movements have a safety net as they protested. In the work, “To Live Here, You Have to Fight: How Women Led Appalachian Movements for Social Justice” author Jessica Wilkerson stated, “...Nunn vowed to use his power to bring an end to the Appalachian Volunteers in Kentucky…” Legislation that was passed by congress allowed governors to decide the requirements that made an organization a community action agency which was an important status to have to qualify for governmental funding.
Advocacy groups
The study of justice has often been defined by the theories of John Rawls. Justice theory has focused on the principles by the which to distribute goods in a society. The defining arguments of the environmental justice movement were about patterns that violated some of these distributive principles of justice theory. Several contemporary scholars have developed theories of justice that are broader then the distributional theory of justice.The study of justice theory, as applied to the environmental justice, has primarily focused on "maldistribution". In other words, this area of study has concentrated on the fact that poor communities, indigenous communities and communities of color are often disproportionately impacted by environmentally-related negative externalities and receive less environmental protection.Environmental justice has been identified by scholars as a movement that acknowledged the disproportionate effects of environmental damage and toxic contamination on the poor and people of color. It has also been noted that the race and class of the parties effects the community's chances of success in enacting reforms. Environmental justice groups were community grassroots organizations that combined environmentalism with issues of race a class equality. These groups organized in opposition to the disproportionate threat mountain communities faced from health hazards like acid mine drainage.
Save Our Cumberland Mountains
Save Our Cumberland Mountains (SOCM, pronounced "sock 'em") was founded when thirteen residents of the Tennessee coalfields petitioned their state government to make coal landholders pay a fair share of taxes. SOCM later grew into one of the most significant community organizations in the region and went on to lead a major legislative campaign against employers who replaced their permanent employees with long-term temporary workers.J.W. Bradley was the president of SOCM for its first five years. He had worked in the deep mines and was outspoken about what he called the "evils of strip mining." He believed in using litigation to pursue reform. In 1974, SOCM established the East Tennessee Research Corporation as a public interest law firm. By 1976, SOCM was trying to ban strip mining and targeting individual strip mining operations.An attorney who worked with SOCM in the 1970s has written that very few people of color were involved with SOCM in the early years. He highlights the importance of regional organizations like the Highlander Research and Education Center that "seek to bring together diverse communities to share their knowledge about the inner dynamics of environmental justice issues".
Mountain Justice
Mountain Justice began in 2005 as a summer-long campaign for the abolition of MTM. The organization was started after a 2004 mining accident in Virginia. A three-year-old was killed when a boulder rolled off a MTM site above his home. The first MJ meeting took place in Knoxville, Tennessee and included activists from Coal River Mountain Watch (CRMW), the Sierra Club, Appalachian Voices, and Katuah Earth First (KEF!). Their mission statement includes a commitment to non-violence.
Keepers of the Mountain
Keepers of the Mountain was founded by Larry Gibson and Bill DePaulo in July 2004. Larry was inspired to create an organization that protested against mountaintop removal after he learned that it was that because of his childhood home shaking in the mid-1990s. Although this organization has its roots in the mountains it partakes in other works of social and environmental justice. Such projects include bringing clean water to O’Toole, WV. and The Dandelion Project (aimed at creating sustainable energy alternatives in low-income or underserved communities).
See also
Appalachian music
Environmental issues in Appalachia
Hobet Coal Mine
History of coal mining in the United States
RECLAIM Act
Social and economic stratification in Appalachia
Stream Protection Rule
== References == |
environmental impact of development in the sundarbans | Environmental impact of development in the Sundarbans, is the study of environmental impact on Sundarban, the largest single tract mangrove forest. It consist of a geographical area of 9,629 square kilometres (3,718 sq mi), including 4,185 square kilometres (1,616 sq mi) of reserve forest land, and is a natural region located partly in southern Bangladesh and partly in the Indian state of West Bengal. It is ecologically a southern part of the Gangetic delta between the Hooghly river in India on the west and the Meghna river in Bangladesh on the east and is bounded by the Ganga-Padma, the Padma-Meghna on the north and by the Bay of Bengal on the south. The area that is not reserve forest land is inhabited by human settlements with a total population around 4 million (2003).
Background
The Sundarbans is also a UNESCO World Heritage Site. The area covered by mangroves has fallen over the years due to anthropocentric development but is now protected by various legal mandates. The forest is renowned for its wide variety of wildlife, especially the critically threatened Royal Bengal Tiger. Besides providing a number of ecosystem services, the Sundarbans also contributes to the socio-economic development of the neighboring communities and the country. However, recent developments in the area has been found detrimental to its ecological balance by some parties.
Ecological value of the Sundarbans
The Sundarbans is the largest single block of tidal halophytic mangrove forest in the world. It is intersected by a complex network of tidal waterways, mudflats, and small islands of salt-tolerant mangrove forests. A variety of habitats have developed to accommodate the wildlife, including beaches, estuaries, permanent and semi-permanent swamps, tidal flats, tidal creeks, coastal dunes, back dunes and levees. Besides a high number of mangrove tree species, 200 additional plant species, more than 400 species of fish, over 300 species of birds, 35 species of reptiles, 42 species of mammals and countless benthic invertebrates, bacteria, fungi, etc., can be found there. Some of the notable wildlife species residing in the forest include water fowl, heron, pelican, spotted deer, rhesus macaques, wild boar, tigers, water monitor lizards, fishing cats, otters, olive ridley turtles, crocodiles, batagur terrapins, and migratory birds.The Sundarbans also provide a vital buffer against cyclones that are common in that part of the world and has been called "a natural safeguard...for nearly 40 million people".
Historical overview of Sundarban's development
The Sundarbans were very sparsely populated until the 19th century. There is evidence of only scattered human settlements dating back to the 8th century. The 19th century saw the start of permanent human habitation being established in the area, through the clearing of the forest in low-lying tracts and the construction of circuit embankments. This is likely to have been instigated in 1771 by the plan of a British collector general to divide the Sundarbans into plots and to lease them out to prospective landlords for timber extraction and the collection of revenues. The landlords brought in poor farming communities from parts of Bengal as well as neighboring states to clear the forest and start developing the land. In the timespan of a hundred years after the plan was initiated, the northern border of the mangrove forest shifted by about 10–20 km to the southeast. By 1876, the British government declared all mangrove areas that had not yet been leased, as under protection and conservation. However, more so than regulations, it is suspected that economic reasons such as the high cost of land conversion due to the tidal and saline environment as well as the presence of the Royal Bengal Tiger, are the main reasons for preventing the destruction of the mangroves. The clear demarcation of forest boundaries along rivers and the Bay of Bengal is also credited for the protection of the forest.Despite these regulations, between 1873 and 1968, the mangrove-covered area of the forest decreased by about half because of conversion of forest to agricultural land and settlements. This can be attributed to mass migration to the Sundarbans after the end of colonial rule and the creation of India and Pakistan as two separate states. It resulted in the mangrove forest boundary shifting further to the south and area between the Hooghly River and the Matla River being cleared. However, after Bangladesh was formed in 1971, and various wildlife and forest protection legislations were established by the country in 1972, the Sundarban mangroves have been protected by legal measures primarily established to protect and help increase the threatened tiger population. As a result, despite the growing population density in the years since then, the total area covered by mangroves has remained fairly stable since the 1960s.
Culture and livelihood of Sundarban residents
Entire communities in the Sundarbans depend directly on the forest and its waterways for their livelihood, from fisheries to honey production. Almost 85 percent of the people living in Sundarban are dependent on agriculture. Socioeconomic status is heavily determined by possession of land. There is also a socio-economic divide in the fisherman community, due to only some of the fishermen owning boats and being able to obtain official fishing licenses.The lives of Sundarban residents are frequently affected by human-animal conflicts; a few tiger and crocodile attacks every year are common. In 2008, six people are known to have been killed by tigers inside the Sundarban Tiger Reserve. Because of issues such as deaths and injuries due to human-animal conflict, over-fishing, and deforestation, the state imposed several restrictions on livelihood strategies. The state forest department have tried to reduce the local people's dependency on the forest for their livelihood by taking on infrastructure development projects such as building roads and jetties, excavating irrigation channels and ponds, providing solar lamps and establishing a few medical facilities. Studies have shown that majority of population understand and support the conservation of mangroves and it ecosystems. However, perceived socio-demographic factors such as severe poverty, lack of political commitment, and absence of community level institutions are often barriers to the successful implementation of conservation policies.In terms of transport and communications, Sundarban is still a recognized backwards area. Current number and quality of infrastructure facilities like agro-service centres, fishing harbors, boat building facilities, ice plants or cold storages, are inadequate to meet the requirements of developmental activities.
Recent threats to the environment
The Sundarbans is very vulnerable to a variety of anthropogenic activity, including intensive boating and fishing, dredging, tourism and port activities, operation of mechanized boats, excavation of sand from the riverbed, and the establishment of coal power plants. There are a number of endangered species in the Sundarbans, including two river dolphins and an endemic bird, the masked finfoot, which are even more at risk because of these environmental threats. The current threats to the ecosystem could also affect the dwindling number of Royal Bengal Tigers in Bangladesh's side of the forest.
Tourism
The tourism industry has become very successful in the Sundarbans, with annual visitation increasing from around 50,000 in 2002 to around 117,000 in 2010. One of the main attractions for tourists is the Royal Bengal Tiger, which is widely used in advertising. Although the growing tourism business benefits the local economy, it has proven detrimental to the natural environment of the Sundarbans due to habitat destruction for hotel construction, pollution by garbage disposal, poor sanitation, and noise caused by mechanized boats. Uncontrolled tourism is likely to lead to more boardwalk construction and erosion of peat banks, which will result in changes in substrate structure, seedling distribution, faunal diversity, and species composition.
Safer alternatives
In order to reduce the harmful effects the current tourism industry has on the environment, eco-tourism is being encouraged in the Sundarbans. One of the benefits of eco-tourism is that is a pro-poor industry, i.e. the poor is one of its targeted beneficiaries. Due to Sundarban's residents' high dependency on the forest, an effective conservation strategy needs to provide the residents with income generation opportunities linked to forest protection. Eco-tourism is seen as both environmentally sustainable and economy boosting.
Power plants
One of the main threats to the Sundarbans currently are the two coal-fired power plants, proposed to be built within a few miles of the forest. One is a 630-megawatt plant called the Orion power plant, planned by the Orion Group. The Orion power plant proposal is preceded by the proposed Rampal power plant, a 1,320 megawatt project. The Rampal power plant is the product of a joint-venture called the Bangladesh-India Friendship Power Co. Ltd, a partnership between India's state-owned National Thermal Power Corp. and the Bangladesh Power Development Board. It will be Bangladesh's largest power plant and is expected to be built on over 1834 acres of land, 14 km from the Sundarbans.The Rampal power plant is the most concerning and has received a lot of media attention. There is fear of the power plants altering the critical water balance in the Sundarban region, polluting the surrounding water and air, and increasing the risk of oil and coal spills. The Rampal project is in violation of the environmental impact assessment guidelines for coal-based thermal power plants. One of the 50 preconditions set by the Department of Energy of Bangladesh for such projects is that they must be outside a 25 km radius from the borders of an ecologically sensitive area, and this project clearly violates the condition. An UNESCO fact finding mission report concluded that the power station posed "a serious threat to the site".
Arguments made by environmental groups
The proposal states the plant will draw its water from the Passur River, taking up to 219, 600 cubic metres of water every day. Activists worry about the effect on local water supplies as that means the plant will discharge treated waste water back into the river. They argue that the pollutants introduced into the water supply can harm the mangroves, the marine animals living there, and nearby human communities who use the water body for fishing and agriculture. Environmentalists are also fearful of the increased chances of a catastrophic oil spill. There is historical evidence of the damage that can cause in the Sundarbans. In 2014, when an oil tanker spilled 75,000 gallons into the fragile ecosystem, locals communities had no tools or assistance from the government to fight the toxic spill with.In 2013, a long march, with 20,000 protesters, failed to persuade the government to end the project. Another long march took place for the same purpose on March 10, 2016. Anu Muhammad, one of the head march organizers, claims "No sensible person will deny that there are many alternative ways for electricity generation. But there is no alternative for the Sundarbans."
Arguments made by government
The Bangladesh government has so far denied any potential detrimental effects on the Sundarbans due to the power plants. Ujjwal Bhattacharya, managing director of the Bangladesh-India Power Company, is quoted as saying "This project will usher in economic prosperity in the Rampal area ... which will reduce dependency of the local population on the Sundarbans. This will rather help the government ... to save the Sundarbans." The Bangladesh Prime Minister's energy advisor said that the controversy over the power plant and its impact on the Sundarbans was "not based on facts". The government also asserted that they will be importing high quality coal, building a 275-metre-high (902 ft) chimney and employing state of the art technology among other steps to minimize impact on the Sundarbans. The Prime Minister's principal secretary has compared the Rampal power plant to the Barapukuria power station, saying that the Rampal plant will be using much more modern and environmentally friendly technology, even though the inferior Barapukuria power plant is not affecting the environment despite being located in a crowded area.
See also
Rampal Power Station (Proposed)
Sundarbans
Sundarban National Park
Sundarban Tiger Project
== References == |
green economy | A green economy is an economy that aims at reducing environmental risks and ecological scarcities, and that aims for sustainable development without degrading the environment. It is closely related with ecological economics, but has a more politically applied focus. The 2011 UNEP Green Economy Report argues "that to be green, an economy must not only be efficient, but also fair. Fairness implies recognizing global and country level equity dimensions, particularly in assuring a Just Transition to an economy that is low-carbon, resource efficient, and socially inclusive."A feature distinguishing it from prior economic regimes is the direct valuation of natural capital and ecological services as having economic value (see The Economics of Ecosystems and Biodiversity and Bank of Natural Capital) and a full cost accounting regime in which costs externalized onto society via ecosystems are reliably traced back to, and accounted for as liabilities of, the entity that does the harm or neglects an asset.Green sticker and ecolabel practices have emerged as consumer facing indicators of friendliness to the environment and sustainable development. Many industries are starting to adopt these standards as a way to promote their greening practices in a globalizing economy. Also known as sustainability standards, these standards are special rules that guarantee the products bought don’t hurt the environment and the people that make them. The number of these standards has grown recently and they can now help build a new, greener economy. They focus on economic sectors like forestry, farming, mining or fishing among others; concentrate on environmental factors like protecting water sources and biodiversity, or reducing greenhouse gas emissions; support social protections and workers’ rights; and home in on specific parts of production processes.
Green economists and economics
Green economics is loosely defined as any theory of economics by which an economy is considered to be component of the ecosystem in which it resides (after Lynn Margulis). A holistic approach to the subject is typical, such that economic ideas are commingled with any number of other subjects, depending on the particular theorist. Proponents of feminism, postmodernism, the environmental movement, peace movement, Green politics, green anarchism and anti-globalization movement have used the term to describe very different ideas, all external to mainstream economics.According to Büscher, the increasing liberalisation of politics since the 1990s has meant that biodiversity must 'legitimise itself' in economic terms. Many non-governmental organisations, governments, banks, companies and so forth have started to claim the right to Define and defend biodiversity and in a distinctly neoliberal manner that subjects the concept's social, political, and ecological dimensions to their value as determined by capitalist markets.Some economists view green economics as a branch or subfield of more established schools. For instance, it is regarded as classical economics where the traditional land is generalized to natural capital and has some attributes in common with labor and physical capital (since natural capital assets like rivers directly substitute for man-made ones such as canals). Or, it is viewed as Marxist economics with nature represented as a form of Lumpenproletariat, an exploited base of non-human workers providing surplus value to the human economy, or as a branch of neoclassical economics in which the price of life for developing vs. developed nations is held steady at a ratio reflecting a balance of power and that of non-human life is very low.An increasing commitment by the UNEP (and national governments such as the UK) to the ideas of natural capital and full cost accounting under the banner 'green economy' could blur distinctions between the schools and redefine them all as variations of "green economics". As of 2010 the Bretton Woods institutions (notably the World Bank and International Monetary Fund (via its "Green Fund" initiative) responsible for global monetary policy have stated a clear intention to move towards biodiversity valuation and a more official and universal biodiversity finance.Taking these into account targeting not less but radically zero emission and waste is what is promoted by the Zero Emissions Research and Initiatives. The UNEP 2011 Green Economy Report informs that "based on existing studies, the annual financing demand to green the global economy was estimated to be in the range US$1.05 to US$2.59 trillion. To place this demand in perspective, it is about one-tenth of total global investment per year, as measured by global Gross Capital Formation."At COP26, the European Investment Bank announced a set of just transition common principles agreed upon with multilateral development banks, which also align with the Paris Agreement. The principles refer to focusing financing on the transition to net zero carbon economies, while keeping socioeconomic effects in mind, along with policy engagement and plans for inclusion and gender equality, all aiming to deliver long-term economic transformation.The African Development Bank, Asian Development Bank, Islamic Development Bank, Council of Europe Development Bank, Asian Infrastructure Investment Bank, European Bank for Reconstruction and Development, New Development Bank, and Inter-American Development Bank are among the multilateral development banks that have vowed to uphold the principles of climate change mitigation and a Just Transition. The World Bank Group also contributed.
Definition
Karl Burkart defined a green economy as based on six main sectors:
Renewable energy
Green buildings
Sustainable transport
Water management
Waste management
Land managementThe International Chamber of Commerce (ICC) representing global business defines green economy as "an economy in which economic growth and environmental responsibility work together in a mutually reinforcing fashion while supporting progress on social development".In 2012, the ICC published the Green Economy Roadmap, containing contributions from international experts consulted bi-yearly. The Roadmap represents a comprehensive and multidisciplinary effort to clarify and frame the concept of "green economy". It highlights the role of business in bringing solutions to global challenges. It sets out the following 10 conditions which relate to business/intra-industry and collaborative action for a transition towards a green economy:
Open and competitive markets
Metrics, accounting, and reporting
Finance and investment
Awareness
Life cycle approach
Resource efficiency and decoupling
Employment
Education and skills
Governance and partnership
Integrated policy and decision-making
Finance and investing
Sino-European Cooperation
Sino-European Cooperation in the Green Economy provides a comprehensive overview of the challenges and promising opportunities in the realm of green economic development and collaboration between China and Europe. Philippe Mariani, CEO of Sophia Antipolis Foundation at Sophia Antipolis Science & Technology Park, France, underscores the significance of this cooperation in the report's foreword.Mariani asserts that investing in innovative clean technologies is imperative for the global shift toward achieving net-zero objectives. He emphasizes that without advancements in eco-innovation, addressing major environmental challenges becomes both arduous and costly. The facilitation and acceleration of innovation, according to Mariani, play a pivotal role in fostering an effective medium to long-term mutual response to climate change, potentially leading to novel initiatives for climate and sustainability opportunities.Highlighting the urgency of our times, Mariani stresses our collective responsibility to engage in multi-lateral initiatives that promote cooperation for the sake of future generations. He expresses a strong belief that innovative partnerships between Europe and China can serve as catalysts for new models of sustainable growth.Shi Yong, counsellor of China's State Council and member of the International Eurasian Academy of Sciences, echoes this sentiment, stating, "Future in-depth exchanges and practical cooperation on the environment and climate, green energy, and green finance will further invigorate the comprehensive strategic partnership between China and Europe in the coming period." He anticipates that such collaboration will not only offer solutions for the economic transitions of other nations but also significantly contribute to the global promotion of sustainable development. The Sino-European cooperation in the green economy, according to Shi Yong, is a prospect that deserves global anticipation.
Green growth
Approximately 57% of businesses responding to a survey are investing in energy efficiency, 64% in reducing and recycling trash, and 32% in new, less polluting industries and technologies. Roughly 40% of businesses made investments in energy efficiency in 2021.
Ecological measurements
Measuring economic output and progress is done through the use of economic index indicators. Green indices emerged from the need to measure human ecological impact, efficiency sectors like transport, energy, buildings and tourism, as well as the investment flows targeted to areas like renewable energy and cleantech innovation.
2016 - 2022 Green Score City Index is an ongoing study measuring the anthropogenic impact human activity has on nature.
2010 - 2018 Global Green Economy Index™ (GGEI), published by consultancy Dual Citizen LLC is in its 6th edition. It measures the green economic performance and perceptions of it in 130 countries along four main dimensions of leadership & climate change, efficiency sectors, markets & investment and the environment.
2009 - 2013 Circles of Sustainability project scored 5 cities in 5 separate countries.
2009 - 2012 Green City Index A global study commissioned by SiemensEcological footprint measurements are a way to gauge anthropogenic impact and are another standard used by municipal governments.
Green energy issues
Green economies require a transition to green energy generation based on renewable energy to replace fossil fuels as well as energy conservation and efficient energy use. Renewables, like solar energy and wind energy, may eliminate the use of fossil fuels for electricity by 2035 and replace fossil fuel usage altogether by 2050.The market failure to respond to environmental protection and climate protection needs can be attributed to high external costs and high initial costs for research, development, and marketing of green energy sources and green products. The green economy may need government subsidies as market incentives to motivate firms to invest and produce green products and services. The German Renewable Energy Act, legislations of many other member states of the European Union and the American Recovery and Reinvestment Act of 2009, all provide such market incentives. However, other experts argue that green strategies can be highly profitable for corporations that understand the business case for sustainability and can market green products and services beyond the traditional green consumer.
In the United States, it seemed as though the nuclear industry was coming to an end by the mid-1990s. Until 2013, there had been no new nuclear power facilities built since 1977. One reason was due to the economic reliance on fossil fuel-based energy sources. Additionally, there was a public fear of nuclear energy due to the Three Mile Island accident and the Chernobyl disaster. The Bush administration passed the 2005 Energy Bill that granted the nuclear industry around 10 million dollars to encourage research and development efforts. With the increasing threat of climate change, nuclear energy has been highlighted as an option to work to decarbonize the atmosphere and reverse climate change. Nuclear power forces environmentalists and citizens around the world to weigh the pro and cons of using nuclear power as a renewable energy source. The controversial nature of nuclear power has the potential to split the green economy movement into two branches— anti-nuclear and pro-nuclear.
According to a European climate survey, 63% of EU residents, 59% of Britons, 50% of Americans and 60% of Chinese respondents are in favor of switching to renewable energy. As of 2021, 18% of Americans are in favor of natural gas as a source of energy. For Britons and EU citizens nuclear energy is a more popular energy alternative.After the COVID-19 pandemic, Eastern European and Central Asian businesses fall behind their Southern European counterparts in terms of the average quality of their green management practices, notably in terms of specified energy consumption and emissions objectives.External variables, such as consumer pressure and energy taxes, are more relevant than firm-level features, such as size and age, in influencing the quality of green management practices. Firms with less financial limitations and stronger green management practices are more likely to invest in a bigger variety of green initiatives. Energy efficiency investments are good to both the bottom line and the environment.The shift to greener energy and the adoption of more climate regulations are expected to have a 30% positive impact on businesses, mostly through new business prospects, and a 30% negative impact, according to businesses that took part in a survey in 2022. A little over 40% of the same businesses do not anticipate the transition to greener alternatives to alter their operations.
Criticism
A number of organisations and individuals have criticised aspects of the 'Green Economy', particularly the mainstream conceptions of it based on using price mechanisms to protect nature, arguing that this will extend corporate control into new areas from forestry to water. The research organisation ETC Group argues that the corporate emphasis on bio-economy "will spur even greater convergence of corporate power and unleash the most massive resource grab in more than 500 years." Venezuelan professor Edgardo Lander says that the UNEP's report, Towards a Green Economy, while well-intentioned "ignores the fact that the capacity of existing political systems to establish regulations and restrictions to the free operation of the markets – even when a large majority of the population call for them – is seriously limited by the political and financial power of the corporations."Ulrich Hoffmann, in a paper for UNCTAD also says that the focus on Green Economy and "green growth" in particular, "based on an evolutionary (and often reductionist) approach will not be sufficient to cope with the complexities of [[climate
change]]" and "may rather give much false hope and excuses to do nothing really fundamental that can bring about a U-turn of global greenhouse gas emissions. Clive Spash, an ecological economist, has criticised the use of economic growth to address environmental losses, and argued that the Green Economy, as advocated by the UN, is not a new approach at all and is actually a diversion from the real drivers of environmental crisis. He has also criticised the UN's project on the economics of ecosystems and biodiversity (TEEB), and the basis for valuing ecosystems services in monetary terms.
See also
References
Further reading
Jeremy Rifkin (2013), "The Third Industrial Revolution" Archived 2017-02-25 at the Wayback Machine. VII,233-242
Scott Cato, Molly (2009). Green Economics: An Introduction to Theory, Policy and Practice. Earthscan. ISBN 978-1844075713. Retrieved 1 July 2014.
Apostolopoulou, E.; Cortes-Vazquez, J.A. (2018). The Right to Nature: Social Movements, Environmental Justice and Neoliberal Natures. Routledge Studies in Environmental Policy. Taylor & Francis. ISBN 978-0-429-76309-0. Retrieved 1 June 2023.
External links
Green Growth Knowledge Platform
ICC Green Economy Roadmap 2012
Green Economy Coalition
UNEP – Green Economy
Green Economics Institute |
issues relating to biofuels | There are various social, economic, environmental and technical issues with biofuel production and use, which have been discussed in the popular media and scientific journals. These include: the effect of moderating oil prices, the "food vs fuel" debate, poverty reduction potential, carbon emissions levels, sustainable biofuel production, deforestation and soil erosion, loss of biodiversity, effect on water resources, the possible modifications necessary to run the engine on biofuel, as well as energy balance and efficiency. The International Resource Panel, which provides independent scientific assessments and expert advice on a variety of resource-related themes, assessed the issues relating to biofuel use in its first report Towards sustainable production and use of resources: Assessing Biofuels. In it, it outlined the wider and interrelated factors that need to be considered when deciding on the relative merits of pursuing one biofuel over another. It concluded that not all biofuels perform equally in terms of their effect on climate, energy security and ecosystems, and suggested that environmental and social effects need to be assessed throughout the entire life-cycle.
Social and economic effects
Oil price moderation
The International Energy Agency's World Energy Outlook 2006 concludes that rising oil demand, if left unchecked,
would accentuate the consuming countries' vulnerability to a severe supply disruption and resulting price shock. The report suggested that biofuels may one day offer a viable alternative, but also that "the implications of the use of biofuels for global security as well as for economic, environmental, and public health need to be further evaluated".According to Francisco Blanch, a commodity strategist for Merrill Lynch, crude oil would be trading 15 per cent higher and gasoline would be as much as 25 per cent more expensive, if it were not for biofuels. Gordon Quaiattini, president of the Canadian Renewable Fuels Association, argued that a healthy supply of alternative energy sources will help to combat gasoline price spikes.
"Food vs. fuel" debate
Food vs fuel is the debate regarding the risk of diverting farmland or crops for biofuels production in detriment of the food supply on a global scale. Essentially the debate refers to the possibility that by farmers increasing their production of these crops, often through government subsidy incentives, their time and land is shifted away from other types of non-biofuel crops driving up the price of non-biofuel crops due to the decrease in production. Therefore, it is not only that there is an increase in demand for the food staples, like corn and cassava, that sustain the majority of the world's poor but this also has the potential to increase the price of the remaining crops that these individuals would otherwise need to utilize to supplement their diets. A recent study for the International Centre for Trade and Sustainable Development shows that market-driven expansion of ethanol in the US increased maize prices by 21 percent in 2009, in comparison with what prices would have been had ethanol production been frozen at 2004 levels. A November 2011 study states that biofuels, their production, and their subsidies are leading causes of agricultural price shocks. The counter-argument includes considerations of the type of corn that is utilized in biofuels, often field corn not suitable for human consumption; the portion of the corn that is used in ethanol, the starch portion; and the negative effect higher prices for corn and grains have on government welfare for these products. The "food vs. fuel" or "food or fuel" debate is internationally controversial, with disagreement about how significant this is, what is causing it, what the effect is, and what can or should be done about it. The world is facing three global crises, energy, food and environment. Changing the trend of recreation or population growth can impact each one of these. By increasing the world population, the ratio of energy and food demands will increase as well. So, it can put these two energy and food industries in completion of supplying. Developing the techniques and utilizing the food crops for biofuel production, especially in shortage areas, can adverse the competition between the food and biofuel industries. It can be cay that harvesting and producing biofuels crop on a large scale can put local food communities at risk, such as challenges to access lands and portions of the food. If the food economy cannot place safe and stable, protocols such as Kyoto can not meet their purposes and help control emissions.
Poverty reduction
Researchers at the Overseas Development Institute have argued that biofuels could help to reduce poverty in the developing world, through increased employment, wider economic growth multipliers and by stabilising oil prices (many developing countries are net importers of oil). However, this potential is described as 'fragile', and is reduced where feedstock production tends to be large scale, or causes pressure on limited agricultural resources: capital investment, land, water, and the net cost of food for the poor.
With regards to the potential for poverty reduction or exacerbation, biofuels rely on many of the same policy, regulatory or investment shortcomings that impede agriculture as a route to poverty reduction. Since many of these shortcomings require policy improvements at a country level rather than a global one, they argue for a country-by-country analysis of the potential poverty effects of biofuels. This would consider, among other things, land administration systems, market coordination and prioritizing investment in biodiesel, as this 'generates more labour, has lower transportation costs and uses simpler technology'. Also necessary are reductions in the tariffs on biofuel imports regardless of the country of origin, especially due to the increased efficiency of biofuel production in countries such as Brazil.
Sustainable biofuel production
Responsible policies and economic instruments would help to ensure that biofuel commercialization, including the development of new cellulosic technologies, is sustainable. Responsible commercialization of biofuels represents an opportunity to enhance sustainable economic prospects in Africa, Latin America and impoverished Asia.
Environmental effects
Soil erosion and deforestation
Large-scale deforestation of mature trees (which help remove CO2 through photosynthesis — much better than sugar cane or most other biofuel feedstock crops do) contributes to soil erosion, un-sustainable global warming atmospheric greenhouse gas levels, loss of habitat, and a reduction of valuable biodiversity (both on land as in oceans). Demand for biofuel has led to clearing land for palm oil plantations. In Indonesia alone, over 9,400,000 acres (38,000 km2) of forest have been converted to plantations since 1996.
A portion of the biomass should be retained onsite to support the soil resource. Normally this will be in the form of raw biomass, but processed biomass is also an option. If the exported biomass is used to produce syngas, the process can be used to co-produce biochar, a low-temperature charcoal used as a soil amendment to increase soil organic matter to a degree not practical with less recalcitrant forms of organic carbon. For co-production of biochar to be widely adopted, the soil amendment and carbon sequestration value of co-produced charcoal must exceed its net value as a source of energy.Some commentators claim that removal of additional cellulosic biomass for biofuel production will further deplete soils.
Effect on water resources
Increased use of biofuels puts increasing pressure on water resources in at least two ways: water use for the irrigation of crops used as feedstocks for biodiesel production; and water use in the production of biofuels in refineries, mostly for boiling and cooling.
In many parts of the world supplemental or full irrigation is needed to grow feedstocks. For example, if in the production of corn (maize) half the water needs of crops are met through irrigation and the other half through rainfall, about 860 liters of water are needed to produce one liter of ethanol. However, in the United States only 5-15% of the water required for corn comes from irrigation while the other 85-95% comes from natural rainfall.
In the United States, the number of ethanol factories has almost tripled from 50 in 2000 to about 140 in 2008. A further 60 or so are under construction, and many more are planned. Projects are being challenged by residents at courts in Missouri (where water is drawn from the Ozark Aquifer), Iowa, Nebraska, Kansas (all of which draw water from the non-renewable Ogallala Aquifer), central Illinois (where water is drawn from the Mahomet Aquifer) and Minnesota.For example, the four ethanol crops: corn, sugarcane, sweet sorghum and pine yield net energy. However, increasing production in order to meet the U.S. Energy Independence and Security Act mandates for renewable fuels by 2022 would take a heavy toll in the states of Florida and Georgia. The sweet sorghum, which performed the best of the four, would increase the amount of freshwater withdrawals from the two states by almost 25%.
Pollution
Formaldehyde, acetaldehyde and other aldehydes are produced when alcohols are oxidized. When only a 10% mixture of ethanol is added to gasoline (as is common in American E10 gasohol and elsewhere), aldehyde emissions increase 40%. Some study results are conflicting on this fact however, and lowering the sulfur content of biofuel mixes lowers the acetaldehyde levels. Burning biodiesel also emits aldehydes and other potentially hazardous aromatic compounds which are not regulated in emissions laws.Many aldehydes are toxic to living cells. Formaldehyde irreversibly cross-links protein amino acids, which produces the hard flesh of embalmed bodies. At high concentrations in an enclosed space, formaldehyde can be a significant respiratory irritant causing nose bleeds, respiratory distress, lung disease, and persistent headaches. Acetaldehyde, which is produced in the body by alcohol drinkers and found in the mouths of smokers and those with poor oral hygiene, is carcinogenic and mutagenic.The European Union has banned products that contain Formaldehyde, due to its documented carcinogenic characteristics. The U.S. Environmental Protection Agency has labeled Formaldehyde as a probable cause of cancer in humans.
Brazil burns significant amounts of ethanol biofuel. Gas chromatograph studies were performed of ambient air in São Paulo, Brazil, and compared to Osaka, Japan, which does not burn ethanol fuel. Atmospheric Formaldehyde was 160% higher in Brazil, and Acetaldehyde was 260% higher.
Technical issues
Energy efficiency and energy balance
Despite its occasional proclamation as a "green" fuel, first-generation biofuels, primarily ethanol, are not without their own GHG emissions. While ethanol does produce fewer overall GHG emissions than gasoline, its production is still an energy intensive process with secondary effects. Gasoline generally produces 8.91 kg CO2 per gallon, compared to 8.02 kg CO2 per gallon for E10 ethanol and 1.34 kg CO2 per gallon for E85 ethanol. Based on a study by Dias de Oliveira et al. (2005), corn-based ethanol requires 65.02 gigajoules (GJ) of energy per hectare (ha) and produces approximately 1236.72 kg per ha of carbon dioxide (CO2), while sugar cane-based ethanol requires 42.43 GJ/ha and produces 2268.26 kg/ha of CO2 under the assumption of non-carbon neutral energy production. These emissions accrue from agricultural production, crop cultivation, and ethanol processing. Once the ethanol is blended with gasoline, it results in carbon-savings of approximately 0.89 kg of CO2 per gallon consumed (U.S. D.O.E., 2011a).
Economic viability
From a production standpoint, miscanthus can produce 742 gallons of ethanol per acre of land, which is nearly twice as much as corn (399 gal/acre, assuming average yield of 145 bushels per acre under normal corn-soybean rotation) and nearly three times as much as corn stover (165 gal/acre) and switchgrass (214 gal/acre). Production costs are a big impediment to large-scale implementation of 2nd Generation bio-fuels, and their market demand will depend primarily on their price competitiveness relative to corn ethanol and gasoline. At this time, costs of conversion of cellulosic fuels, at $1.46 per gallon, were roughly twice that of corn-based ethanol, at $0.78 per gallon. Cellulosic biofuels from corn stover and miscanthus were 24% and 29% more expensive than corn ethanol, respectively, and switchgrass biofuel is more than twice as expensive as corn ethanol.
Carbon emissions
Biofuels and other forms of renewable energy aim to be carbon neutral or even carbon negative. Carbon neutral means that the carbon released during the use of the fuel, e.g. through burning to power transport or generate electricity, is reabsorbed and balanced by the carbon absorbed by new plant growth. These plants are then harvested to make the next batch of fuel. Carbon neutral fuels lead to no net increases in human contributions to atmospheric carbon dioxide levels, reducing the human contributions to global warming. A carbon negative aim is achieved when a portion of the biomass is used for carbon sequestration. Calculating exactly how much greenhouse gas (GHG) is produced in burning biofuels is a complex and inexact process, which depends very much on the method by which the fuel is produced and other assumptions made in the calculation.
The carbon emissions (carbon footprint) produced by biofuels are calculated using a technique called Life Cycle Analysis (LCA). This uses a "cradle to grave" or "well to wheels" approach to calculate the total amount of carbon dioxide and other greenhouse gases emitted during biofuel production, from putting seed in the ground to using the fuel in cars and trucks. Many different LCAs have been done for different biofuels, with widely differing results. Several well-to-wheel analysis for biofuels has shown that first generation biofuels can reduce carbon emissions, with savings depending on the feedstock used, and second generation biofuels can produce even higher savings when compared to using fossil fuels. However, those studies did not take into account emissions from nitrogen fixation, or additional carbon emissions due to indirect land use changes. In addition, many LCA studies fail to analyze the effect of substitutes that may come into the market to replace current biomass-based products. In the case of Crude Tall Oil, a raw material used in the production of pine chemicals and now being diverted for use in biofuel, an LCA study found that the global carbon footprint of pine chemicals produced from CTO is 50 percent lower than substitute products used in the same situation offsetting any gains from utilizing a biofuel to replace fossil fuels. Additionally the study showed that fossil fuels are not reduced when CTO is diverted to biofuel use and the substitute products consume disproportionately more energy. This diversion will negatively affect an industry that contributes significantly to the world economy, globally producing more than 3 billion pounds of pine chemicals annually in complex, high technology refineries and providing jobs directly and indirectly for tens of thousands of workers.
A paper published in February 2008 in Sciencexpress by a team led by Searchinger from Princeton University concluded that once considered indirect land use changes effects in the life cycle assessment of biofuels used to substitute gasoline, instead of savings both corn and cellulosic ethanol increased carbon emissions as compared to gasoline by 93 and 50 percent respectively. A second paper published in the same issue of Sciencexpress, by a team led by Fargione from The Nature Conservancy, found that a carbon debt is created when natural lands are cleared and being converted to biofuel production and to crop production when agricultural land is diverted to biofuel production, therefore this carbon debt applies to both direct and indirect land use changes.The Searchinger and Fargione studies gained prominent attention in both the popular media and in scientific journals. The methodology, however, drew some criticism, with Wang and Haq from Argonne National Laboratory posted a public letter and send their criticism about the Searchinger paper to Letters to Science. Another criticism by Kline and Dale from Oak Ridge National Laboratory was published in Letters to Science. They argued that Searchinger et al. and Fargione et al. "...do not provide adequate support for their claim that biofuels cause high emissions due to land-use change. The U.S. biofuel industry also reacted, claiming in a public letter, that the "Searchinger study is clearly a "worst-case scenario" analysis..." and that this study "relies on a long series of highly subjective assumptions...".
Engine design
The modifications necessary to run internal combustion engines on biofuel depend on the type of biofuel used, as well as the type of engine used. For example, gasoline engines can run without any modification at all on biobutanol. Minor modifications are however needed to run on bioethanol or biomethanol. Diesel engines can run on the latter fuels, as well as on vegetable oils (which are cheaper). However, the latter is only possible when the engine has been foreseen with indirect injection. If no indirect injection is present, the engine hence needs to be fitted with this.
Campaigns
A number of environmental NGOs campaign against the production of biofuels as a large-scale alternative to fossil fuels. For example, Friends of the Earth state that "the current rush to develop agrofuels (or biofuels) on a large scale is ill-conceived and will contribute to an already unsustainable trade whilst not solving the problems of climate change or energy security". Some mainstream environmental groups support biofuels as a significant step toward slowing or stopping global climate change. However, supportive environmental groups generally hold the view that biofuel production can threaten the environment if it is not done sustainably. This finding has been backed by reports of the UN, the IPCC, and some other smaller environmental and social groups as the EEB and the Bank Sarasin, which generally remain negative about biofuels.
As a result, governmental and environmental organizations are turning against biofuels made in a non-sustainable way (hereby preferring certain oil sources as jatropha and lignocellulose over palm oil) and are asking for global support for this. Also, besides supporting these more sustainable biofuels, environmental organizations are redirecting to new technologies that do not use internal combustion engines such as hydrogen and compressed air.Several standard-setting and certification initiatives have been set up on the topic of biofuels. The "Roundtable on Sustainable Biofuels" is an international initiative which brings together farmers, companies, governments, non-governmental organizations, and scientists who are interested in the sustainability of biofuels production and distribution. During 2008, the Roundtable is developing a series of principles and criteria for sustainable biofuels production through meetings, teleconferences, and online discussions. In a similar vein, the Bonsucro standard has been developed as a metric-based certificate for products and supply chains, as a result of an ongoing multi-stakeholder initiative focussing on the products of sugar cane, including ethanol fuel.The increased manufacture of biofuels will require increasing land areas to be used for agriculture. Second and third generation biofuel processes can ease the pressure on land, because they can use waste biomass, and existing (untapped) sources of biomass such as crop residues and potentially even marine algae.
In some regions of the world, a combination of increasing demand for food, and increasing demand for biofuel, is causing deforestation and threats to biodiversity. The best reported example of this is the expansion of oil palm plantations in Malaysia and Indonesia, where rainforest is being destroyed to establish new oil palm plantations. It is an important fact that 90% of the palm oil produced in Malaysia is used by the food industry; therefore biofuels cannot be held solely responsible for this deforestation. There is a pressing need for sustainable palm oil production for the food and fuel industries; palm oil is used in a wide variety of food products. The Roundtable on Sustainable Biofuels is working to define criteria, standards and processes to promote sustainably produced biofuels. Palm oil is also used in the manufacture of detergents, and in electricity and heat generation both in Asia and around the world (the UK burns palm oil in coal-fired power stations to generate electricity).Significant area is likely to be dedicated to sugar cane in future years as demand for ethanol increases worldwide. The expansion of sugar cane plantations will place pressure on environmentally sensitive native ecosystems including rainforest in South America. In forest ecosystems, these effects themselves will undermine the climate benefits of alternative fuels, in addition to representing a major threat to global biodiversity.Although biofuels are generally considered to improve net carbon output, biodiesel and other fuels do produce local air pollution, including nitrogen oxides, the principal cause of smog.
See also
Agflation
Environmental impact of aviation
Social and environmental impact of palm oil
Environmental issues with energy
Indirect land use change impacts of biofuels
List of environmental issues
References
External links
Roundtable on Sustainable Biofuels - The Roundtable on Sustainable Biofuels Announces Version Zero of our Sustainability Standard
World Bank, Biofuels: The Promise and the Risks. World Development Report 2008: Agriculture for Development
Biofuels Aren't Really Green - by Deepak Divan, Frank Kreikebaum, Institute of Electrical and Electronics Engineers, Spectrum, November 2009
Global Trade and Environmental Impact Study of the EU Biofuels Mandate by the International Food Policy Institute (IFPRI) March 2010 |
agriculture, forestry, and fishing in japan | Agriculture, forestry, and fishing (Japanese: 農林水産, nōrinsuisan) form the primary sector of industry of the Japanese economy together with the Japanese mining industry, but together they account for only 1.3% of gross national product. Only 20% of Japan's land is suitable for cultivation, and the agricultural economy is highly subsidized.
Agriculture, forestry, and fishing dominated the Japanese economy until the 1940s, but thereafter declined into relative unimportance (see Agriculture in the Empire of Japan). In the late 19th century (Meiji period), these sectors had accounted for more than 80% of employment. Employment in agriculture declined in the prewar period, but the sector was still the largest employer (about 50% of the work force) by the end of World War II. It was further declined to 23.5% in 1965, 11.9% in 1977, and to 7.2% in 1988. The importance of agriculture in the national economy later continued its rapid decline, with the share of net agricultural production in GNP finally reduced between 1975 and 1989 from 4.1% to 3% In the late 1980s, 85.5% of Japan's farmers were also engaged in occupations outside farming, and most of these part-time farmers earned most of their income from nonfarming activities.
Japan's economic boom that began in the 1950s left farmers far behind in both income and agricultural technology. They were attracted to the government's food control policy under which high rice prices were guaranteed and farmers were encouraged to increase the output of any crops of their own choice. Farmers became mass producers of rice, even turning their own vegetable gardens into rice fields. Their output swelled to over 14 million metric tons in the late 1960s, a direct result of greater cultivated area and increased yield per unit area, owing to improved cultivation techniques.
Three types of farm households developed: those engaging exclusively in agriculture (14.5% of the 4.2 million farm households in 1988, down from 21.5% in 1965); those deriving more than half their income from the farm (14.2% down from 36.7% in 1965); and those mainly engaged in jobs other than farming (71.3% up from 41.8% in 1965). As more and more farm families turned to nonfarming activities, the farm population declined (down from 4.9 million in 1975 to 4.8 million in 1988). The rate of decrease slowed in the late 1970s and 1980s, but the average age of farmers rose to 51 years by 1980, twelve years older than the average industrial employee. Historically and today, women farmers outnumber male farmers. Government data from 2011 showed women heading more than three-quarters of new agribusiness ventures.
Agriculture
In 2018, Japan produced 9.7 million tons of rice (13th largest producer in the world), 3.6 million tons of sugar beet (used to produce sugar and ethanol), 1.2 million tons of sugarcane (used to produce sugar and ethanol), 208 thousand tons of persimmon (4th largest producer in the world), 3 million tons of potatoes, 1.3 million tons of cabbage, 1.6 million tons of onion, 773 thousand tons of tangerine, 756 thousand tons of apple, 764 thousand tons of wheat, 724 thousand tons of tomato, 612 thousand tons of carrot, 578 thousand tons of lettuce and chicory, 550 thousand tons of cucumber, 317 thousand tons of watermelon, 300 thousand tons of eggplant, 258 thousand tons of pear, 226 thousand tons of spinach, 211 thousand tons of soy, 197 thousand tons of pumpkin, 174 thousand tons of barley, 174 thousand tons of grape, 164 thousand tons of cauliflower and broccoli, 164 thousand tons of yam, 163 thousand tons of strawberry, 143 thousand tons of melon, 141 thousand tons of taro, 140 thousand tons of pepper, 113 thousand tons of peach, 112 thousand tons of apricot, and 2.7 million tons of other vegetables, in addition to smaller productions of other agricultural products.
Land shortage
The most striking feature of Japanese agriculture is the shortage of farmland due to Japan's distinctive geography and geology. The 49,000 square kilometres (19,000 sq mi) under cultivation constituted just 13.2% of the total land area in 1988. However, the land is intensively cultivated. Rice paddies occupy most of the countryside, whether on the alluvial plains, the terraced slopes, or wetlands and coastal bays. Non-paddy farmland share the terraces and lower slopes and are planted with wheat and barley in the autumn and with sweet potatoes, vegetables, and dry rice in the summer. Intercropping is common: such crops are alternated with beans and peas.
Japanese agriculture has been characterized as a "sick" sector because it must contend with a variety of constraints, such as the rapidly diminishing availability of arable land and falling agricultural incomes. The problem of surplus rice was further aggravated by extensive changes in the diets of many Japanese in the 1970s and 1980s. Even a major rice crop failure did not reduce the accumulated stocks by more than 25% of the reserve. In 1990, Japan was 67% self-sufficient in agricultural products and provided for around 30% of its cereal and fodder needs.As an attempt to consolidate farmland and increase productivity, "Farmland Intermediary Management Organizations (nōchi chūkan kanri kikō)," also known as Farmland Banks, were introduced as part of a reform package in 2014, which also included the reform of local Agricultural Committees. As Jentzsch notes, "The reform package is supposed to rationalize farmland consolidation into the hands of ninaite [bearer] farms, including corporations.
Impacts of climate change
Livestock
Livestock raising is a minor activity. Demand for beef rose in the 1900s, and farmers often shifted from dairy farming to production of high-quality (and high-cost) beef, such as Kobe beef. Throughout the 1980s, domestic beef production met over 2% of demand. In 1991, as a result of heavy pressure from the United States, Japan ended import quotas on potatoes as well as citrus fruit. Milk cows are numerous in Hokkaido, where 25% of farmers run dairies, but milk cows are also raised in Iwate, in Tōhoku, and near Tokyo and Kobe. Beef cattle are mostly concentrated in western Honshu, and on Kyushu. Hogs, the oldest domesticated animals raised for food, are found everywhere. Pork is the most popular meat.
Most of the imported beef comes from Australia, since beef from the United States and Canada was banned after the first cases of BSE in those countries. Those bans were lifted in 2006.
Forestry
Two thirds of land of Japan is forest. 40% of the forests in Japan are planted forests, such as cedar and cypress. They are mainly planted after the Pacific War, in attempt to produce construction material, but after Japan had experienced rapid economic growth, they switched construction material from wood to reinforced concrete. Moreover, cheaper import wood became more attractive, compared to domestic wood which is produced in steep mountain and high costs of labour. Nowadays, many planted forests are too dense and need thinning.
In 2015, Japanese forestry industry produced 20.05 million m3 volume of wood and 436.3 billion yen of production, half of it is mushroom production. Forestry composes 0.04% of Japan's GDP.
Fisheries
The Japanese fishing industry, both domestic and overseas, has long been centered on the Tsukiji fish market, in Tokyo, which is one of the world's largest wholesale markets for fresh, frozen, and processed seafood. Japan also has greatly advanced the techniques of aquaculture or sea farming. In this system, artificial insemination and hatching techniques are used to breed fish and shellfish, which are then released into rivers or seas. These fish and shellfish are caught after they grow bigger. Salmon is raised this way.
Japan has more than 2,000 fishing ports, including Nagasaki, in southwest Kyūshū; Otaru, Kushiro, and Abashiri in Hokkaidō. Major fishing ports on the Pacific coast of Honshū include, Hachinohe, Kesennuma, and Ishinomaki along the Sanriku coast, as well as Choshi, Yaizu, Shimizu, and Misaki to the east and south of Tokyo.
Japan is also one of the world's few whaling nations. Japan was a member of the International Whaling Commission, where the government pledged that its fleets would restrict their catch to international quotas, but it attracted international opprobrium for its failure to sign an agreement placing a moratorium on catching sperm whales. Japan withdrew from the International Whaling Commission in December 2018 and resumed commercial whaling in July 2019; since then, whaling activities have been limited to its territorial waters and exclusive economic zone.Two of the largest fishing companies in Japan are Nippon Suisan Kaisha and Maruha Nichiro; each employs more than 10,000 people and owns subsidiaries around the world.
Government position
The Ministry of Agriculture, Forestry and Fisheries is the government agency responsible for the fishing industry. The Japanese Fisheries Agency states that the Basic Fisheries Plan was developed by the Japanese government in 2007, and claims that the government is working to establish long-standing, strong fisheries and fishery practices by promoting the overall restoration of the fishery industry. This can be accomplished by promoting surveys and research into fishery resources, the promotion of international resource management in international waters, promoting international cooperation within the international fishing grounds, and improving the living environments for all aquatic life in inland waters, while at the same time promoting aquaculture. This restoration consists of many different phases to include the restoration and management of high-level fishery resources.
Other priorities of the Japanese government include continuing to develop new technologies to improve fishery operations, whether incorporating new workplace needed technologies, or creating and exploiting intellectual properties. Also, at the top of the list is the reorganization of the fish-labor industry organizations from the top down. The government provides support to the fishery operators groups by helping to acquire the equipment necessary to reduce fuel consumption, through the introduction of energy-saving operating systems. In order to maintain a strong work force in the fishery industry, the government has programs to encourage college students to look into the industry as a possible career path. This includes supporting activities that provide the opportunity to experience stationary net fishing and aquaculture. The government also provides the prospective employees with job information from fisheries worldwide while holding job seminars with well recognized companies in the Japanese fishery business. There is also a government sponsored on-site training program for individuals planning to make a career in the fishery industry. The fisheries in Japan are governed by the Japanese Fisheries Agency.
The Fisheries Agency is organized into four departments: Fisheries Policy Planning Department, Resources Management Department, Resources Development Department, and Fishing Port Department. The Fisheries Policy Planning Department is in charge of the planning of policies concerning the fisheries, and all administrative matters that go along with the organization. The Resources Management Department plans the continuous development of Japan's fisheries. The Resources Development Department is in charge of the scientific research and development in the field of fisheries. The Fishing Port Department is the base for fishery production activities and also the basis for the distribution and processing of the marine products.
Techniques
Ayu fishing
Tenkara fishing, a type of roach fishing
Factory ship
Artificial reefs are used to increase the sustainable fishing activities on the coastline.
Dolphin drive hunting
In literature
In 2008, Takiji Kobayashi's A Crab Canning Boat, a 1929 Marxist novel about a crab boat crew determined to stand up to a cruel captain under harsh conditions, became a surprise bestseller, thanks to an advertising campaign linking the novel to the working poor.
See also
Ministry of Agriculture, Forestry and Fisheries (Japan)
Agricultural Protectionism in Japan
List of Important Agricultural Heritage Systems (Japan)
Women in agriculture in Japan
Radiation effects from Fukushima I nuclear accidents
Marine biology
References
Citations
Sources
Iijima, Midori (26 February 2015). Japanese Women in Agriculture - Overview (PDF) (Report). USDA Foreign Agricultural Service. Archived from the original (PDF) on 13 November 2016. Retrieved 9 November 2016.
This article incorporates text from this source, which is in the public domain. Country Studies. Federal Research Division. - Japan
Comitini, S. (1966). MARINE RESOURCES EXPLOITATION AND MANAGEMENT IN THE ECONOMIC DEVELOPMENT OF JAPAN. Economic Development & Cultural Change, 14(4), 414. Retrieved from Business Source Complete database.
Fisheries Agency. (2009). Fisheries Policy for FY2009 (Executive Summary). Retrieved from http://www.jfa.maff.go.jp/e/annual_report?2008/pdf/data3.pdf
Adrianto, L.,Yoshiaki, M., Yoshiaki, S. (1995). Assessing local sustainability of fisheries system: a multi-criteriea participatory approach with the case of Yoron Island, Kagoshima prefecture, Japan. Marine Policy, 29(1),19-23. Retrieved from Science Direct database.
Further reading
Hayami, Yujiro, and Saburo Yamada. The agricultural development of Japan: a century's perspective (University of Tokyo Press, 1991).
External links
MAFF website |
cultivation of tobacco | The cultivation of tobacco usually takes place annually. The tobacco is germinated in cold frames or hotbeds and then transplanted to the field until it matures. It is grown in warm climates with rich, well-drained soil. About 4.2 million hectares of tobacco were under cultivation worldwide in 2000, yielding over seven million tonnes of tobacco.
Sowing and growth
Tobacco seeds are scattered onto the surface of the soil, as their germination is activated by light. In colonial Virginia, seedbeds were fertilized with wood ash or animal manure (frequently powdered horse manure). Seedbeds were then covered with branches to protect the young plants from frost damage, and the plants were left alone until around April.
In the 19th century, young plants came under increasing attack from certain types of flea beetles, Epitrix cucumeris or Epitrix pubescens, which destroyed half the U.S. tobacco crops in 1876. In the years afterward, many experiments were attempted and discussed to control the flea beetle. By 1880, growers discovered that replacing the branches with a frame covered with thin fabric effectively protected plants from the beetle. This practice spread, becoming ubiquitous in the 1890s.
In Asian, Oceania, and the Indian subcontinent, the tobacco cutworm (Spodoptera litura) is a great pest to the tobacco plant. The caterpillar's vigorous eating habits can cause up 23-50% in yield losses, resulting in economic strain to the local agricultural economies. The cabbage looper is also known to have caused damage to tobacco plants in North Carolina, which became a concern as farmers lacked a suitable method for controlling the caterpillars.Shade tobacco is the practice of growing the plants under a screen of cheesecloth fabric. The thin leaves were used for the outer wrappings of cigars.
Harvest
Tobacco can be harvested in several ways. In the oldest method, the entire plant is harvested at once by cutting off the stalk at the ground with a sickle. In the nineteenth century, bright tobacco began to be harvested by pulling individual leaves off the stalk as they ripened. As the plants grow, they usually require topping and suckering. "Topping" is the removal of the tobacco flowers while "suckering" is the pruning out of leaves that are otherwise unproductive. Both procedures ensure that as much of the plant's energy as possible focuses on producing the large leaves that are harvested and sold. "Cropping", "Pulling", and "Priming" are terms for removing mature leaves from tobacco plants. Leaves are cropped as they ripen, from the bottom to the top of the stalk.
The first crop of leaves located near the base of the tobacco stalk are called "sand lugs" in more rural southern tobacco states. They are called "sand lugs" because these leaves are close to the ground and get splashed with sand and clay when heavy rains hit the soil. Sand lugs weigh the most, and are most difficult to work with. Their weight is due to their large size and the added weight of soil; slaves lugged each stack to the "stringer" or "looper", typically a female slave, who bundled each stack of leaves. Eventually, workers carried the tobacco and placed it on sleds or trailers.
As the industrial revolution approached America, the harvesting wagons that transported leaves were equipped with man-powered stringers, an apparatus that used twine to attach leaves to a pole. In modern times, large fields are harvested by a single piece of farm equipment, though topping the flower and in some cases the plucking of immature leaves is still done by hand.
Some farmers still use "tobacco harvesters". They are not very efficient yet highly cost-effective for harvesting premium and rare strains of tobacco. The harvester trailers for in-demand crops are now pulled by diesel-fueled tractors. "Croppers" or "primers" pull the leaves off in handfuls and pass these to the "stringer" or "looper", which bundles the leaves to a four-sided pole with twine. These poles are hung until the harvester is full. The poles are then placed in a much larger wagon to be pulled by modern farm tractors to their destination. For rare tobaccos they are often cured on the farm. Traditionally, the slaves who cropped and pulled had a particularly tough time with the first pull of the large, dirty, base leaves. The leaves slapped their faces and dark tobacco sap, which dries into a dark gum, covered their bodies, and then soil stuck to the gum.
The croppers were men, and the stringers, who were seated on the higher elevated seats, were women and children. The harvesters had places for one team of ten workers: eight people cropping and stringing, plus a packer who moved the heavy strung poles of wet green tobacco from the stringers and packed them onto the pallet section of the harvester, plus a horseman. The outer seats were suspended from the harvester - slung out over to fit into the rows of tobacco. As these seats were suspended it was important to balance the weight of the two outside teams (similar to a playground see-saw). Having too heavy or light a person in an unbalanced combination often resulted in the harvester tipping over especially when turning around at the end of a row. Water tanks were a common feature on the harvester due to heat and danger of dehydration.
Global production
Trends
Production of tobacco leaf increased by 40% between 1971, during which 4.2 million tons of leaf were produced, and 1997, during which 5.9 million tons of leaf were produced. According to the Food and Agriculture organization of the UN, tobacco leaf production is expected to hit 7.1 million tons by 2010. This number is a bit lower than the record high production of 1992, during which 7.5 million tons of leaf were produced. The production growth was almost entirely due to increased productivity by developing nations, where production increased by 128%.During that same time period, production in developed countries actually decreased. China's increase in tobacco production was the single biggest factor in the increase in world production. China's share of the world market increased from 17% in 1971 to 47% in 1997. This growth can be partially explained by the existence of a high import tariff on foreign tobacco entering China. While this tariff has been reduced from 64% in 1999 to 10% in 2004, it still has led to local, Chinese cigarettes being preferred over foreign cigarettes because of their lower cost.
Every year 6.7 million tons of tobacco are produced throughout the world. The top producers of tobacco are China (39.6%), India (8.3%), Brazil (7.0%) and the United States (4.6%).
Major producers
United States
In the United States, as of 2014 North Carolina was the largest producer of tobacco, with around 1,800 tobacco farms employing 30,000 workers yielding in 400 million pounds of the crop annually.In the US, the decline in the number of smokers, the end of the Tobacco Transition Payment Program in 2014, and competition from growers in other countries, made tobacco farming economics more challenging as of 2015.
China
At the peak of global tobacco production, there were 20 million rural Chinese households producing tobacco on 2.1 million hectares of land. While it is the major crop for millions of Chinese farmers, growing tobacco is not as profitable as cotton or sugar cane. This is because the Chinese government sets the market price. While this price is guaranteed, it is lower than the natural market price because of the lack of market risk. To further control tobacco in their borders, China founded the State Tobacco Monopoly Administration (STMA) in 1982. STMA controls tobacco production, marketing, imports, and exports; and contributed 1.3% to national income between 1982 and 2004.
Brazil
In Brazil around 135,000 family farmers cite tobacco production as their main economic activity. Tobacco has never exceeded 0.7% of the country's total cultivated area. In the southern regions of Brazil, Virginia and Amarelinho flue-cured tobacco as well as Burley and Dark (Galpão Comum) air-cured tobacco are produced. These types of tobacco are used for cigarettes. In the northeast, darker, air-cured and sun-cured tobacco are grown. These types of tobacco are used for cigars, twists and dark-cigarettes.
Brazil's government has made attempts to reduce the production of tobacco but has not had a successful systematic anti-tobacco farming initiative. Brazil's government, however, provides small loans for family farms, including those that grow tobacco, through the Programa Nacional de Fortalecimento da Agricultura Familiar (PRONAF).
India
India has 96,865 registered tobacco farmers and many more who are not registered. Around 0.25% of India's cultivated land is used for tobacco production. Since 1947, the Indian government has supported growth in the tobacco industry. India has seven tobacco research centers that are located in: Jeelugumilli, A.P., Kandukuru, A.P., Guntur, A.P., Kalavacherla, A.P., Hunsur, Karnataka, Vedasandur, Tamil Nadu, Dinhata, West Bengal; and Rajamundry houses the core research institute. The government has set up Tobacco Board Guntur which works to increase production, sale and exports of Indian tobacco. Guntur is also well known for its tobacco plantations. The Central Tobacco Research Institute works under the aegis of the Indian Council of Agricultural Research. Tobacco crop is cultivated in an area of 0.45 M ha (0.27% of the net cultivated area) producing ≈750 M kg of tobacco leaf. India is the 2nd largest producer and exporter (in quantity terms) after China and Brazil, respectively. The production of Flue-Cured Virginia (FCV) tobacco is about 300 million kg from an area of 0.20 M ha while 450 M kg non-FCV tobacco is produced from an area of 0.25 M ha. In the global scenario, Indian tobacco accounts for 10% of the area and 9% of the total production. By virtue of the dominant role played by this commercial crop, the Indian Central Tobacco Committee (ICTC) established Central Tobacco Research Institute (CTRI) in Rajahmundry (Andhra Pradesh) in 1947. The institute was under the administrative control of ICTC, Madras from 1947 to 1965 and subsequently transferred to the Indian Council of Agricultural Research (ICAR), New Delhi. ICAR acts as a repository of information and provides consultancy on agriculture, horticulture, resource management, animal sciences, agricultural engineering, fisheries, agricultural extension, agricultural education, home science, and agricultural communication. It has the mandate to co-ordinate agricultural research and development programmes and to develop linkages at the national and international levels with related organisations to enhance the quality of life of the farming community.
Problems in tobacco production
Child labor
The International Labour Office reported that the most child-laborers work in agriculture, which is one of the most hazardous types of work. The tobacco industry houses some of these working children. There is widespread use of children on farms in the United States, Argentina, Brazil, China, India, Indonesia, Malawi and Zimbabwe. While some of these children work with their families on small family-owned farms, others work on large plantations.
In late 2009 reports were released by the London-based human-rights group Plan International, claiming that child labor was common on Malawi (producer of 1.8% of the world's tobacco) tobacco farms. The organization interviewed 44 teens, who worked full-time on farms during the 2007-2008 growing season. The child-laborers complained of low pay, long hours as well as physical and sexual abuse by their supervisors. They also reported suffering from green tobacco sickness, a form of nicotine poisoning. When wet leaves are handled, nicotine from the leaves gets absorbed in the skin and causes nausea, vomiting and dizziness. Children were exposed to 50-cigarettes worth of nicotine through direct contact with tobacco leaves. This level of nicotine in children can permanently alter brain structure and function.In 2014, Human Rights Watch released a report detailing child labor on U.S. tobacco farms. The report states 73% of the children they interviewed reported getting sick with nausea, headaches, respiratory illnesses, and skin conditions, while 66% reported symptoms consistent with acute nicotine poisoning. The report states most children they interviewed worked between 10 and 12 hours per day and some children reported earning less than minimum wage with deductions by the contractor or grower for drinking water or for reasons that were not explained to them.In United States children were found to be working for twelve hours in Tobacco Fields.Families that farm tobacco often have to make the difficult decision between having their children work or go to school. Unfortunately working often beats education because tobacco farmers, especially in the developing world, cannot make enough money from their crop to survive without the cheap labor that children provide.
In December 2022, the UN special report showed that 3000 children were working in Malawi’s tobacco industry, despite last years’ abolition of an employment system accused of fostering child labor in the tobacco industry. The government of Malawi was implementing programs aimed at ending child labor and ensuring its protection.
Economy
A large percent of the profits from tobacco production go to large tobacco companies rather than local tobacco farmers. Also many countries have government subsidies for tobacco farming. Major tobacco companies have encouraged global tobacco production. Philip Morris, British American Tobacco and Japan Tobacco each own or lease tobacco manufacturing facilities in at least 50 countries and buy crude tobacco leaf from at least 12 more countries. This encouragement, along with government subsidies has led to a glut in the tobacco market. This surplus has resulted in lower prices, which are devastating to small-scale tobacco farmers. According to the World Bank, between 1985 and 2000 the inflation-adjusted price of tobacco dropped 37%.
Environment
Tobacco production requires the use of a large amount of pesticides. Tobacco companies recommend up to 16 separate applications of pesticides just in the period between planting the seeds in greenhouses and transplanting the young plants to the field. Pesticide use has been worsened by the desire to produce bigger crops in less time because of the decreasing market value of tobacco. Pesticides often harm tobacco farmers because they are unaware of the health effects and the proper safety protocol for working with pesticides. These pesticides as well as fertilizers, end up in the soil, the waterway and the food chain. Coupled with child labor, pesticides pose an even greater threat. Early exposure to pesticides may increase a child's lifelong cancer risk as well as harm his or her nervous and immune systems.Tobacco is often heavily fertilized. Some of the mineral apatite in Florida used to produce phosphate for American tobacco crops contains uranium, radium, lead-210 and polonium-210 and radon. The radioactive smoke from tobacco fertilized this way is deposited in lungs and releases alpha radiation even if a smoker quits the habit. The combination of carcinogenic tar and radiation in a sensitive organ such as lungs increases the risk of cancer. If the smoker also breathes in the asbestos fibers which commonly occur in urban and industrial environments, the risk of cancer is greatly increased.
References
Further reading
Evan P. Bennett, When Tobacco Was King: Families, Farm Labor, and Federal Policy in the Piedmont. Gainesville, FL: University Press of Florida, 2014.
International Labor Office, Bitter Harvest: Child Labour in Agriculture. Geneva, 1997.
International Labor Office, Child Labour, Targeting the Intolerable. Geneva, 1996.
International Labor Office, International Hazard Datasheets on Occupations: Field Crop Worker.
External links
The Back-breaking Leaf, a 1959 documentary on tobacco harvesting
"Tobacco Pests" . New International Encyclopedia. 1905.Harvesting and Cultivating process |
local food | Local food is food that is produced within a short distance of where it is consumed, often accompanied by a social structure and supply chain different from the large-scale supermarket system.Local food (or locavore) movements aim to connect food producers and consumers in the same geographic region, to develop more self-reliant and resilient food networks; improve local economies; or to affect the health, environment, community, or society of a particular place. The term has also been extended to include not only the geographic location of supplier and consumer but can also be "defined in terms of social and supply chain characteristics." For example, local food initiatives often promote sustainable and organic farming practices, although these are not explicitly related to the geographic proximity of producer and consumer.
Local food represents an alternative to the global food model, which often sees food traveling long distances before it reaches the consumer.
History
In the US, the local food movement has been traced to the Agricultural Adjustment Act of 1933, which spawned agricultural subsidies and price supports. The contemporary American movement can be traced back to proposed resolutions to the Society for Nutrition Education's 1981 guidelines. In 1994, Chicago pop culture made local food a trend in the Midwest. These largely unsuccessful resolutions encouraged increased local production to slow farmland loss. The program described "sustainable diets" - a term then new to the American public. At the time, the resolutions were met with strong criticism from pro-business institutions, but have had a strong resurgence of backing since 2000.In 2008, the United States farm bill was revised to emphasise nutrition: "it provides low-income seniors with vouchers for use at local produce markets, and it added more than $1 billion to the fresh fruit and vegetable program, which serves healthy snacks to 3 million low-income children in schools".
Definitions
No single definition of local food systems exists. The geographic distances between production and consumption varies within the movement. However, the general public recognizes that "local" describes the marketing arrangement (e.g. farmers selling directly to consumers at regional farmers' markets or to schools). Definitions can be based on political or geographic boundaries, or on food miles. The American Food, Conservation, and Energy Act of 2008 states that:
(I) the locality or region in which the final product is marketed, so that the total distance that the product is transported is less than 400 miles from the origin of the product; or(II) the State in which the product is produced.
In May 2010 the USDA acknowledged this definition in an informational leaflet.State definitions of "local" can be included in laws, statutes, regulations, or program materials, however few state laws explicitly define "local" food. Most states use "local" (or similar words like "native") in food procurement and marketing policies to mean that the food was produced within that state.The concept of "local" is also seen in terms of ecology, where food production is considered from the perspective of a basic ecological unit defined by its climate, soil, watershed, species and local agrisystems, a unit also called an ecoregion or a foodshed. Similar to watersheds, foodsheds follow the process of where food comes from and where it ends up.
Contemporary local food markets
In America, local food sales were worth $1.2 billion in 2007, more than doubled from $551 million in 1997. There were 5,274 farmers' markets in 2009, compared to 2,756 in 1998. In 2005, there were 1,144 community-supported agriculture organizations (CSAs). There were 2,095 farm to school programs in 2009. Using metrics such as these, a Vermont-based farm and food advocacy organization, Strolling of the Heifers, publishes the annual Locavore Index, a ranking of the 50 U.S. states plus Puerto Rico and the District of Columbia. In the 2016 Index, the three top-ranking states were Vermont, Maine and Oregon, while the three lowest-ranking states were Nevada, Texas and Florida.Websites now exist that aim to connect people to local food growers. They often include a map where fruit and vegetable growers can pinpoint their location and advertise their produce.
Supermarket chains also participate in the local food scene. In 2008 Walmart announced plans to invest $400 million in locally grown produce. Other chains, like Wegman's (a 71-store chain across the northeast), have long cooperated with the local food movement. A recent study led by economist Miguel Gomez found that the supermarket supply chain often did much better in terms of food miles and fuel consumption for each pound compared to farmers markets.
Local food campaigns
Local food campaigns have been successful in supporting small local farmers. After declining for more than a century, the number of small farms increased 20% in the six years to 2008, to 1.2 million, according to the Agriculture Department.Launched in 2009, North Carolina's 10% local food campaign is aimed at stimulating economic development, creating jobs and promoting the state's agricultural offerings. The campaign is a partnership between The Center for Environmental Farming Systems (CEFS), with support from N.C. Cooperative Extension and the Golden LEAF Foundation.In 2017, a campaign was started in Virginia by the Common Grains Alliance mirroring many of the efforts of the North Carolina campaign.
Motivations for eating local
Motivations for eating local food include healthier food, environmental benefits, and economic or community benefits. Many local farmers, whom locavores turn to for their source of food, use the crop rotation method when producing their organic crops. This method not only aids in reducing the use of pesticides and pollutants, but also keeps the soil in good condition rather than depleting it. Locavores seek out farmers close to where they live, and this significantly reduces the amount of travel time required for food to get from farm to table. Reducing the travel time makes it possible to transport the crops while they are still fresh, without using chemical preservatives. The combination of local farming techniques and short travel distances makes the food consumed more likely to be fresh, an added benefit.
Benefits
Community
Local eating can support public objectives. It can promote community interaction by fostering relationships between farmers and consumers. Farmers' markets can inspire more sociable behavior, encouraging shoppers to visit in groups. 75% of shoppers at farmers' markets arrived in groups compared to 16% of shoppers at supermarkets. At farmers' markets, 63% had an interaction with a fellow shopper, and 42% had an interaction with an employee or farmer. More affluent areas tend to have at least some access to local, organic food, whereas low-income communities, which in America often have African American and Hispanic populations, may have little or none, and "are often replete with calorie-dense, low-quality food options", adding to the obesity crisis.
Environmental
Local foods require less energy to store and transport, possibly reducing greenhouse gas emissions. In local or regional food systems it can be easier to trace resource flows and recycle nutrients in that specific region. It can also be a way to preserve open landscapes and support biodiversity locally.
Economic
Farmers' markets create local jobs. In a study in Iowa (Hood 2010), the introduction of 152 farmers' markets created 576 jobs, a $59.4 million increase in output, and a $17.8 million increase in income. Promoting local food can support local actors and create job opportunities.
Nutritional
Since local foods travel a shorter distance and are often sold directly from producer to consumer, they may not require as much processing or packaging as other foods that need to be transported over long distances. If they are not processed, they may contain fewer added sugars or preservatives. The term "local" is sometimes synonymous with sustainable or organic practices, which can also arguably provide added health benefits.
Criticism
Food miles
Critics of the local foods movement question the fundamental principles behind the push to eat locally. For example, the concept that fewer "food miles" translates to a more sustainable meal has not been supported by major scientific studies. According to a study conducted at Lincoln University in New Zealand: "As a concept, food miles has gained some traction with the popular press and certain groups overseas. However, this debate which only includes the distance food travels is spurious as it does not consider total energy use especially in the production of the product." The locavore movement has been criticized by Vasile Stănescu, the co-senior editor of the Critical Animal Studies book series, as being idealistic and for not actually achieving the environmental benefits of the claim that the reduced food miles decrease the number of gasses emitted. Studies have shown that the amount of gasses saved by local transportation while existing, does not have a significant enough impact to consider it a benefit. Food miles concept does not consider agriculture, which is having contributed the highest when it comes to greenhouse gas emissions. Plus, season and transportation medium also makes a difference.
Food choice
The only study to date that directly focuses on whether or not a local diet is more helpful in reducing greenhouse gases was conducted by Christopher L. Weber and H. Scott Matthews at Carnegie-Mellon. They concluded that "dietary shift can be a more effective means of lowering an average household's food-related climate footprint than 'buying local'". An Our World In Data post makes the same point, that food choice is overwhelmingly more important than emissions from transport. However, a 2022 study suggests global food miles CO2 emissions are 3.5–7.5 times higher than previously estimated, with transport accounting for about 19% of total food-system emissions, though shifting towards plant-based diets would still remain substantially more important. The study concludes that "a shift towards plant-based foods must be coupled with more locally produced items, mainly in affluent countries".
Environmental impact
Numerous studies have shown that locally and sustainably grown foods release more greenhouse gases than food made in factory farms. The "Land Degradation" section of the United Nations report Livestock's Long Shadow concludes that "Intensification - in terms of increased productivity both in livestock production and in feed crop agriculture - can reduce greenhouse gas emissions from deforestation". Nathan Pelletier of Dalhousie University in Halifax, Nova Scotia found that cattle raised on open pastures release 50% more greenhouse gas emissions than cattle raised in factory farms. Adrian Williams of Cranfield University in England found that free range and organic raised chickens have a 20% greater impact on global warming than chickens raised in factory farm conditions, and organic egg production had a 14% higher impact on the climate than factory farm egg production.Studies such as Christopher Weber's report on food miles have shown that the total amount of greenhouse gas emissions in production far outweighs those in transportation, which implies that locally grown food is actually worse for the environment than food made in factory farms.
Economic feasibility
While locavorism has been promoted as a feasible alternative to modern food production, some believe it might negatively affect the efficiency of production. As technological advances have influenced the amount of output of farms, the productivity of farmers has skyrocketed in the last 70 years. These latter criticisms combine with deeper concerns of food safety, cited on the lines of the historical pattern of economic or food safety inefficiencies of subsistence farming which form the topic of the book The Locavore's Dilemma by geographer Pierre Desrochers and public policy scholar Hiroko Shimizu.
See also
References
Further reading
McWilliams, James. Just Food: Where Locavores Get It Wrong and How We Can Truly Eat Responsibly. New York: Little, Brown and Company, 2010.
Wilk, Richard, ed. Fast Food/Slow Food: The Cultural Economy of the Global Food System. Walnut Creek: Altamira Press, 2006. |
waterkeeper alliance | Waterkeeper Alliance is a worldwide network of environmental organizations founded in 1999 that work to protect bodies of water around the United States and the world. By December 2019, the group said it had grown to 350 members in 46 countries, with half the membership outside the U.S.; the alliance had added 200 groups in the last five years.In 1983, the founding Riverkeeper organization formed around the Hudson River in New York, in response to the untreated sewage and industrial water pollution that was degrading water quality in the river. Today, Waterkeeper Alliance, based in Manhattan, unites all Waterkeeper organizations. The group helps to coordinate and cover issues affecting Waterkeepers that work to protect rivers, lakes, bays, sounds, and other water bodies around the world. In the United States, only 52 of the 180 groups cover watersheds west of the Mississippi River.In June 2019, the group announced a project with online travel website Culture Trip called "Waterkeeper Warriors." They named 20 activists who “represent the impact one person can make on an issue that affects us all."
Notes
External links
Official website |
environmental geology | Environmental geology, like hydrogeology, is an applied science concerned with the practical application of the principles of geology in the solving of environmental problems created by man. It is a multidisciplinary field that is closely related to engineering geology and, to a lesser extent, to environmental geography. Each of these fields involves the study of the interaction of humans with the geologic environment, including the biosphere, the lithosphere, the hydrosphere, and to some extent the atmosphere. In other words, environmental geology is the application of geological information to solve conflicts, minimizing possible adverse environmental degradation, or maximizing possible advantageous conditions resulting from the use of natural and modified environment. With an increasing world population and industrialization, the natural environment and resources are under high strain which puts them at the forefront of world issues. Environmental geology is on the rise with these issues as solutions are found by utilizing it.
Environmental geology in relation to other fields
Hydrogeology
Hydrogeology is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust. Environmental geology is applied in this field as environmental problems are created in groundwater pollution due to mining, agriculture, and other human activities. Pollution is the impairment of groundwater by heat, bacteria, or chemicals. The greatest contributors to groundwater pollution are surface sources such as fertilizers, leaking sewers, polluted streams, and mining/mineral wastes. Environmental geology approaches the groundwater pollution problem by creating objectives when monitoring.
These objectives include:
determining the nature, extent, and degree of contamination,
determining the propagation mechanism and hydrological parameters, so that the appropriate countermeasures can be taken,
detecting and warning of movement into critical areas,
assessing the effectiveness of the immediate countermeasures undertaken to offset the effects of contamination,
recording of data for long term evaluation and compliance with standards, and
initiating research monitoring to validate and verify the models and assumptions upon which the immediate countermeasures are based.
Soil Science
Soil science is the study of soil as a natural resource on the surface of the earth. Environmental geology is applied in this field as soil scientists raise concerns on soil preservation and arable land with the world increasing population, increasing per capita food consumption, and land degradation. These environmental problems are attacked and reduced with environmental geology by using soil surveys. These surveys assess the properties of soils and are of use in geologic mapping, rural and urban land planning, especially in terms of agriculture and forestry. Soil surveys are essential parts of land use planning and mapping as they provide insight on agricultural land usage. Soil surveys provide information on optimum cropping systems and soil management so less land degradation is done and agriculture provides its optimum yield for the increasing per capita food consumption.Soil survey investigations include:
soil erodibility,
depth of soil,
steepness of slope,
shrink-swell potential,
frequency of rock outcrops,
possibility of salinization
fertilizer-plant response, and
crop variety trials.
Focuses
Environmental geology includes
managing geological and hydrogeological resources such as fossil fuels, minerals, water (surface and groundwater), and land use,
studying the earth's surface through the disciplines of geomorphology, and edaphology,
defining and mitigating exposure of natural hazards on humans,
managing industrial and domestic waste disposal and minimizing or eliminating effects of pollution, and
performing associated activities, often involving litigation.Environmental geology is often applied to some well known environmental issues including population growth, mining, diminishing resources, and global land use.
Mining
Since the Stone Age, when humans began mining for flint, they have been dependent on this practice, and the dependency on minerals continues to increase as society evolves. One of the downsides of mining is that it is restricted to areas where minerals are present and economically viable. Mining duration is also restrained as mineral resources are finite, so when a deposit is exhausted, mining in that location comes to an end. Although modern mining and mineral activities utilize many ways to reduce negative environmental impacts, accidental releases can occur and the appropriate mitigation and prevention practices were not common in historical practices. Potentially harmful metals, other deposit constituents, and mineral processing chemicals or byproducts can contaminate the surrounding environment due to these situations. Some common environmental impacts of mining are rock displacements that allow fine dust particles to seep into surface waters, the defacement of the local landscape, and the large amounts of waste with some being chemically reactive. Ultimately, the impact that mining has on the environment is determined by many factors such as the size of the operation and the type of mining. Environmental geology has reduced the negative environmental impacts of mining as it has been used in litigation toward mining. In some countries like Brazil and Australia for example, it is decreed by law that sites must undergo rehabilitation after a mining operation has ceased. Prior to any mining, an assessment is also necessary to analyze the potential environmental impacts. Another measure taken is that an environmental management program must be produced to show how the mine will operate. Land planning is an important aspect in deciding whether a site is suitable for mining but some environmental degradation is inevitable. Environmental Geology continues to lower the amount of negative effects that mining has on the natural environment.
Recycling
Nonrenewable resources are only one type of resource with the other two being potentially renewable and perpetual. Nonrenewable resources, such as fossil fuels and metals, are finite, and therefore cannot be replenished during human lifetime, but are being depleted at a high rate. Due to their importance in many economies, this creates an issue as the world keeps developing the technologies used to exploit these resources. Some important roles of these nonrenewable resources are to heat homes, fuel cars, and build infrastructure. Environmental geology has been used to approach this issue with the sustainable development of recycling and reusing. Recycling is the process of collecting recyclable consumer and industrial materials and products and then sorting them so they can be processed into raw materials with the intention of then using the raw materials to create new products. Recycling and reusing can be done on an individual scale as well as an industrial scale. These practices maximize the usage of resources as much as possible all while minimizing waste. They also manage the industrial and domestic waste disposal as they reduce the amount of waste discharged into the global environment.Reusing and recycling include:
composting: the biological decomposition of organic garden and food waste in order to use it as soil conditioner,
upcycling: increasing the value and quality in materials and products through the recycling process,
freecycling: giving or getting free items from others before buying new ones
industrial ecology: dismantling of massive artifacts to become input for new processesEnvironmental geology's approach to the decline of nonrenewable resources along with high amounts of waste polluting the Earth has been to reduce wasteful usage and recycle when possible.
Land use
Planning out the usage of land is important to reduce the risk of natural hazards on humans and their infrastructure, but mostly to reduce negative human impact on the natural environment. The land, water, air, materials, and energy use are all critically impacted by human settlement and resource production. New sites must be found for mining, waste disposal, and industrial sites as these are all parts of an industrial society. Suitable sites are often difficult to find and get approval for as they must be shown to have barriers so contaminants are prevented from entering the environment.
Site investigation in land use planning often includes at least two phases, an orientating investigation and a detailed investigation. The information in an orientating investigation is obtained through maps and other archived data. The information in a detailed investigation is obtained through a reconnaissance survey in the field and by reviewing the historic land use.
The orientating investigation includes:
topography, land use and vegetation, settlements, roads and railways,
climate: precipitation, temperature, evapotranspiration, direction and the velocity of the wind, as well as the frequency of strong winds,
hydrological and hydrogeological conditions: streams, lakes and ponds, springs, wells, use and quality of surface and groundwater, runoff, water balance, aquifer/aquiclude properties and stratigraphy, groundwater table, groundwater recharge and discharge,
geology: soil, geological structures, stratigraphy and lithology,
ecological aspects: e.g., nature reserves, protected geotopes, water protection areas.The detailed investigation includes:
geology: thickness and lateral extent of strata and geological units, lithology, homogeneity and heterogeneity, bedding conditions and tectonic structures, fractures, impact of weathering,
groundwater: water table, water content, direction and rate of groundwater flow, hydraulic conductivity, value of aquifer,
geochemical site characterization: chemical composition of soil, rocks and groundwater, estimation of contamination retention,
geotechnical stability: The geological barrier must be capable of adsorbing strain from the weight of a landfill, slag heap, or industrial building.
geogenic events: active faults, karst, earthquakes, subsidence, landslides,
anthropogenic activities: mining damage, buildings, quarries, gravel pits, etc., and
changes in soil and groundwater qualityEnvironmental geology includes both the monitorization and planning of land use. Land use maps are made to represent current land use along with possible future uses. Land maps like the one shown can be used to reduce human settlement in areas with potential natural hazards such as floods, geological instability, wildfires, etc. In the land map shown it can be seen that there is a margin of trees and vegetation between the settlements and Mississippi River to reduce the risk of flood damage as the Mississippi Rivers water levels change.
Further reading
Some books and peer-reviewed journals in the field are:
Environmental Earth Sciences (ISSN 1866-6280), formerly Environmental Geology (ISSN 0943-0105),
Environmental Geology (ISBN 9781493987870), and
Investigations in Environmental Geology (ISBN 9780131420649)
See also
Anthropocene
Economic geology
Environmental soil science
Integrated geography
Soil contamination
Water pollution
References
External links
US Dept. of Labor |
common agricultural policy | The Common Agricultural Policy (CAP) is the agricultural policy of the European Union. It implements a system of agricultural subsidies and other programmes. It was introduced in 1962 and has since then undergone several changes to reduce the EEC budget cost (from 73% in 1985, to 37% in 2017) and consider rural development in its aims. It has however, been criticised on the grounds of its cost, its environmental, and humanitarian effects.
Overview
The CAP is often explained as the result of a political compromise between France and Germany: German industry would have access to the French market; in exchange, Germany would help pay for France's farmers. The CAP has always been a difficult area of EU policy to reform; it is a problem that began in the 1960s and one that has continued to the present, albeit less severely. Changes to the CAP are proposed by the European Commission, after a public consultation, which then sends its proposals to the Council and to the European Parliament. Both the Council and the European Parliament have to agree to any changes. The Parliament was involved in the process of change for the first time in 2013. The involvement of the Parliament, which represents the citizens, increases the democratic legitimacy of the CAP. Outside Brussels proper, the farming lobby power has been a factor in determining EU agricultural policy since the earliest days of integration.In recent times change has been more forthcoming because of external trade demands and intrusion in agricultural affairs by other parts of the EU policy framework, such as consumer advocate working groups and the environmental departments of the Union. In addition, Euroscepticism in states such as Denmark (and formerly the UK) is fed in part by the CAP, which Eurosceptics consider detrimental to their economies.
Proponents claim that the CAP is an exceptional economic sector as it protects the "rural way of life" although it is recognized that it affects world poverty.
The policy has evolved significantly since it was created by the Treaty of Rome (1957). Substantial reforms over the years have moved the CAP away from a production-oriented policy.
CAP has been divided into two 'pillars':
Agricultural production support and common organization of markets (I pillar, known otherwise earlier as the 'agricultural guarantee' section)
Rural development policy (II pillar, otherwise the 'agricultural structural policy' pillar, known earlier as the 'agricultural guidance' section).Accordingly, the European Agricultural Guidance and Guarantee Fund (EAGGF) of the EU, which initially used to fund the CAP as a whole, has been replaced in 2007 with two separate funds, one for each of the two pillars:
the European Agricultural Guarantee Fund (EAGF) and
the European Agricultural Fund for Rural Development (EAFRD, a structural fund).CAP reforms have steadily lowered its share in the EU budget: in 1980 it accounted for more than 70% of the EU expenditure while in 2021 it accounted for less than 25%. In 2019 France was the biggest beneficiary of the policy by 17.3%, followed by Spain with 12.4% and Germany (11.2%), Italy (10.4%), Poland (8.1%) and the UK (7.2%). The 2003 reform introduced the Single Payment Scheme (SPS) or as it is known as well the Single Farm Payment (SFP). The most recent reform was made in 2013 by Commissioner Dacian Ciolos and applies for the period 2014 to 2020.
Since 1970, a separate Common Fisheries Policy (CFP) has been in place for the EU fisheries and fish market, with its own separate structural policy fund established as a spin-off from the EAGGF in 1993 (currently operating under the name European Maritime, Fisheries and Aquaculture Fund or EMFAF), while the fish market interventions have remained financed from the European Agricultural Guarantee Fund.
Agricultural production support and common organization of markets (I pillar)
This part of CAP is financed from the European Agricultural Guarantee Fund (EAGF). Each country can choose if the payment will be established at the farm level or at the regional level. Farmers receiving the SFP have the flexibility to produce any commodity on their land except fruit, vegetables and table potatoes. In addition, they are obliged to keep their land in good agricultural and environmental condition (cross-compliance). Farmers have to respect environmental, food safety, phytosanitary and animal welfare standards. This is a penalty measure: if farmers do not respect these standards, their payment will be reduced.
The direct aids and market related expenditure made up 31% of the total EU budget in 2010. Together with 11% for Rural Development, the total CAP budget took 42% of the total EU budget The CAP budget shrank relatively from 75% in 1984 to 37% of the total EU budget in 2017.Intervention mechanisms diminished significantly, for instance the Commission only intervened on: common wheat, butter, and skimmed milk powder. The Health Check of the CAP agreed in November 2008 added on a number of measures to help the farmers to respond better to signals from the markets and to face new challenges. Among a range of measures, the agreement abolished arable set-aside, increased milk quotas gradually leading up to their abolition in 2015, and converted market intervention into a genuine safety net. Ministers also agreed to increase modulation, whereby direct payments to farmers were reduced and the money transferred to the Rural Development Fund.
Milk quotas expired in April 2015. To prepare the dairy farmers for this transition, a 'soft landing' was ensured by increasing quotas by one per cent every year between 2009–10 and 2013–14. For Italy, the 5 per cent increase was introduced immediately in 2009–10. In 2009–10 and 2010–11, farmers who exceed their milk quotas by more than 6 per cent had to pay a levy 50 per cent higher than the normal penalty.
Production and market sectors covered by the CAP
The common agricultural policy price intervention covers only certain agricultural products:
cereal, rice, potatoes and flour
cooking oil
energy crops, vegetable oil fuel, biodiesel, bioethanol
animal feed stuffs and dried fodder
milk and milk products (such as condensed milk, powder milk, butter, cheese, whey, buttermilk, cream, yoghurt, kefir)
grapes, wine, vinegar, cider
honey
beef and veal, poultry meat and eggs, pig meat, sheep / lamb meat and goat meat
sugar
fruit and vegetables (including cultivated mushrooms)
cotton
peas, chickpea, lentil, field beans, soybean
sweet lupins
olives
flax seeds
flax fibers
silkworms
hemp
tobacco
hops
seeds
animal semen, egg cells and embryos
flowers and live plantsFish, Molluscs and crustaceans are covered by the separate Common Fisheries Policy.
The coverage of products in the external trade regime is more extensive than the coverage of the CAP regime. This is to limit competition between EU products and alternative external goods (for example, lychee juice could potentially compete with orange juice).
Objectives
The objectives, set out in Article 39 of the Treaty on the Functioning of the European Union, are as follows:
to increase productivity, by promoting technical progress and ensuring the optimum use of the factors of production, in particular labor;
to ensure a fair standard of living for the agricultural Community;
to stabilize markets;
to secure availability of supplies;
to provide consumers with food at reasonable prices.The CAP recognized the need to take account of the social structure of agriculture and of the structural and natural disparities between the various agricultural regions and to effect the appropriate adjustments by degrees.
CAP is an integrated system of measures that works by maintaining commodity price levels within the EU and by subsidizing production. There are a number of mechanisms:
Import levies are applied to specified goods imported into the EU. These are set at a level to raise the World market price up to the EU target price. The target price is chosen as the maximum desirable price for those goods within the EU.
Import quotas are used as a means of restricting the amount of food being imported into the EU. Some non-member countries have negotiated quotas allowing them to sell particular goods within the EU without tariffs. This notably applies to countries that had a traditional trade link with a member country.
An internal intervention price is set. If the internal market price falls below the intervention level then the EU will buy up goods to raise the price to the intervention level. The intervention price is set lower than the target price. The internal market price can only vary in the range between the intervention price and target price.
Direct subsidies are paid to farmers. This was originally intended to encourage farmers to choose to grow those crops attracting subsidies and maintain home-grown supplies. Subsidies were generally paid on the area of land growing a particular crop, rather than on the total amount of crop produced. Reforms implemented from 2005 are phasing out specific subsidies in favour of flat-rate payments based only on the area of land in cultivation, and for adopting environmentally beneficial farming methods. The change is intended to give farmers more freedom to choose for themselves those crops most in demand and reduce the economic incentive to overproduce.
Production quotas and 'set-aside' payments were introduced in an effort to prevent overproduction of some foods (for example, milk, grain, wine) that attracted subsidies well in excess of market prices. The need to store and dispose of excess produce was wasteful of resources and brought the CAP into disrepute. A secondary market evolved, especially in the sale of milk quotas, while some farmers made imaginative use of 'set-aside', for example, setting aside land that was difficult to farm. Currently set-aside has been suspended, subject to further decision about its future, following rising prices for some commodities and increasing interest in growing bio-fuels.The change in subsidies is intended to be completed by 2011, but individual governments have some freedom to decide how the new scheme will be introduced. The UK government has decided to run a dual system of subsidies in England, each year transferring a larger proportion of the total payment to the new scheme. Payments under the old scheme were frozen at their levels averaged over 2002–2003 and reduce each subsequent year. This allows farmers in England a period where their income is maintained, but which they can use to change farm practices to accord with the new regime. Other governments have chosen to wait, and change the system in one go at the latest possible time. Governments also have limited discretion to continue to direct a small proportion of the total subsidy to support specific crops. Alterations to the qualifying rules meant that many small landowners became eligible to apply for grants and the Rural Payments Agency in England received double the previous number of applications (110,000).
The CAP also aims to promote legislative harmonization within the Community. Differing laws in member countries can create problems for anyone seeking to trade between countries. Examples are regulations on permitted preservatives or Food coloring, labelling regulations, use of hormones or other drugs in livestock intended for human consumption and disease control, animal welfare regulations. The process of removing all hidden legislative barriers to trade is still incomplete.
Rural development policy (structural policy, II pillar)
Since 2000, the "second pillar" of the CAP, the EU rural development policy has been in effect, financed since 2007 from the European Agricultural Fund for Rural Development, one of the five European Structural and Investment Funds. This policy aims to promote the economic, social and environmental development of the countryside. Its budget, 11% of the total EU budget, has been allocated along three axes. The first axis focuses on improving the competitiveness of the farm and forestry sector through support for restructuring, development and innovation. The second one concerns the improvement of the environment and the countryside through support for land management as well as helping to fight climate change. Such projects could for example concern preserving water quality, sustainable land management, planting trees to prevent erosion and floods. The third axis concerns improving the quality of life in rural areas and encouraging diversification of economic activity. The policy also provided support to the Leader rural development methodology, under which Local Action Groups designed and carried out local development strategies for their area. Member States distribute "second pillar" funds through actions of national and regional rural development programmes.
Rural development, the second pillar of CAP, is a vitally important policy area in the European Union. It works to improve aspects of the economic, environmental and social situation of the EU's rural areas. Rural regions cover 57% of the EU territory and 24% of the EU population. Together with intermediate regions they comprise 91% of the EU territory and 59% of the total EU population. Across the EU, the dimensions of the rural-urban territorial vary – from countries with an explicitly defined rural character (such as Ireland, Sweden, Finland, etc.) to Member States that tend to be more urbanised (such as the Benelux countries, Malta).The policy works essentially through seven-year rural development programmes (RDPs) – which operate at either national or regional level. These are funded from the EU budget, national/regional budgets and private sources. Rural Development policy targets rural areas as a whole, with a focus on ensuring the competitiveness of farms and forestry, delivering sustainable management of natural resources and climate action as well as create growth and jobs in rural areas.
Budget
Rural development policy is financed by three categories of funding:
public money from the EU budget – i.e. from the EAFRD
public money from national/regional budgets – depending on whether the programme is national or regional
private money – in some cases, beneficiaries have to provide some funding themselves (from their own resources, a bank loan etc.)The expected total public spending (EU + national + regional) on rural development policy in the period between 2014 and 2020 is EUR 161 billion.
Rural development objectives and priorities 2014–2020
The three objectives and overall purpose of the CAP include:
fostering the competitiveness of agriculture;
ensuring the sustainable management of natural resources, and climate action;
achieving a balanced territorial development of rural economies and communities, including the creation and maintenance of employment.However, in practical terms RDPs are drawn up with reference to six more specific priorities, which are further divided into more detailed focus areas.
Knowledge transfer & innovation in agriculture, forestry & rural areas
Farm viability / competitiveness, sustainable management of forests
Food chain organization, animal welfare, risk management in agriculture
Ecosystems related to agriculture and forestry
Resource efficiency, low-carbon / climate-resilient economy
Social inclusion, poverty reduction, economic development
National and regional rural development programs
There is a total of 118 Rural Development Programs(RDP) in the EU. In most Member States there is a national program which covers the entire territory but in some countries there are several programs, most often linked to regions: France (30), Spain(22), Italy(23), Germany(15), Portugal(3), United Kingdom(4), Belgium(2), Finland(2).
Designing rural development programs
A given RDP links the priorities of rural development policy to the situation on its territory via a SWOT analysis.
The RDP then sets out a selection of measures drawn from the Rural Development Regulation to address the priorities in the appropriate way.
A measure is essentially a set of one types of activity, project, investment etc. which may be funded within a RDP to achieve the priorities of rural development policy.For example, the measure Investments in physical assets as set out in the Rural Development Regulation allows support for:
Investments in farms to improve their performance;
Investments in processing and marketing (i.e. not necessarily only for farmers);
Investments in farm- or forest-level infrastructure; and
"Non-productive" (i.e. primarily environmental) investments. Measure descriptions in the EU Rural Development Regulation give information of varying detail (according to the measure) about who is potentially eligible for support, what sorts of activity etc. can be supported, and whether there are limits on how much support may be offered.MS follow the rules for a given measure but, within this framework, still enjoy considerable flexibility about how they use it. For example, a MS might choose to make the measure Investments in physical assets available in its RDP, but only with regard to environmental investments.
Use of targets
In explaining how it will use the various measures together to address the priorities / focus areas of rural development policy within its RDP, the MS / region set various targets against these.
The nature of the target varies according to the focus area. For example, against focus area 5A – Increasing efficiency in water use by agriculture – the standard target indicator is the percentage of the Irrigation area in the program area which is expected to switch to more efficient irrigation equipment as a result of rural development support.
Development, approval and amendments
A MS / region draws up its RDP in close consultation with a wide range of interested parties, including bodies representing Civil society.
The MS / region submits its RDP to the Commission for analysis. The Commission approves the RDP when satisfied concerning its legality and quality (usually after several months of detailed discussion with the MS concerned).
RDPs usually need to be amended several times during their seven-year life, to keep them as relevant, effective and efficient as possible – in light of changing circumstances and the findings of monitoring and evaluation. Program amendments which go beyond surface details require the Commission's approval.
Project selection
When a RDP has been drawn up and approved, it is advertised.
People, businesses etc. which would like to receive support for projects apply for it. Provided that they are eligible for the type of support in question (according to the RDP), they may be selected for support on the basis of objective selection criteria .
Example: In a given RDP, a MS has decided to offer support for environmental investments in forests under the measure "Investments in forest area development". The measure as set out in the Rural Development Regulation allows a wide range of entities to be eligible for support. The MS decides to keep this broad approach in terms of eligibility, but to give priority to "private forest-holders". At the moment when projects are selected for support, therefore, extra selection "points" will be awarded to applications from private forest-holders. This approach would be announced in overview in the RDP itself, but worked out in detail in subsequent national implementing rules.
Monitoring and evaluation
Monitoring is essentially about tracking how fast, and in what way, RDPs are being implemented – with reference to financial data and other indicators.
RDPs are monitored continuously. Within this process, program authorities must each send an annual implementation report for each program by 30 June every year, starting in 2016 and ending in 2024.
Evaluation involves rather deeper analysis (especially of effectiveness, efficiency and impact). The key stages are:
Ex ante evaluation: Drawn up under the responsibility of the relevant program authority, this is submitted to the Commission at the same time as the program, and assesses the program's quality.
Evaluation during the programming period (in enhanced Annual Implementation reports 2017 and 2019 in particular): MS arrange for this to be done on the basis of an evaluation plan. The Commission may also carry out evaluations if it wishes.
Ex post evaluation: Drawn up under the responsibility of the relevant program authority, this is submitted to the Commission by the end of 2024.
Synthesis of evaluations: Syntheses at Union level of the ex ante and ex post evaluations are undertaken under the responsibility of the Commission and completed by 31 December of the year following the submission of the relevant evaluations.The monitoring and evaluation processes draw on a range of indicators concerning financial execution, outputs, results and impact.
Ex ante conditionalities
Ex ante conditionalities (EACs) help to ensure that MS have set the right background conditions for spending funds effectively and efficiently through their program.
Some EACs are "general" in the sense that they apply to all of the European Structural and Investment Funds (ESIFs).
Example: MS must have in place arrangements for applying EU public procurement law in the fields covered by the ESIF Funds. This is important because many program will allocate significant sums to projects covered by public procurement rules.
Other EACS are "fund-specific" (they do not apply to all ESIF Funds). The EAFRD has its own EACs.
Example: MS must have set out standards for Good Agricultural and Environmental Condition (GAEC) in national law and must specify them in their RDPs.MS declare their fulfilment or non-fulfilment of EACs in their programs, and summaries it in their Partnership Agreement. The Commission checks this information.
When a MS does not meet some or all EACs, usually the MS is required to follow an action plan which allows it to meet the EAC by the end of 2016.
In more exceptional cases – if failure to meet a given EAC is deemed to cause "significant prejudice" to the achievement of certain objectives – payments related to the priority concerned within that program may be partly or wholly suspended until the problem is resolved.
Performance reserve
6% of the EAFRD financial resources allocated to a given RDP are placed in a performance reserve, which is provisionally divided up between some or all of the rural development priorities.
After receipt of the 2019 annual implementation reports, the Commission checks which priorities have "performed well" – i.e. against which priorities particular "milestones" (key targets) have been met.
Where the milestones of a given priority have been met, the sum from the performance reserve initially allocated to that priority is confirmed.
Where the milestones of a given priority have not been met, the sum initially allocated from the performance reserve is transferred to priorities whose milestones have been met. This approach is intended to focus minds more sharply on achieving results.
Criticism
The CAP has been roundly criticized by many diverse interests since its inception. Criticism has been wide-ranging, and even the European Commission has long acknowledged the numerous defects of the policy. In May 2007, Sweden became the first EU country to take the position that all EU farm subsidies should be abolished, except those related to environmental protection.
Anti-development
Many developing countries are highly dependent on agriculture. The FAO finds that agriculture provides for the livelihood of 70% of the world's poorest people. As such, the subsidies in the CAP are charged with preventing developing countries from exporting agricultural produce to the EU on a level playing field. The WTO Doha Development Round, which intended to increase global development, has stalled due to the developed countries' refusal to remove agricultural subsidies.
A review of post-2013 proposal by Prof. Alan Matthews underlines the lack of ambition in tackling the issue. "This CAP reform was not intended to address the trade barriers used to keep some EU market prices higher than world market levels. The EU has reduced the effect of these barriers for a number of developing countries through extending the scope of preferential access under various trade agreements, and a further reduction is being negotiated in the WTO Doha Round. Nonetheless, developing countries will be disappointed that the opportunity was not taken in this reform to set a final date for the ending of export subsidies. A more ambitious CAP reform, in which the targeting of direct payments was pursued more insistently and coupled payments were phased out, would also have a greater effect in removing the remaining distortions caused by the CAP to world markets." In another study, Prof. Matthews showed how linking EU farm subsidies to goals such as environmental protection could help farmers in poor countries, although much depends on the size of the payments and how they are made.At the same time, however, the EU remains the world's biggest importer of farm products from developing countries. On average, over the period 2006–2008, the EU has imported €53 billion worth of goods. This is more than the US, Japan, Canada, Australia and New Zealand combined. This is further encouraged by a preferential market access agreement for products from developing countries. Today, around 71% of the EU's agricultural imports originate from developing countries. The 'Everything but Arms' program, gives the world's 49 least-developed countries duty-free and quota-free access to the EU market. Under the Economic Partnership Agreements, countries from the African, Caribbean and Pacific group enjoy full duty-free and quota free access.
Oversupply and its redistribution
To perpetuate the viability of European agriculture in its current state, the CAP-mandated demand for certain farm produce is set at a high level compared with demand in the free market (see § CAP as a form of state intervention). This leads to the European Union purchasing millions of tons of surplus output every year at the stated guaranteed market price, and storing this produce in large quantities (leading to what critics have called 'butter mountains' and 'wine lakes'), before selling the produce wholesale to developing nations. In 2007 in response to a parliamentary written question the UK government revealed that over the preceding year the EU Public Stock had amassed "13,476,812 tones of cereal, rice, sugar and milk products and 3,529,002 hectoliters of alcohol/wine", although the EU has claimed this level of oversupply is unlikely to be repeated. This point was actually proven in January 2009, where the EU had a store of 717,810 tons of cereals, 41,422 tons of sugar and a 2.3 million hectoliter wine surplus, showing that the stocks had diminished dramatically.The food crisis in 2008, which saw the stocks empty out and the prices skyrocket, even introduced a popular demand for the introduction of emergency stocks of agricultural produce in the EU, which would help stabilize prices both on the very volatile markets. In 2010, the European Commission announced its intention to sell out of its cereal stocks to stabilize the situation after a Russian grain export ban had stung world markets, sending wheat prices to two-year highs and sparked worries of a crisis in global food supplies that could spark widespread strains and protests.In 2010, the EU decided to use existing intervention stocks (cereals, milk powder and limited quantities of butter) for its "Food Aid for the Needy" scheme for 2011. An estimated 13 million poor Europeans benefit from this scheme.
Parts of the EU stocks are exported with the use of export subsidies. It is argued that many African and Asian dairy, tomato, grain and poultry farmers cannot keep up with cheap competition from Europe, thus their incomes can no longer provide for their families. At the same time, many urbanized families in the developing world benefit from the relatively cheaper products stemming from Europe.
For dairy products, export subsidies rose in 2009 after having been stopped in 2008. In 2009, the main recipients of dairy products that benefited from export subsidies were: Russia, Saudi Arabia, Egypt and Nigeria.
According to the 2003 Human Development Report the average dairy cow in the year 2000 under the European Union received $913 in subsidies annually, while an average of $8 per human being was sent in aid to Sub-Saharan Africa.
The 2005 Human Development Report states "The basic problem to be addressed in the WTO negotiations on agriculture can be summarized in three words: rich country subsidies. In the last round of world trade negotiations rich countries promised to cut agricultural subsidies. Since then, they have increased them". Several reports from the latest negotiations in the WTO, however, contradict the theory of the 2005 HDR report. On 29 July 2008, the WTO negotiations in the Doha round finally collapsed because of differences between the US, India and China over agricultural trade.
Artificially high food prices
CAP price intervention has been criticized for creating artificially high food prices throughout the EU. High import tariffs (estimated at 18–28%) have the effect of keeping prices high by restricting competition by non-EU producers. It is estimated that public support for farmers in OECD countries costs a family of four on average nearly US$1,000 per year in higher prices and taxes. The European Commission has responded that the average EU household today spends 15% of its budget on food, compared to 30% in 1960.The recent moves away from intervention buying, subsidies for specific crops, reductions in export subsidies, have changed the situation somewhat. In the past years intervention has been reduced or abolished in all sectors. After two decades of significant CAP reforms, farmers can now respond to market signals and increase production to react to the higher prices. Although the new decoupled payments were aimed at environmental measures, many farmers have found that without these payments their businesses would not be able to survive. With food prices dropping over the past thirty years in real terms, many products have been making less than their cost of production when sold at the farm gate.
Public health at the peril of agricultural policies
Public health professionals have also leveled criticism at the CAP and its support regimes, arguing that agricultural policy often disregards health. It is evident that supply outputs are generating widespread public health issues of obesity and diet-related non-communicable diseases (NCDs), such as cardio-vascular disease (CVD), cancer and type II diabetes. Diet is one of the major modifiable determinants in promoting or preventing chronic disease, and agricultural products have a major influence on the disease risk factors.
Initial criticism emerged in the early 2000s regarding the production orientation of the CAP and the need for decoupling due to the disjointed nature of agricultural production policy in relation to consumption (and thus nutrition). The arguments were re-enforced at the 2001 European Health Forum Gastein on the CAP, which made explicit – to policy makers – the link between nutrient quality of diets and agricultural policy. The Forum also identified opportunities to align the CAP to health objectives, more specifically by encouraging changes to dietary behaviour through adjusting CAP support.
Since 2008, under the leadership of the European Public Health and Agriculture Consortium (EPHAC), the public health nutrition narrative has gained traction in policy circles. Although agricultural policy-makers are beginning to realize the arguments for upstream health intervention, practical measures remain politically unpalatable. EPHAC maintains that agricultural policies can be used to internalize the health externalities of diet-related ill-health and improve population, society-wide public health nutrition.
Health groups have become increasingly vocal in their call for agricultural policies to contribute towards resolving the consumption problems of food; such as, excessive intake of saturated fatty acids (FSA), sugar and salt, or under-consumption of vitamins (leading to hypovitaminosis) and minerals. More attention should be paid, it is argued, on intervention policies upstream, at the primary food production and processing stages, to influence nutritional quality and the structural determinants of food choice, including; availability, accessibility and price.
Hurting smaller farms
Although most policy makers in Europe agree that they want to promote "family farms" and smaller scale production, the CAP in fact rewards larger producers. Because the CAP has traditionally rewarded farmers who produce more, larger farms have benefited much more from subsidies than smaller farms. For example, a farm with 1000 hectares, earning an additional €100 per hectare will make an additional €100,000, while a 10 hectare farm will only make an extra €1000, disregarding economies of scale. As a result, most CAP subsidies have made their way to large scale farmers.
Since the 2003 reforms subsidies have been linked to the size of farms, so farmers get the same for a hectare of land regardless of how much land they own. So while subsidies allow small farms to exist, large farms tend to get the larger share of the subsidies. With the 2008 Health Check of the CAP, a first step was taken towards limiting CAP payments to very large landowners.
The European Commissioner responsible for Agriculture and Rural Development Dacian Cioloş in his Public Hearing upon his nomination has showed his concern in small farms: "small holdings represent an important share, not only in the new Member States but also in South Europe". He has emphasized that a structural policy is needed "to modernize" small farms and to "develop existing opportunities in local markets", where there is "high demand for local products".
Environmental problems
A common view is that the CAP has traditionally promoted a large expansion in agricultural production. At the same time it has allowed farmers to employ unecological ways of increasing production, such as the indiscriminate use of fertilizers and pesticides, with serious environmental consequences. However, a total re-focusing of the payment scheme in 2004 now puts the environment at the centre of farming policy. By linking the payments to farmers to a number of strict environmental standards (among others) in the so-called cross compliance scheme, farmers will have to face cuts in their subsidy levels if they don't meet the strict environmental requirements.
In 2010, the EU announced that 31% of the €5 billion that was earmarked the new (mainly environmental) challenges in agriculture would be spent on protecting and promoting biodiversity in the European countryside. This money is part of the EU rural development policy, which is supporting agri-environmental projects throughout the Member States.
The CAP has furthermore been criticized due to its effect on farmland bird populations. Between 1980 and 2009, the farmland bird population has decreased from 600 million to 300 million, implying a loss of 50%. Among the species that have been hit hardest are the starling and the tree sparrow, which have both declined by 53%. The removal of hedgerows and ploughing over meadows are two significant factors that may have contributed to more efficient farming, but that also caused a decrease in farmland birds' habitats.In England, farmers have been lauded by the Royal Society for the Protection of Birds because the five most threatened bumblebees have made a comeback to the English nature due to the agri-environmental schemes. In Germany, support for extensive farming and biotope management helps maintain habitat for rare species such as orchids and butterflies. In Hungary, a special scheme was launched to protect the great bustard, maybe the world's heaviest flying bird, which needs areas with minimal disturbance and an abundant supply of insects to breed. In Cyprus, agri-environment schemes support the maintenance of traditional trees and bushes that are a natural habitat for the islands and likely to be of benefit to farmland birds in Cyprus.Rules instituted in 2015 barring or reducing payments for farmed land above threshold densities of trees or canopy cover have been attacked as having perverse consequences for mature trees, biodiversity, soil erosion and downstream flooding.
Equity among member states
Some countries in the EU have larger agricultural sectors than others, notably France and Spain, and consequently receive more money under the CAP. Countries such as the Netherlands and the United Kingdom have particularly urbanized populations and rely very little on agriculture as part of their economy (in the United Kingdom agriculture employs 1.6% of the total workforce and in the Netherlands 2.0%). The UK therefore receives less than half what France gets, despite a similar sized economy and population. Other countries receive more benefit from different areas of the EU budget. Overall, certain countries make net contributions, notably Germany (the largest contribution overall) and the Netherlands (the biggest contribution per person), but also the UK and France. The largest per capita beneficiaries are Greece and Ireland.
Another aspect is difference between older Western European and newer Central and Eastern member states, due to transitional arrangements the latter received smaller payments. In 2013 payments per hectare were 527 euros in Greece and only 89 euros in Latvia. In compensation the newer members were allowed to provide national farm aid. In March 2018 EU agriculture ministers failed to achieve consensus on a declaration about future of CAP, with ministers of Estonia, Latvia, Lithuania, Poland, and Slovakia demanding fully equal subsidies across the union.
Cotton subsidies
In spite of these declarations, the EU Commission proposed the continuation of cotton subsidies, coupled to production. The coupling of the subsidy means that they will continue to have significant trade-distorting effect, most notably on West African farmers who are unable to compete with subsidised cotton.
The Communication on the future of the CAP does not mention the cotton sector. Nevertheless, the most trade-distorting subsidies to cotton production have already been eliminated in the 2004 reform. The current EU cotton production corresponds to 1% of global cotton production and its effect on the evolution of world market prices is therefore negligible. On the other hand, the EU is by far the largest provider of development assistance to cotton. In the framework of the EU-Africa Partnership on Cotton the EU has made available more than €320 million. The EU market for cotton is already duty-free and quota-free and there are no export subsidies for cotton.
UK rebate and the CAP
The UK would have been contributing more money to the EU than any other EU member state, except that the UK government negotiated a special annual UK rebate in 1984. Due to the way the rebate is funded, France pays the largest share of the rebate (31%), followed by Italy (24%) and Spain (14%).The discrepancy in CAP funding is a cause of some consternation in the UK. As of 2004, France received more than double the CAP funds received by the UK (see diagram). This is a net benefit to France of €6.37 billion, compared to the UK. This is largely a reflection of the fact that France has more than double the land area of the UK. In comparison, the UK budget rebate for 2005 is scheduled to be approx. €5.5 billion. The popular view in the UK (as, for example, set forth in the tabloid press) is that if the UK rebate were reduced with no change to the CAP, then the UK would be paying money to keep the French farming sector in business – to many people in the UK, this would be seen as unfair.
If the rebate were removed without changes to the CAP then the UK would pay a net contribution of 14 times that of the French (In 2005 EU budget terms). The UK would make a net contribution of €8.25 billion compared to the current contribution of €2.75 billion, versus a current French net contribution of €0.59 billion.
In December 2005 the UK agreed to give up approximately 20% of the rebate for the period 2007–2013, on condition that the funds did not contribute to CAP payments, were matched by other countries' contributions and were only for the new member states. Spending on the CAP remained fixed, as had previously been agreed. Overall, this reduced the proportion of the budget spent on the CAP. It was agreed that the European Commission should conduct a full review of all EU spending.
Economic sustainability
Experts such as Prof. Alan Matthews believed 'greening' measures in the EU's proposed €418-billion post-2013 farm policy could lower the bloc's agricultural production potential by raising farm input costs by €5 billion, or around 2 per cent.
Target population
Only 5.4% of EU's population works on farms, and the farming sector is responsible for 1.6% of the GDP of the EU (2005). The number of European farmers is decreasing every year by 2%. Additionally, most Europeans live in cities, towns, and suburbs, not rural areas.
The 2007-2008 world food price crisis renewed calls for farm subsidies to be removed in light of evidence that farm subsidies contribute to rocketing food prices, which has a particularly detrimental effect on developing countries.
Origins and history
Origins
In the late 1950s to late 1960s, there was no example of a successful agricultural integration in Europe. There were only a few pre-existing legal stipulations that were considered, "weak, vague and highly underdeveloped". As part of building a common market, tariffs on agricultural products would have to be removed. However, the political clout of farmers, and the sensitivity of the issue in nations that still remembered severe food shortages during and after the Second World War, delayed the CAP and its implementation for many years. Nevertheless, the European Economic Community (EEC) offered an integrated agriculture policy to France, to help France to ratify the Treaty of Rome. In due course, article 39 was created in a set of five social and economic objectives.The Spaak Report of 1956 stated that a European common market that excluded agriculture was unthinkable. It argued that security of food supply was paramount and raised a series of questions about agriculture that needed to be answered by policy-makers. The Treaty of Rome, signed in March 1957, established the European Economic Community (EEC) and it was mainly due to the French pressure that the Treaty included agriculture. However, due to disagreements within the Six over agricultural policy, the articles on agriculture were vague and policy making was left until after the Treaty had been signed.Article 39.1 of the Treaty set out the objectives of the CAP: to increase productivity through technical progress and the best use of the factors of production (such as labour); to ensure a fair standard of living for communities employed in agriculture; to stabilize markets; to secure the availability of supplies; and to enforce fair prices. Article 39.2 stated that policy makers must take into account three factors: the circumstances of each agricultural activity due to the social structure of agricultural communities and the inequalities between richer and poorer regions; the need to act gradually to allow agriculture sufficient time to adjust; and to remember that agriculture was heavily integrated in the wider economy.Article 40 provided for the common organisation of markets and common prices, along with a fund to pay for it. Article 41 allowed for the introduction of additional measures to implement Article 39, such as the co-ordination of vocational education and research, the "dissemination of agricultural knowledge" and the encouragement of consumption of certain goods. Article 42 allowed the Council of the Community to decide how far the regulations on competition could apply to agriculture. This Article also allowed them to grant aid.During 3–12 July 1958 in Stresa, the Community held an agricultural conference attended by agricultural ministers from member states and the President of the European Commission, Walter Hallstein, along with observers representing agriculture. Three working parties at the conference investigated: the current state of agriculture and the agricultural policies of member states; the short-term effects of the implementation of the Rome Treaty; and the long-term aims of the CAP. In a speech to the conference, Hallstein complained of urbanisation that was leading to rural depopulation and he lamented the "clash of cultures" in which rural life and rural values were considered inferior. Hallstein also reflected on the Cold War threat from communism:
It is the core of Europe's achievements which is under threat: a whole civilization which rests on the inalienable freedom and dignity of the individual...this tragedy of liberty is also a tragedy of the rural class. Let us look around us, and, alas, we have not far to look; the rural class is its first victim. It is for this reason that we are convinced that the European rural class will count among the most trustworthy pillars of our unified European market. Because its fate is also at stake, and is one of the first threatened. In this room there is no one whose family tree doesn't reach back, sooner or later, to farming roots. We know what the rural class means to Europe, not only through its economic values, but also by its moral and social values.
The conference's Final Resolution argued for the vital importance of agriculture in economic and social life and expressed their unanimous wish to preserve the character of European farming, which was predominately based on small-size, family holdings. They agreed that it was necessary to help these farms increase their economic capacity and competitiveness. They also advocated structural changes to rationalize and cheapen production, which was intended to improve productivity. The Resolution also included a commitment to a price policy.Therefore, during 1958–1959, the Commission drafted the CAP and the Assembly commissioned reports into agriculture. The Commission submitted draft proposals in November 1959 (which were debated in the Assembly and by the Economic and Social Committee) and its final report in June 1960. In December the Council agreed to a system of import levies (for grain, sugar, pork, eggs and poultry) and to commodity regimes for agricultural produce. They also introduced the principle of Community Preference in the implementation of the levies and for the negotiation of commercial treaties with outside countries; this ensured that any trade concession granted to an outside country could not weaken the European producer in the Community market.
Initial years
In 1962 the European Agricultural Guidance and Guarantee Fund was founded to provide money for the CAP's market regimes. A year later, two arms of the Fund were established, the Guarantee side implemented market and price support and the Guidance part supplied structural aid. A Community regulation of 1964 provided detailed arrangements for the working of the Fund, including for estimating export refunds, the Community's main tool for controlling the market. Market regimes had been implemented for most agricultural produce by the end of the decade. An agreement in 1966 facilitated the completion of the single market for agriculture (which came into effect a year later), a single price support system and uniform protection against imports from outside countries. Hallstein hailed this agreement as the single most important stage in forging European unity because it helped to complete the CAP.
The six member states individually strongly intervened in their agricultural sectors, in particular with regard to what was produced, maintaining prices for goods and how farming was organised. The intervention posed an obstacle to free trade in goods while the rules continued to differ from state to state since freedom of trade would contradict the intervention policies. Some members, particularly France, and all farming professional organisations wanted to maintain strong state intervention in agriculture. That could not be achieved unless policies were harmonized and transferred to the European Community level.
By 1962, three major principles had been established to guide the CAP: market unity, community preference and financial solidarity. Since then, the CAP has been a central element in the European institutional system.
In June 1965 negotiations on the CAP came to halt in Brussels when the French delegation of the EEC, under the direction of Charles de Gaulle, decided to pull out of further discussion on the use of foreign levies and national budgets to support a budget for the Community. This was known as the Empty Chair Crisis. Talks resumed after January 1966, but the issue of the Community's own resources was only finalized three years later in the agricultural marathon 19–22 December 1969 when the Council adopted that agricultural levies would be allocated to the Community in their entirety and customs duties would be allocated progressively to the Community, in order to avoid excessive disruption of national budgets.
Early attempts at reform (Mansholt Plan)
On 21 December 1968, Sicco Mansholt, the European Commissioner for Agriculture, sent a memorandum to the Council of Ministers concerning agricultural reform in the European Community. This long-term plan, also known as the '1980 Agricultural Programme' or the 'Report of the Gaichel Group', named after the village in Luxembourg in which it had been prepared, laid the foundations for a new social and structural policy for European agriculture.
The Mansholt Plan noted the limits to a policy of price and market support. It predicted the imbalance that would occur in certain markets unless the Community undertook to reduce its land under cultivation by at least five million hectares. Mansholt also noted that the standard of living of farmers had not improved since the implementation of the CAP despite an increase in production and permanent increases in Community expenditure. He, therefore, suggested that production methods should be reformed and modernised and that small farms, which were bound to disappear sooner or later, according to Community experts, should be increased in size. The aim of the Plan was to encourage nearly five million farmers to give up farming. That would make it possible to redistribute their land and increase the size of the remaining family farms. Farms were considered viable if they could guarantee for their owners an average annual income comparable to that of all the other workers in the region. In addition to vocational training measures, Mansholt also provided for welfare programmes to cover retraining and early retirement. Finally, he called on the Member States to limit direct aid to unprofitable farms.Faced with the increasingly angry reaction of the agricultural community, Mansholt was soon forced to reduce the scope of some of his proposals. Ultimately, the Mansholt Plan was reduced to just three European directives, which, in 1972, concerned the modernisation of agricultural holdings, the cessation of certain agricultural activity and the training of farmers.
Between Mansholt and MacSharry
Hurt by the failure of Mansholt, would-be reformers were mostly absent throughout the 1970s, and reform proposals were few and far between. A system called "Agrimoney" was introduced as part of the fledgling EMU project but was deemed a failure and did not stimulate further reforms.The 1980s was the decade that saw the first true reforms of the CAP, foreshadowing further development from 1992 onwards. The influence of the farming bloc declined, and with it, reformers were emboldened. Environmentalists garnered great support in reforming the CAP, but it was financial matters that ultimately tipped the balance: due to huge overproduction the CAP was becoming expensive and wasteful. There was the introduction of a quota on dairy production in 1984 and, in 1988, a ceiling on EU expenditure to farmers. However, the basis of the CAP remained in place and it was not until 1992 that CAP reformers began to work in earnest.
Modern reforms
The current reform issues in EU agriculture are: lowering prices, ensuring food safety and quality, and guaranteeing stability of farmers' incomes. Other issues are environmental pollution, animal welfare and finding alternative income opportunities for farmers. Some of these issues are the responsibility of the member states.
The MacSharry reforms (1992)
In 1992, the MacSharry reforms (named after the European Commissioner for Agriculture, Ray MacSharry) were created to limit rising production, while at the same time adjusting to the trend toward a more free agricultural market. The reforms reduced levels of support by 29% for cereals and 16% for beef. They also created 'set-aside' payments to withdraw land from production, payments to limit stocking levels, and introduced measures to encourage retirement and afforestation.Since the MacSharry reforms, cereal prices have been closer to the equilibrium level, there is greater transparency in costs of agricultural support and the 'decoupling' of income support from production support has begun. However, the administrative complexity involved was seen as inviting fraud, and the associated problems of the CAP were far from being corrected.One of the factors behind the 1992 reforms was the need to reach agreement with the EU's external trade partners at the Uruguay Round of the General Agreement on Tariffs and Trade (GATT) talks with regards to agricultural subsidies.
Agenda 2000 (1999)
The 'Agenda 2000' reforms divided the CAP into two 'Pillars': production support and rural development. Several rural development measures were introduced including diversification, setting up producer groups and support for young farmers. Agri-environment schemes became compulsory for every Member State. The market support prices for cereals, milk and milk products and beef and veal were step-wise reduced while direct coupled payments to farmers were increased. Payments for major arable crops as cereals and oil-seeds were harmonized.The introduction of the euro in 1999 also ended the use of green exchange rates such as the green pound.
European Commission Report and decoupling (2003)
A 2003 report, commissioned by the European Commission, by a group of experts led by Belgian economist André Sapir stated that the budget structure was a "historical relic". The report suggested a reconsideration of EU policy, redirecting expenditure towards measures intended to increase wealth creation and cohesion of the EU. As a significant proportion of the budget is currently spent on agriculture and there is little prospect of the budget being increased, that would require reducing CAP expenditure. The report largely concerned itself to discussing alternative measures more useful to the EU, rather than discussing the CAP, but it also suggested that farm aid would be administered more effectively by member countries on an individual basis.
The report's findings were largely ignored. Instead, CAP spending was kept within the remit of the EU, and France led an effort to agree a fixed arrangement for CAP spending that would not be changed until 2012. It was made possible by advance agreement with Germany. It is that agreement that the UK currently wishes to see reopened, both in its efforts to defend the UK position on the UK rebate and also given that the UK is in favour of lowering barriers to entry for developing nations that are agricultural exporters.On 26 June 2003, EU farm ministers adopted a fundamental reform of the CAP, based on "decoupling" subsidies from particular crops. (Member states could choose to maintain a limited amount of specific subsidy.) The new "single farm payments" were subject to "cross-compliance" conditions relating to environmental, food safety and animal welfare standards. Many of them were already either good practice recommendations or separate legal requirements regulating farm activities. The aim was to make more money available for environmental quality or animal welfare programmes. The political scientist Peter Nedergaard analysed the 2003 reform on the basis of rational choice theory and stated that, "In order to arrive at an adequate explanation, an account of the policy entrepreneurship on the part of Commissioner Franz Fischler must be given."Details of the UK scheme were still being decided at its introductory date of May 2005. Details of the scheme in each member country could be varied subject to outlines issued by the EU. In England, the Single Payment Scheme provided a single flat rate payment of around £230 per hectare for maintaining land in cultivatable condition. In Scotland, payments were based on a historical basis and could vary widely. This scheme allowed for much wider non-production use of land that might still receive the environmental element of the support. Additional payments were available if land was managed in a prescribed environmental manner.
The overall EU and national budgets for subsidy were capped. That prevented the EU being required to spend more on the CAP than its limited budget.
The reforms entered into force in 2004–2005. (Member states could apply for a transitional period delaying the reform in their country to 2007 and phasing in reforms until 2012)
Sugar regime reform (2005–2006)
One of the crops subsidized by the CAP was sugar produced from sugar beet; the EU was by far the largest sugar beet producer in the world, with annual production at 17 million metric tons in 2017. That compared to levels produced by Brazil and India, the two largest producers of sugar from sugar cane.Sugar was to be included in the 1992 MacSherry reform or in the 1999 Agenda 2000 decisions; sugar was also subject to a phase in (to 2009) under the Everything But Arms trade deal giving tariff- and quota-free market access to least developed countries. As of 21 February 2006, the EU decided to reduce the guaranteed price of sugar by 36% over four years, starting in 2006. European production was projected to fall sharply. According to the EU, this was the first serious reform of sugar under the CAP for 40 years. Under the Sugar Protocol to the Lome Convention, nineteen ACP countries export sugar to the EU and would be affected by price reductions on the EU market.
These proposals followed the WTO Appellate Body, largely upholding on 28 April 2005 the initial decision against the EU sugar regime.The EU abolished sugar quotas in September 2017.
Reform package 2014
In 2010 the European Commission discussed the next reform of the CAP, which would coincide with the next financial perspectives package, as from 2014. The Commissioner responsible for Agriculture and Rural Development Dacian Cioloş, outlined seven major challenges that the future CAP needed to address: food production, globalization, the environment, economic issues, a territorial approach, diversity and simplification. The cited reasons for reform plans included:
a need to respond to the economic, environmental and territorial challenges faced by agricultural and rural areas today and in the future, and in doing so to better align the CAP to the Europe 2020 strategy for smart, sustainable and inclusive growth.
a need to make the policy more efficient and effective, as well as to further simplify it while maintaining sound financial management and controllability
making CAP support more equitable and balanced between Member States and farmers and better targeted at active farmers.The Commission launched the CAP reform process with an extensive public debate on the future of the Cap between April and June 2010, followed by a public conference in July 2010, with around 600 participants. The purpose of the debate was to have different sectors of society taking part. "The Common Agricultural Policy is not just a matter for experts. It's a policy for all Europeans", said Commissioner Cioloş. Based on the wide-ranging public debate, on 18 November 2010, the Commission presented a Communication on "The CAP towards 2020" The Communication Paper outlined three options for the future CAP and launched a consultation with other institutions and stakeholders. Over 500 contributions were received, 44% of which came from the farming and processing sector. These contributions form an integral part of the Impact Assessment of the legal proposals. The impact assessment evaluates alternative scenarios for the evolution of the policy on the basis of extensive quantitative and qualitative analysisOn 12 October 2011 the Commission presented a set of legal proposals to reform the common agricultural policy (CAP) after 2013. Its stated aim is to guarantee European citizens healthy and quality food production, while preserving the environment. According to the proposal, the three broad objectives of the future CAP are: "Viable food production", "Sustainable management of natural resources" and "Balanced territorial development", which respond directly to the economic, environmental and territorial balance challenges identified in the Communication and which guide the proposed changes to the CAP instruments.The Lisbon Treaty, which came into force on 1 December 2009, has extended the legislative powers of the European Parliament on agricultural matters, with the EP deciding together with the Council in a procedure known as the co-decision procedure. For the first time both institutions (European Parliament and the council) decided on an equal footing on the new agriculture legislative package. The European Parliament and the council, debated the text. The approval of the different regulations and implementing acts was received by mid-2013. On 26 June 2013 agreement was reached between the European Commission, the Council and the EU Parliament on a new CAP. The CAP reform came into force as from 1 January 2014.
New design of direct payments
Direct payments contribute to keeping farming in place throughout the EU territory by supporting and stabilizing farmers' income, thereby ensuring the longer-term economic viability of farms and making them less vulnerable to fluctuations in prices. They also provide basic public goods through their link with cross compliance.The legal proposals aim to move away from the different systems of the Single Payments Scheme in the EU-15 (which allows for historical references, or a payment per hectare, or a "hybrid" combination of the two) and the Single Area Payments Scheme (SAPS) in most of the EU-12, a new "Basic Payment Scheme" will apply after 2013. This will be subject to "cross compliance" (respecting certain environmental, animal welfare & other rules), as at present, although there are various simplifications to the current requirement. It intends to reduce significantly the discrepancies between the levels of payments obtained between farmers, between regions and between Member States. All Member States will be obliged to move towards a uniform payment per hectare at national or regional level by the start of 2019. In line with the Commission proposals within the Multi-Annual Financial Framework, the national envelopes for direct payments will be adjusted so that those that receive less than 90% of the EU average payment per hectare will receive more. The gap between the amounts currently foreseen and 90% of the EU-27 average is reduced by one-third.The reform of direct payments was intended to make them better suited with regard to:
"Greening": The legal proposals propose new concepts. Among them is the "greening" of direct payment. To strengthen the environmental sustainability of agriculture and enhance the efforts of farmers, the Commission is proposing to spend 30% of direct payments specifically for the improved use of natural resources. Farmers would be obliged to fulfill certain criteria such as crop diversification, maintenance of permanent pasture, the preservation of environmental reservoirs and landscapes.
Young farmers: To attract young people (under 40 years) into the farming business, the Commission is proposing that the Basic Payment to new entrant Young Farmers should be topped up by an additional 25% for the first 5 years of installation.
Small farmers: Any farmer wishing to participate in the Small Farmers Scheme will receive an annual payment fixed by the Member State of between €500 and €1,000, regardless of the farm's size. (The figure will either be linked to the average payment per beneficiary, or the national average payment per hectare for 3 ha.). Participants will face less stringent cross-compliance requirements, and be exempt from greening.
Active farmers: This new definition is aimed to exclude payments to applicants who exercise no real or tangible agricultural activity on their land. The Commission is proposing that payments would not be granted to applicants whose CAP direct payments are less than 5% of total receipts from all non-agricultural activities. This doesn't apply to farmers who receive less than €5,000 in direct payments.
"Capping": In the autumn of 2007 the European Commission was reported to be considering a proposal to limit subsidies to individual landowners and factory farms to around £300,000. Some factory farms and large estates would be affected in the UK, as there are over 20 farms/estates receiving £500,000 or more from the EU. Similar attempts have been unsuccessful in the past and were opposed in the UK by two strong lobbying organisations the Country Land and Business Association and the National Farmers Union. Germany, which had large collective farms still in operation in what was East Germany, also vigorously opposed changes marketed as "reforms". The proposal was reportedly submitted for consultation with EU member states on 20 November 2007. In the finally adopted rules, the amount of support that any individual farm can receive will be limited to €300,000 per year. However, to take employment into account, the holding can deduct the costs of salaries in the previous year (including taxes & social security contributions) before these reductions are applied. The funds "saved" will be transferred to the Rural Development envelope in the given country.
Cross compliance: All payments will continue to be linked to the respect of a number of baseline requirements relating to environment, animal welfare and plant & animal health standards. However, cross compliance will be greatly simplified.
See also
Common Fisheries Policy
Agriculture and Fisheries Council (Council of the European Union)
Directorate-General for Agriculture and Rural Development
European Commissioner for Agriculture and Rural Development
European Parliament Committee on Agriculture and Rural Development
European Union Association Agreement
Environmental effects of soybean imports to EU
Land Allocation Decision Support System
Spanish Agricultural Guarantee Fund
Lobbying in the United Kingdom
Protected Geographical Status Designation of Origin
United States farm bill – American equivalent
References
Further reading
Akrill, Robert, The Common Agricultural Policy (Sheffield: Sheffield Academic Press, 2000).
European Commission. "Agriculture". The EU's common agricultural policy (CAP): for our food, for our countryside, for our environment. Retrieved 10 July 2018.
Fennell, Rosemary, The Common Agricultural Policy of the European Community (London: HarperCollins, 1979; 2nd. ed. Wiley-Blackwell, 1988).
Grant, Wyn, The Common Agricultural Policy (London: Palgrave Macmillan, 1997).
Harris, Simon and Swinbank, Alan and Wilkinson, Guy, The Food and Farm Policies of the European Community (Chichester: John Wiley & Sons, 1983).
Katsarova, Ivana. "Common Agricultural Policy after 2013: What will change" (PDF). Library Briefing. Library of the European Parliament. Retrieved 18 December 2013.
Knudson, Ann-Christina L., Farmers on Welfare: The Making of Europe's Common Agricultural Policy (Cornell University Press, 2009).
Neville-Rofle, Edmund, The Politics of Agriculture in the European Community (Policy Studies Institute, European Centre, 1984).
"The reform of the CAP". 1987–1997 The European Union in a Europe in the throes of change. CVCE – Virtual Resource Centre for Knowledge about Europe (Previously European Navigator). Retrieved 18 December 2013.
rpa.gov.uk past and present UK subsidy schemes
"Reforming Agricultural Support". Future Agricultural Support for Scotland: 2013 CAP reform from a Scottish perspective. The James Hutton Institute. Retrieved 18 December 2013.Opinions
EU Report on effects of expansion of the EU on farm production
A public health point of view on CAP
CAP Reform Debate: Commissioner Cioloş vs Paolo De Castro MEP
New Zealand's hardy farm spirit from BBC correspondent John Pickford
Green and Pleasant Land
CAP Health Check Archived 30 December 2020 at the Wayback Machine CAP reform: Analysis and opinion from European researchers, academics and policy-makers
Is the EU CAP boosting deforestation? Some background info on why the EU is lacking creditability in case of its programs to combat deforestation and illegal logging
Nedergaard, Peter; Lynggaard, Kennet (May 2009). "The logic of policy development: lessons learned from reform and routine within the CAP 1980–2003". Journal of European Integration. Taylor and Francis. 31 (3): 291–309. doi:10.1080/07036330902782147. S2CID 154523102.
External links
The CAP reform, Council of the European Union
"Farmsubsidy.org". Searchable database of the recipients of CAP subsidies, using data obtained by access to information requests to EU member state governments. EU Transparency.org. Retrieved 18 December 2013.
Archival Sources relating to the history of the Common Agricultural Policy can be consulted at the Historical Archives of the European Union in Florence
Statistics on CAP objectives published by the European Commission
Ec.europa.eu
Enrd.ec.europa.eu
Ec.europa.eu
Google Books
Delorsinstitute.eu |
human impact on river systems | Many river systems are shaped by human activity and through anthropogenic forces. The process of human influence on nature, including rivers, is stated with the beginning of the Anthropocene, which has replaced the Holocene. This long-term impact is analyzed and explained by a wide range of sciences and stands in an interdisciplinary context. The natural water cycle and stream flow is globally influenced and linked to global interconnections. Rivers are an essential component of the terrestrial realm and have been a preferable location for human settlements during history. River is the main expression used for river channels themselves, riparian zones, floodplains and terraces, adjoining uplands dissected by lower channels and river deltas.
Human impact
The relationship between humans and rivers, which represent freshwater environments, is complicated. Rivers serve primarily as a freshwater resource and as sinks for domestic and industrial waste water. The consequences from this usage occur from diverse activities and root themselves in complex, interdisciplinary systems and practices.Environmental changes in rivers usually result from human development, such as population growth, the dependence on fossil resources, urbanization, global commerce and industrial and agricultural emission. Anthropogenic activities also include discrete elements like the use of fire, domestication of plants and animals, soil development, the establishment of settlements and irrigation. River ecosystems have been transformed downstream from the point of pollution. Active human transformations, river engineering, have altered the river systems and ecosystems.
River engineering
River engineering, a branch of civil engineering, deals with the process of planned human intervention to improve and restore rivers for human and environmental needs. With modern technologies, data collection and modelling, navigation can be improved, dredging reduced and new habitats can be created. River engineering also handles sediment and erosion control, which can be a threat to humankind by destroying infrastructure, hindering water supply and causing major river cutoffs. River training structures will help to modify the hydraulic flow and the sediment response of a river.
Humans have modified the natural behavior of rivers for longer than history is recorded. The management of water resources, protection against floods and hydropower are not new concepts. Regardless, river engineering has changed in the past century because of environmental concerns. The available amount and type of data about rivers has increased which provides more useful information about the behaviour of rivers and their ecosystems. Engineering experts are able to analyse and adapt in a more environmentally conscious way. Renaturalisation projects raise more awareness for the environment, however, rapidly growing and urbanizing population needs to be supplied with enough water resources and hydropower energy, which calls for more sustainable solutions.
River pollution
Water pollution occurs when water bodies, such as rivers, lakes and oceans are contaminated with harmful substances. These substances degrade the water quality and are toxic to humans as consumers and to the environment. The contamination in a river can come from a point source or non-point source pollution. The most common types of surface water pollution are agriculture, sewage and waste water (including stormwater runoff), oil pollution and radioactive substances. The agricultural sector consumes a lot of fresh water and is the leading source for water degradation.
Timeline
Most settlements in human history were placed along rivers, developing into riverine cities and traceable by their considerable environmental footprint. The human influence on rivers can be divided into six chronological stages:
Consequences
While river engineering can improve the behaviour of the river or hold it back to adapt to our infrastructure, and therefore be rated as positive or negative impact, pollution undoubtedly has a negative impact on our environment. The consequences are very complex and difficult to measure and classify, as often benefits for humankind imply drawbacks for the environment and the other way around.
Indicators
Indicators that make the human impact measurable and quantitatively assessable are: artificial water surface ratio, artificial water surface density ratio, disruption of longitudinal connectivity ratio, artificial river ratio, sinuosity of artificial cutoff, channelization ratio, artificial levee ratio, road along river ratio, artificial sediment transport ratio and the integrated river structure impact index.
Material and sediment flux
Through anthropogenic impact the material flux of rivers has changed, which enters the sea and has a strong effect on coastal and shelf environments.
Runoff
Alternate land use, deforestation, afforestation and different types of river engineering have also led to changes in hydrologic processes, such as runoff. Mushrooming illegal mining activity can, for example, change the soil structure, the pressure-gradient between stream flow and groundwater and the vegetation cover and therefore lead to increased or decreased runoff. In southern Ghana in the Lower Pra River Basin, the percentage of runoff change, which is linked to human activity is approximately up to 66%.
Human presence and infrastructure has benefited from river management, by changing and straightening rivers to make the valuable land around them more live-able.
Water quality
The consumption of polluted water leads to many deaths. In the year 2015, 1.8 million people world wide died because of water pollution and over 1 billion people became ill. Low-income and third-world communities are especially endangered, because they often live close to industries with high emission. Hazards like waterborne pathogens and diseases spread fast in water surface bodies like rivers and are especially threatening in third-world countries without sewage- and wastewater treatment systems.
Ecosystem and biodiversity
Large dams and the production of hydropower are an important part of today's energy supply and cover a broad part of river engineering. The approach of releasing small quantities of water through turbines responds to the growing power demand from rapidly growing cities; however, it also flattens the rivers hydrographs, and is responsible for a decline in seasonal hydraulic variability and for the loss of delta-building dynamics, as the sediments are stored in the reservoir. Small-scale users of the deltas lose the biodiversity and ecosystem productivity on which they depend.
The aquatic ecosystem consists of a chain of organisms which are dependent on each other. When pollution causes harm to one organism only, this process can start a chain reaction and danger the entire aquatic habitat. When the proliferation of newly introduces nutrients evoke plant and algae growth, oxygen levels in the water decrease. This process, known as eutrophication, suffocates plants and animals and leads to dead zones i.e. water habitats without any life. Chemicals and heavy metals from industrial wastewater are also toxic to aquatic life. They can shorten an organism's life span and its ability to reproduce while also endangering humans, since humans may feed on these organisms and any toxic impacts on these organisms may adversely impact humans.
Global and social impacts
Rivers have always been a reliable source for human communities. They have been a preferable place for settlements in early history and still provide a rich environment for big cities. Many trade routes lead along rivers and build global connections.
See also
River engineering
River management
Water pollution
Environmental engineering
Human impact on marine life
== References == |
natural resource economics | Natural resource economics deals with the supply, demand, and allocation of the Earth's natural resources. One main objective of natural resource economics is to better understand the role of natural resources in the economy in order to develop more sustainable methods of managing those resources to ensure their availability for future generations. Resource economists study interactions between economic and natural systems, with the goal of developing a sustainable and efficient economy.
Areas of discussion
Natural resource economics is a transdisciplinary field of academic research within economics that aims to address the connections and interdependence between human economies and natural ecosystems. Its focus is how to operate an economy within the ecological constraints of earth's natural resources. Resource economics brings together and connects different disciplines within the natural and social sciences connected to broad areas of earth science, human economics, and natural ecosystems. Economic models must be adapted to accommodate the special features of natural resource inputs. The traditional curriculum of natural resource economics emphasized fisheries models, forestry models, and mineral extraction models (i.e. fish, trees, and ore). In recent years, however, other resources, notably air, water, the global climate, and "environmental resources" in general have become increasingly important to policy-making.
Academic and policy interest has now moved beyond simply the optimal commercial exploitation of the standard trio of resources to encompass management for other objectives. For example, natural resources more broadly have defined recreational, as well as commercial values. They may also contribute to overall social welfare levels, by their mere existence.
The economics and policy area focuses on the human aspects of environmental problems. Traditional areas of environmental and natural resource economics include welfare theory, land/location use, pollution control, resource extraction, and non-market valuation, and also resource exhaustibility, sustainability, environmental management, and environmental policy. Research topics could include the environmental impacts of agriculture, transportation and urbanization, land use in poor and industrialized countries, international trade and the environment, climate change, and methodological advances in non-market valuation, to name just a few.
Hotelling's rule is a 1938 economic model of non-renewable resource management by Harold Hotelling. It shows that efficient exploitation of a nonrenewable and nonaugmentable resource would, under otherwise stable economic conditions, lead to a depletion of the resource. The rule states that this would lead to a net price or "Hotelling rent" for it that rose annually at a rate equal to the rate of interest, reflecting the increasing scarcity of the resource. Nonaugmentable resources of inorganic materials (i.e. minerals) are uncommon; most resources can be augmented by recycling and by the existence and use of substitutes for the end-use products (see below).
Vogely has stated that the development of a mineral resource occurs in five stages: (1) The current operating margin (rate of production) governed by the proportion of the reserve (resource) already depleted. (2) The intensive development margin governed by the trade-off between the rising necessary investment and quicker realization of revenue. (3) The extensive development margin in which extraction is begun of known but previously uneconomic deposits. (4) The exploration margin in which the search for new deposits (resources) is conducted and the cost per unit extracted is highly uncertain with the cost of failure having to be balanced against finding usable resources (deposits) that have marginal costs of extraction no higher than in the first three stages above. (5) The technology margin which interacts with the first four stages. The Gray-Hotelling (exhaustion) theory is a special case, since it covers only Stages 1–3 and not the far more important Stages 4 and 5.Simon has stated that the supply of natural resources is infinite (i.e. perpetual) These conflicting views will be substantially reconciled by considering resource-related topics in depth in the next section, or at least minimized.
Furthermore, Hartwick's rule provides insight to the sustainability of welfare in an economy that uses non-renewable resources.
Perpetual resources vs. exhaustibility
Background and introduction
The perpetual resource concept is a complex one because the concept of resource is complex and changes with the advent of new technology (usually more efficient recovery), new needs, and to a lesser degree with new economics (e.g. changes in prices of the material, changes in energy costs, etc.). On the one hand, a material (and its resources) can enter a time of shortage and become a strategic and critical material (an immediate exhaustibility crisis), but on the other hand a material can go out of use, its resource can proceed to being perpetual if it was not before, and then the resource can become a paleoresource when the material goes almost completely out of use (e.g. resources of arrowhead-grade flint). Some of the complexities influencing resources of a material include the extent of recyclability, the availability of suitable substitutes for the material in its end-use products, plus some other less important factors.
The Federal Government suddenly became compellingly interested in resource issues on December 7, 1941, shortly after which Japan cut the U.S. off from tin and rubber and made some other materials, such as tungsten, very difficult to obtain. This was the worst case for resource availability, becoming a strategic and critical material. After the war a government stockpile of strategic and critical materials was set up, having around 100 different materials that were purchased for cash or obtained by trading off U.S. agricultural commodities for them. In the longer term, scarcity of tin later led to completely substituting aluminum foil for tin foil and polymer lined steel cans and aseptic packaging substituting for tin electroplated steel cans.
Resources change over time with technology and economics; more efficient recovery leads to a drop in the ore grade needed. The average grade of the copper ore processed has dropped from 4.0% copper in 1900 to 1.63% in 1920, 1.20% in 1940, 0.73% in 1960, 0.47% in 1980, and 0.44% in 2000.Cobalt had been in an iffy supply status ever since the Belgian Congo (world's only significant source of cobalt) was given a hasty independence in 1960 and the cobalt-producing province seceded as Katanga, followed by several wars and insurgencies, local government removals, railroads destroyed, and nationalizations. This was topped off by an invasion of the province by Katangan rebels in 1978 that disrupted supply and transportation and caused the cobalt price to briefly triple. While the cobalt supply was disrupted and the price shot up, nickel and other substitutes were pressed into service.Following this, the idea of a "Resource War" by the Soviets became popular. Rather than the chaos that resulted from the Zairean cobalt situation, this would be planned, a strategy designed to destroy economic activity outside the Soviet bloc by the acquisition of vital resources by noneconomic means (military?) outside the Soviet bloc (Third World?), then withholding these minerals from the West.An important way of getting around a cobalt situation or a "Resource War" situation is to use substitutes for a material in its end-uses. Some criteria for a satisfactory substitute are (1) ready availability domestically in adequate quantities or availability from contiguous nations, or possibly from overseas allies, (2) possessing physical and chemical properties, performance, and longevity comparable to the material of first choice, (3) well-established and known behavior and properties particularly as a component in exotic alloys, and (4) an ability for processing and fabrication with minimal changes in existing technology, capital plant, and processing and fabricating facilities. Some suggested substitutions were alunite for bauxite to make alumina, molybdenum and/or nickel for cobalt, and aluminum alloy automobile radiators for copper alloy automobile radiators. Materials can be eliminated without material substitutes, for example by using discharges of high tension electricity to shape hard objects that were formerly shaped by mineral abrasives, giving superior performance at lower cost, or by using computers/satellites to replace copper wire (land lines).
An important way of replacing a resource is by synthesis, for example, industrial diamonds and many kinds of graphite, although a certain kind of graphite could be almost replaced by a recycled product. Most graphite is synthetic, for example, graphite electrodes, graphite fiber, graphite shapes (machined or unmachined), and graphite powder.
Another way of replacing or extending a resource is by recycling the material desired from scrap or waste. This depends on whether or not the material is dissipated or is available as a no longer usable durable product. Reclamation of the durable product depends on its resistance to chemical and physical breakdown, quantities available, price of availability, and the ease of extraction from the original product. For example, bismuth in stomach medicine is hopelessly scattered (dissipated) and therefore impossible to recover, while bismuth alloys can be easily recovered and recycled. A good example where recycling makes a big difference is the resource availability situation for graphite, where flake graphite can be recovered from a renewable resource called kish, a steelmaking waste created when carbon separates out as graphite within the kish from the molten metal along with slag. After it is cold, the kish can be processed.Several other kinds of resources need to be introduced. If strategic and critical materials are the worst case for resources, unless mitigated by substitution and/or recycling, one of the best is an abundant resource. An abundant resource is one whose material has so far found little use, such as using high-aluminous clays or anorthosite to produce alumina, and magnesium before it was recovered from seawater. An abundant resource is quite similar to a perpetual resource. The reserve base is the part of an identified resource that has a reasonable potential for becoming economically available at a time beyond when currently proven technology and current economics are in operation. Identified resources are those whose location, grade, quality, and quantity are known or estimated from specific geologic evidence. Reserves are that part of the reserve base that can be economically extracted at the time of determination; reserves should not be used as a surrogate for resources because they are often distorted by taxation or the owning firm's public relations needs.
Comprehensive natural resource models
Harrison Brown and associates stated that humanity will process lower and lower grade "ore". Iron will come from low-grade iron-bearing material such as raw rock from anywhere in an iron formation, not much different from the input used to make taconite pellets in North America and elsewhere today. As coking coal reserves decline, pig iron and steel production will use non-coke-using processes (i.e. electric steel). The aluminum industry could shift from using bauxite to using anorthosite and clay. Magnesium metal and magnesia consumption (i.e. in refractories), currently obtained from seawater, will increase. Sulfur will be obtained from pyrites, then gypsum or anhydrite. Metals such as copper, zinc, nickel, and lead will be obtained from manganese nodules or the Phosphoria formation (sic!). These changes could occur irregularly in different parts of the world. While Europe and North America might use anorthosite or clay as raw material for aluminum, other parts of the world might use bauxite, and while North America might use taconite, Brazil might use iron ore. New materials will appear (note: they have), the result of technological advances, some acting as substitutes and some with new properties. Recycling will become more common and more efficient (note: it has!). Ultimately, minerals and metals will be obtained by processing "average" rock. Rock, 100 tonnes of "average" igneous rock, will yield eight tonnes of aluminum, five tonnes of iron, and 0.6 tonnes of titanium.The USGS model based on crustal abundance data and the reserve-abundance relationship of McKelvey, is applied to several metals in the Earth's crust (worldwide) and in the U.S. crust. The potential currently recoverable (present technology, economy) resources that come closest to the McKelvey relationship are those that have been sought for the longest time, such as copper, zinc, lead, silver, gold and molybdenum. Metals that do not follow the McKelvey relationship are ones that are byproducts (of major metals) or have not been vital to the economy until recently (titanium, aluminum to a lesser degree). Bismuth is an example of a byproduct metal that does not follow the relationship very well; the 3% lead reserves in the western U.S. would have only 100 ppm bismuth, clearly too low-grade for a bismuth reserve. The world recoverable resource potential is 2,120 million tonnes for copper, 2,590 million tonnes for nickel, 3,400 million tonnes for zinc, 3,519 billion tonnes for aluminum, and 2,035 billion tonnes for iron.Diverse authors have further contributions. Some think the number of substitutes is almost infinite, particularly with the flow of new materials from the chemical industry; identical end products can be made from different materials and starting points. Since all materials are 100 times weaker than they theoretically should be, it ought to be possible to eliminate areas of dislocations and greatly strengthen them, enabling lesser quantities to be used. To summarize, "mining" companies will have more and more diverse products, the world economy is moving away from materials towards services, and the population seems to be levelling, all of which implies a lessening of demand growth for materials; much of the materials will be recovered from somewhat uncommon rocks, there will be much more coproducts and byproducts from a given operation, and more trade in minerals and materials.
Trend towards perpetual resources
As radical new technology impacts the materials and minerals world more and more powerfully, the materials used are more and more likely to have perpetual resources. There are already more and more materials that have perpetual resources and less and less materials that have nonrenewable resources or are strategic and critical materials. Some materials that have perpetual resources such as salt, stone, magnesium, and common clay were mentioned previously. Thanks to new technology, synthetic diamonds were added to the list of perpetual resources, since they can be easily made from a lump of another form of carbon. Synthetic graphite, is made in large quantities (graphite electrodes, graphite fiber) from carbon precursors such as petroleum coke or a textile fiber. A firm named Liquidmetal Technologies, Inc. is utilizing the removal of dislocations in a material with a technique that overcomes performance limitations caused by inherent weaknesses in the crystal atomic structure. It makes amorphous metal alloys, which retain a random atomic structure when the hot metal solidifies, rather than the crystalline atomic structure (with dislocations) that normally forms when hot metal solidifies. These amorphous alloys have much better performance properties than usual; for example, their zirconium-titanium Liquidmetal alloys are 250% stronger than a standard titanium alloy. The Liquidmetal alloys can supplant many high performance alloys.Exploration of the ocean bottom in the last fifty years revealed manganese nodules and phosphate nodules in many locations. More recently, polymetallic sulfide deposits have been discovered and polymetallic sulfide "black muds" are being presently deposited from "black smokers" The cobalt scarcity situation of 1978 has a new option now: recover it from manganese nodules. A Korean firm plans to start developing a manganese nodule recovery operation in 2010; the manganese nodules recovered would average 27% to 30% manganese, 1.25% to 1.5% nickel, 1% to 1.4% copper, and 0.2% to 0.25% cobalt (commercial grade) Nautilus Minerals Ltd. is planning to recover commercial grade material averaging 29.9% zinc, 2.3% lead, and 0.5% copper from massive ocean-bottom polymetallic sulfide deposits using an underwater vacuum cleaner-like device that combines some current technologies in a new way. Partnering with Nautilus are Tech Cominco Ltd. and Anglo-American Ltd., world-leading international firms.There are also other robot mining techniques that could be applied under the ocean. Rio Tinto is using satellite links to allow workers 1500 kilometers away to operate drilling rigs, load cargo, dig out ore and dump it on conveyor belts, and place explosives to subsequently blast rock and earth. The firm can keep workers out of danger this way, and also use fewer workers. Such technology reduces costs and offsets declines in metal content of ore reserves. Thus a variety of minerals and metals are obtainable from unconventional sources with resources available in huge quantities.
Finally, what is a perpetual resource? The ASTM definition for a perpetual resource is "one that is virtually inexhaustible on a human time-scale". Examples given include solar energy, tidal energy, and wind energy, to which should be added salt, stone, magnesium, diamonds, and other materials mentioned above. A study on the biogeophysical aspects of sustainability came up with a rule of prudent practice that a resource stock should last 700 years to achieve sustainability or become a perpetual resource, or for a worse case, 350 years.If a resource lasting 700 or more years is perpetual, one that lasts 350 to 700 years can be called an abundant resource, and is so defined here. How long the material can be recovered from its resource depends on human need and changes in technology from extraction through the life cycle of the product to final disposal, plus recyclability of the material and availability of satisfactory substitutes. Specifically, this shows that exhaustibility does not occur until these factors weaken and play out: the availability of substitutes, the extent of recycling and its feasibility, more efficient manufacturing of the final consumer product, more durable and longer-lasting consumer products, and even a number of other factors.
The most recent resource information and guidance on the kinds of resources that must be considered is covered on the Resource Guide-Update [1]
Transitioning: perpetual resources to paleoresources
Perpetual resources can transition to being a paleoresource. A paleoresource is one that has little or no demand for the material extracted from it; an obsolescent material, humans no longer need it. The classic paleoresource is an arrowhead-grade flint resource; no one makes flint arrowheads or spearheads anymore—making a sharpened piece of scrap steel and using it is much simpler. Obsolescent products include tin cans, tin foil, the schoolhouse slate blackboard, and radium in medical technology. Radium has been replaced by much cheaper cobalt-60 and other radioisotopes in radiation treatment. Noncorroding lead as a cable covering has been replaced by plastics.
Pennsylvania anthracite is another material where the trend towards obsolescence and becoming a paleoresource can be shown statistically. Production of anthracite was 70.4 million tonnes in 1905, 49.8 million tonnes in 1945, 13.5 million tonnes in 1965, 4.3 million tonnes in 1985, and 1.5 million tonnes in 2005. The amount used per person was 84 kg per person in 1905, 7.1 kg in 1965, and 0.8 kg in 2005. Compare this to the USGS anthracite reserves of 18.6 billion tonnes and total resources of 79 billion tonnes; the anthracite demand has dropped so much that these resources are more than perpetual.
Since anthracite resources are so far into the perpetual resource range and demand for anthracite has dropped so far, is it possible to see how anthracite might become a paleoresource? Probably by customers continuing to disappear (i.e. convert to other kinds of energy for space heating), the supply network atrophy as anthracite coal dealers cannot retain enough business to cover costs and close, and mines with too small a volume to cover costs also close. This is a mutually reinforcing process: customers convert to other forms of cleaner energy that produce less pollution and carbon dioxide, then the coal dealer has to close because of lack of enough sales volume to cover costs. The coal dealer's other customers are then forced to convert unless they can find another nearby coal dealer. Finally, the anthracite mine closes because it does not have enough sales volume to cover its costs.
Global geochemical cycles
Global geochemical cycles critical for life
See also
References
Further reading
David A. Anderson (2019). Environmental Economics and Natural Resource Management 5e, [2] New York: Routledge.
Michael J. Conroy and James T. Peterson (2013). Decision Making in Natural Resource Management, New York: Wiley-Blackwell.
Kevin H. Deal (2016). Wildlife and Natural Resource Management 4e, Boston: Delmar Cengage Learning.
External links
The International Society for Ecological Economics (ISEE)
The International Journal of Green Economics
Curated bibliography at IDEAS/RePEc |
list of environmental ministries | An environmental ministry is a national or subnational government agency politically responsible for the environment and/or natural resources. Various other names are commonly used to identify such agencies, such as Ministry of the Environment, Department of the Environment, Department of Environmental Protection, Department of Natural Resources or Ministry for the Ecological Transition. Such agencies typically address environmental concerns such as the maintenance of environmental quality, nature preserves, the sustained use of natural resources, and prevention of pollution or contamination of the natural environment. Sometimes these tasks are undertaken by other agencies, such as ministries of agriculture or of transport.
Following is a list of environmental ministries by country:
Algeria
Ministry of Water Resources and Environment
Argentina
Ministry of the Environment and Sustainable Development
National Parks Administration
Australia
FederalDepartment of Climate Change, Energy, the Environment and WaterStatesDepartment for Environment and Water (South Australia)
Department of Environment and Science (Queensland)
Department of Energy, Environment and Climate Action (Victoria)
Department of Planning and Environment (New South Wales)
Department of Natural Resources and Environment (Tasmania)
Department of Water and Environmental Regulation (Western Australia)
Azerbaijan
Ministry of Ecology and Natural Resources
Bangladesh
Ministry of Environment, Forest and Climate Change (Bangladesh)
Department of Environment
Forest Department
Bangladesh Climate Change Trust
Bangladesh National Herbarium
Bangladesh Forest Research Institute (BFRI)
Bangladesh Forest Industries Development Corporation
Bangladesh Rubber Board
Brazil
Ministry of the Environment
Bulgaria
Ministry of Environment and Water
Cambodia
Ministry of Environment
Canada
NationalEnvironment and Climate Change Canada
Fisheries and Oceans Canada
Natural Resources CanadaProvincialDepartment of Environment and Local Government (New Brunswick)
Manitoba Environment, Climate and Parks
Ministry of the Environment, Conservation and Parks
Ministry of Natural Resources and Forestry
Ministry of Energy and Natural Resources (Quebec)
Ministry of Sustainable Development, Environment, and Fight Against Climate Change
Nova Scotia Department of Environment and Climate Change
China, People's Republic of
Mainland China
Ministry of Ecology and Environment
formerly Ministry of Environmental Protection (2008–2018)National Nuclear Safety Administration
Ministry of Natural Resources
State Forestry and Grassland Administration (aka National Park Administration)
Hong Kong
Environment and Ecology Bureau
Environmental Protection Department
Agriculture, Fisheries and Conservation Department
Macau
Secretariat for Transport and Public Works
Environmental Protection Bureau (Macau)
Croatia
Ministry of Construction and Spatial Planning
Ministry of Environmental and Nature Protection
Cuba
Ministry of Science, Technology and Environment
Democratic Republic of the Congo
Ministry of Environment, Nature Conservation and Tourism
Denmark
Ministry of Climate and Energy
Ministry of Environment
Danish Forest and Nature Agency
Danish Geodata Agency
Egypt
Ministry of Environment
El Salvador
Ministry of the Environment and Natural Resources
Finland
Finnish Safety and Chemicals Agency
Radiation and Nuclear Safety Authority
France
Ministry of Agriculture, Food, Fisheries, Rural Affairs and Spatial Planning
Ministry of Ecology, Sustainable Development and Energy
Georgia
Ministry of Environmental Protection and Agriculture
Germany
Federal Ministry for Environment, Nature Conservation and Nuclear Safety (BMU) with:
Umweltbundesamt (UBA) — the German Environment Agency, which provides scientific support
Federal Agency for Nature Conservation
Bundesamt für kerntechnische Entsorgungssicherheit - the German agency for nuclear safety
Bundesamt für StrahlenschutzFederal Ministry for Food and Agriculture (BMEL) with:
Agency for Renewable Resources
Federal Institute for Risk Assessment
others
Greece
Ministry of the Environment, Energy and Climate Change
Guatemala
Ministry of the Environment and Natural Resources
Honduras
Secretariat of Energy, Natural Resources, Environment and Mines
Hungary
Ministry of Environment (until 2011)
Ministry of Agriculture, responsible for the environment since 2011
Iceland
Ministry for the Environment and Natural Resources
India
Ministry of Environment, Forest and Climate Change
Central Pollution Control Board
Indian Council of Forestry Research and Education
Indian Forest Service
Indonesia
Ministry of Environment and Forestry
Directorate General of Nature Resources and Ecosystem Conservation
Iran
Department of Environment
Ireland
Department of Agriculture, Food and the Marine
Department of the Environment, Climate and Communications
Environmental Protection Agency
Israel
Environmental Protection Ministry
Italy
Ministry of the Environment (Italy)
Japan
Ministry of the Environment
Korea, Republic of (South Korea)
Ministry of Environment
Kuwait
Environment Public Authority
Kyrgyzstan
Ministry of Natural Resources, Environment and Technical supervision
Ministry of Agriculture
Department of Fisheries
Department of Mechanization, Innovative Technologies and Cooperation
Department of Pasture and Breeding Livestock
Plant Quarantine Department
Department of Organic Agriculture
Agricultural Crops Examination Department
Center for Registration and Certification of Veterinary Drugs, Feed and Feed Additives
Department of Chemicals, Protection and Plant Quarantine
"AgroSmart" Digitization and Marketing Center (State Enterprise)
Forest Service
Veterinary Service
Land and Water Control Service
Kyrgyz Agricultural Research Institute
Kyrgyz Research Institute of Animal Husbandry and Pasture
Ministry of Energy
Lithuania
Ministry of Environment
Luxembourg
Department of Environment
Malaysia
Ministry of Natural Resources, Environment and Climate Change
Mexico
Secretariat of Environment and Natural Resources
National Forestry Commission of Mexico
Myanmar
Ministry of Environmental Conservation and Forestry
Netherlands
Ministry of Infrastructure and Water Management
New Zealand
Department of Conservation
Ministry for the Environment
Ministry for Primary Industries
Nicaragua
Ministry of the Environment and Natural Resources
Nigeria
NationalFederal Ministry of Agriculture and Rural Development
Federal Ministry of EnvironmentStatesRivers State Ministry of Environment
Norway
Ministry of Agriculture and Food
Ministry of the Environment
Climate and Pollution Agency
Directorate for Nature Management
Pakistan
Ministry of Environment
Papua New Guinea
Papua New Guinea Conservation & Environment Protection Authority
Peru
Ministry of Environment
Philippines
Department of Environment and Natural Resources
Environmental Management Bureau
Mines and Geosciences Bureau
Land Management Bureau
Forest Management Bureau
Ecosystem Research Development Bureau
Poland
Ministry of Environment
Portugal
Ministry of Environment
Romania
Ministry of Environment and Forests
Russia
Ministry of Agriculture
Federal Service for Veterinary and Phytosanitary Supervision
Federal Agency for Fishery
Ministry of Natural Resources and Environment
Federal Service for Hydrometeorology and Environmental Monitoring
Federal Service for Supervision of Natural Resources
Federal Agency of Water Resources
Federal Agency for Forestry
Federal Agency for Mineral Resources
Saudi Arabia
Ministry of Environment Water and Agriculture (Saudi Arabia)
Singapore
Ministry of Sustainability and the Environment
National Environment Agency
National Parks Board
South Africa
Department of Agriculture, Land Reform & Rural Development
Department of Environment, Forestry & Fisheries
South Korea
Ministry for Food, Agriculture, Forestry and Fisheries
Ministry of Environment
Spain
Ministry for the Ecological Transition and the Demographic Challenge
Ministry of Agriculture, Fisheries and Food
Sri Lanka
Department of Wildlife Conservation, responsible for maintaining national parks, nature reserves and wildlife in wilderness areas
Department of Forest Conservation, for maintenance of forest reserves and wilderness areas
Ministry of Environment, specifically for Mahaweli River area
Sweden
Ministry of the Environment (dissolved in 2022)
Ministry of Innovation (merged with Ministry of the Environment in 2022)Environmental Protection Agency
Swedish Chemicals Agency
Switzerland
Federal Department of Environment, Transport, Energy and Communications
Republic of China (Taiwan)
Ministry of Environment
Tanzania
Ministry of Natural Resources and Tourism
Thailand
Ministry of Natural Resources and Environment (Thailand)
Turkey
Ministry of Energy and Natural Resources
Ministry of Environment, Urbanisation and Climate Change
Ministry of Agriculture and Forestry
Ukraine
Ministry of Ecology
United Kingdom
Department for Environment, Food and Rural Affairs (DEFRA)
England
Environment Agency (protection and regulation)
Forestry Commission
Historic England (monuments and buildings)
Natural England (conservation)
Northern Ireland
Department of Agriculture, Environment and Rural Affairs
Northern Ireland Environment Agency (protection, conservation, and monuments and buildings)
Department of the Environment (Northern Ireland), dissolved 2016
Scotland
Historic Environment Scotland (monuments and buildings)
Scottish Environment Protection Agency (protection and regulation)
Scottish Natural Heritage (conservation)
Wales
Cadw (monuments and buildings)
Natural Resources Wales (environmental protection and conservation)
United States
NationalCouncil on Environmental Quality
United States Department of Agriculture
United States Forest Service
United States Department of Defense
United States Department of Energy
United States Department of the Interior
Bureau of Land Management
National Park Service
United States Fish and Wildlife Service
United States Geological Survey
United States Environmental Protection Agency
Alabama
Alabama Department of Conservation and Natural Resources
Alabama Department of Environmental Management
Alaska
Alaska Department of Natural Resources
Alaska Department of Environmental Conservation
Arizona
Arizona Department of Environmental Quality
Arizona Game and Fish Department
Arkansas
Arkansas Department of Environmental Quality
California
California Environmental Protection Agency
California Department of Pesticide Regulation
California Department of Toxic Substances Control
California Air Resources Board
California Department of Resources Recycling and Recovery
California Natural Resources Agency
California Department of Conservation
California Department of Fish and Game
California Department of Forestry and Fire Protection
California Department of Parks and Recreation
California Department of Water Resources
Colorado
Colorado Department of Natural Resources
Connecticut
Connecticut Department of Energy and Environmental Protection
Delaware
Delaware Department of Natural Resources and Environmental Control
District of Columbia
Department of Energy and Environment
Florida
Florida Department of Environmental Protection
Florida Fish and Wildlife Conservation Commission
Northwest Florida Water Management District
Suwannee River Water Management District
St. Johns River Water Management District
Southwest Florida Water Management District
South Florida Water Management District
Georgia
Georgia Department of Natural Resources
Hawaii
Hawai'i Department of Land and Natural Resources
Idaho
Idaho Department of Environmental Quality
Illinois
Illinois Department of Natural Resources
Illinois Environmental Protection Agency
Indiana
Indiana Department of Environmental Management
Indiana Department of Natural Resources
Iowa
Iowa Department of Natural Resources
Kansas
Kansas Department of Agriculture, Division of Water Resources
Kansas Department of Health and Environment, Division of Environment
Kentucky
Kentucky Department for Natural Resources
Kentucky Department of Environmental Protection
Louisiana
Louisiana Department of Environmental Quality
Louisiana Department of Natural Resources
Maine
Maine Department of Environmental Protection
Maine Department of Agriculture, Conservation and Forestry
Maine Department of Inland Fisheries and Wildlife
Maryland
Maryland Department of Natural Resources
Maryland Department of the Environment
Massachusetts
Massachusetts Executive Office of Energy and Environmental Affairs (EOEEA)
Coastal Zone Management
Water Resources Commission
Massachusetts Environmental Police
Office of Grants and Technical Assistance
Division of Conservation Services
Massachusetts Environmental Trust
Office of Technical Assistance and Technology
Natural Resource Damages Assessment and Restoration
Massachusetts Department of Agricultural Resources
Division of Agricultural Conservation and Tech Assistance
Division of Agricultural Markets
Division of Animal Health
Division of Crop and Pest Services
Massachusetts Department of Conservation and Recreation
Division of State Parks (MassParks)
Division of Water Supply Protection
Massachusetts Department of Energy Resources
Massachusetts Department of Environmental Protection
Massachusetts Department of Fish and Game
Division of Fisheries and Wildlife (MassWildlife)
Division of Marine Fisheries
Division of Ecological Restoration
Office of Fishing and Boating Access
Michigan
Michigan Department of Environmental Quality
Michigan Department of Natural Resources
Minnesota
Minnesota Department of Health
Minnesota Department of Natural Resources
Minnesota Environmental Quality Board
Minnesota Pollution Control Agency
University of Minnesota Extension Service
Mississippi
Mississippi Department of Environmental Quality
Missouri
Missouri Department of Conservation
Missouri Department of Natural Resources
Montana
Montana Department of Natural Resources and Conservation
Nebraska
Nebraska Department of Natural Resources
Nevada
Nevada Department of Conservation and Natural Resources
New Hampshire
New Hampshire Department of Environmental Services
New Jersey
New Jersey Department of Environmental Protection
New Jersey Division of Parks and Forestry
New Mexico
New Mexico Department of Energy, Minerals, and Natural Resources
New Mexico Environment Department
New York
Adirondack Park Agency
Hudson River Valley Greenway
New York City Department of Environmental Protection
New York State Department of Agriculture and Markets
New York State Department of Environmental Conservation
New York State Energy Research and Development Authority
New York State Environmental Facilities Corporation
New York State Office of Parks, Recreation and Historic Preservation
North Carolina
North Carolina Department of Environment and Natural Resources
North Dakota
North Dakota Department of Environmental Quality
Ohio
Ohio Department of Natural Resources
Ohio Environmental Protection Agency
Oklahoma
Oklahoma Department of Environmental Quality
Oregon
Oregon Department of Environmental Quality
Oregon Department of Forestry
Oregon Department of Fish and Wildlife
Oregon Department of Water Resources
Oregon Watershed Enhancement Board
Pennsylvania
Pennsylvania Department of Conservation and Natural Resources
Pennsylvania Department of Environmental Protection
Rhode Island
Rhode Island Department of Environmental Management#The '''Rhode Island Department of Environmental Management (RIDEM)'''
South Carolina
South Carolina Department of Health and Environmental Control
South Carolina Department of Natural Resources
South Dakota
South Dakota Department of Environment and Natural Resources
Tennessee
Tennessee Department of Environment and Conservation
Tennessee Wildlife Resources Agency
Texas
Texas Commission on Environmental Quality
Texas Parks and Wildlife Department
Utah
Utah Department of Environmental Quality
Utah Department of Natural Resources
Utah Department of Natural Resources Division of Forestry,Fire and State LandsUtah Office of Energy Development
Utah Public Lands
Utah Division of Wildlife Resources
Vermont
Vermont Agency of Natural Resources
Vermont Department of Environmental Conservation
Vermont Department of Fish and Wildlife
Vermont Department of Forests, Parks and Recreation
Virginia
Virginia Department of Environmental Quality
Virginia Department of Agriculture and Consumer Services
Virginia Department of Conservation and Recreation
Virginia Department of Forestry
Virginia Department of Wildlife Resources
Washington (state)
Washington State Department of Ecology
Washington State Department of Natural Resources
West Virginia
West Virginia Department of Environmental Protection
West Virginia Division of Forestry
West Virginia Division of Natural Resources
Wisconsin
Wisconsin Department of Natural Resources
Wyoming
Wyoming Department of Environmental Quality
Interstate agencies
Atlantic States Marine Fisheries Commission
Great Lakes Commission
Interstate Commission on the Potomac River Basin
Northwest Power and Conservation Council
Red River Compact Commission
Susquehanna River Basin Commission
Tahoe Regional Planning Agency
Yellowstone River Compact Commission
See also
US Federal environmental agenciesCouncil on Environmental Quality
Department of Agriculture, including the USFS
Department of Defense
Department of Energy
Department of the Interior, including the BLM, Fish and Wildlife Service, National Park Service, USGS
US Environmental Protection Agency
National Oceanic and Atmospheric Administration
National Drought Policy Commission (defunct)
TerritoryPuerto Rico Department of Natural and Environmental Resources
Uruguay
Ministry of Environment
Venezuela
Ministry of Environment and Natural Resources
See also
Environment minister
List of agriculture ministries
List of environmental organizations
List of forestry ministries
List of ministers of the environment
List of ministers of climate change
== References == |
climate-smart agriculture | Climate-smart agriculture (CSA) (or climate resilient agriculture) is an integrated approach to managing land to help adapt agricultural methods, livestock and crops to the effects of climate change and, where possible, counteract it by reducing greenhouse gas emissions from agriculture, while taking into account the growing world population to ensure food security. The emphasis is not simply on carbon farming or sustainable agriculture, but also on increasing agricultural productivity.
CSA has three pillars: increasing agricultural productivity and incomes; adapting and building resilience to climate change; and reducing or removing greenhouse gas emissions from agriculture. There are different actions listed to counter the future challenges for crops and plants. For example, with regard to rising temperatures and heat stress, CSA recommends the production of heat tolerant crop varieties, mulching, water management, shade house, boundary trees, carbon sequestration, and appropriate housing and spacing for cattle. CSA seeks to stabilize crop production while mitigating the adverse impacts of climate change while maximizing food security.There are attempts to mainstream CSA into core government policies, expenditures and planning frameworks. In order for CSA policies to be effective, they must be able to contribute to broader economic growth, the sustainable development goals and poverty reduction. They must also be integrated with disaster risk management strategies, actions, and social safety net programmes.
Components
CSA has three components: increasing agricultural productivity and incomes; adapting and building resilience to climate change; and reducing or removing greenhouse gas emissions from agriculture.
Carbon farming
Carbon farming is one of the components of climate-smart agriculture and aims at reducing or removing greenhouse gas emissions from agriculture. .
Climate-smart agriculture and gender
Men, women, boys, and girls are affected by climate change in different ways. To increase the effectiveness and sustainability of CSA interventions, they must be designed to address gender inequalities and discriminations against people at risk. Gender gap in agriculture implies that men and women farmers have varying access to resources to prepare for and respond to climate change. Women farmers are more prone to climate risk than men are. It has been reported that in developing countries, women have less access compared to men to productive resources, financial capital, and advisory services. They often tend to be excluded from decision making which may impact on their adoption of technologies and practices that could help them adapt to climatic conditions. A gender-responsive approach to CSA tries to identify and address the diverse constraints faced by men and women and recognizes their specific capabilities. Climate-smart agriculture presents opportunities for women in agriculture to engage in sustainable production. There is need to level the field and CSA is an opportunity for women in agriculture to engage more productively.
Methods and assessment
Food and Agriculture Organization
Strategies and methods for CSA should be specific to the local contexts where they are employed. They should include capacity-building for participants in order to offset the higher costs of implementation.
CSA ... is in line with FAO’s vision for Sustainable Food and Agriculture and supports FAO’s goal to make agriculture, forestry and fisheries more productive and more sustainable.
FAO has identified several tools for countries and individuals to assess, monitor and evaluate integral parts of CSA planning and implementation:
Modelling System for Agricultural Impacts of Climate Change (MOSAICC)
Global Livestock Environmental Assessment Model (GLEAM)
Sustainability Assessment of Food and Agriculture (SAFA) system
Economics and Policy Innovations for Climate-Smart Agriculture (EPIC)
Ex-Ante Carbon-balance Tool (EX-ACT)
Climate Risk Management (CRM)
Gender mainstreaming
Monitoring and Assessment of Greenhouse Gas Emissions and Mitigation Potential in Agriculture (MAGHG) project
European Union
The EU has promoted development of climate-smart agriculture and forestry practices as part of the EU Green Deal Policy. Contradictions surrounding practical value of CSA among consumers and suppliers may be the reason why the EU is lagging here compared to other areas of the world. A critical assessment of progress was carried out using different multi-criteria indices covering socio-economic, technical and environmental factors. The results indicated that the most advanced CSA countries within the EU are Austria, Denmark and the Netherlands while Cyprus, Greece and Portugal have the lowest levels of CSA penetration. Key factors included labor productivity, female ownership of farmland, level of education, degree of poverty and social exclusion, energy consumption/efficiency and biomass/crop productivity.
Global initiatives
AIM for Climate
The Agriculture Innovation Mission for Climate (AIM for Climate/AIM4C) is a 5-year initiative to 2025, organized jointly by the UN, US and UAE. The objective is to rally around climate-smart agriculture and food system innovations. It has attracted some 500 government and non-government organizations around the world and about 10 billion USD from governments and 3 billion USD from other sources. The initiative was introduced during COP-26 in Glasgow.
Consultative Group on International Agricultural Research (CGIAR)
The CGIAR as part of the AIM4C summit in May 2023 called for a number of actions:1. Integration of initiatives from the partner organizations
2. Enabling innovative financing
3. Production of radical policy and governance reform based on evidence
4. Promotion of project monitoring, evaluation, and learning
Global Roadmap to 2050 for Food and Agriculture
Several actors are involved in creating pathways towards net-zero emissions in global food systems.Four areas of focus relate to:
1. lowered GHG-emission practices by increasing production efficiency
2. increased sequestration of carbon in croplands and grasslands
3. shifting of human diets away from livestock protein
4. taking on "new-horizon" technologies within the food systems
Livestock production (beef, pork, chicken, sheep and milk) alone accounts for 60% of total global food system GHG emissions. Rice, maize and wheat stand for 25% of the global emissions from food systems.
Challenges
The greatest concern with CSA is that no universally acceptable standard exists against which those who call themselves "climate-smart" are actually acting climate smart. Until those certifications are created and met, skeptics are concerned that big businesses will just continue to use the name to ‘greenwash’ their organizations—or provide a false sense of environmental stewardship. CSA can be seen as a meaningless label that is applicable to virtually anything, and this is deliberate as it is meant to conceal the social, political and environmental implications of the different technology choices.
In 2014 The Guardian reported that climate-smart agriculture had been criticised as a form of greenwashing.
See also
Climate resilience
Effects of climate change on agriculture
Greenhouse gas emissions from agriculture
Agroindustry
Electric tractor
== References == |
ecological design | Ecological design or ecodesign is an approach to designing products and services that gives special consideration to the environmental impacts of a product over its entire lifecycle. Sim Van der Ryn and Stuart Cowan define it as "any form of design that minimizes environmentally destructive impacts by integrating itself with living processes." Ecological design can also be defined as the process of integrating environmental considerations into design and development with the aim of reducing environmental impacts of products through their life cycle.The idea helps connect scattered efforts to address environmental issues in architecture, agriculture, engineering, and ecological restoration, among others. The term was first used by John Button in 1998. Ecological design was originally conceptualized as the “adding in “of environmental factor to the design process, but later turned to the details of eco-design practice, such as product system or individual product or industry as a whole. With the inclusion of life cycle modeling techniques, ecological design was related to the new interdisciplinary subject of industrial ecology.
Overview
As the whole product's life cycle should be regarded in an integrated perspective, representatives from advanced product design, production, marketing, purchasing, and project management should work together on the Ecodesign of a further developed or new product. Together, they have the best chance to predict the holistic effects of changes of the product and their environmental impact. Considerations of ecological design during product development is a proactive approach to eliminate environmental pollution due to product waste.An eco-design product may have a cradle-to-cradle life cycle ensuring zero waste is created in the whole process. By mimicking life cycles in nature, eco-design can serve as a concept to achieve a truly circular economy.
Environmental aspects which ought to be analysed for every stage of the life cycle are:
Consumption of resources (energy, materials, water or land area)
Emissions to air, water, and the ground (our Earth) as being relevant for the environment and human health, including noise emissionsWaste (hazardous waste and other waste defined in environmental legislation) is only an intermediate step and the final emissions to the environment (e.g. methane and leaching from landfills) are inventoried. All consumables, materials and parts used in the life cycle phases are accounted for, and all indirect environmental aspects linked to their production.
The environmental aspects of the phases of the life cycle are evaluated according to their environmental impact on the basis of a number of parameters, such as extent of environmental impact, potential for improvement, or potential of change.
According to this ranking the recommended changes are carried out and reviewed after a certain time.
As the impact of design and the design process has evolved, designers have become more aware of their responsibilities. The design of a product unrelated to its sociological, psychological, or ecological surroundings is no longer possible or acceptable in modern society.With respect to these concepts, online platforms dealing in only Ecodesign products are emerging, with the additional sustainable purpose of eliminating all unnecessary distribution steps between the designer and the final customer.
Another area of ecological design is through designing with urban ecology in mind, similar to conservation biology, but designers take the natural world into account when designing landscapes, buildings. or anything that impacts interactions with wildlife. A such example in architecture is that of green roofs, offices, where these are spaces that nature can interact with the man made environment but also where humans benefit from these design technologies. Another area is with landscape architecture in the creation of natural gardens, and natural landscapes, these allow for natural wildlife to thrive in urban centres.
Ecological design issues and the role of designers
The rise and conceptualization of ecological design
Since the Industrial Revolution, design fields have been criticized for employing unsustainable practices. The architect-designer Victor Papanek (1923-1998) suggested that industrial design has murdered by creating new species of permanent garbage and by choosing materials and processes that pollute the air. Papanek states that the designer-planner shares responsibility for nearly all of our products and tools, and hence, nearly all of our environmental mistakes. To address these issues, R. Buckminster Fuller (1895-1983) demonstrated how design could play a central role in identifying and addressing major world problems. Fuller was concerned with the Earth's finite energy resources and natural resources, and how to integrate machine tools into efficient systems of industrial production. He promoted the principle of "ephemeralization", a term he coined himself to do "more with less" and increase technological efficiency. This concept is key in ecological design that works towards sustainability. In 1986, the design theorist Clive Dilnot argued that design must once again become a means of ordering the world rather than merely of shaping products.Despite rising ecological awareness in the 20th century, unsustainable design practices continued. The1992 conference "The Agenda 21: The Earth Summit Strategy to Save Our Planet” put forward a proposition that the world is on a path of energy production and consumption that cannot be sustained. The report drew attention to individuals and groups around the world who have a set of principles to develop strategies for change among many aspects of society, including design. More broadly, the conference emphasized that designers must address human issues. These problems included six items: quality of life, efficient use of natural resources, protecting the global commons, managing human settlements, the use of chemicals and the management of human industrial waste, and fostering sustainable economic growth on a global scale.Though Western society has only recently espoused ecological design principles, indigenous peoples have long coexisted with the environment. Scholars have discussed the importance of acknowledging and learning from Indigenous peoples and cultures to move towards a more sustainable society. Indigenous knowledge is valuable in ecological design as well as other ecological realms such as restoration ecology.
Sustainable development issues
These concepts of design tie into the concept of sustainable development. The three pillars addressed in sustainable development are: ecological integrity, social equity, and economic security. Gould and Lewis argue in their book Green Gentrification that urban redevelopment and projects have neglected the social equity pillar, resulting in development that focuses on profit and deepens social inequality. One result of this is green or environmental gentrification. This process is often the result of good intentions to clean up an area and provide green amenities, but without setting protections in place for existing residents to ensure they are not forced out by increased property values and influxes of new wealthier residents.
Unhoused persons are one particularly vulnerable affected population of environmental gentrification. Government environmental planning agendas related to green spaces may lead to the displacement and exclusion of unhoused individuals, under a guise of pro-environmental ethics. One example of this type of design is hostile architecture in urban parks. Park benches designed with metal arched bars to prevent a person from laying on the bench restricts who benefits from green space and ecological design.
Life Cycle Analysis
Life Cycle Analysis (LCA) is a tool used to understand the how a product impacts the environment at each stage of its life cycle, from raw input to the end of the products' life cycle. Life Cycle Cost (LCC) is an economic metric that "identifies the minimum cost for each life cycle stage which would be presented in the aspects of material, procedures, usage, end-of-life and transportation." LCA and LCC can be used to identify particular aspects of a product that is particularly environmentally damaging & reduce those impacts. For example, LCA might reveal that the fabrication stage of a product's life cycle is particularly harmful for the environment and switching to a different material can drive emissions down. However, switching material may increase environmental effects later in a products life time; LCA takes into account the whole life cycle of a product and can alert designers to the many impacts of a product, which is why LCA is important.
Some of the factors that LCA takes into account are the costs and emissions of:
Transportation
Materials
Production
Usage
End-of-lifeEnd-of-life, or disposal, is an important aspect of LCA as waste management is a global issue, with trash found everywhere around the world from the ocean to within organisms. A framework was developed to assess sustainability of waste sites titled EcoSWaD, Ecological Sustainability of Waste Disposal Sites. The model focuses on five major concerns: (1) location suitability, (2) operational sustainability, (3) environmental sustainability, (4) socioeconomic sustainability, and (5) site capacity sustainability. This framework was developed in 2021, as such most established waste disposal sites do not take these factors into consideration. Waste facilities such as dumps and incinerators are disproportionately placed in areas with low education and income levels, burdening these vulnerable populations with pollution and exposure to hazardous materials. For example, legislation in the United States, such as the Cerrell Report, has encouraged these types of classist and racist processes for siting incinerators. Internationally, there has been a global 'race to the bottom' in which polluting industries move to areas with fewer restrictions and regulations on emissions, usually in developing countries, disproportionately exposing vulnerable and impoverished populations to environmental threats. These factors make LCA and sustainable waste sites important on a global scale.
Urban Ecological Design
Related to ecological urbanism, Urban Ecological Design integrates aesthetic, social, and ecological concerns into an urban design framework that seeks to increase ecological functioning, sustainably generate & consume resources, and create resilient built environments & the infrastructure to maintain them. Urban ecological design is inherently interdisciplinary: it integrates multiple academic and professional fields including environmental studies, sociology, justice studies, urban ecology, landscape ecology, urban planning, architecture, and landscape architecture. Urban ecological design aims to solve issues related to multiple large-scale trends including the growth of urban areas, climate change, and biodiversity loss. Urban ecological design has been described as a "process model" contrasted to a normative approach that outlines principles of design. Urban ecological design blends a multitude of frameworks & approaches to create solutions to these issues by improving Urban resilience, sustainable use & management of resources, and integrating ecological processes into the urban landscape.
Applications in design
EcoMaterials, such as the use of local raw materials, are less costly and reduce the environmental costs of shipping, fuel consumption, and CO₂ emissions generated from transportation. Certified green building materials, such as wood from sustainably managed forest plantations, with accreditations from companies such as the Forest Stewardship Council (FSC), or the Pan-European Forest Certification Council (PEFCC), can be used.
Several other types of components and materials can be used in sustainable objects and buildings. Recyclable and recycled materials are commonly used in construction, but it is important that they don't generate any waste during manufacture or after their life cycle ends. Reclaimed materials such as timber at a construction site or junkyard can be given a second life by reusing them as support beams in a new building or as furniture. Stones from an excavation can be used in a retaining wall. The reuse of these items means that less energy is consumed in making new products and a new natural aesthetic quality is achieved.
Architecture
Off-grid homes only use clean electric power. They are completely separated and disconnected from the conventional electricity grid and receive their power supply by harnessing active or passive energy systems. Off-grid homes are also not served by other publicly or privately managed utilities, such as water and gas in addition to electricity.
Art
Increased applications of ecological design have gone along with the rise of environmental art. Recycling has been used in art since the early part of the 20th century, when cubist artist Pablo Picasso (1881–1973) and Georges Braque (1882–1963) created collages from newsprints, packaging and other found materials. Contemporary artists have also embraced sustainability, both in materials and artistic content. One modern artist who embraces the reuse of materials is Bob Johnson, creator of River Cubes. Johnson promotes "artful trash management" by creating sculptures from garbage and scraps found in rivers. Garbage is collected, then compressed into a cube that represents the place and people it came from.
Clothing
There are some clothing companies that are using several ecological design methods to change the future of the textile industry into a more environmentally friendly one. Some approaches include recycling used clothing to minimize the use of raw resources, using biodegradable textile materials to reduce the lasting impact on the environment, and using plant dyes instead of poisonous chemicals to improve the appearance and impact of fabric.
Decorating
The same principle can be used inside the home, where found objects are now displayed with pride and collecting certain objects and materials to furnish a home is now admired rather than looked down upon. Take for example the electric wire reel reused as a center table.
There is a huge demand in Western countries to decorate homes in a "green" style. A lot of effort is placed into recycled product design and the creation of a natural look. This ideal is also a part of developing countries, although their use of recycled and natural products is often based in necessity and wanting to get maximum use out of materials. The focus on self-regulation and personal lifestyle changes (including decorating as well as clothing and other consumer choices) has shifted questions of social responsibility away from government and corporations and onto the individual.Biophilic design is a concept used within the building industry to increase occupant connectivity to the natural environment through the use of direct nature, indirect nature, and space and place conditions.
Active system
These systems use the principle of harnessing the power generated from renewable and inexhaustible sources of energy, for example; solar, wind, thermal, biomass, geothermal, and hydropower energy.
Solar power is a widely known and used renewable energy source. An increase in technology has allowed solar power to be used in a wide variety of applications. Two types of solar panels generate heat into electricity. Thermal solar panels reduce or eliminate the consumption of gas and diesel, and reduce CO₂ emissions. Photovoltaic panels convert solar radiation into an electric current which can power any appliance. This is a more complex technology and is generally more expensive to manufacture than thermal panels.
Biomass is the energy source created from organic materials generated through a forced or spontaneous biological process.
Geothermal energy is obtained by harnessing heat from the ground. This type of energy can be used to heat and cool homes. It eliminates dependence on external energy and generates minimum waste. It is also hidden from view as it is placed underground, making it more aesthetically pleasing and easier to incorporate in a design.
Wind turbines are a useful application for areas without immediate conventional power sources, e.g., rural areas with schools and hospitals that need more power. Wind turbines can provide up to 30% of the energy consumed by a household but they are subject to regulations and technical specifications, such as the maximum distance at which the facility is located from the place of consumption and the power required and permitted for each property.
Water recycling systems such as rainwater tanks that harvest water for multiple purposes. Reusing grey water generated by households are a useful way of not wasting drinking water.
Hydropower, also known as water power, is the use of falling or fast-running water to produce electricity or to power machines. Hydropower is an attractive alternative to fossil fuels as it does not directly produce carbon dioxide or other atmospheric pollutants and it provides a relatively consistent source of power.
Passive systems
Buildings that integrate passive energy systems (bioclimatic buildings) are heated using non-mechanical methods, thereby optimizing natural resources.
Passive daylighting involves the positioning and location of a building to allow for and make use of sunlight throughout the whole year. By using the sun's rays, thermal mass is stored in the building materials such as concrete and can generate enough heat for a room.
Green roofs are roofs that are partially or completely covered with plants or other vegetation. Green roofs are passive systems in that they create insulation that helps regulate the building's temperature. They also retain water, providing a water recycling system, and can provide soundproofing.
History
1971 Ian McHarg, in his book "Design with Nature", popularized a system of analyzing the layers of a site in order to compile a complete understanding of the qualitative attributes of a place. McHarg gave every qualitative aspect of the site a layer, such as the history, hydrology, topography, vegetation, etc. This system became the foundation of today's Geographic Information Systems (GIS), a ubiquitous tool used in the practice of ecological landscape design.
1978 Permaculture. Bill Mollison and David Holmgren coin the phrase for a system of designing regenerative human ecosystems. (Founded in the work of Fukuoka, Yeoman, Smith, etc..
1994 David Orr, in his book "Earth in Mind: On Education, Environment, and the Human Prospect", compiled a series of essays on "ecolgocial design intelligence" and its power to create healthy, durable, resilient, just, and prosperous communities.
1994 Canadian biologists John Todd and Nancy Jack Todd, in their book "From Eco-Cities to Living Machines" describe the precepts of ecological design.
2000 Ecosa Institute begins offering an Ecological Design Certificate, teaching designers to design with nature.
2004 Fritjof Capra, in his book "The Hidden Connections: A Science for Sustainable Living", wrote this primer on the science of living systems and considers the application of new thinking by life scientists to our understanding of social organization.
2004 K. Ausebel compiled compelling personal stories of the world's most innovative ecological designers in "Nature's Operating Instructions."
Ecodesign research
Ecodesign research focuses primarily on barriers to implementation, ecodesign tools and methods, and the intersection of ecodesign with other research disciplines. Several review articles provide an overview of the evolution and current state of ecodesign research.
See also
Notes and references
Bibliography
Lacoste, R., Robiolle, M., Vital, X., (2011), "Ecodesign of electronic devices", DUNOD, France
McAloone, T. C. & Bey, N. (2009), Environmental improvement through product development - a guide, Danish EPA, Copenhagen Denmark, ISBN 978-87-7052-950-1, 46 pages
Lindahl, M.: Designer's utilization of DfE methods. Proceedings of the 1st International Workshop on "Sustainable Consumption", 2003. Tokyo, Japan, The Society of Non-Traditional Technology (SNTT) and Research Center for Life Cycle Assessment (AIST).
Wimmer W., Züst R., Lee K.-M. (2004): Ecodesign Implementation – A Systematic Guidance on Integrating Environmental Considerations into Product Development, Dordrecht, Springer
Charter, M./ Tischner, U. (2001): Sustainable Solutions. Developing Products and Services for the Future. Sheffield: Greenleaf
ISO TC 207/WG3
ISO TR 14062
The Journal of Design History: Environmental conscious design and inverse manufacturing,2005. Eco Design 2005, 4th International Symposium
The Design Journal: Vol 13, Number 1, March 2010 - Design is the problem: The future of Design must be sustainable, N. Shedroff.
"Eco Deco", S. Walton
"Small ECO Houses - Living Green in Style", C. Paredes Benitez, A. Sanchez Vidiella
Further reading
From Bauhaus to Ecohouse: A History of Ecological Design. By Peder Anker, Published by Louisiana State University Press, 2010. ISBN 0-8071-3551-8.
Ecological Design. By Sim Van der Ryn, Stuart Cowan, Published by Island Press, 2007. ISBN 978-1-59726-141-8 (2nd ed., 1st, 1996)
Ignorance and Surprise: Science, Society, and Ecological Design. By Matthias Gross, Published by MIT Press, 2010. ISBN 0-262-01348-7
External links
Sustainable Design & Development Resource Guide
The European Commission's website on Ecodesign activities and related legislation including minimum requirements for energy using products
The European Commission's Directory of LCA and Ecodesign services, tools and databases
The European Commission's ELCD core database with Ecoprofiles (free of charge)
Environmental Effect Analysis (EEA) – Principles and structure
EIME, the ecodesign methodology of the electrical and electronic industry
4E, IEA Implementing Agreement on Efficient Electrical End-Use Equipment |
women in agriculture in india | India has an economy bound to its historical agricultural tradition. In the North, the Indus valley and Brahmaputra region are critical agricultural areas with water supplied by the Ganges and monsoon season. Agriculture is a way of life for the majority of India's population; based on 2011 World Bank data, only 17.5% of India's gross domestic product (GDP) is accounted for by agricultural production. Women are an important but often overlooked population involved in India's agricultural production—they represent the majority of the agricultural labor force in India. Women's participation in the agrarian labor force plays out in various ways, impacting their economic independence, their decision-making abilities, their agency and access to education and health services. Many women in farming communities suffer poverty and marginalization, and issues of gender inequality.
Indian agriculture
Based on 2012 data, India is home to the fourth-largest agricultural sector in the world. India has an estimated 180 million hectares of farmland with 140 million of which are planted and continuously cultivated. Yet India's agricultural profile is shadowed by the controversial impacts of Green Revolution policies that were adopted in the 1960s and 70s with pressure from the United States Agency for International Development and the World Bank.
The Green Revolution brought a modern approach to agriculture by incorporating irrigation systems, genetically modified seed variations, insecticide and pesticide usage, and numerous land reforms. It had an explosive impact, providing unprecedented agricultural productivity in India and turned the country from a food importer to an exporter. Yet the Green Revolution also caused agricultural prices to drop, which damaged India's small farmers. Over the years, Green Revolution technology has caused decreases in agricultural yields. This problem was particularly grave for smallholder farmers, because intensification of synthetic inputs and more advanced agricultural technology is required from year to year in order to maintain the same high levels of production on the same plot of land. Small holder farmers cultivate less than 2 hectares of lands; the majority of all Indian farmers are smallholders and produce the majority of India’s produce. Smallholder farmers face the largest negative impact from green revolution technology–the synthetic inputs have adversely impacted their soil, decreasing yields. Due to the smaller scales of their operations, they are unable to afford more synthetic inputs to compensate for poor soil quality caused by the initial introduction of off-farm inputs. This leads to a “treadmill of technology dependence,” which continues to speed up as soil health declines. In addition to the financial issue, there are also the environmental impacts of the Green revolution which all farmers, big and small, must contend with. Intensification of synthetic fertilizer and pesticide inputs leads to a loss in biodiversity which continues to degrade the environmental quality of cultivated land. Groundwater depletion, soil health decline, a loss of crop genetic diversity all make the created environment continually more inhospitable to introduced crop varieties that have not had the advantage of years of evolution to make them best suited to the changing conditions.India's agricultural sector today still faces issues of efficiency due to lack of mechanization with poorer conditions of farmers, as well as small farm sizes. In India, traditional agriculture is still dominant as many farmers depend on livestock in crop production, for manure as fertilizers, and the use of animal-powered ploughs. According to 2011 statistics, the average farm in India is about 1.5 acres, minuscule when compared the average of 50 hectares in France and or 178 hectares in United States and 273 hectares in Canada.The small farmer tradition of India can be drawn back to the first farm reforms of independent India. Known as the Laws of Divided Inheritance, the reforms were meant to limit the conglomeration of land, by mandating redistribution as land was divided among male inheritors from the prior generation. The perpetuation of these laws not only limits farm size but also bars women from ownership or inheritance. Furthermore, as small farmers face increasing competition with larger farm operations an increasing number of men migrate to city centers for higher wages and employment. Women are in turn left to support the family structure and support small farm lifestyle. In 2011, the agricultural sector workforce in the subcontinent was 75% women.
Feminization of Indian agriculture
With the advent of The Green Revolution, and then liberalization, male labor was increasingly drawn towards urban centers, leading to an increased number of women involved in agricultural labor.
A statistical profile
In rural India, the percentage of women who depend on agriculture for their livelihood is as high as 84%. Women make up about 33% of cultivators and about 47% percent of agricultural labourers. These statistics do not account for work in livestock, fisheries and various other ancillary forms of food production in the country. In 2009, 94% of the female agricultural labour force in crop cultivation were in cereal production, while 1.4% worked in vegetable production, and 3.72% were engaged in fruits, nuts, beverages, and spice crops.Women's participation rate in the agricultural sectors is about 47% in tea plantations, 46.84% in cotton cultivation, 45.43% growing oil seeds and 39.13% in vegetable production.
While these crops require labor-intensive work, the work is considered quite unskilled. Women also heavily participate in ancillary agricultural activities. According to the Food and Agriculture Organization, Indian women represented a share of 21% and 24% of all fishers and fish farmers, respectively.
Despite their dominance of the labor force women in India still face extreme disadvantage in terms of pay, land rights, and representation in local farmers organizations. Furthermore, their lack of empowerment often results in negative externalities such as lower educational attainment for their children and poor familial health.
Gendered division of agrarian labor
In India, the typical work of the female agricultural laborer or cultivator is limited to less skilled jobs, such as sowing, transplanting, weeding and harvesting, that often fit well within the framework of domestic life and child-rearing. In cotton seed production, they are engaged in pollination activity which requires patience and a little bit of precision. Many women also participate in agricultural work as unpaid subsistence labor. According to United Nations Human Development Report only 32.8% of Indian women formally participate in the labor force, a rate that has remained steady since 2009 statistics. By comparison, men constitute 81.1%.
Literacy among women in farming communities
An estimated 52–75% of Indian women engaged in agriculture are illiterate, an education barrier that prevents women from participating in more skilled labor sectors. Women generally face low access to agricultural information that is generated outside their own families. This is primarily due to lower rates of literacy and a lack of mobility–but women will readily disperse information to women of other households, even other villages. Some district governments in Karnataka are looking into establishing self-help groups for women to create larger social networks through which women may disseminate information about agricultural practices, circumventing the low literacy rates. In all activities, there is an average gender wage disparity, with women earning only 70 percent of men's wage.
Additionally, many women participate in agricultural work as unpaid subsistence labor. The lack of employment mobility and education render the majority of women in India vulnerable, as dependents on the growth and stability of the agricultural market.
Arranged marriages and caste
In rural India, women's role in the household is greatly defined by social structure and familial ties. Arranged marriages specific to each caste system, determine their economic worth, and are expected early on in a woman's life. Depending on caste and economic class a woman's role can be determined as one of more in the public eye or predominantly of seclusion; a life in which women are expected to care for children and maintain the household. The typical rural Indian household is a patriarchal and partilocal one, in which a husband, or in his stead the oldest son will make the decisions for a family.
Time allocation
In addition to rigorous agricultural work that is undervalued and underpaid, women are also responsible for the well-being of the household. They care for their children, provide nutrition or usually take part in subsistence agriculture, and do chores around the house. Based on time allocation studies, which pinpoint exactly how a woman's hours are spent throughout the week, Indian women spend about 25 hours in a week doing household chores and five hours in caring and community work.Besides the 30 hours of unpaid work, women spend the same amount of time as men carrying out agricultural work. Daughters typically supplement or substitute for mother's unpaid work around the household. Considered female tasks, the opportunity cost of girls' time for school is higher than that of sons. Girls do significantly more housework than boys, which compromises their schooling.
While some studies in Orissa suggest that organic farming could increase the amount of labor and time spent on agricultural duties for women, more research needs to be done to expand conclusions across India.
Access to land and resources
Critical resources such as land are also unevenly distributed by gender. Women seldom enjoy property ownership rights directly in their names. They have little control over decisions made in reference to land. Even with land in their names, they may not have actual decision-making power in terms of cropping patterns, sale, mortgage and the purchase of land. In India, only 14.9% of households are female headed. Access to credit is difficult, since women lack many of the prerequisites for lending such as assets or ownership of property. Without access to capital or household decision making abilities women lack the resources that are necessary for their labor stability and stability of their households.Furthermore, without access to support from the National Bank for Agriculture and Rural Development, banks, and cooperative societies, women are excluded from information that would make their production more competitive in the agricultural markets. The traditional systematic denial of women as key producers in India's agriculture causes them to often be overlooked in the research and study, thus further entrenching the exclusion of women in roles of agency. According to Amartya Sen, and Martha Nussbaum’s Capability Approach, equality in access is critical step to economic empowerment to create gender equality. In conjunction, the early access to education and health services is critical to the capabilities and self-actualization of girls. The attainment of these necessary life structures is determined by cultural norms as well as the economic standing of the family.
Land ownership opportunities also have a critical impact on human development with freedom from violence. According to a 2005 study of marital violence and property ownership, 49% of propertyless women experience physical violence and 84% experienced psychological abuse. Ownership rights saw a drastic decrease in violence. Among women who owned both land and house there was only 7% physical violence and 16% psychological abuse.
Women farmers and the environment
Extreme climatic changes are among the factors that have begun to jeopardize agricultural production globally. India's agricultural sector which depends greatly on the variations in climate and weather is defined mainly by the monsoon season. The appropriate levels of precipitation that last from June to September, predicate a bountiful agricultural yield later on in the year. Monsoon seasons with insufficient or excessive precipitation, hurts the agricultural sector. Increasing temperatures and erratic precipitation has begun to exhaust agricultural land and create high variations of land. In the past couple of years, these trends have made a noticeable impact in India, causing droughts and unpredictable rainfall. Just one season of such weather patterns can be devastating to the livelihood of farmers, who can find no resilience in small farms.The loss of biodiversity in India and specifically food crops is a serious concern of food security and sustainability of the agricultural sector in India. The connection between women farmers and environmental health is not simply for subsistence and survival. It also stems from a long-existing cultural valuation of India's agricultural fertility in ritual and practice. Women's connection to land is reflected in their almanac-like knowledge of plant varieties. Rituals and ceremonies in various parts of the country show this close relationship. There is Lohri, the harvest festival of Punjab or navadhanya puja, which translates to the worship of nine cereals, celebrations that take place in southern India. Both ceremonies celebrate the role of women in agriculture and fertility and importance of environment and biodiversity.Furthermore, traditional agricultural methods heavily utilized by women subsistence farmers boast environmentally friendly features, such as seed preservation, natural fertilizers and crop rotation techniques that do not exhaust delicate soil. In the wake of Green Revolution's reforms, it is clear that many of the high yield recommendations had severe environmental impacts.
The negative environmental impacts of the Green Revolution are barely beginning to show their full affect. The widespread chemical pollution in communities that utilize pesticides and herbicides is creating a public health problem, which has disproportionately impacted women.In the state of Punjab, which was touted as a success of Green Revolution, cancer rates have skyrocketed. A 2008 study by Punjabi University a high rate of genetic damage among farmers, which was attributed to pesticide use. Ignorance on the appropriate use of pesticides, resulting in the heavy use, improper disposal, the use of pesticides as kitchen containers, and contamination of drinking water with heavy metals are contributing factors. In reaction to the health and monetary costs of inorganic farming many women are turning to organic farming practices. On a micro level women are organizing into collectives to exchange knowledge, organize organic seed sharing, to pursue organic and sustainable agricultural practices.
Cooperatives
Cooperatives have been long seen as a social institution providing partnership, solidarity and resources to women farmers as well as tackle gender inequality. In India they have had quite a success. In many instances in which women are barred from participation, women only cooperatives are critical in empowering and educating. Yet female participation in cooperatives is still relatively low and some argue because men are still seen as primarily in charge of agriculture and income generation. Only 7.5% of women participate in cooperatives as compared to 92.5% of men. Of India's 450,000 cooperatives with a membership of 204.5 million, there are only 8,171 women cooperatives with a total membership of 693,000 women.Despite that, women-only cooperatives, which include cooperative banks, stores, food vendors, have done quite well and provided a whole range of services to their members. In India, with a view to involve women in the process of decision-making in local self-governing bodies including cooperatives, a 33% representation has been instituted and in a number of states all boards of directors have women serving on them. International organizations such as the Self-Employed Women's Association (SEWA) have been working quite successfully in India with partners to form a membership of 1.24 million women in India. Fifty-four percent of members are agricultural workers.
India-EU Free Trade Agreement
Since 2007, India and the European Union have been in negotiation over a free trade agreement between the two bodies.
It is an extension of the neoliberal policies posed by the International Monetary Fund and World Bank as developmentally advantageous to India. However, in the long run it is predicted that the EU-India FTA will not bring gains to the agricultural sector of India. Rather it is predicted by a study conducted by the Centre for Trade and Development in 2009, that the EU will benefit at the expense of the small Indian agricultural laborers and farmers. It is predicted there will be a small increase in agricultural exports that will be dwarfed by larger increase in agricultural imports. In addition, agricultural employment will decline in India. Furthermore, there is concern about the social impacts of opening up of the Indian market to European Unions agricultural goods such as general and specialty food crops.The Free Trade Agreement may lead to increased imports of the products that women are typically involved in, such as cereal production, tea or coffee, confections, and oil seeds. With the EU's competitive advantage this will hurt a number of women farmers and laborers that are employed in these sectors. For example, EU dairy products, a heavily protected industry in the EU, will most likely enter Indian markets competing with smaller animal husbandry production methods specifically attached to women. Competition may threaten women's and their families’ livelihoods and create problems of food security and deepen gender inequality by stifling the expansion of capabilities for girls and women. Agro processing, the creation of cereals and grains mixtures, in India is a large employer of women workers and strong competition can adversely affect them. In addition, since the EU has considerably lower tariffs than those in India, the FTA will induce a loss of tariff revenue in India, which will have to reduce tariffs. This will bring about a loss of revenue source generally used by the government on social spending.The FTA, as insisted by the EU, will also remove export restrictions and increase the liberalization of investment in agriculture in India. This does not bode well for smaller Indian agricultural production industries that have thus far been insulated from such rough competition for resources. As foreign investors begin to vye for power over agricultural or natural resources in India, women's access to resources and decision-making abilities will be further threatened. Women who do agricultural work for subsistence will be at risk of losing the basic resources such as water, seeds and other natural resources used to feed their families.The Free Trade Agreement is still under negotiations. Since initial discussion of the free trade agreement, there has been a major public outcry due to problems, besides those agricultural cited above, that are predicted to arise. In April 2013, Germany supported the free trade agreement. Progress on the FTA has been delayed due to EU demands that India open its markets further. Europe currently waits on India to raise its cap on "FDI by foreign insurance companies from 26 to 49 per cent" and also decrease import duties for luxury items such as cars, wine and spirits.
See also
== References == |
coal mining in brazil | Coal mining in Brazil is the country's largest source of non-renewable energy, and is an important part of Brazil's energy economy. Brazil is the tenth largest energy consumer and the third largest in the Western Hemisphere. Coal accounts for approximately 5.8 percent of the country's total primary energy supply. It is the country's largest source of non-renewable energy (50 percent), followed by nuclear energy (27 percent), petroleum (eight percent), and natural gas (2.5 percent). Brazil produces about 6 million tons of coal per year, and total coal reserves are estimated at approximately 32.3 billion tons. It is also important in reducing reliance on imported oil and gas.Brazil's coal-mining region is located in the southern part of the country, and the reserves are distributed among the states of Paraná (1 percent), Santa Catarina (46 percent), and Rio Grande do Sul (53 percent). The southernmost state of Rio Grande do Sul has majority of the coal reserves, but Santa Catarina is the largest producer of coal. The total Brazilian coal production in 2007 was 12,144,564 short tons, with the state of Santa Catarina producing 7,228,895 of those. The coal mining industry is of tremendous importance to these regions given the rapid expansion of Brazil's national economy. It is also important in reducing reliance on hydropower from other regions.
While the coal mining industry helped spur the regional economies in southern Brazil, in turn impacting their respective societies, but this has come at a high price. Severe environmental degradation has resulted from poor mining practices, improper waste disposal, poor regulation, and lack of research. In the state of Santa Catarina alone, 3.5 million tons of coal are rejected annually and disposed of in landfills. This is more than half of Santa Catarina's total annual coal extraction. The environmental problems have also translated into adverse effects for the mineworkers and those living in surrounding areas. A number of health, social, economic, and political concerns have arisen as a result of the mining industry. The Brazilian federal government even declared the state of Santa Catarina a site of environmental concern.
History
Coal was discovered in the southern region of Brazil in 1822, and in the city of Lauro Müller in the state of Santa Catarina, Brazil in 1827 by an English company. The industry was underdeveloped until the middle of the 20th century, however, because the coal was of poor quality and expensive to transport domestically. Therefore, higher quality and cheaper coal was imported from England and Germany.
Environmental impact
Coal mining activity has a large impact on the environment, especially in the areas directly surrounding the mines. These environmental problems are the result of over 120 years of unregulated mining activity, lack of accountability and enforcement in regards to waste disposal, lack of knowledge, and different economic priorities. Since the first boom coal exploration in the mid-20th century, immediate and long-term physical, chemical, and biological changes in local ecosystems have resulted. (Zocche, et al. 2010)
One of the biggest environmental threats related to coal mining is posed by waste disposal. Brazilian coal is characterized by high sulfide contents, pyrite and marcasite. The waste contains a broad array of elements including metals such as copper, cobalt, mercury, arsenic, and zinc among others. The contact of this waste material with air and water results in acid mine drainage (AMD), which can be detrimental to terrestrial and aquatic ecosystems. Intense rains contribute to the seepage of waste deposits into the groundwater supply, generating and carrying the acid drainage from abandoned mines into the nearby rivers and streams. It increases turbidity and siltation, which in turn affects the food supply for the organisms in the affected areas. Seriously polluted sites may be environmentally hazardous despite the natural capacity of soils to reduce the solubility and bioavailability of toxic metals. Despite this capacity, environmental risks may persist at seriously polluted sites, including those that were abandoned decades ago. This is of relevance considering the 1000 abandoned mines in the state of Santa Catarina alone.Waste disposal is the principal cause of water pollution in the state of Santa Catarina. Coal strip mining methods and the surface disposal of waste rock results in the contamination of surface and ground waters. The Tuburão, Urussanga, and Araranguá Rivers in the state of Santa Catarina comprise the state's coal basin where there are 134 strip mine sites, 115 waste deposit areas, 77 sites with acidic pools, and hundreds of mines, and thus receive the majority of the waste generated. Coal drainage from each of these locations is responsible for high levels of water contamination. The resulting acidic streams affect local vegetation and prevent re-vegetation of affected areas.Polluted water sources also means that the plants and sediments within them are contaminated. Organisms that feed off of these elements as well as terrestrial animals that are higher up in the food chain may accumulate toxic levels in their tissues. Open mines may fill with water and become lakes, and the toxic levels of heavy metals are thus transmitted to animals that drink and eat from the water source. Accumulation of these elements may also destroy the physical habitat by encrusting streambeds and aquatic plants.Soil degradation is another concern. Coal mining changes the morphology of the land and requires deforestation and vegetation removal. This, combined with improper waste disposal, increased erosion and instability of river and stream slopes, and the opening of caves, is responsible for soil degradation. In addition, thousands of hectares of land are now infertile and unusable for agriculture and other farming activities.Improper management of chemicals used in the mining process has led to incidences of spontaneous combustion, thus contributing to air pollution. The extraction and transportation of coal also causes atmospheric pollution. Coal fires from poor mining practices release fly ash, greenhouse gases, and toxic chemicals into the atmosphere, the results of which may be long lasting considering that these fires may burn for decades. Mining also releases coalmine methane, a greenhouse gas twenty times more powerful than carbon dioxide.
Impact on humans
Coal mining activity has a negative impact on the health of both workers and the people in communities close to the mines. Chronic inhalation of coal dust has been linked to increased incidences of oxidative stress conditions that may result in lung damage; potentially toxic accumulation of metals in body tissues; diseases like pneumoconiosis (black lung disease), bronchitis, emphysema, fibrosis, and cancer; generation of proinflammatory factors; premature aging; prooxidant and antioxidant alterations that lead to cellular damage; cardiopulmonary disease; hypertension; skin lesions; and other lung and kidney diseases. Coal fires emit toxic levels of arsenic, fluorine, mercury, and selenium, which enter the local food chain via contamination of the air and water supplies. High concentrations of various trace elements like copper, uranium, nickel, and arsenic have been found in local water supplies, which could lead to serious health effects for people in the area.In the city of Lauro Müller in the state of Santa Catarina, studies show that respiratory diseases are responsible for an estimated thirty percent of medical procedures, and four percent were related to various forms of cancer. Higher incidences of metal-related cancer have been found among coal mine workers.Subsidence is another problem posed by coal extraction. The “pillar” extraction mode was used until the 1990s. This method leaves behind pillars of coal to support the root of the mine. The mined-out areas frequently cave in, however, which may cause the foundations of houses above the mines to crack and leave fractures, and therefore render useless, areas often used for plowing.Coal mining also has a number of social and cultural impacts on the communities in the surrounding area. Societies and cultures have been displaced, which has resulted in the loss of traditional practices and other forms of cultural capital. Contaminated air and water supplies forces many to migrate in order to avoid the health consequences. The extraction of the coal through the pillar method often results in mine collapses, which are responsible for the deaths and injuries of hundreds of workers every year. Closure of a mining site results in job loss, which could in turn lead to immigration in search of new job opportunities, cultural disturbance, and social instability.
Local economies are also affected. Wealth disparities result due to the lack of income in these single resource dependent regions. Coal-related activities affect the quality of land and water in surrounding areas, compromising large portions of needed land such as that in the watershed basin in southern Santa Catarina State. Thousands of families in the communities of the coastal ecosystem of the Laguna area depend on fisheries and other oceanic resources, but the marine ecosystem has been degraded by mining and other industrial activities.The storage of waste materials near urban and suburban areas may also cause a number of other problems for nearby populations, including bad odors, property devaluation, loss of crops, loss of land for recreation and leisure, and health related expenses.
Government
The Brazilian government has historically implemented legislation to address the environmental concerns related to coal mining activities. In 1980, for example, the Santa Catarina Coal Region was designated a “Critical National Area for Pollution Control and Environmental Conservation,” an early indication of effort on behalf of the government to recognize the problems in the region. The Federal Attorney General filed suit against the federal and state governments and coal companies in 1993, demanding the termination of environmental degradation by the active mines in the region and the environmental recovery of affected areas.Legal framework also exists to pressure companies to assume responsibility for the environmental impacts of coal industry activities. The National Environmental Act of 1981 allowed for the creation of several government organizations in charge of evaluating the impact of practices potentially harmful to the environment and local communities. It allowed each state and municipality to establish its own environmental regulation system. It also introduced the idea of environmental impact assessment into Brazilian environmental legislation. The Brazilian Constitution (as of 1988) upheld this by obliging mining companies “to reclaim the degraded environment, in accordance with the technical solution demanded by the competent public organization” by repairing environmental damages caused by their activity. They are required to maintain water quality within legal limits and are bound by these requirements even after the closure of the mine.
The federal court has taken action to uphold this provision. In 2000, a federal judge in Criciúma, Santa Catarina, ordered the establishment of a three-year recovery project by government-run companies that encompasses damages caused by coal mining activities in the state's entire coal region. The Supreme Federal Court condemned mining companies and the federal government for not abiding by these obligations and demanded that they take action. The remediation costs can total $20,000 to $40,000 per hectare according to the levels of degradation and intentions for future use. A technical advisory board was created in 2006 to assist the federal court in addressing reclamation actions based on environmental indicators.
Future
The environmental and human concerns arising from coal mining activity mandate immediate action and research in search of more sustainable practices. For example, mining companies like Companhia Vale do Rio Doce (CVRD), Brazil's largest mining company, have invested large amounts of capital in clean technology. The company has also accepted a higher degree of social responsibility in the regions where its mines are located. Better working conditions, more proficient production, a healthier environment, an increased market value, a strong global reputation, and appreciation on behalf of the affected communities have all resulted from the company's actions.
A number of other suggestions to address these issues have arisen. Because political and civil organizations at different government levels have influenced the Brazilian mining industry, the development of a sustainable mining region would require a multifaceted approach to address the social, political, and economic concerns of the international community, the Brazilian government (at the national, regional, municipal, and local levels), the mining companies, and the local communities. Long-term planning to include post-mine community development would also help ensure more sustainable practices.
Reclamation projects on behalf of joint efforts between the government and mining companies have included surface and groundwater analyses and geological, hydrogeological, and structural mapping. About 818 abandoned mines have been mapped, and other pollution sources are being identified.
The diversification of local economies to include non-coal related industries such as ceramics and agriculture has proven successful in regions like the Araranguá watershed.
Improved mitigation procedures like confinement, dry covers, and vegetation have been found to significantly reduce the amount of pollution released from these sites.
Selective spoil site management has proven to be one of the most successful measures to protect surface and groundwater supplies from contamination, and may be a valid practice to apply in the future construction of dump sites. The improvement of drainage system quality through this procedure can also significantly reduce the cost of purification treatment prior to discharge into the receiving catchment zones. The residue released during the waste removal process could be further processed and recycled, or it could be sent to safe disposal sites that would not risk human health in the communities surrounding the site.Coal projects are being developed using the ECOPLEX concept. This means that the projects use the by-products from one industry as raw material for other industries. This results in lower production costs, less energy consumption, and a decreased impact on local communities and the environment. The projects related to the Brazilian coal industry would recycle the waste for use in Brazil's growing hydrothermal industry.Procedures to reclaim abandoned mining sites have also been proposed. Using the coal pit as a landfill for other waste would help limit the areas impacted by mining activity. Using the area for forest and grassland development could help restore the ecosystems damaged by deforestation and contamination. Developing grassland areas and constructing ponds could help stimulate other forms of local economic ability like cattle raising and fishing. Given the extreme degradation caused by mining activities and the tremendous costs of reclaiming affected land and water areas, these measures face a number of challenges in their successful implementation.Other measures such as the restriction of truck traffic at night, the watering of roads to reduce dust formation, and the covering of trucks to prevent spilling have also been implemented by mining companies. These have not proven to be sufficient in providing any substantial change, but they should not be dismissed as viable environmental protection measures.
Notes
References
Zancan, Fernando Luiz. "Brazilian Coal - Its Economic, Social and Environmental Impact." Sept.2002. <https://web.archive.org/web/20160304032443/http://www.satc.edu.br/siecesc/pdf/linguas/social_impac.pdf>.
Koppe, J.C., A. Griforieff, and J.F. Costa. "Environmental Reclamation Practice in a BrazilianCoal Mine -- An Economical Approach." Coal Operators' Conference (2005).
Silva, Izquierdo, Querol, Finkelman, Oliveira, Wollenschlager, Towler, Pérez-López, Macias (2010) "Leaching of potential hazardous elements of coal cleaning rejects"
Silva, Wollenschlager, Oliveira (2010) "A preliminary study of coal mining drainage and environmental health in the Santa Catarina region, Brazil"
Zocche, Dimer Leffa, Paganini Damiani, Carvalho, Ávila Mendonça, Iochims dos Santos, Appel Boufleur, Ferraz Dias, Moraes de Andrade (2010) "Heavy metals & DNA damage in blood cells of insectivore bats in coal mining areas of Catarinense coal basin, Brazil"
Júnior, Possamai, Budni, Backes, Parisotto, Rizelio, Torres, Colepicolo, Filho (2009) "Occupational airborne contamination in south Brazil: 1. Oxidative stress detected in the blood of coal miners"
Silva, Oliveira, da Boit, Finkelman (2008) "Characterization of Santa Catarina (Brazil) coal with respect to human health & environmental concerns"
Glauser, McAllister, & Milioli (2005) "The challenges of sustainability in mining regions: The coal mining region of Santa Catarina, Brazil"
Gomes, Mendes, & Costa (2011) "The Environmental Impact of Coal Mining: A Case Study in Brazil’s Sangão Watershed"
"Mining Impacts." Greenpeace International. 05 Apr. 2010. <http://www.greenpeace.org/international/en/campaigns/climate-change/coal/Mining-impacts/>.
"Profile of Coal Mining in Santa Catarina State (Brazil) and its Environmental Impacts" SATC |
environmental issues in sri lanka | Environmental issues in Sri Lanka include large-scale logging of forests and degradation of mangroves, coral reefs and soil. Air pollution and water pollution are challenges for Sri Lanka since both cause negative health impacts. Overfishing and insufficient waste management, especially in rural areas, leads to environmental pollution. Sri Lanka is also vulnerable to climate change impacts such as extreme weather events and sea level rise.Industrialization and population growth are major drivers of these environmental issues. A lack of public awareness and governmental guidelines intensify the problems.
Background
These environmental problems have escalated because of a high population growth and the increasing industrialization in Sri Lanka since the 1980s. The industrialization led to an increase in automobile use and energy consumption. The energy demand used to be almost covert by hydro power plants in 1988 (90%). The increased demands led to the construction of oil and coal fired thermal power plants which emit more greenhouse gases than renewable energy technologies like hydro power plants.A lack of public awareness and participation in government policies and environmental standards has amplified the problems. However, Sri Lanka's government has undertaken several efforts to encounter environmental issues.
Major environmental issues
Deforestation
Sri Lanka's central and southern parts are home to montane forests, sub-montane forests and to lowland rainforests. In contrast, sparse forests, mangroves, riverine dry forests and monsoon forests are located in the dry zone. These forest covers in Sri Lanka have been greatly reduced by legal and illegal forest clearing.
Due to deforestation in Sri Lanka the size of land covered by natural forests decreased from 80% in 1820 to 43% in 1948. This was partly caused by British colonialism from 1801 to 1948 which increased the amount of tea, coffee and rubber plantations. The natural forest cover further decreased to 23% in 2000. In 2010, 29% of Sri Lanka's area was covered by forests (this number includes forest plantations). Drivers of recent forest degradation are an increase in population, road construction, timber production, agricultural development and forest cleaning by private businessmen. Even though there are conservation areas, the management is partly insufficient. The extensive deforestation leads to a rise of the average surface temperature. Deforestation is also responsible for an increase in greenhouse gas emissions because trees remove CO2 from the air. By clear cutting areas the CO2 returns to the air and thereby increases the atmospheric carbon concentration.The government of Sri Lanka has adopted the target to increase the size of land covered by forests to 32% by 2030. In order to achieve this, the government intends to reforest degraded forests, to increase urban forests, and to improve the forest plantations.Sri Lanka had a 2018 Forest Landscape Integrity Index mean score of 5.83/10, ranking it 94th globally out of 172 countries.
Mangrove degradation
Sri Lanka's mangrove forests, small trees that grow in coastal water, have been decreased by 70% since 1915. The size of mangrove ecosystems is being reduced because of the implementation of agriculture and aquaculture systems like fisheries. Shrimp aquaculture projects are one of the biggest threats. The shrimp business is growing very fast because of high demand and high profits. One of the negative impacts of shrimp farms is that mangroves are being destroyed where the farms are built.Mangroves however are very important for people living close to the coast. The reason for this is that mangroves offer products that can be used for cooking, building houses and fodder, as well as fish, and other food items. They also offer protection against floods and pollutants. Moreover, mangroves are important for other ecosystems and host animals like fish, crab and shrimp.In 2015, the government of Sri Lanka reached an agreement with private companies, non-governmental organizations, researchers and members of affected communities. This agreement protects all mangrove forests in Sri Lanka by law. Moreover, they agreed to launch mangrove reforestation activities and to create alternative sources of income for locals.
Coral reef destruction
Coral reefs are threatened by human activities such as destructive fishing methods, coral-mining, pollution and unsustainable management practices. Extensive aquaculture is the biggest threat to coral reefs. Shrimp farms are especially destructive to coral reefs.Coral reefs are very important for the coastal population. They provide food, protect the coast, and are popular destination for tourists and therefore are important for people's income. Most Sri Lankans live along the coast and the population is growing which will have greater negative consequences for the coral reefs.
Soil degradation
Parts of the dry zone as well as the wet zone are damaged by soil degradation. Soil erosion in Sri Lanka is 14 to 33 times bigger than it would be without human influence. It has negative impacts on agriculture as well as on people's livelihood.Soil degradation is mainly caused by unsustainable agricultural practices, high intensity rainfall and indirectly caused by population growth which results in increased consumption. Tree plantation such as tea and rubber plantation cause low rates of soil erosion. Higher rates of soil erosion are caused by crops which are harvested annually like potatoes, most vegetables and tobacco. Soil degradation in the dry zone leads to desertification. The loss of soil also is a big problem near watersheds, because a lot of hydro power plants are built in those watersheds.
Air pollution
Air pollution is a problem in Sri Lanka's cities and it is mostly caused by vehicles. The number of motor vehicles almost tripled during the 1990s which also led to an increase in traffic jams. The use of old vehicles and poor quality gas intensify negative consequences.Major air pollutants in Sri Lanka are oxides of carbon, oxides of nitrogen, oxides of sulfur, particulates, inorganic compounds, hydrocarbons and the secondary pollutant photochemical smog. These pollutants have negative impact on people's health as they can cause respiratory illnesses, asthma or even death. Dust falls are also an issue in areas with a high traffic density.Besides outdoor pollution, indoor pollution also is a concern. The pollutants listed above have even worse impacts inside motor vehicles and buildings. Air pollution inside buildings is a severe problem when firewood is used for cooking. In 2000, 80% of households burned firewood for cooking which sets free many fine particles that can cause respiratory illnesses, and cancer.
Water pollution
Domestic activities, industry and agriculture cause water pollution in Sri Lanka.Rivers and lakes are most affected by pollutants. Pollutants that end up in lakes are sewage, vegetable waste and waste from hospitals. The pollution of lakes in Sri Lanka leads to algal blooms, which reduces the oxygen content and has negative consequences on fish populations. The Kelani river is especially polluted because it flows through industrial areas. Industrial waste is often discharged into the river, treated or untreated. Moreover, dumps that are located close to rivers have negative influences on the water quality. Large amounts of pesticides used in the agricultural sector also get into the water of rivers and lakes. Groundwater and surface water are also polluted by the heavy use of fertilizer and pesticides and by storm run-offs. Coastal and marine waters are threatened by pesticides, fertilizer, industrial waste and run-offs from waste dumps. Rivers that flow out into the sea deteriorate the sea water. Oil spills, chemicals and non-biodegradable waste such as plastic also decrease the quality of Sri Lanka's seawater. Microplastic pollution has resulted in a drastic reduction of fish stocks.In 2000, only 25% of the households in Sri Lanka got their water through pipes. Even the water that does come through the pipe from local suppliers is not monitored efficiently. This is why a part of the population does not get clean drinking water. Sri Lanka's wastewater management requires a lot of work. Only approximately 2.5 percent of the population, primarily in the Colombo region, has access to sewers.The French Development Agency (AFD) authorized a €75 million loan to improve sanitation services in Ratmalana and Moratuwa, two overpopulated and rapidly increasing suburbs. This initiative will provide better sanitation services to 44, 500 individuals.
Waste management
Sri Lanka faces managerial problems in waste collection and waste disposal.A study from 2005 revealed that only 24% of the household had waste management and the percentage of access to waste collection is even smaller in rural areas (2%). Increased waste generation is caused by high population growth, industrialization, urbanization and increased consumption.
Provinces and local authorities are over-strained by these large amounts. Collected waste is often brought to open dumps and is not treated. Moreover, some dumps are located in environmentally sensitive locations or close to residential areas. These problems are caused by a lack of governmental regulations and public commitment but also a lack of technical knowledge, low financial resources and too little suitable space for waste disposal sites. The effects of poor waste management is waste laying in the streets, waterways and swamps. These results influence the aesthetic of the landscape, decrease the biodiversity, cause health problems and have negative impacts on Sri Lanka's tourist industry. The study shows that in areas without waste collection, the majority of people dump their waste that should be going to the landfill in their backyard. Plastics and paper are often burned or also disposed in the backyard. Moreover, green waste is burned by 80% of the household in the southern provinces that do not have access to waste collection.Sri Lanka's government aims to address these problems by implementing waste sorting systems in households, improved waste collection by municipalities and cities, composting systems and systematic treatment of hazardous waste from the industry and clinics.
Overfishing
Sri Lanka is experiencing declines in fish populations due to overfishing.
Climate change vulnerability
Sri Lanka's geographic location makes it vulnerable for climate change impacts. Expected impacts are an increase in temperature, more frequent extreme weather events like floods and cyclones as well as sea level rise. Sea level rise is especially critical for Sri Lanka's coastal regions. These impacts negatively influence agriculture, fisheries, tourism, people's livelihood, and the environment. The impacts on agriculture and fisheries will in turn influence food security and exports of crops and fishes. Negative consequences for the environment include biodiversity loss, ecosystem degradation and water cycle disturbances.Sri Lanka has set goals in their Intended Nationally Determined Contributions (INDC) how to implement climate change mitigation and adaptation strategies in order to prevent severe climate change impacts. The government has already implemented regulations and guidelines like the National Climate Change Policy of Sri Lanka, the Climate Change Vulnerability Profiles and the Technology Action Plans for Climate Change Adaption and Mitigation in 2014. Moreover, steps have been taking to reduce possible impacts of climate change in Sri Lanka. These steps include but are not limited to building a more resilient infrastructure, actions to ensure human health and food security during and after climate change impacts like floods and cyclones, and the protection of the environment and the tourism sector.
Environmental disasters
X-Press Pearl
References
Further reading
Bandara, N. J. G. J. (2003-06-01). "Water and wastewater related issues in Sri Lanka". Water Science and Technology. 47 (12): 305–312. ISSN 0273–1223.
Nandasena, Yatagama Lokuge S; Wickremasinghe, Ananda R; Sathiakumar, Nalini (2010-06-02). "Air pollution and health in Sri Lanka: a review of epidemiologic studies" BMC Public Health 10: 300.
Rajasuriya, A., de Silva, M. W. R. N., & Oehman, M. C. (1995). Coral reefs of Sri Lanka: human disturbance and management issues. Ambio. |
single-cell protein | Single-cell proteins (SCP) or microbial proteins refer to edible unicellular microorganisms. The biomass or protein extract from pure or mixed cultures of algae, yeasts, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods, and is suitable for human consumption or as animal feeds. Industrial agriculture is marked by a high water footprint, high land use, biodiversity destruction, general environmental degradation and contributes to climate change by emission of a third of all greenhouse gases; production of SCP does not necessarily exhibit any of these serious drawbacks. As of today, SCP is commonly grown on agricultural waste products, and as such inherits the ecological footprint and water footprint of industrial agriculture. However, SCP may also be produced entirely independent of agricultural waste products through autotrophic growth. Thanks to the high diversity of microbial metabolism, autotrophic SCP provides several different modes of growth, versatile options of nutrients recycling, and a substantially increased efficiency compared to crops. A 2021 publication showed that photovoltaic-driven microbial protein production could use 10 times less land for an equivalent amount of protein compared to soybean cultivation.With the world population reaching 9 billion by 2050, there is strong evidence that agriculture will not be able to meet demand and that there is serious risk of food shortage. Autotrophic SCP represents options of fail-safe mass food-production which can produce food reliably even under harsh climate conditions.
History
In 1781, processes for preparing highly concentrated forms of yeast were established. Research on Single Cell Protein Technology started a century ago when Max Delbrück and his colleagues found out the high value of surplus brewer’s yeast as a feeding supplement for animals. During World War I and World War II, yeast-SCP was employed on a large scale in Germany to counteract food shortages during the war. Inventions for SCP production often represented milestones for biotechnology in general: for example, in 1919, Sak in Denmark and Hayduck in Germany invented a method named, “Zulaufverfahren”, (fed-batch) in which sugar solution was fed continuously to an aerated suspension of yeast instead of adding yeast to diluted sugar solution once (batch). In post war period, the Food and Agriculture Organization of the United Nations (FAO) emphasized on hunger and malnutrition problems of the world in 1960 and introduced the concept of protein gap, showing that 25% of the world population had a deficiency of protein intake in their diet. It was also feared that agricultural production would fail to meet the increasing demands of food by humanity. By the mid 60’s, almost quarter of a million tons of food yeast were being produced in different parts of the world and Soviet Union alone produced some 900,000 tons by 1970 of food and fodder yeast.In the 1960s, researchers at British Petroleum developed what they called "proteins-from-oil process": a technology for producing single-cell protein by yeast fed by waxy n-paraffins, a byproduct of oil refineries. Initial research work was done by Alfred Champagnat at BP's Lavera Oil Refinery in France; a small pilot plant there started operations in March 1963, and the same construction of the second pilot plant, at Grangemouth Oil Refinery in Britain, was authorized.The term SCP was coined in 1966 by Carroll L. Wilson of MIT.The "food from oil" idea became quite popular by the 1970s, with Champagnat being awarded the UNESCO Science Prize in 1976, and paraffin-fed yeast facilities being built in a number of countries. The primary use of the product was as poultry and cattle feed.The Soviets were particularly enthusiastic, opening large "BVK" (belkovo-vitaminny kontsentrat, i.e., "protein-vitamin concentrate") plants next to their oil refineries in Kstovo (1973) and Kirishi (1974). The Soviet Ministry of Microbiological Industry had eight plants of this kind by 1989. However, due to concerns of toxicity of alkanes in SCP and pressured by the environmentalist movements, the government decided to close them down, or convert to some other microbiological processes.Quorn is a range of vegetarian and vegan meat-substitutes made from Fusarium venenatum mycoprotein, sold in Europe and North America.
Another type of single cell protein-based meat analogue (which does not use fungi however but rather bacteria) is Calysta. Other producers are Unibio (Denmark) Circe Biotechnologie (Austria) and String Bio (India).
SCP has been argued to be a source of alternative or resilient food.
Production process
Single-cell proteins develop when microbes ferment waste materials (including wood, straw, cannery, and food-processing wastes, residues from alcohol production, hydrocarbons, or human and animal excreta). With 'electric food' processes the inputs are electricity, CO2 and trace minerals and chemicals such as fertiliser. It is also possible to derive SCP from natural gas to use as a resilient food. Similarly SCP can be derived from waste plastic by upcycling.The problem with extracting single-cell proteins from the wastes is the dilution and cost. They are found in very low concentrations, usually less than 5%. Engineers have developed ways to increase the concentrations including centrifugation, flotation, precipitation, coagulation, and filtration, or the use of semi-permeable membranes.
The single-cell protein must be dehydrated to approximately 10% moisture content and/or acidified to aid in storage and prevent spoilage. The methods to increase the concentrations to adequate levels and the de-watering process require equipment that is expensive and not always suitable for small-scale operations. It is economically prudent to feed the product locally and soon after it is produced.
Microorganisms
Microbes employed include:
Yeast
Saccharomyces cerevisiae
Pichia pastoris
Candida utilis
Torulopsis corallina
Geotrichum candidum
Fungi (Mycoprotein)
Aspergillus oryzae
Fusarium venenatum
Sclerotium rolfsii
Polyporus
Trichoderma
Scytalidium acidophilum
Bacteria
Rhodobacter capsulatus
Methylophilus methylotrophus
Metylococcus capsulatus
Algae
Spirulina (dietary supplement)
Chlorella
Properties
Large-scale production of microbial biomass has many advantages over the traditional methods for producing proteins for food or feed.
Microorganisms have a much higher growth rate (algae: 2–6 hours, yeast: 1–3 hours, bacteria: 0.5–2 hours). This also allows selection for strains with high yield and good nutritional composition more quickly and easily compared to breeding.
Whereas large parts of crops, such as stems, leaves and roots, are not edible, single-cell microorganisms can be used entirely. Whereas parts of the edible fraction of crops are indigestible, many microorganisms are digestible at a much higher fraction.
Microorganisms usually have a much higher protein content of 30–70% in the dry mass than vegetables or grains. The amino acid profiles of many SCP microorganisms often have excellent nutritional quality, comparable to hen's eggs.
Some microorganisms can build vitamins and nutrients which eukaryotic organisms such as plants cannot produce or not produce in significant amounts, including vitamin B12.
Microorganisms can utilize a broad spectrum of raw materials as carbon sources including alkanes, methanol, methane, ethanol and sugars. What was considered "waste product" often can be reclaimed as nutrients and support growth of edible microorganisms.
Like plants, autotrophic microorganisms are capable of growing on CO2. Some of them, such as bacteria with the Wood–Ljungdahl pathway or the reductive TCA can fix CO2 with efficiencies ranging from 2-3 times to 10 times more efficiently than plants, when also considering the effects of photoinhibition.
Some bacteria, such as several homoacetogenic clostridia, are capable of performing syngas fermentation. This means they can metabolize synthesis gas, a gas mixture of CO, H2 and CO2 that can be made by gasification of residual intractable biowastes such as lignocellulose.
Some bacteria are diazotrophic, i.e. they can fix N2 from the air and are thus independent of chemical N-fertilizer, whose production, utilization and degradation causes tremendous harm to the environment, deteriorates public health, and fosters climate change.
Many bacteria can utilize H2 for energy supply, using enzymes called hydrogenases. Whereas hydrogenases are normally highly O2-sensitive, some bacteria are capable of performing O2-dependent respiration of H2. This feature allows autotrophic bacteria to grow on CO2 without light at a fast growth rate. Since H2 can be made efficiently by water electrolysis, in a manner of speaking, those bacteria can be "powered by electricity".
Microbial biomass production is independent of seasonal and climatic variations, and can easily be shielded from extreme weather events that are expected to cause crop failures with the ongoing climate-change. Light-independent microorganisms such as yeasts can continue to grow at night.
Cultivation of microorganisms generally has a much lower water footprint than agricultural food production. Whereas the global average blue-green water footprint (irrigation, surface, ground and rain water) of crops reaches about 1800 liters per kg crop due to evaporation, transpiration, drainage and runoff, closed bioreactors producing SCP exhibits none of these causes.
Cultivation of microorganisms does not require fertile soil and therefore does not compete with agriculture. Thanks to the low water requirements, SCP cultivation can even be done in dry climates with infertile soil and may provide a means of fail-safe food supply in arid countries.
Photosynthetic microorganisms can reach a higher solar-energy-conversion efficiency than plants, because in photobioreactors supply of water, CO2 and a balanced light distribution can be tightly controlled.
Unlike agricultural products which are processed towards a desired quality, it is easier with microorganisms to direct production towards a desired quality. Instead of extracting amino acids from soy beans and throwing away half of the plant body in the process, microorganisms can be genetically modified to overproduce or even secrete a particular amino acid. However, in order to keep a good consumer acceptance, it is usually easier to obtain similar results by screening for microorganisms which already have the desired trait or train them via selective adaptation.Although SCP shows very attractive features as a nutrient for humans, however there are some problems that deter its adoption on global basis:
Fast growing microorganisms such as bacteria and yeast have a high concentration of nucleic acid, notably RNA. Levels must be limited in the diets of monogastric animals to <50 g per day. Ingestion of purine compounds arising from RNA breakdown leads to increased plasma levels of uric acid, which can cause gout and kidney stones. Uric acid can be converted to allantoin, which is excreted in urine. Nucleic acid removal is not necessary from animal feeds but is from human foods. A temperature hold at 64 °C inactivates fungal proteases . However, this problem can be remediated. One common method consists in a heat treatment which kills the cells, inactivates proteases and allows endogenous RNases to hydrolyse RNA with release of nucleotides from cell to culture broth.
Similar to plant cells, the cell wall of some microorganisms such as algae and yeast contains indigestible components, such as cellulose. The cells of some kind of SCP should be broken up in order to liberate the cell interior and allow complete digestion.
Some kind of SCP exhibits unpleasant color and flavors.
Depending on the kind of SCP and the cultivation conditions, care must be taken to prevent and control contamination by other microorganisms because contaminants may produce toxins such as mycotoxins or cyanotoxins. An interesting approach to address this problem was proposed with the fungus Scytalidium acidophilum which grows at a pH as low as 1, outside the tolerance of most microorganisms. This allows it to grow on acid-hydrolysed paper waste at low-cost.
Some yeast and fungal proteins are deficient in methionine.
See also
Solein: a single cell protein made by Solar Foods Ltd.
Kiverdi, Inc
Unibio, Calysta, Circe Biotechnologie, White Dog Labs
Purple bacteria: a type of single-cell protein
Kyanos
NovoNutrients
Deep Branch Biotechnology
Fermentative hydrogen production
Hydrogenotrophs
Alternative foods
== References == |
ecological health | Ecological health is a term that has been used in relation to both human health and the condition of the environment.
In medicine, ecological health has been used to refer to multiple chemical sensitivity, which results from exposure to synthetic chemicals (pesticides, smoke, etc.) in the environment, hence the term ecological.
The term has also been used in medicine with respect to management of environmental factors (taxes, health insurance surcharges) that may reduce the risk of unhealthy behavior such as smoking.
As an urban planning term, ecological health refers to the "greenness" of cities, meaning composting, recycling, and energy efficiency.
With respect to broader environmental issues, ecological health has been defined as "the goal for the condition at a site that is cultivated for crops, managed for tree harvest, stocked for fish, urbanized, or otherwise intensively used."Ecological health differs from ecosystem health, the condition of ecosystems, which have particular structural and functional properties, and it differs from ecological integrity, which refers to environments with minimal human impact, although the term ecological health has also been used loosely in reference to a range of environmental issues. Human health, in its broadest sense, is recognized as having ecological foundations.The term health is intended to evoke human environmental health concerns, which are often closely related (but as a part of medicine not ecology). As with ecocide, that term assumes that ecosystems can be said to be alive (see also Gaia philosophy on this issue). While the term integrity or damage seems to take no position on this, it does assume that there is a definition of integrity that can be said to apply to ecosystems. The more political term ecological wisdom refers not only to recognition of a level of health, integrity or potential damage, but also, to a decision to do nothing (more) to harm that ecosystem or its dependents. An ecosystem has a good health if it is capable of self-restoration after suffering external disturbances. This is termed resilience.
Measures of broad ecological health, like measures of the more specific principle of biodiversity, tend to be specific to an ecoregion or even to an ecosystem. Measures that depend on biodiversity are valid indicators of ecological health as stability and productivity (good indicators of ecological health) are two ecological effects of biodiversity. Dependencies between species vary so much as to be difficult to express abstractly. However, there are a few universal symptoms of poor health or damage to system integrity:
The buildup of waste material and the proliferation of simpler life forms (bacteria, insects) that thrive on it - but no consequent population growth in those species that normally prey on them;
The loss of keystone species, often a top predator, causing smaller carnivores to proliferate, very often overstressing herbivore populations;
A higher rate of species mortality due to disease rather than predation, climate, or food scarcity;
The migration of whole species into or out of a region, contrary to established or historical patterns;
The proliferation of a bioinvader or even a monoculture where previously a more biodiverse species range existed.Some practices such as organic farming, sustainable forestry, natural landscaping, wild gardening or precision agriculture, sometimes combined into sustainable agriculture, are thought to improve or at least not to degrade ecological health, while still keeping land usable for human purposes. This is difficult to investigate as part of ecology, but is increasingly part of discourse on agricultural economics and conservation.
Ecotage is another tactic thought to be effective by some in protecting the health of ecosystems, but this is hotly disputed. In general, low confrontation and much attention to political virtues is thought to be important to maintaining ecological health, as it is far faster and simpler to destroy an ecosystem than protect it—thus wars on behalf of ecosystem integrity may simply lead to more rapid despoliation and loss due to competition.
Deforestation and the habitat destruction of deep-sea coral reef are two issues that prompt deep investigation of what makes for ecological health, and fuels a great many debates. The role of clearcuts, plantations, and trawler nets is often portrayed as negative in the extreme, held akin to the role of weapons on human life. (See Human impact on the environment.)
See also
Ecosystem health
EcoHealth
Natural capital
Normative science
Overconsumption
Overexploitation
Resilience (ecology)
Scorched earth
References
Costanza R, Norton BG and Haskell BD (1992) Ecosystem health: new goals for environmental management, Island Press, ISBN 978-1-55963-140-2.
Center for Ecological Health Research University of California, Davis. It is one of four environmental research centers established in 1991 by the U.S. Environmental Protection Agency (R819658 & R825433) |
environmental health | Environmental health is the branch of public health concerned with all aspects of the natural and built environment affecting human health. In order to effectively control factors that may affect health, the requirements that must be met in order to create a healthy environment must be determined. The major sub-disciplines of environmental health are environmental science, toxicology, environmental epidemiology, and environmental and occupational medicine.
Definitions
WHO definitions
Environmental health was defined in a 1989 document by the World Health Organization (WHO) as:
Those aspects of human health and disease that are determined by factors in the environment. It is also referred to as the theory and practice of accessing and controlling factors in the environment that can potentially affect health.A 1990 WHO document states that environmental health, as used by the WHO Regional Office for Europe, "includes both the direct pathological effects of chemicals, radiation and some biological agents, and the effects (often indirect) on health and well being of the broad physical, psychological, social and cultural environment, which includes housing, urban development, land use and transport."As of 2016, the WHO website on environmental health states that "Environmental health addresses all the physical, chemical, and biological factors external to a person, and all the related factors impacting behaviours. It encompasses the assessment and control of those environmental factors that can potentially affect health. It is targeted towards preventing disease and creating health-supportive environments. This definition excludes behaviour not related to environment, as well as behaviour related to the social and cultural environment, as well as genetics."The WHO has also defined environmental health services as "those services which implement environmental health policies through monitoring and control activities. They also carry out that role by promoting the improvement of environmental parameters and by encouraging the use of environmentally friendly and healthy technologies and behaviors. They also have a leading role in developing and suggesting new policy areas."
Other considerations
The term environmental medicine may be seen as a medical specialty, or branch of the broader field of environmental health. Terminology is not fully established, and in many European countries they are used interchangeably.Children's environmental health is the academic discipline that studies how environmental exposures in early life—chemical, nutritional, and social—influence health and development in childhood and across the entire human life span.Other terms referring to or concerning environmental health include environmental public health and health protection.
Disciplines
Five basic disciplines generally contribute to the field of environmental health: environmental epidemiology, toxicology, exposure science, environmental engineering, and environmental law. Each of these five disciplines contributes different information to describe problems and solutions in environmental health. However, there is some overlap among them.
Environmental epidemiology studies the relationship between environmental exposures (including exposure to chemicals, radiation, microbiological agents, etc.) and human health. Observational studies, which simply observe exposures that people have already experienced, are common in environmental epidemiology because humans cannot ethically be exposed to agents that are known or suspected to cause disease. While the inability to use experimental study designs is a limitation of environmental epidemiology, this discipline directly observes effects on human health rather than estimating effects from animal studies. Environmental epidemiology is the study of the effect on human health of physical, biologic, and chemical factors in the external environment, broadly conceived. Also, examining specific populations or communities exposed to different ambient environments, Epidemiology in our environment aims to clarify the relationship that exist between physical, biologic or chemical factors and human health.
Toxicology studies how environmental exposures lead to specific health outcomes, generally in animals, as a means to understand possible health outcomes in humans. Toxicology has the advantage of being able to conduct randomized controlled trials and other experimental studies because they can use animal subjects. However, there are many differences in animal and human biology, and there can be a lot of uncertainty when interpreting the results of animal studies for their implications for human health.
Exposure science studies human exposure to environmental contaminants by both identifying and quantifying exposures. Exposure science can be used to support environmental epidemiology by better describing environmental exposures that may lead to a particular health outcome, identify common exposures whose health outcomes may be better understood through a toxicology study, or can be used in a risk assessment to determine whether current levels of exposure might exceed recommended levels. Exposure science has the advantage of being able to very accurately quantify exposures to specific chemicals, but it does not generate any information about health outcomes like environmental epidemiology or toxicology.
Environmental engineering applies scientific and engineering principles for protection of human populations from the effects of adverse environmental factors; protection of environments from potentially deleterious effects of natural and human activities; and general improvement of environmental quality.
Environmental law includes the network of treaties, statutes, regulations, common and customary laws addressing the effects of human activity on the natural environment.Information from epidemiology, toxicology, and exposure science can be combined to conduct a risk assessment for specific chemicals, mixtures of chemicals or other risk factors to determine whether an exposure poses significant risk to human health (exposure would likely result in the development of pollution-related diseases). This can in turn be used to develop and implement environmental health policy that, for example, regulates chemical emissions, or imposes standards for proper sanitation. Actions of engineering and law can be combined to provide risk management to minimize, monitor, and otherwise manage the impact of exposure to protect human health to achieve the objectives of environmental health policy.
Concerns
Environmental health addresses all human-health-related aspects of the natural environment and the built environment. Environmental health concerns include:
Biosafety.
Disaster preparedness and response.
Food safety, including in agriculture, transportation, food processing, wholesale and retail distribution and sale.
Housing, including substandard housing abatement and the inspection of jails and prisons.
Childhood lead poisoning prevention.
Land use planning, including smart growth.
Liquid waste disposal, including city waste water treatment plants and on-site waste water disposal systems, such as septic tank systems and chemical toilets.
Medical waste management and disposal.
Occupational health and industrial hygiene.
Radiological health, including exposure to ionizing radiation from X-rays or radioactive isotopes.
Recreational water illness prevention, including from swimming pools, spas and ocean and freshwater bathing places.
Solid waste management, including landfills, recycling facilities, composting and solid waste transfer stations.
Toxic chemical exposure whether in consumer products, housing, workplaces, air, water or soil.
Vector control, including the control of mosquitoes, rodents, flies, cockroaches and other animals that may transmit pathogens.According to recent estimates, about 5 to 10% of disability-adjusted life years (DALYs) lost are due to environmental causes in Europe. By far the most important factor is fine particulate matter pollution in urban air. Similarly, environmental exposures have been estimated to contribute to 4.9 million (8.7%) deaths and 86 million (5.7%) DALYs globally. In the United States, Superfund sites created by various companies have been found to be hazardous to human and environmental health in nearby communities. It was this perceived threat, raising the specter of miscarriages, mutations, birth defects, and cancers that most frightened the public.
Air quality
Air quality includes ambient outdoor air quality and indoor air quality. Large concerns about air quality include environmental tobacco smoke, air pollution by forms of chemical waste, and other concerns.
Outdoor air quality
Air pollution is globally responsible for over 6.5 million deaths each year. Air pollution is the contamination of an atmosphere due to the presence of substances that are harmful to the health of living organisms, the environment or climate. These substances concern environmental health officials since air pollution is often a risk-factor for diseases that are related to pollution, like lung cancer, respiratory infections, asthma, heart disease, and other forms of respiratory-related illnesses. Reducing air pollution, and thus developing air quality, has been found to decrease adult mortality.
Common products responsible for emissions include road traffic, energy production, household combustion, aviation and motor vehicles, and other forms of pollutants. These pollutants are responsible for the burning of fuel, which can release harmful particles into the air that humans and other living organisms can inhale or ingest.Air pollution is associated with adverse health effects like respiratory and cardiovascular diseases, cancer, related illnesses, and even death. The risk of air pollution is determined by the pollutant's hazard and the amount of exposure that affects a person. For example, a child who plays outdoor sports will have a higher likelihood of outdoor air pollution exposure compared to an adult who tends to spend more time indoors, whether at work or elsewhere. Environmental health officials work to detect individuals who are at higher risks of consuming air pollution, work to decrease their exposure, and detect risk factors present in communities.
Indoor air quality
Household air pollution contributes to diseases that kill almost 4.3 million people every year. Indoor air pollution contributes to risk factors for diseases like heart disease, pulmonary disease, stroke, pneumonia, and other associated illnesses. For vulnerable populations who spend large amounts of their time indoors, such as children and elderly populations, poor indoor air quality can be dangerous.Burning fuels like coal or kerosene inside homes can cause dangerous chemicals to be released into the air. Dampness and mold in houses can cause diseases as well, but little studies have been performed on mold in schools and workplaces. Environmental tobacco smoke is considered to be a leading contributor to indoor air pollution, since exposure to second and third-hand smoke is a common risk factor. Tobacco smoke contains over 60 carcinogens, where 18% are known human carcinogens. Exposure to these chemicals can lead to exacerbation of asthma, development of cardiovascular diseases, cardiopulmonary diseases, and increase the likelihood of cancer development.
Climate change and its effects on health
Climate change makes extreme weather events more likely, including ozone smog events, dust storms, and elevated aerosol levels, all due to extreme heat, drought, winds, and rainfall. These extreme weather events can increase the likelihood of undernutrition, mortality, food insecurity, and climate-sensitive infectious diseases in vulnerable populations. The effects of climate change are felt by the whole world, but disproportionately affect disadvantaged populations who are subject to climate change vulnerability.
Climate impacts can affect exposure to water-borne pathogens through increased rates of runoff, frequent heavy rains, and the effects of severe storms. Extreme weather events and storm surges can also exceed the capacity of water infrastructure, which can increase the likelihood that populations will be exposed to these contaminants. Exposure to these contaminants are more likely in low-income communities, where they have inadequate infrastructure to respond to climate disasters and are less likely to recover from infrastructure damage as quickly.Problems like the loss of homes, loved ones, and previous ways of life, are often what people face after a climate disaster occurs. These events can lead to vulnerability in the form of housing affordability stress, lower household income, lack of community attachment, grief, and anxiety around another disaster occurring.
Environmental racism
Certain groups of people can be put at a higher risk for environmental hazards like air, soil and water pollution. This often happens due to marginalization, economic and political processes, and racism. Environmental racism uniquely affects different groups globally, however generally the most marginalized groups of any region are affected. These marginalized groups are frequently put next to pollution sources like major roadways, toxic waste sites, landfills, and chemical plants. In a 2021 study, it was found that racial and ethnic minority groups in the United States are exposed to disproportionately high levels of particulate air pollution. Racial housing policies that exist in the United States continue to exacerbate racial minority exposure to air pollution at a disproportionate rate, even as overall pollution levels have declined. Likewise, in a 2022 study, it was shown that implementing policy changes that favor wealth redistribution could double as climate change mitigation measures. For populations who are not subject to wealth redistribution measures, this means more money will flow into their communities while climate effects are mitigated.
Noise pollution
Noise pollution is usually non-environmental, machine-created sound that can disrupt activities or communication between humans and other life forms. Exposure to persistent noise pollution can cause diseases like hearing impairment, sleep disturbances, cardiovascular problems, annoyance, problems with communication and other diseases. For American minorities that live in neighborhoods of low socioeconomic status, they often experience higher levels of noise pollution compared to their higher socioeconomic counterparts.Noise pollution can cause or exacerbate cardiovascular diseases, which can further affect a large range of diseases, increase stress levels, and cause sleep disturbances. Noise pollution is also responsible for cases of hearing loss, tinnitus, and other forms of hypersensitivity or lack thereof to sound. These conditions can be dangerous to children and young adults who consistently experience noise pollution, as many of these conditions can develop into long-term problems.Children who attend school in noisy traffic zones have shown to have 20% lower memory development compared to other students who attended schools in quiet traffic zones, according to a Barcelona study. This is consistent with research that suggests that children who are exposed to regular aircraft noise "have poorer performance on standardised achievement tests."Exposure to persistent noise pollution can cause one to develop hearing impairments, like tinnitus or impaired speech discrimination. One of the largest factors in worsened mental health due to noise pollution is annoyance. Annoyance due to environmental factors has been found to increase stress reactions and overall feelings of stress among adults. The level of annoyance felt by an individual varies, but contributes to worsened mental health significantly.Noise exposure also contributes to sleep disturbances, which can cause daytime sleepiness and an overall lack of sleep, which contributes to worsened health.
Safe drinking water
Access to safe drinking water is considered a "basic human need for health and well-being" by the United Nations. According to their reports, over 2 billion people worldwide live without access to safe drinking water. In 2017, almost 22 million Americans drank from water systems that were in violation of public health standards. Globally, over 2 billion people drink feces-contaminated water, which poses the greatest threat to drinking water safety. Contaminated drinking water could transmit diseases like cholera, dysentery, typhoid, diarrhea and polio.Harmful chemicals in drinking water can negatively affect health. Unsafe water management practices can increase the prevalence of water-borne diseases and sanitation-related illnesses. Schools in the United States are not required by law to test for safe drinking water, meaning that many children can drink contaminants like lead in their water at school. Inadequate disinfecting of wastewater in industrial and agricultural centers can also infect hundreds of millions of people with contaminated water. Chemicals like fluoride and arsenic can benefit humans when the levels of these chemicals are controlled;but other, more dangerous chemicals like lead and metals can be harmful to humans.In America, communities of color can be subject to poor-quality water. In communities in America with large hispanic and black populations, there is a correlated rise in SDWA health violations. Populations who have experienced lack of safe drinking water, like populations in Flint, Michigan, are more likely to distrust tap water in their communities. Populations to experience this are commonly low-income, communities of color.
Hazardous materials management
Hazardous materials management, including hazardous waste management, contaminated site remediation, the prevention of leaks from underground storage tanks and the prevention of hazardous materials releases to the environment and responses to emergency situations resulting from such releases. When hazardous materials are not managed properly, waste can pollute nearby water sources and reduce air quality.According to a study done in Austria, people who live near industrial sites are "more often unemployed, have lower educations levels, and are twice as likely to be immigrants. With the interest of environmental health in mind, the Resource Conservation and Recovery Act was passed in the United States in 1976 that covered how to properly manage hazardous waste.
Microplastic pollution
Soil pollution
Information and mapping
The Toxicology and Environmental Health Information Program (TEHIP) is a comprehensive toxicology and environmental health web site, that includes open access to resources produced by US government agencies and organizations, and is maintained under the umbrella of the Specialized Information Service at the United States National Library of Medicine. TEHIP includes links to technical databases, bibliographies, tutorials, and consumer-oriented resources. TEHIP is responsible for the Toxicology Data Network (TOXNET), an integrated system of toxicology and environmental health databases including the Hazardous Substances Data Bank, that are open access, i.e. available free of charge. TOXNET was retired in 2019.There are many environmental health mapping tools. TOXMAP is a geographic information system (GIS) from the Division of Specialized Information Services of the United States National Library of Medicine (NLM) that uses maps of the United States to help users visually explore data from the United States Environmental Protection Agency's (EPA) Toxics Release Inventory and Superfund Basic Research Programs. TOXMAP is a resource funded by the US federal government. TOXMAP's chemical and environmental health information is taken from the NLM's Toxicology Data Network (TOXNET) and PubMed, and from other authoritative sources.
Environmental health profession
Environmental health professionals may be known as environmental health officers, public health inspectors, environmental health specialists or environmental health practitioners. Researchers and policy-makers also play important roles in how environmental health is practiced in the field. In many European countries, physicians and veterinarians are involved in environmental health. In the United Kingdom, practitioners must have a graduate degree in environmental health and be certified and registered with the Chartered Institute of Environmental Health or the Royal Environmental Health Institute of Scotland. In Canada, practitioners in environmental health are required to obtain an approved bachelor's degree in environmental health along with the national professional certificate, the Certificate in Public Health Inspection (Canada), CPHI(C). Many states in the United States also require that individuals have a bachelor's degree and professional licenses in order to practice environmental health. California state law defines the scope of practice of environmental health as follows:
"Scope of practice in environmental health" means the practice of environmental health by registered environmental health specialists in the public and private sector within the meaning of this article and includes, but is not limited to, organization, management, education, enforcement, consultation, and emergency response for the purpose of prevention of environmental health hazards and the promotion and protection of the public health and the environment in the following areas: food protection; housing; institutional environmental health; land use; community noise control; recreational swimming areas and waters; electromagnetic radiation control; solid, liquid, and hazardous materials management; underground storage tank control; onsite septic systems; vector control; drinking water quality; water sanitation; emergency preparedness; and milk and dairy sanitation pursuant to Section 33113 of the Food and Agricultural Code.The environmental health profession had its modern-day roots in the sanitary and public health movement of the United Kingdom. This was epitomized by Sir Edwin Chadwick, who was instrumental in the repeal of the poor laws, and in 1884 was the founding president of the Association of Public Sanitary Inspectors, now called the Chartered Institute of Environmental Health.
See also
References
Further reading
Andrew M. Pope; David P. Rall (1995). Committee on Curriculum Development in Environmental Medicine at the Institute of Medicine (ed.). Environmental Medicine – Integrating a Missing Element into Medical Education. National Academies Press. ISBN 0309051401.
Lifestyle factors that can induce an independent and persistent low-grade systemic inflammatory response: a wholistic approach George Vrousgos, N.D. – Southern Cross University
Kate Davies (2013). The Rise of the U.S. Environmental Health Movement. Rowman & Littlefield. ISBN 978-1442221376.
White, Franklin; Stallones, Lorann; Last, John M. (2013). Global Public Health: Ecological Foundations. Oxford University Press. ISBN 978-0-19-975190-7.
Jouko Tuomisto (2005). "Arsenic to zoonoses – One hundred questions about the environment and health". Terveyden ja hyvinvoinnin laitos (National Institute for Health and Welfare, Finland). Archived from the original on 2015-01-15. Retrieved 10 January 2015.
"Environment and Health A to Z" (PDF). NIEHS. 2023.
External links
NIEHS |
circular economy | A circular economy (also referred to as circularity or CE) is a model of production and consumption, which involves sharing, leasing, reusing, repairing, refurbishing and recycling existing materials and products for as long as possible. CE aims to tackle global challenges such as climate change, biodiversity loss, waste, and pollution by emphasizing the design-based implementation of the three base principles of the model. The three principles required for the transformation to a circular economy are: designing out waste and pollution, keeping products and materials in use, and regenerating natural systems." CE is defined in contradistinction to the traditional linear economy. The idea and concepts of circular economy (CE) have been studied extensively in academia, business, and government over the past ten years. CE has been gaining popularity because it helps to minimize emissions and consumption of raw materials, open up new market prospects and, principally, increase the sustainability of consumption and improve resource efficiency.At a government level, CE is viewed as means of combating global warming, as well as a facilitator of long-term growth. CE may geographically connect actors and resources to stop material loops at the regional level. In its core principle, the European Parliament defines CE as, "a model of production and consumption, which involves sharing, leasing, reusing, repairing, refurbishing and recycling existing materials and products as long as possible. In this way, the life cycle of products is extended." By the year 2050, 9.3 billion tonnes of CO2 equivalent (equal to all current emissions from transportation), can be reduced by implementing circular economy strategies in five sectors: cement, aluminum, steel, plastics, and food.In a circular economy, business models play a crucial role in enabling the shift from linear to circular processes. Various business models have been identified that support circularity, including product-as-a-service, sharing platforms, and product life extension models, among others. These models aim to optimize resource utilization, reduce waste, and create value for businesses and customers alike, while contributing to the overall goals of the circular economy.
In a linear economy, natural resources are turned into products that are ultimately destined to become waste because of the way they have been designed and manufactured. This process is often summarized by "take, make, waste". By contrast, a circular economy aims to transition from a 'take-make-waste' approach to a more restorative and regenerative system. It employs reuse, sharing, repair, refurbishment, remanufacturing and recycling to create a closed-loop system, reducing the use of resource inputs and the creation of waste, pollution and carbon emissions. The circular economy aims to keep products, materials, equipment and infrastructure in use for longer, thus improving the productivity of these resources. Waste materials and energy should become input for other processes through waste valorization: either as a component for another industrial process or as regenerative resources for nature (e.g., compost). The Ellen MacArthur Foundation (EMF) defines the circular economy as an industrial economy that is restorative or regenerative by value and design.Circular economy strategies can be applied at various scales, from individual products and services to entire industries and cities. For example, industrial symbiosis is a strategy where waste from one industry becomes an input for another, creating a network of resource exchange and reducing waste, pollution, and resource consumption. Similarly, circular cities aim to integrate circular principles into urban planning and development, fostering local resource loops and promoting sustainable lifestyles among their citizens. Less than 10% of economic activity worldwide in 2022 and 2023 has been circular.
Definition
There are many definitions of the circular economy. In China, CE is promoted as a top-down national political objective, while in other areas such as the European Union, Japan, and the USA it is a tool to design bottom-up environmental and waste management policies. The ultimate goal of promoting CE is the decoupling of environmental pressure from economic growth. A comprehensive definition could be: "Circular Economy is an economic system that targets zero waste and pollution throughout materials lifecycles, from environment extraction to industrial transformation, and final consumers, applying to all involved ecosystems. Upon its lifetime end, materials return to either an industrial process or, in the case of a treated organic residual, safely back to the environment as in a natural regenerating cycle. It operates by creating value at the macro, meso and micro levels and exploits to the fullest the sustainability nested concept. Used energy sources are clean and renewable. Resources use and consumption is efficient. Government agencies and responsible consumers play an active role in ensuring correct system long-term operation."More generally, circular development is a model of economic, social, and environmental production and consumption that aims to build an autonomous and sustainable society in tune with the issue of environmental resources. The circular economy aims to transform our economy into one that is regenerative. An economy that innovates to reduce waste and the ecological and environmental impact of industries prior to happening, rather than waiting to address the consequences of these issues. This is done by designing new processes and solutions for the optimization of resources, decoupling reliance on finite resources.The circular economy is a framework of three principles, driven by design: eliminate waste and pollution, keeping products and materials in use and regenerate natural systems. It is based increasingly on renewable energy and materials, and it is accelerated by digital innovation. It is a resilient, distributed, diverse, and inclusive economic model. The circular economy is an economic concept often linked to sustainable development, provision of the Sustainable Development Goals (Global Development Goals) and an extension of a green economy.Other definitions and precise thresholds that separate linear from circular activity have also been developed in the economic literature.
History and aims
The concept of a circular economy cannot be traced back to one single date or author, rather to different schools of thought.The concept of a circular economy can be linked to various schools of thought, including industrial ecology, biomimicry, and cradle-to-cradle design principles. Industrial ecology is the study of material and energy flows through industrial systems, which forms the basis of the circular economy. Biomimicry involves emulating nature's time-tested patterns and strategies in designing human systems. Cradle-to-cradle design is a holistic approach to designing products and systems that considers their entire life cycle, from raw material extraction to end-of-life disposal, and seeks to minimize waste and maximize resource efficiency. These interrelated concepts contribute to the development and implementation of the circular economy.General systems theory, founded by the biologist Ludwig von Bertalanffy, considers growth and energy for open and closed state systems. This theory was then applied to other areas such as, in the case of circular economy, to economics. Economist Kenneth E. Boulding, in his paper "The economics of the coming Spaceship Earth", argued that a circular economic system is a prerequisite for the maintenance of the sustainability of human life on Earth. Boulding describes the so-called "cowboy economy" as an open system in which the natural environment is typically perceived as limitless: no limit exists on the capacity of the outside to supply or receive energy and material flows.
Walter R. Stahel and Geneviève Reday-Mulvey in their book "The Potential for Substituting Manpower for Energy" lay the foundation for the principles of the circular economy by describing how increasing labour may reduce energy intensive activities.
Simple economic models have ignored the economy-environment interrelationships. Allan Kneese in "The Economics of Natural Resources" indicates how resources are not endlessly renewable, and mentions the term circular economy for the first time explicitly in 1988.In their book Economics of natural resources and the environment, Pearce and Turner explains the shift from the traditional linear or open-ended economic system to the circular economic system (Pearce and Turner (1990)). They describe an economic system where waste at extraction, production, and consumption stages is turned into inputs.
From the early 2000s, China integrated the notion into its industrial and environmental policies to make them resource-oriented, production-oriented, waste, use-oriented, and life cycle oriented. The Ellen MacArthur Foundation was instrumental in the diffusion of the concept in Europe and the Americas.In 2010, the concept of circular economy started to become popular internationally after the publication of several reports.The European Union introduced its vision of the circular economy in 2014, a New Circular Economy Action Plan having been launched in 2020 that "show the way to a climate-neutral, competitive economy of empowered consumers".The original diffusion of the notion benefited from three major events: the explosion of raw material prices between 2000 and 2010, the Chinese control of rare earth materials, and the 2008 economic crisis. Today, the climate emergency and environmental challenges induce companies and individuals into rethinking their production and consumption patterns, the circular economy is framed as one of the answers to these challenges. Key macro-arguments in favour of the circular economy are that it could enable an economic growth that does not add to the burden on natural resources extraction but decouples resource uses from the development of economic welfare for a growing population, reduce foreign dependence on critical materials, lowers CO2 emissions, reduce the production of waste and introduces new modes of production and consumption able to create further value. Corporate arguments in favour of the circular economy are that it could secure the supply of raw materials, reduces the price volatility of inputs and control costs, reduce spills and waste, extends the life cycle of products, serve new segments of customers, and generate long term shareholder value. A key idea behind the circular business models is to create loops throughout to recapture value that would otherwise be lost.Of particular concern is the irrevocable loss of raw materials due to their increase in entropy in the linear business model. Starting with the production of waste in manufacturing, the entropy increases further by mixing and diluting materials in their manufacturing assembly, followed by corrosion and wear and tear during the usage period. At the end of the life cycle, there is an exponential increase in disorder arising from the mixing of materials in landfills. As a result of this directionality of the entropy law, the world's resources are effectively "lost forever".Circular development is directly linked to the circular economy and aims to build a sustainable society based on recyclable and renewable resources, to protect society from waste and to be able to form a model that is no longer considering resources as infinite. This new model of economic development focuses on the production of goods and services, taking into account environmental and social costs. Circular development, therefore, supports the circular economy to create new societies in line with new waste management and sustainability objectives that meet the needs of citizens. It is about enabling economies and societies, in general, to become more sustainable.However, critiques of the circular economy suggest that proponents of the circular economy may overstate the potential benefits of the circular economy. These critiques put forwards that the circular economy has too many definitions to be delimited, making it an umbrella concept that, although exciting and appealing, is hard to understand and assess. Critiques mean that the literature ignores much-established knowledge. In particular, it neglects the thermodynamic principle that one can neither create nor destroy matter. Therefore, a future where waste no longer exists, where material loops are closed, and products are recycled indefinitely is, in any practical sense, impossible. They point out that a lack of inclusion of indigenous discourses from the Global South means that the conversation is less eco-centric than it depicts itself. That there is a lack of clarity as to whether the circular economy is more sustainable than the linear economy, and what its social benefits might be, in particular, due to diffuse contours. Other issues include the increasing risks of cascading failures which are a feature of highly interdependent systems, with potential harms to the general public. When implemented in bad faith, touted "Circular Economy" activities can often be little more than reputation and impression management for public relations purposes by large corporations and other vested interests; constituting a new form of greenwashing. It may thus not be the panacea many had hoped for.
Sustainability
Intuitively, the circular economy would appear to be more sustainable than the current linear economic system. Reducing the resources used, and the waste and leakage created, conserves resources and helps to reduce environmental pollution. However, it is argued by some that these assumptions are simplistic; that they disregard the complexity of existing systems and their potential trade-offs. For example, the social dimension of sustainability seems to be only marginally addressed in many publications on the circular economy. Some cases that might require different or additional strategies, like purchasing new, more energy-efficient equipment. By reviewing the literature, a team of researchers from Cambridge and TU Delft could show that there are at least eight different relationship types between sustainability and the circular economy. In addition, it is important to underline the innovation aspect at the heart of sustained development based on circular economy components.
Scope
The circular economy can cover a broad scope. Researchers have focused on different areas such as industrial applications with both product-oriented, natural resources and services, practice and policies to better understand the limitations that the CE currently faces, strategic management for details of the circular economy and different outcomes such as potential re-use applications and waste management.The circular economy includes products, infrastructure, equipment and services, and applies to every industry sector. It includes 'technical' resources (metals, minerals, fossil resources) and 'biological' resources (food, fibres, timber, etc.). Most schools of thought advocate a shift from fossil fuels to the use of renewable energy, and emphasize the role of diversity as a characteristic of resilient and sustainable systems. The circular economy includes a discussion of the role of money and finance as part of the wider debate, and some of its pioneers have called for a revamp of economic performance measurement tools. One study points out how modularisation could become a cornerstone to enabling a circular economy and enhancing the sustainability of energy infrastructure. One example of a circular economy model is the implementation of renting models in traditional ownership areas (e.g. electronics, clothes, furniture, transportation). By renting the same product to several clients, manufacturers can increase revenues per unit, thus decreasing the need to produce more to increase revenues. Recycling initiatives are often described as circular economy and are likely to be the most widespread models.By 2050, 9.3 billion tonnes of CO2 equivalent, or almost half of the global greenhouse gas emissions from the production of goods, might be reduced by implementing circular economy strategies in only five significant industries: cement, aluminum, steel, plastics, and food. That would equal to eliminating all current emissions caused by transportation.
Background
As early as 1966 Kenneth Boulding raised awareness of an "open economy" with unlimited input resources and output sinks, in contrast with a "closed economy", in which resources and sinks are tied and remain as long as a possible part of the economy. Boulding's essay "The Economics of the Coming Spaceship Earth" is often cited as the first expression of the "circular economy", although Boulding does not use that phrase.The circular economy is grounded in the study of feedback-rich (non-linear) systems, particularly living systems. The contemporary understanding of the Circular Economy and its practical applications to economic systems evolved incorporating different features and contributions from a variety of concepts sharing the idea of closed loops. Some of the relevant theoretical influences are cradle to cradle, laws of ecology (e.g., Barry Commoner § The Closing Circle), looped and performance economy (Walter R. Stahel), regenerative design, industrial ecology, biomimicry and blue economy (see section "Related concepts").The circular economy was further modelled by British environmental economists David W. Pearce and R. Kerry Turner in 1989. In Economics of Natural Resources and the Environment, they pointed out that a traditional open-ended economy was developed with no built-in tendency to recycle, which was reflected by treating the environment as a waste reservoir.In the early 1990s, Tim Jackson began to create the scientific basis for this new approach to industrial production in his edited collection Clean Production Strategies, including chapters from pre-eminent writers in the field, such as Walter R Stahel, Bill Rees and Robert Constanza. At the time still called 'preventive environmental management', his follow-on book Material Concerns: Pollution, Profit and Quality of Life synthesized these findings into a manifesto for change, moving industrial production away from an extractive linear system towards a more circular economy.
Emergence of the idea
In their 1976 research report to the European Commission, "The Potential for Substituting Manpower for Energy", Walter Stahel and Genevieve Reday sketched the vision of an economy in loops (or circular economy) and its impact on job creation, economic competitiveness, resource savings and waste prevention. The report was published in 1982 as the book Jobs for Tomorrow: The Potential for Substituting Manpower for Energy.In 1982, Walter Stahel was awarded third prize in the Mitchell Prize competition on sustainable business models with a paper The Product-Life Factor. First prize went to the then US Secretary of Agriculture, second prize to Amory and Hunter Lovins, and fourth prize to Peter Senge.Considered one of the first pragmatic and credible sustainability think tanks, the main goals of Stahel's institute are to extend the working life of products, to make goods last longer, to re-use existing goods and ultimately to prevent waste. This model emphasizes the importance of selling services rather than products, an idea referred to as the "functional service economy" and sometimes put under the wider notion of "performance economy". This model also advocates "more localization of economic activity".Promoting a circular economy was identified as a national policy in China's 11th five-year plan starting in 2006. The Ellen MacArthur Foundation has more recently outlined the economic opportunity of a circular economy, bringing together complementary schools of thought in an attempt to create a coherent framework, thus giving the concept a wide exposure and appeal.Most frequently described as a framework for thinking, its supporters claim it is a coherent model that has value as part of a response to the end of the era of cheap oil and materials, moreover contributing to the transition to a low-carbon economy. In line with this, a circular economy can contribute to meeting the COP 21 Paris Agreement. The emissions reduction commitments made by 195 countries at the COP 21 Paris Agreement are not sufficient to limit global warming to 1.5 °C. To reach the 1.5 °C ambition it is estimated that additional emissions reductions of 15 billion tonnes of CO2 per year need to be achieved by 2030. Circle Economy and Ecofys estimated that circular economy strategies may deliver emissions reductions that could bridge the gap by half.
Moving away from the linear model
Linear "take, make, dispose" industrial processes, and the lifestyles dependent on them, use up finite reserves to create products with a finite lifespan, which end up in landfills or in incinerators. The circular approach, by contrast, takes insights from living systems. It considers that our systems should work like organisms, processing nutrients that can be fed back into the cycle—whether biological or technical—hence the "closed loop" or "regenerative" terms usually associated with it. The generic circular economy label can be applied to or claimed by several different schools of thought, but all of them gravitate around the same basic principles.One prominent thinker on the topic is Walter R. Stahel, an architect, economist, and a founding father of industrial sustainability. Credited with having coined the expression "Cradle to Cradle" (in contrast with "Cradle to Grave", illustrating our "Resource to Waste" way of functioning), in the late 1970s, Stahel worked on developing a "closed loop" approach to production processes, co-founding the Product-Life Institute in Geneva. In the UK, Steve D. Parker researched waste as a resource in the UK agricultural sector in 1982, developing novel closed-loop production systems. These systems mimicked and worked with the biological ecosystems they exploited.
Cradle to Cradle
Circular economy often refers to quantities of recycled materials or reduced waste, however Cradle to Cradle Design focuses on quality of products including safety for humans and environmental health. Popularized by the book Cradle to Cradle: Remaking The Way We Make Things, Cradle to Cradle Design has been widely implemented by architect William McDonough, who was introduced as the "father of the circular economy" while receiving the 2017 Fortune Award for Circular Economy Leadership in Davos during the World Economic Forum.
Levels of circularity ("R" models)
In the 2010s, several models of a circular economy were developed that employed a set of steps, or levels of circularity, typically using English verbs or nouns starting with the letter "r". The first such model, known as the "Three R principle", was "Reduce, Reuse, Recycle", which can be traced back as early as the 1970s. According to Breteler (2022), the 'most comprehensive and extensive' of four compared models was the "10R principle", developed by sustainable entrepreneurship professor and former Dutch Environment Minister Jacqueline Cramer.
Towards the circular economy
In 2013, a report was released entitled Towards the Circular Economy: Economic and Business Rationale for an Accelerated Transition. The report, commissioned by the Ellen MacArthur Foundation and developed by McKinsey & Company, was the first volume of its kind to consider the economic and business opportunity for the transition to a restorative, circular model. Using product case studies and economy-wide analysis, the report details the potential for significant benefits across the EU. It argues that a subset of the EU manufacturing sector could realize net materials cost savings worth up to $630 billion annually towards 2025—stimulating economic activity in the areas of product development, remanufacturing and refurbishment. Towards the Circular Economy also identified the key building blocks in making the transition to a circular economy, namely in skills in circular design and production, new business models, skills in building cascades and reverse cycles, and cross-cycle/cross-sector collaboration. This is supported by a case study from the automotive industry, highlighting the importance of integrating a circular model holistically within the entire value chain of a company, taking into account the interdependencies between the product, process, and system level.Another report by WRAP and the Green Alliance (called "Employment and the circular economy: job creation in a more resource efficient Britain"), done in 2015 has examined different public policy scenarios to 2030. It estimates that, with no policy change, 200,000 new jobs will be created, reducing unemployment by 54,000. A more aggressive policy scenario could create 500,000 new jobs and permanently reduce unemployment by 102,000. The International Labour Organization predicts that implementing a circular economy by 2030 might result in an additional 7-8 million jobs being created globally. However, other research has also found that the adoption of circular economy principles may lead to job losses in emerging economies.On the other hand, implementing a circular economy in the United States has been presented by Ranta et al. who analyzed the institutional drivers and barriers for the circular economy in different regions worldwide, by following the framework developed by Scott R. In the article, different worldwide environment-friendly institutions were selected, and two types of manufacturing processes were chosen for the analysis (1) a product-oriented, and (2) a waste management. Specifically, in the U.S., the product-oriented company case in the study was Dell, a US manufacturing company for computer technology, which was the first company to offer free recycling to customers and to launch to the market a computer made from recycling materials from a verified third-party source. Moreover, the waste management case that includes many stages such as collection, disposal, recycling in study was Republic Services, the second-largest waste management company in the US. The approach to defining the drivers and barriers was to first identify indicators for their cases in study and then to categorize these indicators into drivers when the indicator was in favor of the circular economy model or a barrier when it was not.On 2 March 2022 in Nairobi, representatives of 175 countries pledged to create a legally binding agreement to end plastic pollution by the end of the year 2024. The agreement should address the full lifecycle of plastic and propose alternatives including reusability. The agreement is expected to facilitate the transition to a circular economy that will reduce GHG emissions by 25 per cent, according to the published statement.
Circular product design and standards
Product designs that optimize durability, ease of maintenance and repair, upgradability, re-manufacturability, separability, disassembly and reassembly are considered key elements for the transition toward circularity of products. Standardization can facilitate related "innovative, sustainable and competitive advantages for European businesses and consumers". Design for standardization and compatibility would make "product parts and interfaces suitable for other products and aims at multi-functionality and modularity". A "Product Family Approach" has been proposed to establish "commonality, compatibility, standardization, or modularization among different products or product lines".It has been argued that emerging technologies should be designed with circular economy principles from the start, including solar panels.
Design of circularity processes
For sustainability and health, the circularity process designs may be of crucial importance. Large amounts of electronic waste are already recycled but far from where they were consumed, with often low efficiency, and with substantial negative effects on human health and the foreign environment.Recycling should therefore "reduce environmental impacts of the overall product/service provision system assessed based on the life-cycle assessment approach".One study suggests that "a mandatory certification scheme for recyclers of electronic waste, in or out of Europe, would help to incentivize high-quality treatment processes and efficient material recovery".Digitalization may enable more efficient corporate processes and minimize waste.
Circular business models
While the initial focus of the academic, industry, and policy activities were mainly focused on the development of re-X (recycling, remanufacturing, reuse, etc.) technology, it soon became clear that the technological capabilities increasingly exceed their implementation. To leverage this technology for the transition toward a circular economy, various stakeholders have to work together. This shifted attention towards business-model innovation as a key leverage for 'circular' technology adaption. Rheaply, a platform that aims to scale reuse within and between organizations, is an example of a technology that focuses on asset management & disposition to support organizations transitioning to circular business models.Circular business models can be defined as business models that are closing, narrowing, slowing, intensifying, and dematerializing loops, to minimize the resource inputs into and the waste and emission leakage out of the organizational system. This comprises recycling measures (closing), efficiency improvements (narrowing), use phase extensions (slowing), a more intense use phase (intensifying), and the substitution of products by service and software solutions (dematerializing). These strategies can be achieved through the purposeful design of material recovery processes and related circular supply chains. As illustrated in the Figure, these five approaches to resource loops can also be seen as generic strategies or archetypes of circular business model innovation. The development of circular products, circular business models, and, more generally, the circular economy is conditioned upon the affordances of the materials involved, that is the enablement and constraints afforded by these materials to someone engaging with them for circular purposes.Circular business models, as the economic model more broadly, can have different emphases and various objectives, for example: extend the life of materials and products, where possible over multiple 'use cycles'; use a 'waste = food' approach to help recover materials, and ensure those biological materials returned to earth are benign, not toxic; retain the embedded energy, water, and other process inputs in the product and the material for as long as possible; Use systems-thinking approaches in designing solutions; regenerate or at least conserve nature and living systems; push for policies, taxes and market mechanisms that encourage product stewardship, for example 'polluter pays' regulations.Circular business models are enabled by circular supply chains. In practice, collaboration for circular supply chains can enable the creation, transfer, and/or capture of value stemming from circular business solutions. Collaboration in supply chains can extend to downstream and upstream partners, and include existing and new collaboration. Similarly, circular supply chain collaboration allows innovation into the circular business model, focusing on its processes, products, or services.
Digital circular economy
Building on circular business model innovation, digitalization and digital technologies (e.g., internet of things, big data, artificial intelligence, blockchain) are seen as a key enabler for upscaling the circular economy. Also referred to as the data economy, the central role of digital technologies for accelerating the circular economy transition is emphasized within the Circular Economy Action Plan of the European Green deal. The smart circular economy framework illustrates this by establishing a link between digital technologies and sustainable resource management. This allows assessment of different digital circular economy strategies with their associated level of maturity, providing guidance on how to leverage data and analytics to maximize circularity (i.e., optimizing functionality and resource intensity). Supporting this, a Strategic Research and Innovation Agenda for circular economy was published in the framework of the Horizon 2020 project CICERONE that puts digital technologies at the core of many key innovation fields (waste management, industrial symbiosis, products traceability). Researchers have emphasised the need to comply to several requirements for implementing blockchain technology in order to make a circular economy a reality.
Platform for Accelerating the Circular Economy (PACE)
In 2018, the World Economic Forum, World Resources Institute, Philips, Ellen MacArthur Foundation, United Nations Environment Programme, and over 40 other partners launched the Platform for Accelerating the Circular Economy (PACE). PACE follows on the legacy of WEF's CEO-led initiative, Project MainStream, which sought to scale up circular economy innovations. PACE's original intent has three focal areas:
developing models of blended finance for circular economy projects, especially in developing and emerging economies;
creating policy frameworks to address specific barriers to advancing the circular economy; and
promoting public–private partnership for these purposes.In 2020, PACE released a report with partner Circle Economy claiming that the world is 8.6% circular, claiming all countries are "developing countries" given the unsustainable levels of consumption in countries with higher levels of human development.PACE is a coalition of CEOs and Ministers—including the leaders of global corporations like IKEA, Coca-Cola, Alphabet Inc., and DSM, governmental partners and development institutions from Denmark, The Netherlands, Finland, Rwanda, UAE, China, and beyond. Initiatives currently managed under PACE include the Capital Equipment Coalition with Philips and numerous other partners and the Global Battery Alliance with over 70 partners. In January 2019, PACE released a report entitled "A New Circular Vision for Electronics: Time for a Global Reboot" (in support of the United Nations E-waste Coalition.The coalition is hosted by a Secretariat headed by David B. McGinty, former leader of the Human Development Innovation Fund and Palladium International, and board member of BoardSource. Board Members include Inger Andersen, Frans van Houten, Ellen MacArthur, Lisa P. Jackson, and Stientje van Veldhoven.
Circular economy standard BS 8001:2017
To provide authoritative guidance to organizations implementing circular economy (CE) strategies, in 2017, the British Standards Institution (BSI) developed and launched the first circular economy standard "BS 8001:2017 Framework for implementing the principles of the circular economy in organizations". The circular economy standard BS 8001:2017 tries to align the far-reaching ambitions of the CE with established business routines at the organizational level. It contains a comprehensive list of CE terms and definitions, describes the core CE principles, and presents a flexible management framework for implementing CE strategies in organizations. Little concrete guidance on circular economy monitoring and assessment is given, however, as there is no consensus yet on a set of central circular economy performance indicators applicable to organizations and individual products.
Development of ISO/TC 323 circular economy standard
In 2018, the International Organization for Standardization (ISO) established a technical committee, TC 323, in the field of circular economy to develop frameworks, guidance, supporting tools, and requirements for the implementation of activities of all involved organizations, to maximize the contribution to Sustainable Development. Four new ISO standards are under development and in the direct responsibility of the committee (consisting of 70 participating members and 11 observing members).
Strategic management in a circular economy
The CE does not aim at changing the profit maximization paradigm of businesses. Rather, it suggests an alternative way of thinking how to attain a sustained competitive advantage (SCA), while concurrently addressing the environmental and socio-economic concerns of the 21st century. Indeed, stepping away from linear forms of production most often leads to the development of new core competencies along the value chain and ultimately superior performance that cuts costs, improves efficiency, promote brand names, mitigate risks, develop new products, and meets advanced government regulations and the expectations of green consumers. But despite the multiple examples of companies successfully embracing circular solutions across industries, and notwithstanding the wealth of opportunities that exist when a firm has clarity over what circular actions fit its unique profile and goals, CE decision-making remains a highly complex exercise with no one-size-fits-all solution. The intricacy and fuzziness of the topic is still felt by most companies (especially SMEs), which perceive circular strategies as something not applicable to them or too costly and risky to implement. This concern is today confirmed by the results of ongoing monitoring studies like the Circular Readiness Assessment.Strategic management is the field of management that comes to the rescue allowing companies to carefully evaluate CE-inspired ideas, but also to take a firm apart and investigate if/how/where seeds of circularity can be found or implanted. Prior research has identified strategic development for circularity to be a challenging process for companies, demanding multiple iterative strategic cycles. The book Strategic Management and the Circular Economy defined for the first time a CE strategic decision-making process, covering the phases of analysis, formulation, and planning. Each phase is supported by frameworks and concepts popular in management consulting—like idea tree, value chain, VRIE, Porter's five forces, PEST, SWOT, strategic clock, or the internationalization matrix—all adapted through a CE lens, hence revealing new sets of questions and considerations. Although yet to be verified, it is argued that all standard tools for strategic management can and should be calibrated and applied to a CE. A specific argument has already been made for the strategy direction matrix of product vs market and the 3 × 3 GE-McKinsey matrix to assess business strength vs industry attractiveness, the BCG matrix of market share vs industry growth rate, and Kraljic's portfolio matrix.
Engineering the Circular Lifecycle
The engineering lifecycle is a well established approach in the design and systems engineering of complex and certified systems. It refers to the series of stages that a complex engineered product passes through, from initial concept and design, through to production, use, and end-of-life management. The approach is commonly used in heavy manufacturing and heavily regulated industries (for example aviation).
Complex and certified engineering systems however include many of the smaller products encountered on a daily basis, for example bicycles and household appliances. Implementing the principles of circularity requires all engineering design teams to take a lifecycle approach to the product.
The Circular Lifecycle for Complex Engineering Systems
Building on both the engineering lifecycle and the principles of the circular economy, the Circular Lifecycle for Complex Engineering Systems newly established framework, "Circular Lifecycle for Complex Engineering Systems", forms the core of this approach. This framework advocates for a reassessment of recognized engineering disciplines with an emphasis on integrating less familiar circular principles. It particularly focuses on designing to meet user needs, the application of established engineering disciplines to achieve product longevity, engineering for the transition to renewable energy sources, and maximizing value generation from waste.As with the traditional engineering lifecycle, this approach can be applied to all engineering systems, with the depth of activity tailored depending on the complexity of the product. and can that incorporate multiple inter requiring planning, substantial resource consumption, and prolonged service lifetimes.
Lifecycle-Value Stream Matrix
Key to implementing the circular lifecycle for complex engineering systems is ensuring the engineering design team have a solid understanding of the product's ecosystem. The Lifecycle-Value Stream Matrix for complex and certified circular systems assists engineers and product design teams in visualizing the product's ecosystem more effectively. It enables engineers to map the intricate ecosystem surrounding their products, leading to the identification of potential strategic partners and novel opportunities for technology and service innovation.
The matrix captures the value stream for various suppliers providing increasing levels of complexity of products and services. It is important to note that these suppliers will change throughout the life cycle. In the design phase of the complex engineering system, traditionally, the systems-level suppliers would only be those suppliers who are integrating the engineering system itself. Later in the life cycle, the initial systems-level suppliers will be joined by other suppliers operating at a systems level, who may deliver products and services that facilitate the operation and usage of the initial engineering system.
Circular Engineering Lifecycle Implementation Challenges and Opportunities
Adopting an engineering circular lifecycle approach undeniably brings a considerable set of challenges. Complex engineering systems, especially those with extended lifecycles and intricate safety and certification governance frameworks, may encounter difficulties while transitioning to renewable energy sources. However, the circular lifecycle concept is adaptable to a broad range of manufactured and engineered products, affirming its universal applicability.
The primary challenge within organizations will be a mindset shift and establishment of these innovative methodologies. Despite these hurdles, the implementation of this engineering lifecycle approach holds enormous potential for both consumers and businesses. This is especially true when a collaborative, through-life service approach is applied, highlighting the vast economic opportunities that can arise from embracing circularity in engineering lifecycles.
Adoption and applications by industry
Textile industry
A circular economy within the textiles industry refers to the practice of clothes and fibers continually being recycled, to re-enter the economy as much as possible rather than ending up as waste.A circular textiles economy is in response to the current linear model of the fashion industry, "in which raw materials are extracted, manufactured into commercial goods and then bought, used and eventually discarded by consumers" (Business of Fashion, 2017). 'Fast fashion' companies have fueled the high rates of consumption which further magnify the issues of a linear system. "The take-make-dispose model not only leads to an economic value loss of over $500 billion per year but also has numerous negative environmental and societal impacts" (Business of Fashion, 2018). Such environmental effects include tons of clothing ending up in landfills and incineration, while the societal effects put human rights at risk. A documentary about the world of fashion, The True Cost (2015), explained that in fast fashion, "wages, unsafe conditions, and factory disasters are all excused because of the needed jobs they create for people with no alternatives." This shows that fast fashion is harming the planet in more ways than one by running on a linear system.It is argued that by following a circular economy, the textile industry can be transformed into a sustainable business. A 2017 report, "A New Textiles Economy", stated the four key ambitions needed to establish a circular economy: "phasing out substances of concern and microfiber release; transforming the way clothes are designed, sold and used to break free from their increasingly disposable nature; radically improving recycling by transforming clothing design, collection, and reprocessing; and making effective use of resources and moving to renewable input." While it may sound like a simple task, only a handful of designers in the fashion industry have taken charge, including Patagonia, Eileen Fisher, Nathalia JMag and Stella McCartney. An example of a circular economy within a fashion brand is Eileen Fisher's Tiny Factory, in which customers are encouraged to bring their worn clothing to be manufactured and resold. In a 2018 interview, Fisher explained, "A big part of the problem with fashion is overconsumption. We need to make less and sell less... you get to use your creativity but you also get to sell more but not create more stuff."Circular initiatives, such as clothing rental start-ups, are also getting more and more highlight in the EU and in the US as well. Operating with circular business model, rental services offer everyday fashion, baby wear, maternity wear for rent. The companies either offer flexible pricing in a 'pay as you rent' model like Palanta does, or offer fixed monthly subscriptions such as Rent The Runway or Le Tote.Another circular initiative is offering a take-back program. A company located in Colorado Circular Threads repurposes post-consumer waste materials such as old denim jeans, retired climbing rope, and discarded sails into new products, rather than letting them go to a landfill. Their take back program allows the consumer to return any product at any time so that it can be recycled again.Both China and Europe have taken the lead in pushing a circular economy. McDowall et al. 2017 stated that the "Chinese perspective on the circular economy is broad, incorporating pollution and other issues alongside waste and resource concerns, [while] Europe's conception of the circular economy has a narrower environmental scope, focusing on waste and resources and opportunities for business".
Construction industry
The construction sector is one of the world's largest waste generators. The circular economy appears as a helpful solution to diminish the environmental impact of the industry.
Construction is very important to the economy of the European Union and its state members. It provides 18 million direct jobs and contributes to about 9% of the EU's GDP. The main causes of the construction's environmental impact are found in the consumption of non-renewable resources and the generation of contaminant residues, both of which are increasing at an accelerating pace. In the European Union alone, people and companies generate more than 2 billion tonnes of garbage year, or 4.8 tonnes per person, mostly from the building, mining, and manufacturing sectors. Each individual in Europe generates half a tonne of municipal garbage annually, less than half of which gets recycled.Decision making about the circular economy can be performed on the operational (connected with particular parts of the production process), tactical (connected with whole processes) and strategic (connected with the whole organization) levels. It may concern both construction companies as well as construction projects (where a construction company is one of the stakeholders).End-of-life buildings can be deconstructed, hereby creating new construction elements that can be used for creating new buildings and freeing up space for new development.Modular construction systems can be useful to create new buildings in the future, and have the advantage of allowing easier deconstruction and reuse of the components afterwards (end-of-life buildings).Another example that fits the idea of circular economy in the construction sector on the operational level, there can be pointed walnut husks, that belong to hard, light and natural abrasives used for example in cleaning brick surfaces. Abrasive grains are produced from crushed, cleaned and selected walnut shells. They are classified as reusable abrasives. A first attempt to measure the success of circular economy implementation was done in a construction company. The circular economy can contribute to creating new posts and economic growth. According to Gorecki, one of such posts may be the Circular economy manager employed for construction projects.
Automotive industry
The circular economy is beginning to catch on inside the automotive industry. A case study within the heavy-duty and off-road industry analyses the implementation of circular practices into a lean manufacturing context, the currently dominant production strategy in automotive. Lean has continuously shown to increase efficiency by eliminating waste and focusing on customer value, contributing to eco-efficiency by narrowing resource loops. However, other measures are needed to slow down and close the resource loops altogether and reach eco-effectiveness. The study finds significant potentials by combining the lean and the circular approach, to not only focus on the product and process levels (eco-efficiency), but also on the system perspective (eco-effectiveness). There are also incentives for carmakers to do so as a 2016 report by Accenture stated that the circular economy could redefine competitiveness in the automotive sector in terms of price, quality, and convenience and could double revenue by 2030 and lower the cost base by up to fourteen percent. So far, it has typically translated itself into using parts made from recycled materials, remanufacturing of car parts and looking at the design of new cars. Remanufacturing is currently limited to provide spare parts, where a common use is remanufacturing gearboxes, which has the potential of reducing the global warming potential (CO2-eq) by 36% compared to a newly manufactured one. With the vehicle recycling industry (in the EU) only being able to recycle just 75% of the vehicle, meaning 25% is not recycled and may end up in landfills, there is much to improve here. In the electric vehicle industry, disassembly robots are used to help disassemble the vehicle. In the EU's ETN-Demeter project (European Training Network for the Design and Recycling of Rare-Earth Permanent Magnet Motors and Generators in Hybrid and Full Electric Vehicles) they are looking at the sustainable design issue. They are for example making designs of electric motors of which the magnets can be easily removed for recycling the rare earth metals.Some car manufacturers such as Volvo are also looking at alternative ownership models (leasing from the automotive company; "Care by Volvo").
Logistics industry
The logistics industry plays an important role in the Dutch economy because the Netherlands is located in a specific area where the transit of commodities takes place on a daily basis. The Netherlands is an example of a country from the EU that has increasingly moved towards incorporating a circular economy given the vulnerability of the Dutch economy (as well as other EU countries) to be highly dependable on raw materials imports from countries such as China, which makes the country susceptible to the unpredictable importation costs for such primary goods.Research related to the Dutch industry shows that 25% of the Dutch companies are knowledgeable and interested in a circular economy; furthermore, this number increases to 57% for companies with more than 500 employees. Some of the areas are chemical industries, wholesale trade, industry and agriculture, forestry and fisheries because they see a potential reduction of costs when reusing, recycling and reducing raw materials imports. In addition, logistic companies can enable a connection to a circular economy by providing customers incentives to reduce costs through shipment and route optimization, as well as, offering services such as prepaid shipping labels, smart packaging, and take-back options. The shift from linear flows of packaging to circular flows as encouraged by the circular economy is critical for the sustainable performance and reputation of the packaging industry. The government-wide program for a circular economy is aimed at developing a circular economy in the Netherlands by 2050.Several statistics have indicated that there will be an increase in freight transport worldwide, which will affect the environmental impacts of the global warming potential causing a challenge to the logistics industry. However, the Dutch council for the Environment and Infrastructure (Dutch acronym: Rli) provided a new framework in which it suggests that the logistics industry can provide other ways to add value to the different activities in the Dutch economy. Examples of adding value in innovative ways to the Dutch economy are an exchange of resources (either waste or water flows) for production from different industries and changing the transit port to a transit hub concept. The Rli studied the role of the potentials of the logistics industry for three sectors, agriculture and food, chemical industries and high tech industries.
Agriculture
The Netherlands, aiming to have a completely circular economy by 2050, intends a shift to circular agriculture as part of this plan. This shift plans on having a "sustainable and strong agriculture" by as early as 2030. Changes in the Dutch laws and regulations will be introduced. Some key points in this plant include:
closing the fodder-manure cycle
reusing as much waste streams as possible (a team Reststromen will be appointed)
reducing the use of artificial fertilizers in favor of natural manure
providing the chance for farms within experimentation areas to deviate from law and regulations
implementing uniform methods to measure the soil quality
providing the opportunity to agricultural entrepreneurs to sign an agreement with the Staatsbosbeheer ("State forest management") to have it use the lands they lease for natuurinclusieve landbouw ("nature-inclusive management")
providing initiatives to increase the earnings of farmers
Furniture industry
When it comes to the furniture industry, most of the products are passive durable products, and accordingly implementing strategies and business models that extend the lifetime of the products (like repairing and remanufacturing) would usually have lower environmental impacts and lower costs. Companies such as GGMS are supporting a circular approach to furniture by refurbishing and reupholstering items for reuse.The EU has seen a huge potential for implementing a circular economy in the furniture sector. Currently, out of 10,000,000 tonnes of annually discarded furniture in the EU, most of it ends up in landfills or is incinerated. There is a potential increase of €4.9 billion in Gross Value Added by switching to a circular model by 2030, and 163,300 jobs could be created.A study about the status of Danish furniture companies' efforts on a circular economy states that 44% of the companies included maintenance in their business models, 22% had take-back schemes, and 56% designed furniture for recycling. The authors of the study concluded that although a circular furniture economy in Denmark is gaining momentum, furniture companies lack knowledge on how to effectively transition, and the need to change the business model could be another barrier.Another report in the UK saw a huge potential for reuse and recycling in the furniture sector. The study concluded that around 42% of the bulk waste sent to landfills annually (1.6 million tonnes) is furniture. They also found that 80% of the raw material in the production phase is waste.
Oil and gas industry
The uptake to reuse within the oil and gas industry is very poor, the opportunity to reuse is never more evident, or possible, as when the equipment is being decommissioned. Hundreds of thousands of tons of waste are being brought back onshore to be recycled. Unfortunately, what this equates to; is equipment, which is perfectly suitable for continued use, being disposed of.In the next 30–40 years, the oil and gas sector will have to decommission 600 installations in the UK alone. Over the next decade around 840,000 tonnes of materials will have to be recovered at an estimated cost of £25Bn. In 2017 North Sea oil and gas decommissioning became a net drain on the public purse. With UK taxpayers covering 50%–70% of the bill, there is an urgent need to discuss the most economic, social and environmentally beneficial decommissioning solutions for the general public.Organizations such as Zero Waste Scotland have conducted studies to identify areas with reuse potential, allowing equipment to continue life in other industries, or be redeployed for oil and gas .
Renewable energy industry
Oil and gas energy resources are incompatible with the idea of a circular economy, since they are defined as "development that meets the needs of the present while compromising the ability of future generations to meet their own needs". A sustainable circular economy can only be powered by renewable energies, such as wind, solar, hydropower, and geothermal.What gives entities the ability to achieve 'net zero' carbon-emissions, is that they can offset their fossil fuel consumption by removing carbon from the atmosphere. While this is a necessary first step, global smart grid technologist, Steve Hoy, believes that in order to create a circular economy we should adapt the concept of 'True Zero' as opposed to 'net zero', which is eliminating fossil fuel consumption entirely so that all energy is produced from renewable sources.Current growth projections in the renewable energy industry expect a significant amount of energy and raw materials to manufacture and maintain these renewable systems. "Due to the emissions attributed to fossil-fuel electricity generation, the overall carbon footprint of renewable energy technologies is significantly lower than for fossil-fuel generation over the respective systems lifespan." However, there are still linear trajectories when establishing renewable energy systems that should be assessed in order to fully transition to a circular economy.
Education industry
In 2018, The Ellen MacArthur Foundation identified 138 institutions with circular economy course offerings. Since then the theme of CE topics in teaching has been incorporated at a steadily increasing pace, with plans for adoption at university, city, and country wide levels. Zero Waste Scotland is an example of a country wide program that plans to implement CE into the Scottish education system through the "YES Circular Economy Challenge" which advocates that "every learning environment should have a whole-environment approach to learning for sustainability that is robust, demonstrable, evaluated and supported by leadership at all levels". A 2021 report by the EMF compares London and New York CE course offerings and finds that there is not a "whole-environment" representation when it comes to different CE topics, with an element of the technical CE cycle being covered in 90% and element of the biological cycle covered in 50% of the 80 analyzed circular economy courses. The EMF looks critically at the distribution of CE courses and researchers at Utrecht University Julian Kirchherr and Laura Piscicelli analyze the success of their introductory CE course in "Towards an Education for the Circular Economy (ECE): Five Teaching Principles and a Case Study". With 114 published definitions for the Circular Economy, synthesis and collaboration, previously exemplified, could benefit and popularize CE application in higher education.
Plastic waste management
Laws related to recyclability, waste management, domestic materials recovery facilities, product composition, biodegradability and prevention of import/export of specific wastes may support prevention of plastic pollution. A study considers producer/manufacturer responsibility "a practical approach toward addressing the issue of plastic pollution", suggesting that "Existing and adopted policies, legislations, regulations, and initiatives at global, regional, and national level play a vital role".Standardization of products, especially of packaging which are, as of 2022, often composed of different materials (each and across products) that are hard or currently impossible to either separate or recycle together in general or in an automated way could support recyclability and recycling.
For instance, there are systems that can theoretically distinguish between and sort 12 types of plastics such as PET using hyperspectral imaging and algorithms developed via machine learning while only an estimated 9% of the estimated 6.3 billion tonnes of plastic waste from the 1950s up to 2018 has been recycled (12% has been incinerated and the rest reportedly being "dumped in landfills or the natural environment").
Rare-earth elements recovery
Potential methods
The rare-earth elements (REEs) are vital to modern technologies and society and are amongst the most critical elements. Despite this, typically only around 1% of REEs are recycled from end-products, with the rest deporting to waste and being removed from the materials cycle. Recycling and reusing REEs play an important role in high technology fields and manufacturing environmentally friendly products all around the world.REE recycling and reuse have been increasingly focused on in recent years. The main concerns include environmental pollution during REE recycling and increasing recycling efficiency. Literature published in 2004 suggests that, along with previously established pollution mitigation, a more circular supply chain would help mitigate some of the pollution at the extraction point. This means recycling and reusing REEs that are already in use or reaching the end of their life cycle. A study published in 2014 suggests a method to recycle REEs from waste nickel-metal hydride batteries, demonstrating a recovery rate of 95.16%. Rare-earth elements could also be recovered from industrial wastes with practical potential to reduce environmental and health impacts from mining, waste generation, and imports if known and experimental processes are scaled up. A study suggests that "fulfillment of the circular economy approach could reduce up to 200 times the impact in the climate change category and up to 70 times the cost due to the REE mining." In most of the reported studies reviewed by a scientific review, "secondary waste is subjected to chemical and or bioleaching followed by solvent extraction processes for clean separation of REEs."Currently, people take two essential resources into consideration for the secure supply of REEs: one is to extract REEs from primary resources like mines harboring REE-bearing ores, regolith-hosted clay deposits, ocean bed sediments, coal fly ash, etc. A work developed a green system for recovery of REEs from coal fly ash by using citrate and oxalate who are strong organic ligand and capable of complexing or precipItating with REE. The other one is from secondary resources such as electronic, industrial waste and municipal waste. E-waste contains a significant concentration of REEs, and thus is the primary option for REE recycling now. According to a study, approximately 50 million metric tons of electronic waste are dumped in landfills worldwide each year. Despite the fact that e-waste contains a significant amount of rare-earth elements (REE), only 12.5% of e-waste is currently being recycled for all metals.
Challenges
For now, there are some obstacles during REE recycling and reuse. One big challenge is REE separation chemistry. Specifically, the process of isolating and refining individual rare earth elements (REE) presents a difficulty due to their similar chemical properties. In order to reduce the environmental pollution released during REE isolation and also diversify their sources, there is a clear necessity for the development of novel separation technologies that can lower the cost of large-scale REE separation and recycling. In this condition, the Critical Materials Institute (CMI) under the Department of Energy has devised a technique that involves utilizing Gluconobacter bacteria to metabolize sugars, producing acids that can dissolve and separate rare-earth elements (REE) from shredded electronic waste.
One study suggests that by 2050, up to 40 to 75% of the EU's clean energy metal needs could come from local recycling.A study estimates losses of 61 metals, showing that usespans of, often scarce, tech-critical metals are short. A study using Project Drawdown's modeling framework indicates that, even without considering costs or bottlenecks of expansion of renewable energy generation, metal recycling can lead to significant climate change mitigation.
Chemistry
Researchers have developed recycling-routes for 200 industrial waste chemicals into important drugs and agrochemicals, for productive reuse that reduces disposal costs and hazards to the environment. A study has called for new molecules and materials for products with open-environmental applications, such as pesticides, that can be neither circulated nor recycled and provides a set of guidelines on how to integrate chemistry into a circular economy.
Circular developments around the world
Overview
Already since 2006, the European Union has been concerned about environmental transition issues by translating this into directives and regulations. Three important laws can be mentioned in this regard:
The Ecodesign Framework Directive
The Waste Framework Directive
The Registration, Evaluation, Authorisation and Restriction of Chemicals RegulationOn 17 December 2012, the European Commission published a document entitled "Manifesto for a Resource Efficient Europe".In July 2014, a zero-waste program for Europe has been put in place aiming at the circular economy. Since then, several documents on this subject have been published. The following table summarizes the various European reports and legislation on the circular economy that have been developed between 2014 and 2018.
In addition to the above legislation, the EU has amended the Eco-design Working Plan to add circularity criteria and has enacted eco-design regulations with circular economy components for 7 product types (refrigerators, dishwashers, electronic displays, washing machines, welding equipment and servers and data storage products). These eco-design regulations are aimed at increasing the reparability of products by improving the availability of spare parts and manuals. At the same time, the European research budget related to the circular economy has increased considerably in the last few years: it has reached 964 million euros between 2018 and 2020. In total, the European Union has invested 10 billion euros on Circular Economy projects between 2016 and 2019.One waste atlas aggregates some data about waste management of countries and cities, albeit the data is very limited.The "Circularity Gap Report" indicates that "out of all the minerals, biomass, fossil fuels and metals that enter the world's economy, only 8.6 percent are reused".
Programs
The "Manifesto for a Resource Efficient Europe" of 2012 clearly stated that "In a world with growing pressures on resources and the environment, the EU has no choice but to go for the transition to a resource-efficient and ultimately regenerative circular economy." Furthermore, the document highlighted the importance of "a systemic change in the use and recovery of resources in the economy" in ensuring future jobs and competitiveness, and outlined potential pathways to a circular economy, in innovation and investment, regulation, tackling harmful subsidies, increasing opportunities for new business models, and setting clear targets.The European environmental research and innovation policy aims at supporting the transition to a circular economy in Europe, defining and driving the implementation of a transformative agenda to green the economy and the society as a whole, to achieve a truly sustainable development. Research and innovation in Europe are financially supported by the program Horizon 2020, which is also open to participation worldwide. Circular economy is found to play an important role to economic growth of European Countries, highlighting the crucial role of sustainability, innovation, and investment in no-waste initiatives to promote wealth.The European Union plans for a circular economy are spearheaded by its 2018 Circular Economy Package. Historically, the policy debate in Brussels mainly focused on waste management which is the second half of the cycle, and very little is said about the first half: eco-design. To draw the attention of policymakers and other stakeholders to this loophole, the Ecothis, an EU campaign was launched raising awareness about the economic and environmental consequences of not including eco-design as part of the circular economy package.In 2020, the European Union released its Circular Economy Action Plan.
"Closing the loop" (December 2015 – 2018)
This first circular economy Action Plan consisted of 54 measures to strengthen Europe's global competitiveness, promote sustainable economic growth and create more jobs. Among these 54 measures, for example, is the importance of optimizing the use of raw materials, products and waste in order to create energy savings and reduce greenhouse gas emissions. The main goal being in this respect to lead to the development of a framework conducive to the circular economy. In addition, the development of this Action Plan was also intended to enable the development of a new market for secondary raw materials. Concretely, here are the principal areas concerned by the Action Plan:
Production
Consumption
Waste Management
Boosting markets for secondary materials
Innovation, investment and 'horizontal' measures
Monitoring progressThe Action plan was also a way to integrate a policy framework, an integration of existing policies and legal instruments. It includes notably some amendments. As a matter of fact, the implementation of this new plan was supported by the European Economic and Social Committee (EESC). This support included in-depth consultation.
Circular Economy Action Plan of 2020
This new action was adopted by the European Commission in March 2020. A total of 574 out of 751 MEPs voted in favour of the action plan. It focuses on better management of resource-intensive industries, waste reduction, zero-carbonization and standardization of sustainable products in Europe. Prior to the development of this new action plan, we can also mention the Green Deal of 2019, which integrated ecological and environmental ambitions to make Europe a carbon-neutral continent. On 10 February 2021, the European Parliament submitted its proposals to the Circular Economic Action Plan (CEAP) of the commission, highlighting five major areas in particular. Those are the following:
Batteries
Construction and Buildings
ICT
Plastics
TextilesTwo additional sectors on which the CEAP focuses could be added: packaging & food and water.
Countries ranking
The European leaders in terms of circular economy are designated mostly by their current efforts for a shift towards circular economy but also by their objectives and the means implemented in this shift. It remains difficult to precisely rank how countries score in terms of circular economy, given the many principles and aspects of it and how differently one single country can score in each of these principles but some tendencies do appear in the average score, when combining the principles.
The Netherlands: the government aims to reuse 50% of all materials as far as possible by 2030 and to convert waste into reusable materials anywhere it is possible. The next goal is then to make the country shift towards a 100% waste-free economy by 2050. These objectives were all set from 2016 to 2019 in a series of programs for a governmental circular economy, raw materials agreements and transition agendas focusing on the five most important sectors for waste: biomass and food, plastics, manufacturing industry, construction and consumer goods.
Germany: Germany is a leader in some aspects of circular economy, like waste management and recycling.
France is also adding several texts and measures for a better circular economy in the country such as the roadmap for circular economy in 2018, consisting of 50 measures for a successful transition to circular economy.
Belgium is also a consequent actor in the field. It scored second in the circular material use rate, before France but after the Netherlands. In the other principles of circular economy, it usually scores in the top 5.Other notable countries are Italy, the United Kingdom, Austria, Slovenia, and Denmark.Outside the EU, countries such as Brazil, China, Canada, the US and especially Japan are working on the shift towards it.Most countries that are in the lead in the field of circular economy are European countries, meaning that Europe in general is in the lead group at the moment. The reasons behind this are numerous. First of all, circular economy is a field that is, at the moment mostly advanced in the developed countries, thanks to, between others, technology. The efforts of the European Commission are also non negligible, with documents such as the Commission staff working document "Leading the way to a global circular economy: state of play and outlook" or the new action plan for circular economy in Europe, being one of the main blocs of the green deal.Even if Europe as a whole is a good actor in the field, some European countries are still struggling to make the shift faster. These countries are mostly the eastern European countries (Romania, Hungary, Bulgaria, Slovakia, etc.) but also in some fields Portugal, Greece, Croatia and even Germany.In 2018, the newspaper Politico made a ranking of the (by then) 28 European countries by making an aggregation of the seven key metrics of the commission for each country. The advantage here is that it gives a general view of how countries work towards circular development and how they compare to each other but the main drawback is that, as mentioned in the article, the seven metrics all have equal weight and importance in Politico's calculations, which is not the case in real life. Indeed, it is said in the same article that the countries that score the highest in CE are not necessarily the greenest according to the Environmental Performance Index. For example, Germany, which scores 1st in the Politico ranking, only scores 13th worldwide in the EPI and is behind 10 European countries.
Calendar
Europe
Since 2015, there is a plan concerning the circular economy adopted by the European Commission. This first plan includes 54 actions. There are also 4 legislative proposals with the objective of legal change.
a) the framework directive on waste
b) the directive on the landfill of waste
c) the directive on packaging and packaging waste
d) the directive on batteries and accumulators and their waste.During the 2018 negotiations between the Parliament and the council, different elements will be adopted in four directives. These are mainly: « The main objectives are the following in the European framework
Minimum 65% of municipal waste to be recycled by 2035
Minimum 70% of all packaging waste to be recycled by 2030
Maximum 10% of municipal waste to be landfilled by 2035
Certain types of single use plastic will be prohibited to place on market as of July 2021
Minimum 32% of the Union's gross final consumption of energy to originate from renewable sources by 2030.The main objectives are the following in the European framework Since 2020, Europe's new green deal plan focuses on "design and production from the perspective of the circular economy", its main objective is to ensure that the European economy keeps these resources as long as possible.
The action plan of this circular development is mainly based on different objectives. They are:
"To make sustainable products the norm in the EU.
To empower consumers to choose.
Focusing on the most resource-intensive sectors with a high potential to contribute to the circular economy.
Ensure less waste."Europe's green deal, which came into being in 2019, aims at a climate-neutral circular economy. For this, a distinct difference between economic growth and resources will be found. "A circular economy reduces the pressure on natural resources and is an indispensable prerequisite for achieving the goal of climate neutrality by 2050 and halting biodiversity loss."
Benelux
Belgium
Since 2014, Belgium has adopted a circular strategy. This is marked by 21 measures to be followed. In Belgium, the three Belgian regions (Flanders, Brussels and Wallonia) have different personal objectives. For Flanders, a strategy called vision 2050 has been put in place. For Wallonia, there is a plan following the declaration of the regional policy for Wallonia from 2019 to 2024. Since 23 January 2020, Wallonia has adopted a new strategy including three governance bodies: a steering committee, an intra-administration platform and a steering committee??.
For Brussels, a plan was adopted in 2016 to develop the circular economy in its region. This plan will be in place for a period of 10 years.
The Netherlands
The Netherlands set a plan of action for circular economy in 2016 and have been doing additional efforts for a transition towards a 100% circular economy by 2050 (and 50% by 2030). The Netherlands Organization for Applied Scientific Research estimates that a full shift towards Circular Economy will, at the long term, generate not less than 7.3 billion euros and 540,000 new jobs in the sector. The work will be developed around the five pillars mentioned above: plastics, biomass and food, the construction sector, the manufacturing industry, and consumer goods. The government has also put a fund in place to facilitate and accelerate the shift. These funds are part of the 300 million € annually spent by the government for climate-related decisions and actions. The envelope is also completed by the ministry of infrastructure, which allocated €40 million for circular economy-related actions in 2019 and 2020. Other actions such as an allocation of subsidies for enterprises that make change or invest in the field have been taken. Initiatives at the subnational level are also encouraged and regions such as Groningen, Friesland, the Northern Netherlands, etc. ere taking actions to not only reduce their environmental impact but accelerate and accentuate their actions towards Circular economy.
The Grand Duchy of Luxembourg
CE is one of the major deals of the 2018-2023 Luxembourg government.
The Luxembourg added in 2019 Circular economy in their data-driven innovation strategy, considering it now as a crucial field for innovation in the next years. It is present in most sectors of the country's development plan even if it is still only at the beginning of its development.More initiatives are starting to emerge, however, to develop better in the field:
The 2019 "Circular economy strategy Luxembourg", a document testifying on the efforts made and to be made and the willingness to transform the Grand Duchy into an example in the field;
Holistic strategic studies such as the "strategic group for circular economy";
Insertion of circular economy as a subject to be discussed by all the six main pillars of the "third industrial revolution";
Creation of the Fit4Circularity program to allocate funds to innovative businesses in the field;
Participation in Circular economy-related events such as "Financing the circular economy" (2015) at the European Investment Bank or the "Circular economy hotspot" (2017);
Work on educational tools in the field;
Collaboration with municipalities, at the subnational level, to encourage them to become more circular;
The establishment of value chains for local materials such as wood and a better management of raw materials in general;
A cooperation between the public and the private sector;
The 'Product Circularity Data Sheet' (PCDS) launched in 2019 by the government to study and determine the circular potential of products and materials;
An implementation of tools and methods such as a regulatory framework (laws), a financial framework (financial helps and sanctions), creation, management and sharing of knowledge on the subject, etc.;
A coordination of the Luxembourg goals with the SDGs and the 2030 agenda.
Circular bioeconomy
The bio-economy, especially the circular bio-economy, decreases dependency on natural resources by encouraging sustainable goods that generate food, materials, and energy using renewable biological resources (such as lupins). According to the European Commission's EU Science Center, the circular bioeconomy produces €1.5 trillion in value added, accounting for 11% of EU GDP. The European Investment Bank invests between €6 billion and €9 billion in the bio-economy per year.
The European Circular Bioeconomy Fund
Eligibility requirements and core terms of reference for an equity and mezzanine debt fund were established by the European Investment Bank and the European Commission directorates-general for agriculture and research and innovation. As a result, an investment adviser was chosen, and the European Circular Bioeconomy Fund was created. As of 2023, a €65 million investment from the EIB has been made.The European Circular Bioeconomy Fund invests in early-stage companies with developed innovations that are searching for funds to broaden their activities and reach new markets. It specifically invests in:
circular/bio-economy technologies
biomass/feed stock production that boots agricultural productivity while lowering environmental impact
biomass/feed stock technologies that result in higher-value, green goods
bio-based chemicals and materials
biological alternatives in fields such as cosmetics.
Circular Carbon Economy
During the 2019 COP25 in Madrid, William McDonough and marine ecologist Carlos Duarte presented the Circular Carbon Economy at an event with the BBVA Foundation. The Circular Carbon Economy is based on McDonough's ideas from Carbon Is Not The Enemy[1] and aims to serve as the framework for developing and organizing effective systems for carbon management. McDonough used the Circular Carbon Economy to frame discussions at the G20 workshops in March 2020 before the framework's formal acceptance by the G20 Leaders in November 2020.
Critiques of circular economy models
There is some criticism of the idea of the circular economy. As Corvellec (2015) put it, the circular economy privileges continued economic growth with soft "anti-programs", and the circular economy is far from the most radical "anti-program". Corvellec (2019) raised the issue of multi-species and stresses "impossibility for waste producers to dissociate themselves from their waste and emphasizes the contingent, multiple, and transient value of waste".: 217 "Scatolic engagement draws on Reno's analogy of waste as scats and of scats as signs for enabling interspecies communication. This analogy stresses the impossibility for waste producers to dissociate themselves from their waste and emphasizes the contingent, multiple, and transient value of waste".: 217
A key tenet of a scatolic approach to waste is to consider waste as unavoidable and worthy of interest. Whereas total quality sees in waste a sign of failure, a scatolic understanding sees a sign of life. Likewise, whereas the Circular Economy analogy of a circle evokes endless perfection, the analogy of scats evokes disorienting messiness. A scatolic approach features waste as a lively matter open for interpretation, within organizations as well as across organizational species.: 219
Corvellec and Stål (2019) are mildly critical of apparel manufacturing circular economy take-back systems as ways to anticipate and head off more severe waste reduction programs:
Apparel retailers exploit that the circular economy is evocative but still sufficiently vague to create any concrete policies (Lüdeke‐Freund, Gold, & Bocken, 2019) that might hinder their freedom of action (Corvellec & Stål, 2017). Their business-centered qualification of take-back systems amounts to an engagement in "market action ... as leverage to push policymakers to create or repeal particular rules," as Funk and Hirschman (2017:33) put it.: 26
Research by Zink and Geyer (2017: 593) questioned the circular economy's engineering-centric assumptions: "However, proponents of the circular economy have tended to look at the world purely as an engineering system and have overlooked the economic part of the circular economy. Recent research has started to question the core of the circular economy—namely, whether closing material and product loops do, in fact, prevent primary production."There are other critiques of the circular economy (CE). For example, Allwood (2014) discussed the limits of CE 'material circularity', and questioned the desirability of the CE in a reality with growing demand. Do CE secondary production activities (reuse, repair, and remake) actually reduce, or instead displace, primary production (natural resource extraction)? The problem CE overlooks, its untold story, is how displacement is governed mainly by market forces, according to McMillan et al. (2012). It's the tired old narrative, that the invisible hand of market forces will conspire to create full displacement of virgin material of the same kind, said Zink & Geyer (2017). Korhonen, Nuur, Feldmann, and Birkie (2018) argued that "the basic assumptions concerning the values, societal structures, cultures, underlying world-views and the paradigmatic potential of CE remain largely unexplored".It is also often pointed out that there are fundamental limits to the concept, which are based, among other things, on the laws of thermodynamics. According to the second law of thermodynamics, all spontaneous processes are irreversible and associated with an increase in entropy. It follows that in a real implementation of the concept, one would either have to deviate from the perfect reversibility in order to generate an entropy increase by generating waste, which would ultimately amount to still having parts of the economy which follow a linear scheme, or enormous amounts of energy would be required (from which a significant part would be dissipated in order to for the total entropy to increase). In its comment to concept of the circular economy the European Academies' Science Advisory Council (EASAC) came to a similar conclusion:
Recovery and recycling of materials that have been dispersed through pollution, waste and end-of-life product disposal require energy and resources, which increase in a nonlinear manner as the percentage of recycled material rises (owing to the second law of thermodynamics: entropy causing dispersion). Recovery can never be 100% (Faber et al., 1987). The level of recycling that is appropriate may differ between materials.
In addition to this, the circular economy has been criticized for lacking a strong social justice component. Indeed, most circular economy visions, projects and policies do not address key social questions regarding how circular economy technologies and solutions will be controlled and how their benefits and costs will be distributed. To respond to these limitations some academics and social movements prefer to speak of a circular society rather than a circular economy. They thereby advocate for a circular society where knowledge, political power, wealth, and resources are sustainably circulated in fundamentally democratic and redistributive manners, rather than just improving resource efficiency as most circular economy proposals do.Moreover, it has been argued that a post-growth approach should be adopted for the circular economy where material loops are put (directly) at the service of wellbeing, instead of attempting to reconcile the circular economy with GDP growth. For example, efficiency improvements at the level of individual products could be offset by a growth in total or per-capita consumption, which only beyond-circularity measures like choice editing and rationing unsustainable products or emissions may be able to address.
Related concepts
The various approaches to 'circular' business and economic models share several common principles with other conceptual frameworks:
Biomimicry
Janine Benyus, author of Biomimicry: Innovation Inspired by Nature, defined biomimicry as "a new discipline that studies nature's best ideas and then imitates these designs and processes to solve human problems. Studying a leaf to invent a better solar cell is an example. I think of it as 'innovation' inspired by nature".
Blue economy
Initiated by former Ecover CEO and Belgian entrepreneur Gunter Pauli, derived from the study of natural biological production processes the official manifesto states, "using the resources available ... the waste of one product becomes the input to create a new cash flow".
Cradle to cradle
Created by Walter R. Stahel and similar theorists, in which industry adopts the reuse and service-life extension of goods as a strategy of waste prevention, regional job creation, and resource efficiency in order to decouple wealth from resource consumption.
Industrial ecology
Industrial ecology is the study of material and energy flows through industrial systems. Focusing on connections between operators within the "industrial ecosystem", this approach aims at creating closed-loop processes in which waste is seen as input, thus eliminating the notion of undesirable by-product.
Resource recovery
Resource recovery is using wastes as an input material to create valuable products as new outputs. The aim is to reduce the amount of waste generated, therefore, reducing the need for landfill space and also extracting maximum value from waste.
Sound Material-Cycle Society
A similar concept used in Japan.
Systems thinking
The ability to understand how things influence one another within a whole. Elements are considered as 'fitting in' their infrastructure, environment and social context.
See also
== References == |
national environmental engineering research institute | The National Environmental Engineering Research Institute (NEERI) in Nagpur was originally established in 1958 as the Central Public Health Engineering Research Institute (CPHERI). This renaming reflects the shift of concern from sanitation to wider public health matters. It has been described as the "premier and oldest institute in India." It is an institution listed on the Integrated Government Online Directory where all Indian government websites can be searched for. It operates under the aegis of the Council of Scientific and Industrial Research (CSIR), based in New Delhi.
During its early years, the Institute primarily focused on human health issues related to water supply, sewage disposal, communicable diseases, and to some extent, industrial pollution and occupational diseases. The solutions devised to address these problems were initially simple yet challenging, involving chemical and biological approaches.
However, in the 1970s, there was a growing global awareness of environmental contamination on a regional and global scale. Recognising this shift, Indira Gandhi, the Prime Minister of India at the time, renamed the Institute NEERI in 1974.
NEERI operates as a pioneering laboratory in the field of environmental science and engineering and is one of the constituent laboratories of the Council of Scientific and Industrial Research (CSIR). The institute has five zonal laboratories located in Chennai, Delhi, Hyderabad, Kolkata, and Mumbai. NEERI operates under the Ministry of Science and Technology of the Indian government. Furthermore, NEERI plays a significant role as a partner organisation in India's POPs National Implementation Plan (NIP), contributing to the country's efforts to address persistent organic pollutants.
Mandate
NEERI's mandate includes the following objectives:
Conducting research and developmental studies in the field of environmental science and engineering.
Providing assistance to industries in the region, as well as local bodies, in addressing environmental pollution issues
Collaborating and interacting with academic and research institutions in the field of environmental science and engineering for mutual benefits
Participating in CSIR's thrust area and mission projects related to the environmentThese objectives guide NEERI's activities and initiatives, emphasising research, problem-solving, collaboration, and contribution to larger environmental initiatives.
The beginning
In 1958, the Central Public Health Engineering Research Institute (CPHERI) was established in response to water pollution issues in Delhi. It was created by the Council of Scientific and Industrial Research (CSIR) to address problems related to water and air pollution in urban areas, assist industries, anticipate and provide solutions, and focus on regional development. The institute initially concentrated on human health concerns, including water supply, sewage disposal, and communicable diseases.
In 1974, after participating in the "United Nations Inter-Governmental Conference on Human Environment" and with the renaming by Prime Minister Indira Gandhi, CPHERI became the National Environmental Engineering Research Institute (NEERI) to expand its research and development scope in environmental science and engineering. NEERI has headquarters in Nagpur and five zonal laboratories in Mumbai, Kolkata, Delhi, Chennai, and Hyderabad.NEERI carries out various activities, including environmental monitoring, biotechnology, waste management, environmental impact assessment, and policy analysis. NEERI has also been involved in collaborations and provided expertise in environmental management, including contributions to environmental statutes and regulations. The institute continues to address a wide range of environmental issues, employing technologies such as environmental biotechnology and genomics for sustainable development. NEERI's research and services cover aspects of pollution, remediation, waste management, and environmental monitoring. Additionally, it has played a role in providing solutions to pollution problems and offering support during environmental crises, demonstrating its commitment to societal well-being.
Guideline applications
Study for the location of new municipal solid waste landfill site for Kolkata using the institute's 2005 Guidelines.
R&D focus areas
Environmental monitoring
One of the key areas of research and development at CSIR-NEERI is environmental monitoring. Since 1978, the institute has operated a nationwide air quality monitoring network. Sponsored by the Central Pollution Control Board (CPCB) since 1990, this programme has gathered time series data on air quality in ten major Indian cities, including Ahmedabad, Kolkata, Chennai, Delhi, Hyderabad, Jaipur, Kanpur, Kochi, Mumbai, and Nagpur. CSIR-NEERI has compiled an extensive database on pollutants such as inhalable dust, sulphur dioxide, nitrogen dioxide, hydrogen sulphide, ammonia, lead, and polycyclic aromatic hydrocarbons. The institute conducts air pollution monitoring in various aspects, including urban ambient air quality, industrial air quality, fugitive emissions, vehicle emissions, and stack monitoring. They also engage in air quality modelling to study source dispersion, industrial and vehicular emissions, area source emissions, and the prediction of ambient air quality under different scenarios. Receptor modelling techniques are used to analyse particulate matter and identify its sources, while statistical and neural network tools are employed for air quality trend analysis.
CSIR-NEERI is involved in the design and development of air pollution control systems, focusing on emissions generation, treatment studies, and designing systems for small to medium-scale industries.
The institute's research and development activities in environmental monitoring include the development of efficient analytical techniques and low-cost instruments, designing national monitoring networks, creating national databases, and providing manpower training. Current emphasis is placed on the use of PCR and gene probes for water quality monitoring, biological indicators for pollution monitoring, and the application of remote sensing and GIS. Notably, CSIR-NEERI has developed a portable field kit for arsenic estimation capable of measuring concentrations below the maximum permissible limit of 10 ppb.
Environmental biotechnology and genomics
The institute is engaged in research and development studies concerning environmental biotechnology and the application of biotechnology-based solutions for environmental problems and sustainable development. This involves multidisciplinary R&D in fundamental and applied areas of environmental biotechnology, drawing from various disciplines such as microbiology, biochemistry, chemistry, molecular biology, and chemical and environmental engineering. The objective is to develop environmentally friendly biotechnological processes that address societal and industrial needs, focusing on environmental quality restoration, bioremediation and waste treatment, waste-to-wealth approaches, and climate change mitigation.
R&D activities in environmental biotechnology include the development and demonstration of technologies that substitute non-renewable resources with renewable ones, recycling and reusing industrial and domestic wastewater, and utilising industrial wastes and biomass for the commercial production of chemicals. Notably, the institute has made advancements in the development of a microbial consortium capable of degrading persistent synthetic chlorinated cyclodiene and endosulfan.The Institute also conducts R&D studies on the existence, interaction, and survival of different gene pools within complex ecosystems. Through the use of monitoring tools, computer modelling, and simulation techniques, the Institute gains a holistic understanding of the interconnected aspects of environmental systems. At the molecular level, the Institute investigates the structure, function, and interaction of gene pools that contribute to the biogeochemical cycles of various ecosystem components. This research encompasses the study of environmental factors that can impact any form of life, including humans, plants, animals, and microorganisms.
Environmental impact and risk assessment
To date, the institute has conducted environmental impact and risk assessment studies for over 500 developmental projects across various industries, including petrochemicals, oil and natural gas, refineries, mining, power plants (thermal, hydro, and nuclear), chemicals and fertilisers, ports and harbours, irrigation, and infrastructure, among others. The institute's Environmental Impact Assessment (EIA) studies focus on analysing concepts, approaches, methodologies, and evaluation processes. It also utilises new technology development tools to enhance and strengthen procedures and evaluation processes for impact assessment. The studies provide recommendations and formulate suitable environmental management plans to support sustainable development.
Environmental systems design & modelling
The institute is engaged in the development and utilisation of numerical models to predict environmental quality. It also focuses on the development and application of geographical information system (GIS) and remote sensing (RS)-based models and analytical tools for effective management of natural resources. Furthermore, the institute is involved in the development and application of environmental systems design, detailed engineering, costing, and drawings for the design of water supply and sewerage systems. Similarly, it is also dedicated to the development and application of environmental systems design, detailed engineering, costing, and drawings for water and wastewater treatment systems. Additionally, the Institute applies advanced numerical and graphic tools such as SPSS, MATLAB, and ANN for the analysis and management of environmental systems.
Water technology and management
The institute is actively engaged in several research and development activities, including:
Conducting environmental impact assessments and formulating environmental management plans for water resource development projects.
Implementing measures for water conservation and environmental protection of water bodies
Undertaking eco-restoration efforts for impounded surface water bodies and downstream systems.
Conducting limnological studies to understand the characteristics of surface water bodies.
Assessing groundwater contamination resulting from human activities
Developing techniques and methodologies for groundwater exploration, assessment, and management in areas with hard rock formations
Using geophysical and non-invasive methods to delineate contaminated regions and characterise water and land environments
Monitoring the quality of drinking water and evaluating the performance of water treatment facilities
Developing technologies to improve water quality and implementing analytical techniques for water quality assessment
Monitoring and managing priority organic pollutants (POPs) and other pollutants
Evaluating water resources based on health-related water quality parameters
Managing water quality issues related to pesticide contamination
Restoring and remediating degraded land
Treating urban and industrial wastewater.
Developing catchment area treatment plans
Assessing the feasibility of using bio-engineering techniques for steep slope stabilisation
Undertaking green belt development and land use planning.
Assessing crop loss caused by human activities
Protecting natural water sources.
Assessing salinity ingress in coastal areasFurthermore, CSIR-NEERI has contributed to the implementation of solar electrolytic defluoridation plants in fluoride-affected regions, ensuring safe drinking water for local communities. The institute has also developed a water purification system called 'NEERI ZAR,' designed for emergency situations such as floods, heavy rainfall, or cyclones. It operates without the need for electricity, providing a potable water supply.
In the 1960s and 70s the Institute developed Guidelines for simple deflouridation techniques, which have been extensively applied. They have sometimes formed a departure point for the development of other techniques.
Solid & hazardous waste management
The institute is actively engaged in various research and development activities related to solid and hazardous waste management, including:
Developing rapid composting technologies
Conducting research on waste-to-energy conversion.
Exploring recycled organics utilisation
Monitoring greenhouse gas emissions from landfills
Quantifying and characterising solid waste
Designing secure landfills.
Conducting eco-toxicological studies on landfill leachates.
Assessing occupational health risks for municipal solid waste (MSW) workers
Designing transportation systems for MSW
Managing electronic waste (e-waste)
Promoting cleaner technologies and waste minimization.
encouraging the recycling and reuse of MSW.
Managing biomedical waste
Identifying hazardous waste streams
Quantifying and characterising hazardous waste.
Developing treatment systems for hazardous waste
Promoting source reduction and recycling.In an effort to generate bio-energy from municipal solid waste, scientists at the Institute are working on a cost-effective two-phase bio-methanation process. They aim to utilise this process to produce bioenergy from municipal solid waste.CSIR-NEERI has provided Hindustan Unilever Ltd. (HUL) with a suitable technology for the remediation of their mercury-contaminated site in Kodaikanal. Additionally, the institute has offered an effective technological solution for the environmentally sound management of hazardous wastes generated by Nicomet Industries Ltd.
Wastewater treatment technologies
CSIR-NEERI has played a significant role in the design and establishment of Common Effluent Treatment Plants (CETPs) for both homogeneous and heterogeneous industrial clusters across the country. The implementation of CETPs, designed and commissioned by CSIR-NEERI, has effectively contributed to the prevention of water and soil pollution. In particular, CETPs have had a positive impact on various industrial clusters, such as Pali (767 small-scale industrial units), Balotra (249 units), and the National Capital Territory (NCT) of Delhi (over 2000 units). The intervention of CETPs has not only revived these industrial units but also protected the employment of thousands of workers. These units were facing imminent closure due to non-compliance with pollution prevention norms. Furthermore, the adoption of CETPs has led to the attainment of "economics of scale" in waste treatment, resulting in reduced costs for pollution abatement.
CSIR-NEERI has conducted feasibility assessment studies for CETPs, encompassing the identification of waste types and volumes generated, estimation of future waste loads, identification of treatment options, and evaluation of cleaner technologies. The institute has also provided treatment solutions for achieving zero liquid discharge in textile industries located in Tirupur and Ludhiana. Recently, CSIR-NEERI has developed a two-stage bio-oxidation (TSB) process, based on separated heterotrophic-autotrophic reactions, for treating high chemical oxygen demand (COD) and ammonia-laden wastewater. This innovative process eliminates the need for chemical treatment and denitrification steps. The large-scale implementation of the TSB process has been successfully carried out at Nagarjuna Agrochemical Limited in Srikakulam, Andhra Pradesh.
CSIR-NEERI has designed a treatment and zero-discharge system for the treated effluent of the automobile industry using the High Rate Transpiration System (HRTS). This technology has been implemented at Mahindra Vehicle Manufacture Limited in Pune.
The institute has developed a phytoremediation-based sewage treatment technology known as "phytorid sewage treatment technology.' This approach involves the use of constructed wetlands exclusively designed for the treatment of municipal, urban, agricultural, and industrial wastewater. Several industries and urban local bodies in the country have successfully adopted this technology.
Environmental policy analysis
CSIR-NEERI has actively contributed to the formulation of environmental policies through comprehensive analyses of existing policies in relation to international commitments and prevailing socio-economic conditions. The institute has provided valuable recommendations to establish effective mechanisms for policy development, planning, legal frameworks, and informational measures, all aimed at promoting sustainable development; and conservation. Furthermore, CSIR-NEERI has played a significant role in the development of information packages focused on cleaner technologies for industrial production. In certain instances, the institute has been entrusted by the courts to provide inspection reports on diverse projects and assess the current environmental and legal framework. The impact of climate change on Mumbai is the subject of an assessment by the institute.
Sample testing
The Institute may test samples gathered for the purposes of scientific research within the areas of its remit. This includes: deflouridation and the measurement of particulate matter in air. Encouraging and assisting with field studies applying Institute tests is part of this remit. Its own premises may on occasion be permitted to be used for appropriate research.
Skill development
The institute has set up a Centre for Skill Development offering certificate courses in the areas of environmental impact assessment, carrying capacity analysis, and water quality monitoring and assessment. Prof. V. Rajagopalan (1993 Vice President of the World Bank) had in his time (1955–65) with the Institute created a national programme to provide skills development for water industry professionals including engineers. Graduate programmes were established in Public Health Engineering at the Guindy Engineering College, Madras, Roorkee Engineering University and VJTI in Mumbai.
Assessment of research
As regards the period 1989-2013 the research performance over 1236 publications of the National Environmental Engineering Research Institute has been critically assessed and surveyed.Where the Institute developed a technique for enrichment of ilmenite with titanium dioxide, the process has been evaluated externally.
Crisis response
During the COVID-19 crisis, the Institute developed (pre-assessment) a user-friendly and accessible saline gargling sample method to trace the spread and character of the disease.
Patent development
The institute has national and international patents for a method to manufacture zeolite-A using flyash instead of sodium silicate and aluminate.
Publications (selected)
Kumar, A., et al. "Sustainability in Environmental Engineering and Science." (2021): 253–262.
Kameni Ngounou, M. Bernard, et al. "Corrigendum to “Coagulation and Sedimentation of Concentrated Laterite Suspensions: Comparison of Hydrolyzing Salts in Presence of Grewia spp. Biopolymer”." Journal of Chemistry 2021 (2021): 1-1.
Dhodapkar, Rita S., and Kavita N. Gandhi. "1CSIR-National Environmental Engineering Research Institute, Nagpur, India, 2Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, India." Pharmaceuticals and Personal Care Products: Waste Management and Treatment Technology (2019): 63.
Arfin, Tanvir. "Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, India." Advanced Functional Textiles and Polymers: Fabrication, Processing and Applications (2019): 291.
Singh Kachhawaha, A., and A. B. A. Boxall. "A small scale monitoring study for a range of pharmaceuticals in the River Foss catchment and comparison to concentrations in the River Nag, India: report of researcher exchange March 2018." (2019).
Kumar, Sunil, et al. "Challenges and opportunities associated with waste management in India." Royal Society open science 4.3 (2017): 160764.
Thakur, N. S. "Scientometric analysis of research productivity: A case study of National Environmental Engineering Research Institute, Nagpur." International Journal of Library Information Network and Knowledge 3.1 (2018): 43–53.
Chandra, Ram, ed. Environmental waste management. CRC Press, 2016.
Lohiya, Rajesh Kumar, K. P. S. Sengar, and Jiji Cyriac. "Research Performance of CSIR-NEERI, Nagpur during 1989-2013: A Scientometric Study." Journal of Information and Knowledge (2016): 297–305.
Kumar, Sunil. "Sunil Kumar." Int. J. Environmental Technology and Management 17.2/3 (2014): 4.
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Kanherkar, S. V., et al. "Study of the Efficiency of Immobilized Algal Technology for Wastewater Treatment." Journal of Environmental Science & Engineering 54.1 (2012): 121–127.
Saini, Samir, Prakash Rao, and Yogesh Patil. "City based analysis of MSW to energy generation in India, calculation of state-wise potential and tariff comparison with EU." Procedia-Social and Behavioral Sciences 37 (2012): 407–416.
Sharma, Abhinav. "Effect of ozone pretreatment on biodegradability enhancement and biogas production of biomethanated distillery effluent."Sharma, Asheesh, et al. "NutriL-GIS: A Tool for Assessment of Agricultural Runoff and Nutrient Pollution in a Watershed." National Environmental Engineering Research Institute (NEERI). India (2010).
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== References == |
environmental factor | An environmental factor, ecological factor or eco factor is any factor, abiotic or biotic, that influences living organisms. Abiotic factors include ambient temperature, amount of sunlight, and pH of the water soil in which an organism lives. Biotic factors would include the availability of food organisms and the presence of biological specificity, competitors, predators, and parasites.
Overview
An organism's genotype (e.g., in the zygote) translated into the adult phenotype through development during an organism's ontogeny, and subject to influences by many environmental effects. In this context, a phenotype (or phenotypic trait) can be viewed as any definable and measurable characteristic of an organism, such as its body mass or skin color.Apart from the true monogenic genetic disorders, environmental factors may determine the development of disease in those genetically predisposed to a particular condition. Stress, physical and mental abuse, diet, exposure to toxins, pathogens, radiation and chemicals found in almost all personal-care products and household cleaners are common environmental factors that determine a large segment of non-hereditary disease.If a disease process is concluded to be the result of a combination of genetic and environmental factor influences, its etiological origin can be referred to as having a multifactorial pattern.Cancer is often related to environmental factors. Maintaining a healthy weight, eating a healthy diet, minimizing alcohol and eliminating smoking reduces the risk of developing the disease, according to researchers.Environmental triggers for asthma and autism have been studied too.
Exposome
The exposome encompasses the set of human environmental (i.e. non-genetic) exposures from conception onwards, complementing the genome. The exposome was first proposed in 2005 by cancer epidemiologist Christopher Paul Wild in an article entitled "Complementing the genome with an "exposome": the outstanding challenge of environmental exposure measurement in molecular epidemiology". The concept of the exposome and how to assess it has led to lively discussions with varied views in 2010, 2012, 2014 and 2021.In his 2005 article, Wild stated, "At its most complete, the exposome encompasses life-course environmental exposures (including lifestyle factors), from the prenatal period onwards." The concept was first proposed to draw attention to the need for better and more complete environmental exposure data for causal research, in order to balance the investment in genetics. According to Wild, even incomplete versions of the exposome could be useful to epidemiology. In 2012, Wild outlined methods, including personal sensors, biomarkers, and 'omics' technologies, to better define the exposome. He described three overlapping domains within the exposome:
a general external environment including the urban environment, education, climate factors, social capital, stress,
a specific external environment with specific contaminants, radiation, infections, lifestyle factors (e.g. tobacco, alcohol), diet, physical activity, etc.
an internal environment to include internal biological factors such as metabolic factors, hormones, gut microflora, inflammation, oxidative stress.In late 2013, this definition was explained in greater depth in the first book on the exposome.
In 2014, the same author revised the definition to include the body's response with its endogenous metabolic processes which alter the processing of chemicals. More recently, evidenced by metabolic exposures in and around the time of pregnancy, the maternal metabolic exposome includes exposures such as maternal obesity/overweight and diabetes, and malnutrition, including high fat/high calorie diets, which are associated with poor fetal, infant and child growth, and increased incidence of obesity and other metabolic disorders in later life.
Main article: Exposome
Measurement
For complex disorders, specific genetic causes appear to account for only 10-30% of the disease incidence, but there has been no standard or systematic way to measure the influence of environmental exposures. Some studies into the interaction of genetic and environmental factors in the incidence of diabetes have demonstrated that "environment-wide association studies" (EWAS, or exposome-wide association studies) may be feasible. However, it is not clear what data sets are most appropriate to represent the value of "E".
Research initiatives
As of 2016, it may not be possible to measure or model the full exposome, but several European projects have started to make first attempts.
In 2012, the European Commission awarded two large grants to pursue exposome-related research. The HELIX project at the Barcelona-based Centre for Research in Environmental Epidemiology was launched around 2014, and aimed to develop an early-life exposome. A second project, Exposomics, based at Imperial College London, launched in 2012, aimed to use smartphones utilising GPS and environmental sensors to assess exposures.In late 2013, a major initiative called the "Health and Environment-Wide Associations based on Large Scale population Surveys" or HEALS, began. Touted as the largest environmental health-related study in Europe, HEALS proposes to adopt a paradigm defined by interactions between DNA sequence, epigenetic DNA modifications, gene expression, and environmental factors.In December 2011, the US National Academy of Sciences hosted a meeting entitled "Emerging Technologies for Measuring Individual Exposomes." A Centers for Disease Control and Prevention overview, "Exposome and Exposomics", outlines the three priority areas for researching the occupational exposome as identified by the National Institute for Occupational Safety and Health. The National Institutes of Health (NIH) has invested in technologies supporting exposome-related research including biosensors, and supports research on gene–environment interactions.
Proposed Human Exposome Project (HEP)
The idea of a Human Exposome Project, analogous to the Human Genome Project, has been proposed and discussed in numerous scientific meetings, but as of 2017, no such project exists. Given the lack of clarity on how science would go about pursuing such a project, support has been lacking. Reports on the issue include:
a 2011 review on the exposome and exposure science by Paul Lioy and Stephen Rappaport, "Exposure science and the exposome: an opportunity for coherence in the environmental health sciences" in the journal Environmental Health Perspectives.
a 2012 report from the United States National Research Council "Exposure Science in the 21st Century: A Vision and A Strategy", outlining the challenges in systematic evaluations of the exposome.
Related fields
The concept of the exposome has contributed to the 2010 proposal of a new paradigm in disease phenotype, "the unique disease principle": Every individual has a unique disease process different from any other individual, considering uniqueness of the exposome and its unique influence on molecular pathologic processes including alterations in the interactome. This principle was first described in neoplastic diseases as "the unique tumor principle". Based on this unique disease principle, the interdisciplinary field of molecular pathological epidemiology (MPE) integrates molecular pathology and epidemiology.
Socioeconomic drivers
Global change is driven by many factors; however the five main drivers of global change are: population growth, economic growth, technological advances, attitudes, and institutions. These five main drivers of global change can stem from socioeconomic factors which in turn, these can be seen as drivers in their own regard. Socioeconomic drivers of climate change can be triggered by a social or economic demand for resources such as a demand for timber or a demand for agricultural crops. In tropical deforestation for instance, the main driver is economic opportunities that come the extraction of these resources and the conversion of this land to crop or rangelands. These drivers can be manifested at any level, from the global level demand for timber all the way to the household level.An example of how socioeconomic drivers affect climate change can be seen in the soy bean trading between Brazil and China. The trading of soy beans from to Brazil and China has grown immensely in the past few decades. This growth in trade between these two countries is stimulated by socioeconomic drivers. Some of the socioeconomic drivers in play here are the rising demand for Brazilian soy beans in China, the increase in land use change for soy bean production in Brazil, and the importance of strengthening foreign trade between the two countries. All of these socioeconomic drivers have implications in climate change. For instance, an increase in the development for soy bean croplands in Brazil means there needs to be more and more land made available for this resource. This causes the general land cover of forest to be converted into croplands which in its own regard has an impact on the environment. This example of land use change driven by a demand of a resource, isn’t only happening in Brazil with soy bean production.
Another example came from The Renewable Energy Directive 2009 Union when they mandated biofuel development for countries within their membership. With an international socioeconomic driver of increasing the production biofuels comes affects in land use in these countries. When agricultural cropland shift to bioenergy cropland the original crop supply decreases while the global market for this crop increases. This causes a cascading socioeconomic driver for the need for more agricultural croplands to support the growing demand. However, with the lack of available land from the crop substitution to biofuels, countries must look into areas further away to develop these original croplands. This causes spillover systems in countries where this new development takes place. For instance, African countries are converting savanna's into cropland and this all stems from the socioeconomic driver of wanting to develop biofuels. Furthermore, socioeconomic driver that cause land use change don’t all occur at an international level. These drivers can be experienced all the way down to the household level. Crop substitution doesn't only come from biofuel shifts in agriculture, a big substitution came from Thailand when they switched the production of opium poppy plants to non-narcotic crops. This caused Thailand's agricultural sector to grow, but it caused global rippling effects (opium replacement).For instance, in Wolong China, locals use forests as fuelwood to cook and heat their homes. So, the socioeconomic driver in play here is the local demand for timber to support subsistence in this area. With this driver, locals are depleting their supply for fuelwood so they have to keep moving further away to extract this resource. This movement and demand for timber is in turn contributing to the loss of pandas in this area because their ecosystem is getting destroyed.However, when researching local trends the focus tends to be on outcomes instead of on how changes in the global drivers affect outcomes. With this being said, community level planning needs to be implemented when analyzing socioeconomic drivers of change.In conclusion, one can see how socioeconomic drivers at any level play a role in the consequences of human actions on the environment. These drivers all have cascading effects on land, humans, resources, and the environment as a whole. With this being said, humans need to fully understand how their socioeconomic drivers can change the way we live. For instance, going back to the soy bean example, when the supply can’t meet the demand for soy beans the global market for this crop increases which then in turn affects countries that rely on this crop for a food source. These affects can cause a higher price for soy beans at their stores and markets or it can cause an overall lack of availability for this crop in importing countries. With both of these outcomes, the household level is being affected by a national level socioeconomic driver of an increased demand for Brazilian soy beans in China. From just this one example alone, one can see how socioeconomic drivers influence changes at a national level that then lead to more global, regional, communal, and household level changes. The main concept to take away from this is the idea that everything is connected and that our roles and choices as humans have major driving forces that impact our world in numerous ways.
See also
== References == |
list of environmental organisations topics | This is a list of topics on which environmental organizations focus.
Agriculture
Agricultural pollution
Agroforestry
Animal husbandry
Aquaculture
Biodynamic farming
Biotechnology
Composting
Genetically modified foods
Herbicides
Organic farming
PermacultureHarmful substances in farming
Air quality
Acid rain
Air pollution
Asthma
Criteria pollutants
Fossil fuels
Photochemical smog
Indoor Air Quality
Industrial pollution
Ozone depletion
Transport and the environment
Climate change
Global warming
Greenhouse effect
Urban heat island effect
Ecosystems
Coastal ecosystems
Coral reefs
Deserts
Forests
Grasslands
Mountains
Oceans
Rainforests
Rivers, Lakes and Streams
Wetlands
Energy
Alternative fuels
Biomass
Energy conservation
Efficient energy use
Fossil fuel
Fuel cells
Geothermal energy
Hydroelectric energy
Nuclear power
Solar energy
Wind energy
Environmental disasters
Chemical spills
Floods
Hurricanes
Landslides
Monsoons
Nuclear and radiation accidents
Oil spills
Tornadoes
Wildfires
Environmental economics
Economic development
Free trade
Globalization
Environmental education
Environmental studies
Outdoor Education
Environmental ethics
Deep ecology
Ecofeminism
Religion and environmentalism
Social Ecology
Environmental legislation and environmental policy
Environmental justice
Environmental politics
Environmental regulation
Forests
Agroforestry
Deforestation
Forest management
Old growth
Rainforests
Reforestation
Sustainable forestry
Ground pollution
Brownfields
Industrial pollution
Landfills
Pollution prevention
Resource extraction
Soil quality
Habitat conservation
Marine conservation
National parks
Pollution
Public lands
Resource extraction
Wilderness areas
Human health
Asbestos
Asthma
Cancer
Chlorine
Dioxin
Drinking water
Fluoride
Food quality
Genetically modified foods
Lead
Light pollution
Mercury poisoning
Multiple chemical sensitivity
Noise pollution
Occupational safety and health
Organochlorines
Poverty
Radiation
Radon
Toxins
Natural history
Environmental history
Prehistory
Oceans
Aquaculture
Beaches
Coastal ecosystems
Coral Reefs
Fisheries
Marine biology
Oceanography
Outdoor recreation
Biking
Bird watching
Hiking/Backpacking
Snowsports/Ice sports
Water sports
Population
Overconsumption
Overpopulation
Sciences
Atmospheric sciences
Biology
Biotechnology
Botany
Chemistry
Ecology
Geography
Geology
Meteorology
Oceanography
Ornithology
Paleontology
Social sciences and humanities
Archaeology
Ethnic diversity
Indigenous cultures
World cultures
Sustainable business
Alternative fuels
Corporate accountability
Economic development
Ecotourism
Energy conservation
Green building
Social investing
Sustainable technology
Waste reduction
Water conservation
Sustainable development
Economic development
Sustainable agriculture
Sustainable forestry
Sustainable technology
Sustainable living
Consumerism
Green building
Home maintenance
Organic gardening
Social investing
Sustainable transport
Transportation
Alternative fuel vehicles
Bicycles
Mass transit
Remote work
Urban issues
Light pollution
Noise pollution
Sprawl
Traffic
Urban heat island effect
Urban planning
Vegetarianism
Fruitarianism
Veganism
Vegetarianism
Lacto vegetarianism
Waste management
Bioremediation
Composting
Environmental remediation
Hazardous and toxic waste
Landfills
Nuclear Waste
Recycling
Water quality
Beaches
Drinking water
Fishing
Industrial pollution
Water conservation
Water pollution
Water treatment
Watersheds
Wildlife
Biodiversity
Conservation biology
Endangered species
Fauna
Flora
Invasive species
Native plants
Wildflowers
Wildlife conservation
Wildlife sanctuaries
See also
List of conservation issues
List of environmental issues
List of environmental organizations |
climate change | In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices add to greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming.
Climate change is causing a range of increasing impacts on the environment. Deserts are expanding, while heat waves and wildfires are becoming more common. Amplified warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing more intense storms, droughts, and other weather extremes. Rapid environmental change in mountains, coral reefs, and the Arctic is forcing many species to relocate or become extinct. Even if efforts to minimise future warming are successful, some effects will continue for centuries. These include ocean heating, ocean acidification and sea level rise.Climate change threatens people with increased flooding, extreme heat, increased food and water scarcity, more disease, and economic loss. Human migration and conflict can also be a result. The World Health Organization (WHO) calls climate change the greatest threat to global health in the 21st century. Societies and ecosystems will experience more severe risks without action to limit warming. Adapting to climate change through efforts like flood control measures or drought-resistant crops partially reduces climate change risks, although some limits to adaptation have already been reached. Poorer communities are responsible for a small share of global emissions, yet have the least ability to adapt and are most vulnerable to climate change.
Many climate change impacts are already felt at the current 1.2 °C (2.2 °F) level of warming. Additional warming will increase these impacts and can trigger tipping points, such as the melting of the Greenland ice sheet. Under the 2015 Paris Agreement, nations collectively agreed to keep warming "well under 2 °C". However, with pledges made under the Agreement, global warming would still reach about 2.7 °C (4.9 °F) by the end of the century. Limiting warming to 1.5 °C will require halving emissions by 2030 and achieving net-zero emissions by 2050.Reducing emissions requires reducing energy use and generating electricity from low-carbon sources rather than burning fossil fuels. This change includes phasing out coal and natural gas fired power plants while vastly increasing electricity generated from wind, solar, and nuclear power. This electricity will need to replace fossil fuels for powering transportation, heating buildings, and operating industrial facilities. Carbon can also be removed from the atmosphere, for instance by increasing forest cover and farming with methods that capture carbon in soil.
Terminology
Before the 1980s, when it was unclear whether the warming effect of increased greenhouse gases was stronger than the cooling effect of airborne particulates in air pollution, scientists used the term inadvertent climate modification to refer to human impacts on the climate.In the 1980s, the terms global warming and climate change became more common. Though the two terms are sometimes used interchangeably, scientifically, global warming refers only to increased surface warming, while climate change describes the totality of changes to Earth's climate system. Global warming—used as early as 1975—became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. Since the 2000s, climate change has increased in usage. Climate change can also refer more broadly to both human-caused changes or natural changes throughout Earth's history.Various scientists, politicians and media now use the terms climate crisis or climate emergency to talk about climate change, and global heating instead of global warming.
Observed temperature rise
Multiple independent instrumental datasets show that the climate system is warming. A so-called "global warming hiatus" from 1998 to 2013 when warming was relatively slow was likely caused by negative phases of the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO). The 2013-2022 decade warmed to an average 1.15 °C [1.00–1.25 °C] compared to the pre-industrial baseline (1850–1900). Surface temperatures are rising by about 0.2 °C per decade, with 2020 reaching a temperature of 1.2 °C above the pre-industrial era. Since 1950, the number of cold days and nights has decreased, and the number of warm days and nights has increased.Evidence of warming from air temperature measurements is reinforced by a wide range of other observations. For example, changes to the natural water cycle have been predicted and observed, such as an increase in the frequency and intensity of heavy precipitation, melting of snow and land ice, and increased atmospheric humidity. Flora and fauna are also behaving in a manner consistent with warming; for instance, plants are flowering earlier in spring. Another key indicator is the cooling of the upper atmosphere, which demonstrates that greenhouse gases are trapping heat near the Earth's surface and preventing it from radiating into space.Different regions of the world warm at different rates. The pattern is independent of where greenhouse gases are emitted, because the gases persist long enough to diffuse across the planet. Since the pre-industrial period, the average surface temperature over land regions has increased almost twice as fast as the global-average surface temperature. This is because of the larger heat capacity of oceans, and because oceans lose more heat by evaporation. The thermal energy in the global climate system has grown with only brief pauses since at least 1970, and over 90% of this extra energy has been stored in the ocean. The rest has heated the atmosphere, melted ice, and warmed the continents.The Northern Hemisphere and the North Pole have warmed much faster than the South Pole and Southern Hemisphere. The Northern Hemisphere not only has much more land, but also more seasonal snow cover and sea ice. As these surfaces flip from reflecting a lot of light to being dark after the ice has melted, they start absorbing more heat. Local black carbon deposits on snow and ice also contribute to Arctic warming. Arctic temperatures are increasing at over twice the rate of the rest of the world. Melting of glaciers and ice sheets in the Arctic disrupts ocean circulation, including a weakened Gulf Stream, further changing the climate.
Temperature records prior to global warming
Human beings evolved over the last few million years in a climate that cycled through ice ages, with global average temperature ranging between current levels and 5–6 °C colder than today. The temperature record prior to human evolution includes hotter temperatures and occasional abrupt changes, such as the Paleocene–Eocene Thermal Maximum 55.5 million years ago.Historical patterns of warming and cooling, like the Medieval Warm Period and the Little Ice Age, did not occur at the same time across different regions. Temperatures may have reached as high as those of the late 20th century in a limited set of regions.There was little net warming between the 18th century and the mid-19th century. Climate information for that period comes from climate proxies, such as trees and ice cores. Thermometer records began to provide global coverage around 1850.
Attribution of recent temperature rise
The climate system experiences various cycles on its own which can last for years, decades or even centuries. For example, El Niño events cause short-term spikes in surface temperature while La Niña events cause short term cooling. Their relative frequency can affect global temperature trends on a decadal timescale. Other changes are caused by an imbalance of energy from specific external forcings. Examples of these include changes in the concentrations of greenhouse gases, solar luminosity, volcanic eruptions, and variations in the Earth's orbit around the Sun.To determine the human contribution to climate change, unique "fingerprints" for all potential causes are developed and compared with both observed patterns and known internal climate variability. For example, solar forcing—whose fingerprint involves warming the entire atmosphere—is ruled out because only the lower atmosphere has warmed. These techniques show that greenhouse gases are the main cause of current global warming. Atmospheric aerosols produce a smaller, cooling effect. Other drivers, such as changes in albedo, are less impactful.
Greenhouse gases
Greenhouse gases are transparent to sunlight, and thus allow it to pass through the atmosphere to heat the Earth's surface. The Earth radiates it as heat, and greenhouse gases absorb a portion of it. This absorption slows the rate at which heat escapes into space, trapping heat near the Earth's surface and warming it over time. Before the Industrial Revolution, naturally-occurring amounts of greenhouse gases caused the air near the surface to be about 33 °C warmer than it would have been in their absence. While water vapour (≈50%) and clouds (≈25%) are the biggest contributors to the greenhouse effect, they increase as a function of temperature and are therefore feedbacks. On the other hand, concentrations of gases such as CO2 (≈20%), tropospheric ozone, CFCs and nitrous oxide are not temperature-dependent, and are therefore external forcings.Human activity since the Industrial Revolution, mainly extracting and burning fossil fuels (coal, oil, and natural gas), has increased the amount of greenhouse gases in the atmosphere, resulting in a radiative imbalance. In 2019, the concentrations of CO2 and methane had increased by about 48% and 160%, respectively, since 1750. These CO2 levels are higher than they have been at any time during the last 2 million years. Concentrations of methane are far higher than they were over the last 800,000 years.
Global anthropogenic greenhouse gas emissions in 2019 were equivalent to 59 billion tonnes of CO2. Of these emissions, 75% was CO2, 18% was methane, 4% was nitrous oxide, and 2% was fluorinated gases. CO2 emissions primarily come from burning fossil fuels to provide energy for transport, manufacturing, heating, and electricity. Additional CO2 emissions come from deforestation and industrial processes, which include the CO2 released by the chemical reactions for making cement, steel, aluminum, and fertiliser. Methane emissions come from livestock, manure, rice cultivation, landfills, wastewater, and coal mining, as well as oil and gas extraction. Nitrous oxide emissions largely come from the microbial decomposition of fertiliser.Despite the contribution of deforestation to greenhouse gas emissions, the Earth's land surface, particularly its forests, remain a significant carbon sink for CO2. Land-surface sink processes, such as carbon fixation in the soil and photosynthesis, remove about 29% of annual global CO2 emissions. The ocean also serves as a significant carbon sink via a two-step process. First, CO2 dissolves in the surface water. Afterwards, the ocean's overturning circulation distributes it deep into the ocean's interior, where it accumulates over time as part of the carbon cycle. Over the last two decades, the world's oceans have absorbed 20 to 30% of emitted CO2.
Aerosols and clouds
Air pollution, in the form of aerosols, affects the climate on a large scale. Aerosols scatter and absorb solar radiation. From 1961 to 1990, a gradual reduction in the amount of sunlight reaching the Earth's surface was observed. This phenomenon is popularly known as global dimming, and is attributed to aerosols produced by dust, pollution and combustion of biofuels and fossil fuels. Globally, aerosols have been declining since 1990 due to pollution controls, meaning that they no longer mask greenhouse gas warming as much.Aerosols also have indirect effects on the Earth's radiation budget. Sulfate aerosols act as cloud condensation nuclei and lead to clouds that have more and smaller cloud droplets. These clouds reflect solar radiation more efficiently than clouds with fewer and larger droplets. They also reduce the growth of raindrops, which makes clouds more reflective to incoming sunlight. Indirect effects of aerosols are the largest uncertainty in radiative forcing.While aerosols typically limit global warming by reflecting sunlight, black carbon in soot that falls on snow or ice can contribute to global warming. Not only does this increase the absorption of sunlight, it also increases melting and sea-level rise. Limiting new black carbon deposits in the Arctic could reduce global warming by 0.2 °C by 2050.
Land surface changes
Humans change the Earth's surface mainly to create more agricultural land. Today, agriculture takes up 34% of Earth's land area, while 26% is forests, and 30% is uninhabitable (glaciers, deserts, etc.). The amount of forested land continues to decrease, which is the main land use change that causes global warming. Deforestation releases CO2 contained in trees when they are destroyed, plus it prevents those trees from absorbing more CO2. The main causes of deforestation are: permanent land-use change from forest to agricultural land producing products such as beef and palm oil (27%), logging to produce forestry/forest products (26%), short term shifting cultivation (24%), and wildfires (23%).The type of vegetation in a region affects the local temperature. It impacts how much of the sunlight gets reflected back into space (albedo), and how much heat is lost by evaporation. For instance, the change from a dark forest to grassland makes the surface lighter, causing it to reflect more sunlight. Deforestation can also affect temperatures by modifying the release of chemical compounds that influence clouds, and by changing wind patterns. In tropic and temperate areas the net effect is to produce significant warming, while at latitudes closer to the poles a gain of albedo (as forest is replaced by snow cover) leads to a cooling effect. Globally, these effects are estimated to have led to a slight cooling, dominated by an increase in surface albedo. According to FAO, forest degradation aggravates the impacts of climate change as it reduces the carbon sequestration abilities of forests. Indeed, among their many benefits, forests also have the potential to reduce the impact of high temperatures.
Solar and volcanic activity
As the Sun is the Earth's primary energy source, changes in incoming sunlight directly affect the climate system. Solar irradiance has been measured directly by satellites, and indirect measurements are available from the early 1600s onwards. Since 1880, there has been no upward trend in the amount of the Sun's energy reaching the Earth.Explosive volcanic eruptions represent the largest natural forcing over the industrial era. When the eruption is sufficiently strong (with sulfur dioxide reaching the stratosphere), sunlight can be partially blocked for a couple of years. The temperature signal lasts about twice as long. In the industrial era, volcanic activity has had negligible impacts on global temperature trends. Present-day volcanic CO2 emissions are equivalent to less than 1% of current anthropogenic CO2 emissions.Physical climate models are unable to reproduce the rapid warming observed in recent decades when taking into account only variations in solar output and volcanic activity. Further evidence for greenhouse gases causing global warming comes from measurements that show a warming of the lower atmosphere (the troposphere), coupled with a cooling of the upper atmosphere (the stratosphere). If solar variations were responsible for the observed warming, the troposphere and stratosphere would both warm.
Climate change feedback
The response of the climate system to an initial forcing is modified by feedbacks: increased by "self-reinforcing" or "positive" feedbacks and reduced by "balancing" or "negative" feedbacks. The main reinforcing feedbacks are the water-vapour feedback, the ice–albedo feedback, and the net effect of clouds. The primary balancing mechanism is radiative cooling, as Earth's surface gives off more heat to space in response to rising temperature. In addition to temperature feedbacks, there are feedbacks in the carbon cycle, such as the fertilizing effect of CO2 on plant growth. Uncertainty over feedbacks is the major reason why different climate models project different magnitudes of warming for a given amount of emissions.As air warms, it can hold more moisture. Water vapour, as a potent greenhouse gas, holds heat in the atmosphere. If cloud cover increases, more sunlight will be reflected back into space, cooling the planet. If clouds become higher and thinner, they act as an insulator, reflecting heat from below back downwards and warming the planet. The effect of clouds is the largest source of feedback uncertainty.Another major feedback is the reduction of snow cover and sea ice in the Arctic, which reduces the reflectivity of the Earth's surface.
More of the Sun's energy is now absorbed in these regions, contributing to amplification of Arctic temperature changes. Arctic amplification is also melting permafrost, which releases methane and CO2 into the atmosphere. Climate change can also cause methane releases from wetlands, marine systems, and freshwater systems. Overall, climate feedbacks are expected to become increasingly positive.Around half of human-caused CO2 emissions have been absorbed by land plants and by the oceans. Climate change increases droughts and heat waves that inhibit plant growth, which makes it uncertain whether this carbon sink will continue to grow. Soils contain large quantities of carbon and may release some when they heat up. As more CO2 and heat are absorbed by the ocean, it acidifies, its circulation changes and phytoplankton takes up less carbon, decreasing the rate at which the ocean absorbs atmospheric carbon. Overall, at higher CO2 concentrations the Earth will absorb a reduced fraction of our emissions.
Modelling
A climate model is a representation of the physical, chemical and biological processes that affect the climate system. Models also include natural processes like changes in the Earth's orbit, historical changes in the Sun's activity, and volcanic forcing. Models are used to estimate the degree of warming future emissions will cause when accounting for the strength of climate feedbacks, or reproduce and predict the circulation of the oceans, the annual cycle of the seasons, and the flows of carbon between the land surface and the atmosphere.The physical realism of models is tested by examining their ability to simulate contemporary or past climates. Past models have underestimated the rate of Arctic shrinkage and underestimated the rate of precipitation increase. Sea level rise since 1990 was underestimated in older models, but more recent models agree well with observations. The 2017 United States-published National Climate Assessment notes that "climate models may still be underestimating or missing relevant feedback processes". Additionally, climate models may be unable to adequately predict short-term regional climatic shifts.
A subset of climate models add societal factors to a simple physical climate model. These models simulate how population, economic growth, and energy use affect—and interact with—the physical climate. With this information, these models can produce scenarios of future greenhouse gas emissions. This is then used as input for physical climate models and carbon cycle models to predict how atmospheric concentrations of greenhouse gases might change. Depending on the socioeconomic scenario and the mitigation scenario, models produce atmospheric CO2 concentrations that range widely between 380 and 1400 ppm.The IPCC Sixth Assessment Report projects that global warming is very likely to reach 1.0 °C to 1.8 °C by the late 21st century under the very low GHG emissions scenario. In an intermediate scenario global warming would reach 2.1 °C to 3.5 °C, and 3.3 °C to 5.7 °C under the very high GHG emissions scenario. These projections are based on climate models in combination with observations.The remaining carbon budget is determined by modelling the carbon cycle and the climate sensitivity to greenhouse gases. According to the IPCC, global warming can be kept below 1.5 °C with a two-thirds chance if emissions after 2018 do not exceed 420 or 570 gigatonnes of CO2. This corresponds to 10 to 13 years of current emissions. There are high uncertainties about the budget. For instance, it may be 100 gigatonnes of CO2 smaller due to methane release from permafrost and wetlands. However, it is clear that fossil fuel resources are too abundant for shortages to be relied on to limit carbon emissions in the 21st century.Even though the temperature will need to stay at or above 1.5 °C for 20 years to pass the threshold defined by the Paris agreement, a temporary rise above this limit also can have severe consequences. According to the World Meteorological Organization, there is a 66% chance that global temperature will rise temporarily above 1.5 °C in the years 2023–2027.
Impacts
Environmental effects
The environmental effects of climate change are broad and far-reaching, affecting oceans, ice, and weather. Changes may occur gradually or rapidly. Evidence for these effects comes from studying climate change in the past, from modelling, and from modern observations. Since the 1950s, droughts and heat waves have appeared simultaneously with increasing frequency. Extremely wet or dry events within the monsoon period have increased in India and East Asia. The rainfall rate and intensity of hurricanes and typhoons is likely increasing, and the geographic range likely expanding poleward in response to climate warming. Frequency of tropical cyclones has not increased as a result of climate change.
Global sea level is rising as a consequence of glacial melt, melt of the Greenland ice sheets and Antarctica, and thermal expansion. Between 1993 and 2020, the rise increased over time, averaging 3.3 ± 0.3 mm per year. Over the 21st century, the IPCC projects that in a very high emissions scenario the sea level could rise by 61–110 cm. Increased ocean warmth is undermining and threatening to unplug Antarctic glacier outlets, risking a large melt of the ice sheet and the possibility of a 2-meter sea level rise by 2100 under high emissions.Climate change has led to decades of shrinking and thinning of the Arctic sea ice. While ice-free summers are expected to be rare at 1.5 °C degrees of warming, they are set to occur once every three to ten years at a warming level of 2 °C. Higher atmospheric CO2 concentrations have led to changes in ocean chemistry. An increase in dissolved CO2 is causing oceans to acidify. In addition, oxygen levels are decreasing as oxygen is less soluble in warmer water. Dead zones in the ocean, regions with very little oxygen, are expanding too.
Tipping points and long-term impacts
Greater degrees of global warming increase the risk of passing through 'tipping points'—thresholds beyond which certain impacts can no longer be avoided even if temperatures are reduced. An example is the collapse of West Antarctic and Greenland ice sheets, where a temperature rise of 1.5 to 2 °C may commit the ice sheets to melt, although the time scale of melt is uncertain and depends on future warming. Some large-scale changes could occur over a short time period, such as a shutdown of certain ocean currents like the Atlantic meridional overturning circulation (AMOC). Tipping points can also include irreversible damage to ecosystems like the Amazon rainforest and coral reefs.The long-term effects of climate change on oceans include further ice melt, ocean warming, sea level rise, and ocean acidification. On the timescale of centuries to millennia, the magnitude of climate change will be determined primarily by anthropogenic CO2 emissions. This is due to CO2's long atmospheric lifetime. Oceanic CO2 uptake is slow enough that ocean acidification will continue for hundreds to thousands of years. These emissions are estimated to have prolonged the current interglacial period by at least 100,000 years. Sea level rise will continue over many centuries, with an estimated rise of 2.3 metres per degree Celsius (4.2 ft/°F) after 2000 years.
Nature and wildlife
Recent warming has driven many terrestrial and freshwater species poleward and towards higher altitudes. Higher atmospheric CO2 levels and an extended growing season have resulted in global greening. However, heatwaves and drought have reduced ecosystem productivity in some regions. The future balance of these opposing effects is unclear. Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. The size and speed of global warming is making abrupt changes in ecosystems more likely. Overall, it is expected that climate change will result in the extinction of many species.The oceans have heated more slowly than the land, but plants and animals in the ocean have migrated towards the colder poles faster than species on land. Just as on land, heat waves in the ocean occur more frequently due to climate change, harming a wide range of organisms such as corals, kelp, and seabirds. Ocean acidification makes it harder for marine calcifying organisms such as mussels, barnacles and corals to produce shells and skeletons; and heatwaves have bleached coral reefs. Harmful algal blooms enhanced by climate change and eutrophication lower oxygen levels, disrupt food webs and cause great loss of marine life. Coastal ecosystems are under particular stress. Almost half of global wetlands have disappeared due to climate change and other human impacts.
Humans
The effects of climate change are impacting humans everywhere in the world. Impacts can be observed on all continents and ocean regions, with low-latitude, less developed areas facing the greatest risk. Continued warming has potentially "severe, pervasive and irreversible impacts" for people and ecosystems. The risks are unevenly distributed, but are generally greater for disadvantaged people in developing and developed countries.
Food and health
The WHO calls climate change the greatest threat to global health in the 21st century. Extreme weather leads to injury and loss of life, and crop failures to malnutrition. Various infectious diseases are more easily transmitted in a warmer climate, such as dengue fever and malaria. Young children are the most vulnerable to food shortages. Both children and older people are vulnerable to extreme heat. The World Health Organization (WHO) has estimated that between 2030 and 2050, climate change would cause around 250,000 additional deaths per year. They assessed deaths from heat exposure in elderly people, increases in diarrhea, malaria, dengue, coastal flooding, and childhood malnutrition. Over 500,000 more adult deaths are projected yearly by 2050 due to reductions in food availability and quality. By 2100, 50% to 75% of the global population may face climate conditions that are life-threatening due to combined effects of extreme heat and humidity.Climate change is affecting food security. It has caused reduction in global yields of maize, wheat, and soybeans between 1981 and 2010. Future warming could further reduce global yields of major crops. Crop production will probably be negatively affected in low-latitude countries, while effects at northern latitudes may be positive or negative. Up to an additional 183 million people worldwide, particularly those with lower incomes, are at risk of hunger as a consequence of these impacts. Climate change also impacts fish populations. Globally, less will be available to be fished. Regions dependent on glacier water, regions that are already dry, and small islands have a higher risk of water stress due to climate change.
Inequality
Economic damages due to climate change may be severe and there is a chance of disastrous consequences. Climate change has likely already increased global economic inequality, and this trend is projected to continue. Most of the severe impacts are expected in sub-Saharan Africa, where most of the local inhabitants are dependent upon natural and agricultural resources and South-East Asia. The World Bank estimates that climate change could drive over 120 million people into poverty by 2030.Inequalities based on wealth and social status have worsened due to climate change. Major difficulties in mitigating, adapting, and recovering to climate shocks are faced by marginalized people who have less control over resources. Indigenous people, who are subsistent on their land and ecosystems, will face endangerment to their wellness and lifestyles due to climate change. An expert elicitation concluded that the role of climate change in armed conflict has been small compared to factors such as socio-economic inequality and state capabilities.While women are not inherently more at risk from climate change and shocks, limits on women's resources and discriminatory gender norms constrain their adaptive capacity and resilience. For example, women’s work burdens, including hours worked in agriculture, tend to decline less than men's during climate shocks such as heat stress.
Climate migration
Low-lying islands and coastal communities are threatened by sea level rise, which makes flooding more common. Sometimes, land is permanently lost to the sea. This could lead to statelessness for people in island nations, such as the Maldives and Tuvalu. In some regions, the rise in temperature and humidity may be too severe for humans to adapt to. With worst-case climate change, models project that almost one-third of humanity might live in extremely hot and uninhabitable climates, similar to the climate found in the Sahara.These factors can drive climate or environmental migration, within and between countries. More people are expected to be displaced because of sea level rise, extreme weather and conflict from increased competition over natural resources. Climate change may also increase vulnerability, leading to "trapped populations" who are not able to move due to a lack of resources.
Reducing and recapturing emissions
Climate change can be mitigated by reducing the rate at which greenhouse gases are emitted into the atmosphere, and by increasing the rate at which carbon dioxide is removed from the atmosphere. In order to limit global warming to less than 1.5 °C global greenhouse gas emissions needs to be net-zero by 2050, or by 2070 with a 2 °C target. This requires far-reaching, systemic changes on an unprecedented scale in energy, land, cities, transport, buildings, and industry. The United Nations Environment Programme estimates that countries need to triple their pledges under the Paris Agreement within the next decade to limit global warming to 2 °C. An even greater level of reduction is required to meet the 1.5 °C goal. With pledges made under the Paris Agreement as of October 2021, global warming would still have a 66% chance of reaching about 2.7 °C (range: 2.2–3.2 °C) by the end of the century. Globally, limiting warming to 2 °C may result in higher economic benefits than economic costs.Although there is no single pathway to limit global warming to 1.5 or 2 °C, most scenarios and strategies see a major increase in the use of renewable energy in combination with increased energy efficiency measures to generate the needed greenhouse gas reductions. To reduce pressures on ecosystems and enhance their carbon sequestration capabilities, changes would also be necessary in agriculture and forestry, such as preventing deforestation and restoring natural ecosystems by reforestation.Other approaches to mitigating climate change have a higher level of risk. Scenarios that limit global warming to 1.5 °C typically project the large-scale use of carbon dioxide removal methods over the 21st century. There are concerns, though, about over-reliance on these technologies, and environmental impacts. Solar radiation modification (SRM) is also a possible supplement to deep reductions in emissions. However, SRM raises significant ethical and legal concerns, and the risks are imperfectly understood.
Clean energy
Renewable energy is key to limiting climate change. For decades, fossil fuels have accounted for roughly 80% of the world's energy use. The remaining share has been split between nuclear power and renewables (including hydropower, bioenergy, wind and solar power and geothermal energy). That mix is projected to change significantly over the next 30 years. Fossil fuel use is expected to peak prior to 2030, and begin to decline by then. Coal use will experience the sharpest decline. Solar panels and onshore wind are now among the cheapest forms of adding new power generation capacity in many locations. Renewables represented 75% of all new electricity generation installed in 2019, nearly all solar and wind. Other forms of clean energy, such as nuclear and hydropower, currently have a larger share of the energy supply. However, their future growth forecasts appear limited in comparison.To achieve carbon neutrality by 2050, renewable energy would become the dominant form of electricity generation, rising to 85% or more by 2050 in some scenarios. Investment in coal would be eliminated and coal use nearly phased out by 2050.Electricity generated from renewable sources would also need to become the main energy source for heating and transport. Transport can switch away from internal combustion engine vehicles and towards electric vehicles, public transit, and active transport (cycling and walking). For shipping and flying, low-carbon fuels would reduce emissions. Heating could be increasingly decarbonised with technologies like heat pumps.There are obstacles to the continued rapid growth of clean energy, including renewables. For wind and solar, there are environmental and land use concerns for new projects. Wind and solar also produce energy intermittently and with seasonal variability. Traditionally, hydro dams with reservoirs and conventional power plants have been used when variable energy production is low. Going forward, battery storage can be expanded, energy demand and supply can be matched, and long-distance transmission can smooth variability of renewable outputs. Bioenergy is often not carbon-neutral and may have negative consequences for food security. The growth of nuclear power is constrained by controversy around radioactive waste, nuclear weapon proliferation, and accidents. Hydropower growth is limited by the fact that the best sites have been developed, and new projects are confronting increased social and environmental concerns.Low-carbon energy improves human health by minimising climate change. It also has the near-term benefit of reducing air pollution deaths, which were estimated at 7 million annually in 2016. Meeting the Paris Agreement goals that limit warming to a 2 °C increase could save about a million of those lives per year by 2050, whereas limiting global warming to 1.5 °C could save millions and simultaneously increase energy security and reduce poverty. Improving air quality also has economic benefits which may be larger than mitigation costs.
Energy conservation
Reducing energy demand is another major aspect of reducing emissions. If less energy is needed, there is more flexibility for clean energy development. It also makes it easier to manage the electricity grid, and minimises carbon-intensive infrastructure development. Major increases in energy efficiency investment will be required to achieve climate goals, comparable to the level of investment in renewable energy. Several COVID-19 related changes in energy use patterns, energy efficiency investments, and funding have made forecasts for this decade more difficult and uncertain.Strategies to reduce energy demand vary by sector. In the transport sector, passengers and freight can switch to more efficient travel modes, such as buses and trains, or use electric vehicles. Industrial strategies to reduce energy demand include improving heating systems and motors, designing less energy-intensive products, and increasing product lifetimes. In the building sector the focus is on better design of new buildings, and higher levels of energy efficiency in retrofitting. The use of technologies like heat pumps can also increase building energy efficiency.
Agriculture and industry
Agriculture and forestry face a triple challenge of limiting greenhouse gas emissions, preventing the further conversion of forests to agricultural land, and meeting increases in world food demand. A set of actions could reduce agriculture and forestry-based emissions by two thirds from 2010 levels. These include reducing growth in demand for food and other agricultural products, increasing land productivity, protecting and restoring forests, and reducing greenhouse gas emissions from agricultural production.On the demand side, a key component of reducing emissions is shifting people towards plant-based diets. Eliminating the production of livestock for meat and dairy would eliminate about 3/4ths of all emissions from agriculture and other land use. Livestock also occupy 37% of ice-free land area on Earth and consume feed from the 12% of land area used for crops, driving deforestation and land degradation.Steel and cement production are responsible for about 13% of industrial CO2 emissions. In these industries, carbon-intensive materials such as coke and lime play an integral role in the production, so that reducing CO2 emissions requires research into alternative chemistries.
Carbon sequestration
Natural carbon sinks can be enhanced to sequester significantly larger amounts of CO2 beyond naturally occurring levels. Reforestation and tree planting on non-forest lands are among the most mature sequestration techniques, although the latter raises food security concerns. Farmers can promote sequestration of carbon in soils through practices such as use of winter cover crops, reducing the intensity and frequency of tillage, and using compost and manure as soil amendments. In one of its recent publications, FAO maintains that forest and landscape restoration yields many benefits for the climate, including greenhouse gas emissions sequestration and reduction. Restoration/recreation of coastal wetlands, prairie plots and seagrass meadows increases the uptake of carbon into organic matter. When carbon is sequestered in soils and in organic matter such as trees, there is a risk of the carbon being re-released into the atmosphere later through changes in land use, fire, or other changes in ecosystems.Where energy production or CO2-intensive heavy industries continue to produce waste CO2, the gas can be captured and stored instead of released to the atmosphere. Although its current use is limited in scale and expensive, carbon capture and storage (CCS) may be able to play a significant role in limiting CO2 emissions by mid-century. This technique, in combination with bioenergy (BECCS) can result in net negative emissions: CO2 is drawn from the atmosphere. It remains highly uncertain whether carbon dioxide removal techniques will be able to play a large role in limiting warming to 1.5 °C. Policy decisions that rely on carbon dioxide removal increase the risk of global warming rising beyond international goals.
Adaptation
Adaptation is "the process of adjustment to current or expected changes in climate and its effects".: 5 Without additional mitigation, adaptation cannot avert the risk of "severe, widespread and irreversible" impacts. More severe climate change requires more transformative adaptation, which can be prohibitively expensive. The capacity and potential for humans to adapt is unevenly distributed across different regions and populations, and developing countries generally have less. The first two decades of the 21st century saw an increase in adaptive capacity in most low- and middle-income countries with improved access to basic sanitation and electricity, but progress is slow. Many countries have implemented adaptation policies. However, there is a considerable gap between necessary and available finance.Adaptation to sea level rise consists of avoiding at-risk areas, learning to live with increased flooding and protection. If that fails, managed retreat may be needed. There are economic barriers for tackling dangerous heat impact. Avoiding strenuous work or having air conditioning is not possible for everybody. In agriculture, adaptation options include a switch to more sustainable diets, diversification, erosion control and genetic improvements for increased tolerance to a changing climate. Insurance allows for risk-sharing, but is often difficult to get for people on lower incomes. Education, migration and early warning systems can reduce climate vulnerability. Planting mangroves or encouraging other coastal vegetation can buffer storms.Ecosystems adapt to climate change, a process that can be supported by human intervention. By increasing connectivity between ecosystems, species can migrate to more favourable climate conditions. Species can also be introduced to areas acquiring a favorable climate. Protection and restoration of natural and semi-natural areas helps build resilience, making it easier for ecosystems to adapt. Many of the actions that promote adaptation in ecosystems, also help humans adapt via ecosystem-based adaptation. For instance, restoration of natural fire regimes makes catastrophic fires less likely, and reduces human exposure. Giving rivers more space allows for more water storage in the natural system, reducing flood risk. Restored forest acts as a carbon sink, but planting trees in unsuitable regions can exacerbate climate impacts.There are synergies but also trade-offs between adaptation and mitigation. An example for synergy is increased food productivity which has large benefits for both adaptation and mitigation. Two examples for trade-offs include: Firstly, the increased use of air conditioning allows people to better cope with heat, but increases energy demand. Secondly, more compact urban development may lead to reduced emissions from transport and construction which is good. But at the same time, this kind of urban development may increase the urban heat island effect, leading to higher temperatures and increased exposure of people to heat-related health risks.
Policies and politics
Countries that are most vulnerable to climate change have typically been responsible for a small share of global emissions. This raises questions about justice and fairness. Climate change is strongly linked to sustainable development. Limiting global warming makes it easier to achieve Sustainable Development Goals, such as eradicating poverty and reducing inequalities. The connection is recognised in Sustainable Development Goal 13 which is to "take urgent action to combat climate change and its impacts". The goals on food, clean water and ecosystem protection have synergies with climate mitigation.The geopolitics of climate change is complex. It has often been framed as a free-rider problem, in which all countries benefit from mitigation done by other countries, but individual countries would lose from switching to a low-carbon economy themselves. This framing has been challenged. For instance, the benefits of a coal phase-out to public health and local environments exceed the costs in almost all regions. Furthermore, net importers of fossil fuels win economically from switching to clean energy, causing net exporters to face stranded assets: fossil fuels they cannot sell.
Policy options
A wide range of policies, regulations, and laws are being used to reduce emissions. As of 2019, carbon pricing covers about 20% of global greenhouse gas emissions. Carbon can be priced with carbon taxes and emissions trading systems. Direct global fossil fuel subsidies reached $319 billion in 2017, and $5.2 trillion when indirect costs such as air pollution are priced in. Ending these can cause a 28% reduction in global carbon emissions and a 46% reduction in air pollution deaths. Money saved on fossil subsidies could be used to support the transition to clean energy instead. More direct methods to reduce greenhouse gases include vehicle efficiency standards, renewable fuel standards, and air pollution regulations on heavy industry. Several countries require utilities to increase the share of renewables in power production.
Climate justice
Policy designed through the lens of climate justice tries to address human rights issues and social inequality. For instance, wealthy nations responsible for the largest share of emissions would have to pay poorer countries to adapt. A 2023 study published in One Earth estimated that the top 21 fossil fuel companies would owe cumulative climate reparations of $5.4 trillion over the period 2025–2050. As the use of fossil fuels is reduced, jobs in the sector are lost. To achieve a just transition, these people would need to be retrained for other jobs. Communities with many fossil fuel workers would need additional investments.
International climate agreements
Nearly all countries in the world are parties to the 1994 United Nations Framework Convention on Climate Change (UNFCCC). The goal of the UNFCCC is to prevent dangerous human interference with the climate system. As stated in the convention, this requires that greenhouse gas concentrations are stabilised in the atmosphere at a level where ecosystems can adapt naturally to climate change, food production is not threatened, and economic development can be sustained. The UNFCCC does not itself restrict emissions but rather provides a framework for protocols that do. Global emissions have risen since the UNFCCC was signed. Its yearly conferences are the stage of global negotiations.The 1997 Kyoto Protocol extended the UNFCCC and included legally binding commitments for most developed countries to limit their emissions. During the negotiations, the G77 (representing developing countries) pushed for a mandate requiring developed countries to "[take] the lead" in reducing their emissions, since developed countries contributed most to the accumulation of greenhouse gases in the atmosphere. Per-capita emissions were also still relatively low in developing countries and developing countries would need to emit more to meet their development needs.The 2009 Copenhagen Accord has been widely portrayed as disappointing because of its low goals, and was rejected by poorer nations including the G77. Associated parties aimed to limit the global temperature rise to below 2 °C. The Accord set the goal of sending $100 billion per year to developing countries for mitigation and adaptation by 2020, and proposed the founding of the Green Climate Fund. As of 2020, only 83.3 billion were delivered. Only in 2023 the target is expected to be achieved.In 2015 all UN countries negotiated the Paris Agreement, which aims to keep global warming well below 2.0 °C and contains an aspirational goal of keeping warming under 1.5 °C. The agreement replaced the Kyoto Protocol. Unlike Kyoto, no binding emission targets were set in the Paris Agreement. Instead, a set of procedures was made binding. Countries have to regularly set ever more ambitious goals and reevaluate these goals every five years. The Paris Agreement restated that developing countries must be financially supported. As of October 2021, 194 states and the European Union have signed the treaty and 191 states and the EU have ratified or acceded to the agreement.The 1987 Montreal Protocol, an international agreement to stop emitting ozone-depleting gases, may have been more effective at curbing greenhouse gas emissions than the Kyoto Protocol specifically designed to do so. The 2016 Kigali Amendment to the Montreal Protocol aims to reduce the emissions of hydrofluorocarbons, a group of powerful greenhouse gases which served as a replacement for banned ozone-depleting gases. This made the Montreal Protocol a stronger agreement against climate change.
National responses
In 2019, the United Kingdom parliament became the first national government to declare a climate emergency. Other countries and jurisdictions followed suit. That same year, the European Parliament declared a "climate and environmental emergency". The European Commission presented its European Green Deal with the goal of making the EU carbon-neutral by 2050. Major countries in Asia have made similar pledges: South Korea and Japan have committed to become carbon-neutral by 2050, and China by 2060. In 2021, the European Commission released its "Fit for 55" legislation package, which contains guidelines for the car industry; all new cars on the European market must be zero-emission vehicles from 2035. While India has strong incentives for renewables, it also plans a significant expansion of coal in the country. Vietnam is among very few coal-dependent fast developing countries that pledged to phase out unabated coal power by the 2040s or as soon as possible thereafter.As of 2021, based on information from 48 national climate plans, which represent 40% of the parties to the Paris Agreement, estimated total greenhouse gas emissions will be 0.5% lower compared to 2010 levels, below the 45% or 25% reduction goals to limit global warming to 1.5 °C or 2 °C, respectively.
Society
Denial and misinformation
Public debate about climate change has been strongly affected by climate change denial and misinformation, which originated in the United States and has since spread to other countries, particularly Canada and Australia. The actors behind climate change denial form a well-funded and relatively coordinated coalition of fossil fuel companies, industry groups, conservative think tanks, and contrarian scientists. Like the tobacco industry, the main strategy of these groups has been to manufacture doubt about scientific data and results. Many who deny, dismiss, or hold unwarranted doubt about the scientific consensus on anthropogenic climate change are labelled as "climate change skeptics", which several scientists have noted is a misnomer.There are different variants of climate denial: some deny that warming takes place at all, some acknowledge warming but attribute it to natural influences, and some minimise the negative impacts of climate change. Manufacturing uncertainty about the science later developed into a manufactured controversy: creating the belief that there is significant uncertainty about climate change within the scientific community in order to delay policy changes. Strategies to promote these ideas include criticism of scientific institutions, and questioning the motives of individual scientists. An echo chamber of climate-denying blogs and media has further fomented misunderstanding of climate change.
Public awareness and opinion
Climate change came to international public attention in the late 1980s. Due to media coverage in the early 1990s, people often confused climate change with other environmental issues like ozone depletion. In popular culture, the climate fiction movie The Day After Tomorrow (2004) and the Al Gore documentary An Inconvenient Truth (2006) focused on climate change.Significant regional, gender, age and political differences exist in both public concern for, and understanding of, climate change. More highly educated people, and in some countries, women and younger people, were more likely to see climate change as a serious threat. Partisan gaps also exist in many countries, and countries with high CO2 emissions tend to be less concerned. Views on causes of climate change vary widely between countries. Concern has increased over time, to the point where in 2021 a majority of citizens in many countries express a high level of worry about climate change, or view it as a global emergency. Higher levels of worry are associated with stronger public support for policies that address climate change.
Climate movement
Climate protests demand that political leaders take action to prevent climate change. They can take the form of public demonstrations, fossil fuel divestment, lawsuits and other activities. Prominent demonstrations include the School Strike for Climate. In this initiative, young people across the globe have been protesting since 2018 by skipping school on Fridays, inspired by Swedish teenager Greta Thunberg. Mass civil disobedience actions by groups like Extinction Rebellion have protested by disrupting roads and public transport. Litigation is increasingly used as a tool to strengthen climate action from public institutions and companies. Activists also initiate lawsuits which target governments and demand that they take ambitious action or enforce existing laws on climate change. Lawsuits against fossil-fuel companies generally seek compensation for loss and damage.
History
Early discoveries
Scientists in the 19th century such as Alexander von Humboldt began to foresee the effects of climate change. In the 1820s, Joseph Fourier proposed the greenhouse effect to explain why Earth's temperature was higher than the sun's energy alone could explain. Earth's atmosphere is transparent to sunlight, so sunlight reaches the surface where it is converted to heat. However, the atmosphere is not transparent to heat radiating from the surface, and captures some of that heat, which in turn warms the planet.In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and that the effect is even greater with carbon dioxide (CO2). She concluded that "An atmosphere of that gas would give to our earth a high temperature..."Starting in 1859, John Tyndall established that nitrogen and oxygen—together totaling 99% of dry air—are transparent to radiated heat. However, water vapour and gases such as methane and carbon dioxide absorb radiated heat and re-radiate that heat into the atmosphere. Tyndall proposed that changes in the concentrations of these gases may have caused climatic changes in the past, including ice ages.Svante Arrhenius noted that water vapour in air continuously varied, but the CO2 concentration in air was influenced by long-term geological processes. Warming from increased CO2 levels would increase the amount of water vapour, amplifying warming in a positive feedback loop. In 1896, he published the first climate model of its kind, projecting that halving CO2 levels could have produced a drop in temperature initiating an ice age. Arrhenius calculated the temperature increase expected from doubling CO2 to be around 5–6 °C. Other scientists were initially skeptical and believed that the greenhouse effect was saturated so that adding more CO2 would make no difference, and that the climate would be self-regulating. Beginning in 1938, Guy Stewart Callendar published evidence that climate was warming and CO2 levels were rising, but his calculations met the same objections.
Development of a scientific consensus
In the 1950s, Gilbert Plass created a detailed computer model that included different atmospheric layers and the infrared spectrum. This model predicted that increasing CO2 levels would cause warming. Around the same time, Hans Suess found evidence that CO2 levels had been rising, and Roger Revelle showed that the oceans would not absorb the increase. The two scientists subsequently helped Charles Keeling to begin a record of continued increase, which has been termed the "Keeling Curve". Scientists alerted the public, and the dangers were highlighted at James Hansen's 1988 Congressional testimony. The Intergovernmental Panel on Climate Change (IPCC), set up in 1988 to provide formal advice to the world's governments, spurred interdisciplinary research. As part of the IPCC reports, scientists assess the scientific discussion that takes place in peer-reviewed journal articles.There is a near-complete scientific consensus that the climate is warming and that this is caused by human activities. As of 2019, agreement in recent literature reached over 99%. No scientific body of national or international standing disagrees with this view. Consensus has further developed that some form of action should be taken to protect people against the impacts of climate change. National science academies have called on world leaders to cut global emissions. The 2021 IPCC Assessment Report stated that it is "unequivocal" that climate change is caused by humans.
See also
Anthropocene – proposed new geological time interval in which humans are having significant geological impact
List of climate scientists
References
Sources
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 (license statement/permission). Text taken from The status of women in agrifood systems – Overview, FAO, FAO.
IPCC reports
Other peer-reviewed sources
Books, reports and legal documents
Non-technical sources
External links
Intergovernmental Panel on Climate Change
UK Met Office: Climate Guide
NOAA Climate website – National Oceanic and Atmospheric Administration in the United States |
oyster farming | Oyster farming is an aquaculture (or mariculture) practice in which oysters are bred and raised mainly for their pearls, shells and inner organ tissue, which is eaten. Oyster farming was practiced by the ancient Romans as early as the 1st century BC on the Italian peninsula and later in Britain for export to Rome. The French oyster industry has relied on aquacultured oysters since the late 18th century.
History
Oyster farming was practiced by the ancient Romans as early as the 1st century BC on the Italian peninsula. With the Barbarian invasions the oyster farming in the Mediterranean and the Atlantic came to an end.
In fact, the Romans were the very first to cultivate Oysters. The Roman engineer Sergius Orata is known for his innovative ways of breeding and commercializing oysters. He did this by cultivating the mollusk with a system that could control the water levels.In 1852 Monsieur de Bon started to re-seed the oyster beds by collecting the oyster spawn using makeshift catchers. An important step to the modern oyster farming was the oyster farm built by Hyacinthe Boeuf in the Ile de Ré. After obtaining the rights to a part of the coast he built a wall to make a reservoir and to break the strength of the current. Some time later the wall was covered with spat coming spontaneously from the sea which gave 2000 baby oysters per square metre.The Ancient Romans started farming the Thames Estuary in Hampton-On-Sea, or Kent, England from the 1st Century to approximately the 4th Century. They would export the oysters back to Rome and throughout the Roman Empire. Then on July 25, 1864, The Herne Bay Hampton and Recuiver Oyster Fishery Company moved into the area to start oyster farming. In the 1870s the oyster trade suffered from overfishing and sent the industry into a decline. This caused the government of England to make the 1877 Act to solve the problem. This act prevented the sale of dredged oysters from the months of June through August, and freshwater pond oyster sales from between May and August. A couple of years later the company closed its doors and all the assets were sold by 1881, closing the oyster farming in the Thames Estuary area in England. Another place in England that is famous for its oyster fishing is Whistable. The area's “kentish flats” have been used since the Romans started. The oysters would get shipped to Italy, where Roman Emperors would pay for them by their weight in gold.
Varieties of farmed oysters
Commonly farmed food oysters include the Eastern oyster Crassostrea virginica, the Pacific oyster Crassostrea gigas, Belon oyster Ostrea edulis, the Sydney rock oyster Saccostrea glomerata, and the Southern mud oyster Ostrea angasi.
Cultivation
Oysters naturally grow in estuarine bodies of brackish water. When farmed, the temperature and salinity of the water are controlled (or at least monitored), so as to induce spawning and fertilization, as well as to speed the rate of maturation – which can take several years.
The first step to cultivating oysters is conditioning broodstock. Broodstock are the "parent" oysters that will provide gametes for larvae. Oysters in the wild are only "ripe" with gametes for a short window. All of the oysters in an area will spawn at the same time to increase the chances that their gametes meet and fertile larvae are produced. To ensure ripe oysters for spawning throughout the season, some growers choose to keep mature oysters in a separate system where the farmer can manipulate the temperature and food within the system. While a recirculating system can be used, a flow-through system is generally better because the natural diversity of phytoplankton is a better diet for conditioning oysters. By setting up this separate system, the farmer can mimic the transition from winter to summer quicker than real-time, and essentially convince the oyster that it is time to spawn whenever the farmer needs more larvae.
When the farmer actually wants to spawn the oysters, they will put a batch of oysters in a tray and rapidly heat and cool the water to induce spawning. It is important to have a large number of oysters, because it is impossible to tell if an oyster is male or female from its outer appearance. Once the oysters start to spawn they can be picked up and placed into their own separate containers until they have released all of their gametes. Eggs and sperm can then be mixed together to fertilize.Larvae tanks should be cleaned and disinfected before putting water in the tanks. Water quality should be tailored for the particular species, but most larvae will generally grow faster in warmer water. After the fertilized eggs and beginning-stage larvae have been added to the tank, they should be fed filtered or cultured algae daily, and have their water changed every-other day. This ensures no pathogens or foreign organisms enter the system and compete with or eat the larvae, and their water quality stays pristine to encourage growth. This is the most fragile stage of an oyster's life history.After about two weeks an oyster will be ready to set. They will develop a small, round discoloration called an eyespot despite not being used for seeing. Their muscular foot will be visible under a microscope. At this point, the larvae can be put in a system with a variety of cultch options. The best cultch is usually full or ground up oyster shell because oysters are naturally attracted to other oyster shell to ensure their future reproductive success. After the larvae settle, they are considered "spat."
Three methods of cultivation are commonly used. In each case oysters are cultivated to the size of "spat," the point at which they attach themselves to a substrate. The substrate is known as a "cultch" (also spelled "cutch" or "culch"). The loose spat may be allowed to mature further to form "seed" oysters with small shells. In either case (spat or seed stage), they are then set out to mature. The maturation technique is where the cultivation method choice is made.
In one method the spat or seed oysters are distributed over existing oyster beds and left to mature naturally. Such oysters will then be collected using the methods for fishing wild oysters, such as dredging.
In the second method the spat or seed may be put in racks, bags, or cages (or they may be glued in threes to vertical ropes) which are held above the bottom. Oysters cultivated in this manner may be harvested by lifting the bags or racks to the surface and removing mature oysters, or simply retrieving the larger oysters when the enclosure is exposed at low tide. The latter method may avoid losses to some predators, but is more expensive.In the third method the spat or seed are placed in a cultch within an artificial maturation tank. The maturation tank may be fed with water that has been especially prepared for the purpose of accelerating the growth rate of the oysters. In particular the temperature and salinity of the water may be altered somewhat from nearby ocean water. The carbonate minerals calcite and aragonite in the water may help oysters develop their shells faster and may also be included in the water processing prior to introduction to the tanks. This latter cultivation technique may be the least susceptible to predators and poaching, but is the most expensive to build and to operate. The Pacific oyster M. gigas is the species most commonly used with this type of farming.
Boats
During the nineteenth century in the United States, various shallow draft sailboat designs were developed for oystering in Chesapeake Bay. These included the bugeye, log canoe, pungy, sharpie and skipjack. During the 1880s, a powerboat called the Chesapeake Bay deadrise was also developed.
Since 1977, several boat builders in Brittany have built specialized amphibious vehicles for use in the area's mussel and oyster farming industries. The boats are made of aluminium, are relatively flat-bottomed, and have three, four, or six wheels, depending on the size of the boat. When the tide is out the boats can run on the tidal flats using their wheels. When the tide is in, they use a propeller to move themselves through the water. Oyster farmers in Jersey make use of similar boats.
Environmental impact
The farming of oysters and other shellfish is restorative environmentally, and holds promise for relieving pressure on land-based protein sources. Restoration of oyster populations is encouraged for the ecosystem services they provide, including water quality maintenance, shoreline protection and sediment stabilization, nutrient cycling and sequestration, and habitat for other organisms. Since there has been a decline in oyster population Oyster reef restoration has been huge in the past decades and a native Olympia oyster restoration project has taken place in Liberty Bay, Washington. Oyster farming in the Chesapeake Bay has minimal to positive impacts on the surrounding environment, and numerous oyster restoration projects are underway in the Chesapeake Bay. In the U.S., Delaware is the only East Coast state without oyster aquaculture, but making aquaculture a state-controlled industry of leasing water by the acre for commercial harvesting of shellfish is being considered. Supporters of Delaware's legislation to allow aquaculture cite revenue, job creation, and nutrient cycling benefits. It is estimated that one acre can produce nearly 750,000 oysters, which could filter between 15 and 40 million gallons of water daily.Other sources state that a single oyster can filter 24–96 liters a day (1–4 liters per hour). With 750,000 oysters in one acre, 18,000,000-72,000,000 liters of water can be filtered, removing most forms of particulate matter suspended in the water column. The particulate matter oysters remove are sand, clay, silt, detritus, and phytoplankton. These particulates all could possibly contain harmful contamination that originates from anthropogenic sources (the land or directly flowing into the body of water). Instead of becoming ingested by other filter feeders that are then digested by bigger organisms, oysters can sequester these possibly harmful pollutants, and excrete them into the sediment at the bottom of waterways. To remove these contaminants from the sediment, species of seaweed can be added to take up these contaminants in their plant tissues that could be removed and taken to a contained area where the contamination is benign to the surrounding environment. More recently, large-scale cultivation of oysters and other shellfish has been proposed as a method to combat climate change, because the growth of the oyster shell sequesters atmospheric carbon dioxide in a form (calcium carbonate) that is stable over geologic time. In The United States, the cultivation of Pacific oysters in tidal areas not only improves water quality in the ocean but oyster cultivation also works to improve government policy. Oyster farming must obey federal regulations, maps, and models. Federal regulation monitors the safety of the environment and the health effects on humans. Carlsbad Aquafarm located in Southern California is cultivating Pacific oysters by using rafts and trays to utilize space to optimize production while operating near the newly opened Claude Lewis Carlsbad Desalination Plant. New adopted environmental impact regulations and policies were created and updated by The United States Environmental Protection Agency, which approved the location and construction of the Claude Lewis Carlsbad Desalination Plant through the federal Clean Water Act on April 7, 2016, whose main focus was minimizing environmental impact in conjunction with Carlsbad Aquafarm. Applications and permits for aquaculture projects such as the Avalon Ocean Farm are made public and required to follow the same guidelines of the EPA and the CWA. Water Quality, Marine Mammals (including endangered species), and forecasted environmental impact evaluations are listed in the project's description to minimize, manage, and mitigate its environmental impact.
Predators, diseases and pests
Oyster predators include starfish, oyster drill snails, stingrays, Florida stone crabs, birds, such as oystercatchers and gulls, and humans.
Pathogens that can affect either farmed C. virginica or C. gigas oysters include Perkinsus marinus (Dermo) and Haplosporidium nelsoni (MSX). However, C. virginica are much more susceptible to Dermo or MSX infections than are the C. gigas species of oyster. Pathogens of O. edulis oysters include Marteilia refringens and Bonamia ostreae. In the north Atlantic Ocean, oyster crabs may live in an endosymbiotic commensal relationship within a host oyster. Since oyster crabs are considered a food delicacy they may not be removed from young farmed oysters, as they can themselves be harvested for sale.
Dermo disease is caused by a protozoan parasite that infects the oyster's blood cells: Perkinsus marinus. It is spread when infective stages are released into the water column from an infected oyster and siphoned into a new host. It is most common in water above 77 °F.MSX stands for “Multinucleated Sphere Unknown” and is lethal to C. virginica. It is a single-celled protozoan with an unknown method of transmission between oysters. It does not appear to transfer from oyster-to-oyster like Dermo does. After an outbreak in 1997, a strain of MSX-resistant oysters were developed. MSX can be suppressed by low temperatures and low salinities, but once infected, oysters will die within a month.MSX and Dermo are both considered to be non-harmful to humans. Vibrio, however, is a disease that is carried by oysters and other shellfish and can make people sick, but is not harmful to the oyster itself. Vibrio can only be passed from oysters to humans if they are consumed raw. Vibrio is more common in warmer waters, and all commercial shellfish must be refrigerated before being served in an attempt to kill the vibrio bacterium.Polydorid polychaetes are known as pests of cultured oysters.
See also
Gathering seafood by hand
Oyster pirate
Oystering machinery
References
Further reading
External links
The History of Oyster Culture in BC. (1985). Malaspina College.
The Oystermen Documentary produced by Oregon Public Broadcasting |
cattle | Cattle (Bos taurus) are large, domesticated, bovid ungulates. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos. Mature female cattle are referred to as cows and mature male cattle are referred to as bulls. Colloquially, young female cattle (heifers), young male cattle (bullocks), and castrated male cattle (steers) are also referred to as "cows".
Cattle are commonly raised as livestock for meat (beef or veal, see beef cattle), for milk (see dairy cattle), and for hides, which are used to make leather. They are used as riding animals and draft animals (oxen or bullocks, which pull carts, plows and other implements). Another product of cattle is their dung, which can be used to create manure or fuel. In some regions, such as parts of India, cattle have considerable religious significance. Cattle, mostly small breeds such as the Miniature Zebu, are also kept as pets.
Different types of cattle are common to different geographic areas. Taurine cattle are found primarily in Europe and temperate areas of Asia, the Americas, and Australia. Zebus (also called indicine cattle) are found primarily in India and tropical areas of Asia, America, and Australia. Sanga cattle are found primarily in sub-Saharan Africa. These types (which are sometimes classified as separate species or subspecies) are further divided into over 1,000 recognized breeds.
Around 10,500 years ago, taurine cattle were domesticated from as few as 80 wild aurochs progenitors in central Anatolia, the Levant and Western Iran. A separate domestication event occurred in the Indian subcontinent, which gave rise to zebu. According to the Food and Agriculture Organization (FAO), there are approximately 1.5 billion cattle in the world as of 2018. Cattle are the main source of greenhouse gas emissions from livestock, and are responsible for around 10% of global greenhouse gas emissions. In 2009, cattle became one of the first livestock animals to have a fully mapped genome.
Taxonomy
Cattle were originally identified as three separate species: Bos taurus, the European or "taurine" cattle (including similar types from Africa and Asia); Bos indicus, the Indicine or "zebu"; and the extinct Bos primigenius, the aurochs. The aurochs is ancestral to both zebu and taurine cattle. They were later reclassified as one species, Bos taurus, with the aurochs, zebu, and taurine cattle as subspecies. However, this taxonomy is contentious and some sources prefer the separate species classification, such as the American Society of Mammalogists' Mammal Diversity Database.Complicating the matter is the ability of cattle to interbreed with other closely related species. Hybrid individuals and even breeds exist, not only between taurine cattle and zebu (such as the sanga cattle (Bos taurus africanus x Bos indicus), but also between one or both of these and some other members of the genus Bos – yaks (the dzo or yattle), banteng, and gaur. Hybrids such as the beefalo breed can even occur between taurine cattle and either species of bison, leading some authors to consider them part of the genus Bos, as well. The hybrid origin of some types may not be obvious – for example, genetic testing of the Dwarf Lulu breed, the only taurine-type cattle in Nepal, found them to be a mix of taurine cattle, zebu, and yak. However, cattle cannot be successfully hybridized with more distantly related bovines such as water buffalo or African buffalo.
The aurochs originally ranged throughout Europe, North Africa, and much of Asia. In historical times, its range became restricted to Europe, and the last known individual died in Mazovia, Poland, in about 1627. Breeders have attempted to recreate cattle of similar appearance to aurochs by crossing traditional types of domesticated cattle, creating the Heck cattle breed.
The only pure African taurine breeds (Bos taurus africanus) remaining are the N'Dama, Kuri and some varieties of the West African Shorthorn.
Etymology
Cattle did not originate as the term for bovine animals. It was borrowed from Anglo-Norman catel, itself from medieval Latin capitale 'principal sum of money, capital', itself derived in turn from Latin caput 'head'. Cattle originally meant movable personal property, especially livestock of any kind, as opposed to real property (the land, which also included wild or small free-roaming animals such as chickens—they were sold as part of the land). The word is a variant of chattel (a unit of personal property) and closely related to capital in the economic sense. The term replaced earlier Old English feoh 'cattle, property', which survives today as fee (cf. German: Vieh, Dutch: vee, Gothic: faihu).
The word cow came via Anglo-Saxon cū (plural cȳ), from Common Indo-European gʷōus (genitive gʷowés) 'a bovine animal', cf. Persian: gâv, Sanskrit: go-, Welsh: buwch. The plural cȳ became ki or kie in Middle English, and an additional plural ending was often added, giving kine, kien, but also kies, kuin and others. This is the origin of the now archaic English plural, kine. The Scots language singular is coo or cou, and the plural is kye.
In older English sources such as the King James Version of the Bible, cattle refers to livestock, as opposed to deer which refers to wildlife. Wild cattle may refer to feral cattle or to undomesticated species of the genus Bos. Today, when used without any other qualifier, the modern meaning of cattle is usually restricted to domesticated bovines.
Terminology
In general, the same words are used in different parts of the world, but with minor differences in the definitions. The terminology described here contrasts the differences in definition between the United Kingdom and other British-influenced parts of the world such as Canada, Australia, New Zealand, Ireland and the United States.
An "intact" (i.e., not castrated) adult male is called a bull.
A father bull is called a sire with reference to his offspring.
An adult female that has had a calf (or two, depending on regional usage) is a cow. Steers and heifers are also colloquially referred to as cows.
A mother cow is called a dam with reference to her offspring. Often, mentions of dams imply cows kept in the herd for repeated breeding (as opposed to heifers or cows sold off sooner).
A young female before she has had a calf of her own and who is under three years of age is called a heifer ( HEF-ər). A young female that has had only one calf is occasionally called a first-calf heifer. Heiferettes are either first-calf heifers or a subset thereof without potential to become lineage dams, depending on whose definition is operative.
Young cattle (regardless of sex) are called calves until they are weaned, then weaners until they are a year old in some areas; in other areas, particularly with male beef cattle, they may be known as feeder calves or feeders. After that, they are referred to as yearlings or stirks if between one and two years of age.
Feeder cattle or store cattle are young cattle soon to be either backgrounded or sent to fattening, most especially those intended to be sold to someone else for finishing. In some regions, a distinction between stockers and feeders (by those names) is the distinction of backgrounding versus immediate sale to a finisher.
A castrated male is called a steer in the United States; older steers are often called bullocks in other parts of the world, but in North America this term refers to a young bull. Piker bullocks are micky bulls (uncastrated young male bulls) that were caught, castrated and then later lost. In Australia, the term Japanese ox is used for grain-fed steers in the weight range of 500 to 650 kg that are destined for the Japanese meat trade. In North America, draft cattle under four years old are called working steers. Improper or late castration on a bull results in it becoming a coarse steer known as a stag in Australia, Canada and New Zealand. In some countries, an incompletely castrated male is known also as a rig.
A castrated male (occasionally a female or in some areas a bull) kept for draft or riding purposes is called an ox (plural oxen); ox may also be used to refer to some carcass products from any adult cattle, such as ox-hide, ox-blood, oxtail, or ox-liver.
A springer is a cow or heifer close to calving.
In all cattle species, a female twin of a bull usually becomes an infertile partial intersex, and is called a freemartin.
A wild, young, unmarked bull is known as a micky in Australia.
An unbranded bovine of either sex is called a maverick in the US and Canada.
Neat (horned oxen, from which neatsfoot oil is derived), beef (young ox) and beefing (young animal fit for slaughtering) are obsolete terms, although poll, pollard and polled cattle are still terms in use for naturally hornless animals, or in some areas also for those that have been disbudded or dehorned.
Cattle raised for human consumption are called beef cattle. Within the American beef cattle industry, the older term beef (plural beeves) is still used to refer to an animal of either sex. Some Australian, Canadian, New Zealand and British people use the term beast.
Cattle bred specifically for milk production are called milking or dairy cattle; a cow kept to provide milk for one family may be called a house cow or milker. A fresh cow is a dairy term for a cow or first-calf heifer who has recently given birth, or "freshened."
The adjective applying to cattle in general is usually bovine. The terms bull, cow and calf are also used by extension to denote the sex or age of other large animals, including whales, hippopotamuses, camels, elk and elephants.
Various other terms for cattle or types thereof are historical; these include nowt, nolt, mart, and others.
Singular terminology issue
"Cattle" can only be used in the plural and not in the singular: it is a plurale tantum. Thus one may refer to "three cattle" or "some cattle", but not "one cattle". "One head of cattle" is a valid though periphrastic way to refer to one animal of indeterminate or unknown age and sex; otherwise no universally used single-word singular form of cattle exists in modern English, other than the sex- and age-specific terms such as cow, bull, steer and heifer. Historically, "ox" was not a sex-specific term for adult cattle, but generally this is now used only for working cattle, especially adult castrated males. The term is also incorporated into the names of other species, such as the musk ox and "grunting ox" (yak), and is used in some areas to describe certain cattle products such as ox-hide and oxtail.Cow is in general use as a singular for the collective cattle. The word cow is easy to use when a singular is needed and the sex is unknown or irrelevant—when "there is a cow in the road", for example. Further, any herd of fully mature cattle in or near a pasture is statistically likely to consist mostly of cows, so the term is probably accurate even in the restrictive sense. Other than the few bulls needed for breeding, the vast majority of male cattle are castrated as calves and are used as oxen or slaughtered for meat before the age of three years. Thus, in a pastured herd, any calves or herd bulls usually are clearly distinguishable from the cows due to distinctively different sizes and clear anatomical differences. Merriam-Webster and Oxford Living Dictionaries recognize the sex-nonspecific use of cow as an alternate definition, whereas Collins and the OED do not.
Colloquially, more general nonspecific terms may denote cattle when a singular form is needed. Head of cattle is usually used only after a numeral. Australian, New Zealand and British farmers use the term beast or cattle beast. Bovine is also used in Britain. The term critter is common in the western United States and Canada, particularly when referring to young cattle. In some areas of the American South (particularly the Appalachian region), where both dairy and beef cattle are present, an individual animal was once called a "beef critter", though that term is becoming archaic.
Other terminology
Cattle raised for human consumption are called beef cattle. Within the beef cattle industry in parts of the United States, the term beef (plural beeves) is still used in its archaic sense to refer to an animal of either sex. Cows of certain breeds that are kept for the milk they give are called dairy cows or milking cows (formerly milch cows). Most young male offspring of dairy cows are sold for veal, and may be referred to as veal calves.
The term dogies is used to describe orphaned calves in the context of ranch work in the American West, as in "Keep them dogies moving". In some places, a cow kept to provide milk for one family is called a "house cow". Other obsolete terms for cattle include "neat" (this use survives in "neatsfoot oil", extracted from the feet and legs of cattle), and "beefing" (young animal fit for slaughter).
An onomatopoeic term for one of the most common sounds made by cattle is moo (also called lowing). There are a number of other sounds made by cattle, including calves bawling, and bulls bellowing. Bawling is most common for cows after weaning of a calf. The bullroarer makes a sound similar to a bull's territorial call.
Characteristics
Anatomy
Cattle are large quadrupedal ungulate mammals with cloven hooves. Most breeds have horns, which can be as large as the Texas Longhorn or small like a scur. Careful genetic selection has allowed polled (hornless) cattle to become widespread.
Digestive system
Cattle are ruminants, meaning their digestive system is highly specialized to allow the consumption of difficult to digest plants as food. Cattle have one stomach with four compartments, the rumen, reticulum, omasum, and abomasum, with the rumen being the largest compartment.
The reticulum, the smallest compartment, is known as the "honeycomb". The omasum's main function is to absorb water and nutrients from the digestible feed. The omasum is known as the "many plies". The abomasum is like the human stomach; this is why it is known as the "true stomach".
Cattle are known for regurgitating and re-chewing their food, known as cud chewing, like most ruminants. While the animal is feeding, the food is swallowed without being chewed and goes into the rumen for storage until the animal can find a quiet place to continue the digestion process. The food is regurgitated, a mouthful at a time, back up to the mouth, where the food, now called the cud, is chewed by the molars, grinding down the coarse vegetation to small particles. The cud is then swallowed again and further digested by specialized microorganisms in the rumen. These microbes are primarily responsible for decomposing cellulose and other carbohydrates into volatile fatty acids cattle use as their primary metabolic fuel. The microbes inside the rumen also synthesize amino acids from non-protein nitrogenous sources, such as urea and ammonia. As these microbes reproduce in the rumen, older generations die and their cells continue on through the digestive tract. These cells are then partially digested in the small intestines, allowing cattle to gain a high-quality protein source. These features allow cattle to thrive on grasses and other tough vegetation.
Reproduction
On farms it is very common to use artificial insemination (AI), a medically assisted reproduction technique consisting of the artificial deposition of semen in the female's genital tract. It is used in cases where the spermatozoa can not reach the fallopian tubes or by choice of the owner of the animal. It consists of transferring, to the uterine cavity, spermatozoa previously collected and processed, with the selection of morphologically more normal and mobile spermatozoa. Synchronization of cattle ovulation to benefit dairy farming may be accomplished via induced ovulation techniques.
Bulls become fertile at about seven months of age. Their fertility is closely related to the size of their testicles, and one simple test of fertility is to measure the circumference of the scrotum: a young bull is likely to be fertile once this reaches 28 centimetres (11 in); that of a fully adult bull may be over 40 centimetres (16 in).A bull has a fibro-elastic penis. Given the small amount of erectile tissue, there is little enlargement after erection. The penis is quite rigid when non-erect, and becomes even more rigid during erection. Protrusion is not affected much by erection, but more by relaxation of the retractor penis muscle and straightening of the sigmoid flexure.The gestation period for a cow is about nine months long. The secondary sex ratio – the ratio of male to female offspring at birth – is approximately 52:48, although it may be influenced by environmental and other factors. A cow's udder contains two pairs of mammary glands, (commonly referred to as teats) creating four "quarters". The front ones are referred to as fore quarters and the rear ones rear quarters.
Weight and lifespan
The weight of adult cattle varies, depending on the breed. Smaller kinds, such as Dexter and Jersey adults, range between 300 and 500 kg (600 and 1,000 lb). Large Continental breeds, such as Charolais, Marchigiana, Belgian Blue and Chianina adults range from 640 to 1,100 kg (1,400 to 2,500 lb). British breeds, such as Hereford, Angus, and Shorthorn, mature at 500 to 900 kg (1,000 to 2,000 lb), occasionally higher, particularly with Angus and Hereford. Bulls are larger than cows of the same breed by up to a few hundred kilograms. British Hereford cows weigh 600–800 kg (1,300–1,800 lb); the bulls weigh 1,000–1,200 kg (2,200–2,600 lb). Chianina bulls can weigh up to 1,500 kg (3,300 lb); British bulls, such as Angus and Hereford, can weigh as little as 900 kg (2,000 lb) and as much as 1,400 kg (3,000 lb).The world record for the heaviest bull was 1,740 kg (3,840 lb), a Chianina named Donetto, when he was exhibited at the Arezzo show in 1955. The heaviest steer was eight-year-old 'Old Ben', a Shorthorn/Hereford cross weighing in at 2,140 kg (4,720 lb) in 1910.In the United States, the average weight of beef cattle has steadily increased, especially since the 1970s, requiring the building of new slaughterhouses able to handle larger carcasses. New packing plants in the 1980s stimulated a large increase in cattle weights. Before 1790 beef cattle averaged only 160 kg (350 lb) net; and thereafter weights climbed steadily.A newborn calf's size can vary among breeds, but a typical calf weighs 25 to 45 kg (55 to 99 lb). Adult size and weight vary significantly among breeds and sex. Steers are generally slaughtered before reaching 750 kg (1,650 lb). Breeding stock may be allowed a longer lifespan, occasionally living as long as 25 years. The oldest recorded cow, Big Bertha, died at the age of 48 in 1993.
Cognition
In laboratory studies, young cattle are able to memorize the locations of several food sources and retain this memory for at least 8 hours, although this declined after 12 hours. Fifteen-month-old heifers learn more quickly than adult cows which have had either one or two calvings, but their longer-term memory is less stable. Mature cattle perform well in spatial learning tasks and have a good long-term memory in these tests. Cattle tested in a radial arm maze are able to remember the locations of high-quality food for at least 30 days. Although they initially learn to avoid low-quality food, this memory diminishes over the same duration. Under less artificial testing conditions, young cattle showed they were able to remember the location of feed for at least 48 days. Cattle can make an association between a visual stimulus and food within 1 day—memory of this association can be retained for 1 year, despite a slight decay.Calves are capable of discrimination learning and adult cattle compare favourably with small mammals in their learning ability in the closed-field test.They are also able to discriminate between familiar individuals, and among humans. Cattle can tell the difference between familiar and unfamiliar animals of the same species (conspecifics). Studies show they behave less aggressively toward familiar individuals when they are forming a new group. Calves can also discriminate between humans based on previous experience, as shown by approaching those who handled them positively and avoiding those who handled them aversively. Although cattle can discriminate between humans by their faces alone, they also use other cues such as the color of clothes when these are available.In audio play-back studies, calves prefer their own mother's vocalizations compared to the vocalizations of an unfamiliar mother.In laboratory studies using images, cattle can discriminate between images of the heads of cattle and other animal species. They are also able to distinguish between familiar and unfamiliar conspecifics. Furthermore, they are able to categorize images as familiar and unfamiliar individuals.When mixed with other individuals, cloned calves from the same donor form subgroups, indicating that kin discrimination occurs and may be a basis of grouping behaviour. It has also been shown using images of cattle that both artificially inseminated and cloned calves have similar cognitive capacities of kin and non-kin discrimination.Cattle can recognize familiar individuals. Visual individual recognition is a more complex mental process than visual discrimination. It requires the recollection of the learned idiosyncratic identity of an individual that has been previously encountered and the formation of a mental representation. By using two-dimensional images of the heads of one cow (face, profiles, 3⁄4 views), all the tested heifers showed individual recognition of familiar and unfamiliar individuals from their own breed. Furthermore, almost all the heifers recognized unknown individuals from different breeds, although this was achieved with greater difficulty. Individual recognition was most difficult when the visual features of the breed being tested were quite different from the breed in the image, for example, the breed being tested had no spots whereas the image was of a spotted breed.Cattle use visual/brain lateralisation in their visual scanning of novel and familiar stimuli. Domestic cattle prefer to view novel stimuli with the left eye, i.e. using the right brain hemisphere (similar to horses, Australian magpies, chicks, toads and fish) but use the right eye, i.e. using the left hemisphere, for viewing familiar stimuli.
Senses
Cattle use all of the five widely recognized sensory modalities. These can assist in some complex behavioural patterns, for example, in grazing behaviour. Cattle eat mixed diets, but when given the opportunity, show a partial preference of approximately 70% clover and 30% grass. This preference has a diurnal pattern, with a stronger preference for clover in the morning, and the proportion of grass increasing towards the evening.
Vision
Vision is the dominant sense in cattle and they obtain almost 50% of their information visually.
Cattle are a prey animal and to assist predator detection, their eyes are located on the sides of their head rather than the front. This gives them a wide field of view of 330° but limits binocular vision (and therefore stereopsis) to 30° to 50° compared to 140° in humans. This means they have a blind spot directly behind them. Cattle have good visual acuity, but compared to humans, their visual accommodation is poor.Cattle have two kinds of color receptors in the cone cells of their retinas. This means that cattle are dichromatic, as are most other non-primate land mammals. There are two to three rods per cone in the fovea centralis but five to six near the optic papilla. Cattle can distinguish long wavelength colors (yellow, orange and red) much better than the shorter wavelengths (blue, grey and green). Calves are able to discriminate between long (red) and short (blue) or medium (green) wavelengths, but have limited ability to discriminate between the short and medium. They also approach handlers more quickly under red light. Whilst having good color sensitivity, it is not as good as humans or sheep.A common misconception about cattle (particularly bulls) is that they are enraged by the color red (something provocative is often said to be "like a red flag to a bull"). This is a myth. In bullfighting, it is the movement of the red flag or cape that irritates the bull and incites it to charge.
Taste
Cattle have a well-developed sense of taste and can distinguish the four primary tastes (sweet, salty, bitter and sour). They possess around 20,000 taste buds. The strength of taste perception depends on the individual's current food requirements. They avoid bitter-tasting foods (potentially toxic) and have a marked preference for sweet (high calorific value) and salty foods (electrolyte balance). Their sensitivity to sour-tasting foods helps them to maintain optimal ruminal pH.Plants have low levels of sodium and cattle have developed the capacity of seeking salt by taste and smell. If cattle become depleted of sodium salts, they show increased locomotion directed to searching for these. To assist in their search, the olfactory and gustatory receptors able to detect minute amounts of sodium salts increase their sensitivity as biochemical disruption develops with sodium salt depletion.
Hearing
Cattle hearing ranges from 23 Hz to 35 kHz. Their frequency of best sensitivity is 8 kHz and they have a lowest threshold of −21 db (re 20 μN/m−2), which means their hearing is more acute than horses (lowest threshold of 7 db). Sound localization acuity thresholds are an average of 30°. This means that cattle are less able to localise sounds compared to goats (18°), dogs (8°) and humans (0.8°). Because cattle have a broad foveal fields of view covering almost the entire horizon, they may not need very accurate locus information from their auditory systems to direct their gaze to a sound source.
Vocalizations are an important mode of communication amongst cattle and can provide information on the age, sex, dominance status and reproductive status of the caller. Calves can recognize their mothers using vocalizations; vocal behaviour may play a role by indicating estrus and competitive display by bulls.
Olfaction and gustation
Cattle have a range of odoriferous glands over their body including interdigital, infraorbital, inguinal and sebaceous glands, indicating that olfaction probably plays a large role in their social life. Both the primary olfactory system using the olfactory bulbs, and the secondary olfactory system using the vomeronasal organ are used. This latter olfactory system is used in the flehmen response. There is evidence that when cattle are stressed, this can be recognised by other cattle and this is communicated by alarm substances in the urine. The odour of dog faeces induces behavioural changes prior to cattle feeding, whereas the odours of urine from either stressed or non-stressed conspecifics and blood have no effect.In the laboratory, cattle can be trained to recognise conspecific individuals using olfaction only.In general, cattle use their sense of smell to "expand" on information detected by other sensory modalities. However, in the case of social and reproductive behaviours, olfaction is a key source of information.
Touch
Cattle have tactile sensations detected mainly by mechanoreceptors, thermoreceptors and nociceptors in the skin and muscles. These are used most frequently when cattle explore their environment.
Magnetoreception
There is conflicting evidence for magnetoreception in cattle. One study reported that resting and grazing cattle tend to align their body axes in the geomagnetic north–south direction. In a follow-up study, cattle exposed to various magnetic fields directly beneath or in the vicinity of power lines trending in various magnetic directions exhibited distinct patterns of alignment. However, in 2011, a group of Czech researchers reported their failed attempt to replicate the finding using Google Earth images.
Behavior
Under natural conditions, calves stay with their mother until weaning at 8 to 11 months. Heifer and bull calves are equally attached to their mothers in the first few months of life. Cattle are considered to be "hider" type animals, utilizing secluded areas more in the hours before calving and continued to use it more for the hour after calving. Cows that gave birth for the first time show a higher incidence of abnormal maternal behavior.
In one study, beef-calves reared on the range were observed to suckle an average of 5.0 times every 24 hours with an average total time of 46 min spent suckling. There was a diurnal rhythm in suckling activity with peaks between 05:00–07:00, 10:00–13:00 and 17:00–21:00.
Reproductive behavior
Semi-wild Highland cattle heifers first give birth at 2 or 3 years of age, and the timing of birth is synchronized with increases in natural food quality. Average calving interval is 391 days, and calving mortality within the first year of life is 5%.
Dominance and leadership
One study showed that over a 4-year period, dominance relationships within a herd of semi-wild highland cattle were very firm. There were few overt aggressive conflicts and the majority of disputes were settled by agonistic (non-aggressive, competitive) behaviors that involved no physical contact between opponents (e.g. threatening and spontaneous withdrawing). Such agonistic behavior reduces the risk of injury. Dominance status depended on age and sex, with older animals generally being dominant to young ones and males dominant to females. Young bulls gained superior dominance status over adult cows when they reached about 2 years of age.As with many animal dominance hierarchies, dominance-associated aggressiveness does not correlate with rank position, but is closely related to rank distance between individuals.Dominance is maintained in several ways. Cattle often engage in mock fights where they test each other's strength in a non-aggressive way. Licking is primarily performed by subordinates and received by dominant animals. Mounting is a playful behavior shown by calves of both sexes and by bulls and sometimes by cows in estrus, however, this is not a dominance related behavior as has been found in other species.The horns of cattle are "honest signals" used in mate selection. Furthermore, horned cattle attempt to keep greater distances between themselves and have fewer physical interactions than hornless cattle. This leads to more stable social relationships.In calves, the frequency of agonistic behavior decreases as space allowance increases, but this does not occur for changes in group size. However, in adult cattle, the number of agonistic encounters increases as the group size increases.
Grazing behavior
When grazing, cattle vary several aspects of their bite, i.e. tongue and jaw movements, depending on characteristics of the plant they are eating. Bite area decreases with the density of the plants but increases with their height. Bite area is determined by the sweep of the tongue; in one study observing 750-kilogram (1,650 lb) steers, bite area reached a maximum of approximately 170 cm2 (30 sq in). Bite depth increases with the height of the plants. By adjusting their behavior, cattle obtain heavier bites in swards that are tall and sparse compared with short, dense swards of equal mass/area. Cattle adjust other aspects of their grazing behavior in relation to the available food; foraging velocity decreases and intake rate increases in areas of abundant palatable forage.Cattle avoid grazing areas contaminated by the faeces of other cattle more strongly than they avoid areas contaminated by sheep, but they do not avoid pasture contaminated by rabbit faeces.
Temperament and emotions
In cattle, temperament can affect production traits such as carcass and meat quality or milk yield as well as affecting the animal's overall health and reproduction. Cattle temperament is defined as "the consistent behavioral and physiological difference observed between individuals in response to a stressor or environmental challenge and is used to describe the relatively stable difference in the behavioral predisposition of an animal, which can be related to psychobiological mechanisms". Generally, cattle temperament is assumed to be multidimensional. Five underlying categories of temperament traits have been proposed:
shyness–boldness
exploration–avoidance
activity
aggressiveness
sociabilityIn a study on Holstein–Friesian heifers learning to press a panel to open a gate for access to a food reward, the researchers also recorded the heart rate and behavior of the heifers when moving along the race towards the food. When the heifers made clear improvements in learning, they had higher heart rates and tended to move more vigorously along the race. The researchers concluded this was an indication that cattle may react emotionally to their own learning improvement.Negative emotional states are associated with a bias toward negative responses towards ambiguous cues in judgement tasks. After separation from their mothers, Holstein calves showed such a cognitive bias indicative of low mood. A similar study showed that after hot-iron disbudding (dehorning), calves had a similar negative bias indicating that post-operative pain following this routine procedure results in a negative change in emotional state.In studies of visual discrimination, the position of the ears has been used as an indicator of emotional state. When cattle are stressed other cattle can tell by the chemicals released in their urine.Cattle are very gregarious and even short-term isolation is considered to cause severe psychological stress. When Aubrac and Friesian heifers are isolated, they increase their vocalizations and experience increased heart rate and plasma cortisol concentrations. These physiological changes are greater in Aubracs. When visual contact is re-instated, vocalizations rapidly decline, regardless of the familiarity of the returning cattle, however, heart rate decreases are greater if the returning cattle are familiar to the previously isolated individual. Mirrors have been used to reduce stress in isolated cattle.
Sleep
The average sleep time of a domestic cow is about 4 hours a day. Cattle do have a stay apparatus, but do not sleep standing up; they lie down to sleep deeply. In spite of the urban legend, cows cannot be tipped over by people pushing on them.
Genetics
On 24 April 2009, edition of the journal Science, a team of researchers led by the National Institutes of Health and the US Department of Agriculture reported having mapped the bovine genome. The scientists found cattle have about 22,000 genes, and 80% of their genes are shared with humans, and they share about 1000 genes with dogs and rodents, but are not found in humans. Using this bovine "HapMap", researchers can track the differences between the breeds that affect the quality of meat and milk yields.Behavioral traits of cattle can be as heritable as some production traits, and often, the two can be related. The heritability of fear varies markedly in cattle from low (0.1) to high (0.53); such high variation is also found in pigs and sheep, probably due to differences in the methods used. The heritability of temperament (response to isolation during handling) has been calculated as 0.36 and 0.46 for habituation to handling. Rangeland assessments show that the heritability of aggressiveness in cattle is around 0.36.Quantitative trait loci (QTLs) have been found for a range of production and behavioral characteristics for both dairy and beef cattle.
Domestication and husbandry
Cattle occupy a unique role in human history, having been domesticated since at least the early neolithic age.
Archaeozoological and genetic data indicate that cattle were first domesticated from wild aurochs (Bos primigenius) approximately 10,500 years ago. There were two major areas of domestication: one in the Near East (specifically central Anatolia, the Levant and Western Iran), giving rise to the taurine line, and a second in the area that is now Pakistan, resulting in the indicine line. Modern mitochondrial DNA variation indicates the taurine line may have arisen from as few as 80 aurochs tamed in the upper reaches of Mesopotamia near the villages of Çayönü Tepesi in what is now southeastern Turkey and Dja'de el-Mughara in what is now northern Syria.Although European cattle are largely descended from the taurine lineage, gene flow from African cattle (partially of indicine origin) contributed substantial genomic components to both southern European cattle breeds and their New World descendants. A study on 134 breeds showed that modern taurine cattle originated from Africa, Asia, North and South America, Australia, and Europe. Some researchers have suggested that African taurine cattle are derived from a third independent domestication from North African aurochsen.
Usage as money
As early as 9000 BC both grain and cattle were used as money or as barter (the first grain remains found, considered to be evidence of pre-agricultural practice date to 17,000 BC). Some evidence also exists to suggest that other animals, such as camels and goats, may have been used as currency in some parts of the world. One of the advantages of using cattle as currency is that it allows the seller to set a fixed price. It even created the standard pricing. For example, two chickens were traded for one cow as cows were deemed to be more valuable than chickens.
Modern husbandry
Cattle are often raised by allowing herds to graze on the grasses of large tracts of rangeland. Raising cattle in this manner allows the use of land that might be unsuitable for growing crops. The most common interactions with cattle involve daily feeding, cleaning and milking. Many routine husbandry practices involve ear tagging, dehorning, loading, medical operations, artificial insemination, vaccinations and hoof care, as well as training for agricultural shows and preparations. Also, some cultural differences occur in working with cattle; the cattle husbandry of Fulani men rests on behavioural techniques, whereas in Europe, cattle are controlled primarily by physical means, such as fences. Breeders use cattle husbandry to reduce M. bovis infection susceptibility by selective breeding and maintaining herd health to avoid concurrent disease.Cattle are farmed for beef, veal, dairy, and leather. They are less commonly used for conservation grazing, or to maintain grassland for wildlife, such as in Epping Forest, England. They are often used in some of the most wild places for livestock. Depending on the breed, cattle can survive on hill grazing, heaths, marshes, moors and semidesert. Modern cattle are more commercial than older breeds and, having become more specialized, are less versatile. For this reason, many smaller farmers still favor old breeds, such as the Jersey dairy breed.
In Portugal, Spain, southern France and some Latin American countries, bulls are used in the activity of bullfighting; In many other countries bullfighting is illegal. Other activities such as bull riding are seen as part of a rodeo, especially in North America. Bull-leaping, a central ritual in Bronze Age Minoan culture (see Sacred Bull), still exists in southwestern France. In modern times, cattle are also entered into agricultural competitions. These competitions can involve live cattle or cattle carcases in hoof and hook events.In terms of food intake by humans, consumption of cattle is less efficient than of grain or vegetables with regard to land use, and hence cattle grazing consumes more area than such other agricultural production when raised on grains. Nonetheless, cattle and other forms of domesticated animals can sometimes help to use plant resources in areas not easily amenable to other forms of agriculture.
Feral cattle
Feral cattle are defined as being 'cattle that are not domesticated or cultivated'. Populations of feral cattle are known to come from and exist in: Australia, United States of America, Colombia, Argentina, Spain, France and many islands, including New Guinea, Hawaii (see Hawaiian wild cattle), Galapagos, Juan Fernández Islands, Hispaniola (Dominican Republic and Haiti), Tristan da Cunha and Île Amsterdam (see Amsterdam Island cattle), two islands of Kuchinoshima and Kazura Island next to Naru Island in Japan. Chillingham cattle is sometimes regarded as a feral breed. Aleutian wild cattles can be found on the Aleutian Islands. The "Kinmen cattle" which are predominantly found on Kinmen Island, Taiwan is mostly domesticated while smaller portion of the population is believed to live in the wild due to accidental releases.Other notable examples include cattle in the vicinity of Hong Kong (in the Shing Mun Country Park, among Sai Kung District and Lantau Island and on Grass Island), and semi-feral animals in Yangmingshan, Taiwan.
Economy
The meat of adult cattle is known as beef, and that of calves is veal. Other animal parts are also used as food products, including blood, liver, kidney, heart and oxtail. Cattle also produce milk, and dairy cattle are specifically bred to produce the large quantities of milk processed and sold for human consumption. Cattle today are the basis of a multibillion-dollar industry worldwide. The international trade in beef for 2000 was over $30 billion and represented only 23% of world beef production. Approximately 300 million cattle, including dairy cattle, are slaughtered each year for food. The production of milk, which is also made into cheese, butter, yogurt, and other dairy products, is comparable in economic size to beef production, and provides an important part of the food supply for many of the world's people. Cattle hides, used for leather to make shoes, couches and clothing, are another widespread product. Cattle remain broadly used as draft animals in many developing countries, such as India. Cattle are also used in some sporting games, including rodeo and bullfighting.
Meat production
Source: Helgi Library, World Bank, FAOSTAT
About a quarter of the world's meat comes from cattle.
Dairy
Certain breeds of cattle, such as the Holstein-Friesian, are used to produce milk, which can be processed into dairy products such as milk, cheese or yogurt. Dairy cattle are usually kept on specialized dairy farms designed for milk production. Most cows are milked twice per day, with milk processed at a dairy, which may be onsite at the farm or the milk may be shipped to a dairy plant for eventual sale of a dairy product. Lactation is induced in heifers and spayed cows by a combination of physical and psychological stimulation, by drugs, or by a combination of those methods. For mother cows to continue producing milk, they give birth to one calf per year. If the calf is male, it generally is slaughtered at a young age to produce veal. They will continue to produce milk until three weeks before birth. Over the last fifty years, dairy farming has become more intensive to increase the yield of milk produced by each cow. The Holstein-Friesian is the breed of dairy cow most common in the UK, Europe and the United States. It has been bred selectively to produce the highest yields of milk of any cow. Around 22 litres per day is average in the UK.
Hides
Most cattle are not kept solely for hides, which are usually a by-product of beef production. Hides are most commonly used for leather, which can be made into a variety of products, including shoes. In 2012 India was the world's largest producer of cattle hides.
Oxen
Oxen (singular ox) are cattle trained as draft animals. Often they are adult, castrated males of larger breeds, although females and bulls are also used in some areas. Usually, an ox is over four years old due to the need for training and to allow it to grow to full size. Oxen are used for plowing, transport, hauling cargo, grain-grinding by trampling or by powering machines, irrigation by powering pumps, and wagon drawing. Oxen were commonly used to skid logs in forests, and sometimes still are, in low-impact, select-cut logging. Oxen are most often used in teams of two, paired, for light work such as carting, with additional pairs added when more power is required, sometimes up to a total of 20 or more.
Oxen can be trained to respond to a teamster's signals. These signals are given by verbal commands or by noise (whip cracks). Verbal commands vary according to dialect and local tradition. Oxen can pull harder and longer than horses. Though not as fast as horses, they are less prone to injury because they are more sure-footed.
Many oxen are used worldwide, especially in developing countries. About 11.3 million draft oxen are used in sub-Saharan Africa. In India, the number of draft cattle in 1998 was estimated at 65.7 million head. About half the world's crop production is thought to depend on land preparation (such as plowing) made possible by animal traction.
Climate change and economics of cattle rearing
Climate change increases heat stress, and even mild heat stress can reduce the yield of cow milk. Some researchers suggest that the already recorded stagnation of dairy production in both China and West Africa can attributed to persistent increases in heat stress.: 747 In China, daily milk production per cow is already lower than the average by between 0.7 and 4 kg in July (the hottest month of the year), and by 2070, it may decline by up to 50% (or 7.2 kg) due to climate change. In male cattle, severe heat can affect both spermatogenesis and the stored spermatozoa, and it may take up to eight weeks for sperm to become viable again. In females, heat stress negatively affects conception rates as it impairs corpus luteum and thus ovarian function and oocyte quality. Even after conception, a pregnancy is less likely to be carried to term due to reduced endometrial function and uterine blood flow, leading to increased embryonic mortality and early fetal loss. Calves born to heat-stressed cows typically have a below-average weight, and their weight and height remains below average even by the time they reach their first year, due to permanent changes in their metabolism. Heat stress can also be outright lethal, which is already seen during some heatwaves: in July 1995, over 4000 cattle perished in the mid-central United States heatwave, and in 1999, over 5000 cattle died during a heatwave in northeastern Nebraska.By 2017, it was already reported that farmers in Nepal kept fewer cattle due to the losses imposed by a longer hot season.: 747 As of 2022, it has been suggested that every additional millimeter of annual precipitation increases beef production by 2.1% in the tropical countries and reduces it by 1.9% in temperate ones, yet the effects of warming are much larger. Under SSP3-7.0, a scenario of significant warming and very low adaptation, every additional 1 °C (1.8 °F) would decrease global beef production by 9.7%, mainly because of its impact on tropical and poor countries. In the countries which can afford adaptation measures, production would fall by around 4%, but by 27% in those which can't. Only a few exceptions have been identified to date: for instance, east and south of Argentina may become more suitable to cattle ranching due to climate-driven shifts in rainfall, but a shift to Zebu breeds would likely be needed to minimize the impact of warming. Other studies suggest that Brahman cattle and its cross-breeds are more resistant to heat stress than the regular bos taurus breeds, but on a global scale, it is considered unlikely that even more heat-resistant cattle can be bred at a sufficient rate to keep up with the expected warming.
Population
The cattle population of Britain rose from 9.8 million in 1878 to 11.7 million in 1908, but beef consumption rose much faster. Britain became the "stud farm of the world" exporting livestock to countries where there were no indigenous cattle. In 1929 80% of the meat trade of the world was products of what were originally English breeds. There were nearly 70 million cattle in the US by the early 1930s.For 2013, the FAO estimated global cattle numbers at 1.47 billion. Regionally, the FAO estimate for 2013 includes: Asia 497 million; South America 350 million; Africa 307 million; Europe 122 million; North America 102 million; Central America 47 million; Oceania 40 million; and Caribbean 9 million.
As per FAS/USDA 2021 data, India had the largest cattle population in the world in 2021 followed by Brazil and ChinaIndia's cattle's population was reported at 305.5 million head in 2021, accounting for roughly 30% of the world's population.
India, Brazil and China accounted for roughly 65% of the world's cattle population in 2021.
It has been estimated that out of all animal species on Earth, Bos taurus has the largest biomass at roughly 400 million tonnes, followed closely by Euphausia superba (Antarctic krill) at 379 million tonnes, and Homo sapiens (humans) at 373 million tonnes.
Environmental impact
Gut flora in cattle include methanogens that produce methane as a byproduct of enteric fermentation, which cattle belch out. The same volume of atmospheric methane has a 72x higher (over 20 years) global warming potential than atmospheric carbon dioxide. Methane belching from cattle can be reduced with genetic selection, immunization against the many methanogens, rumen defaunation (killing the bacteria-killing protozoa), diet modification (e.g. seaweed fortification), decreased antibiotic use, and grazing management, among others.A 2013 report from the Food and Agriculture Organization (FAO) based on 2005 data states that the livestock sector is responsible for 14.5% of greenhouse gas emissions, 65% of which is due to cattle. The IPCC estimates that cattle and other livestock emit about 80 to 93 Megatonnes of methane per year, accounting for an estimated 37% of anthropogenic methane emissions, and additional methane is produced by anaerobic fermentation of manure in manure lagoons and other manure storage structures. Another estimate is 12% of global GHG. While cattle fed forage actually produce more methane than grain-fed cattle, the increase may be offset by the increased carbon recapture of pastures, which recapture three times the CO2 of cropland used for grain.
One of the cited changes suggested to reduce greenhouse gas emissions is intensification of the livestock industry, since intensification leads to less land for a given level of production. This assertion is supported by studies of the US beef production system, suggesting practices prevailing in 2007 involved 8.6% less fossil fuel use, 16.3% less greenhouse gas emissions, 12.1% less water use, and 33.0% less land use, per unit mass of beef produced, than those used in 1977. The analysis took into account not only practices in feedlots, but also feed production (with less feed needed in more intensive production systems), forage-based cow-calf operations and back-grounding before cattle enter a feedlot (with more beef produced per head of cattle from those sources, in more intensive systems), and beef from animals derived from the dairy industry. A more controversial suggestion, advocated by George Monbiot in the documentary "Apocalypse Cow", is to stop farming cattle completely, however farmers often have political power so might be able to resist such a big change.
Significant numbers of dairy, as well as beef cattle, are confined in concentrated animal feeding operations (CAFOs), defined as "new and existing operations which stable or confine and feed or maintain for a total of 45 days or more in any 12-month period more than the number of animals specified" where "[c]rops, vegetation, forage growth, or post-harvest residues are not sustained in the normal growing season over any portion of the lot or facility." They may be designated as small, medium and large. Such designation of cattle CAFOs is according to cattle type (mature dairy cows, veal calves or other) and cattle numbers, but medium CAFOs are so designated only if they meet certain discharge criteria, and small CAFOs are designated only on a case-by-case basis.
A CAFO that discharges pollutants is required to obtain a permit, which requires a plan to manage nutrient runoff, manure, chemicals, contaminants, and other wastewater pursuant to the US Clean Water Act. The regulations involving CAFO permitting have been extensively litigated.Commonly, CAFO wastewater and manure nutrients are applied to land at agronomic rates for use by forages or crops, and it is often assumed that various constituents of wastewater and manure, e.g. organic contaminants and pathogens, will be retained, inactivated or degraded on the land with application at such rates; however, additional evidence is needed to test reliability of such assumptions
. Concerns raised by opponents of CAFOs have included risks of contaminated water due to feedlot runoff, soil erosion, human and animal exposure to toxic chemicals, development of antibiotic resistant bacteria and an increase in E. coli contamination. While research suggests some of these impacts can be mitigated by developing wastewater treatment systems and planting cover crops in larger setback zones, the Union of Concerned Scientists released a report in 2008 concluding that CAFOs are generally unsustainable and externalize costs.Another concern is manure, which if not well-managed, can lead to adverse environmental consequences. However, manure also is a valuable source of nutrients and organic matter when used as a fertilizer. Manure was used as a fertilizer on about 6,400,000 hectares (15.8 million acres) of US cropland in 2006, with manure from cattle accounting for nearly 70% of manure applications to soybeans and about 80% or more of manure applications to corn, wheat, barley, oats and sorghum. Substitution of manure for synthetic fertilizers in crop production can be environmentally significant, as between 43 and 88 megajoules of fossil fuel energy would be used per kg of nitrogen in manufacture of synthetic nitrogenous fertilizers.Grazing by cattle at low intensities can create a favourable environment for native herbs and forbs by mimicking the native grazers who they displaced; in many world regions, though, cattle are reducing biodiversity due to overgrazing. A survey of refuge managers on 123 National Wildlife Refuges in the US tallied 86 species of wildlife considered positively affected and 82 considered negatively affected by refuge cattle grazing or haying. Proper management of pastures, notably managed intensive rotational grazing and grazing at low intensities can lead to less use of fossil fuel energy, increased recapture of carbon dioxide, fewer ammonia emissions into the atmosphere, reduced soil erosion, better air quality, and less water pollution.
Health
The veterinary discipline dealing with cattle and cattle diseases (bovine veterinary) is called buiatrics. Veterinarians and professionals working on cattle health issues are pooled in the World Association for Buiatrics, founded in 1960. National associations and affiliates also exist.Digital dermatitis is caused by the bacteria from the genus Treponema. It differs from foot rot and can appear under unsanitary conditions such as poor hygiene or inadequate hoof trimming, among other causes. It primarily affects dairy cattle and has been known to lower the quantity of milk produced, however the milk quality remains unaffected. Cattle are also susceptible to ringworm caused by the fungus, Trichophyton verrucosum, a contagious skin disease which may be transferred to humans exposed to infected cows.
Public health
Cattle diseases were in the center of attention in the 1980s and 1990s when the Bovine spongiform encephalopathy (BSE), also known as mad cow disease, was of concern. Cattle might catch and develop various other diseases, like blackleg, bluetongue, foot rot too.In most states, as cattle health is not only a veterinarian issue, but also a public health issue, public health and food safety standards and farming regulations directly affect the daily work of farmers who keep cattle. However, said rules change frequently and are often debated. For instance, in the UK, it was proposed in 2011 that milk from tuberculosis-infected cattle should be allowed to enter the food chain. Internal food safety regulations might affect a country's trade policy as well. For example, the United States has just reviewed its beef import rules according to the "mad cow standards"; while Mexico forbids the entry of cattle who are older than 30 months.
Medicinal uses
Cow urine is commonly used in India for internal medical purposes. It is distilled and then consumed by patients seeking treatment for a wide variety of illnesses. At present, no conclusive medical evidence shows this has any effect. However, an Indian medicine containing cow urine has already obtained U.S. patents.
Effect of high stocking density
Stocking density refers to the number of animals within a specified area. When stocking density reaches high levels, the behavioural needs of the animals may not be met. This can negatively influence health, welfare and production performance.The effect of overstocking in cows can have a negative effect on milk production and reproduction rates which are two very important traits for dairy farmers. Overcrowding of cows in barns has been found to reduced feeding, resting and rumination. Although they consume the same amount of dry matter within the span of a day, they consume the food at a much more rapid rate, and this behaviour in cows can lead to further complications. The feeding behaviour of cows during their post-milking period is very important as it has been proven that the longer animals can eat after milking, the longer they will be standing up and therefore causing less contamination to the teat ends. This is necessary to reduce the risk of mastitis as infection has been shown to increase the chances of embryonic loss. Sufficient rest is important for dairy cows because it is during this period that their resting blood flow increases up to 50%, this is directly proportionate to milk production. Each additional hour of rest can be seen to translate to 2 to 3.5 more pounds of milk per cow daily. Stocking densities of anything over 120% have been shown to decrease the amount of time cows spend lying down.Cortisol is an important stress hormone; its plasma concentrations increase greatly when subjected to high levels of stress. Increased concentration levels of cortisol have been associated with significant increases in gonadotrophin levels and lowered progestin levels. Reduction of stress is important in the reproductive state of cows as an increase in gonadotrophin and lowered progesterone levels may impinge on the ovulatory and lutenization process and to reduce the chances of successful implantation. A high cortisol level will also stimulate the degradation of fats and proteins which may make it difficult for the animal to sustain its pregnancy if implanted successfully.
Animal welfare concerns
Animal rights activists have criticized the treatment of cattle, claiming that common practices in cattle husbandry, slaughter and entertainment unnecessarily cause fear, stress, and pain. They advocate for abstaining from the consumption of cattle-related animal products and cattle-based entertainment.
Livestock industry
The following husbandry practices have been criticized by animal welfare and animal rights groups: branding, castration, dehorning, ear tagging, nose ringing, restraint, tail docking, the use of veal crates, and cattle prods. There are concerns that the stress and negative health impacts induced by high stocking density such as in concentrated animal feeding operations or feedlots, auctions, and during transport may be detrimental to their welfare, and has also been criticized.The treatment of dairy cows faces additional criticism. To produce milk from dairy cattle, most calves are separated from their mothers soon after birth and fed milk replacement in order to retain the cows' milk for human consumption. Animal welfare advocates are critical of this practice, stating that this breaks the natural bond between the mother and her calf. The welfare of veal calves is also a concern. In order to continue lactation, dairy cows are bred every year, usually through artificial insemination. Because of this, some individuals have posited that dairy production is based on the sexual exploitation of cows. Although the natural life expectancy of cattle could be as much as twenty years, after about five years, a cow's milk production has dropped; at which point most dairy cows are sent to slaughter.
Leather
While leather is often a by-product of slaughter, in some countries, such as India and Bangladesh, cows are raised primarily for their leather. These leather industries often make their cows walk long distances across borders to be killed in neighboring provinces and countries where cattle slaughter is legal. Some cows die along the long journey, and sometimes exhausted animals are abused to keep them moving. These practices have faced backlash from various animal rights groups.
Climate change
Climate change is expected to exacerbate many of the animal welfare issues already faced by cattle. For instance, as of 2020, it was found that in the current Eastern Mediterranean climate, cattle experience mild heat stress inside unadapted stalls for nearly half a year (159 days), while moderate heat stress is felt indoors and outdoors during May, June, July, August, September, and October. Additionally, June and August are the months where cattle are exposed to severe heat stress outside, which is mitigated to moderate heat stress indoors. Heat-stressed cattle have displayed reduced albumin secretion and liver enzyme activity. This is attributed to accelerated breakdown of adipose tissue by the liver, causing lipidosis. Cattle also eat less when they experience acute heat stress during hottest parts of the day, only to compensate when it is cooler, and this disbalance soon causes ruminal acidosis, which can lead to laminitis. Additionally, one of the ways cattle can attempt to deal with higher temperatures is by panting more often, which rapidly decreases carbon dioxide concentrations and increases pH. To avoid respiratory alkalosis, cattle are forced to shed bicarbonate through urination, and this comes at the expense of rumen buffering. These two pathologies can both develop into lameness, defined as "any foot abnormality that causes an animal to change the way that it walks". This effect can occur "weeks to months" after severe heat stress exposure, alongside sore ulcers and white line disease.
Another specific risk is mastitis, normally caused by either an injury to cow's udder, or "immune response to bacterial invasion of the teat canal." Bovine neutrophil function is impaired at higher temperatures, leaving mammary glands more vulnerable to infection, and mastitis is already known to be more prevalent during the summer months, so there's an expectation this would worsen with continued climate change. One of the vectors of bacteria which cause mastitis are Calliphora blowflies, whose numbers are predicted to increase with continued warming, especially in the temperate countries like the United Kingdom. Rhipicephalus microplus, a tick which primarily parasitises cattle, could become established in the currently temperate countries once their autumns and winters become warmer by about 2–2.75 °C (3.60–4.95 °F). On the other hand, the brown stomach worm, Ostertagia ostertagi, is predicted to become much less prevalent in cattle as the warming progresses.
Sport
Animal treatment in rodeo is targeted most often at bull riding but also calf roping and steer roping, with the opposition saying that rodeos are unnecessary and cause stress, injury, and death to the animals. In Spain, the Running of the bulls faces opposition due to the stress and injuries incurred by the bulls during the event. Bullfighting is opposed as a blood sport in which bulls are forced to suffer severe stress and death.
Religion, traditions and folklore
Islamic traditions
The cow is mentioned in the Quran. The second and longest surah of the Quran is named Al-Baqara ("The Cow"). Out of the 286 verses of the surah, seven mention cows (Al Baqarah 67–73). The name of the surah derives from this passage in which Moses orders his people to sacrifice a cow in order to resurrect a man murdered by an unknown person.
Hindu traditions
Veneration of the cow has become a symbol of the identity of Hindus as a community,: 20 especially since the end of the 19th century. Slaughter of cows (including oxen, bulls and calves) is forbidden by law in several states of the Indian Union. McDonald's outlets in India do not serve any beef burgers. In Maharaja Ranjit Singh's empire of the early 19th century, the killing of a cow was punishable by death.
Other traditions
The Evangelist St. Luke is depicted as an ox in Christian art.
In Judaism, as described in Numbers 19:2, the ashes of a sacrificed unblemished red heifer that has never been yoked can be used for ritual purification of people who came into contact with a corpse.
The ox is one of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar. See: Ox (Zodiac).
The constellation Taurus represents a bull.
An apocryphal story has it that a cow started the Great Chicago Fire by kicking over a kerosene lamp. Michael Ahern, the reporter who created the cow story, admitted in 1893 that he had fabricated it for more colorful copy.
On 18 February 1930, Elm Farm Ollie became the first cow to fly in an airplane and also the first cow to be milked in an airplane.
The first known law requiring branding in North America was enacted on 5 February 1644, by Connecticut. It said that all cattle and pigs had to have a registered brand or earmark by 1 May 1644.
The akabeko (赤べこ, red cow) is a traditional toy from the Aizu region of Japan that is thought to ward off illness.
The case of Sherwood v. Walker—involving a supposedly barren heifer that was actually pregnant—first enunciated the concept of mutual mistake as a means of destroying the meeting of the minds in contract law.
The Fulani of West Africa are the world's largest nomadic cattle-herders.
The Maasai tribe of East Africa traditionally believe their god Engai entitled them to divine rights to the ownership of all cattle on earth.
In heraldry
Cattle are typically represented in heraldry by the bull.
See also
References
== Further reading == |
sustainability standards and certification | Sustainability standards and certifications are voluntary guidelines used by producers, manufacturers, traders, retailers, and service providers to demonstrate their commitment to good environmental, social, ethical, and food safety practices. There are over 400 such standards across the world.The trend started in the late 1980s and 1990s with the introduction of Ecolabels and standards for organic food and other products. Most standards refer to the triple bottom line of environmental quality, social equity, and economic prosperity. A standard is normally developed by a broad range of stakeholders and experts in a particular sector and includes a set of practices or criteria for how a crop should be sustainably grown or a resource should be ethically harvested.
This might cover, for instance, responsible fishing practices that do not endanger marine biodiversity or respect for human rights, and the payment of fair wages on a coffee or tea plantation. Normally sustainability standards are accompanied by a verification process – often referred to as "certification" – to evaluate that an enterprise complies with a standard, as well as a traceability process for certified products to be sold along the supply chain, often resulting in a consumer-facing label.
Certification programs also focus on capacity building and working with partners and other organizations to support smallholders or disadvantaged producers to make the social and environmental improvements needed to meet the standard.
The basic premise of sustainability standards is two-fold:
Weak legislation and strong demand for action: Sustainability standards emerged in areas where weak national and global legislation existed but where the consumer and NGO movements around the globe demanded action. For example, campaigns by Global Exchange and other NGOs against the purchase of goods from "sweatshop" factories by companies like Nike, Inc., Levi Strauss & Co., and other leading brands led to the emergence of social welfare standards like the SA8000 and others.
Environmental Merits - Leading brands who sold to both consumers and to the B2B supply chain, and wished to demonstrate the environmental or organic merits of their products led to the emergence of hundreds of eco-labels, organic and other standards.A leading example of a consumer standard is the Fairtrade movement, administered by FLO International and exhibiting huge sales growth around the world for ethically sourced produce. An example of a B2B standard that has grown tremendously in the last few years is the Forest Stewardship Council’s standard (FSC) for forest products made from sustainably harvested trees.
The line between consumer and B2B sustainability standards is becoming blurred, with leading trade buyers increasingly demanding Fairtrade certification, for example, and consumers increasingly recognizing the FSC mark. In recent years, the business-to-business focus of sustainability standards has risen as it has become clear that consumer demand alone cannot drive the transformation of major sectors and industries. In commodities such as palm oil, soy, farmed seafood, and sugar, certification initiatives are targeting the mainstream adoption of better practices and pre-competitive industry collaboration. Major brands and retailers are also starting to make commitments to certification in their whole supply chain or product offering, rather than a single product line or ingredient.The number of Sustainability Standards has continued to grow; currently, there are around 264 active VSS (according to the International Trade Center Standards Map) in 194 countries and 15 sectors, and about 457 ecolabels (according to Ecolabel Index) in 199 countries, and 25 industry sectors.
International and private standards supporting sustainability
Sustainability standards can be categorized as either voluntary consensus standards or private standards. International Organization for Standardization (ISO) is an example of an standards organization who develop international standards following a voluntary consensus process for sustainability under Technical Committee 207, Environmental management and Technical Committee 268, Sustainable cities and communities. These Committees connect with Technical Committee 61, Plastics working on mandates such standards for eliminating plastic pollution. In September 2023, ISO and the United Nations Development Programme (UNDP) signed a Statement of Intent, as a joint commitment to the role of International Standards in addressing sustainability.Many of the international standards developed to help guide sustainability goals and certification schemes originate from the United Nations Food and Agriculture Organization (FAO). The FAO has promulgated several standards for certifying bodies to adhere to. In particular, the FAO has issued guidelines and standards designed to make agriculture, fisheries, and forestry more sustainable.
Some of the sustainability standards were initiated by social movements in particular countries, such as Rainforest Alliance in the United States and Fairtrade certification in the Netherlands. Standards were initiated by individual companies, using private standards, such as Utz Certified (Ahold), C.A.F.E. Practices (Starbucks), and Nespresso AAA (Nespresso).
With the objective of standard harmonization, some standards were launched by coalitions of private firms (also referred to as multistakeholder governance, development agencies, NGOs, and other stakeholders, such as the Marine Stewardship Council, or MSC standard, developed as a collaboration between Unilever and the World Wildlife Fund. For example, the Common Code for the Coffee Community (4C) was initiated by an alliance of large American coffee roasters, including Kraft Foods, Sara Lee, and Nestle, assisted by the German Agency for Technical Cooperation and Development (GIZ).
One important facilitator of the development of most global standards was a series of local development projects involving NGOs, coffee roasters, and producers in different developing countries. For example, the Fairtrade private standard was developed based on pilot projects with Mexican farmers. 4C builds on development projects in Peru, Colombia, and Vietnam, involving GIZ, major coffee roasters, and local producers.The most widely established and adopted standards are in agriculture, with 40% of global coffee production certified to one of the main schemes, and approximately 15–20% of cocoa and tea production being compliant with major international standards. Forestry and wild seafood are also sectors in which standards have been influential, with certified production pushing past 10% of the global share. Cotton, palm oil, soy, biofuels and farmed seafood are some of the commodities in which certification is growing the fastest, due in part to major roundtables that have been set up to bring the whole industry together. More recently, standards have started to emerge for mining and the extraction of metals – including gold, silver, aluminium, and oil and gas – as well as for cattle, electronics, plastics and tourism.
Evidence suggests that Corporate Social Responsibility (CSR) adopted willingly by firms can be more effective than government-regulated CSR so global standards by private companies show promise for effective social impact. Counter-arguments are discussed which express concerns around private sector, corporation-led, multistakeholder governance who adopt "weak or narrow standards" that "better serve corporate interests than rights holder interests" for self-regulation in the absence of government regulation. The creation of the ISEAL Alliance as a private organization in 2002 was the first collaborative effort amongst a group of sustainability standards organizations to agree to follow common good practices for harmonized standards implementation and also to work together to drive up the use of private standards and certification globally. In 2022, ISEAL reported 42% of their funding came from government grants. With generous
support from organizations such as The Walmart Foundation, Fairtrade USA and Rainforest Alliance.
Sustainability standards
Numerous sustainability standards have been developed to address issues of environmental quality, social equity, and economic prosperity in global production and trade practices. Despite similarities in major goals and certification procedures, there are some significant differences in terms of their historical development, target groups of adopters, geographical diffusion, and emphasis on environmental, social, or economic issues.One of the major differences is based on the level of strictness of the standard. Some standards set the bar high for a sector, promoting strong social and environmental practices and working with the top performers to constantly push up sustainability expectations. Other standards are more focused on eliminating the worst practices and operate at more of an entry-level to get a large proportion of an industry working incrementally towards better practices. Often there are strategies between standards to move producers along this performance ladder of sustainability. Another important distinction is that some standards can be applied internationally (usually with mechanisms to ensure local relevance and appropriateness), in contrast other standards are developed entirely with a regional or national focus.
Additional differences between standards might relate to the certification process and whether it is conducted by a first, second or third party; the traceability system in place and whether it allows for the segregation or mixing of certified and non-certified materials; and the types of sustainability claims that are made on products.
Fairtrade
The Fairtrade label was developed in the late 1980s by a Dutch development agency in collaboration with Mexican farmers. The initiative performs development work and promotes its political vision of an alternative economy, seeing its main objective in empowering small producers and providing these with access to and improving their position on global markets.
The most distinguishing feature of the Fairtrade label is the guarantee of a minimum price and a social premium that goes to the cooperative and not to the producers directly. Recently, Fairtrade also adopted environmental objectives as part of their certification system.
In 2020, Fairtrade International issued a position statement, defending their use of private standards, in response to a report from The Institute for Multi-Stakeholder Initiative Integrity (MSI Integrity).
Rainforest Alliance
The Rainforest Alliance was created in the late 1980s from a social movement and is committed to conserving rainforests and their biodiversity. One key element of the standard is the compulsory elaboration and implementation of a detailed plan for the development of a sustainable farm management system to assist wildlife conservation.
Another objective is to improve workers’ welfare by establishing and securing sustainable livelihoods. Producer prices may carry a premium. Yet instead of guaranteeing a fixed floor price, the standard seeks to improve the economic situation of producers through higher yields and enhanced cost efficiency.
UTZ Certified
UTZ Certified (formerly Utz Kapeh) was co-founded by the Dutch coffee roaster Ahold Coffee Company in 1997. It aims to create an open and transparent marketplace for socially and environmentally responsible agricultural products. Instruments include the UTZ Traceability System and the UTZ Code of Conduct.
The traceability system makes certified products traceable from producer to final buyer and has stringent chains of custody requirements. The UTZ Code of Conduct emphasizes both environmental practices (e.g. biodiversity conservation, waste handling, and water use) and social benefits (e.g. access to medical care, access to sanitary facilities at work).
Organic
The Organic standard was developed in the 1970s and is based on IFOAM Basic Standards. IFOAM stands for International Federation of Organic Agriculture Movements and is the leading global umbrella organization for the organic farming movement. The IFOAM Basic Standards provide a framework of minimum requirements, including the omission of agrochemicals such as pesticides and chemical-synthetic fertilizers. The use of animal feeds is also strictly regulated. Genetic engineering and the use of genetically modified organisms (GMOs) are forbidden.
Sustainable Tourism
With increasing awareness, The tourism industry has a variety of sustainability standards for different subsectors. This includes standards for sustainable hotels, sustainable tour operators, sustainable events and conferences, sustainable destinations, and so on.
LEED
The Leadership in Energy and Environmental Design standards were developed by the US Green Building Council in an effort to propel green building design in the United States. LEED certification can be attained through "compliance with all environmental laws and regulations, occupancy scenarios, building permanence and pre-rating completion, site boundaries and area-to-site ratios, and obligatory five-year sharing of whole building energy and water use data from the start of occupancy (for new construction) or date of certification (for existing buildings)".
Other examples
Other types of standards include sector-specific schemes such as the Roundtable on Sustainable Palm Oil (RSPO); standards for climate and development interventions like the Gold Standard, retailer-led sustainability certification initiatives such as GlobalGAP;
Corporate own-brand sustainability initiatives such as Starbucks' C.A.F.E. Practices; and national programs such as the Irish Food Board's 'Origin Green' scheme.The United Nations Forum on Sustainability Standards (UNFSS) is a joint initiative of FAO, UNEP, ITC, UNCTAD, and UNIDO on Sustainability Standards. UNFSS is a neutral and credible platform to maximize the potential of Voluntary Sustainability Standards (VSS) as a means to achieve Sustainable Development Goals (SDGs) through: Facilitating emerging economies' access to lucrative markets, stimulating well-informed dialogue among key stakeholders at the national and international level, and building capacities for producers and SMEs, to enhance opportunities in international trade.
See also
Certification
Circles of Sustainability
Ecolabel
Harmonization (standards)
List of sustainability topics
International Standard
Standards organization
Sustainability
Sustainable development
Sustainable sourcing
Technical Standard
United Nations Forum on Sustainability Standards
References
Recommended readings
External links
Fairtrade International's main website
FSC International
ISEAL Alliance initiative on sustainability standards
Standards Map from the International Trade Center
Referenced guide to major coffee certifications |
environmental archaeology | Environmental archaeology is a sub-field of archaeology which emerged in 1970s and is the science of reconstructing the relationships between past societies and the environments they lived in. The field represents an archaeological-palaeoecological approach to studying the palaeoenvironment through the methods of human palaeoecology. Reconstructing past environments and past peoples' relationships and interactions with the landscapes they inhabited provides archaeologists with insights into the origin and evolution of anthropogenic environments, and prehistoric adaptations and economic practices.Environmental archaeology is commonly divided into three sub-fields:
archaeobotany (the study of plant remains)
zooarchaeology (the study of faunal remains)
geoarchaeology (the study of geological processes and their relationship to the archaeological record)Environmental archaeology often involves studying plant and animal remains in order to investigate which plant and animal species were present at the time of prehistoric habitations, and how past societies managed them. It may also involve studying the physical environment and how similar or different it was in the past compared to the present day. An important component of such analyses represents the study of site formation processes. This field is particularly useful when artifacts may be absent from an excavated or surveyed site, or in cases of earth movement, such as erosion, which may have buried artifacts and archaeological features. While specialist sub-fields, for example bioarchaeology or geomorphology, are defined by the materials they study, the term "environmental" is used as a general template in order to denote a general field of scientific inquiry that is applicable across time periods and geographical regions studied by archaeology as a whole.
Subfields
Archaeobotany
Archaeobotany is the study and interpretation of plant remains. By determining the uses of plants in historical contexts, researchers can reconstruct the diets of past humans, as well as determine their Subsistence economy strategies and plant economy. This provides greater insight into a people's social and cultural behaviors. Analysis of specimen like wood charcoal, for example, can reveal the source of fuel or construction for a society. Archaeobotanists also often study seed and fruit remains, along with pollen and starch. Plants can be preserved in a variety of ways, but the most common are carbonization, water logging, mineralization, and desiccation. A field within archaeobotany is ethnobotany, which looks more specifically at the relationship between plants and humans, and the cultural impacts plants have had and continue to have on human societies. Plant usage as food and as crops or as medicine is of interest, as well the plants' economic influences.
Zooarchaeology
Zooarchaeology is the study of animal remains and what these remains can tell us about the human societies the animals existed among. Animal remains can provide evidence of predation by humans (or vice versa) or domestication. Despite revealing the specific relationships between animals and humans, discovery of animal bones, hides, or DNA in a certain area can describe the location's past landscape or climate.
Geoarchaeology
Geoarchaeology is the study of landscape and of geological processes. It looks at environments within the human timeline to determine how past societies may have influenced or been influenced by the environment. Sediment and soil are often studied because this is where the majority of artifacts are found, but also because natural processes and human behavior can alter the soil and reveal its history. Apart from visual observation, computer programming and satellite imaging are often employed to reconstruct past landscapes or architecture.Other related fields include:
landscape archaeology
bioarchaeology and human ecology
climatology
palaeoecology
archival research
History
Environmental archaeology has emerged as a distinct discipline since the second half of the 20th century. In recent years it has grown rapidly in significance and is now an established component of most excavation projects. The field is multidisciplinary, and environmental archaeologists, as well as palaeoecologists, work side by side with archaeologists and anthropologists specialising in material culture studies in order to achieve a more holistic understanding of past human livelihood and people-environment interactions, especially how climatic stress affected humans and forced them to adapt.In archaeology in the 1960s, the environment was seen as having a "passive" interaction with humans. With the inclusion of Darwinism and ecological principles, however, this paradigm began to shift. Prominent theories and principles of the time (oasis theory, catastrophism, and longue duree) emphasized this philosophy. Catastrophism, for instance, discussed how catastrophes like natural disaster could be the determining factor in a society's survival. The environment could have social, political, and economic impacts on human communities. It became more important for researchers to look at the direct influence the environment could have on a society. This gave rise to middle range theory and the major questions asked by environmental archaeology in the 20th and 21st centuries. Research has since led environmental archaeology to two major conclusions: humanity originated in Africa and agriculture originated in south-west Asia. Another important shift in thinking within the field centered around the notion of cost-effectivity. Before, archaeologists thought that humans usually acted to maximize their use of resources, but have since come to believe that this is not the case. Subsequent theories/principles include sociality and agency, and the focus on relationships between archaeological sites. Government research audits and the 'commercialisation' of environmental archaeology have also shaped the sub-discipline in more recent times.
Notable contributors
Louis Leakey contributed to a vast amount of research in this field. Leakey and his wife Mary Leakey are most known for their work on human origins in Africa. Lewis Binford developed the middle range theory. Under this theory, researchers study the relationship between humans and the environment, which can be depicted in models.
Eric Higgs researched the development of agriculture in Asia and the method of "site catchment analysis", which looks at the exploitation of land based on the land's potential.Karl Butzer is a notable pioneer of environmental archaeology and has won numerous awards and conducted research in the fields of archaeology, geography, and geology.Douglas Kennett studies environmental archaeology and human behavioral ecology. He is most known for his work investigating how climate change affected Maya civilization in its development and disintegration. and for his contributions as a member of the Comet Research Group to the controversial and disputed Younger Dryas impact hypothesis which asserts that the Clovis culture was destroyed by a shower of comets. His most widely disseminated paper was a collaboration with biblical archaeologists who believe they have discovered the ancient city of Sodom at Tell el-Hammam, Jordon, and that it was destroyed by a comet. On February 15, 2023, the following editor’s note was posted on this paper, "Readers are alerted that concerns raised about the data presented and the conclusions of this article are being considered by the Editors. A further editorial response will follow the resolution of these issues."
Methods
Environmental archaeologists approach a site through evaluation and/or excavation. Evaluation seeks to analyze the resources and artifacts given in an area and their potential significance. Excavation takes samples from different layers in the ground and uses a similar strategy to evaluation. The samples typically sought after are human and faunal remains, pollen and spores, wood and charcoal, insects, and even isotopes. Biomolecules like lipids, proteins, and DNA can be revelatory samples. With respect to geoarchaeology, computer systems for topography and satellites imaging are often used to reconstruct landscapes. The Geographic Information System (GIS) is a computer system that can process spatial data and construct virtual landscapes. Climate records are able to be reconstructed through paleoclimatology proxies, which can provide information on temperatures, precipitation, vegetation, and other climate-dependent conditions. These proxies can be used to provide context for present climate and compare past climate against the present.
Significance
Each focus within environmental archaeology collects information about a different aspect of humans' relation with their surrounding environment. Together these components (along with methods from other fields) are combined to fully understand a past society's lifestyle and interactions with their environment. Past aspects of land use, food production, tool use, and occupation patterns can all be established and the knowledge applied to current and future human-environment interactions. Through predation, agriculture, and introduction of foreign biota into new environments, humans have altered past environments. Understanding these past processes can help us pursue conservation and restorative processes in the present.Environmental archaeology provides insight on sustainability and why some cultures collapsed while others survived. Societal collapse has occurred many times throughout history, one of the most prominent examples being the Maya civilization. Using lake sediment core and climate reconstruction technology discussed earlier, archaeologists were able to reconstruct the climate present at the time of the Mayans. Although the Yucatán Peninsula was found to have extreme drought at the time Mayan society collapsed, many other factors contributed to their demise. Deforestation, overpopulation, and manipulating wetlands are only a few theories as to why the Maya civilization collapsed, but all of these worked in tandem to negatively impact the environment. From a sustainability perspective, studying how the Mayans impacted the environment allows researchers to see how these changes have permanently affected the landscape and subsequent populations living in the area.Archaeologists are increasingly under pressure to demonstrate that their work has impact beyond the discipline. This has prompted environmental archaeologists to argue that an understanding of past environmental changes is essential to model future outcomes in areas such as climate change, land cover change, soil health and food security.
References
External links
What is Environmental Archaeology?
A-Z of Archaeology: S - Seeds (Botanical Remains)
A-Z of Archaeology: T - Taphonomy (Site Formation Processes)
Aspects of Archaeology: Archaeozoology
Animals, Food and Ancient Culture
Association for Environmental Archaeology
Historic England - Environmental Archaeology
Archaeology Data Service - Environmental Archaeology Bibliography
Environmental Archaeology - Theory and Practice: Looking Back, Moving Forwards - open access themed issue |
industrial agriculture | Industrial agriculture is a form of modern farming that refers to the industrialized production of crops and animals and animal products like eggs or milk. The methods of industrial agriculture include innovation in agricultural machinery and farming methods, genetic technology, techniques for achieving economies of scale in production, the creation of new markets for consumption, the application of patent protection to genetic information, and global trade. These methods are widespread in developed nations and increasingly prevalent worldwide. Most of the meat, dairy, eggs, fruits and vegetables available in supermarkets are produced in this way.
Historical development and future prospects
Industrial agriculture arose hand in hand with the Industrial Revolution in general. The identification of nitrogen, potassium and phosphorus (referred to by the acronym NPK) as critical factors in plant growth led to the manufacture of synthetic fertilizers, making possible more intensive types of agriculture. The discovery of vitamins and their role in animal nutrition, in the first two decades of the 20th century, led to vitamin supplements, which in the 1920s allowed certain livestock to be raised indoors, reducing their exposure to adverse natural elements. The discovery of antibiotics and vaccines facilitated raising livestock in concentrated, controlled animal feed operations by reducing diseases caused by crowding. Chemicals developed for use in World War II gave rise to synthetic pesticides. Developments in shipping networks and technology have made long-distance distribution of agricultural produce feasible.
Agricultural production across the world doubled four times between 1820 and 1975 (it doubled between 1820 and 1920; between 1920 and 1950; between 1950 and 1965; and again between 1965 and 1975) to feed a global population of one billion human beings in 1800 and 6.5 billion in 2002.: 29 During the same period, the number of people involved in farming dropped as the process became more automated. In the 1930s, 24 percent of the American population worked in agriculture compared to 1.5 percent in 2002; in 1940, each farm worker supplied 11 consumers, whereas in 2002, each worker supplied 90 consumers.: 29 The number of farms has also decreased, and their ownership is more concentrated.For example, in the 2000s; the price of farmland in the United States increased due to the Midwest farming crisis. The number of small- and medium-scale farming operations decreased due to the increased production and farmland costs. This forced farmers to find alternatives by taking advantage of new products of industrial agriculture such as financialization.
Financialization takes place through the process of ongoing monetization. An example of monetization involves financial institutions expanding and gain authority in the market. Financialization affects all aspects of farm operations, including the structure of the work, the value of it and the social organizations. Farmers turned to land availability in the Brazilian Cerrado through the help of investors and other capital gaining methods needed for financialization. investors wanted to get involved because the investment appears low-risk with high rewards. For example, investors would gain inside information on the market in Brazil. In the article Financialization of work, value, and social organization among transnational soy farmers in the Brazilian Cerrado Ofstehage gives examples of how industrialized farming has evolved into a management model.A management model entails the structure and rules that ensure work of management is completed. Work is reliant on outsourcing in order to complete labor farming tasks, but is also an essential part in the way management and financial work is completed. Social value system of farming changed when using a management model. Farmers have to take into consideration the division between good and bad farming tactics under the new management model. Many farmers were reluctant to mobilize because of the effect this would have on their family business. The separation between the management styles of farmers comes down to two approaches; farming as a lifestyle versus farming solely for profit. In the Brazilian Cerrado the farming model is strictly based on increased profit margins which dictates decisions involving management and labor related work.In the U.S., four companies produce 81 percent of cows, 73 percent of sheep, 57 percent of pigs, and produce 50 percent of chickens, cited as an example of "vertical integration" by the president of the U.S. National Farmers' Union. In 1967, there were one million pig farms in America; as of 2002, there were 114,000: 29 with 80 million pigs (out of 95 million) produced each year on factory farms, according to the U.S. National Pork Producers Council.: 29 According to the Worldwatch Institute, 74 percent of the world's poultry, 43 percent of beef and 68 percent of eggs are produced this way.: 26
British agricultural revolution
The British agricultural revolution describes a period of agricultural development in Britain between the 16th century and the mid-19th century, which saw a massive increase in agricultural productivity and net output. This in turn supported unprecedented population growth, freeing up a significant percentage of the workforce, and thereby helped drive the Industrial Revolution. How this came about is not entirely clear. In recent decades, historians cited four key changes in agricultural practices, enclosure, mechanization, four-field crop rotation and selective breeding, and gave credit to a relatively few individuals.
Challenges and issues
The challenges and issues of industrial agriculture for global and local society, for the industrial agriculture sector, for the individual industrial agriculture farm, and for animal rights include the costs and benefits of both current practices and proposed changes to those practices. This is a continuation of thousands of years of the invention and use of technologies in feeding ever growing populations.
[W]hen hunter-gatherers with growing populations depleted the stocks of game and wild foods across the Near East, they were forced to introduce agriculture. But agriculture brought much longer hours of work and a less rich diet than hunter-gatherers enjoyed. Further population growth among shifting slash-and-burn farmers led to shorter fallow periods, falling yields and soil erosion. Plowing and fertilizers were introduced to deal with these problems—but once again involved longer hours of work and degradation of soil resources(Boserup, The Conditions of Agricultural Growth, Allen and Unwin, 1965, expanded and updated in Population and Technology, Blackwell, 1980.).
While the point of industrial agriculture is lower cost products to create greater productivity thus a higher standard of living as measured by available goods and services, industrial methods have side effects both good and bad. Further, industrial agriculture is not some single indivisible thing, but instead is composed of numerous separate elements, each of which can be modified, and in fact is modified in response to market conditions, government regulation and scientific advances. So the question then becomes for each specific element that goes into an industrial agriculture method or technique or process: What bad side effects are bad enough that the financial gain and good side effects are outweighed? Different interest groups not only reach different conclusions on this, but also recommend differing solutions, which then become factors in changing both market conditions and government regulations.
Society
The major challenges and issues faced by society concerning industrial agriculture include:
Maximizing the benefits:
Cheap and abundant food
Convenience for the consumer
The contribution to our economy on many levels, from growers to harvesters to processors to sellerswhile minimizing the downsides:
Environmental and social costs
Antibiotic resistance
Damage to fisheries
Cleanup of surface and groundwater polluted with animal waste
Increased health risks from pesticides
Increased ozone pollution via methane byproducts of animals
Global warming from heavy use of fossil fuels
Benefits
An example of industrial agriculture providing cheap and plentiful food is the U.S.'s "most successful program of agricultural development of any country in the world". Between 1930 and 2000 U.S. agricultural productivity (output divided by all inputs) rose by an average of about 2 percent annually causing food prices paid by consumers to decrease. "The percentage of U.S. disposable income spent on food prepared at home decreased, from 22 percent as late as 1950 to 7 percent by the end of the century."
Liabilities
Economic
Economic liabilities for industrial agriculture include the dependence on finite non-renewable fossil fuel energy resources, as an input in farm mechanization (equipment, machinery), for food processing and transportation, and as an input in agricultural chemicals. A future increase in energy prices as projected by the International Energy Agency is therefore expected to result in increase in food prices; and there is therefore a need to 'de-couple' non-renewable energy usage from agricultural production. Other liabilities include peak phosphate as finite phosphate reserves are currently a key input into chemical fertilizer for industrial agriculture.
Environment
Industrial agriculture uses huge amounts of water, energy, and industrial chemicals; increasing pollution in the arable land, usable water and atmosphere. Herbicides, insecticides, fertilizers and animal waste products are accumulating in ground and surface waters. "Many of the negative effects of industrial agriculture are remote from fields and farms. Nitrogen compounds from the Midwest, for example, travel down the Mississippi to degrade coastal fisheries in the Gulf of Mexico. But other adverse effects are showing up within agricultural production systems—for example, the rapidly developing resistance among pests is rendering our arsenal of herbicides and insecticides increasingly ineffective.".
Chemicals used in industrial agriculture, as well as the practice of monoculture, have also been implicated in Colony Collapse Disorder which has led to a collapse in bee populations. Agricultural production is highly dependent on bee pollination to pollinate many varieties of plants, fruits and vegetables.
Social
A study done for the U.S. Office of Technology Assessment conducted by the UC Davis Macrosocial Accounting Project
concluded that industrial agriculture is associated with substantial deterioration of human living conditions in nearby rural communities.Future increase in food commodity prices, driven by the energy price rises under peak oil and dependency of industrial agriculture on fossil fuels is expected to lead to increase in food prices which has particular impacts on poor people. An example of this can be seen in the 2007–2008 world food price crisis. Food price increases have a disproportionate impact on the poor as they spend a large proportion of their income on food.
Animals
"Concentrated animal feeding operations" or "intensive livestock operations", can hold large numbers (some up to hundreds of thousands) of animals, often indoors. These animals are typically cows, hogs, turkeys, or chickens. The distinctive characteristics of such farms is the concentration of livestock in a given space. The aim of the operation is to produce as much meat, eggs, or milk at the lowest possible cost and with the greatest level of food safety.
Food and water are supplied in place, and artificial methods are often employed to maintain animal health and improve production, such as therapeutic use of antimicrobial agents, vitamin supplements and growth hormones. Growth hormones are not used in chicken meat production nor are they used in the European Union for any animal. In meat production, methods are also sometimes employed to control undesirable behaviours often related to stresses of being confined in restricted areas with other animals. More docile breeds are sought (with natural dominant behaviours bred out for example), physical restraints to stop interaction, such as individual cages for chickens, or animals physically modified, such as the de-beaking of chickens to reduce the harm of fighting. Weight gain is encouraged by the provision of plentiful supplies of food to animals breed for weight gain.
The designation "confined animal feeding operation" in the U.S. resulted from that country's 1972 Federal Clean Water Act, which was enacted to protect and restore lakes and rivers to a "fishable, swimmable" quality. The United States Environmental Protection Agency (EPA) identified certain animal feeding operations, along with many other types of industry, as point source polluters of groundwater. These operations were designated as CAFOs and subject to special anti-pollution regulation.In 17 states in the U.S., isolated cases of groundwater contamination has been linked to CAFOs. For example, the ten million hogs in North Carolina generate 19 million tons of waste per year. The U.S. federal government acknowledges the waste disposal issue and requires that animal waste be stored in lagoons. These lagoons can be as large as 7.5 acres (30,000 m2). Lagoons not protected with an impermeable liner can leak waste into groundwater under some conditions, as can runoff from manure spread back onto fields as fertilizer in the case of an unforeseen heavy rainfall. A lagoon that burst in 1995 released 25 million gallons of nitrous sludge in North Carolina's New River. The spill allegedly killed eight to ten million fish.The large concentration of animals, animal waste and dead animals in a small space poses ethical issues to some consumers. Animal rights and animal welfare activists have charged that intensive animal rearing is cruel to animals. As they become more common, so do concerns about air pollution and ground water contamination, and the effects on human health of the pollution and the use of antibiotics and growth hormones.
According to the U.S. Centers for Disease Control and Prevention (CDC), farms on which animals are intensively reared can cause adverse health reactions in farm workers. Workers may develop acute and chronic lung disease, musculoskeletal injuries, and may catch infections that transmit from animals to human beings. These type of transmissions, however, are extremely rare, as zoonotic diseases are uncommon.
Crops
The projects within the Green Revolution spread technologies that had already existed, but had not been widely used outside of industrialized nations. These technologies included pesticides, irrigation projects and synthetic nitrogen fertilizer.
The novel technological development of the Green Revolution was the production of what some referred to as "miracle seeds." Scientists created strains of maize, wheat and rice that are generally referred to as HYVs or "high-yielding varieties." HYVs have an increased nitrogen-absorbing potential compared to other varieties. Since cereals that absorbed extra nitrogen would typically lodge, or fall over before harvest, semi-dwarfing genes were bred into their genomes. Norin 10 wheat, a variety developed by Orville Vogel from Japanese dwarf wheat varieties, was instrumental in developing Green Revolution wheat cultivars. IR8, the first widely implemented HYV rice to be developed by the International Rice Research Institute, was created through a cross between an Indonesian variety named "Peta" and a Chinese variety named "Dee Geo Woo Gen."With the availability of molecular genetics in Arabidopsis and rice the mutant genes responsible (reduced height(rh), gibberellin insensitive (gai1) and slender rice (slr1)) have been cloned and identified as cellular signaling components of gibberellic acid, a phytohormone involved in regulating stem growth via its effect on cell division. Stem growth in the mutant background is significantly reduced leading to the dwarf phenotype. Photosynthetic investment in the stem is reduced dramatically as the shorter plants are inherently more stable mechanically. Assimilates become redirected to grain production, amplifying in particular the effect of chemical fertilizers on commercial yield.
HYVs significantly outperform traditional varieties in the presence of adequate irrigation, pesticides and fertilizers. In the absence of these inputs, traditional varieties may outperform HYVs. One criticism of HYVs is that they were developed as F1 hybrids, meaning they need to be purchased by a farmer every season rather than saved from previous seasons, thus increasing a farmer's cost of production.
Sustainable agriculture
The idea and practice of sustainable agriculture has arisen in response to the problems of industrial agriculture. Sustainable agriculture integrates three main goals: environmental stewardship, farm profitability and prosperous farming communities. These goals have been defined by a variety of disciplines and may be looked at from the vantage point of the farmer or the consumer.
Organic farming methods
Organic farming methods combine some aspects of scientific knowledge and highly limited modern technology with traditional farming practices; accepting some of the methods of industrial agriculture while rejecting others. Organic methods rely on naturally occurring biological processes, which often take place over extended periods of time, and a holistic approach; while chemical-based farming focuses on immediate, isolated effects and reductionist strategies.
Integrated Multi-Trophic Aquaculture is an example of this holistic approach. Integrated Multi-Trophic Aquaculture (IMTA) is a practice in which the by-products (wastes) from one species are recycled to become inputs (fertilizers, food) for another. Fed aquaculture (e.g. fish, shrimp) is combined with inorganic extractive (e.g. seaweed) and organic extractive (e.g. shellfish) aquaculture to create balanced systems for environmental sustainability (bio-mitigation), economic stability (product diversification and risk reduction) and social acceptability (better management practices).
See also
Agrochemical
Agroextractivism
== References == |
nickel mining in new caledonia | Nickel mining in New Caledonia is a major sector of the New Caledonian economy. The island contains about 7.1 million tonnes of nickel reserves, about 10% of the world's total. With an annual production of 200,000 tonnes in 2020, New Caledonia was the world's fourth largest producer after Indonesia (760,000), Philippines (320,000), and Russia (280,000), followed by Australia (170,000) and Canada (150,000).Nickel production in New Caledonia accounts for 6% of the island's GDP and 24% of private employment. With the exclusion of tourism, nickel ore and derived metallurgical products represent about 90% of the total value of exports. The industry has played a dominant role in the politics of New Caledonia for over a century.
History
Nickel was found in New Caledonia in 1864 by engineer Jules Garnier. It is distributed in lateritic layers that cover about one third of the area of the main island of New Caledonia. The nickel concentration is inhomogeneous and also varies with the depth. Whereas its usual concentration is 2–5 percent, it can reach 10–15 percent in scattered deposits of green garnierite. Those areas were developed first, using primitive manual extraction methods and were gradually depleted, resulting in the present average concentration of about 2.6 percent. This nickel is located at a depth of about 30 metres (98 ft). Shallower layers of 10–20 metres (33–66 ft) also contain nickel, but at half the concentration. They remain unexploited and constitute most of the nickel reserves of New Caledonia.Wide-scale mining started in 1875 in Houaïlou and Canala communes. Early mining was done by hand and then gradually became mechanised. By beginning of the 20th century two large mines at Bourai and Thio were established. In the initial years, after nickel was discovered mining was done in about 330 mines. However, in 1981 there were only 30 functional mines as against 130 in the early 1970s.
Because of the remote location of the islands, about half of the ore was smelted locally, despite the underdeveloped industrial infrastructure of New Caledonia. Another half was exported, mainly to Japan. The first nickel smelter was built in 1879 with two other added in 1910 and 1913. The smelted product contained about 70–80% nickel and was sent for refining to France. Because of low nickel content in the ore, local smelting resulted in vast amount of displaced rocks near the smelters that changed the local landscape.In the 1930s, the Europeans (also called Caldoche) and companies like the Société le Nickel dominated the economies of the colony. The native Melanesians were confined to reservations which made up only 10 per cent of New Caledonia's land area. The main source of mine labor came from Asian migrants recruited by France. The arrival of these migrants from India, Japan, China, Java, and Vietnam both increased and changed the demographics of New Caledonia's population. By the 1920s, Asians outnumbered the French.The production of ore was nearly constant between 1875 and 1948, but then increased about 70 times reaching a peak of about 8 million tonnes in 1971, at which time New Caledonia was the second largest nickel producer in the world. In the second half of the 1960s, the nickel industry experienced rapidly increasing demand linked to the Vietnam War. New Caledonia's exports had quadrupled over the past decade. This rise followed by a decline, to about 4 million tonnes of ore in 1981, due to cyclones, reducing demand for the metal and increasing role of other world producers, such as Indonesia, Philippines and Australia. Correspondingly, the mined area decreased from 21,500 to 8,700 hectares (53,000 to 21,000 acres) and the number of people employed in the industry from about 6,200 to about 3,600. Nearly half of them worked at the mines and another half at the major Doniambo processing plant near Noumea.
Mines
Strip mining is the most common technique adopted for nickel mining and statistics show that stripping of 500 million tonnes of overburden had to be removed to extract nickel ore, which amounted to clearing an area of 20 hectares (49 acres) per million tonne (five million tonnes of ore per year generate 25 million tonnes of tailings).The local nickel industry is dominated by the French company Eramet which has a 60% interest in its nickel mining subsidiary, SLN (Societe Le Nickel) in New Caledonia. Other firms such as Falconbridge Ltd., Inco, Argosy Minerals and QNI however are still active in New Caledonia, particularly Inco in the Goro mine which produces both nickel and cobalt, about 54,000 tonnes of nickel annually.Despite a decline in the nickel mining, New Caledonia remains one of world's largest producers of laterite, a source of ferronickel (an alloy of iron and nickel) which constitutes about 20% of country's production. Another 80% is nickel extracted from saprolite. In 2008, New Caledonian ferro-nickel was mostly exported to the European Union (41.8%), Japan (18.2%), Taiwan (18.2%), China (8.0%), India, South Africa, South Korea (2.4%) and the United States. On the contrary, all smelted nickel is sent to France.The major mines are Goro, Thio, Koniambo, Kouaoua, Nepoui – Kopeto and Etoile du Nord. Recently the new Tiebaghi mine has been opened which will be responsible for some 30% of SLN's annual production, accounting to 20,000 tonnes per year.
Goro Nickel Plant
Goro mine, is one of the largest hydrometallurgical process plants constructed, estimated to cost $3.2bn, with a design capacity of 60,000 tonnes of nickel per annum. The nickel is extracted from laterite, with proven reserves of 120 million tonnes. Cobalt is also being produced here from saprolite deposits. Opencast extraction to depths of 50–60 m is being employed (the shallower layers have no commercial value). The major share in the Plant is held by a consortium with Vale Inco (of Brazil) holding a 69% share and a joint company called Sumic Nickel Netherlands, Japan's Sumitomo Metal Mining Co. Ltd., and Mitsui Co. Ltd., holding 21%.share. However, in 2020 Vale is in the process of selling all of its interest to New Century mining. The three provinces of New Caledonia hold the balance 10% share. The project was stalled for a while as the local community of Kanak people stiffly opposed the project, particularly of laying the offshore line. As of 2014 pollution into the lagoon was a problem and there were shutdowns.
Environmental impact due to nickel mining
Even though the nickel mining operation is crucial to the economy of the region, its environmental adverse impacts on the environment and ecology have invited protests from the Environmental lobbies. The environmental groups, with its social and political undertones are seeking remedial measures to redress mines' landscape impacts and the ecological aspects. Some of the impacts brought out are the following.Ramsar Organization dealing with wetlands has brought out a few adverse effects from the nickel mining operations on the wetlands in the interior regions of New Caledonia. Many wetlands have either been lost or spoiled. Rivers and streams have been choked with tailings from the waste material dumped from the nickel mines. This has resulted in rise in bed levels of the rivers and consequent flooding affecting fertile agricultural lands. Many river delta areas have been affected creating changes in aquatic flora and fauna; the mining effluents are reported to have affected about 40 streams in their middle and lower reaches. Even estuaries and bays are reportedly affected by the “red clay and lateritic sub-soil,” which covers some of the mangrove forests.During the boom period of nickel extraction in the state, there were serious visible effects on the environment, consequent to stripping of hill slopes. Erosion of hill slopes are reported to have continued, even after closure of some open cut mines in the Theo Mining Centre on the east coast of the main island. It is reported that the Thio centre provides, especially its Plateau mine (Theo Mining centre once produced 20 million tonnes of nickel ore), the most striking example of the environmental damage caused by mining activity in New Caledonia. A study carried out in 1991 had observed that 1 million tonnes of solid mass of dumped material from the nickel mines caused shift of the delta of a lagoon by about 300 m due to sedimentation. However, it is also observed that nickel mining is a "politically sensitive subject...it remains the most important economic sector on the island”. Studies done at Nouméa (the capital of the Island) had established that the flumes from nickel factories jetted out a plume of black and red smoke. The discharges from the factories had also recorded high levels of nickel, arsenic and lead, apart from phenol, hydrocarbons, hydrogen sulfide, PCB and pyraline. The head of the bay area also recorded higher levels of nitrites, nitrates and phosphates.Mines now in operation are better managed under opencast mining as compared to the past. However, according to environmental impact studies carried out, two new large nickel mining and processing plants have been identified as detrimental to the adjoining coral reefs and also to plant and animal species. Planned mitigation measures may still eliminate some adapted species.
Pollution abatement measures
The government of New Caledonia has evolved strategies, technologies and policies to maintain the balance between environmental conservation measures and mining industry. The new legislation has ensured enforcement of installing pollution abatement equipment followed by re-plantation of vegetation after mine is exploited, and technological improvements for efficient economic extraction concomitant with environmental friendly pollution control measures. The government regulations have been effectively adopted by mine inspectors and through environmental impact assessments since 1992, even though regulations have been existence for 15 years prior to that. Apart from introducing new techniques, other measures adopted for environmental abatement are: 14 zones covering 19,430 hectares (48,000 acres) have been declared protected areas from prospecting or mining, construction of sedimentation barriers, catchment area treatment, creation of settlement basin and terraces to reduce silt flow into streams and rivers, minimum road building activity in the area of mining, creation of a vegetation barrier along roads and in the vicinity of the mines, adopt satellite remote sensing techniques for mapping and locating mining areas which would avoid road building for the purpose and completely re-vegetate the closed or fully extracted mines. In addition, a monitoring team of inspectors of mines is also instituted to check and ensure that pollution abatement measures are fully implemented. In 1994, a mining centre was set up at Nepoui-Kopeto not only to increase productivity levels by adopting modern mining methods but also to develop pollution control capabilities at mining sites.
Gallery
== References == |
oat milk | Oat milk is a plant milk derived from whole oat (Avena spp.) grains by extracting the plant material with water. Oat milk has a creamy texture and mild oatmeal-like flavor, and is manufactured in various flavors, such as sweetened, unsweetened, vanilla, and chocolate.
Unlike other plant milks having origins as early as the 13th century, oat milk was developed in the 1990s by the Swedish scientist Rickard Öste. Over 2017–2019, oat milk sales in the United States increased 10 fold, and one major manufacturer, Oatly, reported a three-fold increase in worldwide sales. As of late 2020, the oat milk market became second-largest among plant milks in the United States, following the leader, almond milk, but exceeding the sales of soy milk.By 2020, oat milk products included coffee creamer, yogurt alternatives, ice cream, and chocolate. Oat milk may be consumed to replace dairy in vegan diets, or in cases of medical conditions where dairy is incompatible, such as lactose intolerance or an allergy to cow milk. Compared to milk and other plant-based beverages, oat milk has relatively low environmental impact due to its comparatively low land and water needs for production.
History
Invention
Soy milk and almond milk predate all other alternative milks, including oat milk, both as cultural and commercial products. Since the early 20th century, soy milk made its way from Asia to European and American grocery stores, initially as a dairy substitute due to lactose intolerance. The increase in consumption of soy milk since its global distribution created a large market for plant-based beverages like oat milk. The first recorded instance of an oat-based plant beverage was in the early 1990s, when Rickard Öste developed oat milk. Öste was working as a food scientist at Lund University in Lund, Sweden, researching lactose intolerance and sustainable food systems, when he invented the drink. Soon after, Öste founded Oatly, the first commercial manufacturer of oat milk.
History of market expansion
The pioneer in commercial oat milk, Oatly, had its products in 7,000 coffee shops and grocery stores, as of 2019, but was not the only prominent oat milk producer. Oat milk is available in many countries under various brands.In 2018, there were numerous oat milk shortages from unprecedented demand in Europe and North America, highlighting the strong consumer demand for this product. To meet the American demand, Oatly opened a new factory in New Jersey in April 2019, producing 750,000 US gallons (2,800,000 L; 620,000 imp gal) per month of oat milk base, and announced plans for a Utah-based factory three times larger to open in early 2020. In 2019, retail sales of oat milk in the United States were $29 million, up from $4.4 million in 2017. During 2020, oat milk sales in the United States increased to $213 million, becoming the second most consumed plant milk after almond milk ($1.5 billion in 2020 sales).Oat milk ice cream, yogurt-like products, and coffee creamers, were common in 2019, with expanded uses in coffee shops, such as Starbucks, and growth into new markets, such as China. Growth in the oat milk market is partly attributed to its relatively low environmental impact, low land and water needs, and rising vegan dietary practices in developed countries.From 2019 to 2020 in the United States, oat milk sales increased 303% to US$213 million, with refrigerated oat milk having nearly ten times the sales of shelf-stable oat milk. Consumer analysis of the growth in oat milk consumption indicates its market growth derives from the dairy-like taste, health perception, and environmental sustainability, which contrasts with the high water demand of growing almonds. Oat milk foams and mixes in other beverages, like coffee, in ways similar to milk.
Over 2020-21, oat milk sales increased 151%, with it becoming the second-most consumed plant milk after almond milk. On 20 May 2021, Oatly – the world's largest oat milk manufacturer – became a publicly traded company on the NASDAQ exchange, having a market value of US$13 billion on that day.
Production
Processing
The production of oat milk is similar to that of most other plant milks. Unprocessed cereal grains, like oats, are indigestible due to their hard, outer hull; processing is also necessary to change the dry grains into a liquid.The procedure starts by measuring and milling the oat grains to break apart their outer hull. Then the grains are stirred in warm water and ground into a slurry. The slurry is treated with enzymes and heat to create a thick liquid oat base.Soaking and subsequently extracting nutrients from the oats have the most direct implications on the final milk product. Increasing the yield in this step may be assisted by chemical catalysts, enzymes, or an increase in temperature, all in order to remove nutrient molecules from the solid byproduct and incorporate them into the liquid. Chemical catalysts increase the pH of the mixture, enzymatic catalysts induce partial hydrolysis of proteins and polysaccharides, and higher temperatures increase reaction rates. Separating the liquid from the solid byproduct is a simple step achieved through decanting, filtration, and spinning in a centrifuge.Once the liquid product is separated, adding other ingredients, such as fortifying vitamins and minerals, or sweeteners, flavorings, salts, oils, and similar ingredients, forms the final product. Since unfortified oat milk is lower in calcium, iron, and vitamin A than milk, these nutrients must be added in order for the end product to be a nutritional substitute of milk. Homogenization and heat-treatments such as pasteurization or ultra-high temperature (UHT) treatments are used to extend the product's shelf life.
Challenges to processing
Oat milk, like most plant-based milks, is made of disintegrated and hydrolyzed plant materials, resulting in non-uniform particle sizes in comparison to bovine milk. Decreasing particle size and narrowing the distribution through physical processing like homogenization, and using stabilizers, such as hydrocolloids in combination with other emulsifiers, are common ways to improve product quality.Another problem posed by the natural composition of oats is their high starch content. The starch content (50–60%) is challenging during ultra-high temperature treatments because of the relatively low gelatinization temperature of starch. To overcome this, producers use an enzymatic hydrolysis of starch by alpha- and beta-amylase, which break down the starch into smaller polysaccharides without the previous gelatinization behavior.Fortifying oat milk with essential micronutrients may include vitamin D, vitamin A, vitamin B12, riboflavin, and calcium.
Veganism and environmental impact
Since around 2015, interest for plant-based foods, in combination with concerns for animal welfare and low environmental impact, propelled consumption of oat milk. Compared to milk and other plant-based milks, the oat milk manufacturing process produces small amounts of carbon dioxide and no methane (low greenhouse gas emissions), and requires relatively low use of water and land. Oat milk production requires 1/15th the amount of water of milk production and 1/8th the water of almond milk.
Nutritional composition
Nutritional content of human, cow, soy, almond, and oat milks
Non-human milks are fortified
In comparison to cow's milk, oat milk is similar in total calories per liquid volume (per cup serving, 120 vs 149 calories for cow's milk), has 40% the protein content, 63% of the fat, but only about 10% of the saturated fat content, and about 1.5 times the total carbohydrate (although simple sugars are half that of cow's milk). Cow's milk has no fiber, but oat milk has 2 g dietary fiber per serving. Calcium and potassium contents are comparable, although oat milk – as for all plant-based milks – may be fortified with specific nutrients during manufacturing. It has a glycemic index of 60; cow's milk is 47.
Uses
Oat milk is used as a substitute for milk in custom coffee preparation, and in fermented products similar to yogurt and kefir. Baristas claim that oat milk needs less steam than cow milk, froths favorably, is tasteful, rich, and creamy like cow milk, and effectively balances the acidity of espresso coffee. It has growing applications in coffee preparation at major coffee shops.
See also
Almond milk
Coconut milk
Plant milk
Pea milk
Soy milk
== References == |
rural sociology | Rural sociology is a field of sociology traditionally associated with the study of social structure and conflict in rural areas. It is an active academic field in much of the world, originating in the United States in the 1910s with close ties to the national Department of Agriculture and land-grant university colleges of agriculture.While the issue of natural resource access transcends traditional rural spatial boundaries, the sociology of food and agriculture is one focus of rural sociology, and much of the field is dedicated to the economics of farm production. Other areas of study include rural migration and other demographic patterns, environmental sociology, amenity-led development, public-lands policies, so-called "boomtown" development, social disruption, the sociology of natural resources (including forests, mining, fishing and other areas), rural cultures and identities, rural health-care, and educational policies. Many rural sociologists work in the areas of development studies, community studies, community development, and environmental studies. Much of the research involves developing countries or the Third World.
History
United States
Rural sociology was a concept first brought by Americans in response to the large amounts of people living and working on the grounds of farms. Rural sociology was the first and for a time the largest branch of American sociology. Histories of the field were popular in the 1950s and 1960s.
Europe
History of European Rural Sociology
Though Europe included more agricultural land than the United States at the turn of the twentieth century, European rural sociology did not develop as an academic field until after World War II. This is partially explained by the highly philosophical nature of pre-war European sociology: the field’s focus on broad scale generalizations largely erased rural-urban difference. European sociology in the early 1900s was also almost entirely siloed within European academia, with little cross Atlantic pollination. Practical applications and research methods employed by Land Grant Colleges, the Country Life Commission, and early American rural sociologists like W.B. Du Bois were also well beyond the strictly academic sphere in which European sociologists resided. The concerns of rural people, farmers, and agriculture were simply outside the attention of most European sociologists at that time.
Post war, European academic institutions began to understand that “there was something useful in the activities of those queer people who called themselves rural sociologists.” Stronger relationships between American and European sociologists developed in the late 1940s, which was reflected in the Marshall Plan of 1948. The Plan formalized the United States as a source of information and economic guidance for postwar Europe and allocated the equivalent of 100B in 2023 dollars to help Europe rebuild, especially its food systems and machinery needed to expand agricultural production. With this aid came an infusion of empirical rural research designed to promote rural growth and agricultural success.
The United States’ influence was reflected in pedagogical changes to include rural sociological methods pioneered by American rural sociologists, particularly statistics. Education met increased government demand for sociological expertise brought by European reconstruction and a growing understanding of the importance of sociological understanding to policy making.While the mid 20th century saw rural sociological research in most European nations driven by government need, rural sociology as an academic discipline was rare in general universities. This was due in part to the lack of university agricultural programs but also a general resistance to applied sciences. Where rural sociology classes did exist, an emerging divergence from the American model presented itself in European’s treatment of culture as an independent variable in rural sociological research. E.W. Hofstree, by all accounts the grandfather of European rural sociology, observed why cultural difference was of particular importance in Europe:
"In Europe, not only between the different nations but also between an infinite number of regional and even local groups within every country, there are differences in culture, which influence the behaviour of those groups considerably.... it will take a long time before Europe will show the same basic culture everywhere, and I must say that, from a personal point of view, I hope that it will take a very long time."This departure from America’s more homogenous treatment of rural culture grounded the field in methods that require community-level planning before technical change or community development can occur. These differences somewhat receded the 1950s and 60s, when European rural sociology shifted away from sociocultural study and towards the facilitation of modern agricultural practices. This shift was driven by government interest in policy change as well as the perception that “backward [European] farmers [are] backward not only socially and culturally, but also economically and technically.” After relatively united beginnings, European rural sociology faced internal disagreements about pedagogy, focus, and direction in the 1970s. Many felt the field had strayed too far from its sociocultural roots, become too empirical, and overly aligned with government. Critics were particularly concerned by the field’s seeming disregard for consideration of social interaction and culture, and encouraged a return to earlier modes of rural sociology that centered community structure. Ultimately, the field regained it balance between empiricism and sociocultural and institutional study in the 1980s. Considerations of European rural sociologists have since expanded to include food systems, rural-urban interface, urban poverty, and sustainable development.Outside formal academic programs, rural sociology organizations and journals were founded in the 1950s, including Sociologia Ruralis—which still publishes today— and the European Society for Rural Sociology (ESRS). Founded in 1957 by E.W. Hofstee, the ESRS welcomes international membership, including professional rural sociologists as well as those interested in their work and holds regular congresses that promote cross boundary collaboration and the growth of rural sociology research. Its liberal internationalism and inclusivity makes it a unique interdisciplinary organization that stands somewhat apart from academia and splits its focus between theory and applied research. For example, in 2023, the ESRS’s congress included working groups on diverse topics, including rural migration, population change, place making, mental health, and the role of arts and culture in sustaining rural spaces.Rural Spaces in Europe
The relevance of Rural Sociology to the European continent is undeniable. 44% of the EU’s total land is considered “rural,” with the Union’s newest countries including even higher percentages (upwards of 50%). More than half the population of several member states, including Slovenia, Romania, and Ireland, live in rural spaces.While the definition of rurality in Europe has traditionally included all “non-urban” spaces academia’s definition of the term is in flux as more residents move to liminal spaces (sub-urban, peri-urban, ex-urban). Unlike the United States, European populations in urban areas are shrinking, with a noted uptick in migration back to rural and intermediary spaces over the last two decades, and especially since the end of COVID-19 lockdowns. These increasingly populated rural spaces are being met with greater economic development and tourism in the last two decades. As of 2020, 44% of Europe’s population was categorized as “intermediate”, and only 12% reside in urban space.Despite these changes, focus on rural issues has been largely siloed within rural sociology programs. Between 2010 and 2019, the Council for European Studies hosted only one panel on Rural issues (Farm, Form, Family: Agriculture in Europe). There are signs this may be changing. Europe Now, a widely distributed mainstream academic journal, recently devoting an entire article to the intersection of European and rural studies, including articles challenging the continued applicability of the urban-rural dichotomy, land access, food, resource use disparity, and culture. This move towards interdisciplinarity reflects the human and topographical geography of Europe writ large, and foreshadows possible integration of rural sociology into mainstream academic discourse.
Australia and New Zealand
Rural sociology in Australia and New Zealand had a much slower start than its American and European counterparts. This is due to the lack of land grant universities which heavily invested in the discipline in the United States and a lack of interest in studying the “peasant problem” as was the case in Europe. The earliest cases of studying rural life in Australia were conducted by anthropologists and social psychologists in the 1950’s, with sociologists taking on the subject beginning in the 1990’s.Attempts were made between 1935-1957 to bring an American style rural sociology to New Zealand. The New Zealand department of Agriculture, funded by the Carnegie Foundation, tasked Otago Universities economist W.T. Doig with surveying living standards in rural New Zealand in 1935. The creation and funding of such a report mirrors America's Commission on Country Life. Additional Carnegie funds were granted to the Shelly Group who conducted the countries first major sociological community study and endorsed the creation of land grant institutions in New Zealand. Ultimately, these attempts to institutionalize rural sociology in New Zealand failed due to the departments lack of organization and failure to publish impactful survey results.Early studies of rural sociology in the region focused on the influence of transnational agribusiness, technological changes effects on rural communities, the restructuring of rural environments, and social causes of environmental degradation. By the mid 2000's researchers focus had shifted towards broader sociological questions and variables such as the construction and framing of gender among Australian and New Zealand farmers, governmental policies impacts on rural spaces and studies, and rural safety and crime. Scholars have additionally focused on rural residents, particularly farmers, opinions of environmentalism and environmental policies in recent years. Such a focus is particularly salient in New Zealand where livestock farming has historically been a major national source of income and environmental policies have become increasingly strict in recent years.
Though early scholars of rural sociology in Australasia tout it for its critical lens, publications in the 2010’s and 2020’s have accused the discipline of omitting the experiences of indigenous peoples, failing to account for class based differences, discounting the importance of race and ethnicity, and only recently incorporating in studies of women in rural places. Work on rural women in the region has often incorporated white feminism and used a colonial lens. As a response, scholars, particularly in New Zealand (Aotearoa), have begun to focus on the experiences of the Māori in rural areas, while likewise shifting from solving issues of farmers to rural residents. A few scholars in Australia have likewise begun to incorporate the experiences of Aboriginal peoples into their scholarship, some of whom are indigenous scholars themselves. In particular, Sandy O'Sullivan, Chelsea Joanne Ruth Watego, and Aileen Moreton-Robinson have risen to prominence in recent years, though the later two identify more as indigenous feminist scholars then rural sociology scholars.
Today many prominent scholars do not belong to a department of rural sociology, but rather related disciplines such as geography in the case of Ruth Liepins, Indigenous Studies in the case of Sandy O'Sullivan, or Arts, Education, and Law in the case of Barbara Pini. Today courses in the discipline can be studied at a small number of institutions: University of Western Sydney (Hawkesbury), Central Queensland University, Charles Sturt University, and the Department of Agriculture at the University of Queensland. Additionally, academics who publish in the discipline, such as Ann Pomeroy, Barbara Pini, Laura Rodriguez Castro, and Ruth Liepins, can be found at University of Otago, Griffith University, and Deakin University.
Latin America
The beginnings of rural sociology’s development in Latin America began in 1934 under the research of Commission of Cuban Affairs of the Foreign Policy Association member Carle C. Zimmerman. As a North American rural sociologist, he conducted a study in Cuba comparing the wealth and conditions of cane workers to that of colonizers. The results of this work ultimately resulting in a demand of rural life studies expanding to Bolivia, Brazil, Argentina, and Mexico largely for the sake of materials to fuel the quality of the United States’ performance in World War II.
In the midst of the war, other rural sociologists were exploring the rural life of other countries. Dr. Olen Leonard assisted in the establishment of Tingo Maria’s Agricultural Extension program, the study of which was published in 1943. While in Ecuador, Leonard attempted to establish a similar program in the Hacienda Pichalinqui region by identifying how locals gathered, the value and meaning of possessions, and the attitudes of those in the area. His work in Guatemala consisted of assisting public officials develop a long term plan for agricultural education; in Nicaragua he participated in the development of a general and agricultural population census. Glen Taggert (El Salvador), Dr. Carl Taylor (Argentina), and T. Lynn Smith (Colombia, El Salvador) all also took part in advancing Agricultural Extension programs in Latin America. Taylor’s work in particular inspired the Argentinian Institute of Agriculture to create the Institute of Rural life.
The Caracas Regional Seminar on Education in Latin America of 1948 established fundamental education as a system that would be “specifically attending to native groups in such a way as to promote their all-around development in accordance with their best cultural traditions, economic needs, and social idiosyncrasies”. This establishment catapulted a pilot project that would be explicitly tailored to the education of adults in rural communities. By the Fourth Inter-American Agricultural Conference in 1950 Montevideo, the United Nations departments of Food and Agriculture Organization and the International Labour Organization were given the responsibility of becoming more involved in those activities that would benefit rural welfare. As a combined force, they were also tasked with requesting that studies be performed on conditions of social, economic, and spiritual nature as they pertain to the well-being of rural communities.
There are five ways in which Latin American rural communities are differentiated from North American rural communities in 1958:
Village Community: Rural communities in Latin America are much more likely to be established around village communities. This type of community showed the highest prevalence in Mexico, Guatemala, Ecuador, Peru, and Bolivia. This is due to these countries having stronger aboriginal elements where the villagers own the land.
Church and State: At this point in time, Latin American countries were reported as having a government with stronger ties to religion, ideals and decision-making processes falling in line exactly with the church parish. In this same vein, municipalities are drawn almost exclusively to account for the social and economic factors of the region in an attempt to create a more natural social environment.
Social Organization: The rural experience of Latin America is much more closely knit. Rather than being familiar or having some sort of affiliation with the entirety of the area in an “everyone knows everyone” manner, the social organization here reflects a more contained approach to relationships. Social circles extend strictly to those with which they have daily interactions, hardly straying outside. This approach means that if these few relationships do not produce a particular set of goods, then the group must go without.
Trade and Commerce: Keeping in line with the established relationship between church and state, the portions of a rural area that would be considered the trade center in North America are referred to as “ceremonial” or “church” centers. Bartering was the dominating form of economics among Latin American countries.
Stable Environment: Latin American rural communities did not face much in the way of threats against the sustainability of their lifestyles. Hardly any boundaries—administrative, legal, judicial, fiscal, or otherwise—obstructed the ability to maintain natural rural areas and the lives of the residents settled in them.Mobilized peasants of the 1960s and 1970 attracted scholars to perform more in-depth studies on Latin American rural life. Conflict struck between the Marxist lean of social science and neoclassical domination of economics. Rural class structure, agrarian reform, and capitalist modes of production were all topics of discussion as the peasantry navigated their revolutionary status. The turn of the 21st century introduced the concept of “new rurality”. The shaping of Latin America’s rural economy had finally become entrenched in the newfound neoliberalism and globalization of the 1980s and 90s. Researchers claim that this has been expressed through embracing non-farm activities, feminization of rural work, growing rural-urban relations, and migration and remittances. Though some argue that no change has occurred because social ills (e.g., poverty, social injustice) prevail.
Asia
Early studies of rural sociology in Asia appear to first occur and be written about in the mid 19th and early 20th century, though the records of ancient thought on the matter of agriculturalists and peasants in rural spaces appear much earlier. India was a focus of many sociological studies in rural areas, with Henry S. Maine writing Ancient Law (1861), which studied some elements of Indian rural society. Similar texts from around that time were written by those with connections to the East India Company. Holt Mackenzie and Charles Metcalf both wrote about village communities and village life in India, and the East India Company published general reports on Indian territories like, for example, the Punjab territories from the mid 19th and early 20th century.India, however, was not the only focus of early sociological literature on rural life in Asia. A Systematic Source Book in Rural Sociology by Pitirim A. Sorokin was published in 1930 and focused on European, Asiatic, and American literature and thought on rural sociology . Sorokin outlines ‘Ancient Oriental Sources’ from Assyro-Babylonia, China, Egypt, India, Japan, Palestine, and Persia. He argues that caste is important for understanding agriculture in ancient India, and that the government and its structure can be used to explain the importance of agriculture and rural life in China. Sorokin makes these conclusions by drawing on records from these countries, which indicate study and thought about the sociology of early agriculturalists and those in rural areas. The excerpts and records used “give the ancient evaluation of agriculture as being a means of group subsistence as compared with other occupations; they reflect the society’s view as to the relative rank of the cultivators in the social order; they depict ancient opinions concerning agriculture as an economic basis for the moral and social well-being of a society, as well as sever similar points. In addition, they depict in detail various laws concerning agriculture, much of the technique of ancient agriculture, the forms of ownership and possession of land, and, finally, the numerous rites and ceremonies connected with agriculture”.It was not until later, often in the mid to late 20th century, that rural sociology as a systematic branch of academia and study appeared in Asia.
India
In India, the rise of rural sociology was, in part, due to the country’s gaining of their independence in 1947. The government needed rural sociology to aid in its understanding of “the problems of extreme poverty of the people, overpopulation and general under-development of the economy”. Studies focused on the changing nature of the role of towns, rural-urban actions since independence, rural change and what might be driving it, demographic research, rural development, and rural economies. In 1953, A. R. Desai published the first edition of Rural Sociology in India. The foreword of the book underlines the importance of understanding each aspect of society so that the Indian government could create “a uniform line of action for building a better social milieu”. Due to the popularity of Desai's work and the expansion of the study of rural sociology in India, second and third editions of Rural Sociology in India were published in 1959 and 1961 to better represent new study foci and methodologies in this emerging field. Other popular researchers during the mid-20th century include S. C. Dube, M. N. Srinivas, and D. N. Majumdar. In India, rural sociological research and policies continued to be connected into the 21st century.
China
Before 1949, China’s rural sociological studies focused primarily on the rural class and power structures. Community studies by prominent sociologists like Fei Xiatong (Fei Hsiao-tung) were influenced by American rural sociology and were also popular in mid and early 20th century China. All sociology programs in China were terminated in 1952 by Mao Zedong. It was not until 1979, when the Chinese Sociological Association was reestablished, that sociological studies in China began again. Influences from American sociologists were welcomed during this time and continued to impact Chinese rural sociological studies into the 21st century. However, there have been pushes from contemporary Chinese rural sociologists like Yang Min and Xu Yong to reconsider this western lens.
Japan
Though rural sociology is thought to have an earlier origin in Japan than in the United States, it was not until the end of the 1930s that sociologists in the country were introduced to the methods and viewpoints of American rural sociologists. This introduction was primarily made by Eitarō Suzuki, who is considered one of the pioneers of Japanese rural and urban sociology. Other prominent Japanese rural sociological researchers of this time include Kitano Seiichi, Kizaemon Ariga, and Yozo Yamamoto. The rapid decrease in farming populations in Japan in 1955 shifted the focus of rural sociological studies in the mid 20th century to second jobs among farmers, farming cooperative associations, and the impact of community development policies on villages. Hiroyuki Torigoe of Kwansai Gakuin University was the leader of the Asian Rural Sociology working group, which was established in 1992 and later led to the development of the Asian Rural Sociological Society.
Mission statements
The mission statements of university departments of rural sociology have expanded to include more topics, such as sustainable development. For example, at the University of Missouri the mission is:
"The Department of Rural Sociology at the University of Missouri employs the theoretical and methodological tools of rural sociology to address challenges of the 21st century – preserving our natural resources, providing safe and nutritious food for an expanding population, adapting to climate changes, and maintaining sustainable rural livelihoods."
The University of Wisconsin set up one of the first departments of rural sociology. It has now dropped the term "rural" and changed its name to the "Department of Community and Environmental Sociology." Similarly, the Rural Sociology Program at the University of Kentucky has evolved into the. "Department of Community and Leadership Development," while transferring the graduate program in rural sociology to the Sociology Department. Cornell University's department of rural sociology has also changed its name to the department of Development Sociology.
Associations
Scholarly associations in rural sociology include:
The Rural Sociological Society (RSS), of the United States, was formed in 1937 after years of discussion as a spinoff of the American Sociological Society. It publishes the scholarly quarterly journal Rural Sociology. The full run of back issues is online from 1936 to 1989 through Cornell University Library's program of putting online core historical resources in rural sociology.
The European Society for Rural Sociology (ESRS) was founded in 1957. It says it is "the leading European association for scientists involved in the study of agriculture and fisheries, food production and consumption, rural development and change, rurality and cultural heritage, equality and inequality in rural society, and nature and environmental care."
The International Rural Sociology Association (IRSA) has as its mission, to "foster the development of rural sociology; further the application of sociological inquiry to the improvement of the quality of rural life; and provide a mechanism whereby rural sociologists can generate dialogue and useful exchange." It published the International Journal of Sociology of Agriculture and Food.
The International Association for Society and Natural Resources (IASNR) publishes the journal, Society & Natural Resources.
Asociación Latinoamericana de Sociologia Rural (ALASRU) as an organization founded in 1969, much of the rural sociology findings that come out of Latin America today is the work of the Asociación Latinoamericana de Sociologia Rural (Latin American Rural Sociological Association). With a combined effort of inter- and non-governmental organizations, the ALASRU aims to “promote rural development in the region; foster the dissemination and advancement of rural sociology; support the creation of national centres to carry out research in the field.”
The Asian Rural Sociology Association (ASRA) was established in 1996. Their mission is to “cultivate the development of the science of rural sociology, to extend the possible application of results of scientific inquiry to the improvement of the quality of rural life, and to exchange and generate meaningful scientific founding for the rural development in Asia. As a non-profit organization, ARSA strives for scientific and educational purposes only”. ASRA hosted their first council meeting in Seoul, Korea in 1997 from March 7 through the 9th. It was at this council meeting that the ARSA ratified the constitution and made the decision to hold the First International Conference of ARSA in Thailand in January 1999. The overarching theme of this first conference was “Globalization and Rural Social Change”; 200 participants from 11 countries attended, and 33 papers were presented and subsequently published in the society’s first volume of the Journal of Asian Rural Sociology. The society has hosted six total conferences, with the last one in 2018 focusing on food systems. The journal has continued to publish twice a year in January and July.
Journals
Several academic journals are published in the field of (or closely related to) rural sociology, including:
Agriculture and Human Values
Journal of Agrarian Change
Journal of Asian Rural Studies
Journal of Peasant Studies
Journal of Rural Studies
Rural Sociology
Society & Natural Resources
Sociologia Ruralis
See also
Food studies
Highland Clearances
Regional science
Rural development
Rural ghetto
Rural history
Sociology of disaster
References
Further reading
Brunner, E. D. The Growth of a Science: A Half-Century of Rural Sociological Research in the United States (Harper & Brothers, 1957).
Friedland, W. H. "The End of Rural Society and the Future of Rural Sociology." Rural Sociology (1982) 47(4): 589–608.
Desai, A.I. Rural Sociology in India (1978) online
Desai, Akshaya R. Introduction to Rural Sociology In India (1953) online , with reading from scholars
Goreham, Gary A. ed. The Encyclopedia of Rural America: The Land and People (2 Volume, 2nd ed. 2008), 1341pp
Hanson, Victor Davis. The Other Greeks: The Family Farm and the Agrarian Roots of Western Civilization (1999) excerpt and text search
Nelson, L. Rural Sociology: Its Origins and Growth in the United States (University of Minnesota Press, 1969).
Rani, Asha and Gajanafar Alam. Encyclopaedia of Urban & Rural Sociology : Social & Psychological Behaviour (3 Vol, 2012)
Smith, Suzanne. "The Institutional and Intellectual Origins of Rural Sociology" (Paper for 2011 Rural Sociology Assn. meeting) online
Sorokin, Pitirim A., Carle Zimmerman and Charles Galpin. A Systematic Source Book In Rural Sociology (3 vol 1931) excerpt and text search v 1; world perspective
Sorokin, Pitirim A. and C. C. Zimmerman Principles of Rural-Urban Sociology (1929), world perspective
Thomas, William I., and Florian Znaniecki. The Polish Peasant in Europe and America (2 vol. 1918); classic sociological study; complete text online free
Wyman, Andrea. Rural women teachers in the United States (1997) online
External links
European Society for Rural Sociology
Rural Sociological Society
Rural Sociology back issues, 1938-1989 |
journal of environmental management | The Journal of Environmental Management is a semi-monthly peer-reviewed scientific journal covering research on environmental science and quality that was established in 1973. It is published by Elsevier and the editors-in-chief are Raf Dewil (KU Leuven), Jason Evans (Stetson University), and Lixiao Zhang (Beijing Normal University).
History
The journal absorbed Advances in Environmental Research which was published between 1997 and 2004. The open access journal Environmental Challenges, published since 2020, is a companion journal.
Abstracting and indexing
The journal is abstracted and indexed in:
According to the Journal Citation Reports, the journal has a 2021 impact factor of 8.910, ranking it 34th out of 279 journals in the category "Environmental Sciences".
References
External links
Official website |
agriculture in india | The history of agriculture in India dates back to the Neolithic period. India ranks second worldwide in farm outputs. As per the Indian economic survey 2020 -21, agriculture employed more than 50% of the Indian workforce and contributed 20.2% to the country's GDP.In 2016, agriculture and allied sectors like animal husbandry, forestry and fisheries accounted for 17.5% of the GDP (gross domestic product) with about 41.49% of the workforce in 2020. India ranks first in the world with highest net cropped area followed by US and China. The economic contribution of agriculture to India's GDP is steadily declining with the country's broad-based economic growth. Still, agriculture is demographically the broadest economic sector and plays a significant role in the overall socio-economic fabric of India.
The total agriculture commodities export was US$3.50 billion in March - June 2020. India exported $38 billion worth of agricultural products in 2013, making it the seventh-largest agricultural exporter worldwide and the sixth largest net exporter. Most of its agriculture exports serve developing and least developed nations. Indian agricultural/horticultural and processed foods are exported to more than 120 countries, primarily to the Japan, Southeast Asia, SAARC countries, the European Union and the United States.
Definition of farmer
Indian farmers are people who grow crops as a profession. Various government estimates (Census, Agricultural Census, National Sample Survey assessments, and Periodic Labour Force Surveys) give a different number of farmers in the country ranging from 37 million to 118 million as per the different definitions. Some definitions take in to account the number of holdings as compared to the number of farmers. Other definitions take into account possession of land, while others try to delink land ownership from the definition of a farmer. Other terms also used include 'cultivator'.India's National Policy for Farmers 2007 defines farmer as:
For the purpose of this Policy, the term “FARMER” will refer to a person actively engaged in the economic and/or livelihood activity of growing crops and producing other primary agricultural commodities and will include all agricultural operational holders, cultivators, agricultural labourers, sharecroppers, tenants, poultry and livestock rearers, fishers, beekeepers, gardeners, pastoralists, non-corporate planters and planting labourers, as well as persons engaged in various farmingrelated occupations such as sericulture, vermiculture, and agro-forestry. The term will also include tribal families / persons engaged in shifting cultivation and in the collection, use and sale of timber and non-timber forest produce.
However this definition has not been adopted.
Overview
As per the 2014 FAO world agriculture statistics India is the world's largest producer of many fresh fruits like banana, mango, guava, papaya, lemon and vegetables like chickpea, okra and milk, major spices like chili pepper, ginger, fibrous crops such as jute, staples such as millets and castor oil seed. India is the second largest producer of wheat and rice, the world's major food staples.India is currently the world's second largest producer of several dry fruits, agriculture-based textile raw materials, roots and tuber crops, pulses, farmed fish, eggs, coconut, sugarcane and numerous vegetables. India is ranked under the world's five largest producers of over 80% of agricultural produce items, including many cash crops such as coffee and cotton, in 2010. India is one of the world's five largest producers of livestock and poultry meat, with one of the fastest growth rates, as of 2011.One report from 2008 claimed that India's population is growing faster than its ability to produce rice and wheat. While other recent studies claim that India can easily feed its growing population, plus produce wheat and rice for global exports, if it can reduce food staple spoilage/wastage, improve its infrastructure and raise its farm productivity like those achieved by other developing countries such as Brazil and China.In fiscal year ending June 2011, with a normal monsoon season, Indian agriculture accomplished an all-time record production of 85.9 million tonnes of wheat, a 6.4% increase from a year earlier. Rice output in India hit a new record at 95.3 million tonnes, a 7% increase from the year earlier. Lentils and many other food staples production also increased year over year. Indian farmers, thus produced about 71 kilograms of wheat and 80 kilograms of rice for every member of Indian population in 2011. The per capita supply of rice every year in India is now higher than the per capita consumption of rice every year in Japan.India exported $39 billion worth of agricultural products in 2013, making it the seventh largest agricultural exporter worldwide, and the sixth largest net exporter. This represents explosive growth, as in 2004 net exports were about $5 billion. India is the fastest growing exporter of agricultural products over a 10-year period, its $39 billion of net export is more than double the combined exports of the European Union (EU-28). It has become one of the world's largest supplier of rice, cotton, sugar and wheat. India exported around 2 million metric tonnes of wheat and 2.1 million metric tonnes of rice in 2011 to Africa, Nepal, Bangladesh and other regions around the world.Aquaculture and catch fishery is amongst the fastest growing industries in India. Between 1990 and 2010, the Indian fish capture harvest doubled, while aquaculture harvest tripled. In 2008, India was the world's sixth largest producer of marine and freshwater capture fisheries and the second largest aquaculture farmed fish producer. India exported 600,000 metric tonnes of fish products to nearly half of the world's countries. Though the available nutritional standard is 100% of the requirement, India lags far behind in terms of quality protein intake at 20% which is to be tackled by making available protein rich food products such as eggs, meat, fish, chicken etc. at affordable pricesIndia has shown a steady average nationwide annual increase in the mass-produced per hectare for some agricultural items, over the last 60 years. These gains have come mainly from India's green revolution, improving road and power generation infrastructure, knowledge of gains and reforms. Despite these recent accomplishments, agriculture has the potential for major productivity and total output gains, because crop yields in India are still just 30% to 60% of the best sustainable crop yields achievable in the farms of developed and other developing countries. Additionally, post harvest losses due to poor infrastructure and unorganised retail, caused India to experience some of the highest food losses in the world.
One of India's major agricultural products, rice, is suffering as a result of shifting monsoon patterns. States in the East and Northeast of the country (Uttar Pradesh, Bihar, and Odisha), have experienced high temperatures and insufficient rainfall in 2022, in contrast to Central and Southern India, which has experienced excessive rain in recent months, resulting in flooding in the Southern states of Kerala, Karnataka, and Madhya Pradesh.The rice crop this season is therefore anticipated to decrease by roughly 6.77 million tonnes to 104.99 million, according to India's ministry of agriculture.
History
Vedic literature provides some of the earliest written record of agriculture in India. Rigveda hymns, for example, describes ploughing, fallowing, irrigation, fruit and vegetable cultivation. Other historical evidence suggests rice and cotton were cultivated in the Indus Valley, and ploughing patterns from the Bronze Age have been excavated at Kalibangan in Rajasthan. Bhumivargaha, an Indian Sanskrit text, suggested to be 2500 years old, classifies agricultural land into 12 categories: urvara (fertile), ushara (barren), maru (desert), aprahata (fallow), shadvala (grassy), pankikala (muddy), jalaprayah (watery), kachchaha (contiguous to water), sharkara (full of pebbles and pieces of limestone), sharkaravati (sandy), nadimatruka (watered from a river), and devamatruka (rainfed). Some archaeologists believe that rice was a domesticated crop along the banks of the river Ganges in the sixth millennium BC. So were species of winter cereals (barley, oats, and wheat) and legumes (lentil and chickpea) grown in northwest India before the sixth millennium BC. Other crops cultivated in India 3000 to 6000 years ago, include sesame, linseed, safflower, mustard, castor, mung bean, black gram, horse gram, pigeon pea, field pea, grass pea (khesari), fenugreek, cotton, jujube, grapes, dates, jack fruit, mango, mulberry, and black plum. Indians might have domesticated buffalo (the river type) 5000 years ago.According to some scientists agriculture was widespread in the Indian peninsula, 10000–3000 years ago, well beyond the fertile plains of the north. For example, one study reports 12 sites in the southern Indian states of Tamil Nadu, Andhra Pradesh and Karnataka providing clear evidence of agriculture of pulses Vigna radiata and Macrotyloma uniflorum, millet-grasses (Brachiaria ramosa and Setaria verticillata), wheats (Triticum dicoccum, Triticum durum/aestivum), barley (Hordeum vulgare), hyacinth bean (Lablab purpureus), sorghum (Sorghum bicolor), pearl millet (Pennisetum glaucum), finger millet (Eleusine coracana), cotton (Gossypium sp.), linseed (Linum sp.), as well as gathered fruits of Ziziphus and two Cucurbitaceae.Some claim Indian agriculture began by 9000 BC as a result of early cultivation of plants, and domestication of crops. Settled life soon followed with implements and techniques being developed for agriculture. Double monsoons led to two harvests being reaped in one year. Indian products soon reached trading networks and foreign crops were introduced. Plants and animals—considered esses "reeds that produce honey without bees" being grown. These were locally called साखर, (Sākhara). On their return journey soldiers carried the "honey bearing reeds," thus spreading sugar and sugarcane agriculture. People in India had invented, by about 500 BC, the process to produce sugar crystals. In the local language, these crystals were called khanda (खण्ड), which is the source of the word candy.Before the 18th century, cultivation of sugarcane was largely confined to India. A few merchants began to trade in sugar – a luxury and an expensive spice in Europe until the 18th century. Sugar became widely popular in 18th-century Europe, then graduated to become a human necessity in the 19th century all over the world. Sugarcane plantations, just like cotton farms, became a major driver of large and forced human migrations in the 19th century and early 20th century – of people from Africa and from India, both in millions – influencing the ethnic mix, political conflicts and cultural evolution of Caribbean, South American, Indian Ocean and Pacific Island nations.The history and past accomplishments of Indian agriculture thus influenced, in part, colonialism, slavery and slavery-like indentured labour practices in the new world, Caribbean wars and world history in 18th and 19th centuries.
Indian agriculture after independence
Despite some stagnation during the later modern era the independent Republic of India was able to develop a comprehensive agricultural programme.In the years since its independence, India has made immense progress towards food security. Indian population has tripled, and food-grain production more than quadrupled. There has been a substantial increase in available food-grain per capita.
Before the mid-1960s, India relied on imports and food aid to meet domestic requirements. However, two years of severe drought in 1965 and 1966 convinced India to reform its agricultural policy and that it could not rely on foreign aid and imports for food security. India adopted significant policy reforms focused on the goal of food grain self-sufficiency. This ushered in India's Green Revolution. It began with the decision to adopt superior yielding, disease resistant wheat varieties in combination with better farming knowledge to improve productivity. The state of Punjab led India's green revolution and earned the distinction of being the country's breadbasket.The initial increase in production was centred on the irrigated areas of the states of Punjab, Haryana and western Uttar Pradesh. With the farmers and the government officials focusing on farm productivity and knowledge transfer, India's total food grain production soared. A hectare of Indian wheat farm that produced an average of 0.8 tonnes in 1948, produced 4.7 tonnes of wheat in 1975 from the same land. Such rapid growth in farm productivity enabled India to become self-sufficient by the 1970s. It also empowered the smallholder farmers to seek further means to increase food staples produced per hectare. By 2000, Indian farms were adopting wheat varieties capable of yielding 6 tonnes of wheat per hectare.
With agricultural policy success in wheat, India's Green Revolution technology spread to rice. However, since irrigation infrastructure was very poor, Indian farmers innovated with tube-wells, to harvest ground water. When gains from the new technology reached their limits in the states of initial adoption, the technology spread in the 1970s and 1980s to the states of eastern India — Bihar, Odisha and West Bengal. The lasting benefits of the improved seeds and new technology extended principally to the irrigated areas which account for about one-third of the harvested crop area. In the 1980s, Indian agriculture policy shifted to "evolution of a production pattern in line with the demand pattern" leading to a shift in emphasis to other agricultural commodities like oilseed, fruit and vegetables. Farmers began adopting improved methods and technologies in dairying, fisheries and livestock, and meeting the diversified food needs of a growing population.
As with rice, the lasting benefits of improved seeds and improved farming technologies now largely depends on whether India develops infrastructure such as irrigation network, flood control systems, reliable electricity production capacity, all-season rural and urban highways, cold storage to prevent spoilage, modern retail, and competitive buyers of produce from Indian farmers. This is increasingly the focus of Indian agriculture policy.
India ranks 74 out of 113 major countries in terms of food security index. India's agricultural economy is undergoing structural changes. Between 1970 and 2011, the GDP share of agriculture has fallen from 43% to 16%. This isn't because of reduced importance of agriculture or a consequence of agricultural policy; rather, it is largely due to the rapid economic growth in services, industrial output, and non-agricultural sectors in India between 2000 and 2010.
Agricultural scientist MS Swaminathan has played a vital role in the green revolution. In 2013, NDTV named him one of 25 living legends of India for outstanding contributions to agriculture and making India a food-sovereign country.
Two states, Sikkim and Kerala have planned to shift fully to organic farming by 2015 and 2016 respectively.
Rates of electricity usage for agricultural purposes have been discussed extensively over the years.
Irrigation
Indian irrigation infrastructure includes a network of major and minor canals from rivers, groundwater well-based systems, tanks, and other rainwater harvesting projects for agricultural activities. Of these, the groundwater system is the largest. Of the 160 million hectares of cultivated land in India, about 39 million hectare can be irrigated by groundwater wells and an additional 22 million hectares by irrigation canals. In 2010, only about 35% of agricultural land in India was reliably irrigated. About 2/3rd cultivated land in India is dependent on monsoons. The improvements in irrigation infrastructure in the last 50 years have helped India improve food security, reduce dependence on monsoons, improve agricultural productivity and create rural job opportunities. Dams used for irrigation projects have helped provide drinking water to a growing rural population, control flood and prevent drought-related damage to agriculture. However, free electricity and attractive minimum support price for water intensive crops such as sugarcane and rice have encouraged ground water mining leading to groundwater depletion and poor water quality. A news report in 2019 states that more than 60% of the water available for farming in India is consumed by rice and sugar, two crops that occupy 24% of the cultivable area.
Output
As of 2011, India had a large and diverse agricultural sector, accounting, on average, for about 16% of GDP and 10% of export earnings. India's arable land area of 159.7 million hectares (394.6 million acres) is the second largest in the world, after the United States. Its gross irrigated crop area of 82.6 million hectares (215.6 million acres) is the largest in the world. India is among the top three global producers of many crops, including wheat, rice, pulses, cotton, peanuts, fruits and vegetables. Worldwide, as of 2011, India had the largest herds of buffalo and cattle, is the largest producer of milk and has one of the largest and fastest growing poultry industries.
Major products and yields
The following table presents the 20 most important agricultural products in India, by economic value, in 2009. Included in the table is the average productivity of India's farms for each produce. For context and comparison, included is the average of the most productive farms in the world and name of country where the most productive farms existed in 2010. The table suggests India has large potential for further accomplishments from productivity increases, in increased agricultural output and agricultural incomes.
In 2019, as per Food and Agriculture Organization Corporate Statistical Database (FAOSTAT) data, India produces various agriculture products in following values:
In addition to growth in total output, agriculture in India has shown an increase in average agricultural output per hectare in last 60 years. The table below presents average farm productivity in India over three farming years for some crops. Improving road and power generation infrastructure, knowledge gains and reforms has allowed India to increase farm productivity between 40% and 500% over 40 years. India's recent accomplishments in crop yields while being impressive, are still just 30% to 60% of the best crop yields achievable in the farms of developed as well as other developing countries. Additionally, despite these gains in farm productivity, losses after harvest due to poor infrastructure and unorganised retail cause India to experience some of the highest food losses in the world.
World's largest producer
The Statistics Office of the Food and Agriculture Organization reported that, per final numbers for 2009, India had grown to become the world's largest producer of the following agricultural products:
Per final numbers for 2009, India is the world's second largest producer of the following agricultural products:
In 2009, India was the world's third largest producer of eggs, oranges, coconuts, tomatoes, peas and beans.India and China are competing to establish the world record on rice yields. Yuan Longping of China National Hybrid Rice Research and Development Centre set a world record for rice yield in 2010 at 19 tonnes per hectare in a demonstration plot. In 2011, this record was surpassed by an Indian farmer, Sumant Kumar, with 22.4 tonnes per hectare in Bihar, also in a demonstration plot. These farmers claim to have employed newly developed rice breeds and system of rice intensification (SRI), a recent innovation in farming. The claimed Chinese and Indian yields have yet to be demonstrated on 7 hectare farm lots and that these are reproducible over two consecutive years on the same farm.
Horticulture
The total production and economic value of horticultural produce, such as fruits, vegetables and nuts has doubled in India over the 10-year period from 2002 to 2012. In 2012, the production from horticulture exceeded grain output for the first time. The total horticulture produce reached 277.4 million metric tonnes in 2013, making India the second largest producer of horticultural products after China. Of this, India in 2013 produced 81 million tonnes of fruits, 162 million tonnes of vegetables, 5.7 million tonnes of spices, 17 million tonnes of nuts and plantation products (cashew, cacao, coconut, etc.), 1 million tonnes of aromatic horticulture produce and 1.7 million tonnes of flowers (7.6 billion cut flowers).
During the 2013 fiscal year, India exported horticulture products worth ₹14,365 crore (US$1.8 billion), nearly double the value of its 2010 exports. Along with these farm-level gains, the losses between farm and consumer increased and are estimated to range between 51 and 82 million metric tonnes a year.
Organic agriculture
Organic agriculture has fed India for centuries and it is again a growing sector in India. Organic production offers clean and green production methods without the use of synthetic fertilisers and pesticides and it achieves a premium price in the market place. India has 6,50,000 organic producers, which is more than any other country. India also has 4 million hectares of land certified as organic wildculture, which is third in the world (after Finland and Zambia). As non availability of edible biomass is impeding the growth of animal husbandry in India, organic production of protein rich cattle, fish and poultry feed using biogas /methane/natural gas by cultivating Methylococcus capsulatus bacteria with tiny land and water foot print is a solution for ensuring adequate protein rich food to the population.
Agriculture based cooperatives
India has seen a huge growth in cooperative societies, mainly in the farming sector, since 1947 when the country gained independence from Britain. The country has networks of cooperatives at the local, regional, state and national levels that assist in agricultural marketing. The commodities that are mostly handled are food grains, jute, cotton, sugar, milk, fruit and nuts Support by the state government led to more than 25,000 cooperatives being set up by the 1990s in the state of Maharashtra.
Sugar industry
Most of the sugar production in India takes place at mills owned by local cooperative societies. The members of the society include all farmers, small and large, supplying sugarcane to the mill. Over the last fifty years, the local sugar mills have played a crucial part in encouraging political participation and as a stepping stone for aspiring politicians. This is particularly true in the state of Maharashtra where a large number of politicians belonging to the Congress party or NCP had ties to sugar cooperatives from their local area and has created a symbiotic relationship between the sugar factories and local politics. However, the policy of "profits for the company but losses to be borne by the government", has made a number of these operations inefficient.
Marketing
As with sugar, cooperatives play a significant part in the overall marketing of fruit and vegetables in India. Since the 1980s, the amount of produce handled by Cooperative societies has increased exponentially. Common fruit and vegetables marketed by the societies include bananas, mangoes, grapes, onions and many others.
Dairy industry
Dairy farming based on the Amul Pattern, with a single marketing cooperative, is India's largest self-sustaining industry and its largest rural employment provider. Successful implementation of the Amul model has made India the world's largest milk producer. Here small, marginal farmers with a couple or so heads of milch cattle queue up twice daily to pour milk from their small containers into the village union collection points. The milk after processing at the district unions is then marketed by the state cooperative federation nationally under the Amul brand name, India's largest food brand. With the Anand pattern three-fourth of the price paid by the mainly urban consumers goes into the hands of millions of small dairy farmers, who are the owners of the brand and the cooperative.
Banking and rural credit
Cooperative banks play a great part in providing credit in rural parts of India. Just like the sugar cooperatives, these institutions serve as the power base for local politicians.
Problems
"Slow agricultural growth is a concern for policymakers as some two-thirds of India's people depend on rural employment for a living. Current agricultural practices are neither economically nor environmentally sustainable and India's yields for many agricultural commodities are low. Poorly maintained irrigation systems and almost universal lack of good extension services are among the factors responsible. Farmers' access to markets is hampered by poor roads, rudimentary market infrastructure, and excessive regulation."
"With a population of just over 1.3 billion, India is the world's largest democracy. In the past decade, the country has witnessed accelerated economic growth, emerged as a global player with the world's fourth largest economy in purchasing power parity terms, and made progress towards achieving most of the Millennium Development Goals. India's integration into the global economy has been accompanied by impressive economic growth that has brought significant economic and social benefits to the country. Nevertheless, disparities in income and human development are on the rise. Preliminary estimates suggest that in 2009–10 the combined all India poverty rate was 32 % compared to 37 % in 2004–05. Going forward, it will be essential for India to build a productive, competitive, and diversified agricultural sector and facilitate rural, non-farm entrepreneurship and employment. Encouraging policies that promote competition in agricultural marketing will ensure that farmers receive better prices."
A 2003 analysis of India's agricultural growth from 1970 to 2001 by the Food and Agriculture Organization identified systemic problems in Indian agriculture. For food staples, the annual growth rate in production during the six-year segments 1970–76, 1976–82, 1982–88, 1988–1994, 1994–2000 were found to be respectively 2.5, 2.5, 3.0, 2.6, and 1.8% per annum. Corresponding analyses for the index of total agricultural production show a similar pattern, with the growth rate for 1994–2000 attaining only 1.5% per annum.The biggest problem of farmers is the low price for their farm produce. A recent study showed that proper pricing based on energy of production and equating farming wages to Industrial wages may be beneficial for the farmers.
Infrastructure
India has very poor rural roads affecting timely supply of inputs and timely transfer of outputs from Indian farms. Irrigation systems are inadequate, leading to crop failures in some parts of the country because of lack of water. In other areas regional floods, poor seed quality and inefficient farming practices, lack of cold storage and harvest spoilage cause over 30% of farmer's produce going to waste, lack of organised retail and competing buyers thereby limiting Indian farmer's ability to sell the surplus and commercial crops.
The Indian farmer receives just 10% to 23% of the price the Indian consumer pays for exactly the same produce, the difference going to losses, inefficiencies and middlemen. Farmers in developed economies of Europe and the United States receive 64% to 81%.
Productivity
Although India has attained self-sufficiency in food staples, the productivity of its farms is below that of Brazil, the United States, France and other nations. Indian wheat farms, for example, produce about a third of the wheat per hectare per year compared to farms in France. Rice productivity in India was less than half that of China. Other staples productivity in India is similarly low. Indian total factor productivity growth remains below 2% per annum; in contrast, China's total factor productivity growths is about 6% per annum, even though China also has smallholding farmers. Several studies suggest India could eradicate its hunger and malnutrition and be a major source of food for the world by achieving productivity comparable with other countries.By contrast, Indian farms in some regions post the best yields, for sugarcane, cassava and tea crops.Crop yields vary significantly between Indian states. Some states produce two to three times more grain per acre than others.
As the map shows, the traditional regions of high agricultural productivity in India are the north west (Punjab, Haryana and Western Uttar Pradesh), coastal districts on both coasts, West Bengal and Tamil Nadu. In recent years, the states of Madhya Pradesh, Jharkhand, Chhattisgarh in central India and Gujarat in the west have shown rapid agricultural growth.The table compares the statewide average yields for a few major agricultural crops in India, for 2001–2002.
Crop yields for some farms in India are within 90% of the best achieved yields by farms in developed countries such as the United States and in European Union. No single state of India is best in every crop. Tamil Nadu achieved highest yields in rice and sugarcane, Haryana in wheat and coarse grains, Karnataka in cotton, Bihar in pulses, while other states do well in horticulture, aquaculture, flower and fruit plantations. These differences in agricultural productivity are a function of local infrastructure, soil quality, micro-climates, local resources, farmer knowledge and innovations.The Indian food distribution system is highly inefficient. Movement of agricultural produce is heavily regulated, with inter-state and even inter-district restrictions on marketing and movement of agricultural goods.One study suggests Indian agricultural policy should best focus on improving rural infrastructure primarily in the form of irrigation and flood control infrastructure, knowledge transfer of better yielding and more disease resistant seeds. Additionally, cold storage, hygienic food packaging and efficient modern retail to reduce waste can improve output and rural incomes.The low productivity in India is a result of the following factors:
The average size of land holdings is very small (less than 2 hectares) and is subject to fragmentation due to land ceiling acts, and in some cases, family disputes. Such small holdings are often over-manned, resulting in disguised unemployment and low productivity of labour. Some reports claim smallholder farming may not be cause of poor productivity, since the productivity is higher in China and many developing economies even though China smallholder farmers constitute over 97% of its farming population. A Chinese smallholder farmer is able to rent his land to larger farmers, China's organised retail and extensive Chinese highways are able to provide the incentive and infrastructure necessary to its farmers for sharp increases in farm productivity.
Adoption of modern agricultural practices and use of technology is inadequate in comparison with Green Revolution methods and technologies, hampered by ignorance of such practices, high costs and impracticality in the case of small land holdings.
According to the World Bank, Indian branch's Priorities for Agriculture and Rural Development, India's large agricultural subsidies are hampering productivity-enhancing investment. This evaluation is based largely on a productivity agenda and does not take any ecological implications into account. According to a neo-liberal view, over-regulation of agriculture has increased costs, price risks and uncertainty because the government intervenes in labour, land, and credit markets. India has inadequate infrastructure and services. The World Bank also says that the allocation of water is inefficient, unsustainable and inequitable. The irrigation infrastructure is deteriorating. The overuse of water is being covered by over-pumping aquifers but, as these are falling by one foot of groundwater each year, this is a limited resource. The Intergovernmental Panel on Climate Change released a report that food security may be a big problem in the region post 2030.
Illiteracy, general socio-economic backwardness, slow progress in implementing land reforms and inadequate or inefficient finance and marketing services for farm produce.
Inconsistent government policy. Agricultural subsidies and taxes are often changed without notice for short term political ends.
Irrigation facilities are inadequate, as revealed by the fact that only 52.6% of the land was irrigated in 2003–04, which result in farmers still being dependent on rainfall, specifically the monsoon season. A good monsoon results in a robust growth for the economy, while a poor monsoon leads to a sluggish growth. Farm credit is regulated by NABARD, which is the statutory apex agent for rural development in the subcontinent. At the same time, over-pumping made possible by subsidised electric power is leading to an alarming drop in aquifer levels.
A third of all food that is produced rots due to inefficient supply chains and the use of the "Walmart model" to improve efficiency is blocked by laws against foreign investment in the retail sector.
Farmer suicides
In 2012, the National Crime Records Bureau of India reported 13,754 farmer suicides. Farmer suicides account for 11.2% of all suicides in India. Activists and scholars have offered a number of conflicting reasons for farmer suicides, such as monsoon failure, high debt burdens, genetically modified crops, government policies, public mental health, personal issues and family problems.
Marketing
Agromarketing is poorly developed in India.
Diversion of agricultural land for non-agricultural purpose
Indian National Policy for Farmers of 2007 stated that "prime farmland must be conserved for agriculture except under exceptional circumstances, provided that the agencies that are provided with agricultural land for non-agricultural projects should compensate for treatment and full development of equivalent degraded or wastelands elsewhere". The policy suggested that, as far as possible, land with low farming yields or that was not farmable should be earmarked for non-agricultural purposes such as construction, industrial parks and other commercial development.Amartya Sen offered a counter viewpoint, stating that "prohibiting the use of agricultural land for commercial and industrial development is ultimately self-defeating." He stated that agricultural land may be better suited for non-agriculture purposes if industrial production could generate many times more than the value of the product produced by agriculture. Sen suggested India needed to bring productive industry everywhere, wherever there are advantages of production, market needs and the locational preferences of managers, engineers, technical experts as well as unskilled labour because of education, healthcare and other infrastructure. He stated that instead of government controlling land allocation based on soil characteristics, the market economy should determine productive allocation of land.Please check the validity of the source listed above.
Climate change
Initiatives
The required level of investment for the development of marketing, storage and cold storage infrastructure is estimated to be huge. The government has not been able to implement schemes to raise investment in marketing infrastructure. Among these schemes are 'Construction of Rural Godowns', 'Market Research and Information Network', and 'Development / Strengthening of Agricultural Marketing Infrastructure, Grading and Standardisation'.The Indian Council of Agricultural Research (ICAR), established in 1905, was responsible for the search leading to the "Indian Green Revolution" of the 1970s. The ICAR is the apex body in agriculture and related allied fields, including research and education. The Union Minister of Agriculture is the president of the ICAR. The Indian Agricultural Statistics Research Institute develops new techniques for the design of agricultural experiments, analyses data in agriculture, and specialises in statistical techniques for animal and plant breeding.Recently (May 2016) the government of India has set up the Farmers Commission to completely evaluate the agriculture programme. Its recommendations have had a mixed reception.In November 2011, India announced major reforms in organised retail. These reforms would include logistics and retail of agricultural produce. The announcement led to major political controversy. The reforms were placed on hold by the government in December 2011.In the summer of 2012, the subsidised electricity for pumping, which has caused an alarming drop in aquifer levels, put additional strain on the country's electrical grid due to a 19% drop in monsoon rains and may have contributed to a blackout across much of the country. In response the state of Bihar offered farmers over $100 million in subsidised diesel to operate their pumps.In 2015, Narendra Modi announced to double farmer's income by 2022.Startups with niche technology and new business models are working to solve problems in Indian agriculture and its marketing. Kandawale is one such e-commerce website which sells Indian red onions to bulk users direct from farmers, reducing unnecessary cost escalations.
Agriculture and Indian economy
The contributions of agriculture in the Indian economy have been increasing over the years. According to the economic survey, the share of agriculture in gross domestic product (GDP) reached almost 20% for the first time in 17 years, making a sole bright spot in performance during financial year 2020–2021.Modern farms and agriculture operations have changed over the years primarily because of advancements in technology, including sensors, devices, machines, and information technology.Personalized e-commerce stores and market places have brought farming products like fertilizers, seeds, machines and equipment that help farmers grow quality products. Educational portals let farmers know innovative things about farming that increase the contributions of agriculture to the economy.
Organic farming
Paramparagat Krishi Vikas Yojana (PKVY) was launched in 2015 by the Narendra Modi regime to promote organic farming, under which farmers form organic farming clusters of 50 or more farmers with a minimum total area of 50 acres to share organic methods using traditional sustainable methods, costs, and marketing, etc. It initially aimed to have 10,000 clusters by 2018 with at least 500,000 acres under organic farming and government "cover the certification costs and promote organic farming through the use of traditional resources." Government provides INR 20,000 per acre benefit over three years.Other techniques of organic farming like zero budget natural farming (ZBNF) have been implemented by many small-scale farmers in Wayanad, Kerela. In this process they implement more natural and ecological methods of farming that decrease or completely cease use of pesticides and damaging chemicals, allievating the damage that, "Decades of overuse of chemicals and mono cropping and lack of management of soil fertility have depleted the formerly fertile forest-land" in the area.
Along with progression with organic farming methods, new technologies in the form of moisture sensors and artificial intelligence are also being implemented in the Indian farming sector. Farmers are using moisture sensors to ensure that different crops have the exact amount of water that they need, which ensures that farmers can maximise crop yield. Along with this, artificial intelligence techniques are being implemented in food processing plants across India, where "AI provides more efficient ways to produce, harvest, and sell crops products as well as an emphasis on checking defective crops and improving the potential for healthy crop production" that further helps maximise crop yield as Rayda Ayed describes in her research on the impact of artificial intelligence in India.
Government schemes
2020 Indian agriculture acts
Atal Bhujal Yojana
E-NAM for online agrimarketing
Gramin Bhandaran Yojana for local storage
Micro Irrigation Fund (MIF)
National Mission For Sustainable Agriculture (NMSA)
National Scheme on Fisheries Training and Extension
National Scheme on Welfare of Fishermen
Pradhan Mantri Kisan Samman Nidhi (PMKSN) for minimum support scheme
Pradhan Mantri Krishi Sinchai Yojana (PMKSY) for irrigation
Paramparagat Krishi Vikas Yojana (PKVY) for organic farming
Pradhan Mantri Fasal Bima Yojana (PMFBY) for crop insurance
Maps
See also
Bibliography
George A. Grierson (1885). Bihar Peasant Life. Bengal Secretariat Press, Calcutta.
References
Further reading
Agarwal, Ankit (2011), "Theory of Optimum Utilisation of Resources in agriculture during the Gupta Period", History Today 12, New Delhi, ISSN 2249-748X.
Akhilesh, K. B., and Kavitha Sooda. "A Study on Impact of Technology Intervention in the Field of Agriculture in India." in Smart Technologies (Springer, Singapore, 2020) pp. 373–385.
Bhagowalia, Priya, S. Kadiyala, and D. Headey. "Agriculture, income and nutrition linkages in India: Insights from a nationally representative survey." (2012). online
Bhan, Suraj, and U. K. Behera. "Conservation agriculture in India–Problems, prospects and policy issues." International Soil and Water Conservation Research 2.4 (2014): 1–12.
Bharti, N. (2018), "Evolution of agriculture finance in India: a historical perspective", Agricultural Finance Review, Vol. 78 No. 3, pp. 376–392. https://doi.org/10.1108/AFR-05-2017-0035
Brink, Lars. "Support to Agriculture in India in 1995-2013 and the Rules of the WTO." International Agricultural Trade Research Consortium (IATRC) Working Paper 14-01 (2014) online.
Brown, Trent. Farmers, Subalterns, and activists: social politics of sustainable agriculture in India (Cambridge University Press, 2018).
Chauhan, Bhagirath Singh, et al. "Global warming and its possible impact on agriculture in India." in Advances in agronomy (Academic Press, 2014) pp. 65–121.online
Chengappa, P. G. "Presidential Address: Secondary Agriculture: A Driver for Growth of Primary Agriculture in India." Indian Journal of Agricultural Economics 68.902-2016-66819 (2013): 1–19. online
Dev, S. Mahendra, Srijit Mishra, and Vijay Laxmi Pandey. "Agriculture in India: Performance, Challenges, and Opportunities." in A Concise Handbook of the Indian Economy in the 21st Century (Oxford University Press, 2014) pp. 321–350.
Goyal, S. & Prabha, & Rai, Dr & Singh, Shree Ram. Indian Agriculture and Farmers-Problems and Reforms. (2016)
Kekane Maruti Arjun. "Indian, Agriculture- Status, Importance and Role in Indian Economy," International Journal of Agriculture and Food Science Technology, ISSN 2249-3050, Volume 4, Number 4 (2013), pp. 343–346.
Kumar, Anjani, Krishna M. Singh, and Shradhajali Sinha. "Institutional credit to agriculture sector in India: Status, performance and determinants." Agricultural Economics Research Review 23.2 (2010): 253-264 online.
Manida, Mr M., and G. Nedumaran. "Agriculture In India: Information About Indian Agriculture & Its Importance." Aegaeum Journal, 8#3 (2020) online
Mathur, Archana S., Surajit Das, and Subhalakshmi Sircar. "Status of agriculture in India: trends and prospects." Economic and political weekly (2006): 5327-5336 online.
Nedumaran, Dr G. "E-Agriculture and Rural Development in India." (2020). online
Ramakumar, R. "Large‐scale Investments in Agriculture in India." IDS Bulletin 43 (2012): 92–103. online
Ramakumar, R. "Agriculture and the Covid-19 Pandemic: An Analysis with Special Reference to India." Review of Agrarian Studies 10.2369-2020-1856 (2020) online.
Saradhi, Byra Pardha, et al. "Significant Trends in the Digital Transformation of Agriculture in India." International Journal of Grid and Distributed Computing 13.1 (2020): 2703-2709 [2].
Sharma, Shalendra D. (1999), Development and Democracy in India, Lynne Rienner Publishers, pp. 125–, ISBN 978-1-55587-810-8
State of Indian Agriculture 2011–12. New Delhi: Government of India, Ministry of Agriculture, Department of Agriculture and Cooperation, March 2012
External links
Indian Agriculture. U.S. Library of Congress.
Indian Agriculture Data. Statistical information about Agriculture in India.
Government of India, Ministry of Agriculture, Department of Agriculture & Cooperation website
Indian Council for Agricultural Research Home Page.
Principal crops of India and problems with Indian agriculture A collection of statistics (from India Statistical Report, 2011) along with sections of this Wikipedia article and YouTube videos.
Brighter Green Policy Paper: Veg or NonVeg, India at a Crossroads A December 2011 policy paper analysing the forces behind the rising consumption and production of meat, eggs, and dairy products in India, and the effects on India's people, environment, animals, and the global climate.
Mukherji, Biman (28 October 2013). "India's farmers start to mechanise amid a labour shortage, increasing productivity. - WSJ.com". Wall Street Journal. Online.wsj.com. Retrieved 30 October 2013. |
biotechnology | Biotechnology is a multidisciplinary field that involves the integration of natural sciences and engineering sciences in order to achieve the application of organisms, cells, parts thereof and molecular analogues for products and services.The term biotechnology was first used by Károly Ereky in 1919, to refer to the production of products from raw materials with the aid of living organisms. The core principle of biotechnology involves harnessing biological systems and organisms, such as bacteria, yeast, and plants, to perform specific tasks or produce valuable substances.
Biotechnology had a significant impact on many areas of society, from medicine to agriculture to environmental science. One of the key techniques used in biotechnology is genetic engineering, which allows scientists to modify the genetic makeup of organisms to achieve desired outcomes. This can involve inserting genes from one organism into another, creating new traits or modifying existing ones.
Other important techniques used in biotechnology include tissue culture, which allows researchers to grow cells and tissues in the lab for research and medical purposes, and fermentation, which is used to produce a wide range of products such as beer, wine, and cheese.
The applications of biotechnology are diverse and have led to the development of essential products like life-saving drugs, biofuels, genetically modified crops, and innovative materials. It has also been used to address environmental challenges, such as developing biodegradable plastics and using microorganisms to clean up contaminated sites.
Biotechnology is a rapidly evolving field with significant potential to address pressing global challenges and improve the quality of life for people around the world; however, despite its numerous benefits, it also poses ethical and societal challenges, such as questions around genetic modification and intellectual property rights. As a result, there is ongoing debate and regulation surrounding the use and application of biotechnology in various industries and fields.
Definition
The concept of biotechnology encompasses a wide range of procedures for modifying living organisms for human purposes, going back to domestication of animals, cultivation of the plants, and "improvements" to these through breeding programs that employ artificial selection and hybridization. Modern usage also includes genetic engineering, as well as cell and tissue culture technologies. The American Chemical Society defines biotechnology as the application of biological organisms, systems, or processes by various industries to learning about the science of life and the improvement of the value of materials and organisms, such as pharmaceuticals, crops, and livestock. As per the European Federation of Biotechnology, biotechnology is the integration of natural science and organisms, cells, parts thereof, and molecular analogues for products and services. Biotechnology is based on the basic biological sciences (e.g., molecular biology, biochemistry, cell biology, embryology, genetics, microbiology) and conversely provides methods to support and perform basic research in biology.
Biotechnology is the research and development in the laboratory using bioinformatics for exploration, extraction, exploitation, and production from any living organisms and any source of biomass by means of biochemical engineering where high value-added products could be planned (reproduced by biosynthesis, for example), forecasted, formulated, developed, manufactured, and marketed for the purpose of sustainable operations (for the return from bottomless initial investment on R & D) and gaining durable patents rights (for exclusives rights for sales, and prior to this to receive national and international approval from the results on animal experiment and human experiment, especially on the pharmaceutical branch of biotechnology to prevent any undetected side-effects or safety concerns by using the products). The utilization of biological processes, organisms or systems to produce products that are anticipated to improve human lives is termed biotechnology.By contrast, bioengineering is generally thought of as a related field that more heavily emphasizes higher systems approaches (not necessarily the altering or using of biological materials directly) for interfacing with and utilizing living things. Bioengineering is the application of the principles of engineering and natural sciences to tissues, cells, and molecules. This can be considered as the use of knowledge from working with and manipulating biology to achieve a result that can improve functions in plants and animals. Relatedly, biomedical engineering is an overlapping field that often draws upon and applies biotechnology (by various definitions), especially in certain sub-fields of biomedical or chemical engineering such as tissue engineering, biopharmaceutical engineering, and genetic engineering.
History
Although not normally what first comes to mind, many forms of human-derived agriculture clearly fit the broad definition of "utilizing a biotechnological system to make products". Indeed, the cultivation of plants may be viewed as the earliest biotechnological enterprise.
Agriculture has been theorized to have become the dominant way of producing food since the Neolithic Revolution. Through early biotechnology, the earliest farmers selected and bred the best-suited crops (e.g., those with the highest yields) to produce enough food to support a growing population. As crops and fields became increasingly large and difficult to maintain, it was discovered that specific organisms and their by-products could effectively fertilize, restore nitrogen, and control pests. Throughout the history of agriculture, farmers have inadvertently altered the genetics of their crops through introducing them to new environments and breeding them with other plants — one of the first forms of biotechnology.These processes also were included in early fermentation of beer. These processes were introduced in early Mesopotamia, Egypt, China and India, and still use the same basic biological methods. In brewing, malted grains (containing enzymes) convert starch from grains into sugar and then adding specific yeasts to produce beer. In this process, carbohydrates in the grains broke down into alcohols, such as ethanol. Later, other cultures produced the process of lactic acid fermentation, which produced other preserved foods, such as soy sauce. Fermentation was also used in this time period to produce leavened bread. Although the process of fermentation was not fully understood until Louis Pasteur's work in 1857, it is still the first use of biotechnology to convert a food source into another form.
Before the time of Charles Darwin's work and life, animal and plant scientists had already used selective breeding. Darwin added to that body of work with his scientific observations about the ability of science to change species. These accounts contributed to Darwin's theory of natural selection.For thousands of years, humans have used selective breeding to improve the production of crops and livestock to use them for food. In selective breeding, organisms with desirable characteristics are mated to produce offspring with the same characteristics. For example, this technique was used with corn to produce the largest and sweetest crops.In the early twentieth century scientists gained a greater understanding of microbiology and explored ways of manufacturing specific products. In 1917, Chaim Weizmann first used a pure microbiological culture in an industrial process, that of manufacturing corn starch using Clostridium acetobutylicum, to produce acetone, which the United Kingdom desperately needed to manufacture explosives during World War I.Biotechnology has also led to the development of antibiotics. In 1928, Alexander Fleming discovered the mold Penicillium. His work led to the purification of the antibiotic compound formed by the mold by Howard Florey, Ernst Boris Chain and Norman Heatley – to form what we today know as penicillin. In 1940, penicillin became available for medicinal use to treat bacterial infections in humans.The field of modern biotechnology is generally thought of as having been born in 1971 when Paul Berg's (Stanford) experiments in gene splicing had early success. Herbert W. Boyer (Univ. Calif. at San Francisco) and Stanley N. Cohen (Stanford) significantly advanced the new technology in 1972 by transferring genetic material into a bacterium, such that the imported material would be reproduced. The commercial viability of a biotechnology industry was significantly expanded on June 16, 1980, when the United States Supreme Court ruled that a genetically modified microorganism could be patented in the case of Diamond v. Chakrabarty. Indian-born Ananda Chakrabarty, working for General Electric, had modified a bacterium (of the genus Pseudomonas) capable of breaking down crude oil, which he proposed to use in treating oil spills. (Chakrabarty's work did not involve gene manipulation but rather the transfer of entire organelles between strains of the Pseudomonas bacterium).
The MOSFET (metal–oxide–semiconductor field-effect transistor) was invented by Mohamed M. Atalla and Dawon Kahng in 1959. Two years later, Leland C. Clark and Champ Lyons invented the first biosensor in 1962. Biosensor MOSFETs were later developed, and they have since been widely used to measure physical, chemical, biological and environmental parameters. The first BioFET was the ion-sensitive field-effect transistor (ISFET), invented by Piet Bergveld in 1970. It is a special type of MOSFET, where the metal gate is replaced by an ion-sensitive membrane, electrolyte solution and reference electrode. The ISFET is widely used in biomedical applications, such as the detection of DNA hybridization, biomarker detection from blood, antibody detection, glucose measurement, pH sensing, and genetic technology.By the mid-1980s, other BioFETs had been developed, including the gas sensor FET (GASFET), pressure sensor FET (PRESSFET), chemical field-effect transistor (ChemFET), reference ISFET (REFET), enzyme-modified FET (ENFET) and immunologically modified FET (IMFET). By the early 2000s, BioFETs such as the DNA field-effect transistor (DNAFET), gene-modified FET (GenFET) and cell-potential BioFET (CPFET) had been developed.A factor influencing the biotechnology sector's success is improved intellectual property rights legislation—and enforcement—worldwide, as well as strengthened demand for medical and pharmaceutical products to cope with an ageing, and ailing, U.S. population.Rising demand for biofuels is expected to be good news for the biotechnology sector, with the Department of Energy estimating ethanol usage could reduce U.S. petroleum-derived fuel consumption by up to 30% by 2030. The biotechnology sector has allowed the U.S. farming industry to rapidly increase its supply of corn and soybeans—the main inputs into biofuels—by developing genetically modified seeds that resist pests and drought. By increasing farm productivity, biotechnology boosts biofuel production.
Examples
Biotechnology has applications in four major industrial areas, including health care (medical), crop production and agriculture, non-food (industrial) uses of crops and other products (e.g., biodegradable plastics, vegetable oil, biofuels), and environmental uses.
For example, one application of biotechnology is the directed use of microorganisms for the manufacture of organic products (examples include beer and milk products). Another example is using naturally present bacteria by the mining industry in bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites contaminated by industrial activities (bioremediation), and also to produce biological weapons.
A series of derived terms have been coined to identify several branches of biotechnology, for example:
Bioinformatics (also called "gold biotechnology") is an interdisciplinary field that addresses biological problems using computational techniques, and makes the rapid organization as well as analysis of biological data possible. The field may also be referred to as computational biology, and can be defined as, "conceptualizing biology in terms of molecules and then applying informatics techniques to understand and organize the information associated with these molecules, on a large scale". Bioinformatics plays a key role in various areas, such as functional genomics, structural genomics, and proteomics, and forms a key component in the biotechnology and pharmaceutical sector.
Blue biotechnology is based on the exploitation of sea resources to create products and industrial applications. This branch of biotechnology is the most used for the industries of refining and combustion principally on the production of bio-oils with photosynthetic micro-algae.
Green biotechnology is biotechnology applied to agricultural processes. An example would be the selection and domestication of plants via micropropagation. Another example is the designing of transgenic plants to grow under specific environments in the presence (or absence) of chemicals. One hope is that green biotechnology might produce more environmentally friendly solutions than traditional industrial agriculture. An example of this is the engineering of a plant to express a pesticide, thereby ending the need of external application of pesticides. An example of this would be Bt corn. Whether or not green biotechnology products such as this are ultimately more environmentally friendly is a topic of considerable debate. It is commonly considered as the next phase of green revolution, which can be seen as a platform to eradicate world hunger by using technologies which enable the production of more fertile and resistant, towards biotic and abiotic stress, plants and ensures application of environmentally friendly fertilizers and the use of biopesticides, it is mainly focused on the development of agriculture. On the other hand, some of the uses of green biotechnology involve microorganisms to clean and reduce waste.
Red biotechnology is the use of biotechnology in the medical and pharmaceutical industries, and health preservation. This branch involves the production of vaccines and antibiotics, regenerative therapies, creation of artificial organs and new diagnostics of diseases. As well as the development of hormones, stem cells, antibodies, siRNA and diagnostic tests.
White biotechnology, also known as industrial biotechnology, is biotechnology applied to industrial processes. An example is the designing of an organism to produce a useful chemical. Another example is the using of enzymes as industrial catalysts to either produce valuable chemicals or destroy hazardous/polluting chemicals. White biotechnology tends to consume less in resources than traditional processes used to produce industrial goods.
"Yellow biotechnology" refers to the use of biotechnology in food production (food industry), for example in making wine (winemaking), cheese (cheesemaking), and beer (brewing) by fermentation. It has also been used to refer to biotechnology applied to insects. This includes biotechnology-based approaches for the control of harmful insects, the characterisation and utilisation of active ingredients or genes of insects for research, or application in agriculture and medicine and various other approaches.
Gray biotechnology is dedicated to environmental applications, and focused on the maintenance of biodiversity and the remotion of pollutants.
Brown biotechnology is related to the management of arid lands and deserts. One application is the creation of enhanced seeds that resist extreme environmental conditions of arid regions, which is related to the innovation, creation of agriculture techniques and management of resources.
Violet biotechnology is related to law, ethical and philosophical issues around biotechnology.
Dark biotechnology is the color associated with bioterrorism or biological weapons and biowarfare which uses microorganisms, and toxins to cause diseases and death in humans, livestock and crops.
Medicine
In medicine, modern biotechnology has many applications in areas such as pharmaceutical drug discoveries and production, pharmacogenomics, and genetic testing (or genetic screening). In 2021, nearly 40% of the total company value of pharmaceutical biotech companies worldwide were active in Oncology with Neurology and Rare Diseases being the other two big applications.
Pharmacogenomics (a combination of pharmacology and genomics) is the technology that analyses how genetic makeup affects an individual's response to drugs. Researchers in the field investigate the influence of genetic variation on drug responses in patients by correlating gene expression or single-nucleotide polymorphisms with a drug's efficacy or toxicity. The purpose of pharmacogenomics is to develop rational means to optimize drug therapy, with respect to the patients' genotype, to ensure maximum efficacy with minimal adverse effects. Such approaches promise the advent of "personalized medicine"; in which drugs and drug combinations are optimized for each individual's unique genetic makeup.
Biotechnology has contributed to the discovery and manufacturing of traditional small molecule pharmaceutical drugs as well as drugs that are the product of biotechnology – biopharmaceutics. Modern biotechnology can be used to manufacture existing medicines relatively easily and cheaply. The first genetically engineered products were medicines designed to treat human diseases. To cite one example, in 1978 Genentech developed synthetic humanized insulin by joining its gene with a plasmid vector inserted into the bacterium Escherichia coli. Insulin, widely used for the treatment of diabetes, was previously extracted from the pancreas of abattoir animals (cattle or pigs). The genetically engineered bacteria are able to produce large quantities of synthetic human insulin at relatively low cost. Biotechnology has also enabled emerging therapeutics like gene therapy. The application of biotechnology to basic science (for example through the Human Genome Project) has also dramatically improved our understanding of biology and as our scientific knowledge of normal and disease biology has increased, our ability to develop new medicines to treat previously untreatable diseases has increased as well.Genetic testing allows the genetic diagnosis of vulnerabilities to inherited diseases, and can also be used to determine a child's parentage (genetic mother and father) or in general a person's ancestry. In addition to studying chromosomes to the level of individual genes, genetic testing in a broader sense includes biochemical tests for the possible presence of genetic diseases, or mutant forms of genes associated with increased risk of developing genetic disorders. Genetic testing identifies changes in chromosomes, genes, or proteins. Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder. As of 2011 several hundred genetic tests were in use. Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.
Agriculture
Genetically modified crops ("GM crops", or "biotech crops") are plants used in agriculture, the DNA of which has been modified with genetic engineering techniques. In most cases, the main aim is to introduce a new trait that does not occur naturally in the species. Biotechnology firms can contribute to future food security by improving the nutrition and viability of urban agriculture. Furthermore, the protection of intellectual property rights encourages private sector investment in agrobiotechnology.
Examples in food crops include resistance to certain pests, diseases, stressful environmental conditions, resistance to chemical treatments (e.g. resistance to a herbicide), reduction of spoilage, or improving the nutrient profile of the crop. Examples in non-food crops include production of pharmaceutical agents, biofuels, and other industrially useful goods, as well as for bioremediation.Farmers have widely adopted GM technology. Between 1996 and 2011, the total surface area of land cultivated with GM crops had increased by a factor of 94, from 17,000 square kilometers (4,200,000 acres) to 1,600,000 km2 (395 million acres). 10% of the world's crop lands were planted with GM crops in 2010. As of 2011, 11 different transgenic crops were grown commercially on 395 million acres (160 million hectares) in 29 countries such as the US, Brazil, Argentina, India, Canada, China, Paraguay, Pakistan, South Africa, Uruguay, Bolivia, Australia, Philippines, Myanmar, Burkina Faso, Mexico and Spain.Genetically modified foods are foods produced from organisms that have had specific changes introduced into their DNA with the methods of genetic engineering. These techniques have allowed for the introduction of new crop traits as well as a far greater control over a food's genetic structure than previously afforded by methods such as selective breeding and mutation breeding. Commercial sale of genetically modified foods began in 1994, when Calgene first marketed its Flavr Savr delayed ripening tomato. To date most genetic modification of foods have primarily focused on cash crops in high demand by farmers such as soybean, corn, canola, and cotton seed oil. These have been engineered for resistance to pathogens and herbicides and better nutrient profiles. GM livestock have also been experimentally developed; in November 2013 none were available on the market, but in 2015 the FDA approved the first GM salmon for commercial production and consumption.There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are much less likely than scientists to perceive GM foods as safe. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.GM crops also provide a number of ecological benefits, if not used in excess. Insect-resistant crops have proven to lower pesticide usage, therefore reducing the environmental impact of pesticides as a whole. However, opponents have objected to GM crops per se on several grounds, including environmental concerns, whether food produced from GM crops is safe, whether GM crops are needed to address the world's food needs, and economic concerns raised by the fact these organisms are subject to intellectual property law.
Biotechnology has several applications in the realm of food security. Crops like Golden rice are engineered to have higher nutritional content, and there is potential for food products with longer shelf lives. Though not a form of agricultural biotechnology, vaccines can help prevent diseases found in animal agriculture. Additionally, agricultural biotechnology can expedite breeding processes in order to yield faster results and provide greater quantities of food. Transgenic biofortification in cereals has been considered as a promising method to combat malnutrition in India and other countries.
Industrial
Industrial biotechnology (known mainly in Europe as white biotechnology) is the application of biotechnology for industrial purposes, including industrial fermentation. It includes the practice of using cells such as microorganisms, or components of cells like enzymes, to generate industrially useful products in sectors such as chemicals, food and feed, detergents, paper and pulp, textiles and biofuels. In the current decades, significant progress has been done in creating genetically modified organisms (GMOs) that enhance the diversity of applications and economical viability of industrial biotechnology. By using renewable raw materials to produce a variety of chemicals and fuels, industrial biotechnology is actively advancing towards lowering greenhouse gas emissions and moving away from a petrochemical-based economy.Synthetic biology is considered one of the essential cornerstones in industrial biotechnology due to its financial and sustainable contribution to the manufacturing sector. Jointly biotechnology and synthetic biology play a crucial role in generating cost-effective products with nature-friendly features by using bio-based production instead of fossil-based. Synthetic biology can be used to engineer model microorganisms, such as Escherichia coli, by genome editing tools to enhance their ability to produce bio-based products, such as bioproduction of medicines and biofuels. For instance, E. coli and Saccharomyces cerevisiae in a consortium could be used as industrial microbes to produce precursors of the chemotherapeutic agent paclitaxel by applying the metabolic engineering in a co-culture approach to exploit the benefits from the two microbes.Another example of synthetic biology applications in industrial biotechnology is the re-engineering of the metabolic pathways of E. coli by CRISPR and CRISPRi systems toward the production of a chemical known as 1,4-butanediol, which is used in fiber manufacturing. In order to produce 1,4-butanediol, the authors alter the metabolic regulation of the Escherichia coli by CRISPR to induce point mutation in the gltA gene, knockout of the sad gene, and knock-in six genes (cat1, sucD, 4hbd, cat2, bld, and bdh). Whereas CRISPRi system used to knockdown the three competing genes (gabD, ybgC, and tesB) that affect the biosynthesis pathway of 1,4-butanediol. Consequently, the yield of 1,4-butanediol significantly increased from 0.9 to 1.8 g/L.
Environmental
Environmental biotechnology includes various disciplines that play an essential role in reducing environmental waste and providing environmentally safe processes, such as biofiltration and biodegradation. The environment can be affected by biotechnologies, both positively and adversely. Vallero and others have argued that the difference between beneficial biotechnology (e.g., bioremediation is to clean up an oil spill or hazard chemical leak) versus the adverse effects stemming from biotechnological enterprises (e.g., flow of genetic material from transgenic organisms into wild strains) can be seen as applications and implications, respectively. Cleaning up environmental wastes is an example of an application of environmental biotechnology; whereas loss of biodiversity or loss of containment of a harmful microbe are examples of environmental implications of biotechnology.
Regulation
The regulation of genetic engineering concerns approaches taken by governments to assess and manage the risks associated with the use of genetic engineering technology, and the development and release of genetically modified organisms (GMO), including genetically modified crops and genetically modified fish. There are differences in the regulation of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Regulation varies in a given country depending on the intended use of the products of the genetic engineering. For example, a crop not intended for food use is generally not reviewed by authorities responsible for food safety. The European Union differentiates between approval for cultivation within the EU and approval for import and processing. While only a few GMOs have been approved for cultivation in the EU a number of GMOs have been approved for import and processing. The cultivation of GMOs has triggered a debate about the coexistence of GM and non-GM crops. Depending on the coexistence regulations, incentives for the cultivation of GM crops differ.
Database for the GMOs used in the EU
The EUginius (European GMO Initiative for a Unified Database System) database is intended to help companies, interested private users and competent authorities to find precise information on the presence, detection and identification of GMOs used in the European Union. The information is provided in English.
Learning
In 1988, after prompting from the United States Congress, the National Institute of General Medical Sciences (National Institutes of Health) (NIGMS) instituted a funding mechanism for biotechnology training. Universities nationwide compete for these funds to establish Biotechnology Training Programs (BTPs). Each successful application is generally funded for five years then must be competitively renewed. Graduate students in turn compete for acceptance into a BTP; if accepted, then stipend, tuition and health insurance support are provided for two or three years during the course of their PhD thesis work. Nineteen institutions offer NIGMS supported BTPs. Biotechnology training is also offered at the undergraduate level and in community colleges.
References and notes
External links
What is Biotechnology? – A curated collection of resources about the people, places and technologies that have enabled biotechnology |
agricultural drone | An agricultural drone is an unmanned aerial vehicle used in agriculture operations, mostly in yield optimization and in monitoring crop growth and crop production. Agricultural drones provide information on crop growth stages, crop health, and soil variations. Multispectral sensors are used on agricultural drones to image electromagnetic radiation beyond the visible spectrum, including near-infrared and short-wave infrared.
Legality
As drones entered use in agriculture, the Federal Aviation Administration (FAA) encouraged farmers to use this new technology to monitor their fields. However, with the unexpected boom of agricultural drones, the FAA quickly retracted such encouragement, pending new rules and regulations. With incidents such as drones crashing into crop dusters, the FAA and the AFBF (American Farm Bureau Federation) began discussions to agree on regulations that would allow the beneficial use of such drones in a safe and efficient manner.In 2016, the FAA published rules for commercial drone operations. These rules require that commercial drone operators pass a knowledge exam, register their aircraft, and fly in accordance with published restrictions. While satisfied overall with the rules, the American Farm Bureau Federation would like small adjustments to some of the restrictions that have been implemented.Many countries, such as India, Malaysia, Singapore and Australia, have implemented laws regarding the use of drones. Such laws are still nonexistent in many countries around the world, and 15 countries have outlawed all drone operations. The EU plans to implement a common set of drone regulations for all of its members.
Security and ethics
The use of agricultural drones has ethical and social implications. One benefit is that they are able to monitor and control the use of pesticides properly. This allows minimizing the environmental impact of pesticides. However, drones do not require permission to fly over another person's property at altitudes of under 400 feet (120 m). They may have microphones and cameras attached, and the resulting concern for potential privacy violation has caused some opposition towards drones..One other improvement with using drones is the precision that they operate with.
Other companies might start flying their drones in unregulated areas to survey their competition and the condition of their crops and agricultural yield.
Future use
There is a large capacity for growth in the area of agricultural drones. With technology constantly improving, imaging of the crops will need to improve as well. With the data that drones record from the crops the farmers are able to analyze their crops and make educated decisions on how to proceed given the accurate crop information. Software programs for analyzing and correcting crop production have the potential to grow in this market. Farmers will fly a drone over their crops, accurately identify an issue in a specific area, and take the necessary actions to correct the problem. This gives the farmer time to focus on the overall task of production instead of spending time surveying their crops. Additional uses include keeping track of livestock, surveying fences, and monitoring for plant pathogens.Both the purchase and maintenance costs of modern drones make them too expensive for small farms in developing nations. Pilot programs in Tanzania are focusing on minimizing those costs, producing agricultural drones simple and rugged enough to be repaired locally.A research team from Washington State University has developed an automated drone system that deters pests like crows or European starlings from feeding on grapes and other crops. The birds could be scared off by the drone's noise, but researchers also could include distress calls and predatory bird noises.
See also
Aerial seeding
Agricultural robot
Environmental monitoring
Mechanised agriculture
Precision agriculture
References
External links
Anderson, Chris (2014). "Agricultural Drones". MIT Technology Review. 117 (3): 58–60. ProQuest 1534143322.
Bring in the drones: flying robots could be a valuable tool for crop surveillance. (n.d.) The Free Library. (2014). Retrieved Sep 18 2016
Farmers and Ranchers Will Soar with Agricultural Drones. (2015, April 28). Farm & Ranch Guide. Retrieved September 16, 2016
"Global Market for agricultural drones is expected to reach $3.69 billion by 2022; Finds New Report" (Press release). M2. 14 April 2016. ProQuest 1780742295.
Hetterick, H., & Reese, M. (2013, May 1). Ohio Ag Net | Ohio's Country Journal. Retrieved September 16, 2016, from http://ocj.com/2013/05/drones-can-be-positive-and-negative-for-the-ag-industry/
Penhorwood, J. (2016, June 29). Ohio Ag Net | Ohio's Country Journal. Retrieved September 25, 2016, from http://ocj.com/2016/06/drones-in-agriculture-ready-for-takeoff-with-new-faa-rules/
"Worldwide Agricultural Drones Market Analysis and Forecasting Report" (Press release). M2. 10 June 2016. ProQuest 1795453515. |
bioenergy in china | China has set the goal of attaining one percent of its renewable energy generation through bioenergy in 2020.
The development of bioenergy in China is needed to meet the rising energy demand.Several institutions are involved in this development, most notably the Asian Development Bank and China's Ministry of Agriculture. There is also an added incentive to develop the bioenergy sector which is to increase the development of the rural agricultural sector.
As of 2005, bioenergy use has reached more than 20 million households in the rural areas, with methane gas as the main biofuel. Also more than 4000 bioenergy facilities produce 8 billion cubic metres every year of methane gas. By 2006 20% of "gasoline" consumed was actually a 10% ethanol-gasoline blend. (People's Daily Online) As of 2010, electricity generation by bioenergy is expected to reach 5 GW, and 30 GW by 2020. The annual use of methane gas is expected to be 19 cubic kilometers by 2010, and 40 cubic kilometers by 2020.
China is the world's third-largest producer of ethanol, after Brazil and the United States.(RFA)
Although only 0.71% of the country's grain yield (3.366 million tons of grain) in 2006 was used for production of ethanol, concern has been expressed over potential conflicts between demands for food and fuel, as crop prices rose in late 2006.[1]
Events
10–12 October 2006, Beijing, China: Asia Biofuels Conference and Expo IV.
24–27 October 2006, Beijing, China: Great Wall Renewable Energy Forum. Includes a technical conference and trade show.
7–9 November 2006; Beijing, China: Hart's 5th Annual World Refining and Fuels Conference: Asia, Hotel Kunlun.
Developments
Chinese Enterprise Wins Award for Energy Efficiency, 23 June 2007 from chinagate.com.cn. Daxu wins an Ashden Award for producing over 25,000 efficient stoves that can burn crop waste for cooking and hot water. More details available here.
CASP agreement to benefit biofuel producers in Mekong, 11 April 2007 from Biofuelreview.com. Agriculture ministers from 6 countries, Cambodia, China, Laos, Myanmar, Thailand, and Vietnam have endorsed the Core Agricultural Support Program, which will work toward increasing trade and investment in agriculture in the Greater Mekong Subregion. A major focus will be helping farmers reap the benefits of new energy crops and related technologies.
Chinese Biofuels Expansion Threatens Ecological Balance, March 27, 2007 from Renewable Energy Access. A recent agreement between China's top forestry authority and one of the nation's biggest energy giants to develop biofuels plantations in the southwest may come at great environmental loss to the region's forests and biological diversity.
China plans to plant an area the size of England with biofuel trees 8 February 2007 from China Daily. China will plant 130,000 square kilometres, an area the size of England, with Jatropha trees to produce oil amounting to nearly 6 million tons of biodiesel every year. The jatropha trees can also provide wood fuel for a power plant with an installed capacity of 12 million kilowatts, will account for 30% of the country's renewable energy by 2010.
Ethanol fuels hopes of China's small farmers 29 January 2007 from The Standard. Beijing's push to create more ethanol from cassava and sugar cane may benefit farmers in Guanxi, but with China already a net-importer of tapioca and sugar it is not clear that there will be enough feedstocks to go around.
Biodiesel Sweeps China in Controversy 23 January 2007 from Renewable Energy Access. China is looking at new biodiesel feedstocks including a new variety of rapeseed, Chinese pistachio and jatropha. However, standards and regulations are lacking and concerns over food vs fuel are growing.
Biofuels eat into China's food stocks - 21 December 2006 from Asia Times Online. China has clamped down on the use of corn and other edible grains for producing biofuels due to concerns that it will impact on food security.
China Clean Energy outlines plan to expand biodiesel capacity using palm oil leavings as a feedstock (go to story) - 18 December 2006 from Biofuel Review.
China halts expansion of corn-based ethanol industry to arrest food price rise (go to story) - 20 December 2006 from newKerala.com.
Shaanxi Mothers win top environmental award, 16 June 2006 from blueskieschina.com. Shaanxi Mothers wins an Ashden Award for the fitting of almost 1,300 biogas systems in farming households across China's Shaanxi Province. More details available here.
Policy
The Renewable Energy Law of the People's Republic of China - English translation of the law, which took effect 1 January 2006.
Targets
Target of 10% renewable energy of the country's total energy consumption by 2010.
Alternative fuels: 6 million tons by 2010 and 15 million tons by 2020.[2]
Target of 50% use of ethanol-blended gasoline by 2010.
China has an annual production capacity of 1.02 million tons of ethanol. (source:People's Daily Online)
Issues
Biofuel production
"Corn accounted for 76 percent of the 1.02 million tons of ethanol produced" in 2005.[3]
Bioenergy potential
"Non-grain crops in China could eventually produce as much as 300 million tonnes of ethanol a year, according to a report on the National Development and Reform Commission's website.[4]
Organizations
Regional organizations
Core Agriculture Support Program - A program that includes southern China and the countries of the Mekong Subregion in South-East Asia, that provides support for biofuel feedstock and other agricultural programs.
Government organizations
english.gov.net is the main English language portal for the Chinese Government. Many agencies do not yet have English language pages.China's circulars on bioenergy policy have been co-released by the following agencies:
National Development and Reform Commission English overview of the NDRC, which is "a macro-economic regulatory department, with a mandate to develop national economic strategies". It deals with China's targets for biofuels.
NDRC (Chinese only)
State Environmental Protection Agency (SEPA)
Ministry of FinanceThe Ministry of Finance helps regulate subsidies and tax policy for bioenergy.
MOF (Chinese)
Ministry of Agriculture (Chinese) Archived 2016-07-31 at the Wayback Machine
State Forestry Administration (Chinese)
State Administration of Taxation
Government websites (English)
Cleaner Production in China with an overview of Chinese environmental law, policy and case studies relating to cleaner production and the circular economy.
China Climate Change Info-Net Information on laws, events, organizations and news dealing with climate change and renewable energy in China.
Non-governmental organizations (NGOs)
Companies
China National Petroleum CorporationCNPC, through its subsidiary Jilin Fuel Ethanol Ltd. Co, built China's first ethanol plant using corn as a feedstock and now runs several other ethanol projects. Press Release: China's First fuel ethanol line into production in Jilin 27 November 2003.
China National Cereals, Oils and Foodstuffs Corporation (Chinese only)
Plans to invest more than US$1 billion in ethanol projects to increase production capacity to 3 million tons.
Currently owns an ethanol plant in Heilongjiang Province and has a 20 percent stake in another plant in Jilin Province, both using corn as a feedstock
The company is constructing an ethanol plant, which will use cassava as a feedstock, in the Guangxi Zhuang Autonomous Region.
Is awaiting Government permission to build two 300,000-ton-per-year ethanol plants in Hebei Province, using corn and sweet potatoes, and Liaoning Province, using only sweet potatoes. (source: Climate Change China Info-Net (.gov site))
BBCA (Mostly Chinese) Large scale ethanol and biomass producer, using corn and cassava. Also doing research into cellulosic ethanol.
China Integrated Energy China Integrated Energy, Inc. is a leading non-state-owned, integrated energy company in China engaged in three business segments: the wholesale distribution of finished oil and heavy oil products, the production and sale of biodiesel, and the operation of retail gas stations.Publicly traded companiesAt least two publicly traded companies, China Clean Energy, Inc. and Gushan, manufacture and sell significant amounts of biodiesel in China.
Publications
People's Republic of China Bio-Fuels: An Alternative Future for Agriculture 2006 prepared by Kevin Latner, Caleb O'Kray, Junyang Jiang; USDA Foreign Agricultural Service, 8 August 2006.
Environmental and Social Impact Analysis: Stora Enso Plantation project in Guangxi, China UNDP, 5 February 2006. This analyzes the social and environmental impact of a large-scale forest plantation project by Stora Enso. Although this project is intended to supply pulp, its impacts are the same as if it were supplying bioenergy.
Liquid Biofuels for Transportation: Chinese Potential and Implications for Sustainable Agriculture and Energy in the 21st Century (PDF file) - GTZ, 2005.
Health, Ecological, Energy And Economic Impacts Of Integrated Agricultural Bioenergy Systems In China And Institutional Strategies For Their Successful Diffusion (pdf) by John Byrne, Young-Doo Wang, William Ritter (supervisors); Center for Energy and Environment Policy, U. of Delaware, October 2004.OtherBiomass energy in China and its potential
Rethinking China’s bioenergy future Lin Gan - May 21, 2007
See also
Renewable energy in China
Solar power in China
Wind power in China
Geothermal power in China
Hydroelectricity in China
Biofuels by region
Food vs. fuel
Renewable energy by country
References
China - BioenergyWiki
External links
Biogas Scientific Research Institute of the Ministry of Agriculture |
agriculture in turkey | Agriculture is still an important sector of Turkey's economy, and the country is one of the world's top ten agricultural producers. Wheat, sugar beet, milk, poultry, cotton, vegetables and fruit are major products; and Turkey is the world's largest grower of hazelnuts, apricots, and oregano.Half of Turkey's land is agricultural, and farming employs about 15% of the workforce, but under half a million farmers. It provides about 10% of exports and over 5% of gross domestic product (GDP). Over 380 billion lira of agricultural subsidy is bugetted for 2024.Despite being a major food producer, Turkey is a net wheat importer, with much of it coming from Russia and Ukraine. Turkey is the European Union (EU)'s fourth largest vegetable supplier and the seventh largest fruit supplier. Turkey would like to extend the EU Customs Union Agreement to agricultural products.Around half of Turkey's agricultural greenhouse gas is due to cattle. According to the World Bank, the sector should adapt more to climate change in Turkey and make technical improvements. Sugar beet is subsidized despite obesity being a problem for health in Turkey. Strategic planning is the responsibility of the Ministry of Agriculture and Forestry, but there is no such plan for 2024 onwards. Almost all the seeds used in Turkey are produced domestically.
History
Historically, Turkey's farmers have been fairly fragmented. Atatürk, who founded the republic in the early 20th century, said that the foundation of the economy was agriculture. Governments initiated many projects, such as the controversial Southeastern Anatolia Project, but later much agriculture was privatized.The population increased a lot in the 20th century, so there was more demand for food and agricultural land. From 1880 to 1950 agricultural output growth averaged about 1% a year, in line with the increased population having new land. Then growth accelerated as more land could be cultivated because there were many more machines, such as tractors - for example due to the Marshall Plan. By the 1970s higher yielding varieties of wheat had been planted, but einkorn continued to be consumed by locals.The increase in agricultural land continued until the 1990s when it started to decrease. Like many other countries Turkey industrialized and urbanized, and by the end of the 20th century only 35% of employment and 13% of GDP was from agriculture.Formerly widespread in the west and centre of the country, in 1933 opium growing was strictly controlled. In the 20th century growing tobacco was economically important in provinces such as Samsun, and was supported by the state, but in the early 21st century it was discouraged by governments keen to reduce smoking in Turkey. During the early 21st century farmers shifted to growing more profitable crops such as fruit and vegetables, instead of wheat and corn.: 4
Environment
Issues
Half of Turkey's land is agricultural. Turkish agriculture emits greenhouse gases half from cattle. Since at least 1990 enteric fermentation (cows and sheep belching methane) has been the largest source of greenhouse gas emissions from agriculture, followed by agricultural soils.: 38 According to the World Bank, the sector should adapt more to climate change in Turkey and make technical improvements. The Aegean Region may be the most at risk from climate change.14% of food was lost during agricultural processing in 2016, compared to 23% trashed by consumers before eating and 5% leftovers. Stubble burning is illegal in Turkey, but farmers continue the practice illicitly. Deliberate burning field residue can cause wildfires in Turkey. Agriculture on steep land can increase the risk of flooding.: 32 In 2020 over 900 thousand tonnes of ammonia was emitted.
Water
At around 1300 m3 freshwater per person per year Turkey is water-stressed and at risk of water scarcity, mainly due to wasteful irrigation. Water pricing is being considered. Desertification has been modelled and the risk has been mapped, showing that high-risk regions are Karapınar, Aralık, Ceylanpınar and Lake Tuz basins. Solar power is occasionally used to pump water in order to combat drought, which can reduce planting of crops such as corn and potatoes. The irrigation part of the Eastern Anatolia Project is controversial.Farmers mostly use surface irrigation, which may quickly deplete groundwater and can runoff the farm. Runoff is causing nitrogen pollution in some river basins. This can cause eutrophication which threatens aquatic life and a project is ongoing to map and combat this. As of 2023 73% of Turkey's water supply is used for irrigation, and it has been estimated that this is double what it would be if all farmers used drip irrigation. Farmers are reluctant because of the installation cost of drip installation, and more government support has been suggested. Shrinking lakes have been blamed both on reduced precipitation due to climate change and incorrect crops using more water, such as corn and sugar beet.
Regions and soils
The most important regions for agriculture are the Mediterranean, Aegean, Black Sea, Thrace and Marmara, Central Anatolia, Eastern Anatolia and transition regions.: 8 By the mid-20th century erosion had reduced the amount of arable land, but the government is combating desertification and erosion in various ways. However soil erosion is forecast to increase with climate change, with about 30% occurring on agricultural land. The main types of soil in Turkey are calisols, cambisols and leptosols, and fluvisols. Degraded soil could be improved.: 11 Soil surveys have been done at least since the 1950s, and the ministry has published soil maps. The Turkish Foundation for Combating Soil Erosion is an NGO as is the Soil Science Society of Turkey. A 2016 study said soil had been degraded and that there was great potential to sequester carbon. There is a public soil database, but as of 2023 the weblink does not work. Increasing soil organic carbon (SOC) in agricultural soils is important, and in 2017 total SOC down to 0.7 m was estimated at 9.23 Pg. Another estimate is slightly under 3000 tonnes/sq km. Accumulation of soil organic matter depends partly on cultivation but can be hindered by aridity.
Crops
Crops can be grown in all regions and there is livestock on high mountains and in arid regions. Wheat, sugar beet, cotton, vegetables and fruit are major crops; and Turkey is the world's largest grower of hazelnuts, apricots, oregano and raisins.As of 2023 most cultivated land is for grain. In 2022 70 million tonnes of cereals and other crops were produced; 32 million tonnes of vegetables; and 27 million tonnes of fruit, beverages and spice crops; and the country was self-sufficient in rapeseed, dry beans, potatoes and sugar beet and almost all fruits and vegetables. Due to rotation a third of arable land is fallow each year.: 8
Cereals
In 2021 the country was almost self-sufficient in cereals, and the largest exports in 2022 were to Iraq, the United States and Syria. However in hotter years less cereal is produced. About 20 million tonnes a year of wheat are grown, but less than half that each barley and corn. Most wheat is winter wheat. Wheat yields average 2 and a half tonnes a hectare, and climate change affects both wheat productivity and where it is grown. Barley is not usually irrigated, so yield depends on rainfall. Drought can be a problem for both winter wheat and winter barley. Nearly 85% of corn is used to make animal feed. Rice is planted April/May and harvested Sept/Oct.
Fruit, vegetables and legumes
Citrus fruits are grown mainly in the Mediterranean and Aegean regions. Many tomatoes are exported. Most vegetable and fruit exports are to the EU. Greenhouses have a competitive advantage over EU ones due to lower costs. In 2022 Turkey had a third of the world's greenhouses heated by geothermal energy. Geothermal heat can also be used to dry fruit. Tropical fruit such as mangoes can be grown in greenhouses. In 2023 hydroponics is starting to be used in these geothermal greenhouses. Although banana cultivation in the Mediterranean region is increasing, some farmers are switching to avocados as they are more profitable because they need less water.About 4 million tonnes of grapes are grown annually, ranking sixth in the world. The country has the fifth largest area of vineyard, and about 3% of the harvest is used for Turkish wine. Raisins are exported to the EU and the United Kingdom.
There are almost 200 million olive trees, and Turkey produces about 200 thousand tonnes of olive oil a year, that is an average of 1 kg per tree per year. Edremit (Ayvalık) is the main variety in northern Turkey and Memecik in the south. Gemlik is a black table olive and many other varieties are grown.Lentils are grown in the south-east.
Nuts and oilseeds
About 70% of the world's hazelnuts are produced in Turkey. Ferrero, the Italian producer of Nutella spread, buys the most. The agriculture ministry is encouraging planting more almond and commercial walnut trees, as national supply does not meet domestic demand. Around 200 thousand tonnes of pistachios are produced annually but yields vary a lot between on and off years. The Turkish Foundation for Combating Soil Erosion has been training pistachio farmers.
Almost half of the country's sunflower seeds are grown in Thrace, and more sunflower oil is consumed than olive oil, as it is cheaper. Soybeans are used as a rotation crop and to feed fish and chickens.
Tea
Herbs medicines and spices
There are about a thousand species of herbs, medicines and spices, of which almost half are exported, with oregano, bay leaves, sage, aniseed and cumin being the top export earners. But much aniseed is used in the country to flavour rakı. Turkey produces most of the world's oregano, and garlic is grown. Opium is grown for medicines.
Livestock
There are about 150 thousand sq km of pasture. Much more meat is produced from cattle than sheep. A lot of sheep and goat meat is exported to Iraq. Over 20 million tonnes of milk is produced each year. The meat and milk board regulates the meat market.The main animal feed crops are alfalfa, silage corn, oats, vetch, and sainfoin. Animal feed manufacture depends on imports and more cattle feed is produced than chicken feed. Livestock are affected by foot and mouth disease.
Cattle
In 2022 there were 17 million cattle of which about 70% were dairy. Native cattle breeds such as Anatolian Black cattle are low yielding but hardy. About 80% of cattle farm expenditure is on feed. In 2023 inflation was a problem for cattle farmers as feed prices were increasing faster than milk and beef prices. Most imports are feeder cattle for beef. Around half of Turkey's agricultural greenhouse gas is due to cattle. Traditionally transhumance was practiced. The Agriculture Ministry is trying to get more biogas produced from cattle waste.
Sheep, goats and buffalo
Turkey is a major sheep producer. In 2022 there were 45 million sheep, including 30 million ewes (mostly of the fat-tailed type) and the average flock size was 85. A quarter of meat is from sheep, with 390 thousand tonnes a year and an average 4.2 kilograms (9.3 lb) is consumed per person per year. The highest sheep meat consumption is during Eid Al Adha. Turkish sheep meat is exported to Iraq, Syria and Gulf countries. Cheese is made from sheep milk. Sheep and goats are mostly fed on pasture. In 2022 there were 12 million goats and 170 thousand buffalo.
Other livestock
Over a million tonnes of poultry meat and over 2 million tonnes of eggs are produced a year, and over a hundred thousand tonnes of honey.
Policy, regulation and research
It is the responsibility of the Ministry of Agriculture and Forestry. Almost all the seeds used in Turkey are produced domestically.
Seeds and bulbs are stored long term. The World Bank has a project to improve sustainable agriculture in some regions, however in the first 2 decades of the 21st century farming is thought not to have been sustainable. The EU said in 2022 that food safety, veterinary and phytosanitary policy should be improved.Various tech is being considered, sometimes similar is already being made in local factories, for example the defence industry makes drones. There are about 2 million tractors and it has been suggested that electric tractors should be subsidized. However, there is only one electric tractor manufacturer and they are not yet mass-produced. There is a General Directorate of Agricultural Research and Policies (TAGEM) centre for research on soil borne pathogens.As of 2022 some gene editing of animal feed corn and feed soya has been allowed but not for human food. Biostimulants have been suggested to increase drought resistance and food security, as has technology to use water more efficiently. No-till farming is being studied. A 2023 study said that enforcement of pesticide rules was lax.Examples of good practice suggested by the Turkish Industry and Business Association (TÜSİAD) include reduced ploughing, low fertiliser use, mulching, and nitrogen inhibitors.: 19 Less ploughing saves fuel costs.: 399
Trade and economics
Agriculture is an important sector of Turkey's economy, and the country is one of the world's top ten agricultural producers. Over 50 billion dollars revenue a year is from agriculture, and farming provided 10% of exports in 2020 and 6.5% of GDP in 2022. Despite being a major food producer, Turkey is a net wheat importer, with much of it coming from Russia and Ukraine. Turkey is the EU's fourth largest non-EU vegetable supplier and the seventh largest fruit supplier. In 2023 Finance Minister Mehmet Şimşek said he would like to restart negotiations on the “low-hanging fruit" of extending the EU Customs Union Agreement to agricultural products, which had came to a halt in 2018; as of 2023 the agreement only applies to processed agricultural products. In 2021, Turkey received 65 percent of all imported wheat from Russia and more than 13 percent from Ukraine. Around 70% of imported wheat is reexported as pasta, bulgur and flour. Europe and the Middle East are large export markets and some food is processed before export. In 2020 the country receiving the most exports was Iraq, and that sending the most food to Turkey was Russia. Turkey is the world's largest exporter of wheat flour, and some other countries's flour producers say it is dumping with unfair subsidies. The EU intends to support rural development with €430 million during 2021–2027. Total Factor Productivity is estimated to have decreased by 2% annually on average from 2005 to 2016. According to the International Fund for Agricultural Development “investment is needed to help farmers update production techniques, boost productivity and cope with climate change” in the uplands (most rural land is uplands). In 2023 food inflation was over 50%. In 2023 the EU complained that Turkey was restricting imports and said it should improve food safety, veterinary and phytosanitary policy.Although in April 2023 there were no import taxes on wheat, barley, maize, rye, oats, legumes and sorghum; as of May 2023 there is a 130% import tariff on wheat, rye, oats, barley and corn. The TMO price of wheat was about 30% below the market price in 2023. Gübretaş and Hektaş are large producers of fertiliser and other farm products. State enterprises market some products. Over a billion dollars of damage to agriculture infrastructure and storage was done by the 2023 earthquake. The Agricultural Insurance Pool(Turkish) is linked to the government. But import tariffs average over 40% so it would be hard to add agriculture to the EU customs union. Some academics say that high food price inflation is due to macroeconomic instability. Food price rises such as onion and potato prices can be politically sensitive. TÜSİAD say that Turkey needs a good climate change adaptation strategy to cope with effects such as drought. Input costs could be reduced by replacing some diesel use with solar power, but as of 2022 agrivoltaics is only allowed on agriculturally marginal land. and farmers say there is too much red tape. Problems include small farm sizes, rising import costs and natural resource depletion such as soil.: 4
Nearly two-thirds of farms are smaller than 5 hectares, possibly due to divisions on inheritance.
Employment
There are just under half a million farmers as of 2022, 16% of the workforce. As of 2022, agricultural statistics need improvement according to the EU. In 2022 there were over 2 million people on the Agriculture Ministry's Farmer Registration System, but only half a million were farmers and known to the Social Security Institution. Many farms are small and family farms are common, with many women working informally. It has been claimed that with the influx of Syrian refugees seasonal agricultural work became more precarious, especially for women and children. Kurdish seasonal workers are also poor. The International Labour Organization is helping to stop child labour. The UN Food and Agriculture Organization has various projects, prioritising “Food and Nutrition Security and Food Safety”, “Sustainable use of natural resources and raising awareness on climate change impacts” and “Institutional Capacity of Public and Private Sectors".
Subsidies
The 2023 agricultural support budget was 55.5 billion lira. In 2019-21 about 20% of gross farm income was government support, mostly market price support, particularly for potatoes, wheat, sunflower seed and beef. Diesel and fertilizer payments were made, which may make the goal of net zero greenhouse gas emissions by 2053 more difficult. Sugar beet is subsidized despite obesity being a problem for health in Turkey.Farmers are not allowed to export wheat. Despite subsidies farmer's fuel and fertilizer costs increased a lot in 21/22 due to international price rises and the fall in the lira. The state's Grain Board (TMO)(Turkish) sometimes pays more for foreign than Turkish wheat, and farmers complain that foreign wheat is sold at a discount: this is done so bread is cheaper, as Turks eat so much bread. A TMO objective is to stabilize grain prices. Cotton growing and oilseeds are subsidized. There is some support for organic farming.
Notes
References
External links
Towards sustainable food systems, Turkish government strategy for the agriculture sector
TÜİK - Veri Portalı Turkstat agriculture statistics
"Turkish Journal of Agriculture and Forestry". journals.tubitak.gov.tr. TÜBİTAK. Retrieved 2023-02-27.
Further reading
The Soils of Turkey Soils of Turkey |
sustainable city | A sustainable city, eco-city, or green city is a city designed with consideration for social, economic, environmental impact (commonly referred to as the triple bottom line), and resilient habitat for existing populations, without compromising the ability of future generations to experience the same. The UN Sustainable Development Goal 11 defines sustainable cities as those that are dedicated to achieving green sustainability, social sustainability and economic sustainability. They are committed to doing so by enabling opportunities for all through a design focused on inclusivity as well as maintaining a sustainable economic growth. The focus will also includes minimizing required inputs of energy, water, and food, and drastically reducing waste, output of heat, air pollution – CO2, methane, and water pollution. Richard Register, a visual artist, first coined the term ecocity in his 1987 book Ecocity Berkeley: Building Cities for a Healthy Future, where he offers innovative city planning solutions that would work anywhere. Other leading figures who envisioned sustainable cities are architect Paul F Downton, who later founded the company Ecopolis Pty Ltd, as well as authors Timothy Beatley and Steffen Lehmann, who have written extensively on the subject. The field of industrial ecology is sometimes used in planning these cities.
The UN Environment Programme calls out that most cities today are struggling with environmental degradation, traffic congestion, inadequate urban infrastructure, in addition to a lack of basic services, such as water supply, sanitation, and waste management. A sustainable city should promote economic growth and meet the basic needs of its inhabitants, while creating sustainable living conditions for all. Ideally, a sustainable city is one that creates an enduring way of life across the four domains of ecology, economics, politics, and culture. The European Investment Bank is assisting cities in the development of long-term strategies in fields including renewable transportation, energy efficiency, sustainable housing, education, and health care. The European Investment Bank has spent more than €150 billion in bettering cities over the last eight years.Cities occupy just 3 percent of the Earth's land but account for 60 to 80 percent of energy consumption and at least 70 percent of carbon emissions. Thus, creating safe, resilient, and sustainable cities is one of the top priorities of the Sustainable Development Goals. The Adelaide City Council states that socially sustainable cities should be equitable, diverse, connected, democratic, and provide a good quality of life. Priorities of a sustainable city include the ability to feed itself with a sustainable reliance on the surrounding natural environment and the ability to power itself with renewable sources of energy, while creating the smallest conceivable ecological footprint and the lowest quantity of pollution achievable. All of this is to be accomplished by efficient land use, composting organic matter, recycling used materials, and/or converting waste-to-energy. The idea is that these contributions will lead to a decrease of the city's impact on climate change.
Today, 55 percent of the world is estimated to be living in urban areas and the United Nations estimates that by the year 2050, that number will rise to 70 percent. By 2050, there may be nearly 2.5 more billion individuals living in urban cities, possibly making it more difficult to create more sustainable communities. These large communities provide both challenges and opportunities for environmentally-conscious developers. There are distinct advantages to further defining and working towards the goals of sustainable cities. Humans thrive in urban spaces that foster social connections. Richard Florida, an urban studies theorist, focuses on the social impact of sustainable cities and states that cities need more than a competitive business climate; they should promote a great people climate that appeals to individuals and families of all types. Because of this, a shift to denser urban living would provide an outlet for social interaction and conditions under which humans can prosper. These types of urban areas would also promote the use of public transit, walkability, and biking which would benefit citizens' health as well as benefiting the environment.
Practical methods to create sustainable cities
Different agricultural systems such as agricultural plots within the city (suburbs or centre). This reduces the distance food has to travel from field to fork. This may be done by either small-scale/private farming plots or through larger-scale agriculture (e.g. farmscrapers).
Renewable energy sources, such as wind turbines, solar panels, or bio-gas created from sewage to reduce and manage pollution. Cities provide economies of scale that make such energy sources viable.
Various methods to reduce the need for air conditioning (a massive energy demand), such as passive daytime radiative cooling applications, planting trees and lightening surface colors, natural ventilation systems, an increase in water features, and green spaces equaling at least 20% of the city's surface. These measures counter the "heat island effect" caused by an abundance of tarmac and asphalt, which can make urban areas several degrees warmer than surrounding rural areas—as much as six degrees Celsius during the evening.
Improved public transport and an increase in pedestrianization to reduce car emissions. This requires a radically different approach to city planning, with integrated business, industrial, and residential zones. Roads may be designed to make driving difficult.
Optimal building density to make public transport viable but avoid the creation of urban heat islands.
Green roofs alter the surface energy balance and can help mitigate the urban heat island effect. Incorporating eco roofs or green roofs in your design will help with air quality, climate, and water runoff.
Zero-emission transport
Zero-energy building to reduce energy consumption and greenhouse gas emissions using renewable energy sources.
Sustainable urban drainage systems or SUDS in addition to other systems to reduce and manage waste.
Energy conservation systems/devices
Xeriscaping – garden and landscape design for water conservation
Sustainable transport, incorporates five elements: fuel economy, occupancy, electrification, pedal power, and urbanization.
Circular economy to combat inefficient resource patterns and ensure a sustainable production and consumption roadmap.
Increase of cycling infrastructure would increase cycling within cities and reduce the number of cars being driven and in turn reduce car emissions. This would also benefit the health of citizens as they would be able to get more exercise through cycling.
Key performance indicators – development and operational management tool providing guidance and M&V for city administrators currently monitor and evaluate energy savings in various facilities.
Sustainable Sites Initiative or SSI – voluntary national guidelines and performance benchmarks for sustainable land design, construction and maintenance practices. Key areas of focus are soil, vegetation, hydrology, materials, and human health and well-being.Sustainable cities are creating safe spaces for its inhabitants through various means, such as:
Solutions to decrease urban sprawl, by seeking new ways of allowing people to live closer to the workspace. Since the workplace tends to be in the city, downtown, or urban center, they are seeking a way to increase density by changing the antiquated attitudes many suburbanites have towards inner-city areas. One of the new ways to achieve this is by solutions worked out by the Smart Growth Movement.
Educating residents of cities about the importance and positive impacts of living in a more sustainable city. This is to boost the initiative to have sustainable developments and push people to live in a more sustainable and environmentally-friendly way.
Policy and planning changes to meet the unmet demands for urban services (water, energy, transport).With regard to methods of emissions counting cities can be challenging as production of goods and services within their territory can be related either to domestic consumption or exports. Conversely the citizens also consume imported goods and services. To avoid double counting in any emissions calculation it should be made clear where the emissions are to be counted: at the site of production or consumption. This may be complicated given long production chains in a globalized economy. Moreover, the embodied energy and consequences of large-scale raw material extraction required for renewable energy systems and electric vehicle batteries is likely to represent its own complications – local emissions at the site of utilization are likely to be very small but life-cycle emissions can still be significant.
Architecture
Buildings provide the infrastructure for a functioning city and allow for many opportunities to demonstrate a commitment to sustainability. A commitment to sustainable architecture encompasses all phases of building including the planning, building, and restructuring. Sustainable Site Initiative is used by landscape architects, designers, engineers, architects, developers, policy-makers, and others to align land development and management with innovative sustainable design.
Eco-industrial park
The UNIDO (United Nation's Industrial Development Organization) defines eco-industrial park as a community of businesses located on a common property in which businesses seek to achieve enhanced environmental, economic, and social performance through collaboration in managing environmental and resource issues. This is an industrial symbiosis where companies gain an added benefit by physically exchanging materials, energy, water, and by-products, thus enabling sustainable development. This collaboration reduces environmental impact while simultaneously improves economic performance of the area.
The components for building an eco-industrial park include natural systems, more efficient use of energy, and more efficient material and water flows. Industrial parks should be built to fit into their natural settings in order to reduce environmental impacts, which can be accomplished through plant design, landscaping, and choice of materials. For instance, there is an industrial park in Michigan built by Phoenix Designs that is made almost entirely from recycled materials. The landscaping of the building will include native trees, grasses, and flowers, and the landscaping design will also act as climate shelter for the facility. In choosing the materials for building an eco-industrial park, designers must consider the life-cycle analysis of each medium that goes into the building to assess their true impact on the environment and to ensure that they are using it from one plant to another, steam connections from firms to provide heating for homes in the area, and using renewable energy such as wind and solar power. In terms of material flows, the companies in an eco-industrial park may have common waste treatment facilities, a means for transporting by-products from one plant to another, or anchoring the park around resource recovery companies that are recruited to the location or started from scratch. To create more efficient water flows in industrial parks, the processed water from one plant can be reused by another plant and the park's infrastructure can include a way to collect and reuse stormwater runoff.
Examples
Recycled Park in Rotterdam, the Netherlands
The Recycled Park in Rotterdam, the second-largest city in the Netherlands, is an initiative introduced by Recycled Island Foundation, a Netherlands-based organization focused on recycling littered waste via creating their iconic island-parks, among other sustainable projects. Rotterdam's Recycled Park is a cluster of floating, green hexagonal "islands" composed of reused litter. The group has utilized a system of passive litter traps to collect this litter from the Maas River. The park's location upon the Maas River reflects a circular process aimed at creating a more sustainable city.
On the underside of the recycled park are materials that will support the growth of plants and wildlife indigenous to the area. This interest in growing the biodiversity of Rotterdam's natural elements is also reflected in other cities. Chicago's Urban Rivers organization is similarly trying to solve this issue by building and growing the Wild Mile of floating parks and forests along the Chicago River with the goal of revegetation. Both Urban Rivers' and Recycled Island Foundation's interest in improving the area's biodiversity reflects an interest in greening the built urbanism of the surrounding city.
Rotterdam's Recycled Park may suggest a greater trend in creating floating structures in response to greater climate-change-motivated impacts. The Floating Farm in Rotterdam sustainably approaches food production and transport. Other floating structures include renewable energy-powered houseboats and luxury residences some 800 meters from the coast. The Dutch city of Amsterdam likewise boasts a neighbourhood of artificial, floating islands in the suburb of IJburg.
The idea of expanding both commercial enterprise and residential developments onto the water is oftentimes reflective of the demand to limit land-usage in urban areas. This has various, wide-reaching environmental impacts: reducing the aggregation of the urban heat-island effect, the zoning efforts expended on engineering and regulating the floodplain (and potentially, the capacity of waste-water reservoirs), and reduce the demands of the automobility state.
The Recycled Park is a holistic approach to limiting the expense of waste. The employment of greenery has air-purifying effects, to reduce pollution. Additionally, the modular, hexagonal design allows reconstruction of each "island"; this space thus also offers environmental sustainability, as well as an open space for community-growing and other social opportunities.
Urban farming
Urban farming is the process of growing and distributing food, as well as raising animals, in and around a city or in urban areas. According to the RUAF Foundation, urban farming is different from rural agriculture because it is integrated into the urban economic and ecological system: urban agriculture is embedded in and interacting with the urban ecosystem. Such linkages include the use of urban residents as the key workers, use of typical urban resources (such as utilizing organic waste as compost or urban wastewater for irrigation), direct links with urban consumers, direct impacts on urban ecology (positive and negative), being part of the urban food system, competing for land with other urban functions, being influenced by urban policies and plans. One motivation for urban agriculture in sustainable cities includes saving energy that would be used in food transportation. Urban farming infrastructure can include common areas for community gardens or farms, as well as common areas for farmers markets in which the food items grown within the city can be sold to the residents of the urban system.
Tiny forests or miniature forests is a new concept where many trees are grown on a small patch of land. These forests are said to grow 10x faster and 30x denser with 100x biodiversity than larger forests. Additionally, they are 100% organic. The ratio of shrub layer, sub-tree layer, tree layer, and canopy layer of the miniature forest along with the percentage of each tree species are planned and fixed before planting so as to promote biodiversity.
New Urbanism
The most clearly defined form of walkable urbanism is known as the Charter of New Urbanism. It is an approach for successfully reducing environmental impacts by altering the built environment to create and preserve smart cities that support sustainable transport. Residents in compact urban neighbourhoods drive fewer miles and have significantly lower environmental impacts across a range of measures, compared with those living in sprawling suburbs. The concept of circular flow land use management has also been introduced in Europe to promote sustainable land use patterns that strive for compact cities and a reduction of greenfield land taken by urban sprawl.
Sustainable architecture, a recent movement of New Classical Architecture, promotes a sustainable approach towards construction that appreciates and develops smart growth, walkability, vernacular tradition, and classical design. This in contrast to modernist and globally uniform architecture and opposes solitary housing estates and suburban sprawl. Both trends started in the 1980s.
Individual buildings (LEED)
The Leadership in Energy and Environmental Design (LEED) Green Building Rating System encourages and accelerates global adoption of sustainable green building and development practices through the creation and implementation of universally understood and accepted tools and performance criteria.
LEED, or Leadership in Energy and Environmental Design, is an internationally recognized green building certification system. LEED recognizes whole building sustainable design by identifying key areas of excellence including: Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources, Indoor Environmental Quality, Locations & Linkages, Awareness and Education, Innovation in Design, Regional Priority. In order for a building to become LEED certified sustainability needs to be prioritized in design, construction, and use. One example of sustainable design would be including a certified wood like bamboo. Bamboo is fast growing and has an incredible replacement rate after being harvested. By far the most credits are rewarded for optimizing energy performance. This promotes innovative thinking about alternative forms of energy and encourages increased efficiency.
A new district in Helsinki, Finland is being made almost entirely using timber. This timber is a form of a Laminated Veneer Lumbar (LVL) that has high standards of fire resistance. The idea is that wood construction has a much smaller CO2 footprint than concrete and steel construction and thus, this project is going to take Finland's timber architecture to new heights of sustainability.
Sustainable Sites Initiative (SSI)
Sustainable Sites Initiative, a combined effort of the American Society of Landscape Architects, The Lady Bird Johnson Wildflower Center at The University of Texas at Austin, and the United States Botanic Garden, is a voluntary national guideline and performance benchmark for sustainable land design, construction and maintenance practices. The building principles of SSI are to design with nature and culture, use a decision-making hierarchy of preservation, conservation, and regeneration, use a system thinking approach, provide regenerative systems, support a living process, use a collaborative and ethical approach, maintain integrity in leadership and research, and finally foster environmental stewardship. All of these help promote solutions to common environmental issues such as greenhouse gases, urban climate issues, water pollution and waste, energy consumption, and health and wellbeing of site users. The main focus is hydrology, soils, vegetation, materials, and human health and well-being.
In SSI, the main goal for hydrology in sites is to protect and restore existing hydrologic functions. To design storm water features to be accessible to site users, and manage and clean water on site. For site design of soil and vegetation many steps can be done during the construction process to help minimize the urban heat island effects, and minimize the building heating requirements by using plants.
Regenerative architecture
Regenerative architecture includes repurposing abandoned spaces to increase green space by using cost-effective design techniques. An old railway line in Bangkok has been recently converted in the Phra Pok Klao Sky Park, a green park in the congested city of Bangkok. The New York High Line project is one of the oldest examples of regenerative architecture where an abandoned railway line is repurposed into an elevated park and social gathering space for its citizens.
Eco-cities
Eco-cities are rooted in various urban planning traditions, including the early garden city movement initiated by Ebenezer Howard. These early efforts sought self-contained, green, and interconnected communities. In the latter 20th century, a broader understanding of ecological systems prompted the need for cities to address their ecological impact both locally and globally. Concepts like "urban metabolism" and McHarg's ecological site planning emerged. The term "ecocity" was coined by Richard Register in the 1980s during the rise of sustainability concerns, as outlined in the Brundtland Commission Report. Sustainability in urban planning focuses on inter-generational equity, environmental protection, and more. In the 2000s, resilience became a key perspective, highlighting the importance of ecological and social resilience in cities facing climate change challenges.
Transportation
As major focus of the sustainable cities, sustainable transportation attempts to reduce a city's reliance and use of greenhouse emitting gases by utilizing eco-friendly urban planning, low environmental impact vehicles, and residential proximity to create an urban center that has greater environmental responsibility and social equity.
Poor transportation systems lead to traffic jams and high levels of pollution. Due to the significant impact that transportation services have on a city's energy consumption, the last decade has seen an increasing emphasis on sustainable transportation by developmental experts. Currently, transportation systems account for nearly a quarter of the world's energy consumption and carbon dioxide emission. In order to reduce the environmental impact caused by transportation in metropolitan areas, sustainable transportation has three widely agreed-upon pillars that it utilizes to create more healthy and productive urban centers.
The Carbon Trust states that there are three main ways cities can innovate to make transport more sustainable without increasing journey times – better land use planning, modal shift to encourage people to choose more efficient forms of transport, and making existing transport modes more efficient.
Car free city
The concept of car free cities or a city with large pedestrian areas is often part of the design of a sustainable city. A large part of the carbon footprint of a city is generated by cars so the car free concept is often considered an integral part of the design of a sustainable city. Large parts of London city are to be made car-free to allow people to walk and cycle safely following the COVID-19 lockdown. Similarly, 47 miles of bike lanes are planned to be opened in Bogotá, Colombia in addition to the existing 75-mile network of streets that was recently made to be traffic-free all week. New urbanism frees residents of Masdar City, UAE from automobiles and makes possible walkable and sustainable communities by integrating daily facilities such as plazas and sidewalks into the neighborhoods. Public transit systems like the Group Rapid Transit and the Metro provide direct access to wide areas of Masdar, as well as Abu Dhabi’s CBD, and other parts of the city. The COVID-19 pandemic gave birth to proposals for radical change in the organisation of the city, such as the Manifesto for the Reorganisation of the city after COVID19, published in Barcelona and signed by 160 academics and 300 architects, being the elimination of the car one of the key elements.
Emphasis on proximity
Created by eco-friendly urban planning, the concept of urban proximity is an essential element of current and future sustainable transportation systems. This requires that cities be built and added onto with appropriate population and landmark density so that destinations are reached with reduced time in transit. This reduced time in transit allows for reduced fuel expenditure and also opens the door to alternative means of transportation such as bike riding and walking. Furthermore, close proximity of residents and major landmarks allows for the creation of efficient public transportation by eliminating long sprawled out routes and reducing commute time. This in turn decreases the social cost to residents who choose to live in these cities by allowing them more time with families and friends instead by eliminating part of their commute time.
Melbourne is leading the way in creating the 20-minute neighbourhood where biking, walking or using public transport can get you to work, shops or a government agency within 20 minutes. Paris is experimenting with a similar concept in the Rue de Rivoli area where travel time for any destination is capped at 15 minutes.
Diversity in modes of transportation
Sustainable transportation emphasizes the use of a diversity of fuel-efficient transportation vehicles in order to reduce greenhouse emissions and diversity fuel demand. Due to the increasingly expensive and volatile cost of energy, this strategy has become very important because it allows a way for city residents to be less susceptible to varying highs and lows in various energy prices.Among the different modes of transportation, the use alternative energy cars and widespread installation of refueling stations has gained increasing importance, while the creation of centralized bike and walking paths remains a staple of the sustainable transportation movement.Tesla is one of the pioneers in creating electric vehicles, which is said to reduce CO2 footprints of cars. More companies globally are developing their own versions of electric cars and public transport to promote sustainable transportation.
Access to transportation
In order to maintain the aspect of social responsibility inherent within the concept of sustainable cities, implementing sustainable transportation must include access to transportation by all levels of society. Due to the fact that car and fuel cost are often too expensive for lower-income urban residents, completing this aspect often revolves around efficient and accessible public transportation. Social inclusion is a key goal of the United Nations Sustainable Development Goal 11 – Sustainable Cities and Communities.In order to make public transportation more accessible, the cost of rides must be affordable and stations must be located no more than walking distance in each part of the city. As studies have shown, this accessibility creates a great increase in social and productive opportunity for city residents. By allowing lower-income residents cheap and available transportation, it allows for individuals to seek employment opportunities all over the urban center rather than simply the area in which they live. This in turn reduces unemployment and a number of associated social problems such as crime, drug use, and violence.
Smart transportation
In this age of smart cities, many smart solutions are being experimented with to regulate transportation and make public transport more efficient. Israel is reinventing commute by engaging in a public-private partnership that uses algorithms to route public transport according to needs. Using the concept of mobility as a service (MaaS), the people of Israel are encouraged to put in their destination on a mobile application; this data is then processed by the application to reroute transportation according to demands and options of different modes of transportation are suggested to the commuters to choose from. This decreases futile trips and helps the government regulate the number of people in a train or a bus at a time, especially useful in times of a pandemic like the COVID-19 pandemic.
Urban strategic planning
Although there is not an international policy regarding sustainable cities and there are not established international standards, the organization United Cities and Local Governments (UCLG) is working to establish universal urban strategic guidelines. The UCLG is a democratic and decentralized structure that operates in Africa, Eurasia, Latin America, North America, Middle East, West Asian and a Metropolitan section work to promote a more sustainable society. The 60 members of the UCLG committee evaluate urban development strategies and debate these experiences to make the best recommendations. Additionally, the UCLG accounts for differences in regional and national context. All the organizations are making a great effort to promote this concept by media and Internet, and in conferences and workshops. An International conference was held in Italy at Università del Salento and Università degli Studi della Basilicata, called 'Green Urbanism', from 12 to 14 October 2016.
Development
Recently, local and national governments and regional bodies such as the European Union have recognized the need for a holistic understanding of urban planning. This is instrumental to establishing an international policy that focuses on cities challenges and the role of the local authorities responses. The sustainable development of urban areas is crucial since more than 56% of the world's population lives in cities. Cities are in the lead of climate action, while being responsible for an estimated 75% of the world's carbon emissions.Generally, in terms of urban planning, the responsibility of local governments are limited to land use and infrastructure provision excluding inclusive urban development strategies. The advantages of urban strategic planning include an increase in governance and cooperation that aids local governments in establishing performance based-management, clearly identifying the challenges facing local community and more effectively responding on a local level rather than national level, and improves institutional responses and local decision making. Additionally, it increases dialogue between stakeholders and develops consensus-based solutions, establishing continuity between sustainability plans and change in local government; it places environmental issues as the priority for the sustainable development of cities and serves as a platform to develop concepts and new models of housing, energy and mobility.
Obstacles
The City Development Strategies (CDS) addresses new challenges and provides space for innovative policies that involves all stakeholders. The inequality in spatial development and socio-economic classes paired with concerns of poverty reduction and climate change are factors in achieving global sustainable cities, as highlighted by the United Nations Sustainable Development Goal 11. According to the UCLG there are differences between regional and national conditions, framework and practice that are overcome in the international commitment to communication and negotiation with other governments, communities and the private sector to continue to develop through innovative and participatory approaches in strategic decisions, building consensus and monitoring performance management and raising investment.
Social factors of sustainable cities
According to the United Nations Development Programme (UNDP), over half of the world's population is concentrated in cities, a proportion which is expected to rise to two-thirds by 2050. United Cities and Local Governments has specifically identified 13 global challenges to establishing sustainable cities: demographic change and migration, globalisation of the job market, poverty and unmet Millennium Development Goals, segregation, spatial patterns and urban growth, metropolisation and the rise of urban regions, more political power for local authorities, new actors for developing a city and providing services, decline in public funding for development, the environment and climate change, new and accessible building technologies, preparing for uncertainty and limits of growth and global communications and partnerships.
Social equity
Gender
Gender associates an individual with a set of traits and behaviors that are construed to be female and/or male by society. Gender is a key part of a person's identity, which can influence their experiences and opportunities as they navigate through life. This is no different for how gender impacts how they navigate through the built environment.
Men and women experience the built environment differently. For over two decades, professionals in urban planning have called for the routine consideration of gender relations and gendered experiences in the urban design process. Specifically, city planners emphasize the need to account for systemic differences in people's lived experiences by gender, when designing built environments that are safe and equitable. This applies to the development of climate resilient cities.
Women represent 80% of people who've been displaced by the climate crisis. Women are more vulnerable to the impacts of climate change because of the roles they are socially assigned by gender. For instance, women are primarily responsible for food provision in the household. Unprecedented patterns in the frequency and magnitude of floods and droughts – due to climate change – directly impact the caregiving responsibilities of many women, causing them to disproportionately suffer from the consequences of these natural disasters.
The inequitable distribution of the burden of climate change by gender is unjust and must be addressed in the design of sustainable cities. Achieving gender equality is not only ethically important but economically smart, since supporting female development benefits economic growth. Moreover, it's socially and economically relevant to design sustainable cities not only for women, but by women.
Notable women spearheading the sustainable city movement include mayors Anne Hidalgo, Ada Colau Ballano, Claudia Lopez, Yvonne Aki-Sawyerr, Muriel Bowser, Patricia de Lille, Helen Fernandez, and Clover Moore. Other female leaders include Christina Figueres, Patricia Espinosa, Laurence Tubiana, and Hakima El Haite.
Race and Income
Mobility or the ability to move/go places is essential to daily life. Our mobility is primarily determined by the transportation infrastructure that surrounds us. Throughout US history, mobility and right to place have been regulated through codified social rules of who can go where, and how. Many of these rules were drawn along racial/ethnic and nationalistic lines.
Discriminatory housing and transit policies, like red lining, have compounded the oppressive living conditions marginalized racial groups have been subjected to centuries, and have limited the socioeconomic opportunities of future generations. The legacies of these discriminatory policies are responsible for many environmental injustices we see today.
Environmental injustice refers to the unequal distribution of risk to environmental threats, with vulnerable populations – e.g., people of low- and middle-income (LMI) and people of color (POC) – experiencing the greatest exposure and least protection. Environmental injustice is pervasive and manifests in many ways, from contaminated drinking water to mold-infested housing stock. One example of environmental injustice is the varying burden of heat exposure on different racial and socioeconomic groups.
Urban areas often experience higher surface temperatures than less developed regions because the concentrated impermeable surfaces are good at absorbing heat, creating the “heat-island” effect mentioned earlier. The risk of adverse health effects caused by the heat island effect is and will be compounded by the increasing frequency in heat waves due to the climate crisis. This threat is quite dangerous for vulnerable populations – including infants and the elderly – who lack access to air conditioning and/or tree coverage to cool down. This limited adaptive capacity to urban heat is concentrated in LMI and historically segregated neighborhoods.Specifically, neighborhoods in cities that were historically targeted by redlining and divestment experience higher average land surface temperatures than surrounding areas. These differences in surface temperatures embody the legacy of discriminatory housing policies in the US, and highlight how historic urban planning practices will interact with the effects of the climate crisis. We must create the sustainable cities of the future with these historic practices in mind. The heat island effect also exacerbates the impacts of another form of environmental injustice that disproportionately affects minority and low-income groups: air pollution.
Urban infrastructure projects that produce environmental toxins – like industrial plants and highways – are frequently built near or in LMI and POC communities because of favorable zoning codes, cheaper land prices, and less political backlash. This is not because residents don't care, but because they often lack the time, resources, and connections necessary to prevent such construction. In turn, pollutant-producing operations disproportionately impact LMI and POC communities, harming the health outcomes of these groups.A study by the University of Minnesota found that if nitrogen dioxide levels (NO2 – a product of the combustion of fossil fuels) in non-white communities were reduced to equal those in white communities, there would be around 7,000 fewer deaths from heart disease per year. This mortality disparity highlights the health impacts of discriminatory zoning and urban planning policies, which disproportionately expose LIM and POC communities to air pollution. The disparity also shows how much we have to gain from sustainable transportation reform which eliminates combustion-engine vehicles.The inequitable breakdown of exposure to environmental risks by race and income reinforces the understanding that the climate crisis is a social issue, and that environmental justice depends upon racial justice. There is no one right way to address these issues. Proposed solutions include eliminating single-family zoning, pricing a minimum proportions of housing units for LMI households, and requiring community engagement in future urban planning projects. To select the best combination of solutions to create sustainable cities tailored to their environments, each city must be designed for all community members, by all community members.
Leaders in the environmental justice movement include Robert Bullard, Benjamin Chavis, Peggy Shepard, Kandi Moseett-White, Mustafa Santiago Ali, Jamie Margolin, Elizabeth Yeampierre, LeeAnne Walters, and Dana Johnson.
Examples
Australia
Adelaide
Urban forests
In Adelaide, South Australia (a city of 1.3 million people) Premier Mike Rann (2002 to 2011) launched an urban forest initiative in 2003 to plant 3 million native trees and shrubs by 2014 on 300 project sites across the metro area. The projects range from large habitat restoration projects to local biodiversity projects. Thousands of Adelaide citizens have participated in community planting days. Sites include parks, reserves, transport corridors, schools, water courses and coastline. Only trees native to the local area are planted to ensure genetic integrity. Premier Rann said the project aimed to beautify and cool the city and make it more liveable; improve air and water quality and reduce Adelaide's greenhouse gas emissions by 600,000 tonnes of CO2 a year. He said it was also about creating and conserving habitat for wildlife and preventing species loss.
Solar power
The Rann government also launched an initiative for Adelaide to lead Australia in the take-up of solar power. In addition to Australia's first 'feed-in' tariff to stimulate the purchase of solar panels for domestic roofs, the government committed millions of dollars to place arrays of solar panels on the roofs of public buildings such as the museum, art gallery, Parliament, Adelaide Airport, 200 schools and Australia's biggest rooftop array on the roof of Adelaide Showgrounds' convention hall which was registered as a power station.
Wind power
South Australia went from zero wind power in 2002 to wind power making up 26% of its electricity generation by October 2011. In the five years preceding 2011 there was a 15% drop in emissions, despite strong economic growth.
Waste recycling
For Adelaide the South Australian government also embraced a Zero Waste recycling strategy, achieving a recycling rate of nearly 80% by 2011 with 4.3 million tonnes of materials diverted from landfill to recycling. On a per capita basis, this was the best result in Australia, the equivalent of preventing more than a million tonnes of CO2 entering the atmosphere. In the 1970s container-deposit legislation was introduced. Consumers are paid a 10 cent rebate on each bottle, can, or container they return to recycling. In 2009 non-reusable plastic bags used in supermarket checkouts were banned by the Rann Government, preventing 400 million plastic bags per year entering the litter stream. In 2010 Zero Waste SA was commended by a UN Habitat Report entitled 'Solid Waste Management in the World Cities'.
Melbourne
City of Merri-bek. The City of Merri-bek in Melbourne's north, has programs for becoming carbon neutral, one of which is 'Zero Carbon Merri-bek', amongst other existing sustainable implementations and proposals.
City of Melbourne. Over the past 10 years, various methods of improving public transport have been implemented, car free zones and entire streets have also been implemented.
Sydney
Sydney was ranked the most sustainable city in Australia by the 2018 Arcadis Sustainable Cities Index. While most cities in Australia ranked low in the green sustainability categories, a lot of them have made a remarkable shift to improve social sustainability by being more inclusive, supporting culture and general happiness among its people.
City of Greater Taree, New South Wales
The City of Greater Taree north of Sydney has developed a masterplan for Australia's first low-to-no carbon urban development.
Austria
Vienna is aiming for only 20% of trips to be made by automobile.
Brazil
Belo Horizonte, Brazil was created in 1897 and is the third-largest metropolis in Brazil, with 2.4 million inhabitants. The Strategic Plan for Belo Horizonte (2010–2030) is being prepared by external consultants based on similar cities' infrastructure, incorporating the role of local government, state government, city leaders and encouraging citizen participation. The need for environmentally sustainable development is led by the initiative of new government following planning processes from the state government. Overall, the development of the metropolis is dependent on the land regularization and infrastructure improvement that will better support the cultural technology and economic landscape. Despite being a developing or newly industrialized nation, it is home to two sustainable cities. The southern cities of Porto Alegre and Curitiba are often cited as examples of urban sustainability.
Cameroon
Bafut, is a town and traditional kingdom which is working towards becoming an eco-city by 2020, through the Bafut Council Eco-city Project.
Canada
Since 2016 the Green Score City Index has been studying the urban footprints of Canadian cities. It uses recognized governmental and institutional data to calculate the urban footprints of 50 cities.
Vancouver had 2018's highest green score for large cities.
Burlington had 2018's highest green score for medium cities.
Victoria had 2018's highest green score for small cities.Most cities in Canada have sustainability action plans which are easily searched and downloaded from city websites.
In 2010, Calgary ranked as the top eco-city in the planet for its, "excellent level of service on waste removal, sewage systems, and water drinkability and availability, coupled with relatively low air pollution." The survey was performed in conjunction with the reputable Mercer Quality of Living Survey.
China
The Chinese government has launched three sustainable city programs to promote pilot projects and foster innovation. Beginning in the early 2000s, China acknowledged the importance of sustainable development in addressing the challenges brought about by rapid urbanization and industrialization. As a result, hundreds of eco-city projects have been initiated throughout the country, making China home to the world's largest eco-city program.
Tianjin: Sino-Singapore Tianjin Eco-city is a large and one of the very first ecocity collaboration project created with the cooperation between China and Singapore, in November 2007, covering an area of 31.23 km². Locating at Binhai, Tianjin, it has been rated as the Eco-city with the most living experience in 2018.
Dongtan Eco-city, Shanghai: The project, located in the east of Chongming Island developed by Arup and Parthers, was scheduled to accommodate 50,000 residents by 2010, but its developer has currently put construction on hold. An additional project was made in 2007 in this area: an Eco-Village based on the concept made by an Italian professor from the School of Architecture of Tianjin University.
Huangbaiyu, Benxi, Liaoning is a small village of 42 homes that has come under great criticism: most of the homes are unoccupied by villagers.
Nanjing: As of April 2008, an ecocity collaboration project is being proposed here.
Rizhao, Shandong mandates solar water heaters for households, and has been designated the Environmental Model City by China's SEPA.
Chengdu Tianfu District Great City is a planned city located just outside Chengdu that is planned to be sustainable and has the goal of being a self-sustaining city that discourages the use of cars.
Dalian, Liaoning: The 100 MW Dalian Flow Battery Energy Storage Peak-shaving Power Station, with the largest power and capacity in the world so far, was connected to the grid in Dalian, China, on September 29, and it was put into operation in mid-October.
Denmark
Two comprehensive studies were carried out for the whole of Denmark in 2010 (The IDA Climate Plan 2050) and 2011 (The Danish Commission on Climate Change Policy). The studies analysed the benefits and obstacles of running Denmark on 100% renewable energy from the year 2050. There is also a larger, ambitious plan in action: the Copenhagen 2025 Climate Plan.
On a more local level, the industrial park in Kalundborg is often cited as a model for industrial ecology. However, projects have been carried out in several Danish cities promoting 100% renewable energy. Examples include Aalborg, Ballerup and Frederikshavn. Aalborg University has launched a master education program on sustainable cities (Sustainable Cities @ Aalborg University Copenhagen). See also the Danish Wikipedia.
Copenhagen: Cycling in Copenhagen: One of the most bicycle-friendly city's in the world where over 50% of the population get around on bikes. The city has infrastructure that caters to cycling with hundreds of kilometres of curb segregated bike lanes to separate cyclists and car traffic. A notable feature is The Cycle Super Highways which feature elevated bike lanes which ensure fast, unhindered travel between destinations. The city is aiming for just 25% of trips to be made by automobile.
Ecuador
Loja, Ecuador won three international prizes for the sustainability efforts begun by its mayor Dr. Jose Bolivar Castillo.: 25
Estonia
Oxford Residences for four seasons in Estonia, winning a prize for Sustainable Company of the Year, is arguably one of the most advanced sustainable developments, not only trying to be carbon neutral, but already carbon negative.
Finland
The Finnish city of Turku has adopted a "Carbon Neutral Turku by 2040" strategy to achieve carbon neutrality via combining the goal with circular economy.
VTT Technical Research Centre of Finland has formulated an EcoCity concept tailored to address the unique requirements of developing countries and emerging economies. Prominent reference examples include EcoCity Miaofeng in China, EcoNBC in Egypt, EcoGrad in St. Petersburg, Russia, UN Gigiri in Kenya, and MUF2013 in Tanzania.
France
In Paris, bike lanes are being doubled, while electric car incentives are being created. The French capital is banning the most polluting automobiles from key districts.
Germany
Freiburg im Breisgau often refers to itself as a green city. It is one of the few cities with a Green mayor and is known for its strong solar energy industry. Vauban, Freiburg is a sustainable model district. All houses are built to a low energy consumption standard and the whole district is designed to be car-free.
Another green district in Freiburg is Rieselfeld, where houses generate more energy than they consume. There are several other green sustainable city projects such as Kronsberg in Hannover and current developments around Munich, Hamburg, and Frankfurt.
Berlin: The Tiergarten (park) is a large park that takes up 520 acres and is an example of social sustainability where it is a green space but also used for transportation. The Tiergarten has inter paths where people can safely bike and walk without the disturbance of cars. Paths connect to notable areas within the city, such as government buildings, shopping areas and monuments. Berlin is mimicking London's "superhighways" for cyclists.
Hong Kong
The government portrays the proposed Hung Shui Kiu New Town as an eco-city. The same happened with the urban development plan on the site of the former Kai Tak Airport.
Iran
Isfahan dedicated smart city office began buildings architectures sustaintability programs in May 2022.
Ireland
South Dublin County Council announced plans in late 2007 to develop Clonburris, a new suburb of Dublin to include up to 15,000 new homes, to be designed to achieve the highest of international standards. The plans for Clonburris include countless green innovations such as high levels of energy efficiency, mandatory renewable energy for heating and electricity, the use of recycled and sustainable building materials, a district heating system for distributing heat, the provision of allotments for growing food, and even the banning of tumble driers, with natural drying areas being provided instead.
In 2012 an energy plan was carried out by the Danish Aalborg University for the municipalities of Limerick and County Clare. The project was a short-term 2020 renewable energy strategy giving a 20% reduction in CO2 emissions, while ensuring that short-term actions are beneficial to the long-term goal of 100% renewable energy.
India
India is working on Gujarat International Finance Tec-City or GIFT which is an under-construction world-class city in the Indian state of Gujarat. It will come up on 500 acres (2.0 km2) land. It will also be first of its kind fully Sustainable City.
Auroville was founded in 1968 with the intention of realizing human unity, and is now home to approximately 2,000 individuals from over 45 nations around the world. Its focus is its vibrant community culture and its expertise in renewable energy systems, habitat restoration, ecology skills, mindfulness practices, and holistic education.
The new capital of Andhra Pradesh is also planned to be a sustainable city in the future. As a part of the UN Global Sustainable Development Goals (SDG) cities initiative, Noida in Uttar Pradesh was selected in 2018 to become one of 25 cities in the world to become models of SDGs by 2025.
Indonesia
The cities of Bandung, Cimahi, and Soreang in Indonesia become world leaders in zero waste cities program after significantly reducing the amount of waste and improving its management.
Korea
Songdo IBD is a planned city in Incheon which has incorporated a number of eco-friendly features. These include a central park irrigated with seawater, a subway line, bicycle lanes, rainwater catchment systems, and pneumatic waste collection system. 75% of the waste generated by the construction of the city will be recycled.
Gwanggyo City Centre is another planned sustainable city.
Malaysia
As of 2014 a Low Carbon Cities programme is being piloted in Malaysia by KeTTHA, the Malaysian Ministry of Energy, Green Technology and Water, Malaysian Green Technology Corporation (GreenTech Malaysia) and the Carbon Trust.
Malacca has a stated ambition to become a carbon-free city, taking steps towards creating a smart electricity grid. This is being done as part of an initiative to create a Green Special Economic Zone, where it is intended that as many as 20 research and development centers will be built focusing on renewable energy and clean technology, creating up to 300,000 new green jobs.
The Federal Department of Town and Country Planning (FDTCP) in peninsular Malaysia is a focal point for the implementation of the Malaysian Urban Rural National Indicators Network for Sustainable Development (MURNInets), which includes 36 sets of compulsory indicators grouped under 21 themes under six dimensions. Most of the targets and standards for the selected indicators were adjusted according to hierarchy of local authorities. In MURNInets at least three main new features are introduced. These include the Happiness Index, an indicator under the quality of life theme to meet the current development trend that emphasizes on the well-being of the community. Another feature introduced is the customer or people satisfaction level towards local authorities' services. Through the introduction of these indicators the bottom-up approach in measuring sustainability is adopted.
Morocco
Planned for 2023, Zenata is the first African city to be awarded the Eco-City Label. It will include a total of 470 hectares of green spaces. It will also have water retention basins and promotes groundwater recharge and afforestation of the site. The naturally irrigated parks leading to the sea are designed as ecological corridors.
New Zealand
Waitakere City, a local body that formerly existed in West Auckland, was New Zealand's first eco-city, working from the Greenprint, a guiding document that the City Council developed in the early 1990s.
Norway
Oslo city was ranked first in the 2019 SDG Index and Dashboards Report for European Cities with a high score of 74.8. In order to achieve its ambitious targets for reducing carbon emissions in the European Green City index, Oslo plans to convert cities to biofuels and has considerably reduced traffic by 4–7% by introducing a congestion charge. Its aim is to cut-down emissions by 50 per cent since 1990 and it has taken a number of transportation, waste recycling, energy consumption and green space measures among others to meet its target.
Philippines
Clark Freeport Zone is a former United States Air Force base in the Philippines. It is located on the northwest side of Angeles City and on the west side of Mabalacat City in the province of Pampanga, about 40 miles (60 km) northwest of Metro Manila. A multi-billion project will convert the 36,000 ha (89,000 acres) former Clark Air Force Base into a mix of industrial, commercial and institutional areas of green environment. The heart of the project is a 9,450-hectare metropolis dubbed as the "Clark Green City". Builders will use the green building system for environmentally-friendly structures. Its facilities will tap renewable energy such as solar and hydro power.
Portugal
The organization Living PlanIT is currently constructing a city from scratch near Porto, Portugal. Buildings will be electronically connected to vehicles giving the user a sense of personal eco-friendliness.
Pakistan
Islamabad The capital of Pakistan is full of green spaces and is an eco friendly city.
Spain
Bilbao: The city faced economic turmoil following the decline of the steel and port industries but through communication between stakeholders and authorities to create inner-city transformation, the local government benefited from the increase in land value in old port areas. The Strategic Plan for the Revitalisation of Metropolitan Bilbao was launched in 1992 and have flourished regenerating old steel and port industries. The conversion from depleted steel and port industries to one of Europe's most flourishing markets is a prime example of a sustainable project in action.
Barcelona: The city is planning an urban redesign of civic super blocks, they plan to convert nine-block areas into unified mega block neighbourhoods. The aim is to decrease car-related traffic, noise and pollution by over 20% and to free up to 60% of road areas for reuse as citizen spaces. This is being done because they realized that people in Barcelona die prematurely due to poor air quality and everyday noise levels are deemed harmful. By converting roads to spaces for festivals, farmer markets, bikes, and walkability it promotes a healthier lifestyle and potentially a happier one. In 2020, the European Investment Bank approved a €95 million loan to assist Barcelona in the completion of approximately 40 projects, with an emphasis on climate change and social inequity. The city plans to redevelop streets to create more space for pedestrians and bicyclists, enhance building energy efficiency, and expand social, cultural, and recreational opportunities.
Madrid: In 2018, Madrid banned all non-resident vehicles from its downtown areas.
Saudi Arabia
Saudi Arabia recently unveiled a proposed one of the most ambitious eco-city projects; Neom. Development is planned in the northwest region of the country along the Red Sea and would cover over 26,500 sq-km (10,230 sq-miles). Some of the most notable aspects of this development are The Line and Oxagon. The Line is advertised as a smart city that will stretch for 170 km with easily accessible amenities throughout. Oxagon is a planned floating city off the coast. If built, it will be the largest city.
Sweden
Norra Älvstranden (Swedish), in Gothenburg by the river Göta älv, is an example of a sustainable city in Sweden. It has low environmental impact, and contains passive houses, recycling system for waste, etc.
Hammarby Sjöstad
Västra Hamnen or Bo01, Malmö
Stockholm Royal Seaport
United Arab Emirates
Masdar City, Abu Dhabi is a planned city that relies entirely on solar energy and other renewable energy sources, with a sustainable, zero-carbon, zero-waste ecology.
Dubai The Sustainable City, Dubai
United Kingdom
London has committed to reaching net-zero carbon emissions by 2050. To do so, it aims to drastically reduce the proportion of trips made by cars and also ban all new petrol and diesel cars by 2035. Similarly, according to the UK Green Building Council, 40 per cent of UK's total carbon footprint comes from the built environment. Steel, which is used to make skyscrapers, is responsible for 7 per cent of the global CO2 emissions. Timber, especially CLT is a being considered as a great alternative to reduce construction-based emissions.
The built environment is responsible for around 40% of the UK's total carbon footprint, according to the UK Green Building Council
London Borough of Sutton is the first One Planet Region in the United Kingdom, with significant targets for reducing the ecological footprint of residents and creating the UK's greenest borough.
Middlesbrough is another One Planet Region in the United Kingdom.
Milton Keynes' original design concept aimed for a "forest city" and the foresters of the designers planted millions of trees from its own nursery in Newlands in the following years. Parks, lakes and green spaces cover about 25% of Milton Keynes; as of 2018, there are 22 million trees and shrubs in public open spaces.
St Davids, the smallest city in the United Kingdom, aims to be the first carbon-neutral city in the world.
Leicester is the United Kingdom's first environment city.
United States
Arcosanti, Arizona
Coyote Springs Nevada largest planned city in the United States.
Babcock Ranch Florida a proposed solar-powered city.
Douglass Ranch in Buckeye Arizona
Mesa del Sol in Albuquerque, New Mexico
San Francisco, California is ranked the most sustainable city in the United States according to the 2019 US Cities Sustainable Development Report. Treasure Island, San Francisco: is a project that aims to create a small eco city.
Sonoma Mountain Village in Rohnert Park, California*
See also
See also the Sustainability navigational box at the bottom of the page.
Notes
Further reading
Helmut Bott, Gregor Grassl, Stephan Anders (2019) Sustainable Urban Planning: Vibrant Neighbourhoods – Smart Cities – Resilience, DETAIL Publishers, Volume 1, ISBN 978-3-95553-462-2
Stanislav E. Shmelev and Irina A. Shmeleva (2009) "Sustainable cities: problems of integrated interdisciplinary research", International Journal of Sustainable Development, Volume 12, Number 1, 2009, pp. 4 – 23
Richard Register (2006) Ecocities: building cities in balance with nature, New Society Publishers. ISBN 0-86571-552-1.
Shannon May (2008) "Ecological citizenship and a plan for sustainable development", City,12:2,237 — 244
Timothy Beatley (1997) Eco-city dimensions : healthy communities, healthy planet, New Society Publishers. ISBN 0-86571-353-7, OCLC 36695680.
Richard Register (1987) Ecocity Berkeley: building cities for a healthy future, North Atlantic Books. ISBN 1-55643-009-4.
Sim Van der Ryn and Peter Calthorpe (1986) Sustainable communities: a new design synthesis for cities, suburbs, and towns, Sierra Club Books. ISBN 0-87156-629-X.
Paolo Soleri (1973) Arcology : the city in the image of man, MIT Press. ISBN 0-262-19060-5.
Ian L. McHarg (1969) Design with nature, Published for the American Museum of Natural History [by] the Natural History Press.
Federico Caprotti (2014) Eco-urbanism and the Eco-city, or, Denying the Right to the City?, Antipode, Volume 46, Issue 1, pp. 1285-1303
Simon Joss (2015) Eco-cities and Sustainable Urbanism, International Encyclopedia of the Social & Behavioral Sciences (Second Edition). ISBN 978-0-08097-086-8
External links
Eco Cities in China Publications by Anthropologist Shannon May on the transformation of Huangbaiyu, China into an Eco Village
Ecocity Summit 2009 ISTANBUL – TURKIYE
ECOPOLIS
Green Score City Index, GreenScore.eco
Ecotopia 2121. An Atlas of 100 "Visionary Super-Green" cities of the future from around the world.
Los Angeles: A History of the Future
Resource Guide on Sprawl and the New Urbanism edited by Deborah Sommer, Environmental Design Library, University of California, Berkeley.
Vattenfall Sustainable Cities
Manifesto for the Reorganisation of the City after COVID19 | author: Massimo Paolini [20 April 2020]
Sustainable Cities, Terrain.org
Which way China? Herbert Girardet, 2006 October 42, chinadialogue. Discusses the emergence of ecocities in China.
Working Group for Sustainable Cities at Harvard University |
environmental issues in pakistan | Environmental issues in Pakistan include air pollution, water pollution, noise pollution, climate change, pesticide misuse, soil erosion, natural disasters, desertification and flooding. According to the 2020 edition of the environmental performance index (EPI) ranking released by Yale Center for Environmental Law & Policy, Pakistan ranks 142 with an EPI score of 33.1, an increase of 6.1 over a 10-year period. It ranked 180 in terms of air quality. The climatic changes and global warming are the most alarming issues risking millions of lives across the country. The major reasons of these environmental issues are carbon emissions, population explosion, and deforestation.These are serious environmental problems that Pakistan is facing, and they are getting worse as the country's economy expands and the population grows. Although some NGOs and government departments have taken initiatives to stop environmental degradation, Pakistan's environmental issues still remain. Pakistan is facing a significant challenge as its natural resources and ecosystems encounter increasing pollution and strain. The foremost environmental concerns in the country revolve around the excessive use of limited natural resources, contamination of air and water, diminishing energy reserves, the reduction of forests, and the management of waste.
Economic consequences of environmental degradation
The majority of Pakistan's industrial sectors, for example fishing and agriculture, which account for more than one-fourth of the output and two-fifths of employment in Pakistan, are highly dependent on the country's natural resources. Hence, in order to sustain economic growth there is a high demand on already scarce natural resources. However it is ironic that what the country depends on for its growth is also what threatens the future welfare and success of the country. According to the World Bank, 70% of Pakistan's population live in rural areas and are already stricken by high poverty levels. These people depend on natural resources to provide income and tend to overuse these resources. This leads to further degradation of the environment and subsequently increases poverty. This has led to what the World Bank refers to as a "vicious downward spiral of impoverishment and environmental degradation."
Pollution
The World Bank report in 2013 stated that Pakistan's top environmental issues include air pollution, inadequate supply of uncontaminated drinking water, noise pollution and the health deterioration of urban and rural populations due to pollution. These environmental concerns not only harm Pakistani citizens but also pose a serious threat to the country's economy. The report also stated that the increase in industrialization, urbanization and motorization will inevitably worsen this problem. Pakistan holds the dubious distinction of being the world's third-most polluted country when it comes to air quality, compounding its environmental challenges. The swift pace of urbanization, coupled with population growth, presents further intricacies in this regard.
Water pollution
Pakistan is classified as a water stressed nation by the World Bank. There are seven main rivers that enter Pakistan from upper riparian states, including the Kabul River that enters from Afghanistan, and the Indus River, Jhelum River, Chenab River, Ravi River, and Sutlej River that enter from India. Among these, the Ravi and Sutlej are diverted in upstream India, for which consumptive use was awarded to India under the Indus Waters Treaty signed in 1960 by India and Pakistan. Canal networks from the Indus (main stem), Jhelum River, and Chenab River supply water throughout the agricultural plains in Punjab and in Sindh, while the rest of the country has very little access to other fresh water. Potential scarcity of water not only threatens Pakistan's economy but also poses a serious threat to the lives of millions of Pakistanis.
Lower flows due to the Indus Waters Treaty, as well as diversion to canals, means that lower dilution flows are available within the rivers of Pakistan. On the other hand, water pollution generation is increasing largely due to the growing economy and population, and an almost complete lack of water treatment. The sources for water pollution include the overuse of chemical fertilizers and pesticides, the dumping of industrial effluent into lakes and rivers, untreated sewage being dumped into rivers and the ocean, and contaminated pipelines being used to transport water. The contamination of fresh drinking water makes it harder for people to find clean water supplies and increases the prevalence of waterborne diseases. Consequently, most of the reported health problems in Pakistan are either a direct or indirect result of polluted water. 45% of infant deaths are due to diarrhea and 60% to overall waterborne diseases.According to researchers, Pakistan is projected to become the most water-stressed country in the region by the year 2040.
Noise pollution
The megacities of Pakistan, such as Karachi, Lahore, Islamabad and Rawalpindi, face the issue of noise pollution. The main source of this pollution is the traffic noise caused by buses, cars, trucks, rickshaws and water tankers. A study showed that on one of Karachi's main roads, the average noise level was around 90 dB and was capable of reaching about 110 dB. This is much higher than the ISO's noise level standard of 70 dB, which is not meant to be harmful to the human ear. However, the study also concluded that in Pakistan, "the traffic noise levels limit as laid down by National Environment Quality standards, Environmental Protection Agency is 85 dB".This high level of noise pollution can cause auditory and non-auditory health issues. Auditory issues include the loss of auditory sensory cells; non-auditory health issues include sleep disturbance, noise and cardiovascular disease, endocrine response to noise and psychiatric disorder. There are very few, vague laws and policies in regards to noise levels. There is no accountability, and while the federal and provincial environmental protection agencies receive dozens of complaints on noise pollution from the public, these agencies are unable to take action due to legal constraints and the absence of national noise level standards.
Air pollution
Air pollution is a growing environmental problem in most major cities of Pakistan. According to a World Bank report, "Karachi's urban air pollution is among the most severe in the world and it engenders significant damages to human health and the economy". The inefficient use of energy, an increase in the number of vehicles used daily, an increase in unregulated industrial emissions and the burning of garbage and plastic have contributed the most to air pollution in urban areas. According to a recent study, the Sindh Environment Protection Department claims that the average level of pollution in big cities is approximately four times higher than the World Health Organisation's limits. These emissions have detrimental effects, including "respiratory diseases, reduced visibility, loss of vegetation and an effect on the growth of plants".
One of the greatest contributors to air pollution is industrial activity. The inadequate air emission treatments and lack of regulatory control over industrial activity has contributed to the deterioration of ambient air quality in major cities. In addition, the common practice of burning massive amounts of solid waste, including plastic and rubber, on street corners by the public, releases toxic gases, which are extremely harmful for residents in the area.
In 2018, a young entrepreneur in Karachi, Abid Omar, launched the Pakistan Air Quality Initiative to monitor air quality in Pakistan's big cities. The project aims to increase the availability of air quality data in Pakistan and make citizens more aware of the health impacts of air pollution. The US State Department has set up three high-quality air quality monitoring stations at three locations in Pakistan.Specifically, studies have revealed the negative consequences air pollution can have on the welfare of those impacted. Studies have revealed how the constant fluctuation of particulate matter poses a major threat to Pakistan's citizens who are frequently exposes to harmful levels of air pollution. Suspended Particulate Matter, which has been linked to respiratory illnesses has been found in harmful quantities in Pakistan's major urban areas. Some strategies that can be used to effectively manage Pakistan's urban air pollution problems include the advancements to road design and improvement of transport sustainability, increased use of abatement policy by the Pakistani government, and a conversion to clean fuel energy alternatives like CNG.
Climate change
Natural disasters
Due to Pakistan's diverse land and climatic conditions, it is prone to different forms of natural disasters, including earthquakes, floods, tsunamis, droughts, cyclones and hurricanes. A disaster management report claims that the provinces of Gilgit-Baltistan (GB), Balochistan and AJK are vulnerable seismic regions and hence highly susceptible to earthquakes, while Sindh and Punjab constantly suffer from floods because they are low-lying areas.Some of the worst natural disasters that Pakistan has faced include the 1935 Quetta earthquake when around 60,000 people were killed, the 1950 floods when an estimated 2900 people died and 900,000 people were left homeless, the 1974 Hunza earthquake where around 5300 people were killed, the 2005 Kashmir earthquake that killed at least 73,000 and affected more than 1.5 million people, and the 2010 floods, where 20 million people were affected.
Forests
Pakistan had a 2018 Forest Landscape Integrity Index mean score of 7.42/10, ranking it 41st globally out of 172 countries. Yet, deforestation is happening at an alarming rate in Pakistan. The country currently relies heavily on imported wood-based products due to a lack of self-sufficiency in this sector, resulting in substantial resource expenditure. Furthermore, these resources are depleting at a rate of one percent, which is having a significant impact on the well-being of the Pakistani population.
Conservation efforts
The government has expressed concern about environmental threats to economic growth and social development and since the early 1990s has addressed environmental concerns with new legislation and institutions such as the Pakistan Environment Protection Council. However, foreign lenders provide most environmental protection funds, and only 0.04 percent of the government's development budget goes to environmental protection. Thus, the government's ability to enforce environmental regulations is limited, and private industries often lack the funds to meet environmental standards established by international trade organizations. Government of Pakistan start new campaign with Clean and Green Pakistan to overcome environmental issues.
Clean Green Champion Program
An initiative named Clean Green Pakistan was launched in 2019 by the Government of Pakistan. The idea of the initiative was to hold a competition between cities of Pakistan in cleanliness and greenery. A web portal was launched where citizens can get registered and report their activities to earn points. Citizens would also be awarded medals when they reach a certain threshold of points.
Billion Tree Tsunami
The Billion Tree Tsunami was launched in 2014 by the government of Khyber Pakhtunkhwa (KPK) as a response against the challenge of global warming. Pakistan's Billion Tree Tsunami restores 350,000 hectares of forests and degraded land to surpass its Bonn Challenge commitment. The project aimed at improving the ecosystems of classified forests, as well as privately owned waste and farm lands, and therefore entails working in close collaboration with concerned communities and stakeholders to ensure their meaningful participation through effectuating project promotion and extension services. In just a year it has added three-quarters of a billion new trees, as part of a “tree tsunami” aimed at reversing worsening forest loss. The project was completed in August 2017, ahead of schedule.The initiative was acknowledged by international media, namely The Washington Post, VoA News, The Hindu, Reuters, Al Jazeera, and many others. Short films such as Green Election Campaign and Stop are a part of Clean Green Pakistan Effort.
National Conservation Strategy
The Conservation Strategy Report has three explicit objectives: conservation of natural resources, promotion of sustainable development, and improvement of efficiency in the use and management of resources. It sees itself as a "call for action" addressed to central and provincial governments, businesses, non-governmental organizations (NGOs), local communities, and individuals.
The primary agricultural nonpoint source pollutants are nutrients (particularly nitrogen and phosphorus), sediment, animal wastes, pesticides, and salts. Agricultural nonpoint sources enter surface water through direct surface runoff or through seepage to ground water that discharges to a surface water outlet. Various farming activities result in the erosion of soil particles. The sediment produced by erosion can damage fish habitat and wetlands, and often transports excess agricultural chemicals resulting in contaminated runoff. This runoff, in turn, affects changes to aquatic habitat such as temperature increases and decreased oxygen. The most common sources of excess nutrients in surface water from nonpoint sources are chemical fertilizers and manure from animal facilities. Such nutrients cause eutrophication in surface water. Pesticides used for pest control in agricultural operations can also contaminate surface as well as ground-water resources. Return flows, runoff, and leach ate from irrigated lands may transport sediment, nutrients, salts, and other materials. Finally, improper grazing practices in riparian areas, as well as upland areas, can also cause water quality degradation. The development of Pakistan is viewed as a multigenerational enterprise.
In seeking to transform attitudes and practices, the National Conservation Strategy recognizes that two key changes in values are needed: the restoration of the conservation ethic derived from Islamic moral values, called Qantas, and the revival of community spirit and responsibility, Haqooq ul Ibad.
The National Conservation Strategy Report recommends fourteen program areas for priority implementation: maintaining soils in croplands, increasing efficiency of irrigation, protecting watersheds, supporting forestry and plantations, restoring rangelands and improving livestock, protecting water bodies and sustaining fisheries, conserving biodiversity, increasing energy efficiency, developing and deploying renewable resources, preventing or decreasing pollution, managing urban wastes, supporting institutions to manage common resources, integrating population and environmental programs, and preserving the cultural heritage. It identifies sixty-eight specific programs in these areas, each with a long-term goal and expected outputs and physical investments required within ten years. Special attention has been paid to the potential roles of environmental NGOs, women's organizations, and international NGOs in working with the government in its conservation efforts. Recommendations from the National Conservation Strategy Report are incorporated in the Eighth Five-Year Plan (1993–98).
In a recent study conducted by the Global CLEAN campaign, it was found that the average temperature in Pakistan had risen by 0.2 degrees in only two years. This is a dramatic change and puts emphasis on climate change campaigns.
Land use
Arable land - 27%
Permanent crops - 1%
Permanent pastures - 6%
Forests and woodland - 5%
Other - 61% (1993 est.)
Irrigated land - 171,100 km2 (1993 est.)
Protected areas
Pakistan has 14 national parks, 72 wildlife sanctuaries, 66 game reserves, 9 marine and littoral protected areas, 19 protected wetlands and a number of other protected grasslands, shrublands, woodlands and natural monuments.
International agreements
Pakistan is a party to several international agreements related to environment and climate. The most prominent among them are:
See also
Green economy
Geography of Pakistan
Health care in Pakistan
Hydrogen economy
Leapfrogging from natural gas to hydrogen
List of environmental issues
Pakistan Environmental Protection Agency
Protected areas of Pakistan
Wildlife of Pakistan
References
External links
Environment Protection Agency, Pakistan
Resources on Pakistan, Environment and Sustainable Development
This article incorporates text from this source, which is in the public domain. Country Studies. Federal Research Division. |
environmental effects of shipping | The environmental effects of shipping include air pollution, water pollution, acoustic, and oil pollution. Ships are responsible for more than 18% of nitrogen oxides pollution, and 3% of greenhouse gas emissions.Although ships are the most energy-efficient method to move a given mass of cargo a given distance, the sheer size of the industry means that it has a significant effect on the environment. The annual increasing amount of shipping overwhelms gains in efficiency, such as from slow-steaming. The growth in tonne-kilometers of sea shipment has averaged 4 percent yearly since the 1990s, and it has grown by a factor of 5 since the 1970s.The fact that shipping enjoys substantial tax privileges has contributed to the growing emissions.
Ballast water
Ballast water discharges by ships can have a negative impact on the marine environment. Cruise ships, large tankers, and bulk cargo carriers use a huge amount of ballast water, which is often taken on in the coastal waters in one region after ships discharge wastewater or unload cargo, and discharged at the next port of call, wherever more cargo is loaded. Ballast water discharge typically contains a variety of biological materials, including plants, animals, viruses, and bacteria. These materials often include non-native, nuisance, invasive, exotic species that can cause extensive ecological and economic damage to aquatic ecosystems along with serious human health problems.
Sound pollution
Noise pollution caused by shipping and other human enterprises has increased in recent history. The noise produced by ships can travel long distances, and marine species who may rely on sound for their orientation, communication, and feeding, can be harmed by this sound pollution.The Convention on the Conservation of Migratory Species has identified ocean noise as a potential threat to marine life. The disruption of whales' ability to communicate with one another is an extreme threat and is affecting their ability to survive. According to a Discovery Channel article on Sonic Sea Journeys Deep into the Ocean over the last century, extremely loud noise from commercial ships, oil and gas exploration, naval sonar exercises and other sources has transformed the ocean's delicate acoustic habitat, challenging the ability of whales and other marine life to prosper and ultimately to survive. Whales are starting to react to this in ways that are life-threatening. Kenneth C. Balcomb, a whale researcher and a former U.S Navy officer states that the day 15 March 2000, is the day of infamy. Although sonar helps to protect us, it is destroying marine life. According to IFAW Animal Rescue Program Director Katie Moore, "There's different ways that sounds can affect animals. There's that underlying ambient noise level that's rising, and rising, and rising that interferes with communication and their movement patterns. And then there's the more acute kind of traumatic impact of sound, that's causing physical damage or a really strong behavioral response. It's fight or flight".
Wildlife collisions
Marine mammals, such as whales and manatees, risk being struck by ships, causing injury and death. For example, a collision with a ship traveling at only 15 knots has a 79% chance of being lethal to a whale. Ship collisions may be one of the leading causes of population decline for whale sharks.One notable example of the impact of ship collisions is the endangered North Atlantic right whale, of which 400 or fewer remain. The greatest danger to the North Atlantic right whale is injury sustained from ship strikes. Between 1970 and 1999, 35.5% of recorded deaths were attributed to collisions. From 1999 to 2003, incidents of mortality and serious injury attributed to ship strikes averaged one per year. From 2004 to 2006, that number increased to 2.6. Deaths from collisions has become an extinction threat. The United States' National Marine Fisheries Service (NMFS) and National Oceanic and Atmospheric Administration (NOAA) introduced vessel speed restrictions to reduce ship collisions with North Atlantic right whales in 2008, which expired in 2013. However, in 2017 an unprecedented mortality event occurred, resulting in the deaths of 17 North Atlantic right whales caused primarily from ship-strikes and entanglement in fishing gear.
Atmospheric pollution
Exhaust gases from ships are a significant source of air pollution, both for conventional pollutants and greenhouse gases.
Conventional pollutants
Air pollution from ships is generated by diesel engines that burn high sulfur content fuel oil, also known as bunker oil, producing sulfur dioxide, nitrogen oxide and particulate, in addition to carbon monoxide, carbon dioxide, and hydrocarbons which again leads to the formation of aerosols and secondary chemicals reactions including formations of HCHO, Ozone etc. in the atmosphere. Diesel exhaust has been classified by the U.S. Environmental Protection Agency (EPA) as a likely human carcinogen. The agency recognizes that these emissions from marine diesel engines contribute to ozone and carbon monoxide nonattainment (i.e., failure to meet air quality standards), as well as adverse health effects associated with ambient concentrations of particulate matter and visibility, haze, acid deposition, and eutrophication and nitrification of water. EPA estimates that large marine diesel engines accounted for about 1.6 percent of mobile source nitrogen oxide emissions and 2.8 percent of mobile source particulate emissions in the United States in 2000. Contributions of marine diesel engines can be higher on a port-specific basis. Ultra-low sulfur diesel (ULSD) is a standard for defining diesel fuel with substantially lowered sulfur contents. As of 2006, almost all of the petroleum-based diesel fuel available in Europe and North America is of a ULSD type. However, bunker oil is still available, and large marine engines are able to switch between the two types simply by opening and closing the respective valves from two different on-board fuel tanks.
In 2016, the IMO adopted new sulfur-emissions regulations for implementation by larger ships beginning in January 2020.Of total global air emissions, marine shipping accounts for 18 to 30 percent of the nitrogen oxides and 9% of the sulfur oxides. Sulfur in the air creates acid rain which damages crops and buildings. When inhaled, sulfur is known to cause respiratory problems and even increases the risk of a heart attack. According to Irene Blooming, a spokeswoman for the European environmental coalition Seas at Risk, the fuel used in oil tankers and container ships is high in sulfur and cheaper to buy compared to the fuel used for domestic land use. "A ship lets out around 50 times more sulfur than a lorry per tonne of cargo carried."Cities in the United States like Long Beach, Los Angeles, Houston, Galveston, and Pittsburgh see some of the heaviest shipping traffic, which has left local officials desperately trying to clean up the air. Increasing trade between the United States and China is helping to increase the number of vessels navigating the Pacific and is exacerbating multiple environmental problems. To maintain the level of growth China is experiencing, large amounts of grain are being shipped to China. The numbers of shipments are expected to continue increasing.In contrast to sulfur emissions (which depend on the fuel used), nitrous oxide emissions are primarily a function of combustion temperature. As air contains over 70% nitrogen by volume, some of it will react with oxygen during combustion. Given that those reactions are endothermic, a higher amount of nitrous oxides will be produced at higher combustion temperatures. However, other pollutants, particularly unburned or partially burnt hydrocarbons (also known as hyperfine particulates or soot), will be more common at lower combustion temperatures, so there is a trade-off between nitrogen oxides and soot.
Other than replacing ambient air with pure oxygen or some other oxidizing agent, the only ways to significantly reduce the nitrogen oxide emissions are via passing flue gasses through a catalytic converter and/or diesel exhaust fluid treatment, whereby an aqueous solution of urea reacts with the nitrous oxides in the flue gas to produce nitrogen, carbon dioxide and water. However, both those options add cost and weight. Furthermore, the urea in diesel exhaust fluid is usually derived from fossil fuels, and therefore it is not carbon neutral.
A third option entails the use of wet scrubbers that essentially spray seawater through the exhaust column as it is pumped through a chamber. Depending on the detailed engineering-design attributes of the wet scrubber, these devices can wash out the sulfur oxides, soot and nitrogen oxides from the engine exhaust, thus leaving a sludge that contains soot and various acidic compounds (or neutralized compounds, if alkaline substances are mixed in with the scrubbing liquid beforehand). This material can then be either treated via an on-board device (closed-loop system), or it can simply be dumped overboard (open-loop system). The discharged material can be harmful to marine life, especially in nearshore settings.
In a recent study, the future of ship emissions has been investigated and reported that the growth of carbon dioxide emissions do not change with most common alternatives such as Ultra-low sulfur diesel (ULSD) or liquified natural gas (LNG) as well as growing volume of methane emission due to methane slip through the LNG supply-chain. Methane is a much more powerful greenhouse gas than carbon dioxide per unit volume, and is only slowly broken down in the environment by various chemical, photochemical and
biological processes.
In inland-waters-based applications where sulfur cannot (fully) be removed from the fuel before combustion (desulfurization), flue gas scrubbing is commonly employed. However, this would add weight and cost on ships and produce a further waste stream (usually calcium sulfate if flue gases are scrubbed by being passed through calcium hydroxide solution) which would have to be disposed of, adding yet further cost. In addition, calcium hydroxide commonly being produced by calcination of calcium carbonate releases yet more carbon dioxide into the atmosphere. While this stream is comparatively small in relation to carbon-dioxide emissions caused by combustion of fossil fuels, it needs to be taken into account as well, as part of a complete life-cycle assessment.
Localized air pollution
One source of environmental stresses on maritime vessels recently has come from states and localities, as they assess the contribution of commercial marine vessels to regional air quality problems when ships are docked at port. For instance, large marine diesel engines are believed to contribute 7 percent of mobile source nitrogen oxide emissions in Baton Rouge and New Orleans, Louisiana. Ships can also have a significant impact in areas without large commercial ports: they contribute about 37 percent of total area nitrogen oxide emissions in the Santa Barbara, California area, and that percentage is expected to increase to 61 percent by 2015. Again, there is little cruise-industry specific data on this issue. They comprise only a small fraction of the world shipping fleet, but cruise ship emissions may exert significant impacts on a local scale in specific coastal areas that are visited repeatedly. Shipboard incinerators also burn large volumes of garbage, plastics, and other waste, producing ash that must be disposed of. Incinerators may release toxic emissions as well.
In 2005, MARPOL Annex VI came into force to combat this problem. As such cruise ships now employ CCTV monitoring on the smokestacks as well as recorded measuring via opacity meter while some are also using clean burning gas turbines for electrical loads and propulsion in sensitive areas.
Greenhouse gas emissions
Maritime transport accounts for 3.5% to 4% of all greenhouse gas emissions, primarily carbon dioxide. According to the World Bank, in 2022, the shipping industry's 3% of global greenhouse gas emissions make it "the sixth largest greenhouse gas emitter worldwide, ranking between Japan and Germany."Although the industry was not a focus of attention of the Paris Climate Accord signed in 2016, the United Nations and the IMO have discussed CO2 emissions goals and limits. The First Intersessional Meeting of the IMO Working Group on Greenhouse Gas Emissions took place in Oslo, Norway on 23–27 June 2008. It was tasked with developing the technical basis for the reduction mechanisms that may form part of a future IMO regime to control greenhouse gas emissions from international shipping, and a draft of the actual reduction mechanisms themselves, for further consideration by the IMO's Marine Environment Protection Committee (MEPC). In 2018, the industry discussed in London placing limits to cut levels from a benchmark of 2008 carbon dioxide emissions by 50% by the year 2050. Some methods of reducing emissions of the industry include lowering speeds of shipping (which can be potentially problematic for perishable goods) as well as changes to fuel standards. In 2019, international shipping organizations, including the International Chamber of Shipping, proposed creating a $5 billion fund to support the research and technology necessary to cut GHG emissions.
Decarbonization of shipping
Oil spills
Most commonly associated with ship pollution are oil spills. While less frequent than the pollution that occurs from daily operations, oil spills have devastating effects. While being toxic to marine life, polycyclic aromatic hydrocarbons (PAHs), the components in crude oil, are very difficult to clean up, and last for years in the sediment and marine environment. Marine species constantly exposed to PAHs can exhibit developmental problems, susceptibility to disease, and abnormal reproductive cycles. One of the more widely known spills was the Exxon Valdez incident in Alaska. The ship ran aground and dumped a massive amount of oil into the ocean in March 1989. Despite efforts of scientists, managers and volunteers, over 400,000 seabirds, about 1,000 sea otters, and immense numbers of fish were killed.
Wastewater
Blackwater is sewage, wastewater from toilets and medical facilities, which can contain harmful bacteria, pathogens, viruses, intestinal parasites, and harmful nutrients. Discharges of untreated or inadequately treated sewage can cause bacterial and viral contamination of fisheries and shellfish beds, producing risks to public health. Nutrients in sewage, such as nitrogen and phosphorus, promote excessive algal blooms, which consumes oxygen in the water and can lead to fish kills and destruction of other aquatic life.
Greywater is wastewater from the sinks, showers, galleys, laundry, and cleaning activities aboard a ship. It can contain a variety of pollutant substances, including fecal coliforms, detergents, oil and grease, metals, organic compounds, petroleum hydrocarbons, nutrients, food waste, medical and dental waste. Sampling done by EPA and the state of Alaska found that untreated greywater from cruise ships can contain pollutants at variable strengths and that it can contain levels of fecal coliform bacteria several times greater than is typically found in untreated domestic wastewater. Greywater has potential to cause adverse environmental effects because of concentrations of nutrients and other oxygen-demanding materials, in particular. Greywater is typically the largest source of liquid waste generated by cruise ships (90 to 95 percent of the total). Estimates of greywater range from 110 to 320 liters per day per person, or 330,000 to 960,000 liters per day for a 3,000-person cruise ship.: 15 A large cruise ship (3,000 passengers and crew) generates an estimated 55,000 to 110,000 liters per day of blackwater waste.: 13 The cruise line industry dumps 970,000 litres (255,000 US gal) of greywater and 110,000 litres (30,000 US gal) of blackwater into the sea every day.MARPOL annex IV was brought into force September 2003 strictly limiting untreated waste discharge. Modern cruise ships are most commonly installed with a membrane bioreactor type treatment plant for all blackwater and greywater, such as G&O, Zenon or Rochem bioreactors which produce near drinkable quality effluent to be re-used in the machinery spaces as technical water.
Solid waste
Solid waste generated on a ship includes glass, paper, cardboard, aluminium and steel cans, and plastics. It can be either non-hazardous or hazardous in nature. Solid waste that enters the ocean may become marine debris, and can then pose a threat to marine organisms, humans, coastal communities, and industries that utilize marine waters. Cruise ships typically manage solid waste by a combination of source reduction, waste minimization, and recycling. However, as much as 75 percent of solid waste is incinerated on board, and the ash typically is discharged at sea, although some is landed ashore for disposal or recycling. Marine mammals, fish, sea turtles, and birds can be injured or killed from entanglement with plastics and other solid waste that may be released or disposed off of cruise ships. On average, each cruise ship passenger generates at least two pounds of non-hazardous solid waste per day. With large cruise ships carrying several thousand passengers, the amount of waste generated in a day can be massive. For a large cruise ship, about 8 tons of solid waste are generated during a one-week cruise. It has been estimated that 24% of the solid waste generated by vessels worldwide (by weight) comes from cruise ships.: 38–39 : Table 2–3 Most cruise ship garbage is treated on board (incinerated, pulped, or ground up) for discharge overboard. When garbage must be off-loaded (for example, because glass and aluminium cannot be incinerated), cruise ships can put a strain on port reception facilities, which are rarely adequate to the task of serving a large passenger vessel.: 126
Bilge water
On a ship, oil often leaks from engine and machinery spaces or from engine maintenance activities and mixes with water in the bilge, the lowest part of the hull of the ship. Though bilge water is filtered and cleaned before being discharged, oil in even minute concentrations can kill fish or have various sub-lethal chronic effects. Bilge water also may contain solid wastes and pollutants containing high levels of oxygen-demanding material, oil and other chemicals. A typically large cruise ship will generate an average of 8 tonnes of oily bilge water for each 24 hours of operation. To maintain ship stability and eliminate potentially hazardous conditions from oil vapors in these areas, the bilge spaces need to be flushed and periodically pumped dry. However, before a bilge can be cleared out and the water discharged, the oil that has been accumulated needs to be extracted from the bilge water, after which the extracted oil can be reused, incinerated, and/or offloaded in port. If a separator, which is normally used to extract the oil, is faulty or is deliberately bypassed, untreated oily bilge water could be discharged directly into the ocean, where it can damage marine life.Some shipping companies, including large cruise shipping lines, have sometimes violated regulations by illegally bypassing the onboard oily water separator and discharging untreated oily wastewater. In the US these violations by means of a so-called "magic pipe" have been prosecuted and resulted in large fines, but in other countries enforcement has been mixed.
International regulation
Some of the major international efforts in the form of treaties are the Marine Pollution Treaty, Honolulu, which deals with regulating marine pollution from ships, and the UN Convention on Law of the Sea, which deals with marine species and pollution. Maritime governance from the 1950s up to the 1980s has been characterized by intergovernmental decision-making centralized around the IMO. However, this picture has been changing since the 1980s when regional initiatives in the EU and its member states began to play a larger role, partly due to an increasing dissatisfaction with the lacking regulation and enforcement efforts of the IMO. This has led to a new synergy developing between the EU and the IMO and other regional actors, broadly characterized as a polycentric mode of governance. The polycentric synergy of the EU and IMO has largely been driven by the active and leading role taken by the EU in both implementing and influencing IMO conventions. Four regional initiatives in this context are notable: “the use of special areas in IMO Conventions, the adoption of the Paris Memorandum of Understanding (MoU) on Port State Control, the development of the European Union shipping policy domain and the emergence of market-based initiatives by ports and cargo-owners”.While plenty of local and international regulations have been introduced throughout maritime history, much of the current regulations are considered inadequate. "In general, the treaties tend to emphasize the technical features of safety and pollution control measures without going to the root causes of sub-standard shipping, the absence of incentives for compliance and the lack of enforceability of measures." Where polycentric governance relies on positive relationships between major actors and conventions, one of the largest barriers to an effective environmental regulation of shipping arises from negative relationships between major actors and conventions, where ambiguous or overlapping jurisdictions result in a range of different issues such as a lack of effective enforcement and monitoring, inconsistent and unclear standards, and inadequate supervision resulting in blind spots in the high seas.Effective regulation of international shipping thus requires more international coordination. If states regulate emissions unilaterally, this leads to an overall increase in net emissions, whereas coordinated and uniform regulation between states reduces net emissions. However, varying patterns of governance are still seen across different ports with the same uniform regulation underscoring the need for policy to also take local and sectoral factors into account, perhaps through tailor-made adaptation measures. The effectiveness of uniform regulation also depends on the use of MRV&E systems, which denote “technologies, policies and administrative processes that monitor, report, verify and enforce compliance with the regulations''. The current enforcement of regulations is lacking, and efforts need to be made to both “strengthen supervision and law enforcement and establish a global monitoring system”. The most common problems encountered with international shipping arise from paperwork errors and customs brokers not having the proper information about the items. Cruise ships, for example, are exempt from regulation under the US discharge permit system (NPDES, under the Clean Water Act) that requires compliance with technology-based standards. In the Caribbean, many ports lack proper waste disposal facilities, and many ships dump their waste at sea Due to complexities of shipping trade and the difficulties involved in regulating this business, a comprehensive and generally acceptable regulatory framework on corporate responsibility for reducing GHG emissions is unlikely to be achieved soon. As in the case of negotiations around taxation of shipping fuels, international agreement around uniform regulation has not been reached, resulting instead in a deadlock. Overlaps of decision-making authority between central institutions can pose similar barriers, if central norm conflicts between them are large enough – as in the case of competing principles guiding the United Nations Framework Convention on Climate Change (UNFCCC) and the IMO. The UNFCCC is guided by the principle of Common but Differentiated Responsibilities (CBDR) which holds that since developed countries proportionately have contributed the most in terms of GHG emissions, they also take the largest responsibility for addressing the reduction of these emissions. The IMO in contrast is guided by principles of “non-discrimination and equal treatment and No More Favourable Treatment (NMFT) to all ships irrespective of their flag”. This has led to a conflict between central interests, since developed states support the NMFT principle, while developing states support the CBDR principle. The effect of this conflict is that we are left with no clear principle around which to regulate resulting in impeding the “legislation efficiency and consensus”.A 2016 journal article recommends that under current circumstances, it is necessary for states, the shipping industry and global organizations to explore and discuss market-based mechanisms (MBMs) for vessel-sourced GHG emissions reduction. MBMs are part of a broader category of mechanisms working through economic incentives “that provide motivation for the adoption of less environmentally damaging practices”, the second most common being “infrastructure investments and informative policies”. The most prominent and promising use of economic incentives are market-based measures (MBMs). The two main types of MBMs used are emission trading schemes and fuel levies. Both work through putting a price on GHG emissions providing economic incentives for taxed actors to improve their energy efficiency. However, these improvements are also accompanied by a short-term decline in industry profit. Some argue that the current use of MBMs in the EU Emission Trading Scheme could serve as a window of opportunity to reduce GHG emissions in the shipping sector without placing an unnecessarily high burden on the shipping sector. The challenges standing in the way of this – the “allocation of emissions, carbon leakage, permit allocation, treatment of the great variety in ship type, size and usage, and transaction cost” – are however hard to overcome without global market-based economies. Others incentive-based schemes for achieving decarbonization include pricing schemes or the incentivization of “front-runner ships that implement decarbonization technologies beyond regulations”. However, evaluation of current the incentive schemes reveals that the schemes are onerous and only taken up by shipping enterprises or ports to a limited degree. Further, these incentive schemes are not specifically focused on a reduction in GHG emissions and thus do not support decarbonization.Further, these approaches are not without their critics. Lars Stemmler is critical towards the attitude that both environmental and social consequences of climate change can be mitigated through “ever more efficiencies in shipping”. Jason Monios similarly argues that the shipping sector generally operate by a business-as-usual logic based on assumptions of uninterrupted growth where actors must only address “incremental challenges that can be adapted to in a piecemeal fashion”. However, the consequences of climate change might instead take place on a disruptive and uncontrollable level, “bringing starvation, destruction, migration disease and war” necessitating much more radical action. While Monios argues that the shipping industry has started to use the rhetoric of a logic of sustainability, the actions of shipping actors are still largely determined by the dominant business-as-usual logic, which block attempts at regulation from the IMO and leads to a loss of trust in and legitimacy of the system. Lastly, When MBMs become the primary means of addressing climate change at sea, Monios argues, this business-as-usual logic is strengthened, since they crowd out non-market norms and render invisible governance alternatives such as direct regulation and supply-side approaches.
Issues by region
Asia
European Union
Cruise ship pollution in Europe
EU Reducing Greenhouse Gas emissions from the shipping sector
EU Sustainable Shipping Forum (ESSF)
EC-IMO Energy Efficiency Project. The 4-year project aims to establish Maritime Technology Cooperation Centres in 5 regions: Africa, Asia, the Caribbean, Latin America and the Pacific. Through technical assistance and capacity-building, the centres will promote the uptake of low carbon technologies and operations in maritime transport in the less developed countries in the respective region. This will also support the implementation of the internationally agreed energy efficiency rules and standards (EEDI and SEEMP).
MRV Monitoring, reporting and verification of CO2 emissions from large ships using EU ports
United Kingdom
Merchant Shipping Act 1995
Merchant Shipping (Pollution) Act 2006
United States
It is expected that, (from 2004) "...shipping traffic to and from the United States is projected to double by 2020." However, many shipping companies and port operators in North America (Canada and the United States) have adopted the Green Marine Environmental Program to limit operational impacts on the environment.
Act to Prevent Pollution from Ships
American Bureau of Shipping
Cruise ship pollution in the United States
National Oil and Hazardous Substances Contingency Plan
Oil Pollution Act of 1990
Regulation of ship pollution in the United States
See also
References
Further reading
Ewan McGaughey, 'Liability for climate damage and shipping' in S Baughan, B Soyer and A Tettenborn (eds), Disruptive Technologies, Climate Change and Shipping (2022) ch 13 and on SSRN
Copeland, Claudia (6 February 2008). Cruise Ship Pollution: Background, Laws and Regulations, and Key Issues (PDF) (Report). Washington, D.C.: US Congressional Research Service. RL32450. Archived from the original (PDF) on 17 December 2008.
Becker, Austin; Ng, Adolf K.Y.; McEvoy, Darryn; Mullett, Jane (8 February 2018). "Implications of climate change for shipping: Ports and supply chains". WIREs Climate Change. Wiley. 9 (2). doi:10.1002/wcc.508. ISSN 1757-7780. S2CID 135252051.
"The First Wave A blueprint for commercial-scale zero-emission shipping pilots" (PDF). Energy Transitions Commission. 11 November 2020. Retrieved 11 June 2021.
"Charting a Course for Decarbonizing Maritime Transport". World Bank Live. 23 April 2021. Retrieved 18 August 2022.
External links
Maritime International Secretariat Services - Shipping Industry Guidance on Environmental Compliance
GloBallast partnership (IMO)
International Convention for the Control and Management of Ships' Ballast Water and Sediments, 2004 - IMO
Cruise Ship Pollution Overview - Oceana
Ecological facts on ballast water
CO2 emissions calculator for transporting cargo by sea
The Global MTCC Network |
agricultural law | Agricultural law, sometimes referred to as Ag Law, deals with such legal issues as agricultural infrastructure, seed, water, fertilizer, pesticide use, agricultural finance, agricultural labour, agricultural marketing, agricultural insurance, farming rights, land tenure and tenancy system and law on Agricultural processing and rural industry. With implementation of modern technologies, issues including credit, intellectual property, trade and commerce related to agricultural products are dealt within the sphere of this law.
Simply put, agricultural law is the study of the special laws and regulations that apply to the production and sale of agricultural products. "Agricultural exceptionalism," i.e., the use of legal exceptions to protect the agricultural industry, is pervasive, worldwide. American law schools and legal scholars first recognized agricultural law as a discipline in the 1940s when law schools at Yale, Harvard, Texas, and Iowa explored and initiated agricultural law courses. These early efforts were short-lived, however, and agricultural law as a distinct discipline did not resurface for three decades. In 1979, a scholarly journal, The Agricultural Law Journal was initiated. In 1980, the American Agricultural Law Association was formed and an advanced law degree program, the LL.M. Program in Agricultural Law was founded at the University of Arkansas School of Law. In 1981, a fifteen volume Agricultural Law Treatise was published and in 1985, the first law school casebook, Agricultural Law: Cases and Materials was published by West Publishing.In recent years, agricultural law studies have expanded to incorporate a wider consideration of the impact of agricultural production, including issues of environmental law, sustainability, animal welfare, and food law and policy. Reflecting this expanded perspective, in 2009, the LL.M. Program in Agricultural Law at Arkansas changed its name to the LL.M Program in Agricultural and Food Law. In 2010, the second law school textbook was published with the title, Food, Farming & Sustainability: Readings in Agricultural Law. And, in 2012, the American Association of Law Schools changed the name of its Agricultural Law section to Agricultural and Food Law. The emerging discipline of food law & policy traces its roots to the discipline of agricultural law as well as tradition food and drug law.
See also
Adjusted Gross Revenue Insurance
Agricultural Act of 1949
Agricultural Act of 1954
Agricultural district
National Agricultural Law Center
American Agricultural Law Association
References
External links
Iowa State University's Center for Agricultural Law and Taxation
LL.M. Program in Agricultural & Food Law, University of Arkansas School of Law
Food Farming & Sustainability: Legal Resources Website
Drake Agricultural Law Center
Agricultural Law Information Partnership
LLM in Food and Agriculture Law, Vermont Law and Graduate School |
pesticide drift | Pesticide drift refers to the unintentional diffusion of pesticides and the potential negative effects of pesticide application, including off-target contamination due to spray drift as well as runoff from plants or soil. This can lead to damage in human health, environmental contamination, and property damage. Some pesticides are more likely to drift than others which can mean it is more harmful in some cases. For example, fumigants which are gaseous pesticides move easily through air and will drift if not contained. Some pesticides look like a cloud when they drift while others can be invisible and odorless.
Types
With placement (localised) spraying of broad spectrum pesticides, wind drift must be minimised, and considerable efforts have been made to quantify and control spray drift from hydraulic nozzles. Conversely, wind drift is also an efficient mechanism for moving droplets of an appropriate size range to their targets over a wide area with ultra-low volume (ULV) spraying.Himel (1974) made a distinction between exo-drift (the transfer of spray out of the target area) and endo-drift, where the active ingredient (AI) in droplets falls into the target area, but does not reach the biological target. Endo-drift is volumetrically more significant and may therefore cause greater ecological contamination (e.g. where chemical pesticides pollute ground water).Bystander exposure describes the event when individuals unintentionally come in contact with airborne pesticides. Bystanders include workers working in an area separate to the pesticide application area, individuals living in the surrounding areas of an application area, or individuals passing by fields as they are being treated with a pesticide.
Herbicide volatilisation
Herbicide volatilisation refers to evaporation or sublimation of a volatile herbicide. The effect of a gaseous chemical is lost at its intended place of application and may move downwind and affect other plants not intended to be affected causing crop damage. Herbicides vary in their susceptibility to volatilisation. Prompt incorporation of the herbicide into the soil may reduce or prevent volatilisation. Wind, temperature, and humidity also affect the rate of volatilisation, with humidity reducing it. 2,4-D and dicamba are commonly used chemicals that are known to be subject to volatilisation, but there are many others. The seriousness of crop injury caused by dicamba drift is increasingly being recognized. For example, the American Soybean Association and various land-grant universities are cooperating in the race to find ways to preserve the usability of dicamba while ending drift injury. Application of herbicides later in the season to protect herbicide-resistant genetically modified plants increases the risk of volatilisation as the temperature is higher and incorporation into the soil impractical.
Drift reduction methods
To mitigate pesticide drift one will need to inspect their equipment. Before application, check to see if applicators, hoses, braces, springs, clamps, or any other equipment is bent, damaged, or clogged. If any of the equipment is damaged there is a higher chance for airflow to move droplets from the intended application site. When using ground boom sprayers be sure to set nozzle heights that are not too high above the intended crop. Nozzles that are too high above the target will lead to more airflow under the nozzle and carry droplets of pesticides to other unintended locations. Be aware of the weather when it is time to apply pesticides, if the outside temperature is hot, if there is lots of moisture in the air, or if it is windy, there is a higher chance for pesticide drift.
Public concern
Although there has been much public concern and research into spray drift, point source pollution (e.g. pesticides entering bodies of water following spillage of concentrate or rinsate) can also cause great environmental harm. Public concern for pesticide drift is not met with adequate regulatory response. Environmental justice advocates in California, for instance, consider moving up the scale of the discourse on pesticide drift by categorizing it as air pollution in order to receive attention from state environmental protection.Farm workers and communities surrounding large farms are at a high risk of coming in contact with pesticides. The San Joaquin valley in California has seen numerous cases of illnesses resulting from exposure to pesticides through pesticide drift. Organizations such as the United Farm Workers Union have fought to implement legislation that would reduce and hold farmers accountable for pesticide drift. The California Department of Pesticide Regulation estimates that between 37 and 68% of pesticide illness among United States agricultural workers come as a result of pesticide drift.Insecticides sprayed on crop fields can also have detrimental effects on non-human lifeforms that are important to the surrounding ecosystems like bees and other insects.From 1998 to 2006, Environmental Health Perspectives found nearly 3,000 cases of pesticide drift; nearly half were workers on the fields treated with pesticides and 14% of cases were children under the age of 15.
Health concerns
When pesticides drift, they can be inhaled or land on the skin and eyes. Symptoms include eye and nose irritation, runny nose, coughing, or rash. However, different pesticides can affect different body systems, inflicting different symptoms. Pesticide drift can result in more serious harm to one's health depending on how much and what type of pesticide is entering the body. Some pesticides cause little to no harm from low toxicity. Others can be very toxic and cause serious effects from little exposure. Yet, these pesticides are kept in tight control. Some pesticides, at significantly high exposures, can cause long-term health effects, including neurodevelopmental disorders in children, infertility and reproductive issues, cancer, pulmonary disease, and much more.
Regulations
In 2001, the United States Environmental Protection Agency published a guidance to "manufacturers, formulators, and registrants of pesticide products" (EPA 2001) that stated the EPA's stance against pesticide drift as well as suggested product labelling practices.
To try and reduce pesticide drift, the EPA is a part of several initiatives. The EPA has routine pesticide risk assessments to check potential drift impact on farmworkers living near or on fields where crops are grown, farmworkers, water sources, and the environment. The USDA and EPA are working together to examine new studies and how to improve scientific models to estimate the exposure, risk, and drift of pesticides. The EPA is also working with pesticide manufacturers to ensure labels are easy to read, contain the correct application process and DRT for that specific pesticide.
Current research
Many things have previously been unknown regarding pesticide drift, including the direct health impacts on humans, effective ways to prevent pesticide drift (other than placing the responsibility on the farmer), and if the public should be concerned about their general health being impacted by pesticide drift. Recent research has come out that has shed light on a lot of different subject surrounding pesticide drift that have made it much easier to understand, and therefore easier to control.One recent study has compared cytotoxicity and genotoxicity of rural agricultural residents to that of a control group and have found that individuals in agricultural areas are at risk for increased genotoxicity because of pesticide drift from farmers in the area.Despite this alarming diagnosis, more research has also gone into finding effective ways to reduce the effects of pesticide drift without relying on compliance of the farmers. Farmers can struggle to walk the line between reducing pesticide drift and still being productive farmers, which has led to more research on alternative solutions for pesticide drift. Because of this, more effort has gone into developing specific pesticides that will not harm other (non-targeted) species, will decrease the distance pesticides can travel, and will decrease the amount of chemical taken in the air before landing on the target field.In addition to monitoring what farmers are spraying, more research has gone into what weather conditions are the best to spray. Researchers understand that farmers cannot hold off spraying crops for extended periods of time, so research has gone into determining which is the best combination of the worst weather conditions to help optimize spray time while also maintaining the health of nearby aquatic ecosystems. One-way researchers have begun to do this is using computer programs to simulate the efficiency of the spray and reach of the spray drift. The program is being developed in hopes that it can one day be available to farmers to help maximize the positive effects of spraying for their crops, while minimizing negative effects on other ecosystems nearby.
See also
Aerial application
Agricultural runoff
Environmental impact of agriculture
Environmental protection
Nonpoint source pollution
References
Sources
"For Your Information: Spray Drift of Pesticides". U.S. Environmental Protection Agency. 1999. 735F99024.
Notes
Himel, C.M. (1974). "Analytical methodology in ULV". Pesticide application by ULV methods. British Crop Protection Council Monograph No. 11. pp. 112–119. OCLC 16299124.
Matthews G.A. (2006) Pesticides: Health, Safety and the Environment Blackwell, Oxford
External links
EarthJustice - health impacts of pesticide drift in rural farming community
Pesticide Action Network North America (PANNA)- "Advancing alternatives to pesticides worldwide"
International Pesticide Application Research Centre (IPARC) |
environmental issues in the united states | Environmental issues in the United States include climate change, energy, species conservation, invasive species, deforestation, mining, nuclear accidents, pesticides, pollution, waste and over-population. Despite taking hundreds of measures, the rate of environmental issues is increasing rapidly instead of reducing. The United States is among the most significant emitters of greenhouse gasses in the world. In terms of both total and per capita emissions, it is among the largest contributors. The climate policy of the United States has big influence on the world.
Movements and ideas
20th century
Both conservationism and environmentalism appeared in political debate in forests about the Progressive Era in the early 20th century. There were three main positions. The laissez-faire position held that owners of private property—including lumber and mining companies, should be allowed to do anything they wished for their property.The Conservationists, led by President Theodore Roosevelt and his close ally Gifford Pinchot, said that the laissez-faire approach was too wasteful and inefficient. In any case, they noted, most of the natural resources in the western states were already owned by the federal government. The best course of action, they argued, was a long-term plan devised by national experts to maximize the long-term economic benefits of natural resources.
Environmentalism was the third position, led by John Muir (1838–1914). Muir's passion for nature made him the most influential American environmentalist. Muir preached that nature was sacred and humans are intruders who should look but not develop. He founded the Sierra Club and remains an icon of the environmentalist movement. He was primarily responsible for defining the environmentalist position, in the debate between Conservation and environmentalism.
Environmentalism preached that nature was almost sacred, and that man was an intruder. It allowed for limited tourism (such as hiking), but opposed automobiles in national parks. It strenuously opposed timber cutting on most public lands, and vehemently denounced the dams that Roosevelt supported for water supplies, electricity and flood control. Especially controversial was the Hetch Hetchy dam in Yosemite National Park, which Roosevelt approved, and which supplies the water supply of San Francisco.
Climate change
Energy
Since about 26% of all types of energy used in the United States are derived from fossil fuel consumption it is closely linked to greenhouse gas emissions. The energy policy of the United States is determined by federal, state and local public entities, which address issues of energy production, distribution, and consumption, such as building codes and gas mileage advancements. The production and transport of fossil fuels are also tied to significant environmental issues.
Species conservation
Many plant and animal species became extinct in North America soon after first human arrival, including the North American megafauna; others have become nearly extinct since European settlement, among them the American bison and California condor.The last of the passenger pigeons died in 1914 after being the most common bird in North America. They were killed as both a source of food and because they were a threat to farming. Saving the bald eagle, the national bird of the U.S., from extinction was a notable conservation success.
As of 13 December 2016, the International Union for the Conservation of Nature's Red List shows the United States has 1,514 species on its threatened list (critically endangered, endangered and vulnerable categories).
Invasive species
Deforestation
Mining
Abandoned fossil fuel wells
Nuclear
The most notable accident involving nuclear power in the United States was Three Mile Island accident in 1979. Davis-Besse Nuclear Power Station has been the source of two of the top five most dangerous nuclear incidents in the United States since 1979.Nuclear safety in the United States is governed by federal regulations and continues to be studied by the Nuclear Regulatory Commission (NRC). The safety of nuclear plants and materials controlled by the U.S. government for research and weapons production, as well those powering naval vessels, is not governed by the NRC.
The anti-nuclear movement in the United States consists of more than eighty anti-nuclear groups which have acted to oppose nuclear power and/or nuclear weapons in the USA. The movement has delayed construction or halted commitments to build some new nuclear plants, and has pressured the Nuclear Regulatory Commission to enforce and strengthen the safety regulations for nuclear power plants. Anti-nuclear campaigns that captured national public attention in the 1970s and 1980s involved the Calvert Cliffs Nuclear Power Plant, Seabrook Station Nuclear Power Plant, Diablo Canyon Power Plant, Shoreham Nuclear Power Plant, and Three Mile Island.
Pesticides
Pesticide use in the United States is predominately by the agricultural sector, which in 2012 comprised 89% of conventional pesticide usage in the United States.
The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) was first passed in 1947, giving the United States Department of Agriculture responsibility for regulating pesticides. In 1972, FIFRA underwent a major revision and transferred responsibility of pesticide regulation to the Environmental Protection Agency and shifted emphasis to protection of the environment and public health.
Pollution
Air pollution
Water pollution
Marine pollution
Plastic pollution
The United States is the biggest creator of plastic waste and the third largest source of ocean plastic pollution, e.g. plastic waste that gets into the oceans. Much of the plastic waste generated in the United States is shipped to other countries.
Solid waste
At 760 kg per person the United States generates the greatest amount of municipal waste. In 2018 municipal waste totaled 292.4 million short tons (265.3×10^6 t), or 4.9 pounds (2.2 kg) per person per day.
Policy
Electronic waste
Hazardous waste
Population
The total U.S. population crossed the 100 million mark around 1915, the 200 million mark in 1967, and the 300 million mark in 2006 (estimated on Tuesday, October 17). The U.S. population more than tripled during the 20th century — a growth rate of about 1.3 percent a year — from about 76 million in 1900 to 281 million in 2000. This is unlike most European countries, especially Germany, Russia, Italy and Greece, whose populations are slowly declining, and whose fertility rates are below replacement.
Population growth is fastest among minorities, and according to the United States Census Bureau's estimation for 2005, 45% of American children under the age of 5 are minorities. In 2007, the nation's minority population reached 102.5 million. A year before, the minority population totaled 100.7 million. Hispanic and Latino Americans accounted for almost half (1.4 million) of the national population growth of 2.9 million between July 1, 2005, and July 1, 2006.Based on a population clock maintained by the U.S. Census Bureau, the current U.S. population, as of July 2021 is about 332 million. A 2004 U.S. Census Bureau report predicted an increase of one third by the year 2050. A subsequent 2008 report projects a population of 439 million, which is a 44% increase from 2008.
Conservation and environmental movement
Today, the organized environmental movement is represented by a wide range of organizations sometimes called non-governmental organizations or NGOs. These organizations exist on local national and international scales. Environmental NGOs vary widely in political views and in the amount they seek to influence the government. The environmental movement today consists of both large national groups and also many smaller local groups with local concerns. Some resemble the old U.S. conservation movement - whose modern expression is the Nature Conservancy, Audubon Society and National Geographic Society - American organizations with a worldwide influence.
See also
Notes
References
Works cited
Further reading
Bates, J. Leonard. "Fulfilling American Democracy: The Conservation Movement, 1907 to 1921", The Mississippi Valley Historical Review, (1957), 44#1 pp. 29–57. in JSTOR
Brinkley, Douglas G. The Wilderness Warrior: Theodore Roosevelt and the Crusade for America, (2009) excerpt and text search
Cawley, R. McGreggor. Federal Land, Western Anger: The Sagebrush Rebellion and Environmental Politics (1993), on conservatives
Flippen, J. Brooks. Nixon and the Environment (2000).
Hays, Samuel P. Beauty, Health, and Permanence: Environmental Politics in the United States, 1955–1985 (1987), the standard scholarly history
Hays, Samuel P. A History of Environmental Politics since 1945 (2000), shorter standard history
King, Judson. The Conservation Fight, From Theodore Roosevelt to the Tennessee Valley Authority (2009)
Nash, Roderick. Wilderness and the American Mind, (3rd ed. 1982), the standard intellectual history
Rothman, Hal K. The Greening of a Nation? Environmentalism in the United States since 1945 (1998)
Scheffer, Victor B. The Shaping of Environmentalism in America (1991).
Sellers, Christopher. Crabgrass Crucible: Suburban Nature and the Rise of Environmentalism in Twentieth-Century America (2012)
Strong, Douglas H. Dreamers & Defenders: American Conservationists. (1988) online edition, good biographical studies of the major leaders
Turner, James Morton, "The Specter of Environmentalism": Wilderness, Environmental Politics, and the Evolution of the New Right. The Journal of American History 96.1 (2009): 123-47 online at History Cooperative
External links
Calculate the ecological footprint of your household: Low Impact Living |
index of climate change articles | This is a list of climate change topics.
0-9
100% renewable energy -
100,000-year problem -
1500-Year climate cycle -
4 Degrees and Beyond International Climate Conference
A
Abrupt climate change -
The Age of Stupid -
Albedo -
An Inconvenient Truth -
An Inconvenient Book -
Antarctica cooling controversy -
Antarctic Bottom Water -
Antarctic Cold Reversal -
Antarctic oscillation -
Anthropocene extinction -
Arctic amplification -
Arctic Climate Impact Assessment -
Arctic geoengineering -
Arctic shrinkage -
Arctic oscillation -
Atlantic oscillation -
Arctic Climate Impact Assessment -
Arctic methane release -
Arctic sea ice decline -
Arctic shrinkage -
Argo (oceanography) -
ARkStorm -
Athabasca oil sands -
Atlantic Multidecadal Oscillation -
Atmospheric circulation -
Atmospheric sciences -
Atmospheric window -
Attribution of recent climate change -
Aviation and climate change -
Aviation and the environment -
Avoiding dangerous climate change
B
Bali Communiqué -
Bali Road Map -
Bezos Earth Fund -
Biochar -
Bioenergy with carbon capture and storage -
Bio-geoengineering -
Black carbon -
Blytt–Sernander system -
Broad spectrum revolution -
Business action on climate change
C
Callendar effect -
Cap and Share -
Carbon bubble -
Carbon capture and storage -
Carbon cycle -
Carbon negative -
Carbon neutral -
Carbon price -
Carbon project -
Carbon sequestration -
Carbon offset -
Carbon sink -
Carbon tax -
Catastrophic climate change -
Center for the Study of Carbon Dioxide and Global Change -
Clathrate gun hypothesis -
Clean coal technology -
Clean Energy Trends -
Climate -
Climate change -
Climate change acronyms -
Climate Change Act 2008 -
Climate change denial -
Climate change feedback -
Climate change in Japan -
Climate change in popular culture -
Climate change mitigation -
Climate change mitigation -
Climate change mitigation scenarios -
Climate Code Red (book) -
Climate commitment -
Climate communication -
Climate crisis -
Climate crunch -
Climate cycle -
Climate emergency declaration -
Climate engineering -
Climate ethics -
Climate governance-
Climate Investment Funds -
Climate model -
Climate refugee -
Climate risk management -
Climate scientists (list) -
Climate sensitivity -
Climate spiral -
Climate stabilization wedge -
Climate surprise -
Climate system -
Climate variability -
Climate Vulnerable Forum -
Climatic Research Unit email controversy -
Cloud feedback -
Cloud reflectivity enhancement -
Coal phase out -
Contraction and Convergence -
Contrail -
Cool roof -
Cool tropics paradox -
Coral bleaching
D
The Day After Tomorrow -
Dendroclimatology -
Divergence problem -
Drought -
Drought in the United States
E
Early anthropocene -
Earth Hour -
Earth's atmosphere -
Earth's energy budget -
Earthshine -
East Antarctic Ice Sheet -
Eco-efficiency -
Ecological Forecasting -
Ecotax -
Effects of climate change on agriculture -
Effect of climate change on plant biodiversity -
Effects of climate change on marine mammals -
Effects of climate change on oceans -
Effects of climate change -
Effects of climate change on Australia -
Effects of climate change on India -
Efficient energy use -
El Niño (ENSO) -
Emission inventory -
Emission Reduction Unit -
Emission standards -
Emissions trading -
Energie-Cités -
Energy Autonomy -
Energy conservation -
Energy forestry -
Energy poverty -
Enteric fermentation -
Environmental crime -
Environmental impact of aviation -
Environmental skepticism -
European Climate Forum -
Evidence of global warming -
Externality
F
Fossil fuel -
Fossil fuel divestment -
Fossil fuel phase out -
Fossil fuel power plant -
Freon -
Food security
G
G8+5 -
Geoengineering -
GFDL CM2.X -
Glacial period -
Global Change Master Directory -
Global climate model -
Global cooling -
Global climate model (General Circulation Model) -
Global dimming -
Global warming -
Global warming controversy -
Global warming hiatus -
Global warming period -
Global warming potential -
Greenhouse and icehouse Earth -
Greenhouse gas emissions from agriculture -
Greenhouse debt -
Greenhouse effect -
Greenhouse gas -
Greenhouse gas accounting -
Greenhouse gas inventory -
Gulf Stream
H
Heiligendamm Process -
Hell and High Water -
History of climate change science -
Hockey stick graph -
Holocene -
Holocene Climatic Optimum -
Holocene extinction -
Homogenization -
How Global Warming Works -
Hydraulic fracturing -
Hydrological geoengineering -
Hypermobile travellers
I
Ice age -
Ice core -
Ice sheet dynamics -
Individual and political action on climate change -
Insolation -
Instrumental temperature record -
Interdecadal Pacific Oscillation -
Intergovernmental Panel on Climate Change -
International Conference on Climate Change -
IPCC list of greenhouse gases
K
Keeling Curve -
Kyoto Protocol
L
Laudato si -
List of climate scientists -
List of geoengineering topics -
List of ministers of climate change -
List of proposed geoengineering projects -
Little Ice Age -
Long-term effects of global warming
M
Magnetosphere -
Maunder Minimum -
Mauna Loa -
Media coverage of climate change-
Medieval Warm Period -
Meridional overturning circulation -
Meteorology -
Methane -
Methane clathrate -
Milankovitch cycles -
Molecular-scale temperature
N
Nitrous oxide (N2O) -
North Atlantic Deep Water -
North Atlantic oscillation -
Northwest Passage
O
Ocean acidification -
Ocean anoxia -
Older Dryas -
Oldest Dryas -
Overpopulation -
Ozone depletion
P
Pacific decadal oscillation -
Paleocene–Eocene Thermal Maximum -
Paleoclimate Modelling Intercomparison Project -
Paleothermometer -
Parameterization -
Planetary engineering -
Peak oil -
Phenology -
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Quaternary glaciation -
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silent spring | Silent Spring is an environmental science book by Rachel Carson. Published on September 27, 1962, the book documented the environmental harm caused by the indiscriminate use of pesticides. Carson accused the chemical industry of spreading disinformation, and public officials of accepting the industry's marketing claims unquestioningly.
In the late 1950s, Carson began to work on environmental conservation, especially environmental problems that she believed were caused by synthetic pesticides. The result of her research was Silent Spring, which brought environmental concerns to the American public. The book was met with fierce opposition by chemical companies, but it swayed public opinion and led to a reversal in U.S. pesticide policy, a nationwide ban on DDT for agricultural uses, and an environmental movement that led to the creation of the U.S. Environmental Protection Agency.In 2006, Silent Spring was named one of the 25 greatest science books of all time by the editors of Discover magazine.
Research and writing
In the mid-1940s, Carson became concerned about the use of synthetic pesticides, many of which had been developed through the military funding of science after World War II. The United States Department of Agriculture's 1957 fire ant eradication program, which involved aerial spraying of DDT and other pesticides mixed with fuel oil and included the spraying of private land, prompted Carson to devote her research, and her next book, to pesticides and environmental poisons. Landowners in Long Island filed a suit to have the spraying stopped, and many in affected regions followed the case closely. Though the suit was lost, the Supreme Court granted petitioners the right to gain injunctions against potential environmental damage in the future, laying the basis for later environmental actions.The impetus for Silent Spring was a letter written in January 1958 by Carson's friend, Olga Owens Huckins, to The Boston Herald, describing the death of birds around her property in Duxbury, Massachusetts, resulting from the aerial spraying of DDT to kill mosquitoes, a copy of which Huckins sent to Carson. Carson later wrote that this letter prompted her to study the environmental problems caused by chemical pesticides.The Audubon Naturalist Society actively opposed chemical spraying programs and recruited Carson to help publicize the U.S. government's spraying practices and related research. Carson began the four-year project of Silent Spring by gathering examples of environmental damage attributed to DDT. She tried to enlist essayist E. B. White and a number of journalists and scientists to her cause. By 1958, Carson had arranged a book deal, with plans to co-write with Newsweek science journalist Edwin Diamond. However, when The New Yorker commissioned a long and well-paid article on the topic from Carson, she began considering writing more than the introduction and conclusion as planned; soon it became a solo project. Diamond would later write one of the harshest critiques of Silent Spring.As her research progressed, Carson found a sizable community of scientists who were documenting the physiological and environmental effects of pesticides. She took advantage of her personal connections with many government scientists, who supplied her with confidential information on the subject. From reading the scientific literature and interviewing scientists, Carson found two scientific camps: those who dismissed the possible danger of pesticide spraying barring conclusive proof, and those who were open to the possibility of harm and willing to consider alternative methods, such as biological pest control.
By 1959, the USDA's Agricultural Research Service responded to the criticism by Carson and others with a public service film, Fire Ants on Trial; Carson called it "flagrant propaganda" that ignored the dangers that spraying pesticides posed to humans and wildlife. That spring, Carson wrote a letter, published in The Washington Post, that attributed the recent decline in bird populations—in her words, the "silencing of birds"—to pesticide overuse. The same year, the 1957, 1958, and 1959 crops of U.S. cranberries were found to contain high levels of the herbicide aminotriazole and the sale of all cranberry products was halted. Carson attended the ensuing FDA hearings on revising pesticide regulations; she was discouraged by the aggressive tactics of the chemical industry representatives, which included expert testimony that was firmly contradicted by the bulk of the scientific literature she had been studying. She also wondered about the possible "financial inducements behind certain pesticide programs".Research at the National Library of Medicine of the National Institutes of Health brought Carson into contact with medical researchers investigating the gamut of cancer-causing chemicals. Of particular significance was the work of National Cancer Institute researcher and founding director of the environmental cancer section Wilhelm Hueper, who classified many pesticides as carcinogens. Carson and her research assistant Jeanne Davis, with the help of NIH librarian Dorothy Algire, found evidence to support the pesticide-cancer connection; to Carson the evidence for the toxicity of a wide array of synthetic pesticides was clear-cut, though such conclusions were very controversial beyond the small community of scientists studying pesticide carcinogenesis.By 1960, Carson had sufficient research material and the writing was progressing rapidly. She had investigated hundreds of individual incidents of pesticide exposure and the resulting human sickness and ecological damage. In January 1960, she suffered an illness which kept her bedridden for weeks, delaying the book. As she was nearing full recovery in March, she discovered cysts in her left breast, requiring a mastectomy. By December that year, Carson discovered that she had breast cancer, which had metastasized. Her research was also delayed by revision work for a new edition of The Sea Around Us, and by a collaborative photo essay with Erich Hartmann. Most of the research and writing was done by the fall of 1960, except for a discussion of recent research on biological controls and investigations of some new pesticides. However, further health troubles delayed the final revisions in 1961 and early 1962.The work's title was inspired by a poem by John Keats, "La Belle Dame sans Merci", which contained the lines "The sedge is wither'd from the lake, And no birds sing." "Silent Spring" was initially suggested as a title for the chapter on birds. By August 1961, Carson agreed to the suggestion of her literary agent Marie Rodell: Silent Spring would be a metaphorical title for the entire book—suggesting a bleak future for the whole natural world—rather than a literal chapter title about the absence of birdsong. With Carson's approval, editor Paul Brooks at Houghton Mifflin arranged for illustrations by Louis and Lois Darling, who also designed the cover. The final writing was the first chapter, "A Fable for Tomorrow", which was intended to provide a gentle introduction to a serious topic. By mid-1962, Brooks and Carson had largely finished the editing and were planning to promote the book by sending the manuscript to select individuals for final suggestions. In Silent Spring, Carson relied on evidence from two New York state organic farmers, Marjorie Spock and Mary Richards, and that of biodynamic farming advocate Ehrenfried Pfeiffer in developing her case against DDT.
Content
The overarching theme of Silent Spring is the powerful—and often negative—effect humans have on the natural world. Carson's main argument is that pesticides have detrimental effects on the environment; she says these are more properly termed "biocides" because their effects are rarely limited to solely targeting pests. DDT is a prime example, but other synthetic pesticides—many of which are subject to bioaccumulation—are scrutinized. Carson accuses the chemical industry of intentionally spreading disinformation and public officials of accepting industry claims uncritically. Most of the book is devoted to pesticides' effects on natural ecosystems, but four chapters detail cases of human pesticide poisoning, cancer, and other illnesses attributed to pesticides. About DDT and cancer, Carson says only:
In laboratory tests on animal subjects, DDT has produced suspicious liver tumors. Scientists of the Food and Drug Administration who reported the discovery of these tumors were uncertain how to classify them, but felt there was some "justification for considering them low grade hepatic cell carcinomas". Dr. Hueper [author of Occupational Tumors and Allied Diseases] now gives DDT the definite rating of a "chemical carcinogen".
Carson predicts increased consequences in the future, especially since targeted pests may develop resistance to pesticides and weakened ecosystems fall prey to unanticipated invasive species. The book closes with a call for a biotic approach to pest control as an alternative to chemical pesticides.Carson never called for an outright ban on DDT. She said in Silent Spring that even if DDT and other insecticides had no environmental side effects, their indiscriminate overuse was counterproductive because it would create insect resistance to pesticides, making them useless in eliminating the target insect populations:
No responsible person contends that insect-borne disease should be ignored. The question that has now urgently presented itself is whether it is either wise or responsible to attack the problem by methods that are rapidly making it worse. The world has heard much of the triumphant war against disease through the control of insect vectors of infection, but it has heard little of the other side of the story—the defeats, the short-lived triumphs that now strongly support the alarming view that the insect enemy has been made actually stronger by our efforts. Even worse, we may have destroyed our very means of fighting.
Carson also said that "Malaria programmes are threatened by resistance among mosquitoes", and quoted the advice given by the director of Holland's Plant Protection Service: "Practical advice should be 'Spray as little as you possibly can' rather than 'Spray to the limit of your capacity'. Pressure on the pest population should always be as slight as possible."
Politics
At the time the book was written, environmental issues were excluded from mainstream political conversation in America. However, Carson believed that governments should consider what environmental impact a policy may have before implementing it, for example, in chapter 10 she describes a pesticide program from 1957 that was intended to control the spread of fire ants:With the development of chemicals of broad lethal powers, there came a sudden change in the official attitude towards the fire ant. In 1957 the United States Department of Agriculture launched one of the most remarkable publicity campaigns in its history. The fire ant suddenly became the target of a barrage of government releases, motion pictures, and government-inspired stories portraying it as a despoiler of southern agriculture and a killer of birds, livestock, and man. A mighty campaign was announced, in which the federal government in cooperation with the afflicted states would ultimately treat some 20,000,000 acres in nine southern states.Despite calls from experts to consider the damage using the pesticides could bring to the environment, the Agriculture Department dismissed the objections and continued on with the program:Urgent protests were made by most of the state conservation departments, by national conservation agencies, and by ecologists and even by some entomologists, calling upon the then Secretary of Agriculture, Ezra Benson, to delay the program at least until some research had been done to determine the effects of heptachlor and dieldrin on wild and domestic animals and to find the minimum amount that would control the ants. The protests were ignored and the program was launched in 1958. A million acres were treated the first year. It was clear that any research would be in the nature of a post mortem.After the program, an increased number of birds, cattle, horses and other wildlife were found dead in the areas where the pesticides had been sprayed. To make matters worse, the heptachlor and dieldrin sprayed accomplished nothing, instead creating more infested areas. Had the government researched the impact the chemicals could have on wildlife they could have prevented the deaths and environmental damage and saved the taxpayer's money. Overall, Silent Spring not only uncovered the many negative effects pesticides have on the environment but also asked for environmental issues to be discussed and treated seriously within the political sphere.
Promotion and reception
Carson and the others involved with publication of Silent Spring expected fierce criticism and were concerned about the possibility of being sued for libel. Carson was undergoing radiation therapy for her cancer and expected to have little energy to defend her work and respond to critics. In preparation for the anticipated attacks, Carson and her agent attempted to amass prominent supporters before the book's release.Most of the book's scientific chapters were reviewed by scientists with relevant expertise, among whom Carson found strong support. Carson attended the White House Conference on Conservation in May 1962; Houghton Mifflin distributed proof copies of Silent Spring to many of the delegates and promoted the upcoming serialization in The New Yorker. Carson also sent a proof copy to Supreme Court Associate Justice William O. Douglas, a long-time environmental advocate who had argued against the court's rejection of the Long Island pesticide spraying case and had provided Carson with some of the material included in her chapter on herbicides.Though Silent Spring had generated a fairly high level of interest based on pre-publication promotion, this became more intense with its serialization, which began in the June 16, 1962, issue. This brought the book to the attention of the chemical industry and its lobbyists, as well as the American public. Around that time, Carson learned that Silent Spring had been selected as the Book of the Month for October; she said this would "carry it to farms and hamlets all over that country that don't know what a bookstore looks like—much less The New Yorker". Other publicity included a positive editorial in The New York Times and excerpts of the serialized version were published in Audubon Magazine. There was another round of publicity in July and August as chemical companies responded. The story of the birth defect-causing drug thalidomide had broken just before the book's publication, inviting comparisons between Carson and Frances Oldham Kelsey, the Food and Drug Administration reviewer who had blocked the drug's sale in the United States.In the weeks before the September 27, 1962, publication, there was strong opposition to Silent Spring from the chemical industry. DuPont, a major manufacturer of DDT and 2,4-D, and Velsicol Chemical Company, the only manufacturer of chlordane and heptachlor, were among the first to respond. DuPont compiled an extensive report on the book's press coverage and estimated impact on public opinion. Velsicol threatened legal action against Houghton Mifflin, and The New Yorker and Audubon Magazine unless their planned Silent Spring features were canceled. Chemical industry representatives and lobbyists lodged a range of non-specific complaints, some anonymously. Chemical companies and associated organizations produced brochures and articles promoting and defending pesticide use. However, Carson's and the publishers' lawyers were confident in the vetting process Silent Spring had undergone. The magazine and book publications proceeded as planned, as did the large Book-of-the-Month printing, which included a pamphlet by William O. Douglas endorsing the book.American Cyanamid biochemist Robert White-Stevens and former Cyanamid chemist Thomas Jukes were among the most aggressive critics, especially of Carson's analysis of DDT. According to White-Stevens, "If man were to follow the teachings of Miss Carson, we would return to the Dark Ages, and the insects and diseases and vermin would once again inherit the earth". Others attacked Carson's personal character and scientific credentials, her training being in marine biology rather than biochemistry. White-Stevens called her "a fanatic defender of the cult of the balance of nature", while some credited former U.S. Secretary of Agriculture Ezra Taft Benson, in a letter to former President Dwight D. Eisenhower, as the source of a frequent question posed by Carson's critics: "Why a spinster with no children was so concerned about genetics?" His supposed conclusion: Carson was "probably a Communist".Monsanto published 5,000 copies of a parody called "The Desolate Year" (1962) which projected a world of famine and disease caused by banning pesticides.Many critics repeatedly said Carson was calling for the elimination of all pesticides, but she had made it clear she was not advocating this but was instead encouraging responsible and carefully managed use with an awareness of the chemicals' impact on ecosystems. She concludes her section on DDT in Silent Spring with advice for spraying as little as possible to limit the development of resistance. Mark Hamilton Lytle writes, Carson "quite self-consciously decided to write a book calling into question the paradigm of scientific progress that defined postwar American culture".The academic community—including prominent defenders such as H. J. Muller, Loren Eiseley, Clarence Cottam and Frank Egler—mostly backed the book's scientific claims and public opinion backed Carson's text. The chemical industry campaign was counterproductive because the controversy increased public awareness of the potential dangers of pesticides, an early example of the Streisand Effect. Pesticide use became a major public issue after a CBS Reports television special, The Silent Spring of Rachel Carson, which was broadcast on April 3, 1963. The program included segments of Carson reading from Silent Spring and interviews with other experts, mostly critics including White-Stevens. According to biographer Linda Lear, "in juxtaposition to the wild-eyed, loud-voiced Dr. Robert White-Stevens in white lab coat, Carson appeared anything but the hysterical alarmist that her critics contended". Reactions from the estimated audience of ten to fifteen million were overwhelmingly positive and the program spurred a congressional review of pesticide hazards and the public release of a pesticide report by the President's Science Advisory Committee. Within a year of publication, attacks on the book and on Carson had lost momentum.In one of her last public appearances, Carson testified before President John F. Kennedy's Science Advisory Committee, which issued its report on May 15, 1963, largely backing Carson's scientific claims. Following the report's release, Carson also testified before a U.S. Senate subcommittee to make policy recommendations. Though Carson received hundreds of other speaking invitations, she was unable to accept most of them because her health was steadily declining, with only brief periods of remission. She spoke as much as she could, and appeared on The Today Show and gave speeches at several dinners held in her honor. In late 1963, she received a flurry of awards and honors: the Audubon Medal from the National Audubon Society, the Cullum Geographical Medal from the American Geographical Society, and induction into the American Academy of Arts and Letters.
Of Carson, Maria Popova wrote, "Her lyrical writing rendered her not a mere translator of the natural world, but an alchemist transmuting the steel of science into the gold of wonder."
Translations
The book was translated into German (under the title Der stumme Frühling), with the first German edition appearing in 1963, followed by a number of later editions.It was translated into French (as Printemps silencieux), with the first French edition also appearing in 1963.In 1964 the book was translated into Dutch (as "Dode lente"), according to Worldcat.org the second edition was published in 1962.It was translated into Japanese (as 生と死の妙薬), with the first Japanese edition also appearing in 1964.In 1965 Silent Spring was published in the USSR in Russian (under the title Безмолвная весна).The book's Italian title is Primavera silenziosa.; and the Spanish title is Primavera silenciosa.
Impact
Grassroots environmentalism and the EPA
Carson's work had a powerful impact on the environmental movement. Silent Spring became a rallying point for the new social movement in the 1960s. According to environmental engineer and Carson scholar H. Patricia Hynes, "Silent Spring altered the balance of power in the world. No one since would be able to sell pollution as the necessary underside of progress so easily or uncritically." Carson's work and the activism it inspired are partly responsible for the deep ecology movement and the strength of the grassroots environmental movement since the 1960s. It was also influential to the rise of ecofeminism and to many feminist scientists. Carson's most direct legacy in the environmental movement was the campaign to ban the use of DDT in the United States, and related efforts to ban or limit its use throughout the world. The 1967 formation of the Environmental Defense Fund was the first major milestone in the campaign against DDT. The organization brought lawsuits against the government to "establish a citizen's right to a clean environment", and the arguments against DDT largely mirrored Carson's. By 1972, the Environmental Defense Fund and other activist groups had succeeded in securing a phase-out of DDT use in the United States, except in emergency cases.The creation of the Environmental Protection Agency by the Nixon Administration in 1970 addressed another concern that Carson had written about. Until then, the USDA was responsible both for regulating pesticides and promoting the concerns of the agriculture industry; Carson saw this as a conflict of interest, since the agency was not responsible for effects on wildlife or other environmental concerns beyond farm policy. Fifteen years after its creation, one journalist described the EPA as "the extended shadow of Silent Spring". Much of the agency's early work, such as enforcement of the 1972 Federal Insecticide, Fungicide, and Rodenticide Act, was directly related to Carson's work. Contrary to the position of the pesticide industry, the DDT phase-out action taken by the EPA (led by William Ruckelshaus) implied that there was no way to adequately regulate DDT use. Ruckelshaus' conclusion was that DDT could not be used safely. History professor Gary Kroll wrote, "Rachel Carson's Silent Spring played a large role in articulating ecology as a 'subversive subject'—as a perspective that cuts against the grain of materialism, scientism, and the technologically engineered control of nature."In a 2013 interview, Ruckelshaus briefly recounted his decision to ban DDT except for emergency uses, noting that Carson's book featured DDT and for that reason the issue drew considerable public attention.Former Vice President of the United States and environmentalist Al Gore wrote an introduction to the 1992 edition of Silent Spring. He wrote: "Silent Spring had a profound impact ... Indeed, Rachel Carson was one of the reasons that I became so conscious of the environment and so involved with environmental issues ... [she] has had as much or more effect on me than any, and perhaps than all of them together."
Debate over environmentalism and DDT restrictions
Carson has been targeted by some organizations opposed to the environmental movement, including Roger Bate of the pro-DDT advocacy group Africa Fighting Malaria and the libertarian think tank Competitive Enterprise Institute; these sources oppose restrictions on DDT, attribute large numbers of deaths to such restrictions, and argue that Carson was responsible for them. These arguments have been dismissed as "outrageous" by former WHO scientist Socrates Litsios. May Berenbaum, University of Illinois entomologist, says, "to blame environmentalists who oppose DDT for more deaths than Hitler is worse than irresponsible". Investigative journalist Adam Sarvana and others characterize this notion as a "myth" promoted principally by Roger Bate of the pro-DDT advocacy group Africa Fighting Malaria (AFM).In the 1990s and 2000s, campaigns against the book intensified, in part due to efforts by the tobacco industry to cast larger doubt on science-driven policy as a way of contesting bans on smoking. In 2009, the heavily corporate-funded libertarian think tank Competitive Enterprise Institute set up a website falsely blaming Carson for deaths to malaria. This triggered a point-by-point rebuttal by biographer William Souder, who reviewed the distortions used by campaigners against Silent Spring.A 2012 review article in Nature by Rob Dunn commemorating the 50th anniversary of Silent Spring and summarizing the progressive environmental-policy changes made since then, prompted a response in a letter written by Anthony Trewavas and co-signed by 10 others, including Christopher Leaver, Bruce Ames and Peter Lachmann, who quote estimates of 60 to 80 million deaths "as a result of misguided fears based on poorly understood evidence".Biographer Hamilton Lytle believes these estimates are unrealistic, even if Carson can be "blamed" for worldwide DDT policies. John Quiggin and Tim Lambert wrote, "the most striking feature of the claim against Carson is the ease with which it can be refuted". DDT was never banned for anti-malarial use, and its ban for agricultural use in the United States in 1972 did not apply outside the U.S. nor to anti-malaria spraying. The international treaty that banned most uses of DDT and other organochlorine pesticides—the 2001 Stockholm Convention on Persistent Organic Pollutants (which became effective in 2004)—included an exemption for the use of DDT for malaria control until affordable substitutes could be found. Mass outdoor spraying of DDT was abandoned in poor countries subject to malaria, such as Sri Lanka, in the 1970s and 1980s; this was not because of government prohibitions but because the DDT had lost its ability to kill the mosquitoes. Because of insects' very short breeding cycle and large number of offspring, the most resistant insects survive and pass on their genetic traits to their offspring, which replace the pesticide-slain insects relatively rapidly. Agricultural spraying of pesticides produces pesticide resistance in seven to ten years.Some experts have said that restrictions placed on the agricultural use of DDT have increased its effectiveness for malaria control. According to pro-DDT advocate Amir Attaran, the result of the (activated in 2004) Stockholm Convention banning DDT's use in agriculture "is arguably better than the status quo ... For the first time, there is now an insecticide which is restricted to vector control only, meaning that the selection of resistant mosquitoes will be slower than before."
Legacy
Silent Spring has been featured in many lists of the best nonfiction books of the twentieth century. It was fifth in the Modern Library List of Best 20th-Century Nonfiction and number 78 in the National Review's 100 best non-fiction books of the 20th century. In 2006, Silent Spring was named one of the 25 greatest science books of all time by the editors of Discover Magazine. In 2012, the American Chemical Society designated the legacy of Silent Spring a National Historic Chemical Landmark at Chatham University in Pittsburgh.In 1996, a follow-up book, Beyond Silent Spring, co-written by H. F. van Emden and David Peakall, was published.In 1967 George Newson composed the tape composition Silent Spring using birdsong recorded at London Zoo as source material. It was premiered at the Queen Elizabeth Hall in January 1968.Silent Spring is mentioned in the 2008 science fiction novel The Three-Body Problem by Liu Cixin.
In 2011, the American composer Steven Stucky wrote the eponymously titled symphonic poem Silent Spring to commemorate the fiftieth anniversary of the book's publication. The piece was given its world premiere in Pittsburgh on February 17, 2012, with the conductor Manfred Honeck leading the Pittsburgh Symphony Orchestra.Naturalist David Attenborough has stated that Silent Spring was probably the book that had changed the scientific world the most, after the Origin of Species by Charles Darwin.
See also
References
Sources and further reading
External links
Silent Spring at Faded Page (Canada)
The New York Times July 22, 1962 report of chemical industry's campaign against the 16 Archived July 3, 2014, at the Wayback Machine, 23 Archived May 27, 2014, at the Wayback Machine, 30 Archived May 27, 2014, at the Wayback Machine June 1962 serial in The New Yorker
New York Times book review September 23, 1962
Graham, Frank Jr.; Since Silent Spring: rebuttal to the attack by chemical-agribusiness companies Archived April 17, 2014, at the Wayback Machine; Audubon Magazine
Doyle, Jack “Power in the Pen”: Silent Spring: 1962 (Publishing, Politics, Ecology) pophistorydig.com
Natural Resources Defense Council (NRDC): The Story of Silent Spring – NRDC
Photos of the first edition of Silent Spring
Silent Spring, A Visual History curated by the Michigan State University Museum
Rachel Carson's Silent Spring Turns 50 – Elizabeth Grossman – The Atlantic
Griswold, Eliza; How Silent Spring Ignited the Environmental Movement The New York Times September 21, 2012
The Rachel Carson Council |
environmental issues in brazil | Environmental issues in Brazil include deforestation, illegal wildlife trade, illegal poaching, air, land degradation, and water pollution caused by mining activities, wetland degradation, pesticide use and severe oil spills, among others. As the home to approximately 13% of all known species, Brazil has one of the most diverse collections of flora and fauna on the planet. Impacts from agriculture and industrialization in the country threaten this biodiversity.
Deforestation
Deforestation in Brazil is a major issue; the country once had the highest rate of deforestation in the world. By far the most deforestation comes from cattle ranchers that clear rainforest (sometimes illegally, sometimes legally), so as to make room for sowing grass and giving their cattle the ability to graze on this location. An important route taken by cattle ranchers and their cattle is the Trans-Amazonian Highway.
Deforestation has been a significant source of pollution, biodiversity loss, and greenhouse gas emissions worldwide, but deforestation has been Brazil's foremost cause of environmental and ecological degradation. Since 1970, over 600,000 square kilometers of Amazonian rainforest have been destroyed and the level of deforestation in the protected zones of Brazil's Amazon rainforest increased by over 127 percent between 2000 and 2010. Recently, further destruction of the Amazon Rainforest has been promoted by an increased global demand for Brazilian wood, meat, and soybeans. Also, as of 2019, some environmental laws have been weakened and there has been a cut in funding and personnel at key government agencies and a firing of the heads of the agency’s state bodies.Brazil had a 2018 Forest Landscape Integrity Index mean score of 7.52/10, ranking it 38th globally out of 172 countries.
Hydroelectric dams
Around 150 hydroelectric dams are planned to be constructed in the Amazon basin (of which a large part is situated in Brazil). This could be especially problematic in regards to methane emissions if they would require inundating part of the lowland rainforest.
Endangered species
Brazil is home to over 6% of the world's endangered species. According to a species assessment conducted by the IUCN Red List of Endangered Species, 97 species have been identified in Brazil with vulnerable, lower risk/near threatened, endangered, or critically endangered standing. In 2009, 769 endangered species were identified in Brazil making it home to the eighth largest number of endangered species in the world. Much of this increase in Brazil, as well as the countries it precedes, is caused by rapid deforestation and industrialization. This has been noted by Carlos Minc, Brazil's Environment Minister, who states that as protected areas are populated by humans, preservation areas are lacking the essential protection they need. Changing environmental factors are largely responsible for the increase in the number of endangered species. Taking into account the large effects that deforestation and industrialization have had, it becomes clear that by increasing regulation and policy these detrimental effects can be reversed.
Waste
Brazil's population has a stable growth rate at 0.83% (2012), unlike China or India which are experiencing a rapid urban growth. With a steady growth rate, the challenge for waste management in Brazil is in regard to provision of adequate financing and government funding. While funding is inadequate, lawmakers and municipal authorities are taking steps to improve their individual cities' waste management systems. These individual efforts by city officials are made in response to the lack of an all-encompassing law that manages the entire country's waste materials. Even though there are collection services, they tend to focus in the south and southeast of Brazil. However, Brazil does regulate dangerous waste materials such as oil, tires and pesticides.In 2014, Brazil hosted the FIFA World Cup. As a result, a great amount of investment entered the country, yet waste management improvements still lack funds. In order to address the lack of federal involvement, the public and private sectors, as well as formal and informal markets, are developing potential solutions to these problems. International organizations as well are teaming up with local city officials such as in the case of the United Nations Environment Programme (UNEP). Since 2008, the UNEP has been working with Brazil to create a sustainable waste management system that promotes environmental preservation and conservation along with the protection of public health. This partnership is between the UNEP and city officials who form the Green and Healthy Environments Project in São Paulo. With community involvement, the project is able to promote policies that establish environmental change. According to a UNEP report, the project has already gathered research on sanitation in Brazil.
With the various partnerships and collaborations, certain cities are making strides in efficiently managing their waste, but a more comprehensive and conclusive decision must be made for the entire country to create a more sustainable future.
Collection services
Currently, collection services are more prominent in the south and southeast regions of Brazil. Various methods are used to separate waste materials, such as paper, metal and glass. According to Integrated Municipal Solid Waste Management, solid waste in Brazil is composed of 65% organic matter, 25% paper, 4% metal, 3% glass, and 3% plastic. Within 405 municipalities, 7% of the country's total municipalities, 50% of the separation of these materials is conducted through door-to-door service, 26% through collection points, and 43% through informal street waste pickers. A major victory for waste collection was between 2006 and 2008 when the country's waste collection services expanded to service an additional one million people, bringing the rate of separated waste collection among the country's population to 14%.
Landfills
While waste collection in Brazil is improving slightly, the ultimate of waste commonly takes place in inadequate landfills. While landfills are often viewed as the last option for waste disposal in European nations, preferring waste-to-energy systems instead, Brazil favors landfills and believes they are efficient modes of disposal. The preference for landfills has hindered the creation of alternative methods of waste disposal. Often, this hesitation is in response to the initial costs of adopting new solutions. For example, incinerators are expensive to purchase, operate and maintain, eliminating them as an option for most cities in Brazil. According to the Integrated Municipal Solid Waste Management Manual, landfill usage will begin to fall due to new regulation and laws. As the risks and environmental hazards of open air landfills are understood by municipality administrators in Brazil, more dumps are being closed in favor of sanitary landfills. However, these policy changes will only happen with appropriate financing.
Waste-to-energy
Waste-to-energy is one way to dispose of all combustible waste in which recycling alone is not economically viable. As income levels rise in the southern region of Brazil, citizens are urging officials to improve waste management systems. However, the results are limited as no commercial facilities are currently being constructed. Even though citizens and officials are beginning to understand the harm of landfills and the importance of waste management, most do not understand waste-to-energy systems. On the other hand, waste-to-energy industry leaders do not understand the current waste condition in Brazil.
In order to provide specific solutions to problems in Brazil, the Waste to Energy Research Technology Counsel in Brazil is developing a hybrid municipal solid waste (MSW)/natural gas cycle. This system burns a small amount of natural gas that is 45% efficient and 80% of the energy that is produced by MSW is 34% efficient. Their patented system takes a small gas turbine and mixes it with preheated air. Another benefit of using low amounts of natural gas is the possibility of replacing it with landfill gas, ethanol, or renewable fuels. Another benefit is that this system does not change current incinerator technology, which allows it to use components that already exist in other waste-to-energy plants.
Private sector involvement in the waste-to-energy industry includes companies such as Siemens, CNIM, Keppel-Seghers, Hitachi Zosen Inova, Sener, Pöyry, Fisia-Babcock, Malcolm Pirnie and others who are already established in Brazil and developing waste-to-energy projects. Some cities currently considering such projects are Belo Horizonte, Rio de Janeiro, São Paulo, São José dos Campos, São Bernardo do Campo and others.
Clean development mechanism projects are also beginning to develop at some Brazilian landfills. These projects are established to collect gases produced on-site and convert them into energy. For example, at a landfill in Nova Iguaçu (Rio de Janeiro area), methane is being collected and converted into electricity. This process is expected to eliminate 2.5 million tons of carbon dioxide emissions by 2012.
Recycling
According to data from the Brazilian Association of Public Cleaning and Special Waste Companies including sewage, Brazil is a leader in aluminum can recycling without government intervention with ten cans being recycled every year. In 2007, more than 96% of cans available in the market were recycled. This leadership comes from informal waste scavengers that make their living by collecting aluminum cans. However, recycling in general in Brazil is low. Brazil produces 240 thousand tons of waste every day. Out of this amount, only 2% is recycled with the remainder dumped in landfills.
In 1992, private companies in Brazil established the Brazilian Business Commitment for Recycling (CEMPRE), a nonprofit organization that promotes recycling and waste elimination. The organization issues publications, conducts technical research, holds seminars and maintains databases. Nevertheless, only 62% of the population has access to the garbage collection. Even within these collection systems, the collection of recyclable material is not common.
The success of informal waste pickers provided evidence to lawmakers and citizens that solutions that are low tech, low cost, and labor-intensive can provide sustainable solutions to waste management while also providing social and economic benefits.
Recycling is very important in are surrounding because many of the people throw the garbage in the rivers.
Production of first-generation biofuels
Brazil is the second-largest producer of ethanol in the world. Ethanol production in Brazil uses sugarcane as feedstock and relies on first-generation biofuel technologies based on the use of the sucrose content of sugarcane. First-generation biofuels
Pollution
Air pollution
Due to its unique position as the only area of the world which extensively utilizes ethanol, air quality issues in Brazil relate more to ethanol-derived emissions. With about 40% of fuel used in Brazilian vehicles sourced from ethanol, air pollution in Brazil differs from that of other nations where predominately petroleum or natural gas-based fuels are used. Atmospheric concentrations of acetaldehyde, ethanol and possibly nitrogen oxides are greater in Brazil than most other areas of the world due to their emissions being higher in vehicles using ethanol fuels. The larger urban areas of São Paulo, Rio de Janeiro, and Brasilia suffer from substantial ozone issues because both acetaldehyde and nitrogen oxides are significant contributors to photochemical air pollution and ozone formation. On the other hand, by the mid-1990s, lead levels in the air had decreased by approximately 70% after the widespread introduction of unleaded fuels in Brazil in 1975.Numbers of automobiles and levels of industrialization in Brazilian cities highly influence levels of air pollution in urban areas which have an important impact on health for large population groups in major Brazilian urban areas. Based on annual air pollution data gathered in the cities of Belo Horizonte, Fortaleza, Porto Alegre, Rio de Janeiro, São Paulo, and Vitória between the years of 1998 and 2005, 5% of total annual deaths in the age groups of children age five and younger and adults age 65 and older were attributed to air pollution levels in these cities. Rio de Janeiro and São Paulo were ranked the 12th and 17th most polluted cities in an evaluation based on World Bank and United Nations data of emissions and air quality in 18 mega-cities. The multi-pollutant index used to perform the evaluation did not include any of the pollutants specific to the air quality impacts of ethanol fuel use.
Industrial pollution
The city of Cubatão, designated by the Brazilian government as an industrial zone due in part to its proximity to the Port of Santos, became known as the "Valley of Death" and "the most polluted place on Earth". The area has historically housed numerous industrial facilities including an oil refinery from Petrobras and a steel mill from COSIPA. Operation of such facilities was done so "without any environmental control whatsoever" prompting tragic events throughout the 1970s and 1980s including mudslides and birth defects potentially attributable to heavy pollution in the region. Since that time, efforts have been made to improve environmental conditions in the area including, since 1993, COSIPA's $200 million investment in environmental controls. In 2000, Cubatão's center registered 48 micrograms of particles per cubic meter of air, down from 1984 measurements registering 100 micrograms of particles per cubic meter.Likely due to trade liberalization, Brazil has a high concentration of pollution-intensive export industries. Studies point to this as evidence of Brazil being a pollution haven. The highest of levels of pollution intensity are found in export-related industries such as metallurgy, paper and cellulose, and footwear.
Water pollution
Brazil’s major and medium size metropolitan areas face increasing problems of water pollution. Coastal cities such as Rio de Janeiro and Recife suffer effects of upstream residential and industrial sewage contaminating feeder rivers, lakes, and the ocean. In 2000, only 35% of collected wastewater received any treatment.For example, the Tietê River, which runs through the São Paulo metropolitan area (17 million inhabitants), has returned to its 1990 pollution levels. Despite the support from the IDB, the World Bank and Caixa Econômica Federal in a US$400 million cleanup effort, the level of dissolved oxygen has returned to the critical level of 1990 at 9 mg per liter due to increased levels of unregulated sewerage, phosphorus, and ammonia nitrogen discharged into the river. As of 2007, the state water company Sabesp projects that a minimum of R$3 billion (US$1.7bn) would be necessary to clean up the river.The South and Southeast regions of Brazil experience water scarcity due to overexploitation and misuse of surface water resources, mostly attributable to heavy pollution from sewage, leaking landfills, and industrial waste.According to an investigation by Unearthed, more than 1,200 pesticides and weedkillers, including 193 containing chemicals banned in the EU, have been registered in Brazil between 2016 and 2019.Water pollution is also derived from ethanol production. Due to the size of the industry, its agroindustrial activity in growing, harvesting, and processing sugarcane generates water pollution from the application of fertilizers and agrochemicals, soil erosion, cane washing, fermentation, distillation, the energy producing units installed in mills and by other minor sources of waste water.The two greatest sources of water pollution from ethanol production come from mills in the form of waste water from washing sugarcane stems prior to passing through mills, and vinasse, produced in distillation. These sources increase the biochemical oxygen demand in the waters where they are discharged which leads to the depletion of dissolved oxygen in the water and often causes anoxia. Legislation has banned the direct discharge of vinasse onto surface waters, leading it to be mixed with waste water from the sugarcane washing process to be reused as organic fertilizer on sugarcane fields. Despite this ban, some small sugarcane mills still discharge vinasse into streams and rivers due to a lack of transportation and application resources. Furthermore, vinasse is sometimes mishandled in storage and transport in mills.Guanabara Bay has had three major oil spills as well as other forms of pollution.
The Tietê River has for over twenty years been afflicted with heavy pollution from sewage, primarily from São Paulo, and manufacturing. In 1992, the Tietê Project was initiated in an effort to clean up the river. São Paulo today processes 55% of its sewage and is expected to process 85% by 2018.Mercury pollution from gold mining in Brazil has led to contamination of fish in the state of Amapá.
Climate change
Solutions and policies
Brazil has a generally advanced and comprehensive legislation on environmental protection and sustainability. Laws regarding forests, water, and wildlife have been in effect since the 1930s. Until the mid-1990s, environmental legislation addressed isolated environmental issues; however, the legal framework has been improved through new policy-making that targets environmental issues within the context of an integrated environmental policy. The Brazilian government strives toward the preservation and sustainable development of Brazilian biomes. Consequently, the Brazilian government developed strategies to impose specific policies for each biome and organize opportunities for social participation, institutional reform of the forestry sector, and expansion of the biodiversity concept. For example, the program Legal Earth, developed by the Ministries of Agrarian Development and Environment, has the responsibility to regulate the use of public lands occupied in the Amazon region. This program was successful in restricting the marketing of meat produced on illegally deforested areas and the proper identification of permitted areas for growing sugarcane for the production of ethanol.Brazil recognized that it was part of the solution to the problem of climate change. In 2010, Brazil took the necessary steps to advance its climate change commitments made at the COP-15 in Copenhagen. For example, the policy to combat deforestation in the Amazon in had produced positive results, as demonstrated by announcements of increasingly lower deforestation rates.
Between 2000 and 2010, the deforestation took huge proportions. Then, in 2011, data from the Brazilian Ministry of Environment showed a decrease in deforestation rates in the Amazon Rainforest. This is in part due to an increased awareness of the damaging effects of prolific logging practices and a shift toward sustainable forestry in Brazil. Although forestry companies—many of which are based outside of Brazil—are interested in increasing their longevity, the Brazilian government has been actively promoting more sustainable forestry policies for years. Brazil's National Institute for Space Research (INPE) has helped reduce deforestation levels over the course of 2011 through its Real Time Deforestation Detection System (DETER). Besides DETER, INPE also has the Amazon Deforestation Satellite Monitoring Project (PRODES). Furthermore, Brazil has negotiated to use satellites from India to improve the monitoring of deforestation in the Amazon rain forest. In addition, the Government took measures to more effectively enforce its deforestation reduction policy through shutting down illegal sawmills and seizing illegal timber and vehicles. Brazilian officials and environmental advocates alike were confident that these measures would enhance the Brazilian government's ability to combat deforestation, biodiversity loss, and pollution.
Data from 2010 showed that Brazil has reduced deforestation rates in the Amazon by more than 70%, the lowest deforestation rate in over 20 years. At this rate, Brazil's goal of reducing greenhouse gas emissions by 38.9% was to be reached by 2016 rather than 2020.
Between 2010 and 2018, Amazon deforestation rates have indeed been low, but data suggests that (in the Amazon region), since 2019, the deforestation rate is again rising considerably.Despite all those efforts, however, the problem with deforestation and illegal logging has remained a very serious issue in the country.
Governmental organizations
The Ministry of Environment is responsible for Brazil's national environmental policy. The ministry's many departments deal with climate change and environmental quality, biodiversity and forests, water resources, sustainable urban and rural development, and environmental citizenship. Other authorities are also responsible for the implementation of environmental policies, including the National Council on the Environment, the National Council of the Amazon, the National Council of Water Resources, the Chico Mendes Institute for Biodiversity Conservation (ICMBIO), Brazilian Institute of Environment and Renewable Natural Resources (IBAMA), Board of Management of Public Forests, and others. The collaborative work of these institutions makes it possible to ensure sustainable growth within the means of the environment.
Non-governmental organizations
The development of institutions at the governmental level was stimulated and accompanied by the diffusion and increasing importance of NGOs dedicated to environmental causes and sustainable development. Numerous NGOs throughout Brazil produce documents containing both useful information and criticisms.
International agreements
As part of Brazil's environmental initiatives, it is party to the following international agreements: Antarctic-Environmental Protocol, Antarctic-Marine Living Resources, Antarctic Seals, Antarctic Treaty, Biodiversity, Climate Change, Kyoto Protocol, Desertification, Endangered Species, Environmental Modification, Hazardous Wastes, Law of the Sea, Marine Dumping, Ozone Layer Protection, Ship Pollution, Tropical Timber 83, Tropical Timber 94, Wetlands, Whaling, and the Paris Agreement.
Map of Conflicts Related to Environmental Injustice and Health in Brazil
The "Map of Conflicts Related to Environmental Injustice and Health in Brazil" is an online map of conflicts relating to environmental injustice and health in Brazil. The map is maintained by the National School of Public Health of Brazil, the Oswaldo Cruz Foundation, and Núcleo Ecologías, Epistemiologias e Promoção Emancipatória da Saude (NEEPES). Since 2008, the project has mapped and described major cases of environmental conflicts in all Brazilian regions. The map has been online since 2010. As of June 2022, the map listed at least 600 conflicts.
Governmental Role in Environmental issues
Spearheading the current-day exploitation of the Amazon Rainforest is the administration of President Jair Bolsonaro. Originally running on a platform that included supporting extractivist interests such as enforcing environmental regulations, reforestation, and added protections, Bolsonaro has done quite the opposite. The President encourages the ideology that the Brazilian economy should not be restricted by environmental concerns. His administration has taken all possible steps to increase accessibility to logging, agriculture, and poaching at the great expense of the environment. They have shown a consistent pattern of undermining environmental NGOs, and they periodically announce environmental protection enforcements that typically are not seen through with just to keep international pressures at bay. as of July 2019, about 7 months into his term, the Amazon had lost 1,330 square miles of forest coverage, a 39 percent increase from the period before. Statistics that have continued to increase since. Bolsonaro has also cut the Brazilian Environmental Agency's budget by 24 percent which has led to a 20 percent decrease in their activity. All of this is propelled by the thought that the Amazon Rainforest is theirs to be used for the benefit of the country, prioritizing financial profits over the well-being of the environment.Human Rights Watch sent in a team to Brazil who spent about a year and a half collecting information and interviewed about 170 people, half government employees and half community members. They were investigating a series of forest fires that the Brazilian Government, namely the Environment Minister Joaquim Leite had claimed were due to dry weather. However, satellite imaging showed these fires occurring where rainforest had been cleared for deforestation, and where as a rainforest it would not make sense to have such fires. What they found was that these fires were driven by criminal organizations using violence and intimidation upon forest defenders so that they could benefit from the deforestation. They linked 28 killings of people who were trying to stop these fires back to the criminal networks. Bolsonaro has cleared a path for criminals such as these to operate with few consequences, making illegal deforestation almost impossible to prosecute.One of the large reasons for the recent increase in deforestation in the Amazon Rainforest has been the Ruralista movement, also known as the Landless Workers Movement. Their message is that the large swaths of the Amazon that serve no purpose will be widely privatized, providing a flow of money for the Brazilian economy. This movement consists mainly of very wealthy, conservative people who have used their money to gain political power. With this power, they have acquired a significant membershio in Brazil's National Congress. Their first notable action was rewriting the country's forest code in 2012, where they essentially managed to grant amnesty for illegal deforestation of the Amazon. These Ruralistas were also heavy supporters of Bolsonaro's campaign, and he has repaid them by selecting multiple Ruralistas to be ministers, such as the ministers of agriculture and the environment. Therefore, while Bolsonaro remains in power, the Ruralista agenda of using the Amazon's resources at any environmental cost will continue.While Bolsonaro's administration has certainly damaged the Brazilian environment considerably, he is restricted in several ways. For example, agribusiness is a very large and important part of the Brazilian economy, and therefore it is very important in Congress. Influential sectors of agribusiness are committed to environmental protection, and this balances out some of the ruralista violations. Another is that international pressure, such as the environmental summits that Bolsonaro attends have considerable influence. President Bolsonaro, especially with an election coming up, favors having some credibility with the international environmental protection community. The Public Prosecutor's Office and the Brazilian Judiciary have both been instrumental in limiting the amount of damage that the President is able to inflict upon the environment.Under Bolsonaro, Brazil has been environmentally a very different country than they have been historically. For example, in 2009 Brazil committed to decreasing deforestation to 4,000 square per year, but deforestation has been increasing every year since 2012. In addition, they made a commitment under the Paris Agreement to eliminate all deforestation by 2030, which they could still accomplish under different leadership. Housing such a massive portion of the Amazon Rainforest, an important carbon sink, puts Brazil in a position of major power with whether the country chooses to help or hurt the Earth's worsening climate change issues. If Boslonaro is re-elected, the country will continue to increase deforestation, but if another candidate such as Luiz Inácio Lula da Silva, chances are good that the country re-aligns with their historical identity as a champion of environmental rights.
See also
Conservation in Brazil
Environment of Brazil
Environmental governance in Brazil
Environmental impact of meat production
List of environmental issues
Wildlife of Brazil
== References == |
xeriscaping | Xeriscaping is the process of landscaping, or gardening, that reduces or eliminates the need for irrigation. It is promoted in regions that do not have accessible, plentiful, or reliable supplies of fresh water and has gained acceptance in other regions as access to irrigation water has become limited, though it is not limited to such climates. Xeriscaping may be an alternative to various types of traditional gardening.In some areas, terms such as water-conserving landscaping, drought-tolerant landscaping, and smart scaping are used instead. The use of plants whose natural requirements are appropriate to the local climate is emphasized, and care is taken to avoid losing water to evaporation and runoff. However, the specific plants used in xeriscaping vary based on climate as this strategy can be used in xeric, mesic, and hydric environments. Xeriscaping is different from natural landscaping, because the emphasis in xeriscaping is on selection of plants for water conservation, not necessarily selecting native plants.
Xeriscaping produces greenspaces that require low amounts of maintenance and irrigation, and promote biodiversity; however, due to societal norms and lack of landscape understanding, public perception of xeriscaping has frequently been negative, as some assume that these types of landscapes are ugly expanses of just cactus and gravel. However, studies have shown that education in water conservation practices and xeriscaping's benefits can greatly improve the public's perception of xeriscaping.
Etymology and similar terms
Denver Water coined the term xeriscape in 1981 by combining landscape with the Greek prefix xero-, from ξηρός (xēros), meaning 'dry'. The term zero-scaping (or zeroscaping) is sometimes substituted for xeriscaping due to phonetic similarity. When used seriously, zero-scaping usually refers to a different type of low-water landscaping that uses very few plants or none at all. Because o is the most common connecting vowel in Greco-Roman vocabulary, xeriscaping is sometimes misspelled as xeroscaping. Similar terms and phrases include water-conserving landscaping, drought-tolerant landscaping, and smart scaping.
Advantages
Xeriscaping has the potential to reduce water usage and maintenance, improve biodiversity, lower pollution, as well as mitigate heat within urban areas; however, the effectiveness of this sustainable process has not been evaluated on a long-term large-scale basis. It was found that in arid US states, like Arizona and Nevada, that 75% of households' potable water was used to water residential and urban lawns. Xeriscaping aims to help preserve water for people and animals amidst an increase in droughts brought about by climate change.
Water conservation and lower maintenance
Xeriscapes can reduce water consumption by 60% or more compared to regular lawn landscapes. In Turkey, one of the first large scale xeriscaping evaluations was conducted. It was found that switching an average city park to more native vegetation in the region can lower irrigation usage by 30–50%. Assuming a water usage reduction of 30% it was found that a city can save roughly $2 million annually (however, this exact value is dependent on location). The use of native plants lowers the necessity of watering as the vegetation has already adapted to thrive in the climate and does not require assistance with irrigation or fertilization.
The Leadership in Energy and Environmental Design program has recognized xeriscaping as an effective water reduction process and has started to incorporate credits in the certification process across all their programs for facilities that reduce their outside water use and irrigation. This credit can be met by using xeriscape strategies and efficient irrigation systems. This further validates the beneficial claims behind xeriscaping, and it is anticipated that more energy and environmental credit systems as well state ran programs will encourage and incentivize xeriscaping for greenspace development.While evaluating the cost of annual maintenance and park construction, xeriscaping drastically lowers these costs by roughly 55% and 57%, respectively. Aside from occasional weeding and mulching, xeriscaping requires far less time and effort to maintain. This is the case because under xeriscaping principles the vegetation used for urban greenspaces are indigenous to the area; therefore, are less expensive and require less assistance to acclimate and survive in the environment when compared to imported vegetation. This means that the systems use less water as well as lower rates of pesticides, and fertilizers when compared to current urban and residential greenspaces; this further helps lower annual maintenance costs. Furthermore, maintenance waste, such as lawn clippings, contribute organic waste to landfills and fertilizers contribute to urban runoff pollution; however, xeriscaping eliminates these negative effects as clippings are encouraged to remain on the greenspace which allows for a lower use of fertilizers.
Biodiversity
Often times when areas develop there is a loss of forestation, and animal populations dwindle as they are forced to relocate. Implementing native vegetation in green spaces helps improve the insect and wildlife found in the environment as the habitat is reestablished to a degree, offering food and shelter to the wildlife. One application of xeriscaping that drastically improves biodiversity is the implementation of pocket forests.
Environmental and thermal discomfort remediation
Additionally, xeriscaping has been theorized to help offset the urban heating island (UHI) effect. UHI refers to the phenomenon in which urban areas are found to be hotter than neighboring rural sites due to large amounts of human activity. This temperature difference of a city area and its surroundings is usually higher at night as winds are lower and cannot dissipate the large amounts of heat generated in an urban area’s boundaries as readily. Upon investigating xeriscaping strategies in Phoenix, Arizona, it was found that dry areas that utilized xeriscaping with shade trees were found to mitigate UHI effects during the day and night with an average temperature difference of roughly 2.5 oC (4.5 oF) cooler. However, when these same strategies were implemented in a mesic area, an environment with moderate amounts of moisture, it was found that thermal discomfort increased for residents and that these strategies had opposite effects to their intentions. Although xeriscaping strategies were found to mitigate UHI effects, it remains important to consider the climate and current landscape in which it is implemented in, in order to maximize its benefits and effectiveness.
Legal issue
Some homeowners associations (HOAs) have strict rules requiring a certain percentage of land to be used as lawns but these rules either have been or are in the process of being overturned in many areas. As it stands most states in arid and hot climate regions in the US have started to pass legislation that allows homeowners to design lawns using xeriscaping methods. These states are currently Texas, Nevada, Arizona, California, Colorado, Louisiana, and Florida. Most states currently do not have direct legislation regarding a homeowner’s right to landscape in relation to existing HOAs; however, most allow residents to at least protest HOA requirements and landscape their lawn with "reasonable" designs.As more homeowners take up xeriscaping, or drought-tolerant landscaping, garden retailers have struggled to keep up. A burgeoning poaching trade has filled the gap with cacti and succulents stolen from parks and private lands. Buyers as far away as Europe and Asia can end up with yuccas, agaves, and ocotillos uprooted illegally from southern North America and shipped overseas.
Principles
Originally conceived by Denver Water, the seven design principles of xeriscaping have since expanded into simple and applicable concepts to creating landscapes that use less water. The principles are appropriate for multiple regions and can serve as a guide to creating a water conserving landscape that is regionally appropriate.
Plan and design
Create a diagram, drawn to scale, that shows the major elements of the landscape, such as impervious surfaces, existing vegetation, and other permanent elements.Once a base plan of an existing site has been determined, the creation of a conceptual plan (bubble diagram) is done which shows the areas for turf, perennial beds, views, screens, slopes, etc. Once finished, the development of a planting plan that integrates plants into zones is done.
Soil amendment
Most plants will benefit from the use of a soil conditioner such as compost, which will help the soil retain water. However, some desert plants prefer gravel soils instead of well-amended soils.
Plants can either fit the soil or the soil should be amended to fit the plants. Soil is essential to most plant growth, so it is important that this step is not overlooked or undervalued.
Efficient irrigation
A xeriscape can be irrigated efficiently by hand or with an automatic sprinkler system. In the design process it is recommended that turf areas are zoned separately from other plant sections, and that efficient irrigation methods used appropriately for each zone. For grass, use gear-driven rotors, or rotary spray nozzles, that have larger droplets and low angles to avoid wind drift. While drip line or bubbler emitters are most efficient for watering trees, shrubs, flowers and groundcovers.If watering by hand, avoid oscillating sprinklers and other devices that throw water high in the air or release a fine mist. The most efficient sprinklers release big drops close to the ground.When irrigating it is important to water deeply and infrequently to develop deep roots and healthy plants. To reduce water lost to evaporation, watering should be avoided during the day. The use of automatic sprinkling systems is highly encouraged as well as adjusting the controller monthly to accommodate weather conditions. It is often recommended to also install a rain sensor to shut off the device when it rains.
Appropriate plant and zone selection
Greenspaces often have differing environmental conditions when considering amount of light per day (due to building shadows), wind, and moisture. To minimize water waste, it is essential to group together plants with similar light and water needs, and place them in areas of the greenspace that match these requirements; for example, moderate-water-use plants should be placed in low-lying drainage areas, near downspouts, or in the shade of other plants. Turf typically requires the most water and shrub/perennial beds will require approximately half the amount of water as the turf. Planting a variety of plants with different heights, color, and textures creates interest and beauty as well as promotes biodiversity.
Mulch
Mulch keeps plant roots cool, prevents soil from crusting, minimizes evaporation, and reduces weed growth. Organic mulches, such as bark chips, pole peelings, or wood grindings, should be applied 2 to 4 inches deep to help promote root growth. Fiber mulches create a web that is more resistant to wind and rain washout. When using inorganic mulches, such as rocks and gravel, they should be applied 2 to 3 inches deep. Surrounding plants with rock makes the area hotter as they absorb sunlight, so it is recommended to limit this practice when xeriscaping.
Limited turf areas
Turf areas use the most water so it is important to use the appropriate grass as well as limit the amount of grass in the environment. Native grasses (warm-season) that have been cultivated for turf lawns, such as buffalo grass and blue grama, can survive with a quarter of the water that bluegrass varieties need. Warm-season grasses are greenest in June through September and may go dormant during colder months.Native grasses (cool season) such as bluegrass and tall fescue, are greenest in the spring and fall and go dormant in the high heat of the summer. New cultivars of bluegrass, such as Reveille, and tall fescue, can reduce typical bluegrass water requirements by at least 30%. Fine fescues can provide substantial water savings and are best used in areas that receive low traffic or highly shaded locations.
Maintenance
All landscapes require some degree of care during the year. Turf requires spring and fall aeration along with regular fertilization every 6 to 8 weeks. Additionally, the turf should be cut to a height of 3 inches with a bagless lawnmower, allowing the clippings to fall. Trees, shrubs, and perennials will need occasional pruning to remove dead stems, promote blooming, or control height and spread. To promote zero waste and avoid adding organic materials to landfills, the removed plant material can be shredded and used in composting piles.
Lawns and applications
One of the major challenges to the public acceptance of xeriscaping is the cultural attachment to turf grass lawns. Originally implemented in England, lawns have become in some regions a symbol of prosperity, order, and community. In the United States, turf grasses are so common that it is the single most irrigated nonfood crop by surface area, covering nearly 128,000 square kilometres (49,000 sq mi). Despite the high water, fertilizer, and maintenance costs associated with lawns, they have become the social norm in urban and suburban areas, even if they are rarely used for recreational or other purposes. Xeriscaping offers an alternative to the over-use of turf grass lawns, but are not widely accepted because of preconceived notions of what it means to xeriscape. Xeriscaping can include lawn areas but seeks to reduce them to areas that will actually be used, rather than using them as a default landscaping plan. Furthermore, xeriscaping is closely linked to movements and ideologies that advocate for more natural vegetation in residential and urban areas. One form of xeriscaping that has received a lot of attention is the implementation of pocket forests.Akira Miyawaki is a Japanese botanist that developed the idea of pocket forests which reintroduces indigenous trees and vegetation to developed environments in order to promote strong biodiversity. The method calls for the planting naturally occurring trees and shrubbery densely into small compact areas, that can range from a size of a tennis court to a parking space. These pocket forests increase biodiversity, reduce noise (if placed near streets or noise polluters), improve air quality and soil retention, help with reforestation, and efficiently capture carbon dioxide. In order to promote fast growth and biodiversity the engineered ecosystem requires a layering of vegetation: the ground layer, a shrub layer, and a canopy layer. Due to this compact layering these forests usually are well established within two decades rather than the 70-plus years it takes for naturally occurring forests.Other forms of xeriscaping include rain gardens. These gardens are used to reduce the amount of runoff from impervious areas (such as roofs, driveways, sidewalks, etc.) and rely on water retentive plants and soil mediums to help filter pollutants from the storm water before it is reintroduced into aquifers and storm drains. These gardens require little irrigation and maintenance, and help protect waterways and remove pollutants.There are many other forms and applications of xeriscaping: it is essentially any form of landscaping that requires little to no irrigation. However, it is important to take note of the environment before implementation, and follow the principles, as success of one type of xeriscape in a xeric climate might not have the same effects if it were implemented in a mesic or hydric environment.
See also
References
== External links == |
organic food | Organic food, ecological food, or biological food are foods and drinks produced by methods complying with the standards of organic farming. Standards vary worldwide, but organic farming features practices that cycle resources, promote ecological balance, and conserve biodiversity. Organizations regulating organic products may restrict the use of certain pesticides and fertilizers in the farming methods used to produce such products. Organic foods are typically not processed using irradiation, industrial solvents, or synthetic food additives.In the 21st century, the European Union, the United States, Canada, Mexico, Japan, and many other countries require producers to obtain special certification to market their food as organic. Although the produce of kitchen gardens may actually be organic, selling food with an organic label is regulated by governmental food safety authorities, such as the National Organic Program of the US Department of Agriculture (USDA) or the European Commission (EC).From an environmental perspective, fertilizing, overproduction, and the use of pesticides in conventional farming may negatively affect ecosystems, soil health, biodiversity, groundwater, and drinking water supplies. These environmental and health issues are intended to be minimized or avoided in organic farming.Demand for organic foods is primarily driven by consumer concerns for personal health and the environment, such as the detrimental environmental impacts of pesticides. From the perspective of science and consumers, there is insufficient evidence in the scientific and medical literature to support claims that organic food is either substantially safer or healthier to eat than conventional food.
Organic agriculture has higher production costs and lower yields, higher labor costs, and higher consumer prices as compared to conventional farming methods.
Meaning, history and origin of the term
For the vast majority of its history, agriculture can be described as having been organic; only during the 20th century was a large supply of new products, generally deemed not organic, introduced into food production. The organic farming movement arose in the 1940s in response to the industrialization of agriculture.In 1939, Lord Northbourne coined the term organic farming in his book Look to the Land (1940), out of his conception of "the farm as organism", to describe a holistic, ecologically balanced approach to farming—in contrast to what he called chemical farming, which relied on "imported fertility" and "cannot be self-sufficient nor an organic whole". Early soil scientists also described the differences in soil composition when animal manures were used as "organic", because they contain carbon compounds, whereas superphosphates and Haber process nitrogen do not. Their respective use affects humus content of soil. This is different from the scientific use of the term "organic" in chemistry, which refers to a class of molecules that contain carbon, especially those involved in the chemistry of life. This class of molecules includes everything likely to be considered edible, as well as most pesticides and toxins too, therefore the term "organic" and, especially, the term "inorganic" (sometimes wrongly used as a contrast by the popular press) as they apply to organic chemistry is an equivocation fallacy when applied to farming, the production of food, and to foodstuffs themselves. Properly used in this agricultural science context, "organic" refers to the methods grown and processed, not necessarily the chemical composition of the food.
Ideas that organic food could be healthier and better for the environment originated in the early days of the organic movement as a result of publications like the 1943 book The Living Soil and Farming and Gardening for Health or Disease (1945).In the industrial era, organic gardening reached a modest level of popularity in the United States in the 1950s. In the 1960s, environmentalists and the counterculture championed organic food, but it was only in the 1970s that a national marketplace for organic foods developed.Early consumers interested in organic food would look for non-chemically treated, non-use of unapproved pesticides, fresh or minimally processed food. They mostly had to buy directly from growers. Later, "Know your farmer, know your food" became the motto of a new initiative instituted by the USDA in September 2009. Personal definitions of what constituted "organic" were developed through firsthand experience: by talking to farmers, seeing farm conditions, and farming activities. Small farms grew vegetables (and raised livestock) using organic farming practices, with or without certification, and the individual consumer monitored. Small specialty health food stores and co-operatives were instrumental to bringing organic food to a wider audience. As demand for organic foods continued to increase, high-volume sales through mass outlets such as supermarkets rapidly replaced the direct farmer connection. Today, many large corporate farms have an organic division. However, for supermarket consumers, food production is not easily observable, and product labeling, like "certified organic", is relied upon. Government regulations and third-party inspectors are looked to for assurance.In the 1970s, interest in organic food grew with the rise of the environmental movement and was also spurred by food-related health scares like the concerns about Alar that arose in the mid-1980s.
Legal definition
Organic food production is distinct from private gardening. In the EU, organic farming and organic food are more commonly known as ecological or biological, or in short 'eco' and 'bio'.Currently, the European Union, the United States, Canada, Japan, and many other countries require producers to obtain special certification based on government-defined standards to market food as organic within their borders. In the context of these regulations, foods marketed as organic are produced in a way that complies with organic standards set by national governments and international organic industry trade organizations.
In the United States, organic production is managed in accordance with the Organic Foods Production Act of 1990 (OFPA) and regulations in Title 7, Part 205 of the Code of Federal Regulations to respond to site-specific conditions by integrating cultural, biological, and mechanical practices that foster cycling of resources, promote ecological balance, and conserve biodiversity. If livestock are involved, the livestock must be reared with regular access to pasture and without the routine use of antibiotics or growth hormones.Processed organic food usually contains only organic ingredients. If non-organic ingredients are present, at least a certain percentage of the food's total plant and animal ingredients must be organic (95% in the United States, Canada, and Australia). Foods claiming to be organic must be free of artificial food additives, and are often processed with fewer artificial methods, materials and conditions, such as chemical ripening, food irradiation, and genetically modified ingredients. Pesticides are allowed as long as they are not synthetic. However, under US federal organic standards, if pests and weeds are not controllable through management practices, nor via organic pesticides and herbicides, "a substance included on the National List of synthetic substances allowed for use in organic crop production may be applied to prevent, suppress, or control pests, weeds, or diseases". Several groups have called for organic standards to prohibit nanotechnology on the basis of the precautionary principle in light of unknown risks of nanotechnology.: 5–6 The use of nanotechnology-based products in the production of organic food is prohibited in some jurisdictions (Canada, the UK, and Australia) and is unregulated in others.: 2, section 1.4.1(l) To be certified organic, products must be grown and manufactured in a manner that adheres to standards set by the country they are sold in:
Australia: NASAA Organic Standard
Canada:
European Union: EU-Eco-regulation
Sweden: KRAV
United Kingdom: DEFRA
Poland: Association of Polish Ecology
Norway: Debio Organic certification
India: National Program for Organic Production (NPOP)
Indonesia: BIOCert, run by Agricultural Ministry of Indonesia.
Japan: JAS Standards
Mexico: Consejo Nacional de Producción Orgánica, department of Sagarpa
New Zealand: there are three bodies; BioGro, AsureQuality, and OFNZ
United States: National Organic Program (NOP) StandardsIn the United States, there are four different levels or categories for organic labeling:
"100% Organic": This means that all ingredients are produced organically. It also may have the USDA seal.
"Organic": At least 95% or more of the ingredients are organic.
"Made With Organic Ingredients": Contains at least 70% organic ingredients.
"Less Than 70% Organic Ingredients": Three of the organic ingredients must be listed under the ingredient section of the label.In the U.S., the food label "natural" or "all natural" does not mean that the food was produced and processed organically.
Environmental sustainability
From an environmental perspective, fertilizing, overproduction and the use of pesticides in conventional farming has caused, and is causing, enormous damage worldwide to local ecosystems, soil health, biodiversity, groundwater and drinking water supplies, and sometimes farmers' health and fertility.Organic farming typically reduces some environmental impact relative to conventional farming, but the scale of reduction can be difficult to quantify and varies depending on farming methods. In some cases, reducing food waste and dietary changes might provide greater benefits. A 2020 study at the Technical University of Munich found that the greenhouse gas emissions of organically farmed plant-based food were lower than conventionally-farmed plant-based food. The greenhouse gas costs of organically produced meat were approximately the same as non-organically produced meat. However, the same paper noted that a shift from conventional to organic practices would likely be beneficial for long-term efficiency and ecosystem services, and probably improve soil over time.A 2019 life-cycle assessment study found that converting the total agricultural sector (both crop and livestock production) for England and Wales to organic farming methods would result in a net increase in greenhouse gas emissions as increased overseas land use for production and import of crops would be needed to make up for lower organic yields domestically.
Health and safety
There is little scientific evidence of benefit or harm to human health from a diet high in organic food, and conducting any sort of rigorous experiment on the subject is very difficult. A 2012 meta-analysis noted that "there have been no long-term studies of health outcomes of populations consuming predominantly organic versus conventionally produced food controlling for socioeconomic factors; such studies would be expensive to conduct." A 2009 meta-analysis noted that "most of the included articles did not study direct human health outcomes. In ten of the included studies (83%), a primary outcome was the change in antioxidant activity. Antioxidant status and activity are useful biomarkers but do not directly equate to a health outcome. Of the remaining two articles, one recorded proxy-reported measures of atopic manifestations as its primary health outcome, whereas the other article examined the fatty acid composition of breast milk and implied possible health benefits for infants from the consumption of different amounts of conjugated linoleic acids from breast milk." In addition, as discussed above, difficulties in accurately and meaningfully measuring chemical differences between organic and conventional food make it difficult to extrapolate health recommendations based solely on chemical analysis.
According to a newer review, studies found adverse effects of certain pesticides on children's cognitive development at current levels of exposure. Many pesticides show neurotoxicity in laboratory animal models and some are considered to cause endocrine disruption.As of 2012, the scientific consensus is that while "consumers may choose to buy organic fruit, vegetables and meat because they believe them to be more nutritious than other food.... the balance of current scientific evidence does not support this view." The evidence of beneficial health effects of organic food consumption is scarce, which has led researchers to call for more long-term studies. In addition, studies that suggest that organic foods may be healthier than conventional foods face significant methodological challenges, such as the correlation between organic food consumption and factors known to promote a healthy lifestyle. When the American Academy of Pediatrics reviewed the literature on organic foods in 2012, they found that "current evidence does not support any meaningful nutritional benefits or deficits from eating organic compared with conventionally grown foods, and there are no well-powered human studies that directly demonstrate health benefits or disease protection as a result of consuming an organic diet."Prevalent use of antibiotics in livestock used in non-organic meat is a key driver of antibiotic resistance.
Consumer safety
Pesticide exposure
Claims of improved safety of organic food have largely focused on pesticide residues. These concerns are driven by the facts that "(1) acute, massive exposure to pesticides can cause significant adverse health effects;
(2) food products have occasionally been contaminated with pesticides, which can result in acute toxicity; and (3) most, if not all, commercially purchased food contains trace amounts of agricultural pesticides." However, as is frequently noted in the scientific literature: "What does not follow from this, however, is that chronic exposure to the trace amounts of pesticides found in food results in demonstrable toxicity. This possibility is practically impossible to study and quantify;" therefore firm conclusions about the relative safety of organic foods have been hampered by the difficulty in proper study design and relatively small number of studies directly comparing organic food to conventional food.
Additionally, the Carcinogenic Potency Project, which is a part of the US EPA's Distributed Structure-Searchable Toxicity (DSSTox) Database Network, has been systemically testing the carcinogenicity of chemicals, both natural and synthetic, and building a publicly available database of the results for the past ~30 years. Their work attempts to fill in the gaps in our scientific knowledge of the carcinogenicity of all chemicals, both natural and synthetic, as the scientists conducting the Project described in the journal, Science, in 1992: Toxicological examination of synthetic chemicals, without similar examination of chemicals that occur naturally, has resulted in an imbalance in both the data on and the perception of chemical carcinogens. Three points that we have discussed indicate that comparisons should be made with natural as well as synthetic chemicals.1) The vast proportion of chemicals that humans are exposed to occur naturally. Nevertheless, the public tends to view chemicals as only synthetic and to think of synthetic chemicals as toxic despite the fact that every natural chemical is also toxic at some dose. The daily average exposure of Americans to burnt material in the diet is ~2000 mg, and exposure to natural pesticides (the chemicals that plants produce to defend themselves) is ~1500 mg. In comparison, the total daily exposure to all synthetic pesticide residues combined is ~0.09 mg. Thus, we estimate that 99.99% of the pesticides humans ingest are natural. Despite this enormously greater exposure to natural chemicals, 79% (378 out of 479) of the chemicals tested for carcinogenicity in both rats and mice are synthetic (that is, do not occur naturally).
2) It has often been wrongly assumed that humans have evolved defenses against the natural chemicals in our diet but not against the synthetic chemicals. However, defenses that animals have evolved are mostly general rather than specific for particular chemicals; moreover, defenses are generally inducible and therefore protect well from low doses of both synthetic and natural chemicals.
3) Because the toxicology of natural and synthetic chemicals is similar, one expects (and finds) a similar positivity rate for carcinogenicity among synthetic and natural chemicals. The positivity rate among chemicals tested in rats and mice is ~50%. Therefore, because humans are exposed to so many more natural than synthetic chemicals (by weight and by number), humans are exposed to an enormous background of rodent carcinogens, as defined by high-dose tests on rodents. We have shown that even though only a tiny proportion of natural pesticides in plant foods have been tested, the 29 that are rodent carcinogens among the 57 tested, occur in more than 50 common plant foods. It is probable that almost every fruit and vegetable in the supermarket contains natural pesticides that are rodent carcinogens.
While studies have shown via chemical analysis, as discussed above, that organically grown fruits and vegetables have significantly lower pesticide residue levels, the significance of this finding on actual health risk reduction is debatable as both conventional foods and organic foods generally have pesticide levels well below government established guidelines for what is considered safe. This view has been echoed by the U.S. Department of Agriculture and the UK Food Standards Agency.A study published by the National Research Council in 1993 determined that for infants and children, the major source of exposure to pesticides is through diet. A study published in 2006 by Lu et al. measured the levels of organophosphorus pesticide exposure in 23 school children before and after replacing their diet with organic food. In this study, it was found that levels of organophosphorus pesticide exposure dropped from negligible levels to undetectable levels when the children switched to an organic diet, the authors presented this reduction as a significant reduction in risk. The conclusions presented in Lu et al. were criticized in the literature as a case of bad scientific communication.More specifically, claims related to pesticide residue of increased risk of infertility or lower sperm counts have not been supported by the evidence in the medical literature. Likewise, the American Cancer Society (ACS) has stated their official position that "whether organic foods carry a lower risk of cancer because they are less likely to be contaminated by compounds that might cause cancer is largely unknown." Reviews have noted that the risks from microbiological sources or natural toxins are likely to be much more significant than short term or chronic risks from pesticide residues.
Microbiological contamination
Organic farming has a preference for using manure as fertilizer, compared to conventional farming in general. This practice seems to imply an increased risk of microbiological contamination, such as E. coli O157:H7, from organic food consumption, but reviews have found little evidence that the actual incidence of outbreaks can be positively linked to organic food production. The 2011 Germany E. coli O104:H4 outbreak, however, was blamed on organically farmed fenugreek sprouts.
Public perception
There is a widespread public belief that organic food is safer, more nutritious, and better tasting than conventional food, which has largely contributed to the development of an organic food culture. Consumers purchase organic foods for different reasons, including concerns about the effects of conventional farming practices on the environment, human health, and animal welfare.While there may be some differences in the nutrient and antinutrient contents of organically and conventionally produced food, the variable nature of food production, shipping, storage, and handling makes it difficult to generalize results. Claims that "organic food tastes better" are generally not supported by tests, but consumers often perceive organic food produce like fruits and vegetables to taste better.In general, it seems that the appeal of organic food varies with demographic group and attitudinal characteristics. USA research has found that women, young adults, liberals, and college graduates were significantly more likely to buy organic food regularly when compared to men, older age groups, people of different political affiliations, and less educated individuals. Income level and race/ethnicity did not appear to affect interest in organic foods in this same study. Furthermore, individuals who are only moderately-religious were more likely to purchase organic foods than individuals who were less religious or highly-religious. Additionally, the pursuit of organic foods was positively associated with valuing vegetarian/vegan food options, "natural" food options, and USA-made food options. Organic food may also be more appealing to people who follow other restricted diets. One study found that individuals who adhered to vegan, vegetarian, or pescetarian diet patterns incorporated substantially more organic foods in their diets when compared to omnivores.The most important reason for purchasing organic foods seems to be beliefs about the products' health-giving properties and higher nutritional value. These beliefs are promoted by the organic food industry, and have fueled increased demand for organic food despite higher prices and difficulty in confirming these claimed benefits scientifically. Organic labels also stimulate the consumer to view the product as having more positive nutritional value.Psychological effects such as the "halo" effect are also important motivating factors in the purchase of organic food.In China the increasing demand for organic products of all kinds, and in particular milk, baby food and infant formula, has been "spurred by a series of food scares, the worst being the death of six children who had consumed baby formula laced with melamine" in 2009 and the 2008 Chinese milk scandal, making the Chinese market for organic milk the largest in the world as of 2014. A Pew Research Center survey in 2012 indicated that 41% of Chinese consumers thought of food safety as a very big problem, up by three times from 12% in 2008.A 2020 study on marketing processed organic foods shows that, after much growth in the fresh organic foods sector, consumers have started to buy processed organic foods, which they sometime perceive to be just as healthy or even healthier than the non-organic version – depending on the marketing message.
Taste
There is no good evidence that organic food tastes better than its non-organic counterparts. There is evidence that some organic fruit is drier than conventionally grown fruit; a slightly drier fruit may also have a more intense flavor due to the higher concentration of flavoring substances.Some foods which are picked when unripe, such as bananas, are cooled to prevent ripening while they are shipped to market, and then are induced to ripen quickly by exposing them to propylene or ethylene, chemicals produced by plants to induce their own ripening; as flavor and texture changes during ripening, this process may affect those qualities of the treated fruit.
Chemical composition
With respect to chemical differences in the composition of organically grown food compared with conventionally grown food, studies have examined differences in nutrients, antinutrients, and pesticide residues. These studies generally suffer from confounding variables, and are difficult to generalize due to differences in the tests that were done, the methods of testing, and because the vagaries of agriculture affect the chemical composition of food; these variables include variations in weather (season to season as well as place to place); crop treatments (fertilizer, pesticide, etc.); soil composition; the cultivar used, and in the case of meat and dairy products, the parallel variables in animal production. Treatment of the foodstuffs after initial gathering (whether milk is pasteurized or raw), the length of time between harvest and analysis, as well as conditions of transport and storage, also affect the chemical composition of a given item of food. Additionally, there is evidence that organic produce is drier than conventionally grown produce; a higher content in any chemical category may be explained by higher concentration rather than in absolute amounts.
Nutrients
Many people believe that organic foods have higher content of nutrients and thus are healthier than conventionally produced foods. However, scientists have not been equally convinced that this is the case as the research conducted in the field has not shown consistent results.A 2009 systematic review found that organically produced foodstuffs are not richer in vitamins and minerals than conventionally produced foodstuffs. This systematic review found a lower nitrogen and higher phosphorus content in organic produced compared to conventionally grown foodstuffs. Content of vitamin C, calcium, potassium, total soluble solids, copper, iron, nitrates, manganese, and sodium did not differ between the two categories.A 2012 survey of the scientific literature did not find significant differences in the vitamin content of organic and conventional plant or animal products, and found that results varied from study to study. Produce studies reported on ascorbic acid (vitamin C) (31 studies), beta-carotene (a precursor for vitamin A) (12 studies), and alpha-tocopherol (a form of vitamin E) (5 studies) content; milk studies reported on beta-carotene (4 studies) and alpha-tocopherol levels (4 studies). Few studies examined vitamin content in meats, but these found no difference in beta-carotene in beef, alpha-tocopherol in pork or beef, or vitamin A (retinol) in beef. The authors analyzed 11 other nutrients reported in studies of produce. A 2011 literature review found that organic foods had a higher micronutrient content overall than conventionally produced foods.Similarly, organic chicken contained higher levels of omega-3 fatty acids than conventional chicken. The authors found no difference in the protein or fat content of organic and conventional raw milk.A 2016 systematic review and meta-analysis found that organic meat had comparable or slightly lower levels of saturated fat and monounsaturated fat as conventional meat, but higher levels of both overall and n-3 polyunsaturated fatty acids. Another meta-analysis published the same year found no significant differences in levels of saturated and monounsaturated fat between organic and conventional milk, but significantly higher levels of overall and n-3 polyunsaturated fatty acids in organic milk than in conventional milk.
Anti-nutrients
The amount of nitrogen content in certain vegetables, especially green leafy vegetables and tubers, has been found to be lower when grown organically as compared to conventionally. When evaluating environmental toxins such as heavy metals, the USDA has noted that organically raised chicken may have lower arsenic levels. Early literature reviews found no significant evidence that levels of arsenic, cadmium or other heavy metals differed significantly between organic and conventional food products. However, a 2014 review found lower concentrations of cadmium, particularly in organically grown grains.
Phytochemicals
A 2014 meta-analysis of 343 studies on phytochemical composition found that organically grown crops had lower cadmium and pesticide residues, and 17% higher concentrations of polyphenols than conventionally grown crops. Concentrations of phenolic acids, flavanones, stilbenes, flavones, flavonols, and anthocyanins were elevated, with flavanones being 69% higher. Studies on phytochemical composition of organic crops have numerous deficiencies, including absence of standardized measurements and poor reporting on measures of variability, duplicate or selective reporting of data, publication bias, lack of rigor in studies comparing pesticide residue levels in organic and conventional crops, the geographical origin of samples, and inconsistency of farming and post-harvest methods.
Pesticide residues
The amount of pesticides that remain in or on food is called pesticide residue. In the United States, before a pesticide can be used on a food crop, the U.S. Environmental Protection Agency must determine whether that pesticide can be used without posing a risk to human health.A 2012 meta-analysis determined that detectable pesticide residues were found in 7% of organic produce samples and 38% of conventional produce samples. This result was statistically heterogeneous, potentially because of the variable level of detection used among these studies. Only three studies reported the prevalence of contamination exceeding maximum allowed limits; all were from the European Union. A 2014 meta-analysis found that conventionally grown produce was four times more likely to have pesticide residue than organically grown crops.The American Cancer Society has stated that no evidence exists that the small amount of pesticide residue found on conventional foods will increase the risk of cancer, although it recommends thoroughly washing fruits and vegetables. They have also stated that there is no research to show that organic food reduces cancer risk compared to foods grown with conventional farming methods.The Environmental Protection Agency maintains strict guidelines on the regulation of pesticides by setting a tolerance on the amount of pesticide residue allowed to be in or on any particular food.
Although some residue may remain at the time of harvest, residue tend to decline as the pesticide breaks down over time. In addition, as the commodities are washed and processed prior to sale, the residues often diminish further.
Bacterial contamination
A 2012 meta-analysis determined that prevalence of E. coli contamination was not statistically significant (7% in organic produce and 6% in conventional produce). Differences in the prevalence of bacterial contamination between organic and conventional animal products were also statistically insignificant.
Organic meat production requirements
United States
Organic meat certification in the United States requires farm animals to be raised according to USDA organic regulations throughout their lives. These regulations require that livestock are fed certified organic food that contains no animal byproducts. Further, organic farm animals can receive no growth hormones or antibiotics, and they must be raised using techniques that protect native species and other natural resources. Irradiation and genetic engineering are not allowed with organic animal production. One of the major differences in organic animal husbandry protocol is the "pasture rule": minimum requirements for time on pasture do vary somewhat by species and between the certifying agencies, but the common theme is to require as much time on pasture as possible and reasonable.
Economics
Organic agriculture has higher potential costs due to lower yields and higher labor costs, leading to higher consumer prices. Demand for organic foods is primarily driven by concerns for personal health and for the environment. Global sales for organic foods climbed by more than 170 percent since 2002 reaching more than $63 billion in 2011 while certified organic farmland remained relatively small at less than 2 percent of total farmland under production, increasing in OECD and EU countries (which account for the majority of organic production) by 35 percent for the same time period. Organic products typically cost 10% to 50% more than similar conventionally produced products, to several times the price. Processed organic foods vary in price when compared to their conventional counterparts.
While organic food accounts for about 1% of total food production worldwide, the organic food sales market is growing rapidly with between 5 and 10 percent of the food market share in the United States according to the Organic Trade Association, significantly outpacing sales growth volume in dollars of conventional food products. World organic food sales jumped from US$23 billion in 2002 to $63 billion in 2011.
Asia
Production and consumption of organic products is rising rapidly in Asia, and both China and India are becoming global producers of organic crops and a number of countries, particularly China and Japan, also becoming large consumers of organic food and drink. The disparity between production and demand, is leading to a two-tier organic food industry, typified by significant and growing imports of primary organic products such as dairy and beef from Australia, Europe, New Zealand and the United States.
China
China's organic food production was originally for exportation in the early 2000s. Due to the food safety crisis since the late 2000s, China's domestic market outweighed the exportation market. The organic food production in China involves diverse players. Besides certified organic food production mainly conducted by private organic food companies, there are also non-certified organic farming practiced by entrepreneurs and civil society organizations. These initiatives have unique marketing channels such as ecological farmers' markets and community-supported agriculture emerging in and around Chinese major cities.
China's domestic organic market is the fourth largest in the world. The Chinese Organic Food Development Center estimated domestic sales of organic food products to be around US$500 million per annum as of 2013. This is predicted to increase by 30 percent to 50 percent in 2014. As of 2015, organic foods made up about 1% of the total Chinese food market.
China is the world's biggest infant formula market with $12.4 billion in sales annually; of this, organic infant formula and baby food accounted for approximately 5.5 per cent of sales in 2011. Australian organic infant formula and baby food producer Bellamy's Organic have reported that their sales in this market grew 70 per cent annually over the period 2008–2013, while Organic Dairy Farmers of Australia, reported that exports of long-life organic milk to China had grown by 20 to 30 per cent per year over the same period.Sri LankaIn April 2021, Sri Lanka started its "100% organic farming" program, banning imports of chemical fertilisers, pesticides and herbicides. In November 2021, it was announced that the country will lift its import ban, explained by both a lack of sudden changes to widely applied practices or education systems and contemporary economics and, by extension, food security, protests and high food costs. The effort for the first transition to a completely organic farming nation was further challenged by effects of the COVID-19 pandemic.
BhutanIn 2013 the government of Bhutan announced that the country will become the first in the world with 100% organic farming and started a program for qualification. This program is being supported by the International Federation of Organic Agriculture Movements (IFOAM). A 2021 news report found that "globally, only Bhutan has a complete ban on synthetic pesticides". A 2018 study found that "current organic by default farming practices in Bhutan are still underdeveloped".
Japan
In 2010, the Japanese organic market was estimated to be around $1.3 billion.
North America
United States
Organic food is the fastest growing sector of the American food industry.
In 2005 the organic food market was only worth about US$13 billion. By 2012 the total size of the organic food market in the United States was about $30 billion (out of the total market for organic and natural consumer products being about $81 billion) In 2020 the organic food market was worth over $56 billion.
Organic food sales have grown by 17 to 20 percent a year in the early 2000s while sales of conventional food have grown only about 2 to 3 percent a year. The US organic market grew 9.5% in 2011, breaking the $30bn barrier for the first time, and continued to outpace sales of non-organic food.
In 2003 organic products were available in nearly 20,000 natural food stores and 73% of conventional grocery stores.
Organic products accounted for 3.7% of total food and beverage sales, and 11.4% of all fruit and vegetable sales in the year 2009.
As of 2012, many independent organic food processors in the USA had been acquired by multinational firms.
For a product to become USDA organic certified, the farmer cannot plant genetically modified seeds and livestock cannot eat genetically modified plants. Farmers must provide substantial evidence showing there was no genetic modification involved in the operation.Canada
Organic food sales surpassed $1 billion in 2006, accounting for 0.9% of food sales in Canada. By 2012, Canadian organic food sales reached $3 billion.
British Columbians account for 13% of the Canadian population, but purchased 26% of the organic food sold in Canada in 2006.
Europe
Denmark
In 2012, organic products accounted for 7.8% of the total retail consumption market in Denmark, the highest national market share in the world. Many public institutions have voluntarily committed themselves to buy some organic food and in Copenhagen 75% of all food served in public institutions is organic. A governmental action plan initiated in 2012–2014 aims at 60% organic food in all public institutions across the country before 2020.: 4
In 1987, the first Danish Action Plan was implemented which was meant to support and stimulate farmers to switch from conventional food production systems to organic ones . Since then Denmark has constantly worked on further developing the market by promoting organic food and keeping prices low in comparison to conventional food products by offering farmers subvention and extra support if they choose to produce organic food. Then and even today is the bench mark for organic food policy and certification of organic food in the whole world. The new European Organic food label and organic food policy was developed based on the 1987 Danish Model.Austria
In 2011, 7.4% of all food products sold in Austrian supermarkets (including discount stores) were organic. In 2007, 8,000 different organic products were available.
Italy
Since 2000, the use of some organic food is compulsory in Italian schools and hospitals. A 2002 law of the Emilia Romagna region implemented in 2005, explicitly requires that the food in nursery and primary schools (from 3 months to 10 years) must be 100% organic, and the food in meals at schools, universities and hospitals must be at least 35% organic.
Poland
In 2005 7 percent of Polish consumers buy food that was produced according to the EU-Eco-regulation. The value of the organic market is estimated at 50 million euros (2006).
Romania
70%–80% of the local organic production, amounting to 100 million euros in 2010, is exported. The organic products market grew to 50 million euros in 2010.
Switzerland
As of 2012, 11 per cent of Swiss farms are organic. Bio Suisse, the Swiss organic producers' association, provides guidelines for organic farmers.
Ukraine
In 2009 Ukraine was in 21st place in the world by area under cultivation of organic food. Much of its production of organic food is exported and not enough organic food is available on the national market to satisfy the rapidly increasing demand. The size of the internal market demand for organic products in Ukraine was estimated at over 5 billion euros in 2011, with rapid growth projected for this segment in the future. Multiple surveys show that the majority of the population of Ukraine is willing to pay more to buy organic food. On the other hand, many Ukrainians have traditionally maintained their own garden plots, and this may result in underestimation of how much organically produced food is actually consumed in Ukraine.
The Law on Organic Production was passed by Ukraine's parliament in April 2011, which in addition to traditional demands for certified organic food also banned the use of GMOs or any products containing GMOs. However, the law was not signed by the President of Ukraine and in September 2011 it was repealed by the Verkhovna Rada itself. The new Organic Production Law was adopted by Rada and signed by President Poroshenko in July 2018.United Kingdom
Organic food sales increased from just over £100 million in 1993/94 to £1.21 billion in 2004 (an 11% increase on 2003). In 2010, the UK sales of organic products fell 5.9% to £1.73 billion. 86% of households buy organic products, the most popular categories being dairies (30.5% of sales) and fresh fruits and vegetables (23.2% of sales). As of 2011, 4.2% of UK farmland is organically managed.
Latin America
Cuba
After the collapse of the Soviet Union in 1991, agricultural inputs that had previously been purchased from Eastern bloc countries were no longer available in Cuba, and many Cuban farms converted to organic methods out of necessity. Consequently, organic agriculture is a mainstream practice in Cuba, while it remains an alternative practice in most other countries. Although some products called organic in Cuba would not satisfy certification requirements in other countries (crops may be genetically modified, for example), Cuba exports organic citrus and citrus juices to EU markets that meet EU organic standards. Cuba's forced conversion to organic methods may position the country to be a global supplier of organic products.
See also
References
Further reading
Canavari, Maurizio; Olson, Kent D., eds. (2007). Organic food: consumers' choices and farmers' opportunities. Springer. ISBN 978-0-387-39581-4.
Duram, Leslie A. (2010). Encyclopedia of Organic, Sustainable, and Local Food. ABC-CLIO. ISBN 978-0-313-35963-7.
Givens, D. Ian; et al. (2008). Health Benefits of Organic Food: Effects of the Environment. CABI. ISBN 978-1-84593-459-0.
Nestle, Marion (2007). Food Politics: How the Food Industry Influences Nutrition and Health. University of California Press. ISBN 978-0-520-25403-9.
PAN-UK (2008). Pesticides on a Plate. PAN-UK (UK). ISBN 978-0-9549542-6-0.
Pollan, Michael (2006). The Omnivore's Dilemma: A Natural History of Four Meals. The Penguin Press. ISBN 978-1-59420-082-3.
Pretty, J. N.; et al. (2006). "Resource-Conserving Agriculture Increases Yields in Developing Countries". Environmental Science and Technology. 40 (4): 1114–1119. Bibcode:2006EnST...40.1114P. doi:10.1021/es051670d. PMID 16572763.
External links
A World Map of Organic Agriculture
UK Organic certification and standards
India – National Program for Organic Production (NPOP) |
environmental mitigation | Environmental mitigation, compensatory mitigation, or mitigation banking, are terms used primarily by the United States government and the related environmental industry to describe projects or programs intended to offset known impacts to an existing historic or natural resource such as a stream, wetland, endangered species, archeological site, paleontological site or historic structure. Environmental mitigation is typically a part of an environmental crediting system established by governing bodies which involves allocating debits and credits. Debits occur in situations where a natural resource has been destroyed or severely impaired and credits are given in situations where a natural resource has been deemed to be improved or preserved. Therefore, when an entity such as a business or individual has a "debit" they are required to purchase a "credit". In some cases credits are bought from "mitigation banks" which are large mitigation projects established to provide credit to multiple parties in advance of development when such compensation cannot be achieved at the development site or is not seen as beneficial to the environment. Crediting systems can allow credit to be generated in different ways. For example, in the United States, projects are valued based on what the intentions of the project are which may be to preserve, enhance, restore or create (PERC) a natural resource.
Advantages
Environmental mitigation and crediting systems are often praised for the following reasons:
Development-friendly
Mitigation is a more development-friendly alternative to strict environmental laws because it allows development to occur where environmental laws might prohibit it.
Mitigation industry
Mitigation inevitably creates a "mitigation industry". By requiring those who impact natural resources to purchase credits, a demand for mitigation credit is formed. Businesses related to environmental work typically benefit from such a system.
Targeting ecological value
Mitigation has the potential to save and restore the most valuable environmental resources at the least cost, assuming that regulation
protects health and welfare as defined by the National Environmental Policy Act (NEPA) and
assures that a credit accurately represents measurable ecological value.Buyers are typically looking for mitigation credits that are both cheap and the most likely to meet regulatory requirements for compensatory mitigation. Regulators must therefore find a balance between protecting the long term public interest and ensuring that buyers have the proper incentives to participate in the environmental marketplace.
Cost burden
Mitigation systems place the environmental costs of development mostly on the individuals or entities that are impacting the environment. Without environmental mitigation, costs of alleviating environmental damage caused by development could be placed in the hands of the government which would in turn pass costs on to taxpayers not responsible for environmental impacts.
Benefit to landowners
Land previously unused or impractical for development is given greater monetary value under a mitigation system. For instance, land in floodplains may be impractical for commercial or residential development but conducive for mitigation activities. Land in rural areas with very little potential for growth are more valuable when given the opportunity to be used for mitigation credits.
Disadvantages
The following are criticisms of environmental mitigation and crediting systems:
Incorrect allocation and valuation of credits and debits
Mitigation regulations may not properly take into account the total ecological losses and gains associated with environmental impacts or mitigation when allocating debits and credits. Governing bodies are primarily responsible for prescribing the ecological criteria required to attain credits for mitigation. They are also responsible for valuation of credit. Therefore, it is evident that problems with the allocation and valuation of credits and debits might stem from the complexity of assessing the current comparative value of ecological resources (aka ecosystem services), ecosystem change over time, and/or a lack of understanding about what is beneficial or harmful to the environment overall. To address these uncertainties regulators often assign 'coverage ratios' to compensatory mitigation agreements. Coverage ratios of, for example, 3:1 require 3 compensatory mitigation credits for every 1 unit of ecological disturbance.
Effects on land cost and availability
Mitigation could be seen as contributing to the increasing cost of land because some mitigation work requires that large amounts of land be purchased or put into conservation easements. Mitigation can therefore compete with other rural land uses such as agriculture and residential development. This suggests that land owners must be alert to find the highest and best use for their properties given the potential market value that mitigation credits represent.
'In perpetuity' commitments of land
Commitment of lands to compensatory mitigation must be done 'in perpetuity', meaning permanently into the future. Otherwise, the long-term public interest could not be served via compensatory mitigation programs. This means that properties must continue to be managed with ecosystem values in mind, sometimes preventing landowners from transforming the landscape to meet changing needs. For example, future large scale development projects would not likely be permitted on previously dedicated mitigation properties.
Notes and references
See also
Mitigation banking
External links
United States EPA Compensatory Mitigation website
National Mitigation Banking Association
Endangered Species and Threatened Wildlife and Plants; Recovery Crediting Guidance |
environmental issues in africa | African environmental issues are caused by human impacts on the natural environment and affect humans and nearly all forms of life. Issues include deforestation, soil degradation, air pollution, water pollution, garbage pollution, climate change and water scarcity (resulting in problems with access to safe water supply and sanitation). These issues result in environmental conflict and are connected to broader social struggles for democracy and sovereignty.
Deforestation
The large scale felling of trees and the resulting decreases in forest areas are the main environmental issues of the African Continent. Rampant clearing of forests and land conversion goes on for agriculture, settlement and fuel needs. Ninety percent of Africa's population requires wood to use as fuel for heating and cooking. As a result, forested areas are decreasing daily, as for example, in the region of equatorial evergreen forests. According to the United Nations Environment Programme, Africa's desertification rate is twice that of the world's.
The rate of illegal logging, which is another main cause of deforestation, varies from country to country, such as 50% in Cameroon and 80% in Liberia. In the Democratic Republic of the Congo, deforestation is primarily caused by the needs of the poor citizens, along with unsupervised logging and mining.
In Ethiopia, the main cause is the country's growing population, which induces an increase in agriculture, livestock production, and fuel wood. Low education and little government intervention also contributes to deforestation. Madagascar's forest loss is partially caused by citizens using slash-and-burn techniques after independence from the French. In 2005, Nigeria had the highest rate of deforestation in the world, according to the Food and Agriculture Organisation of the United Nations (FAO). Deforestation in Nigeria is caused by logging, subsistence agriculture, and the collection of wood for fuel. According to the gfy, deforestation has wiped out nearly 90% of Africa's forest. West Africa only has 22.8% of its moist forests left, and 81% of Nigeria's old-growth forests disappeared within 15 years. Deforestation also lowers the chance of rainfall; Ethiopia has experienced famine and droughts because of this. 98% of Ethiopia's forests have disappeared over the last 50 years.
Within 43 years, Kenya's forest coverage decreased from about 10% to 1.7%. Deforestation in Madagascar has also led to desertification, soil loss, and water source degradation, resulting in the country's inability to provide necessary resources for its growing population. In the last five years, Nigeria lost nearly half of its primary forests.
Ethiopia's government, along with organizations like Farm Africa, is starting to take steps to stop excessive deforestation.
Deforestation is an issue, and forests are important in Africa, as populations have relied heavily on them to provide basic needs. Woods are used for shelter, clothing, agricultural elements, and much more. Woodland supplies are also used to create medicines and a wide variety of food. Some of these foods include fruits, nuts, honey, and much more. Wood is crucial for economic gain in Africa, especially in developing countries. Forests also help the environment. It is estimated that the green belt of Africa contains over 1.5 million species. Without the forest habitat to protect the species, the populations are at risk. The livelihoods of millions of people and species are at risk with deforestation. The act is a domino effect that affects multiple aspects of a community, ecosystem, and economy.Many African nations have begun to implement restoration projects to reverse the effects of deforestation. These projects have been shown to improve the environment in many ways and the livelihood of the people living near them. For example "Reforestation and agroforestry schemes can help, for instance, to sequester carbon, prevent flooding, enhance biodiversity, rehabilitate degraded lands, provide a local energy supply for the rural poor and improve land use and watershed management."
Soil degradation
The erosion caused by rains, rivers and winds as well as over-use of soils for agriculture and low use of manures have resulted in turning the soils infertile, as for example, in the plains of the Nile and the Orange River. A main cause of soil degradation is lack of manufactured fertilizers being used, since African soil lacks organic sources of nutrients and also dumping of plastic waste such as polythene bags, broken plates, basins, water drums, plastic water bottles and jerrycans on the soils. The increase in population has also contributed when people need to crop, as a source of income, but do not take measures to protect the soil, due to low income. The current methods create too much pressure on other environmental aspects, such as forests, and are not sustainable. There are also ecological causes of the poor soil quality. Much of the soil has rocks or clay from volcanic activity. Other causes include erosion, desertification, and deforestation. Another source of soil degradation is the improper management of waste, lack of facilities and techniques to handle waste lead to the dumping of waste in soil, therefore causes soil degradation by process such as leaching.
Degradation of African soil causes decreased food production, damaging ecological effects, and an overall decrease in the quality of living in Africa. This issue would lessen if fertilizers and other cropping supplies were more affordable and thus used more. The United Nations has commissioned a Global Assessment of Human Induced Soil Degradation (GLASOD) to further investigate the causes and state of the soil. Access to information collected is freely available, and it is hoped that awareness will be raised among politicians in threatened areas.
Air pollution
The air in Africa is greatly polluted due to multiple reasons stated below. The primitive method of farming that takes place in most areas in Africa is certainly a causal factor. The United Nations' Food and Agriculture Organization (FAO) estimates that 11.3 million hectares of land are being lost annually to agriculture, grazing, uncontrolled burning and fuelwood consumption. Combustion of wood and charcoal are used for cooking and this results to a release of carbon dioxide into the atmosphere, which is a toxic pollutant in the atmosphere. Also, due to the poor supply of power, most homes have to rely on fuel and diesel in generators to keep their electricity running. Air pollution in Africa is coming to the forefront and must not be ignored. For example, in South Africa the mercury levels are severe due to coal combustion and gold mining. Mercury is absorbed from the air into the soil and water. The soil allows the crops to absorb the mercury, which humans ingest. Animals eat the grass which has absorbed the mercury and again humans may ingest these animals. Fish absorb the mercury from the water, humans also ingest the fish and drink the water that have absorbed the mercury. This increases the mercury levels in humans. This can cause serious health risks.It is expected that Africa could represent the half of the world's pollution emissions by 2030, warns Cathy Liousse director of research of atmospheric sounding of the CNRS, along with many other researchers. According to the report, sub-Saharan Africa is experiencing a fast increasing pollution, derived from many causes, such as burning wood for cooking, open burning of waste, traffic, agri-food and chemical industries, the dust from the Sahara carried by the winds through the Sahel area, all this reinforced by a greater population growth and urbanisation.The World Health Organization reports of the need to intervene when more than one third of the total Disability Adjusted Life Years was lost as a result of exposure to indoor air pollution in Africa. Fuel is needed to power lights at night. The fuel being burned causes great emissions of carbon dioxide into the atmosphere. Because of the increased Urbanization in Africa, people are burning more and more fuel and using more vehicles for transportation. The rise in vehicle emissions and the trend towards greater industrialization means the urban air quality in the continent is worsening. This is also the case in many megacities in Nigeria where the key contributors to poor air quality include vehicle emissions, industrial emissions and solid waste burning. Seasonal variations in pollution also exist with the highest levels of air pollution occurring during the dry season (November to March in the north, May to September in the south).In many countries, the use of leaded gasoline is still widespread, and vehicle emission controls are nonexistent. Indoor air pollution is widespread, mostly from the burning of coal in the kitchen for cooking. Compounds released from fuel stations and nitrogen and hydrocarbon released from airports cause air pollution. Carbon dioxide other greenhouse gases in the air causes an increase of people with respiratory issues.There is a common relationship between air pollution and population. Africa widely diverse between areas that are overpopulated versus areas that are scarcely populated. In regions where there is little industrial development and few people, air quality is high. Vice versa, in densely populated and industrialized regions the air quality is low. Addressing the air pollution in big cities is often a big priority, even though the continent as a whole produces little air pollutants by international standards. Even so, air pollutants are causing a variety of health and environmental problems. These pollutants are a threat to the population of Africa and the environment they try so hard to sustain.In 2019, air pollution killed 1.1 million people across Africa, according to a study published in The Lancet Planetary Health in October 2021. More than 350 million African children live in households that use solid fuels, mostly wood and coal, for cooking and heating. The emissions from these solid fuels are the main causes of indoor air pollution.
Climate change
Water scarcity
Plastic pollution
Like in other parts of the developing world, plastic pollution is causing widespread problems such as contamination of waterways, disruption of stormwater management, and increases of disease due to mosquitos and pests living in plastics. Plastic mismanagement is both a combination of cheap supply by all kinds of manufacturers, for example by providing much needed access to water through bottled water and water sachets, and poor management of the waste after use.Some locations in Africa have also been the sourcing of dumping plastic waste from the Global North. Some governments are responding, and the continent leads the rest of the world in plastic bans which reduced allowed use and manufacture of single use plastics such as plastic bags and food serving tools.
See also
African Environment (bulletin)
Africover (UN project)
AFR100
Environmental issues in the Niger Delta
Movement for the Survival of the Ogoni People
Desertification in Africa
Further reading
Globalization and Environmental Conflict in Africa
Environmental Conflict in Africa
Environmental impacts and causes of conflict in the Horn of Africa: A review
References
Hillstrom, Kevin, and Laurie Collier Hillstrom. The Worlds environments. a continental overview of environmental issues. Santa Barbara, CA, ABC-CLIO, 2003.
External links
Fleshman, Michael "Saving Africa’s forests, the ‘lungs of the world’" January 2008 United Nations |
plastic | Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive to produce, has led to its widespread use. Plastics typically are made through human industrial systems. Most modern plastics are derived from fossil fuel-based chemicals like natural gas or petroleum; however, recent industrial methods use variants made from renewable materials, such as corn or cotton derivatives.9.2 billion tonnes of plastic are estimated to have been made between 1950 and 2017. More than half this plastic has been produced since 2004. In 2020, 400 million tonnes of plastic were produced. If global trends on plastic demand continue, it is estimated that by 2050 annual global plastic production will reach over 1.1 billion tonnes.
The success and dominance of plastics starting in the early 20th century has caused widespread environmental problems, due to their slow decomposition rate in natural ecosystems. Most plastic produced has not been reused, or is incapable of reuse, either being captured in landfills or persisting in the environment as plastic pollution. Plastic pollution can be found in all the world's major water bodies, for example, creating garbage patches in all of the world's oceans and contaminating terrestrial ecosystems. Of all the plastic discarded so far, some 14% has been incinerated and less than 10% has been recycled.In developed economies, about a third of plastic is used in packaging and roughly the same in buildings in applications such as piping, plumbing or vinyl siding. Other uses include automobiles (up to 20% plastic), furniture, and toys. In the developing world, the applications of plastic may differ; 42% of India's consumption is used in packaging. In the medical field, polymer implants and other medical devices are derived at least partially from plastic. Worldwide, about 50 kg of plastic is produced annually per person, with production doubling every ten years.
The world's first fully synthetic plastic was Bakelite, invented in New York in 1907, by Leo Baekeland, who coined the term "plastics". Dozens of different types of plastics are produced today, such as polyethylene, which is widely used in product packaging, and polyvinyl chloride (PVC), used in construction and pipes because of its strength and durability. Many chemists have contributed to the materials science of plastics, including Nobel laureate Hermann Staudinger, who has been called "the father of polymer chemistry," and Herman Mark, known as "the father of polymer physics".
Etymology
The word plastic derives from the Greek πλαστικός (plastikos) meaning "capable of being shaped or molded," and in turn from πλαστός (plastos) meaning "molded." As a noun the word most commonly refers to the solid products of petrochemical-derived manufacturing.The noun plasticity refers specifically here to the deformability of the materials used in the manufacture of plastics. Plasticity allows molding, extrusion or compression into a variety of shapes: films, fibers, plates, tubes, bottles and boxes, among many others. Plasticity also has a technical definition in materials science outside the scope of this article referring to the non-reversible change in form of solid substances.
Structure
Most plastics contain organic polymers. The vast majority of these polymers are formed from chains of carbon atoms, with or without the attachment of oxygen, nitrogen or sulfur atoms. These chains comprise many repeating units formed from monomers. Each polymer chain consists of several thousand repeating units. The backbone is the part of the chain that is on the main path, linking together a large number of repeat units. To customize the properties of a plastic, different molecular groups called side chains hang from this backbone; they are usually hung from the monomers before the monomers themselves are linked together to form the polymer chain. The structure of these side chains influences the properties of the polymer.
Properties and classifications
Plastics are usually classified by the chemical structure of the polymer's backbone and side chains. Important groups classified in this way include the acrylics, polyesters, silicones, polyurethanes, and halogenated plastics. Plastics can be classified by the chemical process used in their synthesis, such as condensation, polyaddition, and cross-linking. They can also be classified by their physical properties, including hardness, density, tensile strength, thermal resistance, and glass transition temperature. Plastics can additionally be classified by their resistance and reactions to various substances and processes, such as exposure to organic solvents, oxidation, and ionizing radiation. Other classifications of plastics are based on qualities relevant to manufacturing or product design for a particular purpose. Examples include thermoplastics, thermosets, conductive polymers, biodegradable plastics, engineering plastics and elastomers.
Thermoplastics and thermosetting polymers
One important classification of plastics is the degree to which the chemical processes used to make them are reversible or not.
Thermoplastics do not undergo chemical change in their composition when heated and thus can be molded repeatedly. Examples include polyethylene (PE), polypropylene (PP), polystyrene (PS), and polyvinyl chloride (PVC).Thermosets, or thermosetting polymers, can melt and take shape only once: after they have solidified, they stay solid. If reheated, thermosets decompose rather than melt. In the thermosetting process, an irreversible chemical reaction occurs. The vulcanization of rubber is an example of this process. Before heating in the presence of sulfur, natural rubber (polyisoprene) is a sticky, slightly runny material; after vulcanization, the product is dry and rigid.
Amorphous plastics and crystalline plastics
Many plastics are completely amorphous (without a highly ordered molecular structure), including thermosets, polystyrene, and methyl methacrylate (PMMA). Crystalline plastics exhibit a pattern of more regularly spaced atoms, such as high-density polyethylene (HDPE), polybutylene terephthalate (PBT), and polyether ether ketone (PEEK). However, some plastics are partially amorphous and partially crystalline in molecular structure, giving them both a melting point and one or more glass transitions (the temperature above which the extent of localized molecular flexibility is substantially increased). These so-called semi-crystalline plastics include polyethylene, polypropylene, polyvinyl chloride, polyamides (nylons), polyesters and some polyurethanes.
Conductive polymers
Intrinsically Conducting Polymers (ICP) are organic polymers that conduct electricity. While a conductivity of up to 80 kS/cm in stretch-oriented polyacetylene, has been achieved, it does not approach that of most metals. For example, copper has a conductivity of several hundred kS/cm.
Biodegradable plastics and bioplastics
Biodegradable plastics
Biodegradable plastics are plastics that degrade (break down) upon exposure to sunlight or ultra-violet radiation; water or dampness; bacteria; enzymes; or wind abrasion. Attack by insects, such as waxworms and mealworms, can also be considered as forms of biodegradation. Aerobic degradation requires that the plastic be exposed at the surface, whereas anaerobic degradation would be effective in landfill or composting systems. Some companies produce biodegradable additives to enhance biodegradation. Although starch powder can be added as a filler to allow some plastics to degrade more easily, such treatment does not lead to complete breakdown. Some researchers have genetically engineered bacteria to synthesize completely biodegradable plastics, such as polyhydroxy butyrate (PHB); however, these are relatively costly as of 2021.
Bioplastics
While most plastics are produced from petrochemicals, bioplastics are made substantially from renewable plant materials like cellulose and starch. Due both to the finite limits of fossil fuel reserves and to rising levels of greenhouse gases caused primarily by the burning of those fuels, the development of bioplastics is a growing field. Global production capacity for bio-based plastics is estimated at 327,000 tonnes per year. In contrast, global production of polyethylene (PE) and polypropylene (PP), the world's leading petrochemical-derived polyolefins, was estimated at over 150 million tonnes in 2015.
Plastic industry
The plastic industry includes the global production, compounding, conversion and sale of plastic products. Although the Middle East and Russia produce most of the required petrochemical raw materials; the production of plastic is concentrated in the global East and West. The plastic industry comprises a huge number of companies and can be divided into several sectors:
Production
Between 1950 and 2017, 9.2 billion tonnes of plastic are estimated to have been made, with more than half this having been produced since 2004. Since the birth of the plastic industry in the 1950s, global production has increased enormously, reaching 400 million tonnes a year in 2021; this is up from 381 million metric tonnes in 2015 (excluding additives). From the 1950s, rapid growth occurred in the use of plastics for packaging, in building and construction, and in other sectors. If global trends on plastic demand continue, it is estimated that by 2050 annual global plastic production will exceed 1.1 billion tonnes annually.
Plastics are produced in chemical plants by the polymerization of their starting materials (monomers); which are almost always petrochemical in nature. Such facilities are normally large and are visually similar to oil refineries, with sprawling pipework running throughout. The large size of these plants allows them to exploit economies of scale. Despite this, plastic production is not particularly monopolized, with about 100 companies accounting for 90% of global production. This includes a mixture of private and state-owned enterprises. Roughly half of all production takes place in East Asia, with China being the largest single producer. Major international producers include:
Historically, Europe and North America have dominated global plastics production. However, since 2010 Asia has emerged as a significant producer, with China accounting for 31% of total plastic resin production in 2020. Regional differences in the volume of plastics production are driven by user demand, the price of fossil fuel feedstocks, and investments made in the petrochemical industry. For example, since 2010 over US$200 billion has been invested in the United States in new plastic and chemical plants, stimulated by the low cost of raw materials. In the European Union (EU), too, heavy investments have been made in the plastics industry, which employs over 1.6 million people with a turnover of more than 360 billion euros per year. In China in 2016 there were over 15,000 plastic manufacturing companies, generating more than US$366 billion in revenue.In 2017, the global plastics market was dominated by thermoplastics– polymers that can be melted and recast. Thermoplastics include polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and synthetic fibres, which together represent 86% of all plastics.
Compounding
Plastic is not sold as a pure unadulterated substance, but is instead mixed with various chemicals and other materials, which are collectively known as additives. These are added during the compounding stage and include substances such as stabilizers, plasticizers and dyes, which are intended to improve the lifespan, workability or appearance of the final item. In some cases, this can involve mixing different types of plastic together to form a polymer blend, such as high impact polystyrene. Large companies may do their own compounding prior to production, but some producers have it done by a third party. Companies that specialize in this work are known as Compounders.
The compounding of thermosetting plastic is relatively straightforward; as it remains liquid until it is cured into its final form. For thermosoftening materials, which are used to make the majority of products, it is necessary to melt the plastic in order to mix-in the additives. This involves heating it to anywhere between 150–320 °C (300–610 °F). Molten plastic is viscous and exhibits laminar flow, leading to poor mixing. Compounding is therefore done using extrusion equipment, which is able to supply the necessary heat and mixing to give a properly dispersed product.
The concentrations of most additives are usually quite low, however high levels can be added to create Masterbatch products. The additives in these are concentrated but still properly dispersed in the host resin. Masterbatch granules can be mixed with cheaper bulk polymer and will release their additives during processing to give a homogeneous final product. This can be cheaper than working with a fully compounded material and is particularly common for the introduction of colour.
Converting
Companies that produce finished goods are known as converters (sometimes processors). The vast majority of plastics produced worldwide are thermosoftening and must be heated until molten in order to be molded. Various sorts of extrusion equipment exist which can then form the plastic into almost any shape.
Film blowing - Plastic films (carrier bags, sheeting)
Blow molding - Small thin-walled hollow objects in large quantities (drinks bottles, toys)
Rotational molding - Large thick-walled hollow objects (IBC tanks)
Injection molding - Solid objects (phone cases, keyboards)
Spinning - Produces fibers (nylon, spandex etc.)For thermosetting materials the process is slightly different, as the plastics are liquid to begin with and but must be cured to give solid products, but much of the equipment is broadly similar.
The most commonly produced plastic consumer products include packaging made from LDPE (e.g. bags, containers, food packaging film), containers made from HDPE (e.g. milk bottles, shampoo bottles, ice cream tubs), and PET (e.g. bottles for water and other drinks). Together these products account for around 36% of plastics use in the world. Most of them (e.g. disposable cups, plates, cutlery, takeaway containers, carrier bags) are used for only a short period, many for less than a day. The use of plastics in building and construction, textiles, transportation and electrical equipment also accounts for a substantial share of the plastics market. Plastic items used for such purposes generally have longer life spans. They may be in use for periods ranging from around five years (e.g. textiles and electrical equipment) to more than 20 years (e.g. construction materials, industrial machinery).
Plastic consumption differs among countries and communities, with some form of plastic having made its way into most people's lives. North America (i.e. the North American Free Trade Agreement or NAFTA region) accounts for 21% of global plastic consumption, closely followed by China (20%) and Western Europe (18%). In North America and Europe there is high per capita plastic consumption (94 kg and 85 kg/capita/year, respectively). In China there is lower per capita consumption (58 kg/capita/year), but high consumption nationally because of its large population.
Types of plastics
Commodity plastics
Around 70% of global production is concentrated in six major polymer types, the so-called commodity plastics. Unlike most other plastics these can often be identified by their resin identification code (RIC):
Polyethylene terephthalate (PET or PETE)
High-density polyethylene (HDPE or PE-HD)
Polyvinyl chloride (PVC or V)
Low-density polyethylene (LDPE or PE-LD),
Polypropylene (PP)
Polystyrene (PS)Polyurethanes (PUR) and PP&A fibres are often also included as major commodity classes, although they usually lack RICs, as they are chemically quite diverse groups. These materials are inexpensive, versatile and easy to work with, making them the preferred choice for the mass production everyday objects. Their biggest single application is in packaging, with some 146 million tonnes being used this way in 2015, equivalent to 36% of global production. Due to their dominance; many of the properties and problems commonly associated with plastics, such as pollution stemming from their poor biodegradability, are ultimately attributable to commodity plastics.
A huge number of plastics exist beyond the commodity plastics, with many having exceptional properties.
Engineering plastics
Engineering plastics are more robust and are used to make products such as vehicle parts, building and construction materials, and some machine parts. In some cases they are polymer blends formed by mixing different plastics together (ABS, HIPS etc.). Engineering plastics can replace metals in vehicles, lowering their weight and improving fuel efficiency by 6–8%. Roughly 50% of the volume of modern cars is made of plastic, but this only accounts for 12–17% of the vehicle weight.
Acrylonitrile butadiene styrene (ABS): electronic equipment cases (e.g. computer monitors, printers, keyboards) and drainage pipe
High impact polystyrene (HIPS): refrigerator liners, food packaging and vending cups
Polycarbonate (PC): compact discs, eyeglasses, riot shields, security windows, traffic lights, and lenses
Polycarbonate + acrylonitrile butadiene styrene (PC + ABS): a blend of PC and ABS that creates a stronger plastic used in car interior and exterior parts, and in mobile phone bodies
Polyethylene + acrylonitrile butadiene styrene (PE + ABS): a slippery blend of PE and ABS used in low-duty dry bearings
Polymethyl methacrylate (PMMA) (acrylic): contact lenses (of the original "hard" variety), glazing (best known in this form by its various trade names around the world; e.g. Perspex, Plexiglas, and Oroglas), fluorescent-light diffusers, and rear light covers for vehicles. It also forms the basis of artistic and commercial acrylic paints, when suspended in water with the use of other agents.
Silicones (polysiloxanes): heat-resistant resins used mainly as sealants but also used for high-temperature cooking utensils and as a base resin for industrial paints
Urea-formaldehyde (UF): one of the aminoplasts used as a multi-colorable alternative to phenolics: used as a wood adhesive (for plywood, chipboard, hardboard) and electrical switch housings
High-performance plastics
High-performance plastics are usually expensive, with their use limited to specialised applications which make use of their superior properties.
Aramids: best known for their use in making body armor, this class of heat-resistant and strong synthetic fibers are also used in aerospace and military applications, includes Kevlar and Nomex, and Twaron.
Ultra-high-molecular-weight polyethylenes
Polyetheretherketone (PEEK): strong, chemical- and heat-resistant thermoplastic; its biocompatibility allows for use in medical implant applications and aerospace moldings. It is one of the most expensive commercial polymers.
Polyetherimide (PEI) (Ultem): a high-temperature, chemically stable polymer that does not crystallize
Polyimide: a high-temperature plastic used in materials such as Kapton tape
Polysulfone: high-temperature melt-processable resin used in membranes, filtration media, water heater dip tubes and other high-temperature applications
Polytetrafluoroethylene (PTFE), or Teflon: heat-resistant, low-friction coatings used in non-stick surfaces for frying pans, plumber's tape and water slides
Polyamide-imide (PAI): High-performance engineering plastic extensively used in high performance gears, switches, transmission and other automotive components, and aerospace parts.
Gallery
Applications
The largest application for plastics is as packaging materials, but they are used in a wide range of other sectors, including: construction (pipes, gutters, door and windows), textiles (stretchable fabrics, fleece), consumer goods (toys, tableware, toothbrushes), transportation (headlights, bumpers, body panels, wing mirrors), electronics (phones, computers, televisions) and as machine parts.
Additives
Additives are chemicals blended into plastics to change their performance or appearance, making it possible to alter the properties of plastics to better suit their intended applications. Additives are therefore one of the reasons why plastic is used so widely. Plastics are composed of chains of polymers. Many different chemicals are used as plastic additives. A randomly chosen plastic product generally contains around 20 additives. The identities and concentrations of additives are generally not listed on products.In the EU, over 400 additives are used in high volumes. 5500 additives were found in a global market analysis. At a minimum all plastic contains some polymer stabilisers which permit them to be melt-processed (moulded) without suffering polymer degradation. Other additives are optional and can be added as required, with loadings varying significantly between applications. The amount of additives contained in plastics varies depending on the additives’ function. For example, additives in polyvinyl chloride (PVC) can constitute up to 80% of the total volume. Pure unadulterated plastic (barefoot resin) is never sold, even by the primary producers.
Leaching
Additives may be weakly bound to the polymers or react in the polymer matrix. Although additives are blended into plastic they remain chemically distinct from it, and can gradually leach back out during normal use, when in landfills, or following improper disposal in the environment. Additives may also degrade to form other toxic molecules. Plastic fragmentation into microplastics and nanoplastics can allow chemical additives to move in the environment far from the point of use. Once released, some additives and derivatives may persist in the environment and bioaccumulate in organisms. They can have adverse effects on human health and biota. A recent review by the United States Environmental Protection Agency (US EPA) revealed that out of 3,377 chemicals potentially associated with plastic packaging and 906 likely associated with it, 68 were ranked by ECHA as "highest for human health hazards" and 68 as "highest for environmental hazards".
Recycling
As additives change the properties of plastics they have to be considered during recycling. Presently, almost all recycling is performed by simply remelting and reforming used plastic into new items. Additives present risks in recycled products, as they are difficult to remove. When plastic products are recycled, it is highly likely that the additives will be integrated into the new products. Waste plastic, even if it is all of the same polymer type, will contain varying types and amounts of additives. Mixing these together can give a material with inconsistent properties, which can be unappealing to industry. For example, mixing different coloured plastics with different plastic colorants together can produce a discoloured or brown material and for this reason plastic is usually sorted by both polymer type and color before recycling.Absence of transparency and reporting across the value chain often results in lack of knowledge concerning the chemical profile of the final products. For example, products containing brominated flame retardants have been incorporated into new plastic products. Flame retardants are a group of chemicals used in electronic and electrical equipment, textiles, furniture and construction materials which should not be present in food packaging or child care products. A recent study found brominated dioxins as unintentional contaminants in toys made from recycled plastic electronic waste that contained brominated flame retardants. Brominated dioxins have been found to exhibit toxicity similar to that of chlorinated dioxins. They can have negative developmental effects and negative effects on the nervous system and interfere with mechanisms of the endocrine system.
Health effects
Many of the controversies associated with plastics actually relate to their additives, as some compounds can be persistent, bioaccumulating and potentially harmful. The now banned flame retardants OctaBDE and PentaBDE are an example of this, while the health effects of phthalates are an ongoing area of public concern. Additives can also be problematic if waste is burned, especially when burning is uncontrolled or takes place in low- technology incinerators, as is common in many developing countries. Incomplete combustion can cause emissions of hazardous substances such as acid gases and ash which can contain persistent organic pollutants (POPs) such as dioxins.A number of additives identified as hazardous to humans and/or the environment are regulated internationally. The Stockholm Convention on Persistent Organic Pollutants (POPs) is a global treaty to protect human health and the environment from chemicals that remain intact in the environment for long periods, become widely distributed geographically, accumulate in the fatty tissue of humans and wildlife, and have harmful impacts on human health or on the environment.Other additives proven to be harmful such as cadmium, chromium, lead and mercury (regulated under the Minamata Convention on Mercury), which have previously been used in plastic production, are banned in many jurisdictions. However they are still routinely found in some plastic packaging including food packaging. The use of the additive bisphenol A (BPA) in plastic baby bottles is banned in many parts of the world, but is not restricted in some low-income countries.In 2023, plasticosis, a new disease caused solely by plastics, was discovered in seabirds. The birds identified as having the disease have scarred digestive tracts from ingesting plastic waste. ”When birds ingest small pieces of plastic, they found, it inflames the digestive tract. Over time, the persistent inflammation causes tissues to become scarred and disfigured, affecting digestion, growth and survival.”
Types of additive
Toxicity
Pure plastics have low toxicity due to their insolubility in water, and because they have a large molecular weight, they are biochemically inert. Plastic products contain a variety of additives, however, some of which can be toxic. For example, plasticizers like adipates and phthalates are often added to brittle plastics like PVC to make them pliable enough for use in food packaging, toys, and many other items. Traces of these compounds can leach out of the product. Owing to concerns over the effects of such leachates, the EU has restricted the use of DEHP (di-2-ethylhexyl phthalate) and other phthalates in some applications, and the US has limited the use of DEHP, DPB, BBP, DINP, DIDP, and DnOP in children's toys and child-care articles through the Consumer Product Safety Improvement Act. Some compounds leaching from polystyrene food containers have been proposed to interfere with hormone functions and are suspected human carcinogens (cancer-causing substances). Other chemicals of potential concern include alkylphenols.While a finished plastic may be non-toxic, the monomers used in the manufacture of its parent polymers may be toxic. In some cases, small amounts of those chemicals can remain trapped in the product unless suitable processing is employed. For example, the World Health Organization's International Agency for Research on Cancer (IARC) has recognized vinyl chloride, the precursor to PVC, as a human carcinogen.
Bisphenol A (BPA)
Some plastic products degrade to chemicals with estrogenic activity. The primary building block of polycarbonates, bisphenol A (BPA), is an estrogen-like endocrine disruptor that may leach into food. Research in Environmental Health Perspectives finds that BPA leached from the lining of tin cans, dental sealants and polycarbonate bottles can increase the body weight of lab animals' offspring. A more recent animal study suggests that even low-level exposure to BPA results in insulin resistance, which can lead to inflammation and heart disease. As of January 2010, the Los Angeles Times reported that the US Food and Drug Administration (FDA) is spending $30 million to investigate indications of BPA's link to cancer. Bis(2-ethylhexyl) adipate, present in plastic wrap based on PVC, is also of concern, as are the volatile organic compounds present in new car smell. The EU has a permanent ban on the use of phthalates in toys. In 2009, the US government banned certain types of phthalates commonly used in plastic.
Environmental effects
Because the chemical structure of most plastics renders them durable, they are resistant to many natural degradation processes. Much of this material may persist for centuries or longer, given the demonstrated persistence of structurally similar natural materials such as amber.
There are differing estimates of how much plastic waste has been produced in the last century. By one estimate, one billion tons of plastic waste have been discarded since the 1950s. Others estimate a cumulative human production of 8.3 billion tons of plastic, of which 6.3 billion tons is waste, with only 9% getting recycled.It is estimated that this waste is made up of 81% polymer resin, 13% polymer fibres and 32% additives. In 2018 more than 343 million tonnes of plastic waste were generated, 90% of which was composed of post-consumer plastic waste (industrial, agricultural, commercial and municipal plastic waste). The rest was pre-consumer waste from resin production and manufacturing of plastic products (e.g. materials rejected due to unsuitable colour, hardness, or processing characteristics).The Ocean Conservancy reported that China, Indonesia, Philippines, Thailand, and Vietnam dump more plastic into the sea than all other countries combined. The rivers Yangtze, Indus, Yellow, Hai, Nile, Ganges, Pearl, Amur, Niger, and Mekong "transport 88% to 95% of the global [plastics] load into the sea."The presence of plastics, particularly microplastics, within the food chain is increasing. In the 1960s microplastics were observed in the guts of seabirds, and since then have been found in increasing concentrations. The long-term effects of plastics in the food chain are poorly understood. In 2009 it was estimated that 10% of modern waste was plastic, although estimates vary according to region. Meanwhile, 50% to 80% of debris in marine areas is plastic. Plastic is often used in agriculture. There is more plastic in the soil than in the oceans. The presence of plastic in the environment hurts ecosystems and human health.Research on the environmental impacts has typically focused on the disposal phase. However, the production of plastics is also responsible for substantial environmental, health and socioeconomic impacts.Prior to the Montreal Protocol, CFCs had been commonly used in the manufacture of the plastic polystyrene, the production of which had contributed to depletion of the ozone layer.
Efforts to minimize environmental impact of plastics may include lowering of plastics production and use, waste- and recycling-policies, and the proactive development and deployment of alternatives to plastics such as for sustainable packaging.
Microplastics
Decomposition of plastics
Plastics degrade by a variety of processes, the most significant of which is usually photo-oxidation. Their chemical structure determines their fate. Polymers' marine degradation takes much longer as a result of the saline environment and cooling effect of the sea, contributing to the persistence of plastic debris in certain environments. Recent studies have shown, however, that plastics in the ocean decompose faster than had been previously thought, due to exposure to the sun, rain, and other environmental conditions, resulting in the release of toxic chemicals such as bisphenol A. However, due to the increased volume of plastics in the ocean, decomposition has slowed down. The Marine Conservancy has predicted the decomposition rates of several plastic products: It is estimated that a foam plastic cup will take 50 years, a plastic beverage holder will take 400 years, a disposable diaper will take 450 years, and fishing line will take 600 years to degrade.Microbial species capable of degrading plastics are known to science, some of which are potentially useful for disposal of certain classes of plastic waste.
In 1975, a team of Japanese scientists studying ponds containing waste water from a nylon factory discovered a strain of Flavobacterium that digests certain byproducts of nylon 6 manufacture, such as the linear dimer of 6-aminohexanoate. Nylon 4 (polybutyrolactam) can be degraded by the ND-10 and ND-11 strands of Pseudomonas sp. found in sludge, resulting in GABA (γ-aminobutyric acid) as a byproduct.
Several species of soil fungi can consume polyurethane, including two species of the Ecuadorian fungus Pestalotiopsis. They can consume polyurethane both aerobically and anaerobically (such as at the bottom of landfills).
Methanogenic microbial consortia degrade styrene, using it as a carbon source. Pseudomonas putida can convert styrene oil into various biodegradable plastic|biodegradable polyhydroxyalkanoates.
Microbial communities isolated from soil samples mixed with starch have been shown to be capable of degrading polypropylene.
The fungus Aspergillus fumigatus effectively degrades plasticized PVC.: 45–46 Phanerochaete chrysosporium has been grown on PVC in a mineral salt agar.: 76 </ref> P. chrysosporium, Lentinus tigrinus, A. niger, and A. sydowii can also effectively degrade PVC.: 122
Phenol-formaldehyde, commonly known as Bakelite, is degraded by the white rot fungus P. chrysosporium.
Acinetobacter has been found to partially degrade low-molecular-weight polyethylene oligomers. When used in combination, Pseudomonas fluorescens and Sphingomonas can degrade over 40% of the weight of plastic bags in less than three months. The thermophilic bacterium Brevibacillus borstelensis (strain 707) was isolated from a soil sample and found capable of using low-density polyethylene as a sole carbon source when incubated at 50 °C. Pre-exposure of the plastic to ultraviolet radiation broke chemical bonds and aided biodegradation; the longer the period of UV exposure, the greater the promotion of the degradation.
Hazardous molds have been found aboard space stations that degrade rubber into a digestible form.
Several species of yeasts, bacteria, algae and lichens have been found growing on synthetic polymer artifacts in museums and at archaeological sites.
In the plastic-polluted waters of the Sargasso Sea, bacteria have been found that consume various types of plastic; however, it is unknown to what extent these bacteria effectively clean up poisons rather than simply release them into the marine microbial ecosystem.
Plastic-eating microbes also have been found in landfills.
Nocardia can degrade PET with an esterase enzyme.
The fungus Geotrichum candidum, found in Belize, has been found to consume the polycarbonate plastic found in CDs.
Futuro houses are made of fiberglass-reinforced polyesters, polyester-polyurethane, and PMMA. One such house was found to be harmfully degraded by Cyanobacteria and Archaea.
Recycling
Pyrolysis
By heating to above 500 °C in the absence of oxygen (pyrolysis), plastics can be broken down into simpler hydrocarbons. These can be reused as starting materials for new plastics. They can also be used as fuels.
Climate change
According to the OECD, plastic contributed greenhouse gases in the equivalent of 1.8 billion tons of carbon dioxide (CO2) to the atmosphere in 2019, 3.4% of global emissions. They say that by 2060, plastic could emit 4.3 billion tons of greenhouse gas emissions a year.
The effect of plastics on global warming is mixed. Plastics are generally made from petroleum, thus the production of plastics creates further emissions. However, due to the lightness and durability of plastic versus glass or metal, plastic may lower energy consumption. For example, packaging beverages in PET plastic rather than glass or metal is estimated to save 52% in transportation energy.
Production of plastics
Production of plastics from crude oil requires 7.9 to 13.7 kWh/lb (taking into account the average efficiency of US utility stations of 35%). Producing silicon and semiconductors for modern electronic equipment is even more energy consuming: 29.2 to 29.8 kWh/lb for silicon, and about 381 kWh/lb for semiconductors. This is much higher than the energy needed to produce many other materials. For example, to produce iron (from iron ore) requires 2.5-3.2 kWh/lb of energy; glass (from sand, etc.) 2.3–4.4 kWh/lb; steel (from iron) 2.5–6.4 kWh/lb; and paper (from timber) 3.2–6.4 kWh/lb.
Incineration of plastics
Quickly burning plastics at very high temperatures breaks down many toxic components, such as dioxins and furans. This approach is widely used in municipal solid waste incineration. Municipal solid waste incinerators also normally treat the flue gas to decrease pollutants further, which is needed because uncontrolled incineration of plastic produces carcinogenic polychlorinated dibenzo-p-dioxins. Open-air burning of plastic occurs at lower temperatures and normally releases such toxic fumes.
In the European Union, municipal waste incineration is regulated by the Industrial Emissions Directive, which stipulates a minimum temperature of 850 °C for at least two seconds.
History
The development of plastics has evolved from the use of naturally plastic materials (e.g., gums and shellac) to the use of the chemical modification of those materials (e.g., natural rubber, cellulose, collagen, and milk proteins), and finally to completely synthetic plastics (e.g., bakelite, epoxy, and PVC). Early plastics were bio-derived materials such as egg and blood proteins, which are organic polymers. In around 1600 BC, Mesoamericans used natural rubber for balls, bands, and figurines. Treated cattle horns were used as windows for lanterns in the Middle Ages. Materials that mimicked the properties of horns were developed by treating milk proteins with lye. In the nineteenth century, as chemistry developed during the Industrial Revolution, many materials were reported. The development of plastics accelerated with Charles Goodyear's 1839 discovery of vulcanization to harden natural rubber.
Parkesine, invented by Alexander Parkes in 1855 and patented the following year, is considered the first man-made plastic. It was manufactured from cellulose (the major component of plant cell walls) treated with nitric acid as a solvent. The output of the process (commonly known as cellulose nitrate or pyroxilin) could be dissolved in alcohol and hardened into a transparent and elastic material that could be molded when heated. By incorporating pigments into the product, it could be made to resemble ivory. Parkesine was unveiled at the 1862 International Exhibition in London and garnered for Parkes the bronze medal.In 1893, French chemist Auguste Trillat discovered the means to insolubilize casein (milk proteins) by immersion in formaldehyde, producing material marketed as galalith. In 1897, mass-printing press owner Wilhelm Krische of Hanover, Germany, was commissioned to develop an alternative to blackboards. The resultant horn-like plastic made from casein was developed in cooperation with the Austrian chemist (Friedrich) Adolph Spitteler (1846–1940). Although unsuitable for the intended purpose, other uses would be discovered.The world's first fully synthetic plastic was Bakelite, invented in New York in 1907 by Leo Baekeland, who coined the term plastics. Many chemists have contributed to the materials science of plastics, including Nobel laureate Hermann Staudinger, who has been called "the father of polymer chemistry," and Herman Mark, known as "the father of polymer physics."After World War I, improvements in chemistry led to an explosion of new forms of plastics, with mass production beginning in the 1940s and 1950s. Among the earliest examples in the wave of new polymers were polystyrene (first produced by BASF in the 1930s) and polyvinyl chloride (first created in 1872 but commercially produced in the late 1920s). In 1923, Durite Plastics, Inc., was the first manufacturer of phenol-furfural resins. In 1933, polyethylene was discovered by Imperial Chemical Industries (ICI) researchers Reginald Gibson and Eric Fawcett.The discovery of polyethylene terephthalate is credited to employees of the Calico Printers' Association in the UK in 1941; it was licensed to DuPont for the US and ICI otherwise, and as one of the few plastics appropriate as a replacement for glass in many circumstances, resulting in widespread use for bottles in Europe. In 1954 polypropylene was discovered by Giulio Natta and began to be manufactured in 1957. Also in 1954 expanded polystyrene (used for building insulation, packaging, and cups) was invented by Dow Chemical.
Policy
Work is currently underway to develop a global treaty on plastic pollution. On March 2, 2022 UN Member States voted at the resumed fifth UN Environment Assembly (UNEA-5.2) to establish an Intergovernmental Negotiating Committee (INC) with the mandate of advancing a legally-binding international agreement on plastics. The resolution is entitled “End plastic pollution: Towards an international legally binding instrument.” The mandate specifies that the INC must begin its work by the end of 2022 with the goal of "completing a draft global legally binding agreement by the end of 2024."
See also
References
Substantial parts of this text originated from An Introduction to Plastics v1.0 by Greg Goebel (March 1, 2001), which is in the public domain.
Sources
This article incorporates text from a free content work. Licensed under Cc BY-SA 3.0 IGO (license statement/permission). Text taken from Drowning in Plastics – Marine Litter and Plastic Waste Vital Graphics, United Nations Environment Programme.
External links
"J. Harry Dubois Collection on the History of Plastics, ca. 1900–1975". Archives Center, National Museum of American History, Smithsonian Institution. Archived from the original on February 12, 2006.
"Material Properties of Plastics – Mechanical, Thermal & Electrical Properties". Plastics International. Archived from the original on March 24, 2017.
"Plastics Historical Society".
"History of plastics, Society of the Plastics Industry". plasticsindustry.org. Archived from the original on July 6, 2009.
Knight L (May 17, 2014). "A brief history of plastics, natural and synthetic". BBC Magazine.
"Timeline of important milestone of plastic injection moulding and plastics". Tangram Technology Ltd. June 27, 2014. |
deforestation in central america | Central American countries have experienced cycles of deforestation and reforestation since the decline of Maya civilization, influenced by many factors such as population growth, agriculture, narcotic distribution and illegal practices. From 2001 to 2010, 5,376 square kilometres (2,076 sq mi) of forest were lost in the region. In 2010 Belize had 63% of remaining forest cover, Costa Rica 46%, Panama 45%, Honduras 41%, Guatemala 37%, Nicaragua 29%, and El Salvador 21%. Most of the loss occurred in the moist forest biome, with 12,201 square kilometers. Woody vegetation loss was partially set off by a plus in the coniferous forest biome with 4,730 km2, and at 2,054 km2. Mangroves and deserts contributed only 1% to the loss in forest vegetation. The bulk of the deforestation was located at the Caribbean slopes of Nicaragua with a minus of 8,574 square kilometers of forest lost in the period from 2001 to 2010. The most significant regrowth of 3,050 km2 of forest was seen in the coniferous woody vegetation of Honduras.
History
Deforestation in Central America is one of the environmental problems that is linked to the settlement of agrarian frontier areas by land-seeking farmers and commercial agrarians, who facilitated the conversion of forest land to pasture, more expansion of cash crop like coffee, banana, logging activities, pasture and fuelwoods among other urbanization activities. The central American region experienced the highest rate of deforestation in the world between the 1960s to 1970s. The so-called "hamburger connection" has been the leading cause of deforestation in the region, with more settlers concentrating on clearing the land for cattle ranching and commercialization activities. Moreover, various research statistics provide that approximately 949,150 acres of forest, in which equals to 384,107.377 ha of forest, were lost each year between 1990 and 2010 in the United States. According to Food and Agriculture Organization (FAO), central America lost an average of 285,000 ha of forest annually between 2000 and 2005. One of the most troubling observations made by the research team in the report is that in the past 15 years, the three largest remaining forest blocks in Central America have been decreased in size by more than 23 percent.Fifteenth century
By the fifteenth century, intensive Mayan agriculture had significantly thinned the forests, but had not completely decimated them. Before Europeans arrived, forests covered 500,000 square kilometers – approximately 90% of the region. The arrival of the Spaniards caused a sharp decrease in population resulting from the highly contagious diseases introduced by the conquistadores. This reduction in human pressure gave much of the land that had been cleared for cultivation time to recover. Eventually, the forcing of "Europe's money economy on Latin America" created the demand for the exportation of primary products, which introduced the need for large amounts of cleared agricultural land to produce those products. While the cultivation of some exports such as indigo and cochineal dye worked harmoniously with the surrounding indigenous vegetation, other crops such as sugar required clear-cutting of land and mass quantities of firewood to fuel the refining process, which spurred rapid, destructive deforestation.Eighteenth century to twentieth century
From the eighteenth to the twentieth century, mahogany exports for furniture became the major cause of forest exhaustion. The region experienced economic change in the nineteenth century through a "fuller integration in the world capitalist system". This, combined with conflict with Spain, put an even greater emphasis on plantation cropping. Throughout the nineteenth and twentieth centuries, Europe and North America have become the chief importers of the region's coffee and banana crops, thus putting increasing demand on the land to produce large quantities of these cash crops and perpetuating the clearing of more forest in an attempt to acquire more exploitable farmland.Most recent
Most recently, as of the 1960s, cattle ranching has become the primary reason for land clearing. The lean grass-fed cattle produced by Central American ranches (as opposed to grain-fed cattle raised elsewhere in America) was perfectly suited for North American fast-food restaurants and this seemingly bottomless market has created the so-called "hamburger connection" which links "consumer lifestyles in North America with deforestation in Central America". This demonstrates how the developed world has had an indirect influence on the environment and landscape of developing countries.
In Central America, the deforestation rate also threatens the survival of iconic species such as jaguars, tapirs, and scarlet macaws. The white-lipped peccary, an important keystone species for Central American forests, is so endangered that it could soon become extinct in the area. White-lipped peccaries migrate in large herds in search of fruit and other food in large forest tracts, acting both as an indicator of forest health and connectivity and as a key prey species for jaguars.
Logging
Logging is another factor that increases deforestation in multiple ways. Entry to the forest fringes by roads increases resource misuse, such as illegal logging and bush meat hunting. Though regulated logging is far less detrimental to the forest, uncontrolled logging is prevalent in developing countries due to the demand for timber to house growing populations, and the poor economic situation of those making their living from and in the forest itself. Furthermore, all forms of logging necessitate the building of roads, which generates easy access to those seeking new land to clear for agriculture. The use of wood as the primary fuel for cooking and heating is compounded by developing countries inability to pay high oil prices. As a result, the demand for firewood is "one of the most commonly cited causes of deforestation".In Guatemala, because of agriculture and timber industries, 98 percent of the original rainforest was destroyed in this region. Huge areas of forest are, in most situations, lost only to destroy a few highly valued trees. There are permanent effects of the impact of this devastation: heavy machinery compacts soil and renders it more vulnerable to erosion.
Narco-deforestation
The pervasion of the illegal drug trade throughout the region decimates forestland and is primarily fueled by demand for narcotics in North America. Honduras, Guatemala, and Nicaragua have suffered from some of the highest rates of deforestation in the world since 2000 and in 2005 these rates of forest loss began to accelerate, coinciding with an influx of drug trafficking activity. Following the election of Felipe Calderón in 2006 and the ignition of the Mexican Drug War, many Mexican drug trafficking organizations (DTO) relocated their operations southward enticed by the porous borders, corruption, and weak public institutions characteristic of Guatemala and Honduras. The sparsely populated forested highlands in these countries harbor little state presence and offer perfect refuge for DTO's looking to evade interdiction.Avocado trade in Mexico
Mexico's multi-billion dollar avocado industry has become a prime target for DTOs, which seize farms and clear protected woodlands to plant avocado groves. Cartel members have been known to show up unannounced, armed with automatic weapons and chainsaws. When locals protest that the area is protected from logging, they are held at gunpoint and ordered to keep quiet. The deforestation is not always obvious — loggers covertly trim back only the forest canopy, planting avocado trees in a hidden layer beneath. This practice increases greenhouse gas emissions as forests are thinned to make way for more orchards.Illegal cattle ranching
One of the principal causes of deforestation has been determined to be large-scale illegal cattle ranching, much of it taking place within protected areas and indigenous territories. Often, this criminal activity is related to drug trafficking and money laundering. Corruption makes poor forest inhabitants less likely to formally engage in conservation, whether forced or voluntary. One interviewee clarified common knowledge among forest communities: the grossest environmental violations are committed by wealthy, politically-connected, narco-enriched elites.The increased trafficking of cocaine through Guatemala and Honduras is correlated with a rise in the region's rate of forest loss. In the forests of eastern Honduras, the amount of newly detected deforestation is greater than 5.29 hectares while in Guatemala's Petén, extensive amounts of forest loss was matched by an unprecedented number of cocaine flows through the area. According to Dr. Kendra McSweeney from Ohio State University, the baseline rate of deforestation in the region of about 20 km2 per year has accelerated to 60 km2 per year under the narco-effect – a deforestation rate of around 10%. In 2011, the Río Plátano Biosphere Reserve in Honduras was designated as a "World Heritage in Danger" by UNESCO due to the striking degree of deforestation at the hands of narco-traffickers.Mechanisms linked with narcotics and forest loss
Three interrelated mechanisms explain the trend of forest loss following the establishment of a drug transit hub. The first is the clearing of forestland for the construction of clandestine roads and airstrips used by vehicles transporting narcotics, pesticides, and fertilizers. Second, the influx of vast amounts of cash and weapons into areas that are already weakly governed only intensifies the preexisting pressures on forests there. The introduction of narco-capital into these frontiers encourages landowners and other actors in the region to participate in the drug trade, which often leaves indigenous communities bereft of their land and livelihoods. Finally, the large profits to drug traffickers incentivize DTOs to convert forest to agriculture to launder these profits. "Improving" remote land not only allows narco-traffickers to inconspicuously convert their assets into private earnings but also legitimizes the DTO's presence in the area. Though conversion of land within protected forest area and indigenous communities is illegal, traffickers have the political influence necessary to guarantee impunity. As for the indigenous communities marginalized by increased drug trafficking activity, they are powerless in the face of the narcos' violence and corruption; conservation groups in the region are threatened and state prosecutors are bribed to turn a blind eye to illegal "narco-zones." According to Dr. Kendra McSweeney from Ohio State University, the baseline rate of deforestation in the region of about 20 km2 per year has accelerated to 60 km2. McSweeney cites Honduras' world's highest homicide rate, explaining that conservationists are essentially too scared to express their opinions and vocalize for the cause, as they could have potential consequences and threats to silence them. International environmental groups have pointed to the death of Jairo Mora Sandoval as an example of this sort of silencing of conservationists by narco-traffickers, indicating that the ecological and social effects of the drug trade have been felt throughout Central America.
Population growth
As the countries of this region continue to develop, the sheer number of people, as well as trade with developed countries, puts pressure on natural resources by creating many of the situations previously discussed, such as the necessary clearing of land for agriculture and housing. Another study shows that population growth and technological development in Central America (the Mesoamerican biodiversity hotspot) does in fact have a direct impact on the rate of deforestation.Other regions in central America experienced increased population growth, such as Petén, owing to the discovery of oil and by the deportation procedure of political refugees from the Guatemalan Civil War. The increased rates of urbanization and population increase resulted in increased rates of deforestation. According to recent statistics, the population of Central America doubles within a range of 15 years, from 2.1 million in 2000 to 4.2 million in 2015.
Global impact
Losing Central America's forests does not just threaten the region; it has global implications. Forests help absorb and store carbon dioxide that heats the planet. But whenever they are destroyed, they increase the rate of carbon emissions to the environment hence heating the planet for the interest of a few land-settler, business people, and drug traffickers. Subsequently, the following carbon emissions that are a result of the deforestation processes are reportedly linked and associated with hindering the atmosphere and can play a factor in then warming the planet. In which, this correlates to playing a role in the increase of carbon emissions in the atmosphere, a reported amount of 10-20% accounted from deforestation processes. Moreover, drug traffickers in the region increase the rate of migration or relocation for the locals when they are developing the routes in the regions. This increases the rates of poverty and political instabilities in the region. On the other side, the development of these drug traffickers in the region increases the availability and use of drugs in the community hence potentially destroying youths, families, and productivity in the community. The eradication of the habitat for rare species like the jaguar, tapirs, and scarlet macaws may reduce the tourist rate, which is a local and global issue. Furthermore, it has been reported that through tropical deforestation like that of in the Central America's, there have been 140 species extinct. Potential loss or loss of species, contribute to the food chain in which could play into adverse affects to the surrounding environments and can then possibly be linked to other external environments indirectly.Similarly to the Amazonian rainforest, the Central American forest also "adds to local humidity through transpiration". Without the extra moisture from transpiration, rainfall totals are significantly decreased. Moreover, with less moisture in the air comes the increased susceptibility to fire. These local ramifications are quite serious and affect the quality of life of the surrounding populations, especially the poor, rural peoples who depend on the land for their livelihoods. In addition to the strain on the local environment, the destruction of the rainforests has "a broader impact, affecting global climate and biodiversity".
Scientific background linked to deforestation
In part of the deforestation processes of the Central America region, the following practices are associated with scientific aspects. As previously stated, the trees present are taking in the carbon dioxide and help to store this substance away from the atmosphere. In which essentially, serves a role to assist in making the atmosphere a healthier environment. However, in the process of deforestation, the trees are being removed and thus, contribute to less trees available to remove the substance and can potentially lead to an increased greenhouse effect. The increase of the greenhouse effect is a product of the atmosphere in turn warming up. In which case, will open up various affects like linking to flooding in certain regions, droughts in certain regions and overall portray a wide-variety of climate change implications. The warming up of the atmosphere can potentially link to all these factors and events through disrupting the ozone layer, and then possessing effects that can make certain glaciers and ice formations to then melt and result to a rise in sea-level. This can then be observed to produce extreme levels of water that can potentially take over lands and result to crash-floods. In addition, the process in which the warming up of the atmosphere by way of deforestation, could possibly lead to the Sun having increased exposure with stronger UV-rays that will be able to penetrate through the atmosphere. Therefore, manage to result in areas to dry up and have pro-longed exposure compared to regularly amount of sunlight needed. Subsequently, climate change effects like producing unusual weather condition patterns are associated along with warming the atmosphere. This would be through a disrupted ozone layer in the atmosphere and having the earth prone to exposure of increased sunlight in areas in which usually don't have as much sunlight and warmth in particular seasons, and could potentially have prolonged summers along with it, in part of the increased sun rays and the atmosphere possessing additional openings for sunray to come through.
Soil erosion
Moreover, another aspect in which is linked to the processes of deforestation is soil erosion. In which is noted as a process that occurs naturally, however it is noted to be faster and produce at a rate that incorporates implications when deforestation occurs. The following trees and plant species are present in environments to essentially slow down the rate at which water is going through in the environment. The roots of the following trees present are there to ensure that the soil is not taken away from the water passing through. In addition, the non-appearance of the trees/plant species could potentially play into the part of the topsoil of the land to erode in a fashion that is rapid like. Eroding of topsoil can have a factor in preventing healthy soil flourish and ensure species grow effectively.Groundwater levels
Deforestation is linked to factors affecting groundwater levels. Trees assist and contribute in producing water vapour contents in the atmosphere. Therefore, in the process of deforestation, this can mean less sources of trees to contribute water vapour out to the atmosphere. In which, results to less production of rain and indirectly plays into the factor of possessing adverse effects of the total levels of groundwater available.
Efforts to reverse the effects
It is found throughout studies and research that most individuals in Central America still depend on wood and charcoal as their primary fuel source. Hence, displaying how reducing the effective ability to reverse the problem of deforestation in the region could run into implications. However, it is advised from organizations like Conservation International, Trees for the Future and Rainforest Alliance, that regions of the Central America's should promote the replanting of trees in the region. This could be a potential push in the right direction, as this method could help in maintaining balance and reducing carbon emission to the environment. It should be noted and made aware, that the government could also take a course of action to further develop a campaign that promotes local residence in planting more trees and conservation to reduce deforestation. Also, it is strongly advised from various organizations and government parties, that the government should develop policies that protect the locals and grant them land ownership rights for them to fight for their rights and reduce drug trafficking in the region. In addition, other government parties and organizations previously mentioned are vocalizing that local and national governments should regulate the logging practices that are conducted in the areas to ensure that they are replanting trees and maintaining ecological balance. Furthermore, it is suggested that the government, in collaborations with other organizations, should empower the locals towards conservation of local resources through education, creation of jobs, and a proper justice system, among others. Also, regions of the central America's are constantly reminded and heavily advised to promote a sustainable rural economy through agroforestry with cocoa farming.Many countries have undertaken plans to conserve and replenish the forest in response to the recent upsurge in deforestation. Indigenous leaders, community land managers, and park rangers put their lives every day on the line to protect the forests of Mesoamerica. Also, the community and regional administrators developed the Petén Declaration, which contains a commitment to five specific measures to restore the region's forests: 1) support for local forests and native communities to gain land control; 2) improve the security of protected regions; 3) encourage the prosecution of environmental misconducts; 4) concentrate on illegal livestock as the key cause of deforestation; and protect the locals who are risking their lives to protect the environment.For example, in Nicaragua, forest management consists of shifting from timber to non-timber harvesting alongside sustainable logging methods. In Costa Rica, logging roads that had once added to the problem of deforestation are being researched as potential avenues of reforestation. Furthermore, in the mid-1990s, "damage-controlled logging practices" were implemented to prevent rampant illegal logging. Suggestions and possible solutions to issues like these, are present to encourage and empower the locals and reverse the rates of deformation in the region.
See also
Deforestation in the United States
Endangered species
Environmental impact of agriculture
Land use, land-use change, and forestry
Agricultural expansion
Geography of Honduras
Geography of Nicaragua
Geography of Costa Rica
Geography of Panama
Geography of Guatemala
== References == |
climate change in africa | Climate change in Africa is an increasingly serious threat as Africa is among the most vulnerable continents to the effects of climate change. Some sources even classify Africa as "the most vulnerable continent on Earth". This vulnerability is driven by a range of factors that include weak adaptive capacity, high dependence on ecosystem goods for livelihoods, and less developed agricultural production systems. The risks of climate change on agricultural production, food security, water resources and ecosystem services will likely have increasingly severe consequences on lives and sustainable development prospects in Africa. With high confidence, it was projected by the IPCC in 2007 that in many African countries and regions, agricultural production and food security would probably be severely compromised by climate change and climate variability. Managing this risk requires an integration of mitigation and adaptation strategies in the management of ecosystem goods and services, and the agriculture production systems in Africa.Over the coming decades, warming from climate change is expected across almost all the Earth's surface, and global mean rainfall will increase. Currently, Africa is warming faster than the rest of the world on average. Large portions of the continent may become uninhabitable as a result of the rapid effects of climate change, which would have disastrous effects on human health, food security, and poverty. Regional effects on rainfall in the tropics are expected to be much more spatially variable and the sign of change at any one location is often less certain, although changes are expected. Consistent with this, observed surface temperatures have generally increased over Africa since the late 19th century to the early 21st century by about 1 °C, but locally as much as 3 °C for minimum temperature in the Sahel at the end of the dry season. Observed precipitation trends indicate spatial and temporal discrepancies as expected. The observed changes in temperature and precipitation vary regionally.For instance, Kenya experiences high vulnerability to the impacts of climate change. The main climate hazards include droughts and floods with current projects forecasting more intense and less predictable rainfall. In addition, other projections anticipate temperatures rising by 0.5 to 2 °C. In crowded, urban settlements in Nairobi, Kenya, the conditions of informal settlements or "slums" may exacerbate the impacts of climate change and disaster-related risk. In particular, the living conditions of large informal settlements often create a warmer "micro-climate" due to home construction materials, lack of ventilation, sparse green space, and poor access to electrical power and other services. To mitigate climate change-related risks in these informal neighborhood settlements, it will be important to upgrade these settlements through urban development interventions that are built for climate resilience.
In terms of adaptation efforts, regional-level actors are making some progress. This includes the development and adoption of several regional climate change adaptation strategies e.g. SADC Policy Paper Climate Change, and the adaptation strategy for the water sector. In addition, there have been other efforts to enhance climate change adaptation, such as the Programme on Climate Change Adaptation, Mitigation in Eastern and Southern Africa (COMESA-EAC-SADC).As a supranational organisation of 55 member states, the African Union has put forward 47 goals and corresponding actions in a 2014 draft report to combat and mitigate climate change on the continent. The Secretary General of the United Nations has also declared a need for close cooperation with the African Union to tackle climate change, in accordance with the UN's sustainable development goals. The United Nations estimates that, considering the continent's population growth, yearly funding of $1.3 trillion would be needed to achieve the Sustainable Development Goals in Africa. The International Monetary Fund also estimates that $50 billion may be needed only to cover the expenses of climate adaptation.
Greenhouse gas emissions
Impacts on the natural environment
Temperature and weather changes
Observed surface temperatures have generally increased over Africa since the late 19th century to the early 21st century by about 1 °C, but locally as much as 3 °C for minimum temperature in the Sahel at the end of the dry season. Observed precipitation trends indicate spatial and temporal discrepancies as expected. The observed changes in temperature and precipitation vary regionally.Current climate models (as summarised in the IPCC Sixth Assessment Report) predict increases in frequency and intensity of drought and heavy rainfall events. They also predict decreases in mean precipitation almost everywhere in Africa, with medium to high confidence. However, local rainfall trends and socio-climatic interactions are likely to manifest in mixed patterns. Therefore, the converging impacts of climate change will vary across the continent. In rural areas, rainfall patterns influence water usage.A study in 2019 predicted increased dry spell length during wet seasons and increased extreme rainfall rates in Africa. In other words: "both ends of Africa's weather extremes will get more severe". The research found that most climate models will not be able to capture the extent of these changes because they are not convection-permitting at their coarse grid scales.
Impacts on people
Climate change will increasingly impact Africa due to many factors. These impacts are already being felt and will increase in magnitude if action is not taken to reduce global carbon emissions. The impacts include higher temperatures, drought, changing rainfall patterns, and increased climate variability. These conditions have a bearing on energy production and consumption. The recent drought in many African countries, which has been linked to climate change, adversely affected both energy security and economic growth across the continent.
Africa will be one of the regions most impacted by the adverse effects of climate change. Reasons for Africa's vulnerability are diverse and include low levels of adaptive capacity, poor diffusion of technologies and information relevant to supporting adaptation, and high dependence on agro-ecosystems for livelihoods. Many countries across Africa are classified as Least-Developed Countries (LDCs) with poor socio-economic conditions, and by implication are faced with particular challenges in responding to the impacts of climate change.Pronounced risks identified for Africa in the IPCC's Fifth Assessment Report relate to ecosystems, water availability, and agricultural systems, with implications for food security.In 2022, over 6,000 respondents from ten African nations took part in a climate survey conducted by the European Investment Bank. The survey found that 88% of respondents claimed climate change was hurting their lives, while 61% of respondents claimed that environmental destruction has impacted their income or source of livelihood. These losses are usually the result of severe drought, increasing sea levels or coastal erosion, or extreme weather events like floods or storms.More than half of African respondents (57%) said that they or people they know have already made steps to adapt to the effects of climate change. Among these measures are investments in water-saving devices to mitigate the effects of drought and drain clearance ahead of flooding. 34% of all African respondents said climate change is one of the most pressing issues confronting their country, among other key issues such as inflation and access to health care.
Economic impacts
Africa is warming faster than the rest of the world on average. Large portions of the continent may become uninhabitable as a result and Africa's gross domestic product (GDP) may decline by 2% as a result of a 1 °C rise in average world temperature, and by 12% as a result of a 4 °C rise in temperature. Crop yields are anticipated to drastically decrease as a result of rising temperatures and it is anticipated that heavy rains would fall more frequently and intensely throughout Africa, increasing the risk of floods.
Agriculture
Agriculture is a particularly important sector in Africa, contributing towards livelihoods and economies across the continent. On average, agriculture in Sub-Saharan Africa contributes 15% of the total GDP. Africa's geography makes it particularly vulnerable to climate change, and 70% of the population rely on rain-fed agriculture for their livelihoods. Smallholder farms account for 80% of cultivated lands in Sub-Saharan Africa. The IPCC in 2007 projected that climate variability and change would severely compromise agricultural productivity and access to food.: 13 This projection was assigned "high confidence". Cropping systems, livestock and fisheries will be at greater risk of pest and diseases as a result of future climate change. Crop pests already account for approximately 1/6th of farm productivity losses. Climate change will accelerate the prevalence of pests and diseases and increase the occurrence of highly impactful events. The impacts of climate change on agricultural production in Africa will have serious implications for food security and livelihoods. Between 2014 and 2018, Africa had the highest levels of food insecurity in the world.In relation to agricultural systems, heavy reliance on rain-fed subsistence farming and low adoption of climate smart agricultural practices contribute to the sector's high levels of vulnerability. The situation is compounded by poor reliability of, and access to, climate data and information to support adaptation actions. Observed and projected disruptions in precipitation patterns due to climate change are likely to shorten growing seasons and affect crop yield in many parts of Africa. Furthermore, the agriculture sector in Africa is dominated by smallholder farmers with limited access to technology and the resources to adapt.Climate variability and change have been and continue to be the principal source of fluctuations in global food production across developing countries where production is highly rain-dependent. The agriculture sector is sensitive to climate variability, especially the inter-annual variability of precipitation, temperature patterns, and extreme weather events (droughts and floods). These climatic events are predicted to increase in the future and are expected to have significant consequences to the agriculture sector. This would have a negative influence on food prices, food security, and land-use decisions. Yields from rainfed agriculture in some African countries could be reduced by up to 50% by 2020. To prevent the future destructive impact of climate variability on food production, it is crucial to adjust or suggest possible policies to cope with increased climate variability. African countries need to build a national legal framework to manage food resources in accordance with the anticipated climate variability. However, before devising a policy to cope with the impacts of climate variability, especially to the agriculture sector, it is critical to have a clear understanding of how climate variability affects different food crops. This is particularly relevant in 2020 due to the severe invasion of Locusts adversely affecting agriculture in eastern Africa. The invasion was partially attributed to climate change – the warmer temperature and heavier rainfall which caused an abnormal increase in the number of locusts.In East Africa, climate change is anticipated to intensify the frequency and intensity of drought and flooding, which can have an adverse impact on the agricultural sector. Climate change will have varying effects on agricultural production in East Africa. Research from the International Food Policy Research Institute (IFPRI) suggest an increase in maize yields for most East Africa, but yield losses in parts of Ethiopia, Democratic Republic of Congo (DRC), Tanzania and northern Uganda. Projections of climate change are also anticipated to reduce the potential of the cultivated land to produce crops of high quantity and quality.Climate change in Kenya is expected to have large impacts on the agricultural sector, which is predominantly rain-fed and thus highly vulnerable to changes in temperature and rainfall patterns, and extreme weather events. Impacts are likely to be particularly pronounced in the arid and semi-arid lands (ASALs) where livestock production is the key economic and livelihood activity. In the ASALs, over 70% of livestock mortality is a result of drought. Over the next 10 years, 52% of the ASAL cattle population are at risk of loss because of extreme temperature stress.Climate change will exacerbate the vulnerability of the agricultural sector in most Southern African countries which are already limited by poor infrastructure and a lag in technological inputs and innovation. Maize accounts for nearly half of the cultivated land in Southern Africa, and under future climate change, yields could decrease by 30%. Temperatures increases also encourage a wide spread of weeds and pests.Climate change will significantly affect agriculture in West Africa by increasing the variability in food production, access and availability.Higher rainfall intensity, prolonged dry spells and high temperatures are expected to negatively impact cassava, maize and bean production in Central Africa. Floods and erosion occurrence are expected to damage the already limited transportation infrastructure in the region leading to post harvest losses. Exportation of economic crops like coffee and cocoa are on the rise within the region but these crops are highly vulnerable to climate change. Conflicts and political instability have had an impact on agriculture contribution to the regional GDP and this impact will be exacerbated by climatic risks.Africa's gross domestic product (GDP) may decline by 2% as a result of a 1 °C rise in average world temperature, and by 12% as a result of a 4 °C rise in temperature. Crop yields are anticipated to drastically decrease as a result of rising temperatures and an increase in the likelihood of drought throughout the continent. Additionally, it is anticipated that heavy rains would fall more frequently and intensely throughout Africa, increasing the risk of floods.
Energy
With increasing population and corresponding energy demand, energy security must be addressed because energy is crucial for sustainable development. Climate change has affected energy sectors in Africa as many countries depend on hydropower generation. Decreasing rainfall levels and droughts have resulted in lower water levels in dams with adverse impacts on hydropower generation. This has resulted in low electrical energy production, high cost of electricity and power outages or load-shedding in some African countries that depend on hydroelectric power generation. Disruptions in hydropower generation have negatively affected various sectors in countries such as Ghana, Uganda, Kenya, and Tanzania.
Water scarcity
Water quality and availability have deteriorated in most areas of Africa, particularly due to climate change. Water resources are vulnerable and have the possibility of being strongly impacted by climate change with vast ramifications on human societies. The IPCC predicts millions of people in Africa will persistently face increased water stress due to climate variability and change (IPCC 2013). Changes in precipitation patterns directly affect surface runoff and water availability.Climate change is likely to further exacerbate water-stressed catchments across Africa – for example the Rufiji basin in Tanzania – owing to diversity of land uses, and complex sociopolitical challenges.
Health impacts
African countries have the least efficient public health systems in the world. Infectious disease burdens such as malaria, schistosomiasis, dengue fever, meningitis, which are sensitive to climate impacts, are highest in the sub-Saharan African region. For instance, over 90 percent of annual global malaria cases are in Africa. Changes in climate will affect the spread of infectious agents as well as alter people's disposition to these infections.
According to the IPCC's Sixth Assessment Report, climate change poses a significant threat to the health of tens of millions of Africans, as it exposes them to non-optimal temperatures, extreme weather, and an increased range and transmission rate of infectious diseases.Climate change, and resulting in increased temperatures, storms, droughts, and rising sea levels, will affect the incidence and distribution of infectious disease across the globe.In July 2021, the World Food Programme (WFP) blamed the ongoing southern Madagascar food crisis as being caused solely by climate change and not by war or conflict. It was declared to be first famine caused by climate change.
Malaria
In Africa malaria continues to have dramatic effects on the population. As climate change continues, the specific areas likely to experience the year-round, high-risk transmission of malaria will shift from coastal West Africa to an area between the Democratic Republic of the Congo and Uganda, known as the African Highlands.Scientific limitations when examining shifting malaria transmission rates in the African Highlands are similar to those related to broader understandings of climate change and malaria. While modeling with temperature changes shows that there is a relationship between an increase in temperature and an increase in malaria transmission, limitations still exist. Future population shifts that affect population density, as well as changes in the behavior of mosquitos, can affect transmission rates and are limiting factors in determining the future risk of malaria outbreaks, which also affect planning for correct outbreak response preparation.With regards to malaria transmission rates in the African Highlands, factors and exposures resulting from drastic environmental changes like warmer climates, shifts in weather patterns, and increases in human impact such as deforestation, provide appropriate conditions for malaria transmission between carrier and host. Specifically, malaria is caused by the Plasmodium falciparum and Plasmodium vivax parasites which are carried by the vector Anopheles mosquito. Even though the Plasmodium vivax parasite can survive in lower temperatures, the Plasmodium falciparum parasite will only survive and replicate in the mosquito when climate temperatures are above 20 °C. Increases in humidity and rain also contribute to the replication and survival of this infectious agent., Exposure to malaria will become a greater risk to humans as the number of female Anopheles mosquitos infected with either the Plasmodium falciparum or Plasmodium vivax parasite increases.Studies show an overall increase in climate suitability for malaria transmission resulting in an increase in the population at risk of contracting the disease. Of significant importance is the increase of epidemic potential at higher altitudes (like the African Highlands). Rising temperatures in these areas have the potential to change normally non-malarial areas to areas with seasonal epidemics. Consequently, new populations will be exposed to the disease resulting in healthy years lost. In addition, the disease burden may be more detrimental to areas that lack the ability and resources to effectively respond to such challenges and stresses.As climate change shifts geographic areas of transmission to the African Highlands, the challenge will be to find and control the vector in areas that have not seen it before.
Impacts on conflicts and migration
The United Nations Environment Programme produced a post-conflict environmental assessment of Sudan in 2007. According to this report, environmental stresses in Sudan are interlinked with other social, economic and political issues, such as population displacement and competition over natural resources. Regional climate change, through decreased precipitation, was thought to have been one of the factors which contributed to the conflict in Darfur. Along with other environmental issues, climate change could negatively affect future development in Sudan. One of the recommendations made by UNEP was for the international community to assist Sudan in adapting to climate change.
Impacts by region
Central Africa
Central Africa, for the most part, is landlocked and is geographically threatened by climate change. Due to its high climate variability and rainfed agriculture, Central Africa is expected to experience longer and more frequent heatwaves as well as an increase in wet extremes. The global mean temperature in this region is to increase by 1.5 °C to 2 °C.The carbon dioxide-absorbing capacity of forests in the Congo Basin have decreased. This decrease has occurred due to increasing heat and drought causing decreased tree growth. This suggests that even unlogged forests are being affected by climate change. A Nature study indicates that by 2030, the African jungle will absorb 14 percent less carbon dioxide than it did from around 2005–2010, and will absorb none at all by 2035.
Eastern Africa
Situated almost entirely in the tropics, rainfall in Eastern Africa is dominated by the seasonal migration of the tropical-rain band. Eastern Africa is characterized by high spatio-temporal rainfall variability as it spans over 30 degrees of latitude (across the equator). It has influences from both the Indian and Atlantic Oceans, and has major geographic features (highlands) as well as inland water bodies such as Lake Victoria. Therefore the rainfall seasonality varies from a single wet season per year in July–August in parts of the northwest (including Ethiopia and South Sudan, which are meteorologically more connected to West Africa, with the West African monsoon bringing the rains) to a single wet season per year in December – February in the south (over Tanzania), with many areas close to the equator having two rainy seasons per year, approximately in March–May (the "Long Rains") and October to December (the "Short Rains"). Fine-scale variability in rainfall seasonality is often linked to orography and lakes. Inter-annual variability can be large and known controls include variations in Sea surface temperatures (SSTs) of different ocean basins, large-scale atmospheric modes of variability such as the Madden–Julian Osciliation (MJO) and tropical cyclones. The Long Rains are the main crop-growing season in the region. Interannual predictability of this season is low compared to the Short Rains, and recent drying contrasts with climate projections of a wetter future (the "East African climate paradox".).
Eastern Africa has witnessed frequent and severe droughts in recent decades, as well as devastating floods. Trends in rainfall since the 1980s show a general decrease in March – May (MAM) seasonal rains with a slight increase during June – September (JJAS) and October – December (OND) rains, although there appears to have been a recent recovery in the MAM rains. In the future, both rainfall and temperature are projected to change over Eastern Africa. Recent studies on climate projections suggest that average temperature might increase by about 2–3 °C by the middle of the century and 2–5 °C at the end of the century. This will depend on emission scenarios as well as on how the real climate responds compared with the range of possible outcomes shown by models. Climate model projections tend to show an increase in rainfall, particularly during OND season, which is also projected to occur later. This delay in the short rain season, has been linked to the deepening of the Saharan Heat Low under climate change. It should be noted, however that some models predict decreasing rainfall, and for some regions and seasons the very largest rainfall increases predicted have been shown to involve implausible mechanisms due to systematic model errors. In addition, changes of aerosols provide a forcing of rainfall change that is not captured in many assessments of climate projections.The contrast of the drying trend of MAM (long rains) rainfall in equatorial Eastern Africa, with most models predicting a wetting in the future has been labelled the "East African climate change paradox", although there has been some recent recovery in the rainfall. Studies have shown that the drying trend is unlikely to be purely natural, but may be driven by factors such as aerosols rather than greenhouse gases, further research is needed. The drying has been shown to have been caused by a shorter rainy season, and linked to deepening of the Arabian Heat Low.Consistent with the uncertainty in rainfall projections, changes in rainy seasons onset are uncertain in equatorial Eastern Africa, although many models predict a later and wetter short rains. The Indian Ocean Dipole (IOD) is known to provide a strong control on inter-annual variability in the short rains, and studies show that extreme IODs may increase under climate change.Globally, climate change is expected to lead to intensification of rainfall, as extreme rainfall increases at a faster rate with warming than total rainfall does. Recent work shows that across Africa global models are expected to under-estimate the rate of change of this rainfall intensification, and changes in rainfall extremes may be much more widespread than those predicted by global models.Southern parts of Eastern Africa receive most of their rainfall in a single rainy season during the southern hemisphere's winter: over Tanzania seasonal rainfall is projected to increase under future climate change, although there is uncertainty. Further south, over Mozambique, a shorter season due to a later onset is projected under future climate change, again with some uncertainty.
North Africa
West Africa and the Sahel
The West African region can be divided into four climatic sub-regions namely the Guinea Coast, Soudano-Sahel, Sahel (extending eastward to the Ethiopian border) and the Sahara, each with different climatic conditions. The seasonal cycle of rainfall is mainly driven by the south-north movement of the Inter-Tropical Convergence Zone (ITCZ) which is characterised by the confluence between moist southwesterly monsoon winds and the dry northeasterly Harmattan.Based on the inter-annual rainfall variability, three main climatic periods have been observed over the Sahel: the wet period from 1950 to the early 1960s followed by a dry period from 1972 to 1990 and then the period from 1991 onwards which has seen a partial rainfall recovery. During the dry period, the Sahel experienced a number of particularly severe drought events, with devastating effects. The recent decades, have also witnessed a moderate increment in annual rainfall since the beginning of 1990s. However, total annual rainfall remains significantly below that observed during the 1950s.Some have identified the two recent decades as a recovery period. Others refer to this as a period of "hydrological intensification" with much of the annual rainfall increase coming from more severe rain events and sometimes flooding rather than more frequent rainfall, or similarly other works underline the continuity of the drought even though the rainfall has increased. Since 1985, 54 percent of the population has been affected by five or more floods in the 17 Sahel region countries. In 2012, severe drought conditions in the Sahel were reported. Governments in the region responded quickly, launching strategies to address the issue.The region is projected to experience changes in rainfall regime, with climate models suggesting that decreases in wet season rainfall are more likely in the western Sahel, and increases more likely in the central to east Sahel, although opposite trends cannot yet be ruled out. These trends will affect the frequency and severity of floods, droughts, desertification, sand and dust storms, desert locust plagues and water shortages.However, irrespective of the changes in seasonal mean rain, the most intense storms are expected to become more intense, amplifying flood frequency. Enhanced carbon emissions and global warming may also lead to an increase in dry spells especially across the Guinea Coast associated with a reduction of the wet spells under both 1.5 °C and 2 °C global warming level.Fifteen percent of Sahel region population has also experienced a temperature increase of more than 1 °C from 1970 to 2010. The Sahel region, in particular, will experience higher average temperatures over the course of the 21st century and changes in rainfall patterns, according to the Intergovernmental Panel on Climate Change (IPCC).
Southern Africa
Adaptation
To reduce the impacts of climate change on African countries, adaptation measures are required at multiple scales – ranging from local to national and regional levels. The first generation of adaptation projects in Africa can be largely characterized as small-scale in nature, focused on targeted investments in agriculture and diffusion of technologies to support adaptive decision-making. More recently, programming efforts have re-oriented towards larger and more coordinated efforts, tackling issues that spanning multiple sectors. According to a 2023 study, 59% of African banks have a climate change policy in place, with another 22% planning to implement one. 65% of banks presently consider climate risk when evaluating new clients or projects, with another 23% expecting to do so in the future.
Improved weather forecasting technology in sub-Saharan Africa is important to inform the response to climate change, to aid decision-making associated with adaptation to climate change for example.During the 21st Conference of the Parties (COP) in 2015, African heads of state launched the Africa Adaptation Initiative (AAI). The AAI's steering committee is composed of the African Ministerial Conference on Environment (AMCEN) Bureau and the chair of the African Group of Negotiators (AGN).The Africa Adaptation Initiative is also supported by the European Union. The European Union has partnered with the African Union on the promotion of sustainable resources management, environmental resilience, and climate change mitigationAt the regional level, regional policies and actions in support of adaptation across Africa are still in their infancy. The IPCC's Fifth Assessment Report (AR5) highlights examples of various regional climate change action plans, including those developed by the Southern African Development Community (SADC) and Lake Victoria Basin Committee. At the national level, many early adaptation initiatives were coordinated through National Adaptation Programmes of Action (NAPAs) or National Climate Change Response Strategies (NCCRS). Implementation has been slow however, with mixed success in delivery. Integration of climate change with wider economic and development planning remains limited but growing.At the subnational level, many provincial and municipal authorities are also developing their own strategies, for example the Western Cape Climate Change Response Strategy. Yet, levels of technical capacity and resources available to implement plans are generally low. There has been considerable attention across Africa given to implementing community-based adaptation projects. There is broad agreement that support to local-level adaptation is best achieved by starting with existing local adaptive capacity, and engaging with indigenous knowledge and practices.
The IPCC highlights a number of successful approaches to promote effective adaptation in Africa, outlining five common principles. These include:
Enhancing support for autonomous forms of adaptation;
Increasing attention to the cultural, ethical, and rights considerations of adaptation (especially through active participation of women, youth, and poor and vulnerable people in adaptation activities);
Combining "soft path" options and flexible and iterative learning approaches with technological and infrastructural approaches (including integration of scientific, local, and indigenous knowledge in developing adaptation strategies)
Focusing on enhancing resilience and implementing low-regrets adaptation options; and
Building adaptive management and encouraging process of social and institutional learning into adaptation activities.The World Health Organization's report "Adaptation to Climate Change in Africa Plan of Action for the Health Sector 2012–2016" is intended to "provide a comprehensive and evidence-based coordinated response of the health sector to climate change adaptation needs of African countries in order to support the commitments and priorities of African governments." The action plan includes goals like scaling up public health activities, coordinating efforts on an international scale, strengthening partnerships and collaborative efforts, and promoting research on both the effects of climate change as well as effective measures taken in local communities to mitigate climate change consequences.According to the International Monetary Fund (IMF), Sub-Saharan Africa requires $30–$50 billion in additional financing each year to adapt to the effects of climate change.Climate financing in the Middle East and North Africa totaled $32.6 billion (2% of the world total) in 2019/2020, while climate investment in Sub-Saharan Africa was $43.8 billion (3% of the global total).According to the European Investment Bank's Banking in Africa study 2021, African institutions are becoming more conscious of the need to address the dangers posed by climate change and are beginning to capitalize on possibilities in green financing. For example, 54% of questioned banks in the study saw climate change as a strategic concern, and more than 40% had people focusing on climate-related fronts. Sub-Saharan African banks are growing their digital offerings, which has been expedited by the COVID-19 pandemic. The majority of the banks surveyed said that the pandemic has accelerated the speed of digital transformation, and that this shift will be permanent.The poor and vulnerable are most susceptible, with migrant workers, refugees, and other marginalised groups likely to suffer the most. GDP per capita is not likely to rebound to 2019 levels until 2024, with risks tilting to the downside, and the crisis has reversed a predicted drop in the number of poor people, according to the IMF.
In comparison to pre-crisis forecasts, this might result in an additional 30 million people in Sub-Saharan Africa living in extreme poverty by 2021, as well as an additional nine million in the Middle East and North Africa (MENA) area.As of 2023, about a third of all African climate funding flows to five major markets: Morocco (7% of African climate investment in 2019/2022), Nigeria (7%), Kenya (7%), Ethiopia (6%), and South Africa (5%).Over the last decade, worldwide greenfield foreign direct investment has declined at a 3% annual rate, with Africa's global contribution dropping from 12% in 2017 to less than 6% in 2021.
Northern Africa adaptation measures
Key adaptations in northern Africa relate to increased risk of water scarcity (resulting from a combination of climate change affecting water availability and increasing demand). Reduced water availability, in turn, interacts with increasing temperatures to create need for adaptation among rainfed wheat production and changing disease risk (for example from leishmaniasis). Most government actions for adaptation centre on water supply side, for example through desalination, inter-basin transfers and dam construction. Migration has also been observed to act as an adaptation for individuals and households in northern Africa. Like many regions, however, examples of adaptation action (as opposed to intentions to act, or vulnerability assessments) from north Africa are limited – a systematic review published in 2011 showed that only 1 out of 87 examples of reported adaptations came from North Africa.
Western Africa adaptation measures
Water availability is a particular risk in Western Africa, with extreme events such as drought leading to humanitarian crises associated with periodic famines, food insecurity, population displacement, migration and conflict and insecurity. Adaptation strategies can be environmental, cultural/agronomic and economic.Adaptation strategies are evident in the agriculture sector, some of which are developed or promoted by formal research or experimental stations. Indigenous agricultural adaptations observed in northern Ghana are crop-related, soil-related or involve cultural practices. Livestock-based agricultural adaptations include indigenous strategies such as adjusting quantities of feed to feed livestock, storing enough feed during the abundant period to be fed to livestock during the lean season, treating wounds with solution of certain barks of trees, and keeping local breeds which are already adapted to the climate of northern Ghana; and livestock production technologies to include breeding, health, feed/nutrition and housing.The choice and adoption of adaptation strategies is variously contingent on demographic factors such as the household size, age, gender and education of the household head; economic factors such as income source; farm size; knowledge of adaptation options; and expectation of future prospects.
Eastern Africa adaptation measures
In Eastern Africa adaptation options are varied, including improving use of climate information, actions in the agriculture and livestock sector, and in the water sector.
Making better use of climate and weather data, weather forecasts, and other management tools enables timely information and preparedness of people in the sectors such as agriculture that depend on weather outcomes. This means mastering hydro-meteorological information and early warning systems. It has been argued that the indigenous communities possess knowledge on historical climate changes through environmental signs (e.g. appearance and migration of certain birds, butterflies etc.), and thus promoting of indigenous knowledge has been considered an important adaptation strategy.
Adaptation in the agricultural sector includes increased use of manure and crop-specific fertilizer, use of resistant varieties of crops and early maturing crops. Manure, and especially animal manure is thought to retain water and have essential microbes that breakdown nutrients making them available to plants, as compared to synthetic fertilizers that have compounds which when released to the environment due to over-use release greenhouse gases. One major vulnerability of the agriculture sector in Eastern Africa is the dependence on rain-fed agriculture. An adaptation solution is efficient irrigation mechanisms and efficient water storage and use. Drip irrigation has especially been identified as a water-efficient option as it directs the water to the root of the plant with minimal wastage. Countries like Rwanda and Kenya have prioritized developing irrigated areas by gravity water systems from perennial streams and rivers in zones vulnerable to prolonged droughts. During heavy rains, many areas experience flooding resulting from bare grounds due to deforestation and little land cover. Adaptation strategies proposed for this is promoting conservation efforts on land protection, by planting indigenous trees, protecting water catchment areas and managing grazing lands through zoning.For the livestock sector, adaptation options include managing production through sustainable land and pasture management in the ecosystems. This includes promoting hay and fodder production methods e.g. through irrigation and use of waste treated water, and focusing on investing in hay storage for use during dry seasons. Keeping livestock is considered a livelihood rather than an economic activity. Throughout Eastern Africa Countries especially in the ASALs regions, it is argued that promoting commercialisation of livestock is an adaptation option. This involves adopting economic models in livestock feed production, animal traceability, promoting demand for livestock products such as meat, milk and leather and linking to niche markets to enhance businesses and provide disposable income.In the water sector, options include efficient use of water for households, animals and industrial consumption and protection of water sources. Campaigns such as planting indigenous trees in water catchment areas, controlling human activities near catchment areas especially farming and settlement have been carried out to help protect water resources and avail access to water for communities especially during climatic shocks.
Comoros – "NAPA is the operational extension of the Poverty Reduction Strategy Paper (PRSP), as it includes among its adaptation priorities, agriculture, fishing, water, housing, health, but also tourism, in an indirect way, through the reconstitution of basin slopes and the fight against soils erosion, and therefore the protection of reefs by limiting the silting up by terrigenous contributions."
Kenya gazetted the Climate Change Act, 2016 which establishes an authority to oversee development, management, implementation and regulation of mechanisms to enhance climate change resilience and low carbon development for sustainable development, by the National and County Governments, the private sector, civil society, and other actors. Kenya has also developed the National Climate Change Action Plan (NCCAP 2018–2022 Archived 23 December 2019 at the Wayback Machine) which aims to further the country's development goals by providing mechanisms and measures to achieve low carbon climate-resilient development in a manner that prioritizes adaptation.
Central Africa adaptation measures
Angola – "The objective of the National Adaptation Programs of Action are to identify and communicate the urgent and immediate needs of the country regarding climate change adaptation, to increase Angola's resilience to climate variabilities and to climate change to ensure achievement of Poverty reduction programs, sustainable development objectives and the Millennium Development Goals pursued by the Government."
Southern Africa adaptation measures
There have been several initiatives at local (site-specific), local, national and regional scales aimed at strengthening to climate change. Some of these are: The Regional Climate Change Programme (RCCP), SASSCAL, ASSAR, UNDP Climate Change Adaptation, RESILIM, FRACTAL. South Africa implemented the Long-Term adaptation Scenarios Flagship Research Programme (LTAS) from April 2012 to June 2014. This research also produced factsheets and a technical report covering the SADC region entitled "Climate Change Adaptation: Perspectives for the Southern African Development Community (SADC)".Madagascar – the priority sectors for adaptation are: agriculture and livestock, forestry, public health, water resources and coastal zones.Malawi – The NAPA identifies the following as high priority activities for adaptation: "Improving community resilience to climate change through the development of sustainable rural livelihoods, Restoring forests in the Upper and Lower Shire Valleys catchments to reduce siltation and associated water flow problems, Improving agricultural production under erratic rains and changing climatic conditions, Improving Malawi's preparedness to cope with droughts and floods, and Improving climate monitoring to enhance Malawi's early warning capability and decision making and sustainable utilisation of Lake Malawi and lakeshore areas resources". And according to the World Bank's Country Climate and Development Report (CCDR) for Malawi, can "take steps to jumpstart investments in climate-resilient infrastructure and halt land degradation and forest loss to improve agriculture productivity and carbon capture" "
Mauritius – adaptation should address the following priority areas: coastal resources, agriculture, water resources, fisheries, health and well-being, land use change and forestry and biodiversity.Mozambique – "The proposed adaptation initiatives target various areas of economic and social development, and outline projects related to the reduction of impacts to natural disasters, the creation of adaptation measures to climate change, fight against soil erosion in areas of high desertification and coastal zones, reforestation and the management of water resources.""
Rwanda has developed the National Adaptation Programme of Action (NAPA 2006) which contains information to guide national policy-makers and planners on priority vulnerabilities and adaptations in important economic sectors. The country has also developed sector based policies on adaptation to climate change such as the Vision 2020, the National Environmental Policy and the Agricultural Policy among others.Tanzania – Tanzania has outlined priority adaptation measures in their NAPA, and various national sector strategies and research outputs. The NAPA has been successful at encouraging climate change mainstreaming into sector policies in Tanzania; however, the cross-sectoral collaboration crucial to implementing adaptation strategies remains limited due to institutional challenges such as power imbalances, budget constraints and an ingrained sectoral approach. Most of the projects in Tanzania concern agriculture and water resource management (irrigation, water saving, rainwater collection); however, energy and tourism also play an important role.Zambia – "The NAPA identifies 39 urgent adaptation needs and 10 priority areas within the sectors of agriculture and food security (livestock, fisheries and crops), energy and water, human health, natural resources and wildlife."Zimbabwe – "The other strategic interventions by the NAP process will be: Strengthening the role of private sector in adaptation planning, Enhancing of the capacity of Government to develop bankable projects through trainings, Improving management of background climate information to inform climate change planning, Crafting a proactive resource-mobilization strategy for identifying and applying for international climate finance as requests for funds are primarily reactive at present, focusing on emergency relief rather than climate change risk reduction, preparedness and adaptation, Developing a coordinated monitoring and evaluation policy for programs and projects, as many institutions within the government do not currently have a systematic approach to monitoring and evaluation."Lesotho – "The key objectives of the NAPA process entail: identification of communities and livelihoods most vulnerable to climate change, generating a list of activities that would form a core of the national adaptation program of action, and to communicate the country's immediate and urgent needs and priorities for building capacity for adaptation to climate change.""
Namibia – the critical themes for adaptation are "Food security and sustainable biological resource base, Sustainable water resources base, Human health and well being and Infrastructure development.South Africa has adopted in August 2020 its National Climate Change Adaptation Strategy, which "acts as a common reference point for climate change adaptation efforts in South Africa, and it provides a platform upon which national climate change adaptation objectives for the country can be articulated so as to provide overarching guidance to all sectors of the economy"
Society and culture
Inequality in climate research
Even though Africa is going to be one of the most affected continents from climate change, systematic inequity and other biases related to scientific research and funding mean that very little of the published science about climate change and climate research funding is for African scientist. An analysis of research money from 1990 to 2020 for climate change, found that 78% of research money for research on climate change in Africa was spent in European and North American institutions and more was spent for former British colonies than other countries. This pattern of parachute science, in turn both prevents local researchers from doing groundbreaking work, because they do not have the funding for experimental activities and reduces investment in local researchers ideas and in topics important to the Global South, such as climate change adaptation.Accurate sustainability evaluations are challenging due to a lack of sustainable investment frameworks, as well as data and managerial capability restrictions. Currently, fewer than half of Africa's top pension funds report information on sustainability policies and execution.The United Nations Conference on Trade and Development - International Standards of Accounting and Reporting (UNCTAD-ISAR) founded the African Regional Partnership for Sustainability and SDG Reporting in 2022. The collaboration has 53 members as of March 2023, including national corporate social responsibility networks and/or ministries from 27 African nations.
See also
Ecotourism in Africa
Regional effects of climate change
Water scarcity in Africa
References
External links
Future Climate For Africa programme
African Climate Policy Centre (ACCP) goal is to contribute to poverty reduction through successful mitigation and adaptation to climate change in Africa and to improve the capacity of African countries to participate effectively in multilateral climate negotiations.
African Monsoon Multidisciplinary Analysis 2050 (AMMA-2050) aim to address the challenges of understanding how the monsoon will change in future decades, to 2050, and how this information can be most effectively used to support climate-compatible development in the region.
Collaborative Adaptation Research Initiative in Africa and Asia (CARIAA) builds resilience by supporting collaborative research on climate change adaptation to inform adaptation policy and practice.
Integrating Hydro-Climate Science into Policy Decisions for Climate-Resilient Infrastructure and Livelihoods in East Africa (HyCRISTAL) was aimed to tackle uncertainties that exist around climate change projections for the region, concentrating in particular on what they mean for the availability and management of water.
Southern African Science Service Centre for Climate Change and Adaptive Land Management (SASSCAL) initiative aims to put possible solutions to the many challenges of global change to develop and produce scientifically sound findings and sustainable socio-economic benefits for the entire Southern Africa region.
West African Science Service Center on Climate Change and Adapted Land Use (WASCAL) is a research-focused Climate Service Centre designed to help tackle this challenge and thereby enhance the resilience of human and environmental systems to climate change and increased variability in West Africa. |
energy & environmental science | Energy & Environmental Science is a monthly peer-reviewed scientific journal publishing original (primary) research and review articles. The journal covers work of an interdisciplinary nature in the biochemical and biophysical sciences and chemical and mechanical engineering disciplines. It covers energy area. Energy & Environmental Science is published by the Royal Society of Chemistry.
According to the Journal Citation Reports, the journal has a 2021 impact factor of 39.714. The editor-in-chief is Jenny Nelson (Imperial College London).
Article types
Energy & Environmental Science publishes the following types of articles: Research Papers (original scientific work); Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest); Communications (original scientific work of an urgent nature), Opinions (personal, often speculative, viewpoints or hypotheses on a current topic), and Analysis Articles (in-depth examination of energy and environmental technologies, strategies, policies, and general conceptual frameworks of general interest).
Abstracting and indexing
According to the Thomson Reuters Master Journal List and CASSI, this journal is indexed by the following services:
Science Citation Index Expanded
Current Contents/ Agriculture, Biology & Environmental Sciences
Current Contents/ Physical, Chemical & Earth Sciences
Current Contents/ Engineering, Computing & Technology
Chemical Abstracts Service - CASSI
References
External links
Official website
Further reading
Energy & Environmental Science
2021 ESS PI Meeting Research Summary
CO2-Ausstoß für Fahrzeuge online berechnen (in German)
Advancing understanding of Earth and environmental systems from the molecular to the global scale |
environmental performance index | The Environmental Performance Index (EPI) is a method of quantifying and numerically marking the environmental performance of a state's policies. This index was developed from the Pilot Environmental Performance Index, first published in 2002, and designed to supplement the environmental targets set forth in the United Nations Millennium Development Goals.The EPI was preceded by the Environmental Sustainability Index (ESI), published between 1999 and 2005. Both indices were developed by Yale University (Yale Center for Environmental Law and Policy) and Columbia University (Center for International Earth Science Information Network) in collaboration with the World Economic Forum and the Joint Research Centre of the European Commission. The ESI was developed to evaluate environmental sustainability relative to the paths of other countries. Due to a shift in focus by the teams developing the ESI, the EPI uses outcome-oriented indicators, then working as a benchmark index that can be more easily used by policy makers, environmental scientists, advocates and the general public. Other leading indices like the Global Green Economy Index (GGEI) provide an integrated measure of the environmental, social and economic dynamics of national economies. The GGEI utilizes EPI data for the environmental dimension of the index while also providing a performance assessment of efficiency sectors (e.g. transport, buildings, energy), investment, green innovation and national leadership around climate change.
The EPI for the year 2022 ranks 180 countries. The top five countries are Denmark, United Kingdom, Finland, Malta and Sweden. India ranked last at 180 with a score of 18.9.
Methodology
EPI calculation variables change often as can be seen below. This should be taken into account when observing country performance through several reports, as it can lead to score and ranking changes founded just on methodology modification. Apart from variables addressing environmental health and ecosystem vitality, the calculation also takes into account other variables such as rule of law, control of corruption and government effectiveness.
2020 variables
2018 variables
The variables in 2018 are largely similar to those from 2016, but have changed in details and some weights.
Notably environmental Health is now weighted at 40% and ecosystem vitality at 60%.
EPI scores
2022
The Environmental Performance Index for the year 2022 ranks 180 countries.Top 100 countries and score
EPI report archive
Below is an unincorporated list of links to the archive of past reports
2016 EPI full report regional rankings and scores (pages 111 - 114)
2014 EPI full report regional rankings and scores (pages 121 - 123)
2010 EPI summary rankings and scores are on page 6. Includes pilot tend EPI
2010 EPI summary rankings and scores are on page 6
2008 EPI summary includes rankings and scores
2006 EPI pilot summary rankings and scores are on page 6
Criticisms
The methodology for the EPI has been criticized for its arbitrary choice of metrics which could introduce bias, and its poor performance as an indicator for environmental sustainability. Additional criticisms center on the EPI's lack of specific policy suggestions, and the index's weighting biases against data deficient countries that has led to the overlooking of ecological progress in developing countries. Below is a quote from the abstract:
Jordan spent 2001–2006 in a node represented by lower life expectancy due to particulate matter emissions (PME), but, from 2007 to 2010, the country shifted to a node with a lower PME magnitude—indicating a positive shift in overall environmental sustainability. By following the EPI ranking, the policymakers in Jordan may have assumed that their decisions between 2006 and 2008 led to a deterioration in environmental sustainability, when, in fact, the inconsistent nature of the weighting process involved in the EPI rankings is a likely cause...In 2022, India was ranked last in the list and rejected the low ranking. As per a statement issued by the Ministry of Environment, Forests and Climate Change (MoEF&CC), it claimed that several indicators used in the calculation were based on unfounded assumptions and unscientific methods.
See also
Environmental Vulnerability Index (EVI)
Consumer product labeling
References
External links
Yale University – EPI – A collaboration between Yale and Columbia Universities
Yale University – YCELP – Yale Center for Environmental Law & Policy
2018 Environmental Performance Index |
environmental systems analysis | Environmental systems analysis (ESA) is a systematic and systems based approach for describing human actions impacting on the natural environment to support decisions and actions aimed at perceived current or future environmental problems. Impacts of different types of objects are studied that ranges from projects, programs and policies, to organizations, and products. Environmental systems analysis encompasses a family of environmental assessment tools and methods, including life cycle assessment (LCA), material flow analysis (MFA) and substance flow analysis (SFA), and environmental impact assessment (EIA), among others.
Overview
ESA studies aims at describing the environmental repercussions of defined human activities. These activities are mostly effective through use of different technologies altering material and energy flows, or (in)directly changing ecosystems (e.g. through changed land-use, agricultural practices, logging etc.), leading to undesired environmental impacts in a, more or less, specifically defined geographical area, and time, ranging from local to global.
The basis for the analytical procedures used in ESA studies is the perception of flows of matter and energy associated to causal chains linking human activities to the environmental changes of concern. Some methods are focusing different parts or aspects of the energy/matter flows or the causal chains, where flow models like MFA or LCA deals with the more or less human controlled societal flows while, e.g. ecological risk assessment (ERA) is related to disentangling environmental causal chains.
Environmental systems analysis studies has been suggested to be divided between "full" and "attributional" approaches. The full mode covers identified material and energy flows and associated processes leading to environmental impacts. The attributional approach, on the other hand, is based on an analysis of the processes needed to fulfil a certain purpose such as the function that a product delivers.
The combination of methods (e.g. LCA and environmental risk assessment) has also been of interest Methods can be grouped into procedural and analytical approaches. The procedural ones (e.g. EIA or strategic environmental assessment, SEA) focus on the procedure around the analysis, while the analytical ones (e.g. LCA, MFA) put the main focus on technical aspects of the analysis, and can be used as parts of the procedural approaches. Regarding the impacts studied, the environmental issues cover both effects of natural resource use and other environmental impacts, e.g. due to emissions of chemicals, or other agents. In addition, environmental systems analysis studies can cover or be based on economic accounts (life cycle costing, cost-benefit analysis, input-output analysis, systems for economic and environmental accounts), or consider social aspects. The objects of study are distinguished into five categories. These are projects, policies and plans, regions or nations, firms and other organizations, products and functions, and substances.Further, environmental systems analysis studies are often used to support decision making and it is acknowledged that the decision context varies and is of importance. This regards, for example, that business activities can be related in different ways to the products and other objects studied in environmental systems analysis.
History
A perception of a coherent family of tools and methods for ESA started to become established by findings published in the year 2000. Common characteristics were found to recently have appeared across tools and methods that had previously been seen as distinct from each other. The characteristics were full and attribution approaches, respectively, and the tools and methods were each earlier determined by one unique combination of flow object, spatial boundary and relation to time.An overview of tools and methods for ESA was published five years later. It was to a large extent based on a series of reports and also drew on the life cycle management project CHAINET. The series of reports covered for example an introduction to tools for Esa that also related them to decision situations, and a study on differences and similarities between tools for esa where a short case study on heat production was included. In the CHAINET project, commissioned by the EU Environment and Climate programme, analytical tools for decision making were studied regarding demand and supply of environmental information, while procedural ESA approaches were not covered.An expansion of the field has occurred and a number of scientific journals publish extensively on the application of ESA methods e.g. Energy and Environmental Science, Environmental Science and Technology, Journal of Cleaner Production, International Journal of Life-cycle Assessment, and Journal of Industrial Ecology
Tools and methods
The environmental systems analysis tools and methods include:
Cost-benefit analysis (CBA)
Ecological footprint (EF)
Energy analysis (En)
Environmental impact assessment (EIA)
Environmental management system (EMS)
Input-output analysis (IOA)
Life-cycle assessment (LCA)
Life-cycle cost analysis (LCCA)
Material flow accounting (MFA)
Risk assessment
Strategic environmental assessment (SEA)
Systems for economic and environmental accounts (SEEA)
See also
Carbon footprint
Cleaner production
Ecological economics
Environmental management
Industrial ecology
Sustainability
Sustainable development
Sustainability measurement
Technology assessment
External links
Environmental Systems Analysis at Chalmers University of Technology, Sweden
Environmental Systems Analysis Group at Wageningen UR (University & Research centre), Netherlands
Agricultural and Environmental Systems Analysis at the University of Nottingham, Great Britain
== References == |
agriculture in california | Agriculture is a significant sector in California's economy, producing nearly US$50 billion in revenue in 2018. There are more than 400 commodity crops grown across California, including a significant portion of all fruits, vegetables, and nuts in the United States. In 2017, there were 77,100 unique farms and ranches in the state, operating across 25.3 million acres (10,200,000 hectares) of land. The average farm size was 328 acres (133 ha), significantly less than the average farm size in the U.S. of 444 acres (180 ha).Because of its scale, and the naturally arid climate, the agricultural sector uses about 40 percent of California's water consumption. The agricultural sector is also connected to other negative environmental and health impacts, including being one of the principal sources of water pollution.
Value
The table below shows the top 21 commodities, by dollar value, produced in California in 2017. Between 2016 and 2017, there were increases by more than 2% in total value for the following crops: almonds, dairy, grapes and cattle. The largest increase was seen in almond sales, which increased by 10.9% from 2016 to 2017, due to both increases in crop volume produced and the average market price for a pound of almonds. Dairy sales increased 8.2% from 2016 to 2017 due to an increase in the average price for milk, despite a slight decrease in total milk production. Grape sales increased by 3.1% from 2016 to 2017 due to an increase in price per ton of grape (from $832 per short ton ($917/t) in 2016 to $847 per short ton ($934/t) in 2017). Cattle sales also increased by 2.7% from 2016 to 2017.
Specific crops
Alfalfa
Orloff et al., 2009 find § Glyphosate use in this crop is driving resistance here.: 230
Almonds
Almonds contribute a mean of 0.77 pounds
N
2
O
−
N
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emissions per acre per year in Mediterranean agriculture systems.
Apple
The Fuji variety is a recent import from Fujisaki, Aomori, Japan. Introduced in the 1980s, it quickly became the most produced apple here.For a common disease and treatment see § Fire Blight and § Streptomycin.
Apricot
For a common pest see § Cucumber Beetle.
Avocados
California farms produce 90% of all U.S.-grown avocados, with the great majority being of the Hass variety. In 2021 the state harvest was 135,500 short tons (122,900 t) on 46,700 acres (18,900 ha) for a yield of 2.9 short tons per acre (6.5 t/ha), and at $2,430 per short ton ($2,679/t) that brought $327,369,000. Drought and heat can significantly reduce the harvest in some years. The Polyphagous Shothole Borer and the associated disease it carries have been a great concern here since their discovery on home avocado trees in LA County in 2012. Immediately eradication and quarantine efforts were instituted, and are continuing. (See § Polyphagous shot hole borer below.)
For two invasive pests which have significantly reduced grower earnings see § Avocado Thrips and § Persea Mite.
Barley
Barley stripe rust was first found near Tehachapi in May 1915 on Hordeum murinum by Johnson and reported by Humphrey et al., 1924.: 9 Hungerford 1923 and Hungerford & Owens 1923 found the pathogen on cultivated barley in the central part of the state and also on H. murinum here.: 9 See also § Stripe Rust.
Berries
See:
§ Blueberry
§ Caneberry, including:
§ Raspberry
Blueberry
The California Blueberry Commission represents growers. UC IPM provides integrated pest management plans for blueberry (Vaccinium spp.).
Broccoli
Almost all of the country's broccoli is grown here. In 2021 that was 11,200 planted acres (4,500 ha), all of which was harvested. The yield was 130.0 short hundredweight per acre (14,570 kg/ha; 13,000 lb/acre) for a harvest of 1,512,000 short hundredweight (68,600 t; 75,600 short tons). There was only trace wastage. Selling at a price of $51.50 per short hundredweight ($0.5150/lb; $1.135/kg), the year sold for $631,455,000.For an invasive pest of this crop see the painted bug § Bagrada hilaris.The typical biomass of harvest residue in the coastal regions is 5 dry short tons per hectare (1.8 t/acre). This is not necessarily a waste product, as it can be useful as fumigant, see § Isothiocyanate.
Caneberry
Caneberries (Rubus spp.) grown here include raspberry (see § Raspberry), blackberry, dewberry, olallieberry, and boysenberry.For a common disease of erect and trailing caneberry (excluding raspberry), see § Leaf Spot of Caneberry.
Cannabis
Cherries
The California Cherry Board is a state marketing order representing growers and intermediaries here. The USDA FAS's Market Access Program funds international advertising especially in Canada, South Korea, Japan, China, and Australia. The state produces the earliest crop in the year starting in mid-April. Lasting until early or mid-June every year, this is the second heaviest harvest after Washington.Planting density is usually about 100 trees per acre (250/ha) and the first real crop will be about six years later. Honey bees are essential to pollination for this crop. Cultivars grown here are harvested by hand with the stem (pedicel).The center of the state produces almost all the entire crop and San Joaquin County, near Lodi is the highest producing county. Many of these are Bing. As of 2022 newer Bing strains with better heat tolerance have recently been planted here as well as counties further south.Birds are common pests in cherry orchards. See § Birds in fruits and § Methyl anthranilate for a repellent.
Cherry cultivars
Besides Bing, Brooks, Chelan, Coral, Rainier, and Tulare are also common.
Citrus
The Mediterranean climate affords a lower rate of post-harvest disease than in some of the world's growing regions, similar to the Mediterranean itself, Australia, and most of South Africa.: 6 Postharvest problems that do occur tend to be mostly blue and green Penicillium spp.: 6 The Asian citrus psyllid was discovered in Southern California in 2008 and eradication and quarantine are now underway. (See § Asian citrus psyllid below.) DDT was formerly extensively used in this crop. (See § DDT.)
Cotton
Gossypium spp. are extensively grown in the Imperial Valley.§ Pink Bollworm spread to California from its original introduction in Texas. Despite wide establishment elsewhere in the southwest the San Joaquin Valley did not suffer permanent establishment. SJV was protected by its sterile insect technique (SIT) program although neighbouring areas were continuously infested. UC IPM provides management information.California was an early adopter of Bt cotton, but at a low proportion of acreage. The SJV does not use it at all. However Bt resistance has been slow to develop here and in Arizona and in Texas. In the California/Arizona population Tabashnik et al., 2022 find Cry1Ac resistance and Cry2Ab resistance are common but the causative mutations do not cause Vip3Aa resistance.§ Bemisia tabaci strain B is common in the Imperial Valley. The use of pyrethroids in the 1980s failed to control it and in deed caused a population increase.The southwest water shortage is reducing yield and acreage in the 2020s.Interferometric synthetic aperture radar (InSAR) surveys show this crop is a significant cause of groundwater-related subsidence.§ 1,3-dichloropropene and § Chloropicrin are effective against the complex of § Fusarium oxysporum f. sp. vasinfectum and § Nematode.Ortiz et al., 2017 provides a polymerase chain reaction (PCR) method which differentiates the California race 4 strain from all others based on the PHO gene. University of California Integrated Pest Management (UC IPM) provides practices for its control including Glenn County.Some Pythium spp. are seedborne diseases in cotton. UC IPM provide management information.Several Tetranychus spider mite species are common on cotton here including the Pacific Spider Mite (Tetranychus pacificus), the Two-Spotted Spider Mite (T. urticae): 18 and T. cinnabarinus.Eradication of the § Pink Bollworm in this and neighbouring states was greatly aided by the deployment of Bt cotton. The eradication program began elsewhere and was extended to the California Cotton Belt in 2007. Dennehy et al., 2011 find bollworm remained 100% susceptible to Cry1Ac and Cry2Ab2 through 2005 here and in Arizona.Pyrethrins are commonly used in this crop.Deynze et al., 2005 performs the first gene flow analysis in California cotton. Deynze finds pollinators are responsible for almost 100%.Lacewings and whiteflies (§ Bemisia tabaci strain B) are common pests of this crop.
G. barbadense is grown in a small part of the country including the southern part of this state.Delia platura is a common seed predator of this crop.Limonius spp. are pests of germination and seedling stage.§ Frankliniella occidentalis is rarely a pest. F. occidentalis are mostly a bioinsecticide of mites.§ Lygus hesperus is often confused for other species including some beneficial insects.Spodoptera praefica is a late season pest and rarely an early season pest.§ Blapstinus spp. affect seedlings.Empoasca fabae is the most common leafhopper in the San Joaquin Valley.Euschistus servus damages bolls.§ Spodoptera exigua is a pest of seedlings, young plants, squares and early bolls.Caliothrips fasciatus is a pest of the mature plant.The larvae of § Heliothis virescens are pests of bolls and squares.Gryllus spp. are pests of the early stages.Bucculatrix thurberiella's harm is limited to the southern deserts only.Autographa californica is found mostly in May and early June here.§ Aphis gossypii is the most common aphid in this crop.§ Agrotis ipsilon is a pest of the young plants.
Cucumbers
From 1997–2000, the state's acreage varied between 10,500–11,000 acres (4,200–4,500 ha) bringing in $57,969,000–$67,744,000. By 2021 however the harvest was down to 1,038,500 short hundredweight (47,110 t; 51,920 short tons) from 6,700 acres (2,700 ha) for a yield of 155 short hundredweight per acre (17.4 t/ha; 7.8 short ton/acre), and at $23.2 per short hundredweight ($510/t; $464/short ton) that brought only $24,043,000.
Dairy
Dates
Over 90% of US production is grown here, and most of that in the Coachella Valley. The distant second is Arizona. The 2020 harvest was 49,300 short tons (44,700 t) from 12,500 acres (5,100 ha), for a yield of 3.94 short tons per acre (8.8 t/ha). The year's crop sold for $114 million, an average of $2,320 per short ton ($2,557/t). The harvest extends from the beginning of October to the middle of December.The detection of the Red Palm Weevil (Rhynchophorus ferrugineus) in 2010 was very concerning to this valuable industry. See § Red Palm Weevil.
Figs
Calimyrna is a common cultivar here.Commodity figs here suffer from many insect pests here. See § Carpenter worm, § Darkling ground beetle, § Dried fruit beetle, § Freeman sap beetle, § Confused sap beetle, § Fig beetle, § Fig mite, § Fig scale, and § Navel orangeworm.
For common diseases see § Fig Smut and § Alternaria Rot of Fig.
Fish and shellfish
Relative to traditional farming, aquaculture is a small part of California's agricultural economy, generating only $175 million in 2014. Oysters, abalone, mussels, channel catfish, rainbow trout, and salmon are farmed commercially.
Grains
See § Barley and § Wheat.
Stripe rust is a continuous presence in the state. It is believed to have arrived in or before the 1770s because newspapers reported it starting then, and because there is a greater presence today of stripe than leaf or stem.: 3 See § Stripe Rust.
Grapes
Lettuce
UCCE's Vegetable Research & Information Center provides comprehensive production advice for this crop.Lettuce (Lactuca sativa) is commercially grown in the Central Valley, Central Coast, and deserts (the Imperial and Coachella valleys). It is one of the most labor-intensive crops in the state.Aphids are a major problem for lettuce on the Central Coast. See § Nasonovia ribisnigri for an important aphid, and § Toxomerus marginatus and § Platycheirus stegnus for biocontrols.
The Beet Armyworm (BAW, Spodoptera exigua) is a polyphagous insect pest in this crop. There is wide geographic variation in timing with BAW, the San Joaquin Valley being vulnerable more in fall than spring, the Central Coast late summer, and lower desert valleys September and October in established crops and November and December in young plants. Natural control is significant, from parasitoids Hyposoter exiguae, Chelonus insularis, and Lespesia archippivora, and Spodoptera exigua nuclear polyhedrosis virus (SeNPV). Discing as soon as possible after harvest and weed control to deny alternate hosts will help. Insecticides used include methoxyfenozide, Bacillus thuringiensis ssp. aizawai, SeNPV, chlorantraniliprole, spinosad, indoxacarb, emamectin benzoate, methomyl, ζ-cypermethrin, and permethrin. In organic, Bacillus thuringiensis and Entrust are used but note that any spinosad (including Entrust) will also harm the parasitoids.
Melons
For a common pest see § Cotton Aphid.
Nectarines
Because nectarines are hairless peaches, for most information see § Peaches.
Cultivars of nectarine
UCANR recommends cultivars for the state:
August Fire
Zee Fire
September Bright
Diamond Bright
Spring Bright
Arctic Pride
Arctic Snow
August Red
Diamond Ray
Honey Blaze
Honey Royale
Ruby Diamond
Summer Bright
Summer Fire
Oak
Oaks (genus Quercus) are cultivated for ornamental purposes and sometimes for acorns. For a devastating disease see § Sudden Oak Death.
Okra
Okra is not produced in any significant amount here. Imperial County grows the largest number of acres in the state.
Oleander
Oleander (Nerium spp.) suffers from various Xylella fastidiosa diseases here and there is some question as to whether and to what degree it shares inoculum with other crops including food crops. See § Xf of oleander.
Olives
Newton Pierce surveyed olive culture in the state and throughout the country for the United States Department of Agriculture (USDA) in 1897.Olives throughout the state suffer from the introduced Olive Fruit Fly. Neofusicoccum mediterraneum, Diplodia mutila, and D. seriata cause significant disease here. More specific controls than currently available are needed for N. mediterraneum in highly susceptible cultivars, namely Sevillano and Gordal, and early harvest may be needed for D. seriata. See § Olive Fruit Fly, § Neofusicoccum mediterraneum, § Diplodia mutila, and § Diplodia seriata.
The Olive Oil Commission of California was founded in 2014 as an entity of the State of California. The commission was established as a result of a bill introduced by Lois Wolk. The primary goal is to improve the sales of olive oil grown in California.
Parsley
Soil solarization is an alternative to soil treatment with methyl bromide. Stapleton et al., 2005 eliminate almost 100% of annual weeds in this crop with solarization alone. It completely fails against yellow nutsedge however.
Peaches
California is the country's largest grower of peaches, producing about 70% of the total.The California Freestone Peach Association (CFPA) and California Canning Peach Association/California Cling Peach Board (CCPA) represent the industry. (Although the CFPA is a separate incorporation, it has always been operated by the CCPA's staff.) The overwhelming majority of the country's peaches are grown here, in 2020 468,000 short tons (425,000 t) for sales of $308.3 million. Since 1980 the total value of the harvest has been slightly increasing. The acreage (hectares) planted in peach has been declining however, down to 73,000 acres (30,000 ha) as of 2020.As of 2021 cling deliveries for processing purposes have been on a downward trend for years. From 430,000 short tons (390,000 t) in 2010, delivered tonnage declined to 225,000 short tons (204,000 t) in 2021. Cling yield shows no clear trend over the same time, bouncing between 18.1 short tons per acre (41 t/ha) and 15.3 short tons per acre (34 t/ha).Prices have been trending mostly upward, from $317 per short ton ($349/t) in 2012 to $518 per short ton ($571/t).CCPA expects 2022 deliveries to be between 214,200–232,400 short tons (194,300–210,800 t) from a yield of 15.3–16.6 short tons per acre (34–37 t/ha).UCD hosts one of the major breeding programs in the country. Most of the private breeding programs for peach in the country are found in California, with a significant amount of the public breeding also being performed here.
Pear
Cultivation is heavily pesticide-dependent. In the 1970s that put growers on the "pesticide treadmill" – increasing control costs, resistance, and resurgence of previously controlled adversaries. In response the orchards, the UC system, and Sacramento have put together IPM plans which have increased control and decreased applications. Fire Blight is a major concern as it is throughout the continent. Fire Blight is so severe that it largely determines what areas may be commercially successful in pear and which may not, restricted to geographies inhospitable to epidemics. Even so, antibacterials are necessary. Experts believe that major efficacy loss or a regulatory ban would effectively end Bartlett cultivation here, 55% of the country's pears. See § Fire Blight and for the most common treatment, § Streptomycin.
UCR provides integrated pest management best practices through UCANR. Pear Psylla is one of the most serious of these pests, both due to its speed of insecticide resistance evolution and because it vectors the pear decline phytoplasma. The Asian pears P. serotina and P. ussuriensis have been widely used as rootstocks but are not being used in new plantings because their severe vulnerability to the decline phytoplasma. The California Pear Sawfly (Pristiphora abbreviata, not to be confused with the Pear Slug Caliroa cerasi) is a minor pest here and usually easily controlled. UC IPM recommends Entrust and Success (two Spinosad formulations).Integrated pest management (IPM) has a long history of successful use in this crop.
Pistachios
Total pistachio acreage increased from 106,000 to 554,000 acres (43,000 to 224,000 ha) between 2002 and 2022 as the hardy trees can thrive with moderately salty water and soil, which is widespread in parts of the Central Valley.Ferrisia gilli is an economically significant pest of pistachio here. F. gilli was formerly known as a California population of F. virgata, only being studied sufficiently to recognize that it is distinguishable from F. virgata due to its severe impact on pistachio and almond in this state. Jackrabbits, cottontails, and brush rabbits mostly damage pistachio trees when other food sources run out in winter or early spring. UC IPM recommends fencing, tree guards, baiting, shooting, repellents, and trapping.Alternaria and Botryosphaeria dothidea are significant fungal diseases of pistachios here which often receive strobilurin, iprodione, azoxystrobin, and tebuconazole treatments. See § Alternaria and § Botryosphaeria dothidea.
Plums
96% of the country's prunes and >70% of plums are grown here. Of that, >80% has come from the Sacramento Valley since the 1960s. For an invasive pest in the Bay Area, see § Plum Bud Gall Mite.
Cultivars of plum
UCANR recommends cultivars for the state:
Howard Sun
Santa Rosa
Angeleno
Friar
Blackamber
Flavor Fall
Owen T
Fortune
Black Kat
Black Splendor
Black Diamond
Black Beaut
Flavorich
Grand Rosa
Simka
Catalina
Royal Diamond
Pome
Pomes grown here include § Apple and § Pear. For a common disease see § Fire Blight.
Pomegranates
In pomegranate (Punica granatum), Black Heart (or "Heart Rot") is one of the most common diseases, as it is around the world.: 192 See § Black Heart.
Prunus
For Prunus spp. see § Stonefruit.
Raspberry
Over 80% of US raspberries (Rubus spp.) are grown here. The country's consumption has increased eightfold between 2001 and 2021. This crop is 15% of the state's fresh berry sales. Acreage (number of hectares) before 2014 is unknown, but in that year 6,800 acres (2,800 ha) produced 1.4 million short hundredweight (64,000 t; 70,000 short tons) selling for $434 million, then the next year 9,700 acres (3,900 ha) produced 2 million short hundredweight (91,000 t; 100,000 short tons) worth $547 million, and in 2016 9,700 acres (3,900 ha) produced 2.1 million short hundredweight (95,000 metric tons; 100,000 short tons) for $358 million, worth more than the peach harvest and four times the pear harvest. The state has the opportunity to capture much of the market because as of 2021 most of the raspberry (55%), blackberry, and blueberry market in the country is imported, with Mexico supplying 98% of imported raspberry and they have probably reached their limit. California produces the most fresh market red raspberries, while Washington is highest for the processed market. Because the recent expansion has taken acres that had been pasture, pest and disease pressure is very small – making organic an easy option. The available acreage for that kind of conversion may have reached the limit as of 2021 however. Pre-transplant soil fumigation is necessary in conventional, making organic inviable if this kind of new(-to caneberry) acreage is not available. Driscoll's is the marketer of 90% of raspberries from California and Mexico sold into the US.Leaf Spot is not common here. See § Leaf Spot of Raspberry, or for an easily confused disease which does not affect this crop, see § Leaf Spot of Caneberry.
Rice
By 2006, California produced the second-largest rice crop in the United States, after Arkansas, with production concentrated in six counties north of Sacramento.California's production is dominated by short- and medium-grain japonica varieties, including cultivars developed for the local climate such as Calrose, which makes up as much as 85% of the state's crop.
Small grains
UC ANR (University of California Division of Agriculture and Natural Resources) has a program specifically for small grains. UCANR provides pest management information and cultivation practices and organizes farmer education events. The small grains grown here are primarily wheat, barley, oats, and triticale, see § Barley and § Wheat. UC-IPM also produces publications specifically for pest management in these crops.Although small grains are not a large part of the overall agricultural productivity of the state, they are important enough in particular locations for ANR to have Extension workers especially for San Diego County, Kings County, San Joaquin County, Siskiyou County, Lassen County, Sutter- and Yuba- and Colusa- Counties, Davis, Kern County, Woodland, Yolo County, Tulelake, Siskiyou, Tulare, and Sonoma. Golden State Grains is an industry initiative which also cooperates extensively with the University of California breeding programs. GSG connects future farmers, present farmers, seed suppliers, processors, and consumers.See § Wild beet for a weed of these crops.
Stonefruit
Stonefruits are crops of the genus Prunus. For the largest harvests by weight see § Almond, § Apricot, § Cherry, § Peach, and § Plum.
Diseases of stonefruit
For common fungal diseases see § Monilinia fructicola, § Monilinia laxa, and for the fungicide see § Benzimidazole.UCD's FPS performs disease testing (especially for viruses), variety identification testing, and supplies budstock and rootstock. See also § Foundation Plant Services.
Breeding of stonefruit
So much of North America's stonefruit is grown here that almost all available propagation material is adapted to California specifically. Few accessions are available which are appropriate anywhere else. Even so, these are really made for the previous situation in the state, in which lower densities prevailed and dwarfing rootstocks were not used. With increasing mechanization there is a need for such rootstocks.
Pests of stonefruit
For a leaf gall pest see § Chokecherry Finger Gall Mite.: 178
Strawberries
Strawberries (Fragaria × ananassa) in the United States are almost entirely grown in California – 86% of fresh and 98% of frozen in 2017 – with Florida a distant second. The 2017 harvest was 1,461.2 thousand short tons (1,325.6 thousand metric tons) worth $3,100,215,000. Of that 30.0% was from Monterey, 28.6% from Ventura, 20.0% from Santa Barbara, 10.0% from San Luis Obispo, and 9.2% from Santa Cruz. The Watsonville/Salinas strawberry zone in Santa Cruz/Monterey, and the Oxnard zone in Ventura, contribute heavily to those concentrations.
Production has risen almost monotonically, from 2005 when 34,300 acres (13,900 ha) were harvested, yielding 600 short hundredweight per acre (67,000 kg/ha; 60,000 lb/acre), for a total yield of 20,580,000 short hundredweight (933,000 t; 1,029,000 short tons). The average price being $54.60 per short hundredweight ($1.204/kg; $0.5460/lb), the 2005 season's harvest sold for $1,122,834,000.The California Strawberry Commission is the Agriculture Department body which advocates for strawberry growers. The CSC provides information for both growers and consumers. Some towns have annual strawberry festivals, see Strawberry festival § United States. The Driscoll's company began with strawberries here and still grows and sells here, and they have since expanded to other states, countries, and types of berries.
Cal Poly runs the Strawberry Center for both research, and producer education.
Labor costs have increased drastically since 2018 especially in this crop, see § Labor.
Timber
Almost 40% of the state is forest, 39.7 million acres (16.1 million hectares; 62,000 square miles; 161,000 square kilometres). Of that 16.7 million acres (6.8 million hectares; 26,100 square miles; 68,000 square kilometres) was maintained as timberland as of 1996 of which about 77% is softwood. Most lumber grown here is used here in the construction industry and some additional lumber is imported from nearby states and provinces.
Tomatoes
Fresh market tomatoes
The Federal Risk Management Agency provides crop insurance for fresh market tomato here, through the regional office in Davis. 90% of FMT here comes from nine counties, San Joaquin County, Merced, Fresno, San Diego, Kern, Stanislaus, Kings, Tulare, and Sacramento. In 1999 44,000 acres (18,000 ha) were planted, yielding on average 12.5 short tons per acre (28 t/ha), for a gross dollar yield of $5,500 per acre ($14,000/ha).Tomatoes contribute a mean of 1.77
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emissions pounds per acre (1.98 kg/ha) per year in Mediterranean agriculture systems.Varieties used here widely incorporate Meloidogyne resistance.: 35
Walnuts
California walnuts account for nearly all the walnuts grown in the United States. In 2017, walnut production was the seventh most valuable agricultural commodity in California, valued at $1.59 billion in cash receipts.Walnuts contribute a mean of 1.34
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pounds per acre (1.50 kg/ha) emissions per year in Mediterranean agriculture systems.
Wheat
Wheat stripe rust is believed to have been present at or before the 1770s due to newspaper reports at the time, and due to the greater prevalence of stripe than leaf or stem.: 3 Hungerford (1923) and Hungerford & Owens (1923) found stripe on wheat here and almost all other western states.: 9 As first speculated by Tollenaar & Houston 1967, in some years inoculum from the Sierra Nevadas initiates the state's epidemics. Wheat sown in the fall (autumn) in the valleys suffers from stripe rust carried from wild grasses in the mountains. This is not the only source however, as stripe will also overwinter in Sacramento Valley wheat cover. See § Stripe Rust.
Wine
Livestock
Fowl
The domestic fowl industry suffers from avian malaria. Chickens (Gallus gallus/G. domesticus) and ducks (Anas platyrhynchos domesticus) are commonly infected, as well as various wild birds. Testing has been done since the Herman group made the first reports of P. relictum infection, in Herman 1951, Herman et al., 1954, and Reeves et al., 1954. (See § Avian malaria and § Plasmodium relictum for the parasite and vectors, and for testing.)
Honeybees
Honeybees (Apis mellifera) in and around Riverside developed DDT resistance in the 1950s. Extensive use of DDT in citrus may have been responsible. (See also § DDT, and § Citrus.)
Regions
Central Valley
The Central Valley of California is one of the world's most productive agricultural regions. More than 230 crops are grown there. On less than one percent of the total farmland in the United States, the Central Valley produces eight percent of the nation's agricultural output by value: US$43.5 billion in 2013. The top four counties in agricultural sales (2007 data) in the U.S. are in California's Central Valley: Fresno ($3.731 billion), Tulare ($3.335 billion), Kern ($3.204 billion), and Merced ($2.330 billion).Its agricultural productivity relies on irrigation both from surface water diversions and from groundwater pumping (wells). About one-sixth of the irrigated land in the U.S. is in the Central Valley. Central Valley groundwater pollution is an ongoing environmental issue in the area.
There are 6,000 almond growers who produced more than 1.8 million tonnes in 2013, about 60 percent of the world's supply.Parts of the Valley are quarantine as of July 2022 due to an ongoing pest eradication. The Peach Fruit Fly was found in Chowchilla and this is a threat not only here, but could spread to the entire state, and to a lesser degree the entire country and other locations around the world. See § Peach Fruit Fly.
Salinas Valley
The Salinas Valley, located within Monterey County, is one of the most productive agricultural regions in California. Monterey County grows over 50% of the national production for leaf lettuce, head lettuce, and celery. It also produces significant percentages of the country's broccoli, spinach, cauliflower, and strawberries. The area is also a significant producer of organic produce, with 68,868 acres in cultivation and annual sales of $412,347,000.
Organic farming
California has more certified organic farms than any other state. In 2016, more than a million acres in the state were certified organic. CA grows 90% or more of the U.S. production of Organic almonds, artichokes, avocados, broccoli, cauliflower, celery, dates, figs, grapes, strawberries, lemons, lettuce, plums, and walnuts.There are two primary laws that regulate organic production: at a federal level, the Organic Foods Production Act of 1990 and at a state level, the California Organic Food and Farming Act of 2016. Both laws lay out standards for production, processing, handling and retailing that must be followed in order to label a product as "organic". The USDA, California Organic Products Advisory Committee, and the California County Agricultural Commissioners monitor and ensure these standards are followed by administering enforcement actions for any violations.Any agricultural operation selling more than $5,000 in products per year is required to acquire organic certification, if they seek to sell their products under the organic label. Multiple organizations are accredited to certify operations organic.
Environmental and natural resources
Water use
The largest overall water users in California are the environment, agriculture and urban/ municipal uses. In an average year, about 40% of California's water consumption, or approximately 34.1 million acre-foot (42,100 million cubic metres), is used for agricultural purposes. However, the exact proportion of total water usage for agriculture can vary widely between 'wet' and 'dry' years, where in wet years, agriculture is responsible for closer to 30% of total water consumption and in dry years, agriculture is responsible for closer to 60% of total water consumption. Water for agriculture is used to irrigate more than 9 million acres (36,000 square kilometres) of cropland annually.Water for agriculture comes from two primary sources: surface water and groundwater. Surface waters include natural lakes, rivers, and streams, as well as large network of human-built reservoirs and a complex distribution system of aqueducts and canals that carry water from the location of the source to the agricultural users. Groundwater aquifers range in depth and accessibility across the state, and historically have been used to supplement surface water supplies in dry years.California is one of the top five states in water use for livestock. Water withdrawals for livestock use in California were 101–250 million US gallons (380,000,000–950,000,000 L)/day in 2010.Saudi Arabian companies and individuals have bought land here and in Arizona to benefit from subsidized water. This has produced criticism because the hay grown is exported to Saudi Arabia.
Water quality
Agricultural impacts on water quality concentrate around concerns of the following contaminants: nutrients, pesticides, salts, pollutants, sediment, pathogens, and heavy metals. These contaminants enter water bodies through above-ground surface runoff of rainwater or excess irrigation water, or percolating through the soil and leaching into groundwater. Water quality concerns affect most regions of the state and tend to be exacerbated during periods of drought.At present, all irrigated agricultural operations in the State are required to participate in the Irrigated Lands Regulatory Program. The regulatory program began after the California Legislature passed Senate Bill 390 (SB390) in 1990, that eliminated a blanket waiver for agricultural operations to discharge wastewater without any specific environmental standards.
Water supply
A major source for Southern California's water supply, both agricultural and urban, is the Colorado River from which an aqueduct has been built to transport the water from the river to Riverside. Colorado River irrigation is essential for agriculture to the Salton Sea Basin, which supports key agriculturally productive areas such as the Imperial Valley. Another aspect of the agricultural water supply in California is the transfer of water that takes place from northern to southern California. In northern California, the Shasta Dam contains the flow of the Sacramento River, preserving water for California's use, and pumping stations in the California Delta extract water transferring that water across the San Joaquin Valley and southward. A key component to the distribution of the water supply are the irrigation districts and water agencies who are responsible for delegating water as to meet the demand of those within the area as well as clarify and legal arbitration as to water rights.The agency tasked with overseeing the state's water supply and any projects associated with the upkeep of the supply is the California Department of Water Resources (CDWR). As part of the 2019-2020 California Spending Plan, the CDWR received $2.336 billion with $833 million going towards projects overseen by the California Natural Resources Agency and $1.503 billion going towards the control board supervised by the California Environmental Protection Agency. One of the CDWR's major projects is the State Water Project (SWP) which distributes 34% of the water that flows through its various channels. The SWP also is one of the largest suppliers of hydroelectric power in the state.The invasive quagga- and zebra-mussels reached the state in about 2006 and threaten the already limited supply of farm water. The mussels have continued to spread and present an ever-expanding threat to pipelines.
Air pollution
In 2014, California agriculture soils contributed to 51% of statewide greenhouse gas emissions. California's Mediterranean climate supports irrigation events such as nitrification which encourage nitrous oxide production. Mean nitrous oxide emissions (the biggest contributor to ozone depletion of all the major agricultural greenhouse gases) have been reported to be "four times higher in irrigated compared to rain-fed systems". Another factor which frequently contributes to increased
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emissions are warm soil temperatures (a common occurrence in California).
History
Pre-1850
Peake & Fleure 1927 propose that many crop wild relatives and a climate with both a rainy season and a dry season are necessary for an area to become a center of agriculture.: 8 Before human arrival a wide variety of crop wild relatives (CWRs) were already found here – and although most of land has a monotonously desert or near-desert rain supply – some has a climate type called Mediterranean.: 8 Since initial contact between Europeans and Indigenous American peoples, the topic of Native American agriculture has been debated. While agriculture in pre-contact California certainly did not fit into the Western definition of agriculture, the keen stewardship of California's natural ecosystem by Indigenous Californians to achieve the best possible output of resources is "agricultural," with California's ecosystems acting as a large, unbounded agricultural site. Because of this difference in ideology, agricultural practices in pre-contact California often took a different form than those of Europe.
Some California hunter-gatherer tribes, including the Owens Valley Paiute, developed irrigation. Native Californians were skilled at gathering materials from plants at all times of the year, allowing the consistent gathering of materials from any and all local plants. Depending on when various plants—including succulents, flowers, and trees—bloomed or became ripe, different aspects of the plant could be accessed or harvested by Native California peoples.
Native Californians also developed strategies when it came to competing with animals for resources. The Kashaya Pomo, for example, timed their harvest of dogwood to be before insects and worms would be able to access the inner parts of the plant. Indigenous Californians also developed strategies for acquiring black oak acorns directly from tree branches using a long pole, increasing harvest yields that would otherwise have been disturbed by animals.Black oak acorn harvests were further increased by cultural burning, which stimulated acorn growth and increased biodiversity in the area. Cultural burning was commonly practiced by throughout California to maintain a healthy landscape that produced quality resources, as the Karuk, Yurok, Hupa peoples all regularly burned areas of bear grass and California hazelnut and to encourage the growth of stronger stems that could be used for basketry.In the late 1700s, Franciscan missionaries established Spanish missions in California. Like earlier Spanish missions established in Baja California, these missions were surrounded by agricultural land, growing crops from Europe and the Americas, and raising animals originating from Europe. Indigenous workers from Baja California made up a large part of the initial labor force on California missions. In the early 1800s, this flow of laborers from Baja California had largely stopped, and the missions relied on converts from local tribes. By 1806, over 20,000 Mission Indians were "attached" to the California missions. As missions were expected to become largely self-sufficient, farming was a critically important Mission industry.
George Vancouver visited Mission San Buenaventura in 1793 and noted the wide variety of crops grown: apples, pears, plums, figs, oranges, grapes, peaches, pomegranates, plantain, banana, coconut, sugar cane, indigo, various herbs, and prickly pear.
Livestock was raised for meat, wool, leather, and tallow, and for cultivating the land. In 1832, at the height of their prosperity, the missions collectively owned over 150,000 cattle and over 120,000 sheep. They also raised horses, goats, and pigs.While the Spanish were the most successful farmers active in California in the early 1800s, they were not the only ones. In 1812, the Russians established Fort Ross in what is now Sonoma County, California, and intended the fort in part as an agricultural supply point for other Russian activity on the west coast. Despite Russian plans for the colony, agriculture at Fort Ross had low yields, significantly lower than the California missions. Inefficient farming methods, labour shortages, coastal fog, and rodents all contributed to limit agriculture at the fort.The Spanish (1784–1810) and Mexican (1819–1846) governments made a large number of land grants to private individuals from 1785 to 1846. These ranchos included land taken from the missions following government-imposed secularization in 1833, after which the missions' productivity declined significantly. The ranchos were focused on cattle, and hides and tallow were their main products. There was no market for large quantities of beef (before refrigeration and railroads) until the California Gold Rush.
1850–1900
In 1848, before the Gold Rush, the population of CA was approximately 15,000, not counting Native Americans. By 1852, there were over 250,000 people in the state. and by 1870, 560,000 people. This rapid population growth drove an increase in importation of agricultural products, and, within a few years, a massive growth in in-state agriculture. In the first years of the gold rush, the state relied on agricultural imports arriving by ship, from Australia, Chile, and Hawaii. During these years, there was rapid growth in vegetable farming for local markets. This was followed by an expansion of grain farming. A shift in the economic dominance of grain farming over cattle raising was marked by the passage of the California "No-Fence Law" of 1874. This repealed the Trespass Act of 1850, which had required farmers to protect their planted fields from free-ranging cattle. The repeal of the Trespass Act required that ranchers fence stock in, rather than farmers fencing cattle out. The ranchers were faced with either the high expense of fencing large grazing tracts or selling their cattle at ruinous prices. By the 1890s, California was second in US wheat production, producing over one million tons of wheat per year, but monocrop wheat farming had depleted the soil in some areas resulting in reduced crops.Irrigation was almost nonexistent in California in 1850, but by 1899, 12 percent of the state's improved farmland was irrigated.Luther Burbank moved to Santa Rosa, California in 1875, and developed numerous commercially successful varieties of plants over the next 50 years.
1900–1950
The 1902 Newlands Reclamation Act funded irrigation projects on arid lands in 20 states including California.
In 1905, the California legislature passed the University Farm Bill, which called for the establishment of a farm school for the University of California (at the time, Berkeley was the sole campus of the university). The commission took a year to select a site for the campus, a tiny town then known as Davisville. UC Davis opened its doors as the "University Farm" to 40 degree students (all male) from UC Berkeley in January 1909.
In 1919, the California Department of Food and Agriculture was established. The department covers state food safety, state protection from invasive species, and promoting the state's agricultural industry.
The Dust Bowl of the 1930s drove many people from the American prairie, and a significant number of these economic migrants relocated to California. Poor migrants from Oklahoma and nearby states were sometimes referred to as Okies, generally a pejorative term.
In 1933, the state saw a number of agricultural labor strikes, with the largest actions against cotton growers. Cherry, grape, peach, pear, sugar beet, and tomato workers were also involved.
In 1942, the United States began the Bracero program. Lasting until 1964, this agreement established decent living conditions and a minimum wage for Mexican workers in the United States.
1950–2000
In 1965, the Williamson Act became law, providing property tax relief to owners of California farmland and open-space land in exchange for agreement that the land will not be developed.
The 1960s and 1970s saw major farm worker strikes including the 1965 Delano grape strike and the 1970 Salad Bowl strike. In 1975, the California Agricultural Labor Relations Act of 1975 was enacted, establishing the right to collective bargaining for farmworkers in California, a first in U.S. history. Individuals with prominent roles in farm worker organizing in this period include Cesar Chavez, Dolores Huerta, Larry Itliong, and Philip Vera Cruz.
In the late 1980s the Ives flower ranch was the site of a notorious employment case. This ranch was in Ventura and involved Mixtec farm workers (from the southern Mexican state of Oaxaca) and illegal employment conditions. The ranch paid $1.5 million in unpaid wages and fines.Through 1995 there were 50,000 Mixtecs every year in California agriculture. They were about 70% of the 10,000 agricultural laborers in San Diego County, and had been spreading northwards to also work in Oxnard, Santa Maria and Madera County, and even into Oregon and Washington. They were usually not the only indigenous Mexican ethnic groups – Zapotecs and Mayans were also usually working the same jobs. In the 1990s it was common to arrive in Arizona first, work on an Arizonan farm, and then move here.
2001–present
In the 2000s and 2010s, Californians voted for propositions which established new protections for farm animals. 2008 California Proposition 2 and 2018 California Proposition 12 both established minimum requirements for farming egg-laying hens, breeding pigs, and calves raised for veal.
Few veal and pig factory farm operations exist in California, so these propositions mostly affect farmers who raise California's 15 million egg-laying hens.
Agricultural crime
California nut crimes have involved the theft of millions of dollars of nuts (almonds, pistachios, cashews and pecans) in multiple incidents since 2013.Water theft for agriculture has been an issue in times of drought, with the State assessing fines up to $1.5 million.
Pests
Despite its expansive geography, some pests are so severe, so polyphagous, and/or so wide-ranging as to be economically significant to the entire state.
The Navel orangeworm (Amyelois transitella) first entered from Arizona in 1942 and quickly began attacking walnut, date palm, and fig – despite its common name it is only a minor pest of citrus. (See § Walnuts, § Dates, and § Figs. In the decades since it has become a notorious pest of almond, pistachio, and pomegranate and remains problematic for walnut and fig as well. (See § Almonds, § Pistachios, and § Pomegranates.) First flight of NOW begins around April 17 and ends around May 29, and third flight is about August 8 to September 12. Second flight is not as much of a concern.
The light brown apple moth (Epiphyas postvittana, often abbreviated to LBAM) is a leafroller moth belonging to the lepidopteran family Tortricidae. Despite its common name it is a pest of a wide range of crops, not just apples, see § Apple, § Grape, and others. The moth was confirmed to be present in California in 2007, and spraying programs in 2007–2008 lead to the Light brown apple moth controversy.: 233 Tavener et al., 2011 finds novaluron works well but only when carried by horticultural mineral oil.: 56 Hosts include strawberry.
Asian citrus psyllids (Diaphorina citri) are a major invasive threat to citrus. (See § Citrus.)
Sellers et al., 2018 finds rodents and lagomorphs (jackrabbits, hares, other rabbits) do not seem to be a pest of walnut orchards here (see § Walnuts). On the other hand, jackrabbits, cottontails, and brush rabbits certainly are a problem for pistachios (see § Pistachios). The lagomorph biocontrol myxoma virus is indigenous here (that is, it is epidemiologically endemic) in native lagomorphs. This was first disclosed in Marshall & Regnery 1960 a&b. M & R found it in the tapeti (Sylvilagus brasiliensis) and the brush rabbit (Sylvilagus bachmani).
Olives throughout the state suffer from the introduced Olive Fruit Fly (Bactrocera oleae) here. First detected outside its traditional Old World co-occurrence with the host tree in Los Angeles County in November 1998, it has since spread throughout California and into Baja and Sonora.: 168 OFF is native to the Mediterranean basin and appears in some of the earliest written documents of human history, and is now found throughout much of the world.Particular strains of OFF are associated with particular varieties here. Burrack & Zalom 2008 find females have strong oviposition preferences for particular varieties and their offspring show better life history performance on those preferred varieties. The introduction here has spurred much parasitoid research, hoping to control them with biological controls. Daane et al., 2008, Sime et al., 2006, Sime et al., 2007, Yokohama et al., 2006, and Yokohama et al., 2008 all were undertaken to serve this state's need for parasitoids. Yokohama et al., 2008 achieves 60% control in cage trials using a Psyttalia cf. concolor. Daane et al., 2008 finds P. lounsburyi is especially specific to OFF over other possible hosts, and its selectivity makes it an attractive option. Daane et al. 2009 discloses an undescribed Pteromalus sp. nr. myopitae first found here. Overall there is much concern about offtarget impacts if these were to be released.
Aphid are common crop pests here. Nasonovia ribisnigri is one of the most common, especially for lettuce. See also § Lettuce, and § Toxomerus marginatus and § Platycheirus stegnus for the two most common biocontrols.
Birds are often pests in fruit cultivation here, especially in cherries. In cherry orchards the most common are crows (Corvus brachyrhynchos), crowned sparrows: (Zonotrichia spp.), European starlings (Sturnus vulgaris), house finches (Carpodacus mexicanus), house sparrows (Passer domesticus), scrub-jays (Aphelocoma californica), and Yellow-billed magpies (Pica nuttalli), but also in apple, blueberry, and grape, and the American Robin is a problem for some of these. See also § Methyl anthranilate for a repellent.
The Glassy-Winged Sharpshooter (GWSS, Homalodisca vitripennis, syn. H. coagulata) is a vector of Pierce's Disease and other Xylella fastidiosa diseases here. Probably present since the late 1980s, the GWSS was only confirmed here in 1994. GWSS was not obviously a threat until August 1999 when it vectored PD to over 300 acres (120 ha) of vineyard in Temecula, Riverside County, forcing its destruction. GWSS was first detected in Solano in November 2021, and although as of July 2022 absent from adjascent Napa is considered a high risk for introduction. The staff of the Napa County Agriculture Commissioner does inspections of all material entering the county to prevent that from happening. GWSS is such a problem in Fresno that there are permanent quarantine, monitoring, and eradication activities there.
In 1997 the Blue-Green Sharpshooter (BGSS, Graphocephala atropunctata, the primary PD vector) arrived here and the two have combined badly ever since. Besides vectoring PD they are also themselves a sucking pest and Hewitt et al., 1949 found they will often additionally go through reproduction on the vines. See § Pierce's Disease, § Grapes, and § Xf in stonefruit.
The European Grapevine Moth (Lobesia botrana, EGVM) was present from at least 2009 through 2014. A 10 acres (4.0 ha) block in Napa suffered a 100% crop loss in 2009 due to a burrowing worm. This was confirmed to be the EGVM by Gilligan et al., on September 30, 2009 (published in 2011). (It is native to southern Italy and may have arrived elsewhere in the state, possibly being detected as early as 2007 by Mastro et al., and published in 2010). Both USDA and CDFA impose quarantines if two moths are found within 3 miles (4.8 km) of each other within one lifecycle span. At first the quarantine zone was 5 miles (8.0 km) around the detection sites. In 2010, 40,000 traps revealed an expanded presence – in Fresno, Mendocino, Merced, Monterey, Napa, San Joaquin, Santa Clara, Santa Cruz, Solano, and Sonoma. The first detection in Sonoma was around Kenwood on March 29, 2010, then a total of 59 across the County that year. In 2011 only nine were detected on two sites in Sonoma, and despite the quarantine the pest spread to Nevada County in 2011. The quarantine was lifted in Fresno, Mendocino, Merced, and San Joaquin in February 2012, only one insect was found in Sonoma for the year, the quarantine was lifted in Nevada, Santa Clara, and Santa Cruz counties in December, and was greatly shrunk in Solano and Sonoma in the same month. No detections occurred in Sonoma in 2013. The quarantine was lifted in Solano in 2014 but one EGVM was found in Sonoma for the year and so the quarantine remained in Napa and Sonoma. The last detection being in June 2014 in Sonoma, all USDA and state quarantine and trapping activities ended with the declaration in August 2016 of a successful eradication. See also § Grapes.
Carpenter Worm (Prionoxystus robiniae), Darkling ground beetle (Blapstinus fuliginosus), Dried fruit beetle (Carpophilus hemipterus), Freeman sap beetle (Carpophilus freemani), Confused sap beetle (Carpophilus mutilatus), Fig beetle (Cotinis texana syn. C. mutabilis), Fig mite (Aceria fici), Fig scale (Lepiosaphes conchiformis), and Navel orangeworm are among the most important pests of fig here. (See § Figs and § Navel orangeworm.)
Japanese Beetle (Popillia japonica) has been repeatedly found here and repeatedly eradicated. Monitoring and eradication continue especially because of the wide host range of the grubs but also due to the grubs' and adults' destructiveness.The Plum Bud Gall Mite (Acalitus phloeocoptes (Nalepa)) was first confirmed here in Santa Clara County in February 2019, but may have been found in northern Marin in early 2014. Certainly since 2019 it has become widespread in the Bay Area, as of 2021 reaching Contra Costa, Alameda, San Mateo, Santa Cruz, Sonoma, and north into Western Oregon. So far PBGM is known to be a problem on plum and pluot (see § Plums) and not on other stonefruits, especially not almond, even almonds nearby to infested orchards.
The Silverleaf Whitefly (SLW, Bemisia tabaci strain B) was first noticed here in the fall of 1991. First appearing in the valleys of the state's deserts, it has caused about $500 million in agricultural losses here through 2019. Further economic effects include $774 million in lost sales, $112.5 million in lost personal income, and the loss of 12,540 jobs. SLW is intractable in the southern deserts, especially in Imperial, Palo Verde, Coachella, and the southern part of San Joaquin vallies. In the SJV this is worst on § Cotton. Himler et al., 2011 find the Rickettsia sp. nr. bellii symbiont rapidly invaded the population of California, Arizona and New Mexico.Aleyrodes spiraeoides is a native whitefly. Hosts include strawberry.Trialeurodes vaporariorum has recently invaded the Central Coast and Southern areas. Hosts include strawberry.Trialeurodes packardi is a pest of strawberry whiteflies but less commonly than A. spiraeoides.
A Painted Bug, Bagrada hilaris was first detected here in 2008 in San Diego, Orange, Los Angeles, 2009 in Ventura, Riverside, and Imperial counties; 2010 in Kern, San Bernardino; no new discoveries here in 2011; 2012 in Santa Barbara & San Luis Obispo; 2013 in Monterey, Santa Cruz, San Benito, Fresno, Tulare, San Francisco; 2014 in Inyo, Kings, Merced, Stanislaus, Santa Clara, Alameda, San Mateo, and Yolo. From here it has become an invasive pest of Brassicas throughout the southwest US, neighboring Coahuila, and the Big Island of Hawaii. The most valuable crop threatened is § Broccoli. Much of the research on this pest in this part of the world has been performed by the Palumbo group at the University of Arizona.
Lygus bugs are common pests here including the Western Tarnished Plant Bug (WTPB, Lygus hesperus). A vacuum collector is often used for WTPB in strawberry, called the BugVac. (See also § Strawberry.)
The Spotted Wing Drosophila (Drosophila suzukii) is a major insect pest of soft body fruits here, especially grape, strawberry, tomato, cherry, raspberry and other caneberries, peach and nectarine, fig, and blueberry. Ganaspis brasiliensis is a parasitoid which has been successful as a biocontrol here.
Other Drosophila species include D. melanogaster and D. simulans which vector sour rot and bunch rot pathogens between grape bunches. Hosts include grape and strawberry.Turelli et al., 1991 uses a genetically modified Wolbachia to suppress D. simulans to suppress its vectored diseases here. (This has become a widely known example of Wolbachia use, and has informed European decision making on vector control.)
The Salt Marsh Caterpillar (Estigmene acrea) is very common here, but usually causes no damage because they are a native pest with many natural enemies acting as biocontrols. SMC can be significant in strawberry, see § Strawberries.
The Peach Fruit Fly (Bactrocera zonata Saunders) has been repeatedly introduced and quickly eradicated here, in 1984 and in 2006. Then on September 29 and/or 30, 2020, three PFF were found in Chowchilla, Madera County. This presents a tremendous hazard not only to the area but to the state, and indeed the entire country. Because the pest may spread from here to other countries, trading partners including the European Union and New Zealand are also concerned. They are considering restricting importation of fruits and vegetables from the state. As a result, the Secretary of CDFA, Karen Ross has declared a biosecurity emergency and eradication efforts using methyl eugenol lures are underway. Especially an immediate concern are California's $2.10b citrus-, $875m stonefruit-, and $1.19b tomato industries. (See also § Chowchilla, § Citrus, § Stonefruit, and § Tomatoes.)
The Green Fruit Beetle (Figeater Beetle, Cotinis mutabilis) is occasionally a pest of ripened fruit, including apricot, caneberry, fig, grape, peach, and plum. The larvae/grubs are harmless however.
For Beet Armyworms (BAW, Spodoptera exigua) in strawberry and lettuce see § Pests of strawberry and § Lettuce. S. exigua populations here have long standing carbamate resistance.
First identified here in 1992 in La Mesa, San Diego County by Haagsma et al., the Formosan Termite (Coptotermes formosanus) has been here since at least 10 years prior. As with every other infestation anywhere in the world, it has never been eradicated, and is still present at the original La Mesa site. In the time since there have been new infestations – mostly suspected to be independent introductions – in Canyon Lake, Riverside County in 2020, Rancho Santa Fe, San Diego County in 2021, Highland Park, Los Angeles County in 2021. The Formosan Termite is a pest of sugarcane, and for another host see § Citrus, but it is most often a structural pest.
Cucumber Beetles (Diabrotica balteata, Acalymma vittatum, D. undecimpunctata) are common pests here. UC IPM provides recommended practices for apricot, see also § Apricot.
Phylloxera of Grape (Daktulosphaira vitifoliae) is a perennial aphid problem here.: 24–25 The industry suffered a wipeout in the 1980s due to overreliance on one, non-resistant rootstock.: 24–25 Islam et al., 2013 explains some of the genetic diversity of the population here by sexual reproduction, but their sampling leaves open other possibilities for the remainder. They also find two major subpopulations differentiated by rootstock association: AxR1 associated and those associated with all others.
The detection of the Red Palm Weevil (Rhynchophorus ferrugineus) in 2010 was very concerning to this valuable industry. It most likely arrived with in live palms which are commonly sold internationally. The adults flew up to 900 metres (2,953 ft; 984 yd) in a day, and over 3 to 5 days that allowed dispersal up to 7 kilometres (4.3 mi). A tremendous effort was made to trap and eradicate, UCR's Center for Invasive Species Research recommended mostly insecticides, and quick destruction of any palms found to be infested. Pheromone attractant traps were very effective. The California Fan Palm (Washingtonia filifera) and the European Fan Palm (Chamaerops humilis) seemed to be resistant. The last sighting was on January 18, 2012. Three years later on January 20, 2015, USDA's APHIS declared the eradication successful. Its relative the South American palm weevil (R. palmarum) has killed increasing numbers of Canary Island date palms (Phoenix canariensis) and is expected to become a significant pest of dates in the future. For a common host see § Date.
Several Culex mosquitoes are common here including C. quinquefasciatus, C. stigmatosoma, and C. tarsalis. Insecticides are often used in their control and as a result some species have undergone resistance evolution. Mouches et al., 1986 finds one population achieved this via gene amplification of an esterase. See also § Avian malaria.
The southern part of the state suffers from the Walnut Aphid (Spotted Alfalfa Aphid, Therioaphis trifolii). Stern & Reynolds 1958 finds that from the beginning of the 1950s to the end of the decade severe parathion resistance had rapidly developed there.
The common House Fly (Musca domestica) is economically significant in poultry production worldwide, including in California. From 1964 to 1969 Georghiou & Hawley 1972 finds rapid evolution of organophosphate resistance in a poultry facility in Moorpark. The most common permethrin kdr allele here is kdr-his, although kdr and super-kdr are also present. (This profile is also found in New Mexican, Floridian, North Carolinian, New York, and Montanan populations.)The Mexfly (Mexican fruit fly, Anastrepha ludens) has repeatedly invaded the southern part of the state.: 16 Sterile insect technique (SIT) has been used to great success to eradicate them every time, both here and in Texas.: 16 (See also § Sterile Insect Technique.)
The Medfly (Mediterranean fruit fly, Ceratitis capitata) has also been controlled with SIT both here and in Florida, although before 1980 both states used malathion baits.: 18 Eradication by SIT was accomplished with the help of the Nuclear Techniques in Food and Agriculture program, a joint effort of the United Nations Food and Agriculture Organization and the International Atomic Energy Agency (FAO-IAEA).: 30 (See also § Sterile Insect Technique.) Studies of the Medfly invasion here show that there have been many almost-invasions at the state's airports and other ports, most of which have failed to establish including a small infestation in 1975 in Los Angeles which was eradicated using SIT.: 174 This has informed quarantine and invasion biology efforts and studies on the Medfly around the world.Tetranychus is a genus of spider mites.: 18 Three species are common on cotton here: 18 including the Pacific Spider Mite (Tetranychus pacificus) and the Two-Spotted Spider Mite (T. urticae).: 18 and they are hard to distinguish because they are sympatric.: 18 Distinguishing them is nonetheless necessary, because they differ widely in insecticide resistance, with the PSM the worst.: 18 The PSM and 2SSM are also significant in peach here. (See § Cotton and § Arthropods in peach.) Two-Spotted Spider Mite is also a major pest of strawberry, see Production of strawberries in California.
Cotton Aphids (Aphis gossypii, Melon Aphid) afflict cotton and melon crops here. Insecticides are commonly used, and this has produced resistance and may also contaminate their honeydew. Insecticide contaminated honeydew may harm beneficial insects. See also § Cotton.
The Avocado Thrips (Scirtothrips perseae) and Persea Mite (Oligonychus perseae) are two invasive pests here. For a host see § Avocado.
The Tobacco Budworm (Chloridea virescens, Heliothis virescens) is common on cotton in the Imperial Valley.: 80 At least by 1985 C. virescens had developed permethrin resistance.: 80 Nicholson & Miller 1985 find severe metabolic resistance to permethrin in Imperial Valley populations.: 80 See also § Cotton and Imperial Valley.
Western Flower Thrips (Frankliniella occidentalis) is a major pest of horticulturals around the world. Here, it is especially known as a pest of peach and strawberry. (See also § Cultivars of strawberry, § Arthropods in peach, § Pests of strawberry.)
The Diamondback Moth (Plutella xylostella) is a common insect pest here. Btk (Bacillus thuringiensis kurstaki) is a commonly used insectide for Diamondback Moth control in California. Shelton et al., 2000 finds a high degree of natural genetic variation in Btk resistance in the state's DM population.The Chokecherry Finger Gall Mite (Eriophyes emarginatae) produces leaf galls on several Prunus here.: 178 See also § Prunus.
Several Aedes spp. are present. A. aegypti is found as an exotic pest here. Gloria-Soria et al., 2016 finds a significant amount of shared genetics between the population of the southern part of the state and New Mexico, Arizona, and Mexico.Procambarus clarkii is an invasive crayfish across the Western US. It was first imported to a frog farm in San Diego County in 1932, and proved so successful as feed and food that descendants were sold around the state. They escaped and now are a widespread nuisance.Lymantria dispar (spongy moth, gypsy moth) is an established pest here. Epanchin-Niell et al., 2012 find that annual surveillance costs can be easily reduced. Costs are reduced by 50% by targeting surveillance resources based on the difference in surveillance cost by location, and by the difference in establishment risk by location.
California is known to be free of Bactrocera tau (Walker). Very few jurisdictions – including this state, Florida, and New Zealand – are at such risk that a system of Steiner traps using methyl eugenol is employed to provide early warning of an invasion. Crops especially at risk include tomato, bell pepper, watermelon, other melons, cucumber and pumpkin. (See also § Tomato, § Melon and Cucumber § Notes.)
California red scale (Aonidiella aurantii) is an invasive pest here. It competitively displaced a prior invader Yellow scale (A. citrina). Debach et al., 1978 finds that A. citrina is now extinct in this state due to the invasion of A. aurantii.The Black Vine Weevil (Otiorhynchus sulcatus) is mostly found in the Central Coast AVA but does rarely occur elsewhere. Hosts include grape and strawberry. Creeping red fescue (Festuca rubra) is an alternate host.Otiorhynchus cribricollis (Cribrate weevil) is common in the San Joaquin Valley. It is sometimes a problem in strawberry in the area.Helicoverpa zea (syn. Heliothis zea) is common in several parts of the state including all strawberry growing areas. H. zea is especially troublesome in southern coastal California.Cyclamen Mites occur natively here. Hosts include strawberry.Scutigerella immaculata is an introduced pest restricted to high moisture soil. Hosts include strawberry.Some slugs (Gastropoda spp.) are vegetable and fruit pests here. Several are introduced pests from Europe. Hosts include strawberry.
European Earwigs are most destructive from April to July here. Hosts include strawberry.Eotetranychus lewisi is found in coastal areas including Oxnard and Salinas. Hosts include strawberry.Agrotis ipsilon is the most common cutworm here. Hosts include strawberry.Pandemis pyrusana is present and eats the leaves of several crops. Hosts include strawberry.Clepsis peritana is an ecologically important saprovore. Later in the season it is a pest of strawberry.Myzus persicae is present. Hosts include strawberry.Macrosiphum euphorbiae is much larger than other aphids in California. Populations here have two forms, a green and a red. Hosts include strawberry.Aedes albopictus is a pest of livestock concern. Modified Wolbachia have been released to control this species here.
Pectinophora gossypiella
The Pink Bollworm (Pectinophora gossypiella) was devastating to cotton growers here and throughout the southwest. Chu et al., 1996 reports a management program in the Imperial Valley in which government imposed practices successfully reduced populations. This bollworm is now extirpated from the entire country including this state, thanks to the efforts of Osama El-Lissy and his collaborators.Wang et al., 2010 and 2011 find a Pectinophora gossypiella PiggyBac like element 1 (PgPLE1) variant and insertion site of the Imperial Valley population not found elsewhere in the world. See also § Cotton.
Weeds
Rejmanek & Pitcairn 2002 overview 53 weed eradication campaigns in the state, and find that any infestation smaller than 2.5 acres (1.0 ha) was usually successfully eradicated, while anything which had already reached 2,500 acres (1,000 ha) was essentially impossible to do.: 137 Yellow Sweetclover (Melilotus officinalis L. Lam.), Chickweed (Stellaria spp.), Annual Bluegrass (Poa annua Linnaeus), Shepherd's Purse (Capsella bursa-pastoris Linnaeus Medikus), Crabgrass (various Digitaria spp.), Spotted Spurge (Euphorbia maculata Linnaeus Small), and Yellow Nutsedge (Cyperus esculentus) are common weeds here, including in strawberry and parsley. (See § Strawberries, and § Parsley.)
Marestail (Horseweed, Conyza canadensis, Erigeron canadensis) is a common native weed here. Glyphosate-resistant marestail first appeared in the state in the Central Valley in 2005 and this resistance spread unusually rapidly through the southern Valley thereafter. Okada et al., 2013 finds several independent evolutionary events, and that these unrelated resistance alleles may have been passed along so quickly because C. canadensis can reproduce by selfing. Hairy Fleabane (Conyza bonariensis, Erigeron bonariensis) is one of the major § Weeds in peach here. The Okada group also studies glyphosate-resistant Hairy Fleabane. (See also § Glyphosate.)
In the Central Valley the most common weeds are cool-season grass weeds (Poaceae), thistles (Asteraceae), mustards (Brassicaceae), fiddleneck (Boraginaceae), warm-season grass weeds, warm-season Cyperaceae, amaranths (Amaranthaceae), morning glory (Convolvulaceae), and caltrop (Tribulus terrestris, Zygophyllaceae). Achmon et al., 2018 dramatically lowered seed bank viability, biomass, and density of all these weeds, and improved tomato yield using biosolarization using tomato and grape crop waste.Cape-ivy (Delairea odorata) is an invasive weed originally from the Drakensberg Mountains in South Africa and Swaziland. It was first observed here in 1892 and has since spread to every coast of the state, and into one coastal county of Oregon. Two organisms have been found in its native range which could be introduced here as controls, see § Digitivalva delaireae and § Cercospora delaireae.Sea Beet (Beta vulgaris subsp. maritima) and Beta macrocarpa are introduced weeds here. The allozyme analysis of Bartsch & Ellstrand 1999 shows free gene flow between these two and cultivated beet. Wild beet is only significant in small grains in Imperial, where dicamba and 2,4-D are necessary. See also § Small grains.
Palmer Amaranth (Amaranthus palmeri) was first discovered in San Diego County by Sereno Watson in 1876. It has since spread elsewhere, developed the worst multiresistance in the world, and become one of the most notorious crop weeds in the world. In California it is found in all but the northernmost counties.California wild radish (radish (Raphanus sativus) × Jointed charlock (R. raphanistrum)) has replaced all of its ancestral populations in the state.Di Tomaso and Healy 2007 find Chenopodium album requires years of continuous management for any significant seedbank reduction.
Pathogens
Xylella fastidiosa
X. fastidiosa was first discovered here by Newton B. Pierce (1856–1916) in 1892. It has ever since remained a constant pathogen of many crops here, including grape, almond, citrus, and oleander.
Pierce's Disease
History of PD
When European grapes were introduced to this area – Alta California – in the 1700s they died off repeatedly, primarily due to PD but also insect pests but the natives here had already been growing several native grape varieties, especially Vitis rotundifolia. In the opinion of Scortichini the combination of these two demonstrates PD's presence in the state from antiquity, that native grapes had coevolved with Xf, and that this is the reason for the repeated failures of viticulture here until mixed European/American varieties were tried. This unidentified problem known only as the California Vine Disease devastated 14,000 hectares (35,000 acres) of vineyard around Los Angeles in the 1880s and Pierce was sent by the USDA to investigate. In 1882 Pierce was able to identify that most of the failure was due to the disease, and less to the insects. For Pierce's contributions to its study it was renamed Pierce's Disease in 1939 by the state Department of Agriculture.Whatever the time of arrival in California and in North America, the current PD-causing Xff strains here show very recent divergence – in the mid-1900s. This is likely due to massive expansion – or even introduction – of the current Xff strains, replacing the pre-existing strains across the state as grape acreage expanded in the 1970s.PD was assumed to be viral until the 1970s. The first isolation and identification of the bacterium is variously credited either to two groups simultaneously in 1973, Goheen et al., 1973 and Hopkins & Mollenhauer 1973, or only to Davis, Purcell, and Thomson 1978.In 1997 the Blue-Green Sharpshooter (the primary PD vector) arrived here and the two have combined badly ever since. (See § Blue-Green Sharpshooter.) Only two years later, in 1999 together they inflicted over US$6 million in Southern California alone.The Glassy-winged sharpshooter (GWSS) is an invasive agricultural pest which arrived in Southern California in the 1990s and has since invaded the central part of the state as well. (See § Glassy-winged sharpshooter.) It is an unusually effective vector of PD.
PD today
The CDFA's Pierce's Disease Control Program coordinates response and research in the state.Alston et al., 2013 estimates that PD cost the state $92m in 2013 and over Tumber et al., 2014 estimates $104m annually in 2014. Burbank estimates the cost to be $100m annually by 2022.GWSS remains a common vector of PD and as such is a severe drag on the entire continent's wine grape and table grape pricing and supply. In the Napa- and Sonoma- Valleys and other such costal AVAs PD mostly occurs in hotspots adjascent to small water flows. These areas are defined by small streams and ornamental irrigation. These are favorable habitat for the BGSS. Lin et al., 2005 provides SSRs for differentiating between the state's various strains infecting grape and other crops and Lin et al., 2013 for grape-infecting strains here and in Texas.The BGSS is known to thrive in higher temperatures and PD epidemics are more severe in hotter years, and there is evidence that global warming is increasing BGSS transmission of PD here. Larger data sets are needed for stronger confirmation.There are two major divisions here, a lineage from Bakersfield and Santa Barbara and another from Temecula and the north. Within the northern areas there is lower gene flow, probably due to the Mayacamas Mountains.Zhang et al., 2011 compares a PD strain to EB92-1 and finds that they are surprisingly similar. EB92-1 is a biocontrol strain discovered by Hopkins in 1992 and published as Hopkins 2005. It is originally from elderberry (Sambucus spp.) and is highly persistent on grapevine but is asymptomatic. Zhang finds that the EB92-1 genome is a proper subset of the Temecula1 genome, lacking 11 missing genes, 10 of which are predicted to be pathogenicity factors.Vanhove et al., 2020 elucidates the current genetic situation of PD strains here, including population structure and their evolution.
Xf in stonefruit
Xf is also significant in stonefruit here, causing Almond leaf scorch disease and other diseases. (See also § Almonds.) Xf isolates CFBP8071 and M23 are common on almond here. Moralejo et al., 2019 shed some light on the European invasion of this pathogen. Their analysis shows these isolates have a 99.4% nucleotide identity with those on grape in the introduced range – and more generally, these isolates, a European cherry infection, and PD isolates from both areas have a high degree of relatedness. Chen et al., 2005 provides PCR primers, Lin et al., 2015 Simple Sequence Repeats (SSRs), and Chen et al., 2010 the first genome sequence for common almond-infecting strains here. Lin et al., 2005 provides SSRs for differentiating strains from almond from various other strains. While almond and plum develop leaf scorch (see also § Plums), Ledbetter & Rogers 2009 find that peach does not.Besides Pierce's Disease, the glassy-winged sharpshooter also vectors Xf among stonefruit and so its arrival threatens the world's almond supply (see § Glassy-winged sharpshooter and § Stonefruit).
Xf of citrus
Lin et al., 2005 provides Simple Sequence Repeats (SSRs) which distinguish California's Citrus Variegated Chlorosis (CVC) strains from almond, oleander, and PD strains.
Xf of oleander
Grebus et al., 1996 discovered the oleander bacterial leaf scorch syndrome. Lin et al., 2005 provides Simple Sequence Repeats (SSRs) which distinguish California's OBLS strains from almond, citrus, and PD strains. See also § Xylella fastidiosa subsp. sandyi.
Other Xf infections
Xf has many other hosts. Chitalpa tashkentensis is a common landscaping plant here and elsewhere in the southwest that is also a host. Randall et al., 2009 propose the subspecies tashke for these strains but it remains unclear whether this is a distinct subspecies and whether it endures in the overall evolutionary course of Xf strains. Hernandez-Martinez et al., 2007 find the subspecies sandyi causes disease of Oleander, Jacaranda spp., daylily, and magnolia.Raju 1983 finds Xf without symptoms on wild Carneocephala fulgida, Draeculacephala minerva, the Blue-Green Sharpshooter (BGSS, Graphocephala atropunctata, a vector), Helochara delta, Pagaronia tredecimpunctata, and Philaenus spumarius. Purcell & Saunders 1999 find infections in plants common to riparian zones here often are not motile in the host and spontaneously improve.
Botrytis cinerea
Various strains of gray mold (Botrytis cinerea) are a constant presence in the state's horticulture, especially afflicting strawberry and grape. (See § Strawberries and § Grapes.)
Fungicides are used multiple times per seasons and as a result resistance to almost every mode of action is common. Cosseboom et al., 2019 finds the proportion of resistant isolates increased within a single season in conventional but not organic. This shows that evolution is driven by usage in this crop.Alleles responsible include the erg27 alleles F196C, F412I, and F412S; bos1 alleles I356N, I365N, and I365S; the β-tubulin allele E198A (which Hu et al. 2016 finds has no fitness penalty); the cytb allele G143A (found by Veloukas et al., 2014 to have no fitness penalty); the mrr1 allele R351C and the mrr1 deletion event ΔL497 (also known as MDR1h and found only in Botrytis group S); and sdhB alleles H272R, H272Y, N230I, and P225F (the only one conferring resistance to isofetamid, also confers other resistance – to penthiopyrad, to fluopyram, and to boscalid – and associated by Hu et al., 2016 with resistance to fluxapyroxad). The analysis of Cosseboom et al., 2019 explains 93.8% of resistance by already-known alleles discovered by Banno et al., 2008, Ma et al., 2007, Grabke et al., 2013, Kretschmer et al., 2009, Dowling et al., 2017, Fernández-Ortuño et al., 2012, Amiri et al., 2014, and Yin et al., 2011, so very little is due to experimental error, unknown physiological effects, or undiscovered alleles. (See § Isofetamid, § Fluopyram, and § Boscalid.)
Organic strawberry ranches experience very active genetic transfer with conventional strawberry and as a result they have high proportions of resistance. Cosseboom et al., 2019 finds that conventional fields undergo within-season resistance evolution, while organic does not, demonstrating that they are indeed not using the fungicides they claim to not use, and that genetic transfer is not so rapid as to change the situation in a field that quickly.Ma & Michailides 2005 developed a microsatellite primed PCR (MP-PCR) for genetic diversity in this fungus, especially for populations in this state. Strawberry Botrytis leaf spot was first discovered in 2018 in Santa Maria and reported by Mansouripour & Holmes 2020. Bc was not previously known to produce a leaf spot phenotype in strawberry.In table grape there is a limit of 0.5% – table grapes can only be shipped if an allotment contains 0.5% or less of Bc-infected berries. For one treatment option for grape, see § Ozone.Shao et al., 2021 find azoxystrobin resistance is very common in this population. They find it is much more common than in China where azoxystrobin is almost unknown.B. cinerea is a common cause of postharvest losses in this industry. Due to the need for long shelf life in the California industry – because target markets include the whole continent – and the low moisture growing environments, Petrasch et al., 2021 find genomic selection for strawberry resistance is highly successful. In other environments and markets however this is not expected to be as simple.Most B. cinerea inoculum is introduced via aeroplankton. Significant protection against this is afforded by polytunnels. Daugovish & Larson 2009 find 84%–90% greater yield and 62%–140% greater marketable yield resulting in $14,000–$18,500 per hectare ($5,700–$7,500/acre) greater revenue due to polytunnels.Though gray mold elsewhere may be caused by both B. cinerea and B. pseudocinerea in California B. pseudocinerea is unknown on strawberry. However it is found on blueberry in the San Joaquin Valley.
Other pathogens of grape
Red Blotch Disease (caused by grapevine red blotch virus, GLRaV-3) costs the state $90 million annually. Losses in Napa County cost over $69,500 per hectare ($28,100/acre) across the likely 25-year lifetime of a vineyard, far higher than the $2,200 per hectare ($890/acre) estimated for eastern Washington.Al Rwahnih et al., 2013 discovered Grapevine Red Blotch-associated Virus (GRBaV) here, a DNA virus of this crop. This is one of the few discoveries of a DNA virus of this crop.Leafroll Disease (grapevine leafroll-associated virus 3) is also economically significant.The seriousness of Powdery Mildew (Uncinula necator) has been recognized since at least 1859 in the northern grape district. Newton B. Pierce was working in the area a few decades before his discovery of Pierce's Disease, and over the 1860s he watched U. necator spread to the south. Frederic Bioletti called it the only serious fungal disease the industry suffered from, and so it has remained ever since. The first case of U. necator demethylation inhibitor resistance (DMI resistance) was found in this state in 1980. This was only confirmed with Gubler et al., 1996's reanalysis of 1986 and 1990 samples however. Gubler finds that reduced rates prescribed by IPM are responsible for some of U. necator's triadimefon-, myclobutanil-, and fenarimol resistances.Phomopsis dieback (caused by Phomopsis viticola) is also a major trunk disease here. It is endemic to California.
Fusarium spp.
Fusarium is a genus of many species which are ubiquitous around the world, including here.
Fusarium Wilt of Strawberry (Fusarium oxysporum f. sp. fragariae) had only been seen once before, in Queensland, in one sample of Winks & Williams in 1966, until appearing again here in 2006 and identified by Koike et al. 2009. As of 2018 it has spread throughout the state. Henry et al., 2017 apply a Japanese PCR-based test of nuclear ribosomal intergenic spacer and elongation factor 1-α. They find such high similarity between the intended – Japanese – target populations and California populations that there are almost no false negatives. There are no false positives on other Fo types (i.e. those not pathogenic on strawberry). Although this suggests both populations have a common origin, that remains to be proven. The matching IGS and EF-1α sequences divide into three somatic compatibility groups. The vast majority fell into what they term SCG1, with a few of SCG2 and SCG3. SCG2 is always a false negative with this test which may indicate the entire group lacks the sequence in question. Although this proves to be a good test, a universally valid test may require finding a sequence specifically pertinent to virulence on the host and not other, incidental sequences. For genetic resistance see § Diseases of strawberry.
In early 2012 a previously unknown plant disease (an unidentified Fusarium) and vector (a Euwallacea, preliminarily termed the polyphagous shot hole borer, PSHB) were detected in Los Angeles and Orange Counties. This is especially a disease affecting avocado growers, but also other crops in this state and in its other invasive range, in Israel. In fact although PSHB was noticed on a black locust here in 2003, the associated Fusarium was only detected in 2012 on home avocado trees in LA County. (See § Avocados above.) As all Euwallacea in both their native and invasive ranges, this insect prefers to infest hosts in this area in locations which are stressful due to their unnaturalness, such as urban ornamental plantings and orchards.Fusarium Wilt of Lettuce (Fusarium oxysporum f. sp. lactucum) is common in the state.Fusarium oxysporum f. sp. vasinfectum is a disease of § Cotton. Kim et al., 2005 finds races 1, 2, 3, 4, 6 and 8 are present. They find race 4 arrived from India in 2003. Race 4 is so common here that varieties are screened for resistance before development or deployment. Unlike other strains it does not require a vector, a root-knot nematode. Race 4 isolates here are more pathogenic on Gossypium barbadense than on G. hirsutum.
Alternaria spp.
Various Alternaria spp. are significant fungal diseases here and often receive strobilurin, iprodione, azoxystrobin, and tebuconazole treatments. The Ma & Michaelides group has done extensive work on fungicide resistance, including in these pathogens. They have characterized resistance alleles (and in some cases produced molecular diagnostics methologies) for strobilurin-resistant-, iprodione-resistant-, and azoxystrobin-resistant- isolates.A. alternata has one of the widest host ranges of any fungal crop pathogen and so fungicides are commonly used. Almost all fruiting production of vulnerable crops must be fungicide-treated. Avenot, along with the Michailides group has found extensive boscalid resistance in a swathe from the center down into the central southern part of the state, especially Kern, Tulare, Fresno, and Madera. Although it is also commonly applied in Kings, no resistance is known there. (See § Boscalid.)
Black Heart is a common pomegranate disease worldwide. Out of the group of causative species, here Luo et al., 2017 find it is caused by A. alternata and A. arborescens.: 192 Michailides et al., 2008 finds the 'Wonderful' cultivar can suffer at a rate of 10% or more here.: 192 : S105 (See also § Pomegranates.)
Alternaria Rot of Fig is common here. It is caused by various species of this genus and relatives including: Ulocladium atrum, A. alternata, rarely other Alternaria spp., Dendryphiella vinosa, and Curvularia spp. Epicoccum purpurascens causes Alternaria of breba only. (The first, "breba" crop is not eaten but must be removed because it harbors inoculum of all of these microbes for the second, real crop.) See also § Fig.
Candidatus Phytoplasma
The Peach Yellow Leaf Roll phytoplasma (Candidatus Phytoplasma pyri) was first found here in the Sacramento Valley in 1948. The same pathogen may be the cause of Almond Brown Line and Decline.
Other pathogens
Phytophthora cactorum causes Strawberry crown rot, a common disease here.The Foliar Nematode (Aphelenchoides fragariae) and Northern Root Knot Nematode (Meloidogyne hapla) are the two most common strawberry nematode diseases here, although RKN is rarely seen by CalPoly Strawberry Center's diagnostic lab. Even rarer are the Root Lesion (Pratylenchus penetrans), Stem (Ditylenchus dipsaci), Dagger (Xiphinema americanum), Needle (Longidorus elongatus), Foliar (Aphelenchoides ritzemabosi and A. besseyi), and other Root Knot (Meloidogyne incognita and M. javanica) nematodes.Anthracnose occurs on peach, almond, and strawberry here. Colletotrichum acutatum – a soilborne pathogen – is a common cause. Natamycin is often used in strawberry. (See § Natamycin and § Strawberries.) Adaskaveg & Hartin 1997 identify the C. acutatum strains most frequently responsible in peach and almond. (See § Almonds and § Peaches.)
Monilinia fructicola and M. laxa are significant diseases of stonefruits here and benzimidazole is often used. The Ma & Michaelides group has done extensive work on fungicide resistance in these microorganisms. (See § Stonefruit and § Benzimidazole.)
Botryosphaeria dothidea is a significant fungal diseases here which often receives strobilurin, iprodione, azoxystrobin, and tebuconazole treatments. The Ma & Michaelides group has done extensive work on fungicide resistance, including in this pathogen. They have characterized resistance alleles of tebuconazole-resistant- isolates.Figs commonly suffer from Fig Smut here. Smut is caused by various Aspergillus spp. and relatives, including: Aspergillus niger, A. japonicus, A. carbonarius, A. flavus and A. parasiticus, Eurotium spp., A. tamarii, A. terreus, A. wentii, A. alliaceus, A. melleus, A. ochraceus, Emericella spp., A. carneus, A. fumigatus, A. sclerotiorum, and A. sydowii.Olives here suffer from a wide range of fungal diseases of the Botryosphaeriaceae family, as elsewhere in the world. Úrbez-Torres et al., 2013 finds Neofusicoccum mediterraneum and Diplodia mutila are the most virulent of them on Manzanillo and Sevillano. Moral et al., 2010 finds N. mediterraneum commonly causes a branch blight on several cultivars and D. seriata causes a branch canker. More specific controls than currently available are needed for N. mediterraneum in highly susceptible cultivars, and early harvest may be the only successful treatment for D. seriata. See § Olives.
Avian malaria is present in the state. Plasmodium relictum and its vectors C. quinquefasciatus, C. stigmatosoma, and C. tarsalis are most commonly responsible. The Herman group made the first reports of infection and vector competence in various hosts, in Herman 1951, Herman et al., 1954, and Reeves et al., 1954-II. Zoologix is based in the state and is a major provider of testing services here and for the entire country, including for avian malaria. See § Fowl for hosts and § Culex for vectors.
Stripe Rust (Puccinia striiformis f. sp. tritici, Pst) is believed to have been a continuous presence in the state since at least the 1770s because newspapers reported it at the time on wheat and wild grasses, and because stripe is more common today than leaf or stem rust.: 3 Barley, wheat, and various grasses are hosts here.: 9 (See § Barley and § Wheat.) Maccaferri et al. 2015 surveys the world's wheat and finds the Davis Pst populations are unusually heterogenous. That makes the Davis environment a useful experimental location for differentiating wheat genetic resistance.Stromatinia cepivora (garlic white rot) was identified in the San Francisco area in the 1930s and Gilroy in the 1940s. It continues to be a problem for garlic growers in the state.Leaf Spot of Caneberry (Mycosphaerella rubi, anamorph Septoria rubi) is common here. It is common on caneberry excluding raspberry, so erect and trailing blackberry, dewberry, olallieberry, and boysenberry. (See § Caneberry.) Treatment is simple, almost entirely relying on increased air circulation. No fungicides are registered but any fungicides for § Anthracnose and § Gray mold will work. Copper and lime sulfur work to some degree.This should be distinguished from Leaf Spot of Raspberry (Sphaerulina rubi, anamorph Cylindrosporium rubi). Although Leaf Spot of Raspberry is found here it is not common in California. (See § Raspberry.)
Verticillium Wilts (biovars of Verticillium dahliae) are found here as in any other ecozone. This includes Verticillium Wilt of Strawberry. Unlike every other known Vert Wilt of any other crop, this syndrome sometimes lacks any or any noticeable vascular discoloration of the crown. In strawberry, methyl bromide has historically been vital to prevention, and with phase out, this disease is of increasing concern. (See § Methyl bromide.) In all cases some fumigation is necessary, and if fumigation is not possible then solarization and/or rotation are the only remaining options. (See § Soil solarization.) Although drip fumigation (fumigation inline in the drip tape) is possible it does not produce the same results, especially failing to reach the shoulders of the beds. Nurseries universally use MB or MB + chloropicrin, while growers may use 1,3-D + chloropicrin, chloropicrin alone, metam sodium, or metam potassium. Note that MB+chloropicrin also provides an uncharacterized growth promoter effect in this crop.: 180 (See § Chloropicrin, § 1,3-dichloropropene, § Metam sodium, § Metam potassium.)
Strawberry Crinkle Virus (SCV, Strawberry crinkle cytorhabdovirus) is common here. Much of the fundamental research into SCV has been performed by a lab at UC Berkeley, including research on mechanical transmission.Frequent use has produced streptomycin resistance in Fire Blight (Erwinia amylovora) here, first found in the state's pear isolates by Miller & Schroth 1972. This disease is a problem of pomes, including pear. See § Streptomycin and § Pear.
Podosphaera aphanis is the cause of powdery mildew of strawberry. It has evolved strong resistance here. Palmer & Holmes 2021 find resistance to the majority of the most commonly applied ingredients in the Oxnard population.Armillaria Root Rot of peach is primarily caused by Armillaria mellea and A. solidipes here. A. gallica and A. mexicana are not thought to be common here, but are common in Mexico. (See § Peach.)
Tomato infectious chlorosis virus afflicts tomato here.: 180 See also § Tomato.
16SrIII-A is a phytoplasma of apricot here. Uyemoto et al., 1991 found it on apricot in California. See § Apricot.
Downy Mildew of Lettuce (Bremia lactucae) is common on lettuce here.: 156 The population in the country, and especially in this state, is unusual however: It is highly clonal.: 156 As a result, Brown et al., 2004 finds all isolates have the same metalaxyl resistance.: 156 See § Lettuce.
Kim et al., 2015 finds Penicillium digitatum isolates from citrus here have developed fludioxonil resistance, see § Fludioxonil. Thiabendazole (TBZ) is also commonly used in citrus here. Schmidt et al., 2006 find point mutations at codon 200 conferring TBZ resistance are common in California.Karnal Bunt (Tilletia indica, syn. Neovossia indica) has spread from Asia to this continent, and since 1996 has been found in this country.: 592 It is present in areas of this state, and Arizona and Texas.: 592 Corn Stunt Disease (Spiroplasma kunkelii) affects corn (maize, Zea mays) here.Sudden Oak Death (Phytophthora ramorum) is a widespread disease of oaks here and in Oregon, and is also found in Europe. It was first discovered in the 1990s on the Central Coast and was quickly found in Oregon as well. P. ramorum is of economic concern due to its infestation of Rubus and Vaccinium spp. All isolates here and throughout North America have been of the A2 mating type and genetic analysis suggests that although it was discovered here, the pathogen originated elsewhere. Although P. r. has also been found in England and Poland, Europe was not the source of the introduction and analysis shows that it too was introduced from an unknown third region. The multi-locus microsatellite typing (MLMT) analysis of Mascheretti et al. 2008 connects P. ramorum populations in nurseries and the wild. Mascheretti also finds three genotypes that are common among isolates here and are therefore probably the founding genotypes. See § Oak.
Phytophthora fragariae is a common disease of strawberry here. Weg 1997 shows that the resistance gene Rpf1 is in a gene-for-gene relationship. Mathey 2013 shows that Rpf1 is responsible for most resistance in the Watsonville and Oxnard environments and provides a DNA test to predict performance. No tests are available for Phytophthora fragariae var. fragariae. FPS recommends diagnosis by visual inspection.Apple mosaic virus (ApMV), Arabis mosaic virus (ArMV) and Tomato ringspot virus (ToRSV, an RNA virus) are common pathogens in strawberry.Raspberry ringspot virus is a common pathogen in California. Diagnosis is performed by cross infection of one of the alternate hosts which are herbaceous.Strawberry feather leaf virus is a common pathogen. Foundation Plant Services (FPS) offers testing via leaf graft.Hosts of Strawberry latent C virus include strawberry.Strawberry latent ringspot virus is diagnosed by cross infection of one of the alternate hosts which are herbaceous or by polymerase chain reaction (PCR).Strawberry leaf roll disease is a common pathogen.Strawberry mild yellow edge virus is diagnosed by cross infection of a test strawberry or by polymerase chain reaction (PCR).Hosts of Strawberry mottle virus include strawberry.Strawberry pallidosis associated virus is diagnosed by cross infection of a test strawberry or by polymerase chain reaction (PCR). It is one of several viuses causing Pallidosis Related Decline of Strawberry.: 68 Diagnosis of Strawberry vein banding virus is performed by cross infection of an herbaceous alternate host or by PCR.Tobacco necrosis virus is diagnosed by cross infection of an herbaceous alternate host. Biosecurity Australia considers its presence here cause for concern for Australian stonefruit growers. See also Stonefruit § Notes.
Hosts of Tobacco streak virus include strawberry.Diagnosis of Tomato black ring virus is performed by cross infection of an herbaceous alternate host.Tomato bushy stunt virus is a common pathogen of several horticultural crops here.Tomato ringspot virus is diagnosed by cross infection of an herbaceous alternate host. Hosts include strawberry.Hosts of Xanthomonas fragariae include strawberry.Aphelenchoides besseyi is a common horticultural nematode disease in California.Barley/Cereal yellow dwarf virus (B/CYDV) harms native bunchgrasses more than an invasive grass, aiding the invasion.Tomato necrotic dwarf virus is originally known from Imperial County.More than 1 virus is usually present in any strawberry plant which has progressed to symptomatic infection.Lettuce Mosaic Virus has caused severe losses at times up to 100%.: 282
Treatments
See Treatments in California agriculture.
Insurance
As with the entire country there is USDA subsidized crop insurance for the state. The Risk Management Agency provides various insurance schemes and deadlines by County and by crop.
Research, testing, and propagation material
Foundation Plant Services (FPS) is a part of UCD's College of Agriculture which serves the horticultural industries. FPS performs several services including testing for diseases (especially viral diseases), identifying varieties of unknown plant samples, and supplying cuttings (vegetative propagation material) from in situ individuals they maintain. They use a library of published Simple Sequence Repeats (SSRs) known to be relevant to the state's strawberry industry to identify those varieties specifically. California Seed & Plant Lab is an even more active, private molecular lab for the strawberry industry. CS&PL tests for clients here and around the world.California's experiences with the Vine mealybug, Glassy-winged sharp-shooter, and Pierce's disease have informed the process of creating geographic models for the spread of pests and diseases and their management in viticulture around the world.: 43 See § Glassy-winged sharpshooter and § Pierce's Disease.
As of 2022 Professor Juan Pablo Giraldo (UCR) has been making great progress since 2013 in nanomaterials applied to crops.The University of California is one of the two institutions claiming ownership of the CRISPR/Cas9 patent. This technique has great promise for genetic improvement of agricultural organisms. What ever the outcome of the patent litigation, a license from UC or the Broad Institute or both may be required to produce such products in the future.
Labor
The UC Davis Farm Labor program studies the state's farmworkers and provides information about them.The union organizing campaign of César Chávez and its impact on the industry has become a well known chapter in American history.: 63 His movement was also joined by artists such as famed theater and film director Luis Valdéz.: 92 Ecofeminists have supported the United Farm Workers' strikes including Chávez's Grape boycott, especially for their positions on pesticides.Despite the Immigration Reform and Control Act of 1986, Taylor & Thilmany 1992 found that the state's farmers did not reduce their hiring of illegal immigrants as farmworkers. Indeed, illegal immigration inflows increased in the 1990s.In addition to advising producers, the Statewide Integrated Pest Management program (UC IPM) began training farmworkers in 1988.: 382 By the late 1990s the large immigrant population had expanded the workforce, reduced wages and working time per worker.: 122 The reanalysis of Khan et al., 2004 finds that increased production of labor demanding crops increases agricultural labor demand, but does not necessarily have to because the same workers could have been hired to perform more hours. For many decades the Immigration and Naturalization Service (INS) and Customs and Border Protection (CBP) left farmworkers alone. INS and then CBP chose not to do any significant enforcement in agriculture, hospitality, or construction. Especially in the Northern Sacramento Valley and Southern San Joaquin Valley, farmworkers had risen to a high proportion of the population by 2013.Despite the passage of the California Agricultural Labor Relations Act of 1975, by 2012 unions were less popular with farmworkers than they had been before it was passed.The Borello 1988 decision classifies strawberry sharecroppers as independent contractors.Even when immigration was unrestricted, strawberry growers felt in 2017 that labor supply was still too tight. Farmers here were solid supporters of candidate and then President Trump, but were quickly surprised by the rhetoric of the administration due to the labor situation in the industry. As late as 2017 the illegal workforce was still projected to grow. A Pew Research Center analysis by Passel & Cohn expected continued lax enforcement to produce a continued population boom, including among California's agricultural workers. During and after the escalated deportation raids the lack of normal labor opened opportunities for others. Many high school students with farmworker family members quit school to join them in the fields.Some farmworkers here are not employed here all year but instead travel to other agricultural employment while California is in the off season.Although the entire tomato harvest was performed by laborers until recently, machines for harvest have been developed. The harvest of processing tomatoes is now entirely done by machines. The fresh tomato market still must be supplied by laborers however. See § Tomatoes. Just before the 2018 deportations began, in 2017 strawberry pickers earned ~$150/day or ~$18.75/hour.The right personal protective equipment (PPE) is required for fumigant applicators and those working nearby. Practices and training and provided by the state Department of Pesticide Regulation.As of 2019, 9% of all unauthorized immigrants in California are employed in this industry.Enforcement of state laws and regulations regarding farm labor and pesticides is the responsibility of the County Agricultural Commissioners.: 19 Harrison & Getz 2015 study organic fruit and vegetable workers here and find that working conditions generally improve with increasing farm size. Stockton et al., 2017's meta analysis shows workers were earning two-thirds of the average Californian due to a combination of low wages and underemployment.Hundreds of thousands of members of native Mexican ethnics are estimated to live in the state as farmworkers.The state Department of Industrial Relations (DIR) regulates and provides information for workers and employers. DIR's Labor Enforcement Task Force (LETF) enforces such requirements as overtime. UCANR and UCCE also provide information for employers' business planning.During 2021 field workers have been severely dissatisfied with working conditions. They complain of both suffering from the ongoing pandemic and from the financial impact of missing work.The California Strawberry Scholarship Program is operated by the California Strawberry Growers' Fund. As of 2022 it has awarded over $2 million for the schooling of strawberry pickers' children. The California Table Grape Growers have a similar program.Billikopf has repeatedly (Billikopf 1999, Billikopf 2001) found that improved working conditions improve worker productivity of strawberry pickers.Demand for workers in grape cultivation is greatest from late June to early November for the San Joaquin Valley, and mid-May to early July for the Coachella Valley.The Indigenous Farmworker Study is a program of the Indigenous Program of California Rural Legal Assistance which collects information on natives of Mexico employed in agriculture here.Enforcement of labor laws has had little success in improving working conditions.Richards 2018 finds chronic labor shortage in some sectors.Goodhue et al. 2011 find Spotted Wing Drosophila § Notes imposes high labor costs in Strawberry § Notes and Raspberry § Notes.Guthman 2017 finds many strawberry growers advocate for soil fumigants as a way to maintain employment for strawberry field workers.The 2022–2023 California floods devastated strawberry, other berries and greens cultivation areas, and impacted worker housing.
See also
Agriculture in the United States
References
External links
California Agricultural Statistics Review 2017-2018 from the California Department of Food and Agriculture
"Home". UC Davis Cost Studies. February 28, 2022. Retrieved June 18, 2022.
"California Grown". California Grown. California Department of Food and Agriculture. April 20, 2020. Retrieved July 6, 2022. |
ecosystem service | Ecosystem services are the many and varied benefits to humans provided by the natural environment and healthy ecosystems. Such ecosystems include, for example, agroecosystems, forest ecosystem, grassland ecosystems, and aquatic ecosystems. These ecosystems, functioning in healthy relationships, offer such things as natural pollination of crops, clean air, extreme weather mitigation, and human mental and physical well-being. Collectively, these benefits are becoming known as ecosystem services, and are often integral to the provision of food, the provisioning of clean drinking water, the decomposition of wastes, and the resilience and productivity of food ecosystems.
While scientists and environmentalists have discussed ecosystem services implicitly for decades, the Millennium Ecosystem Assessment (MA) in the early 2000s popularized this concept. There, ecosystem services are grouped into four broad categories: provisioning, such as the production of food and water; regulating, such as the control of climate and disease; supporting, such as nutrient cycles and oxygen production; and cultural, such as spiritual and recreational benefits. To help inform decision-makers, many ecosystem services are being evaluated to draw equivalent comparisons to human-engineered infrastructure and services.
Estuarine and coastal ecosystems are marine ecosystems that perform the four categories of ecosystem services in a variety of ways. For example, their regulating services include climate regulation and buffer zones. Furthermore, their provisioning services include marine products and genetic resources. Their cultural services include recreation and tourism. Finally, their supporting services include nutrient cycling and primary production.
Definition
Ecosystem services or eco-services are defined as the goods and services provided by ecosystems to humans. Per the 2006 Millennium Ecosystem Assessment (MA), ecosystem services are "the benefits people obtain from ecosystems". The MA also delineated the four categories of ecosystem services—supporting, provisioning, regulating, and cultural—discussed below. In simple terms provision of food materials, water, timber, fibers, and the provision of medications.By 2010, there had evolved various working definitions and descriptions of ecosystem services in the literature. To prevent double-counting in ecosystem services audits, for instance, The Economics of Ecosystems and Biodiversity (TEEB) replaced "Supporting Services" in the MA with "Habitat Services" and "ecosystem functions", defined as "a subset of the interactions between ecosystem structure and processes that underpin the capacity of an ecosystem to provide goods and services".
Categories
Four different types of ecosystem services have been distinguished by the scientific body: regulating services, provisioning services, cultural services and supporting services. An ecosystem does not necessarily offer all four types of services simultaneously; but given the intricate nature of any ecosystem, it is usually assumed that humans benefit from a combination of these services. The services offered by diverse types of ecosystems (forests, seas, coral reefs, mangroves, etc.) differ in nature and in consequence. In fact, some services directly affect the livelihood of neighboring human populations (such as fresh water, food or aesthetic value, etc.) while other services affect general environmental conditions by which humans are indirectly impacted (such as climate change, erosion regulation or natural hazard regulation, etc.).The Millennium Ecosystem Assessment report 2005 defined ecosystem services as benefits people obtain from ecosystems and distinguishes four categories of ecosystem services, where the so-called supporting services are regarded as the basis for the services of the other three categories.
Regulating services
Regulating services are the "benefits obtained from the regulation of ecosystem processes". These include:
Purification of water and air
Carbon sequestration and climate regulation
Waste decomposition and detoxification
Predation regulates prey populations
Biological control pest and disease control
Pollination
Disturbance regulation, i.e. flood protection
Water purification
An example for water purification as an ecosystem service is as follows: In New York City, where the quality of drinking water had fallen below standards required by the U.S. Environmental Protection Agency (EPA), authorities opted to restore the polluted Catskill Watershed that had previously provided the city with the ecosystem service of water purification. Once the input of sewage and pesticides to the watershed area was reduced, natural abiotic processes such as soil absorption and filtration of chemicals, together with biotic recycling via root systems and soil microorganisms, water quality improved to levels that met government standards. The cost of this investment in natural capital was estimated at $1–1.5 billion, which contrasted dramatically with the estimated $6–8 billion cost of constructing a water filtration plant plus the $300 million annual running costs.
Pollination
Pollination of crops by bees is required for 15–30% of U.S. food production; most large-scale farmers import non-native honey bees to provide this service. A 2005 study reported that in California's agricultural region, it was found that wild bees alone could provide partial or complete pollination services or enhance the services provided by honey bees through behavioral interactions. However, intensified agricultural practices can quickly erode pollination services through the loss of species. The remaining species are unable to compensate this. The results of this study also indicate that the proportion of chaparral and oak-woodland habitat available for wild bees within 1–2 km of a farm can stabilize and enhance the provision of pollination services. The presence of such ecosystem elements functions almost like an insurance policy for farmers.
Buffer zones
Coastal and estuarine ecosystems act as buffer zones against natural hazards and environmental disturbances, such as floods, cyclones, tidal surges and storms. The role they play is to "[absorb] a portion of the impact and thus [lessen] its effect on the land". Wetlands (which include saltwater swamps, salt marshes, ...) and the vegetation it supports – trees, root mats, etc. – retain large amounts of water (surface water, snowmelt, rain, groundwater) and then slowly releases them back, decreasing the likeliness of floods. Mangrove forests protect coastal shorelines from tidal erosion or erosion by currents; a process that was studied after the 1999 cyclone that hit India. Villages that were surrounded with mangrove forests encountered less damages than other villages that weren't protected by mangroves.
Provisioning services
Provisioning services consist of all "the products obtained from ecosystems". The following services are also known as ecosystem goods:
food (including seafood and game), crops, wild foods, and spices
raw materials (including lumber, skins, fuelwood, organic matter, fodder, and fertilizer)
genetic resources (including crop improvement genes, and health care)
biogenic minerals
medicinal resources (including pharmaceuticals, chemical models, and test and assay organisms)
energy (hydropower, biomass fuels)
ornamental resources (including fashion, handicrafts, jewelry, pets, worship, decoration, and souvenirs like furs, feathers, ivory, orchids, butterflies, aquarium fish, shells, etc.)
Forest products
Forests produce a large type and variety of timber products, including roundwood, sawnwood, panels, and engineered wood, e.g., cross-laminated timber, as well as pulp and paper. Besides the production of timber, forestry activities may also result in products that undergo little processing, such as fire wood, charcoal, wood chips and roundwood used in an unprocessed form. Global production and trade of all major wood-based products recorded their highest ever values in 2018. Production, imports and exports of roundwood, sawnwood, wood-based panels, wood pulp, wood charcoal and pellets reached their maximum quantities since 1947 when FAO started reporting global forest product statistics. In 2018, growth in production of the main wood-based product groups ranged from 1 percent (woodbased panels) to 5 percent (industrial roundwood). The fastest growth occurred in the Asia-Pacific, Northern American and European regions, likely due to positive economic growth in these areas. Over 40% of the territory in the European Union is covered by forests. This region has grown via afforestation by roughly 0.4% year in recent decades. In the European Union, just 60% of the yearly forest growth is harvested.Forests also provide non-wood forest products, including fodder, aromatic and medicinal plants, and wild foods. Worldwide, around 1 billion people depend to some extent on wild foods such as wild meat, edible insects, edible plant products, mushrooms and fish, which often contain high levels of key micronutrients. The value of forest foods as a nutritional resource is not limited to low- and middle-income countries; more than 100 million people in the European Union (EU) regularly consume wild food. Some 2.4 billion people – in both urban and rural settings – use wood-based energy for cooking.
Marine products and raw materials
Marine ecosystems provide people with: wild & cultured seafood, fresh water, fiber & fuel and biochemical & genetic resources.Humans consume a large number of products originating from the seas, whether as a nutritious product or for use in other sectors: "More than one billion people worldwide, or one-sixth of the global population, rely on fish as their main source of animal protein. In 2000, marine and coastal fisheries accounted for 12 per cent of world food production".
Biochemical and genetic resources from marine organisms
Biochemical resources are compounds extracted from marine organisms for use in medicines, pharmaceuticals, cosmetics, and other biochemical products. Genetic resources are the genetic information found in marine organisms that would later on be used for animal and plant breeding and for technological advances in the biological field. These resources are either directly taken out from an organism – such as fish oil as a source of omega3 –, or used as a model for innovative man-made products: "such as the construction of fiber optics technology based on the properties of sponges. ... Compared to terrestrial products, marine-sourced products tend to be more highly bioactive, likely due to the fact that marine organisms have to retain their potency despite being diluted in the surrounding sea-water".
Cultural services
Cultural services relate to the non-material world, as they benefit the benefit recreational, aesthetic, cognitive and spiritual activities, which are not easily quantifiable in monetary terms. They include:
cultural (including use of nature as motif in books, film, painting, folklore, national symbols, advertising, etc.)
spiritual and historical (including use of nature for religious or heritage value or natural)
recreational experiences (including ecotourism, outdoor sports, and recreation)
science and education (including use of natural systems for school excursions, and scientific discovery)
therapeutic (including eco-therapy, social forestry and animal assisted therapy)As of 2012, there was a discussion as to how the concept of cultural ecosystem services could be operationalized, how landscape aesthetics, cultural heritage, outdoor recreation, and spiritual significance to define can fit into the ecosystem services approach. who vote for models that explicitly link ecological structures and functions with cultural values and benefits. Likewise, there has been a fundamental critique of the concept of cultural ecosystem services that builds on three arguments:
Pivotal cultural values attaching to the natural/cultivated environment rely on an area's unique character that cannot be addressed by methods that use universal scientific parameters to determine ecological structures and functions.
If a natural/cultivated environment has symbolic meanings and cultural values the object of these values are not ecosystems but shaped phenomena like mountains, lakes, forests, and, mainly, symbolic landscapes.
Cultural values do result not from properties produced by ecosystems but are the product of a specific way of seeing within the given cultural framework of symbolic experience.The Common International Classification of Ecosystem Services (CICES) is a classification scheme developed to accounting systems (like National counts etc.), in order to avoid double-counting of Supporting Services with others Provisioning and Regulating Services.
Recreation and tourism
Sea sports are very popular among coastal populations: surfing, snorkeling, whale watching, kayaking, recreational fishing ... a lot of tourists also travel to resorts close to the sea or rivers or lakes to be able to experience these activities, and relax near the water. The United Nations Sustainable Development Goal 14 also has targets aimed at enhancing the use of ecosystem services for sustainable tourism especially in Small Island Developing States.
Supporting services
Supporting services are the services that allow for the other ecosystem services to be present. They have indirect impacts on humans that last over a long period of time. Several services can be considered as being both supporting services and regulating/cultural/provisioning services.Supporting services include for example nutrient cycling, primary production, soil formation, habitat provision. These services make it possible for the ecosystems to continue providing services such as food supply, flood regulation, and water purification.
Nutrient cycling
Nutrient cycling is the movement of nutrients through an ecosystem by biotic and abiotic processes. The ocean is a vast storage pool for these nutrients, such as carbon, nitrogen and phosphorus. The nutrients are absorbed by the basic organisms of the marine food web and are thus transferred from one organism to the other and from one ecosystem to the other. Nutrients are recycled through the life cycle of organisms as they die and decompose, releasing the nutrients into the neighboring environment. "The service of nutrient cycling eventually impacts all other ecosystem services as all living things require a constant supply of nutrients to survive".
Primary production
Primary production refers to the production of organic matter, i.e., chemically bound energy, through processes such as photosynthesis and chemosynthesis. The organic matter produced by primary producers forms the basis of all food webs. Further, it generates oxygen (O2), a molecule necessary to sustain animals and humans. On average, a human consumes about 550 liter of oxygen per day, whereas plants produce 1,5 liter of oxygen per 10 grams of growth.
Ecology
Understanding of ecosystem services requires a strong foundation in ecology, which describes the underlying principles and interactions of organisms and the environment. Since the scales at which these entities interact can vary from microbes to landscapes, milliseconds to millions of years, one of the greatest remaining challenges is the descriptive characterization of energy and material flow between them. For example, the area of a forest floor, the detritus upon it, the micro organisms in the soil, the soil biodiversity, and characteristics of the soil itself will all contribute to the abilities of that forest for providing ecosystem services like carbon sequestration, water purification, and erosion prevention to other areas within the watershed. Note that it is often possible for multiple services to be bundled together and when benefits of targeted objectives are secured, there may also be ancillary benefits—the same forest may provide habitat for other organisms as well as human recreation, which are also ecosystem services.The complexity of Earth's ecosystems poses a challenge for scientists as they try to understand how relationships are interwoven among organisms, processes and their surroundings. As it relates to human ecology, a suggested research agenda for the study of ecosystem services includes the following steps:
identification of ecosystem service providers (ESPs)—species or populations that provide specific ecosystem services—and characterization of their functional roles and relationships;
determination of community structure aspects that influence how ESPs function in their natural landscape, such as compensatory responses that stabilize function and non-random extinction sequences which can erode it;
assessment of key environmental (abiotic) factors influencing the provision of services;
measurement of the spatial and temporal scales ESPs and their services operate on.Recently, a technique has been developed to improve and standardize the evaluation of ESP functionality by quantifying the relative importance of different species in terms of their efficiency and abundance. Such parameters provide indications of how species respond to changes in the environment (i.e. predators, resource availability, climate) and are useful for identifying species that are disproportionately important at providing ecosystem services. However, a critical drawback is that the technique does not account for the effects of interactions, which are often both complex and fundamental in maintaining an ecosystem and can involve species that are not readily detected as a priority. Even so, estimating the functional structure of an ecosystem and combining it with information about individual species traits can help us understand the resilience of an ecosystem amidst environmental change.Many ecologists also believe that the provision of ecosystem services can be stabilized with biodiversity. Increasing biodiversity also benefits the variety of ecosystem services available to society. Understanding the relationship between biodiversity and an ecosystem's stability is essential to the management of natural resources and their services. The concept of ecological redundancy is sometimes referred to as functional compensation and assumes that more than one species performs a given role within an ecosystem.
Estuarine and coastal ecosystem services
Estuarine and marine coastal ecosystems are both marine ecosystems. Together, these ecosystems perform the four categories of ecosystem services in a variety of ways: "Regulating services" include climate regulation as well as waste treatment and disease regulation and buffer zones. The "provisioning services" include forest products, marine products, fresh water, raw materials, biochemical and genetic resources. "Cultural services" of coastal ecosystems include inspirational aspects, recreation and tourism, science and education. "Supporting services" of coastal ecosystems include nutrient cycling, biologically mediated habitats and primary production.
Coasts and their adjacent areas on and offshore are an important part of a local ecosystem. The mixture of fresh water and salt water (brackish water) in estuaries provides many nutrients for marine life. Salt marshes, mangroves and beaches also support a diversity of plants, animals and insects crucial to the food chain. The high level of biodiversity creates a high level of biological activity, which has attracted human activity for thousands of years. Coasts also create essential material for organisms to live by, including estuaries, wetland, seagrass, coral reefs, and mangroves. Coasts provide habitats for migratory birds, sea turtles, marine mammals, and coral reefs.
Economics
There are questions regarding the environmental and economic values of ecosystem services. Some people may be unaware of the environment in general and humanity's interrelatedness with the natural environment, which may cause misconceptions. Although environmental awareness is rapidly improving in our contemporary world, ecosystem capital and its flow are still poorly understood, threats continue to impose, and we suffer from the so-called 'tragedy of the commons'. Many efforts to inform decision-makers of current versus future costs and benefits now involve organizing and translating scientific knowledge to economics, which articulate the consequences of our choices in comparable units of impact on human well-being. An especially challenging aspect of this process is that interpreting ecological information collected from one spatial-temporal scale does not necessarily mean it can be applied at another; understanding the dynamics of ecological processes relative to ecosystem services is essential in aiding economic decisions. Weighting factors such as a service's irreplaceability or bundled services can also allocate economic value such that goal attainment becomes more efficient.
The economic valuation of ecosystem services also involves social communication and information, areas that remain particularly challenging and are the focus of many researchers. In general, the idea is that although individuals make decisions for any variety of reasons, trends reveal the aggregated preferences of a society, from which the economic value of services can be inferred and assigned. The six major methods for valuing ecosystem services in monetary terms are:
Avoided cost: Services allow society to avoid costs that would have been incurred in the absence of those services (e.g. waste treatment by wetland habitats avoids health costs)
Replacement cost: Services could be replaced with man-made systems (e.g. restoration of the Catskill Watershed cost less than the construction of a water purification plant)
Factor income: Services provide for the enhancement of incomes (e.g. improved water quality increases the commercial take of a fishery and improves the income of fishers)
Travel cost: Service demand may require travel, whose costs can reflect the implied value of the service (e.g. value of ecotourism experience is at least what a visitor is willing to pay to get there)
Hedonic pricing: Service demand may be reflected in the prices people will pay for associated goods (e.g. coastal housing prices exceed that of inland homes)
Contingent valuation: Service demand may be elicited by posing hypothetical scenarios that involve some valuation of alternatives (e.g. visitors willing to pay for increased access to national parks)A peer-reviewed study published in 1997 estimated the value of the world's ecosystem services and natural capital to be between US$16 and $54 trillion per year, with an average of US$33 trillion per year. However, Salles (2011) indicated 'The total value of biodiversity is infinite, so having debate about what is the total value of nature is actually pointless because we can't live without it'.As of 2012, many companies were not fully aware of the extent of their dependence and impact on ecosystems and the possible ramifications. Likewise, environmental management systems and environmental due diligence tools are more suited to handle "traditional" issues of pollution and natural resource consumption. Most focus on environmental impacts, not dependence. Several tools and methodologies can help the private sector value and assess ecosystem services, including Our Ecosystem, the 2008 Corporate Ecosystem Services Review, the Artificial Intelligence for Environment & Sustainability (ARIES) project from 2007, the Natural Value Initiative (2012) and InVEST (Integrated Valuation of Ecosystem Services & Tradeoffs, 2012)
Payments
Examples for economic cost comparisons
The US military has funded research through the Pacific Northwest National Laboratory, which claims that Department of Defense lands and military installations provide substantial ecosystem services to local communities, including benefits to carbon storage, resiliency to climate, and endangered species habitat. As of 2020, the Eglin Air Force Base is said to provide about $110 million in ecosystem services per year, $40 million more than if no base was present.
In 2016, it was counted that to plant 15 000 ha new woodland in the UK, considering only the value of timber, it would cost £79 000 000, which is more than the benefit of £65 000 000. If, however, all other benefits the trees in lowland could provide (like soil stabilization, wind deflection, recreation, food production, air purification, carbon storage, wildlife habitat, fuel production, cooling, flood prevention) were included, the costs will increase due to displacing the profitable farmland (would be around £231 000 000) but would be overweight by benefits of £546 000 000.
Management and policy
Although monetary pricing continues with respect to the valuation of ecosystem services, the challenges in policy implementation and management are significant and considerable. The administration of common pool resources has been a subject of extensive academic pursuit. From defining the problems to finding solutions that can be applied in practical and sustainable ways, there is much to overcome. Considering options must balance present and future human needs, and decision-makers must frequently work from valid but incomplete information. Existing legal policies are often considered insufficient since they typically pertain to human health-based standards that are mismatched with necessary means to protect ecosystem health and services. In 2000, to improve the information available, the implementation of an Ecosystem Services Framework has been suggested (ESF), which integrates the biophysical and socio-economic dimensions of protecting the environment and is designed to guide institutions through multidisciplinary information and jargon, helping to direct strategic choices.
As of 2005 Local to regional collective management efforts were considered appropriate for services like crop pollination or resources like water. Another approach that has become increasingly popular during the 1990s is the marketing of ecosystem services protection. Payment and trading of services is an emerging worldwide small-scale solution where one can acquire credits for activities such as sponsoring the protection of carbon sequestration sources or the restoration of ecosystem service providers. In some cases, banks for handling such credits have been established and conservation companies have even gone public on stock exchanges, defining an evermore parallel link with economic endeavors and opportunities for tying into social perceptions. However, crucial for implementation are clearly defined land rights, which are often lacking in many developing countries. In particular, many forest-rich developing countries suffering deforestation experience conflict between different forest stakeholders. In addition, concerns for such global transactions include inconsistent compensation for services or resources sacrificed elsewhere and misconceived warrants for irresponsible use. As of 2001, another approach focused on protecting ecosystem service biodiversity hotspots. Recognition that the conservation of many ecosystem services aligns with more traditional conservation goals (i.e. biodiversity) has led to the suggested merging of objectives for maximizing their mutual success. This may be particularly strategic when employing networks that permit the flow of services across landscapes, and might also facilitate securing the financial means to protect services through a diversification of investors.For example, as of 2013, there had been interest in the valuation of ecosystem services provided by shellfish production and restoration. A keystone species, low in the food chain, bivalve shellfish such as oysters support a complex community of species by performing a number of functions essential to the diverse array of species that surround them. There is also increasing recognition that some shellfish species may impact or control many ecological processes; so much so that they are included on the list of "ecosystem engineers"—organisms that physically, biologically or chemically modify the environment around them in ways that influence the health of other organisms. Many of the ecological functions and processes performed or affected by shellfish contribute to human well-being by providing a stream of valuable ecosystem services over time by filtering out particulate materials and potentially mitigating water quality issues by controlling excess nutrients in the water.
As of 2018, the concept of ecosystem services had not been properly implemented into international and regional legislation yet.Notwithstanding, the United Nations Sustainable Development Goal 15 has a target to ensure the conservation, restoration, and sustainable use of ecosystem services.An estimated $125 trillion to $140 trillion is added to the economy each year by all ecosystem services.
Ecosystem-based adaptation (EbA)
Ecosystem-based adaptation or EbA is a strategy for community development and environmental management that seeks to use an ecosystem services framework to help communities adapt to the effects of climate change. The Convention on Biological Diversity defines it as "the use of biodiversity and ecosystem services to help people adapt to the adverse effects of climate change", which includes the use of "sustainable management, conservation and restoration of ecosystems, as part of an overall adaptation strategy that takes into account the multiple social, economic and cultural co-benefits for local communities".In 2001, the Millennium Ecosystem Assessment announced that humanity's impact on the natural world was increasing to levels never before seen, and that the degradation of the planet's ecosystems would become a major barrier to achieving the Millennium Development Goals. In recognition of this fact, Ecosystem-Based Adaptation sought to use the restoration of ecosystems as a stepping-stone to improve the quality of life in communities experiencing the impacts of climate change. Specifically, it involved the restoration of such ecosystems that provide food and water and protection from storm surges and flooding. EbA interventions combine elements of both climate change mitigation and adaptation to global warming to help address the community's current and future needs.Collaborative planning between scientists, policy makers, and community members is an essential element of Ecosystem-Based Adaptation. By drawing on the expertise of outside experts and local residents alike, EbA seeks to develop unique solutions to unique problems, rather than simply replicating past projects.
Land use change decisions
Ecosystem services decisions require making complex choices at the intersection of ecology, technology, society, and the economy. The process of making ecosystem services decisions must consider the interaction of many types of information, honor all stakeholder viewpoints, including regulatory agencies, proposal proponents, decision makers, residents, NGOs, and measure the impacts on all four parts of the intersection. These decisions are usually spatial, always multi-objective, and based on uncertain data, models, and estimates. Often it is the combination of the best science combined with the stakeholder values, estimates and opinions that drive the process.One analytical study modeled the stakeholders as agents to support water resource management decisions in the Middle Rio Grande basin of New Mexico. This study focused on modeling the stakeholder inputs across a spatial decision, but ignored uncertainty. Another study used Monte Carlo methods to exercise econometric models of landowner decisions in a study of the effects of land-use change. Here the stakeholder inputs were modeled as random effects to reflect the uncertainty. A third study used a Bayesian decision support system to both model the uncertainty in the scientific information Bayes Nets and to assist collecting and fusing the input from stakeholders. This study was about siting wave energy devices off the Oregon Coast, but presents a general method for managing uncertain spatial science and stakeholder information in a decision making environment. Remote sensing data and analyses can be used to assess the health and extent of land cover classes that provide ecosystem services, which aids in planning, management, monitoring of stakeholders' actions, and communication between stakeholders.In Baltic countries scientists, nature conservationists and local authorities are implementing integrated planning approach for grassland ecosystems. They are developing an integrated planning tool based on GIS (geographic information system) technology and put online that will help for planners to choose the best grassland management solution for concrete grassland. It will look holistically at the processes in the countryside and help to find best grassland management solutions by taking into account both natural and socioeconomic factors of the particular site.
History
While the notion of human dependence on Earth's ecosystems reaches to the start of Homo sapiens' existence, the term 'natural capital' was first coined by E. F. Schumacher in 1973 in his book Small is Beautiful. Recognition of how ecosystems could provide complex services to humankind date back to at least Plato (c. 400 BC) who understood that deforestation could lead to soil erosion and the drying of springs. Modern ideas of ecosystem services probably began when Marsh challenged in 1864 the idea that Earth's natural resources are unbounded by pointing out changes in soil fertility in the Mediterranean. It was not until the late 1940s that three key authors—Henry Fairfield Osborn, Jr, William Vogt, and Aldo Leopold—promoted recognition of human dependence on the environment.
In 1956, Paul Sears drew attention to the critical role of the ecosystem in processing wastes and recycling nutrients. In 1970, Paul Ehrlich and Rosa Weigert called attention to "ecological systems" in their environmental science textbook and "the most subtle and dangerous threat to man's existence ... the potential destruction, by man's own activities, of those ecological systems upon which the very existence of the human species depends".
The term "environmental services" was introduced in a 1970 report of the Study of Critical Environmental Problems, which listed services including insect pollination, fisheries, climate regulation and flood control. In following years, variations of the term were used, but eventually 'ecosystem services' became the standard in scientific literature.The ecosystem services concept has continued to expand and includes socio-economic and conservation objectives, which are discussed below. A history of the concepts and terminology of ecosystem services as of 1997, can be found in Daily's book "Nature's Services: Societal Dependence on Natural Ecosystems".While Gretchen Daily's original definition distinguished between ecosystem goods and ecosystem services, Robert Costanza and colleagues' later work and that of the Millennium Ecosystem Assessment lumped all of these together as ecosystem services.
See also
References
Sources
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO (license statement/permission). Text taken from The State of the World’s Forests 2020. Forests, biodiversity and people – In brief, FAO & UNEP, FAO & UNEP.
This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO (license statement/permission). Text taken from Global Forest Resources Assessment 2020 – Key findings, FAO, FAO.
External links
Millennium Ecosystem Assessment
Earth Economics
The Economics of Ecosystems and Biodiversity
Ecosystem Marketplace
Water Evaluation And Planning (WEAP) system for modeling impacts on aquatic ecosystem services
GecoServ – Gulf of Mexico Ecosystem Services Valuation Database (includes studies from all over the world, but only coastal ecosystems relevant to the Gulf of Mexico) |
planetary boundaries | Planetary boundaries are a framework to describe limits to the impacts of human activities on the Earth system. Beyond these limits, the environment may not be able to self-regulate anymore. This would mean the Earth system would leave the period of stability of the Holocene, in which human society developed. The framework is based on scientific evidence that human actions, especially those of industrialized societies since the Industrial Revolution, have become the main driver of global environmental change. According to the framework, "transgressing one or more planetary boundaries may be deleterious or even catastrophic due to the risk of crossing thresholds that will trigger non-linear, abrupt environmental change within continental-scale to planetary-scale systems."The normative component of the framework is that human societies have been able to thrive under the comparatively stable climatic and ecological conditions of the Holocene. To the extent that these Earth system process boundaries have not been crossed, they mark the "safe zone" for human societies on the planet. Proponents of the planetary boundary framework propose returning to this environmental and climatic system; as opposed to human science and technology deliberately creating a more beneficial climate. The concept doesn't address how humans have massively altered ecological conditions to better suit themselves. The climatic and ecological Holocene this framework considers as a "safe zone" doesn't involve massive industrial farming. So this framework begs a reassessment of how to feed modern populations.
The concept has since become influential in the international community (e.g. United Nations Conference on Sustainable Development), including governments at all levels, international organizations, civil society and the scientific community. The framework consists of nine global change processes. In 2009, according to Rockström and others, three boundaries were already crossed (biodiversity loss, climate change and nitrogen cycle), while others were in imminent danger of being crossed.In 2015, several of the scientists in the original group published an update, bringing in new co-authors and new model-based analysis. According to this update, four of the boundaries were crossed: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen). The scientists also changed the name of the boundary "Loss of biodiversity" to "Change in biosphere integrity" to emphasize that not only the number of species but also the functioning of the biosphere as a whole is important for Earth system stability. Similarly, the "Chemical pollution" boundary was renamed to "Introduction of novel entities", widening the scope to consider different kinds of human-generated materials that disrupt Earth system processes.
In 2022, based on the available literature, the introduction of novel entities was concluded to be the 5th transgressed planetary boundary. Freshwater change was concluded to be the 6th transgressed planetary boundary in 2023.
Framework overview and principles
The basic idea of the Planetary Boundaries framework is that maintaining the observed resilience of the Earth system in the Holocene is a precondition for humanity's pursuit of long-term social and economic development. The Planetary Boundaries framework contributes to an understanding of global sustainability because it brings a planetary scale and a long timeframe into focus.The framework described nine "planetary life support systems" essential for maintaining a "desired Holocene state", and attempted to quantify how far seven of these systems had been pushed already. Boundaries were defined to help define a "safe space for human development", which was an improvement on approaches aiming at minimizing human impacts on the planet.The framework is based on scientific evidence that human actions, especially those of industrialized societies since the Industrial Revolution, have become the main driver of global environmental change. According to the framework, "transgressing one or more planetary boundaries may be deleterious or even catastrophic due to the risk of crossing thresholds that will trigger non-linear, abrupt environmental change within continental-scale to planetary-scale systems." The framework consists of nine global change processes. In 2009, two boundaries were already crossed, while others were in imminent danger of being crossed. Later estimates indicated that three of these boundaries—climate change, biodiversity loss, and the biogeochemical flow boundary—appear to have been crossed.
The scientists outlined how breaching the boundaries increases the threat of functional disruption, even collapse, in Earth's biophysical systems in ways that could be catastrophic for human wellbeing. While they highlighted scientific uncertainty, they indicated that breaching boundaries could "trigger feedbacks that may result in crossing thresholds that drastically reduce the ability to return within safe levels". The boundaries were "rough, first estimates only, surrounded by large uncertainties and knowledge gaps" which interact in complex ways that are not yet well understood.The planetary boundaries framework lays the groundwork for a shifting approach to governance and management, away from the essentially sectoral analyses of limits to growth aimed at minimizing negative externalities, toward the estimation of the safe space for human development. Planetary boundaries demarcate, as it were, the "planetary playing field" for humanity if major human-induced environmental change on a global scale is to be avoided.
Authors
The authors of this framework was a group of Earth System and environmental scientists in 2009 led by Johan Rockström from the Stockholm Resilience Centre and Will Steffen from the Australian National University. They collaborated with 26 leading academics, including Nobel laureate Paul Crutzen, Goddard Institute for Space Studies climate scientist James Hansen, oceanographer Katherine Richardson, geographer Diana Liverman and the German Chancellor's chief climate adviser Hans Joachim Schellnhuber.
Most of the contributing scientists were involved in strategy-setting for the Earth System Science Partnership, the precursor to the international global change research network Future Earth. The group wanted to define a "safe operating space for humanity" for the wider scientific community, as a precondition for sustainable development.
Nine boundaries
Thresholds and tipping points
The 2009 study identified nine planetary boundaries and, drawing on current scientific understanding, the researchers proposed quantifications for seven of them. These are:
climate change (CO2 concentration in the atmosphere < 350 ppm and/or a maximum change of +1 W/m2 in radiative forcing);
ocean acidification (mean surface seawater saturation state with respect to aragonite ≥ 80% of pre-industrial levels);
stratospheric ozone depletion (less than 5% reduction in total atmospheric O3 from a pre-industrial level of 290 Dobson Units);
biogeochemical flows in the nitrogen (N) cycle (limit industrial and agricultural fixation of N2 to 35 Tg N/yr) and phosphorus (P) cycle (annual P inflow to oceans not to exceed 10 times the natural background weathering of P);
global freshwater use (< 4000 km3/yr of consumptive use of runoff resources);
land system change (< 15% of the ice-free land surface under cropland);
the erosion of biosphere integrity (an annual rate of loss of biological diversity of < 10 extinctions per million species).
chemical pollution (introduction of novel entities in the environment).For one process in the planetary boundaries framework, the scientists have not specified a global boundary quantification:
atmospheric aerosol loading;
The quantification of individual planetary boundaries is based on the observed dynamics of the interacting Earth system processes included in the framework. The control variables were chosen because together they provide an effective way to track the human-caused shift away from Holocene conditions.
For some of Earth's dynamic processes, historic data display clear thresholds between comparatively stable conditions. For example, past ice-ages show that during peak glacial conditions, the atmospheric concentration of CO2 was ~180-200 ppm. In interglacial periods (including the Holocene), CO2 concentration has fluctuated around 280 ppm. To know what past climate conditions were like with an atmosphere with over 350 ppm CO2, scientists need to look back about 3 million years. The paleo record of climatic, ecological and biogeochemical changes shows that the Earth system has experienced tipping points, when a very small increment for a control variable (like CO2) triggers a larger, possibly catastrophic, change in the response variable (global warming) through feedbacks in the natural Earth System itself.
For several of the processes in the planetary boundaries framework, it is difficult to locate individual points that mark the threshold shift away from Holocene-like conditions. This is because the Earth system is complex and the scientific evidence base is still partial and fragmented. Instead, the planetary boundaries framework identifies many Earth system thresholds at multiple scales that will be influenced by increases in the control variables. Examples include shifts in monsoon behavior linked to the aerosol loading and freshwater use planetary boundaries.
"Safe operating spaces"
The planetary boundaries framework proposes a range of values for its control variables. This range is supposed to span the threshold between a 'safe operating space' where Holocene-like dynamics can be maintained and a highly uncertain, poorly predictable world where Earth system changes likely increase risks to societies. The boundary is defined as the lower end of that range. If the boundaries are persistently crossed, the world goes further into a danger zone.It is difficult to restore a 'safe operating space' for humanity that is described by the planetary boundary concept. Even if past biophysical changes could be mitigated, the predominant paradigms of social and economic development appear largely indifferent to the looming possibilities of large scale environmental disasters triggered by human actions. Legal boundaries can help keep human activities in check, but are only as effective as the political will to make and enforce them.
Interaction among boundaries
Understanding the Earth system is fundamentally about understanding interactions among environmental change processes. The planetary boundaries are defined with reference to dynamic conditions of the Earth system, but scientific discussions about how different planetary boundaries relate to each other are often philosophically and analytically muddled. Clearer definitions of the basic concepts and terms might help give clarity.
There are many many interactions among the processes in the planetary boundaries framework. While these interactions can create both stabilizing and destabilizing feedbacks in the Earth system, the authors suggested that a transgressed planetary boundary will reduce the safe operating space for other processes in the framework rather than expand it from the proposed boundary levels. They give the example that the land use boundary could "shift downward" if the freshwater boundary is breached, causing lands to become arid and unavailable for agriculture. At a regional level, water resources may decline in Asia if deforestation continues in the Amazon. That way of framing the interactions shifts from the framework's biophysical definition of boundaries based on Holocene-like conditions to an anthropocentric definition (demand for agricultural land). Despite this conceptual slippage, considerations of known Earth system interactions across scales suggest the need for "extreme caution in approaching or transgressing any individual planetary boundaries."Another example has to do with coral reefs and marine ecosystems: In 2009, researchers showed that, since 1990, calcification in the reefs of the Great Barrier that they examined decreased at a rate unprecedented over the last 400 years (14% in less than 20 years). Their evidence suggests that the increasing temperature stress and the declining ocean saturation state of aragonite is making it difficult for reef corals to deposit calcium carbonate. Multiple stressors, such as increased nutrient loads and fishing pressure, moves corals into less desirable ecosystem states. Ocean acidification will significantly change the distribution and abundance of a whole range of marine life, particularly species "that build skeletons, shells, and tests of biogenic calcium carbonate. Increasing temperatures, surface UV radiation levels and ocean acidity all stress marine biota, and the combination of these stresses may well cause perturbations in the abundance and diversity of marine biological systems that go well beyond the effects of a single stressor acting alone."
Proposed new or expanded boundaries since 2012
In 2012, Steven Running suggested a tenth boundary, the annual net global primary production of all terrestrial plants, as an easily determinable measure integrating many variables that will give "a clear signal about the health of ecosystems".In 2015, a second paper was published in Science to update the Planetary Boundaries concept. The update concluded four boundaries had now been transgressed: climate, biodiversity, land use and biogeochemical cycles. The 2015 paper emphasized interactions of the nine boundaries and identified climate change and loss of biodiversity integrity as 'core boundaries' of central importance to the framework because the interactions of climate and the biosphere are what scientifically defines Earth system conditions.In 2017, some authors argued that marine systems are underrepresented in the framework. Their proposed remedy was to include the seabed as a component of the earth surface change boundary. They also wrote that the framework should account for "changes in vertical mixing and ocean circulation patterns".Subsequent work on planetary boundaries begins to relate these thresholds at the regional scale.
Debate and further research per boundary
Climate change
A 2018 study calls into question the adequacy of efforts to limit warming to 2 °C above pre-industrial temperatures, as set out in the Paris Agreement. The scientists raise the possibility that even if greenhouse gas emissions are substantially reduced to limit warming to 2 °C, that might exceed the "threshold" at which self-reinforcing climate feedbacks add additional warming until the climate system stabilizes in a hothouse climate state. This would make parts of the world uninhabitable for people, raise sea levels by up to 60 metres (200 ft), and raise temperatures by 4–5 °C (7.2–9.0 °F) to levels that are higher than any interglacial period in the past 1.2 million years.
Change in biosphere integrity
According to the biologist Cristián Samper, a "boundary that expresses the probability of families of species disappearing over time would better reflect our potential impacts on the future of life on Earth." The biodiversity boundary has also been criticized for framing biodiversity solely in terms of the extinction rate. The global extinction rate has been highly variable over the Earth's history, and thus using it as the only biodiversity variable can be of limited usefulness.
Nitrogen and phosphorus
The biogeochemist William Schlesinger thinks waiting until we near some suggested limit for nitrogen deposition and other pollutions will just permit us to continue to a point where it is too late. He says the boundary suggested for phosphorus is not sustainable, and would exhaust the known phosphorus reserves in less than 200 years.The ocean chemist Peter Brewer queries whether it is "truly useful to create a list of environmental limits without serious plans for how they may be achieved ... they may become just another stick to beat citizens with. Disruption of the global nitrogen cycle is one clear example: it is likely that a large fraction of people on Earth would not be alive today without the artificial production of fertilizer. How can such ethical and economic issues be matched with a simple call to set limits? ... food is not optional."Peak phosphorus is a concept to describe the point in time at which the maximum global phosphorus production rate is reached. Phosphorus is a scarce finite resource on earth and means of production other than mining are unavailable because of its non-gaseous environmental cycle. According to some researchers, Earth's phosphorus reserves are expected to be completely depleted in 50–100 years and peak phosphorus to be reached by approximately 2030.
Ocean acidification
Surface ocean acidity is clearly interconnected with the climate change boundaries, since the concentration of carbon dioxide in the atmosphere is also the underlying control variable for the ocean acidification boundary.The ocean chemist Peter Brewer thinks "ocean acidification has impacts other than simple changes in pH, and these may need boundaries too."
Land-system change
Across the planet, forests, wetlands and other vegetation types are being converted to agricultural and other land uses, impacting freshwater, carbon and other cycles, and reducing biodiversity. In the year 2015 the boundary was defined as 75% of forests rested intact, including 85% of boreal forests, 50% of temperate forests and 85% of tropical forests. The boundary is crossed because only 62% of forests rested intact as of the year 2015.The boundary for land use has been criticized as follows: "The boundary of 15 per cent land-use change is, in practice, a premature policy guideline that dilutes the authors' overall scientific proposition. Instead, the authors might want to consider a limit on soil degradation or soil loss. This would be a more valid and useful indicator of the state of terrestrial health."
Freshwater
The freshwater cycle is another boundary significantly affected by climate change. Overexploitation of freshwater occurs if a water resource is mined or extracted at a rate that exceeds the recharge rate. Water pollution and saltwater intrusion can also turn much of the world's underground water and lakes into finite resources with "peak water" usage debates similar to oil.The hydrologist David Molden stated in 2009 that planetary boundaries are a welcome new approach in the "limits to growth" debate but said "a global limit on water consumption is necessary, but the suggested planetary boundary of 4,000 cubic kilometres per year is too generous."
Green and blue water
A study concludes that the 'Freshwater use' boundary should be renamed to the 'Freshwater change', composed of "green" and "blue" water components. 'Green water' refers to disturbances of terrestrial precipitation, evaporation and soil moisture. Water scarcity can have substantial effects in agriculture. When measuring and projecting water scarcity in agriculture for climate change scenarios, both "green water" and "blue water" are of relevance.In April 2022, scientists proposed and preliminarily evaluated 'green water' in the water cycle as a likely transgressed planetary boundary, as measured by root-zone soil moisture deviation from Holocene variability.
Ozone depletion
The stratospheric ozone layer protectively filters ultraviolet radiation (UV) from the Sun, which would otherwise damage biological systems. The actions taken after the Montreal Protocol appeared to be keeping the planet within a safe boundary.The Nobel laureate in chemistry, Mario Molina, says "five per cent is a reasonable limit for acceptable ozone depletion, but it doesn't represent a tipping point".
Atmospheric aerosols
Worldwide each year, aerosol particles result in about 800,000 premature deaths from air pollution. Aerosol loading is sufficiently important to be included among the planetary boundaries, but it is not yet clear whether an appropriate safe threshold measure can be identified.
Novel entities (chemical pollution)
Some chemicals, such as persistent organic pollutants, heavy metals and radionuclides, have potentially irreversible additive and synergic effects on biological organisms, reducing fertility and resulting in permanent genetic damage. Sublethal uptakes are drastically reducing marine bird and mammal populations. This boundary seems important, although it is hard to quantify. In 2019, it was suggested that novel entities could include genetically modified organisms, pesticides and even artificial intelligence.A Bayesian emulator for persistent organic pollutants has been developed which can potentially be used to quantify the boundaries for chemical pollution. To date, critical exposure levels of polychlorinated biphenyls (PCBs) above which mass mortality events of marine mammals are likely to occur, have been proposed as a chemical pollution planetary boundary.There are at least 350,000 artificial chemicals in the world. They are coming from "plastics, pesticides, industrial chemicals, chemicals in consumer products, antibiotics and other pharmaceuticals". They have mostly "negative effects on planetary health". Their production increased 50 times since 1950 and is expected to increase 3 times more by 2050. Plastic alone contain more than 10,000 chemicals and create large problems. The researchers are calling for limit on chemical production and shift to circular economy, meaning to products that can be reused and recycled.In January 2022 a group of scientists concluded that this planetary boundary is already exceeded, which puts in risk the stability of the Earth system. They integrated the literature information on how production and release of a number of novel entities, including plastics and hazardous chemicals, have rapidly increased in the last decades with significant impact on the planetary processes.In August 2022, scientists concluded that the (overall transgressed) boundary is a placeholder for multiple different boundaries for NEs that may emerge, reporting that PFAS pollution is one such new boundary. They show that levels of these so-called "forever chemicals" in rainwater are ubiquitously, and often greatly, above guideline safe levels worldwide. There are some moves to restrict and replace their use.
Related concepts
Planetary integrity
Planetary integrity is also called earth's life-support systems or ecological integrity.: 140 Scholars have pointed out that planetary integrity "needs to be maintained for long-term sustainability".: 140 The current biodiversity loss is threatening ecological integrity on a global scale.: 140 The term integrity refers to ecological health in this context. The concept of planetary integrity is interlinked within the concept of planetary boundaries.: 141 An expert Panel on Ecological Integrity in 1998 has defined ecological integrity as follows: "Ecosystems have integrity when they have their native components (plants, animals and other organisms) and processes (such as growth and reproduction) intact."The Sustainable Development Goals might be able to act as a steering mechanism to address the current loss of planetary integrity.: 142 There are many negative human impacts on the environment that are causing a reduction in planetary integrity.: 142
The "Limits to Growth" (1972) and Gaia theory
The idea that there are limits to the burden placed upon our planet by human activities has been around for a long time. The Planetary Boundaries framework acknowledges the influence of the 1972 study, The Limits to Growth, that presented a model in which exponential growth in world population, industrialization, pollution, food production, and resources depletion outstrip the ability of technology to increase resources availability. Subsequently, the report was widely dismissed, particularly by economists and business people, and it has often been claimed that history has proved the projections to be incorrect. In 2008, Graham Turner from the Commonwealth Scientific and Industrial Research Organisation (CSIRO) published "A comparison of The Limits to Growth with thirty years of reality". The Limits to Growth has been widely discussed, both by critics of the modelling approach and its conclusions and by analysts who argue that the insight that societies do not live in an unlimited world and that historical data since the 1970s support the report's findings. The Limits to Growth approach explores how the socio-technical dynamics of the world economy may limit humanity's opportunities and introduce risks of collapse. In contrast, the Planetary Boundaries framework focuses on the biophysical dynamics of the Earth system.Our Common Future was published in 1987 by United Nations' World Commission on Environment and Development. It tried to recapture the spirit of the Stockholm Conference. Its aim was to interlock the concepts of development and environment for future political discussions. It introduced the famous definition for sustainable development: "Development that meets the needs of the present without compromising the ability of future generations to meet their own needs."Another key idea influencing the Planetary Boundaries framework is the Gaia theory or hypothesis. In the 1970s, James Lovelock and microbiologist Lynn Margulis presented the idea that all organisms and their inorganic surroundings on Earth are integrated into a single self-regulating system. The system has the ability to react to perturbations or deviations, much like a living organism adjusts its regulation mechanisms to accommodate environmental changes such as temperature (homeostasis). Nevertheless, this capacity has limits. For instance, when a living organism is subjected to a temperature that is lower or higher than its living range, it can perish because its regulating mechanism cannot make the necessary adjustments. Similarly the Earth may not be able to react to large deviations in critical parameters. In Lovelock's book The Revenge of Gaia, he suggests that the destruction of rainforests and biodiversity, compounded with global warming resulting from the increase of greenhouse gases made by humans, could shift feedbacks in the Earth system away from a self-regulating balance to a positive (intensifying) feedback loop.
Anthropocene
Scientists have affirmed that the planet has entered a new epoch, the Anthropocene. In the Anthropocene, humans have become the main agents of not only change to the Earth System but also the driver of Earth System rupture, disruption of the Earth System's ability to be resilient and recover from that change, potentially ultimately threatening planetary habitability. The previous geological epoch, the Holocene began about 10,000 years ago. It is the current interglacial period, and was a relatively stable environment of the Earth. There have been natural environmental fluctuations during the Holocene, but the key atmospheric and biogeochemical parameters have remained within relatively narrow bounds. This stability has allowed societies to thrive worldwide, developing agriculture, large-scale settlements and complex networks of trade.According to Rockström et al., we "have now become so dependent on those investments for our way of life, and how we have organized society, technologies, and economies around them, that we must take the range within which Earth System processes varied in the Holocene as a scientific reference point for a desirable planetary state."Various biophysical processes that are important in maintaining the resilience of the Earth system are also undergoing large and rapid change because of human actions. For example, since the advent of the Anthropocene, the rate at which species are going extinct has increased over 100 times, and humans are now the driving force altering global river flows as well as water vapor flows from the land surface. Continuing perturbation of Earth system processes by human activities raises the possibility that further pressure could be destabilizing, leading to non-linear, abrupt, large-scale or irreversible environmental change responses by the Earth system within continental- to planetary-scale systems.
Reception and debate
The 2009 report was presented to the General Assembly of the Club of Rome in Amsterdam. An edited summary of the report was published as the featured article in a special 2009 edition of Nature alongside invited critical commentary from leading academics like Nobel laureate Mario J. Molina and biologist Cristián Samper.Development studies scholars have been critical of aspects of the framework and constraints that its adoption could place on the Global South. Proposals to conserve a certain proportion of Earth's remaining forests can be seen as rewarding the countries such as those in Europe that have already economically benefitted from exhausting their forests and converting land for agriculture. In contrast, countries that have yet to industrialize are asked to make sacrifices for global environmental damage they may have had little role in creating.The biogeochemist William Schlesinger queries whether thresholds are a good idea for pollutions at all. He thinks waiting until we near some suggested limit will just permit us to continue to a point where it is too late. "Management based on thresholds, although attractive in its simplicity, allows pernicious, slow and diffuse degradation to persist nearly indefinitely."In a global empirical study, researchers investigated how students of environmental and sustainability studies in 35 countries assessed the planetary boundaries. It was found that there are substantial global differences in the perception of planetary boundaries.
Subsequent developments
The "safe and just space" doughnut
National environmental footprints
Several studies have assessed environmental footprints of nations based on planetary boundaries: for Portugal, Sweden, Switzerland, the Netherlands, the European Union, India, many of Belt and Road Initiative countries as well as for the world's most important economies. While the metrics and allocation approaches applied varied, there is a converging outcome that resource use of wealthier nations – if extrapolated to world population – is not compatible with planetary boundaries.
Boundaries related to agriculture and food consumption
Human activities related to agriculture and nutrition globally contribute to the transgression of four out of nine planetary boundaries. Surplus nutrient flows (N, P) into aquatic and terrestrial ecosystems are of highest importance, followed by excessive land-system change and biodiversity loss. Whereas in the case of biodiversity loss, P cycle and land-system change, the transgression is in the zone of uncertainty—indicating an increasing risk (yellow circle in the figure), the N boundary related to agriculture is more than 200% transgressed—indicating a high risk (red marked circle in the figure). Here, nutrition includes food processing and trade as well as food consumption (preparation of food in households and gastronomy). Consumption-related environmental impacts are not quantified at the global level for the planetary boundaries of freshwater use, atmospheric aerosol loading (air pollution) and stratospheric ozone depletion.
Individual and collective allowances
Approaches based on a general framework of ecological limits include (transferable) personal carbon allowances and "legislated" national greenhouse gas emissions limits. Consumers would have freedom in their (informed) choice within (the collective) boundaries.
Usage at international policy level
United Nations
The United Nations secretary general Ban Ki-moon endorsed the concept of planetary boundaries on 16 March 2012, when he presented the key points of the report of his High Level Panel on Global Sustainability to an informal plenary of the UN General Assembly. Ban stated: "The Panel's vision is to eradicate poverty and reduce inequality, to make growth inclusive and production and consumption more sustainable, while combating climate change and respecting a range of other planetary boundaries." The concept was incorporated into the so-called "zero draft" of the outcome of the United Nations Conference on Sustainable Development to be convened in Rio de Janeiro 20–22 June 2012. However, the use of the concept was subsequently withdrawn from the text of the conference, "partly due to concerns from some poorer countries that its adoption could lead to the sidelining of poverty reduction and economic development. It is also, say observers, because the idea is simply too new to be officially adopted, and needed to be challenged, weathered and chewed over to test its robustness before standing a chance of being internationally accepted at UN negotiations."In 2011, at their second meeting, the High-level Panel on Global Sustainability of the United Nations had incorporated the concept of planetary boundaries into their framework, stating that their goal was: "To eradicate poverty and reduce inequality, make growth inclusive, and production and consumption more sustainable while combating climate change and respecting the range of other planetary boundaries."Elsewhere in their proceedings, panel members have expressed reservations about the political effectiveness of using the concept of "planetary boundaries": "Planetary boundaries are still an evolving concept that should be used with caution [...] The planetary boundaries question can be divisive as it can be perceived as a tool of the "North" to tell the "South" not to follow the resource intensive and environmentally destructive development pathway that rich countries took themselves... This language is unacceptable to most of the developing countries as they fear that an emphasis on boundaries would place unacceptable brakes on poor countries."However, the concept is routinely used in the proceedings of the United Nations, and in the UN Daily News. For example, the United Nations Environment Programme (UNEP) Executive Director Achim Steiner states that the challenge of agriculture is to "feed a growing global population without pushing humanity's footprint beyond planetary boundaries." The UNEP Yearbook 2010 also repeated Rockström's message, conceptually linking it with ecosystem management and environmental governance indicators.In their 2012 report entitled "Resilient People, Resilient Planet: A future worth choosing", The High-level Panel on Global Sustainability called for bold global efforts, "including launching a major global scientific initiative, to strengthen the interface between science and policy. We must define, through science, what scientists refer to as "planetary boundaries", "environmental thresholds" and "tipping points"".
European Commission
The planetary boundaries concept is also used in proceedings by the European Commission, and was referred to in the European Environment Agency synthesis report The European environment – state and outlook 2010.
See also
Ecological footprint
Global catastrophic risk
Global change
Holocene extinction
Human impact on the nitrogen cycle
Human impacts on the environment
Planetary health
Planetary management
Sustainability
Triple Planetary Crisis
References
Sources
External links
Figures and data for the updated Planetary Boundaries can be found at the Stockholm Resilience Centre website.
Planetary Boundaries: Specials Nature, 24 September 2009.
Johan Rockstrom: Let the environment guide our development TED video, July 2010. Transcript html
The Planetary Boundaries and what they mean for the Future of Humanity on YouTube |
climate change in tanzania | Climate change in Tanzania is affecting the natural environment and residents of Tanzania. Temperatures in Tanzania are rising with a higher likelihood of intense rainfall events (resulting in flooding) and of dry spells (resulting in droughts).Water scarcity has become an increasing problem and many major water bodies have had extreme drops in water levels, including Lake Victoria, Lake Tanganyika, Lake Jipe, and Lake Rukwa. Tanzania's agricultural sector, which employs over half of the population, is particularly vulnerable as farmers are predominantly dependent on rainfed agriculture. On the other hand, increasing intense rainfall events have resulted in flooding across the region, which has damaged infrastructure and livelihoods. A high percentage of the population of Tanzania lives along the coast and are dependent on fisheries and Aquaculture Sea level rise and changes in the quality of water are expected to impact these sectors and be a continued challenge for the country.Tanzania produced a National Adaptation Programmes of Action (NAPAs) in 2007 as mandated by the United Nations Framework Convention on Climate Change. The NAPA identifies the sectors of agriculture, water, health, and energy as Tanzania's most vulnerable sectors to climate change. In 2012, Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impact of climate change and climate variability on the country’s social, economic and physical environment. In 2015, Tanzania submitted its Intended Nationally Determined Contributions (INDC).
Impacts on the natural environment
Between 1981 and 2016 there are marked areas of drying in parts of northeast and much of southern Tanzania. In contrast, moderate wetting trends occurred in central Tanzania and stronger wetting trends in the northwest of the country. A clear warming trend is apparent in annual temperature. By the 2090s projected warming is in the range of 1.6 to 5.0 °C, also evenly distributed across the country. For rainfall there is strong agreement for decreases in the mean number of rain days and increases in the amount of rainfall on each rainy day (the ‘rainfall intensity’). Taken together these changes suggest more variable rainfall, with both higher likelihood of dry spells (such as droughts) and a higher likelihood of intense rainfall events (often associated with flooding). Climate change impacts of severe droughts, floods, livestock deaths, crop failures and outbreak of disease (such as cholera and malaria) are likely to be regularly observed.
Impacts on people
Economic impacts
Agriculture
Agriculture (including livestock) is the dominant sector in the Tanzanian economy, providing livelihood, income and employment. It is also identified as the sector most vulnerable to climate change. An increase in temperature by 2 °C - 4 °C is likely to alter the distribution of Tanzania's seven agro-ecological zones. Areas that used to grow perennial crops would be suitable for annual crops. Climate change would tend to accelerate plant growth and reduce the length of growing seasons. Vulnerability in the agricultural sector is likely to include decreased crop production of different crops exacerbated by climatic variability and unpredictability of seasonality, erosion of natural resource base and environmental degradation.A 2011 study found that crop yields are both affected by heating and increased variability. An increase in temperature by 2 °C during the growing season as projected by 2050 will likely reduce yields of rice, sorghum and maize by 7.6%, 8.8% and 13% respectively in Tanzania. A 20% increase in precipitation variability between seasons was found to decrease yields of rice, sorghum and maize by 7.6%, 7.2% and 4.2% respectively by 2050. For example a severe drought in Dodoma resulted in an 80% decrease in harvest.
Health impacts
There are a number of climate-sensitive diseases in Tanzania that may become more prevalent during drought and flooding. Water related diseases such as cholera and malaria may increase in Tanzania due to climate change.In parts of Tanzania, cholera outbreaks have been linked with increased rainfall. Cholera outbreaks in North East, South East, Lake Victoria basin and coastal areas of Tanzania were due to high rainfall. Research has also shown that initial risk of cholera increased by 15% to 19% for every 1 °C temperature increase. It was further projected that in 2030 the total costs of cholera attributable to climate change variability will be in the range of 0.32% to 1.4% of national GDP for Tanzania.The incidence of malaria are known to be highest during heavy rainfall and high temperatures as it makes mosquitoes’ habitats (such as ponds, pools, wells or bores, streams, rivers and canals) suitable breeding sites. For example, a study conducted in Lushoto district, Tanzania, reported that malaria cases were prominent during high rainfall seasons and there was a link to an increase in temperatures.
Mitigation and adaptation
Policies and legislation for adaptation
Tanzania produced a National Adaptation Programmes of Action (NAPAs) in 2007 as mandated by the United Nations Framework Convention on Climate Change. The overall vision of Tanzania’s NAPA is to identify immediate and urgent climate change adaptation actions that are robust enough to lead to long-term sustainable development in a changing climate. The NAPA identifies the sectors of agriculture, water, health, and energy as Tanzania's most vulnerable sectors to climate change. Dissemination and expansion of low-cost, readily available technology such as fuel wood-burning stoves, as well as continued investment in alternative energy sources such as wind and solar.Tanzania has outlined priority adaptation measures in their NAPA, and various national sector strategies and research outputs. The NAPA has been successful at encouraging climate change mainstreaming into sector policies in Tanzania; however, the cross-sectoral collaboration crucial to implementing adaptation strategies remains limited due to institutional challenges such as power imbalances, budget constraints and an ingrained sectoral approach. Most of the projects in Tanzania concern agriculture and water resource management (irrigation, water saving, rainwater collection); however, energy and tourism also play an important role.
In 2012, Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impacts of climate change and climate variability on the country’s social, economic and physical environment. In 2015, Tanzania submitted its Intended Nationally Determined Contributions (INDC).
See also
Climate change in Africa
== References == |
federal ministry for the environment, nature conservation, nuclear safety and consumer protection | The Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (German: Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz, pronounced [ˈbʊndəsminɪsˌteːʁiʊm fyːɐ̯ ˈʊmˌvɛlt naˈtuːɐ̯ˌʃʊt͡s nukleˈaːʁə ˈzɪçɐhaɪ̯t ʊnt fɛɐ̯ˈbʁaʊ̯xɐˌʃʊt͡s] ), abbreviated BMUV, is a cabinet-level ministry of the Federal Republic of Germany. It has branches in Bonn and Berlin.
The ministry was established on 6 June 1986 in response to the Chernobyl disaster. The then Federal Government wanted to combine environmental authority under a new minister in order to face new environmental challenges more effectively. Furthermore The Greens had been formed a few years prior in part as an anti-nuclear environmentalist party and had achieved federal representation in 1983 and Joschka Fischer had been appointed minister of the environment for Hesse the previous year, marking the first state level red-green coalition in Germany. Thus the CDU/CSU intended to project a message of taking the environment seriously in an era in which the Greens were widely perceived as the only party with a policy focus on environmental issues, notwithstanding the fact that CSU-led Bavaria had had a state environment minister since 1971 and the FDP was the first to pass an environment-related plank in the party platform in 1971. Prior to the establishment of the ministry of the environment, responsibilities for environmental issues were distributed among the ministries of the Interior, Agriculture and Health.
Functions
The ministry's primary functions include:
Fundamental national environmental policy
Informing and educating the public about environmental issues
Environmental remediation and development in Eastern Germany
Climate protection and energy
Air quality control
Noise abatement
Conservation of groundwater, rivers, lakes and seas
Soil conservation and remediation of contaminated sites
Waste management and recycling policy
Chemicals safety, environment and health
Precautions against emergencies in industrial plants
Protection, maintenance and sustainable utilization of biodiversity
Safety of nuclear facilities
Nuclear supply and disposal
Radiological protection
Organization
The ministry is led by the Minister for the Environment, Nature Conservation and Nuclear Safety. The current Minister is Steffi Lemke, appointed by Chancellor Olaf Scholz. The minister is supported by two parliamentary state secretaries (members of the cabinet and federal government, "deputy ministers") and two career state secretaries (public servants) who manage the ministry's nine directorates:
"Z" directorate (Abteilung Z) is the central office responsible for internal affairs
"G" directorate (Abteilung G) is the central office responsible for policy and collaboration
"KI" directorate (Abteilung KI): climate and international cooperation
"S" directorate (Abteilung S): radiation protection, nuclear safety, nuclear supply and radioactive waste
"WR" directorate (Abteilung WR): water management, waste management, soil conservation and contamination
"IG" directorate (Abteilung IG): air pollution, health impacts, environment and traffic, hazardous locations and materials
"N" directorate (Abteilung N): conservation und species richness, genetic engineering, environmental impacts of agriculture and forestry
Federal Environment Ministers
Political Party:
CDU
Green
SPD
See also
Bundesamt für Strahlenschutz
List of German ministers of the environment
Nuclear phase-out#Germany
Nuclear power in Germany
World Nuclear Industry Status Report
References
External links
Official Web site (German)
Official Web site (English) |
ecological assessment | Ecological assessment (EA) implies the monitoring of ecological resources, to discover the current and changing conditions. EAs are required components of most hazardous waste site investigations. Such assessments, in conjunction with contamination and human health risk assessments, help to evaluate the environmental hazards posed by contaminated sites and to determine remediation requirements.In ecological assessment many abiotic and biotic indicators, reflecting the pluralistic components of ecosystems, are used. Reporting on the state of the environment requires that information on separate indicators are integrated into comprehensive yardsticks or indices. EA is extremely complex because of regional and temporal variation in vulnerability of ecosystems and because of limited understanding of ecosystem functioning and health.
Indicators
Ecological indicators are able to
assess the condition of the environment
provide an early warning signal of changes in the environment, or
diagnose the cause of an environmental problem.Ideally the suite of indicators should represent key information about structure, function, and composition of the ecological system.In general EA indicators can be divided into abiotic and biotic indicators. Due to the complexity of ecosystems and environmental processes, a set of indicators reflecting the many facets of ecosystems is needed. Chemical, physical, and biological indicators each have specific advantages and disadvantages for monitoring and assessment.Abiotic indicators, which may give information on the risks or threats from stressors to ecosystems are comparatively well correlated with sources of pollutants and disturbances but may not reflect ecological end points in themselves.Biotic indicators may reflect end points and may be used to differentiate "healthy" from "sick" ecosystems. Correlation of biotic indicators with sources of pollutants and other disturbances is relatively difficult due to the complexity of environmental processes and the multitude of potential stressors.Critical appraisal:
small number of indicators lead to fail considering the full complexity of the ecological system
choice of ecological indicators depends on management programs that have vague long-term goals and objectives
monitoring programs miss predominantly the scientific demand (lack of defined protocol for identifying ecological indicators)
Types of ecological assessment
Strategic ecological assessment (SEcA) is required to ensure that proposed new developments are compatible with international obligations to conserve protected habitats and their associated species. In common with all forms of Environmental Impact Assessment, the effectiveness of SEcA depends on the ability to define the proposed action or set of actions and to characterize the receiving environment (baseline conditions). The ability to quantify potential impacts and to estimate their risk of occurrence is strongly dependent on the
availability
accuracy
reliability and
resolutionof national data on the distributions of habitats, species and development proposals.The U.S. Nature Conservancy has developed Rapid Ecological Assessment (REA), an integrated methodology to provide the multiple scale, up-to-date information required to guide conservation actions. REA relies on analysis of aerial photography, videography, and satellite image data to identify conservation sites and to direct field sampling and research for cost-effective biological and ecological data acquisitions.
Goals
The goal of EA is to understand the structure and function of ecosystems in order to develop improved management options. Furthermore, developing models to predict the response of ecosystems to changes contributes to finding a particular management strategy.
The results of the EA will be used to suggest possible improvements of the pollutant´s properties to reduce the potential environmental impacts.
Typical applications
Education
Agriculture
Geography
Engineering
Marine research.
Ecological assessment in the U.S.
The U.S. Environmental Protection Agency has set a definition for EA. Ecological assessment is a “qualitative or quantitative assessment of the actual or potential effects of a hazardous waste site on plants and animals other than people and domesticated species”. The methodologies used for EA noted down in the Comprehensive Environmental Response, Compensation, and Liability Act are only vaguely defined. As a result, assessment methods applied by both consultants and regulatory agencies range from qualitative approaches, such as listings of potential biotic receptors at a contaminated site, to fully quantitative approaches that include detailed exposure estimations, quantitative toxicity comparisons, and supplementary biota sampling to evaluate uptake estimates.
See also
Ecology portal
Ecological Quality Ratio (EQR)
Sustainable Process Index
== References == |
landscape-scale conservation | Landscape-scale conservation is a holistic approach to landscape management, aiming to reconcile the competing objectives of nature conservation and economic activities across a given landscape. Landscape-scale conservation may sometimes be attempted because of climate change. It can be seen as an alternative to site based conservation.
Many global problems such as poverty, food security, climate change, water scarcity, deforestation and biodiversity loss are connected. For example, lifting people out of poverty can increase consumption and drive climate change. Expanding agriculture can exacerbate water scarcity and drive habitat loss. Proponents of landscape management argue that as these problems are interconnected, coordinated approaches are needed to address them, by focussing on how landscapes can generate multiple benefits. For example, a river basin can supply water for towns and agriculture, timber and food crops for people and industry, and habitat for biodiversity; and each one of these users can have impacts on the others.Landscapes in general have been recognised as important units for conservation by intergovernmental bodies, government initiatives, and research institutes.Problems with this approach include difficulties in monitoring, and the proliferation of definitions and terms relating to it.
Definitions
There are many overlapping terms and definitions, but many terms have similar meanings. A sustainable landscape, for example, meets "the needs of the present without compromising the ability of future generations to meet their own needs."Approaching conservation by means of landscapes can be seen as "a conceptual framework whereby stakeholders in a landscape aim to reconcile competing social, economic and environmental objectives". Instead of focussing on a single use of the land it aims to ensure that the interests of different stakeholders are met.The starting point for all landscape-scale conservation schemes must be an understanding of the character of the landscape. Landscape character goes beyond aesthetic. It involves understanding how the landscape functions to support communities, cultural heritage and development, the economy, as well as the wildlife and natural resources of the area. Landscape character requires careful assessment according to accepted methodologies. Landscape character assessment will contribute to the determination of what scale is appropriate in which landscape. "Landscape scale" does not merely mean acting at a bigger scale: it means conservation is carried out at the correct scale and that it takes into account the human elements of the landscape, both past and present.
History
The word 'landscape' in English is a loanword from Dutch landschap introduced in the 1660s and originally meant a painting. The meaning a "tract of land with its distinguishing characteristics" was derived from that in 1886. This was then used as a verb as of 1916.The German geographer Carl Troll coined the German term Landschaftsökologie–thus 'landscape ecology' in 1939. He developed this terminology and many early concepts of landscape ecology as part of this work, which consisted of applying aerial photograph interpretation to studies of interactions between environment, agriculture and vegetation.
In the UK conservation of landscapes can be said to have begun in 1945 with the publication of the Report to the Government on National Parks in England and Wales. The National Parks and Access to the Countryside Act 1949 introduced the legislation for the creation Areas of Outstanding Natural Beauty (AONB). Northern Ireland has the same system after adoption of the Amenity Lands (NI) Act 1965. The first of these AONB were defined in 1956, with the last being created in 1995.The Permanent European Conference for the Study of the Rural Landscape was established in 1957. The European Landscape Convention was initiated by the Congress of Regional and Local Authorities of the Council of Europe (CLRAE) in 1994, was adopted by the Committee of Ministers of the Council of Europe in 2000, and came into force in 2004.The conservation community began to take notice of the science of landscape ecology in the 1980s.Efforts to develop concepts of landscape management that integrate international social and economic development with biodiversity conservation began in 1992.Landscape management now exists in multiple iterations and alongside other concepts such as watershed management, landscape ecology and cultural landscapes.
International
The UN Environment Programme stated in 2015 that the landscape approach embodies ecosystem management. UNEP uses the approach with the Ecosystem Management of Productive Landscapes project. The scientific committee of the Convention on Biological Diversity also considers the perspective of a landscape the most important scale for improving sustainable use of biodiversity. There are global fora on landscapes. During the Livelihoods and Landscapes Strategies programme the International Union for Conservation of Nature applied this approach to locations worldwide, in 27 landscapes in 23 different countries.Examples of landscape approaches can be global or continental, for example in Africa, Oceania and Latin America. The European Agricultural Fund for Rural Development plays an important part in funding landscape conservation in Europe.
Relevance to international commitments
Some argue landscape management can address the Sustainable Development Goals. Many of these goals have potential synergies or trade-offs: some therefore argue that addressing these goals individually may not be effective, and landscape approaches provide a potential framework to manage them. For example, increasing areas of irrigated agricultural land to end hunger could have adverse impacts on terrestrial ecosystems or sustainable water management. Landscape approaches intend to include different sectors, and thus achieve the multiple objectives of the Sustainable Development Goals – for example, working within catchment area of a river to enhance agricultural productivity, flood defence, biodiversity and carbon storage.Climate change and agriculture are intertwined so production of food and climate mitigation can be a part of landscape management. The agricultural sector accounts for around 24% of anthropogenic emissions. Unlike other sectors that emit greenhouse gases, agriculture and forestry have the potential to mitigate climate change by reducing or removing greenhouse gas emissions, for example by reforestation and landscape restoration. Advocates of landscape management argue that 'climate-smart agriculture' and REDD+ can draw on landscape management.
Regional
Germany
Because a large proportion of the biodiversity of Germany was able to invade from the south and east after human activities altered the landscape, maintaining such artificial landscapes is an integral part of nature conservation. The full name of the main nature conservation law in Germany, the Bundesnaturschutzgesetzes, is thus titled in its entirety Gesetz über Naturschutz und Landschaftspflege, where Landschaftspflege translates literally to "landscape maintenance" (see reference for more). Related concepts are Landschaftsschutz, "landscape protection/conservation", and Landschaftsschutzgebiet, a "nature preserve", or literally a (legally) "protected landscape area". The Deutscher Verband für Landschaftspflege is the main organisation which protects landscapes in Germany. It is an umbrella organisation which coordinates the regional landscape protection organisations of the different German states. Classically, there are four methods which can be done in order to conserve landscapes: maintenance, improvement, protection and redevelopment. The marketing of products such as meat from alpine meadows or apple juice from traditional Streuobstwiese can also be an important factor in conservation. Landscapes are maintained by three methods: biological - such as grazing by livestock, manually (although this is rare due to the high cost of labour) and commonly mechanically.
The Netherlands
Staatsbosbeheer, the Dutch governmental forest service, considers landscape management an important part of managing their lands. Landschapsbeheer Nederland is an umbrella organisation which promotes and helps fund the interests of the different provincial landscape management organisations, which between them include 75,000 volunteers and 110,000 hectares of protected nature reserves. Sustainable landscape management is being researched in the Netherlands.
Peru
An example of a producer movement managing a multi-functional landscape is the Potato Park in Písac, Peru, where local communities protect the ecological and cultural diversity of the 12,000ha landscape.
Sweden
In Sweden, the Swedish National Heritage Board, or Riksantikvarieämbetet, is responsible for landscape conservation. Landscape conservation can be studied at the Department of Cultural Conservation (at Dacapo Mariestad) of the University of Gothenburg, in both Swedish and English.
Thailand
An example of cooperation between very different actors is from the Doi Mae Salong watershed in northwest Thailand, a Military Reserved Area under the control of the Royal Thai Armed Forces. Reforestation activities led to tension with local hill tribes. In response, an agreement was reached with them on land rights and use of different parts of the reserve.
United Kingdom
Among the leading exponents of UK landscape scale conservation are the Areas of Outstanding Natural Beauty (AONB). There are 49 AONB in the UK. The International Union for Conservation of Nature has categorised these regions as "category 5 protected areas" and in 2005 claimed the AONB are administered using what the IUCN coined the "protected landscape approach". In Scotland there is a similar system of national scenic areas.The UK Biodiversity Action Plan protects semi-natural grasslands, among other habitats, which constitute landscapes maintained by low-intensity grazing. Agricultural environment schemes reward farmers and land managers financially for maintaining these habitats on registered agricultural land. Each of the four
countries in the UK has its own individual scheme.Studies have been carried out across the UK looking at much wider range of habitats. In Wales the Pumlumon Large Area Conservation Project focusses on upland conservation in areas of marginal agriculture and forestry. The North Somerset Levels and Moors Project addresses wetlands.
Other
Landscape approaches have been taken up by governments in for example the Greater Mekong Subregion project and in Indonesia's climate change commitments, and by international research bodies such as the Center for International Forestry Research, which convenes the Global Landscapes Forum.The Mount Kailash region is where the Indus River, the Karnali River (a major tributary of the Ganges River), the Brahmaputra River and the Sutlej river systems originate. With assistance from the International Centre for Integrated Mountain Development, the three surrounding countries (China, India and Nepal) developed an integrated management approach to the different conservation and development issues within this landscape.Six countries in West Africa in the Volta River basin using the 'Mapping Ecosystems Services to Human well-being' toolkit, use landscape modelling of alternative scenarios for the riparian buffer to make land-use decisions such as conserving hydrological ecosystem services and meeting national SDG commitments.
Variations
Ecoagriculture
In a 2001 article published by Sara J. Scherr and Jeffrey McNeely, soon expanded into a book, Scherr and McNeely introduced the term "ecoagriculture" to describe their vision of rural development while advancing the environment, claim that agriculture is the dominant influence on wild species and habitats, and point to a number of recent and potential future developments they identified as beneficial examples of land use. They incorporated the non-profit EcoAgriculture Partners. in 2004 to promote this vision, with Scherr as President and CEO, and McNeely as an independent governing board member. Scherr and McNeely edited a second book in 2007. Ecoagriculture had three elements in 2003.
Integrated landscape management
In 2012 Scherr invented a new term, integrated landscape management(ILM), to describe her ideas for developing entire regions, not at just a farm or plot level. Integrated landscape management is a way of managing sustainable landscapes by bringing together multiple stakeholders with different land use objectives. The integrated approach claims to go beyond other approaches which focus on users of the land independently of each other, despite needing some of the same resources. It is promoted by the conservation NGOs Worldwide Fund for Nature, Global Canopy Programme, The Nature Conservancy, The Sustainable Trade Initiative, and EcoAgriculture Partners. Promoters claim that integrated landscape management will maximise collaboration in planning, policy development and action regarding the interdependent Sustainable Development Goals. It was defined by four elements in 2013:
Large scale: It plans land uses at the landscape scale. Wildlife population dynamics and watershed functions can only be understood at the landscape scale. Assuming short-term trade-offs may lead to long-term synergies, conducting analyses over long time periods is advocated.
Emphasis on synergies: It tries to exploit "synergies" among conservation, agricultural production, and rural livelihoods.
Emphasis on collaboration: It can not be achieved by individuals. The management of landscapes require different land managers with different environmental and socio-economic goals to achieve conservation, production, and livelihood goals at a landscape scale.
Importance of both conservation and agricultural production: bringing conservation into the agricultural and rural development discourse by highlighting the importance of ecosystem services in supporting agricultural production. It supports conservationists to more effectively conserve nature within and outside protected areas by working with the agricultural community by developing conservation-friendly livelihoods for rural land users.By 2016 it had five elements, namely:
stakeholders come together for cooperative dialogue and action;
they exchange information systematically and discuss perspectives to achieve a shared understanding of the landscape conditions, challenges and opportunities;
collaborative planning to develop an agreed action plan;
implementation of the plan;
monitoring and dialogue to adapt management.
Ecosystem approach
The ecosystem approach, promoted by the Convention on Biological Diversity, is a strategy for the integrated ecosystem management of land, water, and living resources for conservation and sustainability.
Ten Principles
This approach includes continual learning and adaptive management: including monitoring, the expectation that actions take place at multiple scales and that landscapes are multifunctional (e.g. supplying both goods, such as timber and food, and services, such as water and biodiversity protection). There are multiple stakeholders, and it assumes they have a common concern about the landscape, negotiate change with each other, and their rights and responsibilities are clear or will become clear.
Criticisms
A literature review identified five main barriers, as follows:
Terminology confusion: the variety of definitions creates confusion and resistance to engage. This resistance has emerged, often independently, from different fields. As stated by Scherr et al.: "People are talking about the same thing ... This can lead to fragmentation of knowledge, unnecessary re-invention of ideas and practices, and inability to mobilize action at scale. ... this rich diversity is often simply overwhelming: they receive confusing messages" This problem is not unique to landscape approaches: since the 1970s it has been recognised that the constant emergence of new terminology can be harmful if they promote rhetoric at the expense of action. Because landscapes approaches develop from, and aim to integrate, a wide variety of sectors, makes it vulnerable to overlapping definitions and parallel concepts. Like other approaches to conservation, it may be a fad.
Time lags: substantial time and resources are invested in developing and planning, while resources are inadequate for implementation.
Operating silos: Each sector pursues its goals without giving consideration to the others. This may arise because of a lack in established objectives, operating norms and funding that effectively bridge different sectors. Working across sectors at the landscape scale requires a range of skills, different from those traditionally used by conservation organisations.
Engagement: Stakeholders may not desire to be engaged in the process, engagement may be trivial or inaccessible, and the discussions may hinder efficient decision-making.
Monitoring: There is lack of monitoring to check whether the objectives have been achieved.
See also
Agriculture in Concert with the Environment
Agroecology
Agroforestry
Anthropogenic biome
Conservation development
Ecosystem approach
Global biodiversity
Landscape ecology
Multifunctional landscape
Working landscape
Landscape Institute
Landscape urbanism
Polder model
Sustainable forest management
Sustainable landscaping
Topocide
Watershed management
References
External links
CIVILSCAPE - We are the landscape people! (CIVILSCAPE)
Landscape Europe
Landscape Character Network |
inflation reduction act | The Inflation Reduction Act of 2022 (IRA) is a landmark United States federal law which aims to curb inflation by possibly reducing the federal government budget deficit, lowering prescription drug prices, and investing into domestic energy production while promoting clean energy. It was passed by the 117th United States Congress and signed into law by President Joe Biden on August 16, 2022.
It is a budget reconciliation bill sponsored by Senators Chuck Schumer (D-NY) and Joe Manchin (D-WV). The bill was the result of negotiations on the proposed Build Back Better Act, which was reduced and comprehensively reworked from its initial proposal after being opposed by Manchin. It was introduced as an amendment to the Build Back Better Act and the legislative text was substituted. All Democrats in the Senate and House voted for the bill while all Republicans voted against it.According to the nonpartisan Congressional Budget Office (CBO) and Joint Committee on Taxation (JCT), the law will raise $738 billion from tax reform and prescription drug reform to lower prices, as well as authorize $891 billion in total spending – including $783 billion on energy and climate change, and three years of Affordable Care Act subsidies. The law represents the largest investment into addressing climate change in United States history. It also includes a large expansion and modernization effort for the Internal Revenue Service (IRS). According to several independent analyses, the law is projected to reduce 2030 U.S. greenhouse gas emissions to 40% below 2005 levels. The projected impact of the bill on inflation is disputed.
Background
The Build Back Better Plan was a legislative framework proposed by United States President Joe Biden between 2020 and 2021. Generally viewed as ambitious in size and scope, it sought to make the largest nationwide public investments in social, infrastructural, and environmental programs since the 1930s Great Depression-fighting policies of the New Deal.The plan was divided into three parts: one of them, the American Rescue Plan, a COVID-19 relief spending bill, was signed into law in March 2021. The other two parts were reworked into different bills over the course of extensive negotiations within and among Congressional entities. The American Jobs Plan (AJP) was a proposal to address long-neglected infrastructure needs and reduce America's contributions to climate change's destructive effects; the American Families Plan (AFP) was a proposal to fund a variety of social policy initiatives, some of which (e.g. paid family leave) had never before been enacted nationally in the U.S.The Build Back Better Act was a bill introduced in the 117th Congress to fulfill aspects of the Build Back Better Plan. It was spun off from the American Jobs Plan, alongside the Infrastructure Investment and Jobs Act, as a $3.5 trillion Democratic reconciliation package that included provisions related to climate change in the United States (centered around Senator Ron Wyden's technology-neutral, tax incentive-first approach) and social policy, lowered to approximately $2.2 trillion. The bill was passed 220–213 by the House of Representatives on November 19, 2021.
In December 2021, amidst negotiations and parliamentary procedures, Senator Joe Manchin publicly pulled his support from the bill citing its cost and a too-aggressive transition to clean energy, then retracted support for his own compromise legislation. This effectively killed the bill as it needed 50 senators to pass via reconciliation, and all 50 Republican senators opposed it.
In the summer of 2022, Manchin and Senate Majority Leader Chuck Schumer engaged in negotiations over a revised reconciliation bill with about $1 trillion in revenue from tax reform, $500 billion in climate and health care spending, and $500 billion in deficit reduction. However, Manchin announced abruptly on July 14, 2022 that he wouldn't support new climate spending or tax reform due to his fear that the bill would worsen inflation. He later stated that he would be open to revisiting those elements a few months later, provided that inflation slowed meaningfully. Biden nonetheless conceded defeat on a climate bill, urging Congress to pass whatever Manchin would agree to (a slim, $280 billion health care bill that would acquire its revenue from allowing Medicare to negotiate prices and spend $40 billion on Affordable Care Act subsidies).Unbeknownst to nearly everyone in Washington, Manchin and Schumer reengaged in secret negotiations on July 18, 2022. On July 27, hours after the Senate passed the CHIPS and Science Act, the two men released a statement announcing the $891 billion Inflation Reduction Act of 2022, which included climate spending and tax reform.The sudden deal was widely regarded as a 'shocker' as Democrats had voiced that there was little hope for a revival of their climate and tax priorities in addition to Manchin himself being rather pessimistic on the prospect of an expanded bill in public.As the revised bill made its way through the chambers of Congress, the new reality of Biden unexpectedly having a clear path to enacting substantial portions of his domestic agenda into law led to a wide reevaluation of the success of the Biden presidency thus far and was expected to give the President and his party a boost in the 2022 midterm elections.
Legislative history
The Build Back Better Act, which passed the House on September 27, 2021, was used by the Senate as the legislative vehicle for this legislation. On August 6, 2022 Senate Majority Leader Chuck Schumer proposed an amendment which would replace the text of the previously passed bill with the text of the Inflation Reduction Act of 2022. This substitute amendment was later adopted.Schumer's lead staffer, Gerry Petrella, recalls the surprise phone call came from Manchin's office just prior to the August recess and the breakthrough negotiations occurred on the final summer weekend.On August 7, 2022, following the vote-a-rama, an unlimited marathon voting session on amendments, that lasted nearly 16 hours, the Senate passed the bill (as amended) on a 51–50 vote, with all Democrats voting in favor, all Republicans voting against, and Vice President Kamala Harris breaking the tie. On August 12, 2022, the bill was passed by the House on a 220–207 vote, with all Democrats voting in favor and all Republicans voting against it. On August 16, 2022, the bill was signed into law by President Joe Biden.
Provisions
Over a period of 10 years, the law is estimated to raise revenue from:
Prescription drug price reform to lower prices, including Medicare negotiation of drug prices for certain drugs (starting at 10 new ones per year by 2026, increasing to more than 20 additional ones per year by 2029) and rebates from drug makers who price gouge – $281 billion
Imposing a selective 15% corporate minimum tax rate for companies with higher than $1 billion of annual financial statement income – $222 billion
Increased tax enforcement – $181 billion
Imposing a 1% excise tax on stock buybacks – $74 billion
2-year extension of the limitation on excess business losses – $53 billionIn the same time period, it would spend this revenue on:
Addressing domestic energy security and climate change, including funding for drought resiliency in western states – $783 billion
Continuing for three more years the expansion of Affordable Care Act subsidies originally expanded under the American Rescue Plan Act of 2021 – $64 billion
Changes to Medicare Part D, low-income subsidies, vaccine coverage, and insulin – $44 billion
Increased funding for the IRS for modernization and increased tax enforcement, including the hiring of 87,000 new IRS employees – $80 billion$663 billion of the law's climate action investments are embedded in the federal tax code. As part of the overall investment into clean energy, the law created a green bank, extended the solar investment tax credit for 10 years and invested $30 billion in nuclear power. It also invests $12 billion in electric vehicle incentives, $14 billion in home energy efficiency upgrades, $22 billion in home energy supply improvements, and $37 billion in advanced manufacturing. (The latter amount includes $5.46 billion for a DOE program for zero-emissions industrial tech demonstrations, $10 billion for the renewed 48C tax credit, and more than $5 billion to the USDOT and GSA to lower embedded emissions in procurement.) $19.5 billion goes to investments in climate-smart agriculture, more than $5 billion goes to revising remediation programs for those affected by discriminatory USDA lending practices, $5 billion goes to forest protection and urban heat island reductions, and nearly $3 billion goes to coastal habitat protection.Alternatively, the Act's climate investments can be summarized as follows: $220–372 billion in energy, $67–183 billion in manufacturing, $28–48 billion in building retrofits and energy efficiency, $33–436 billion in transportation, $22–26 billion in environmental justice, land use, air pollution reduction and/or resilience, and $3–21 billion in agriculture.The law contains provisions that cap insulin costs at $35/month and will cap out-of-pocket drug costs at $2,000 for people on Medicare, among other provisions.Several provisions in the initial deal between Schumer and Manchin were changed after negotiations with Senator Sinema: a provision narrowing the carried interest loophole was dropped, a 1% excise tax on stock buybacks was added, manufacturing exceptions were added to the corporate minimum tax, and funding for drought relief for western states was added.
Projected impacts
Economic
The CBO estimated that the Act would have no statistically significant effect on inflation. The Penn Wharton Budget Model also estimated that the Act would have no statistically significant effect on inflation, and initially projected that it would reduce cumulative deficits by $264 billion. Its second analysis, with a higher projection of total spending, does not include deficit reduction.The nonpartisan Committee for a Responsible Federal Budget analyzed the Act and concluded that the "deficit reduction, along with other elements of the bill, is likely to reduce inflationary pressures and thus reduce the risk of a possible recession." It further estimates that the Act would reduce the federal deficit by $1.9 trillion over a 20-year period. This figure includes the resulting savings on interest payments.The World Economic Forum, a Swiss business lobbying non-profit, states "…in the medium to long-term, the impact of the IRA is likely to be deflationary" and cites a prediction by the University of Massachusetts that the law will generate 912,000 jobs per year.The Tax Foundation, a fiscally conservative think tank, stated that the Act "may actually worsen inflation by constraining the productive capacity of the economy." It estimated the Act would result in a loss of 29,000 full-time equivalent jobs and a 0.2% reduction in GDP, while resulting in $324 billion of additional revenues, which would go towards deficit reduction.Modeling by the Energy Innovation group, a nonpartisan energy and climate think tank, estimated that this bill would lead to the creation of 1.4 million to 1.5 million additional jobs and increase the GDP 0.84–0.88% by 2030.The climate think tank Rocky Mountain Institute estimated that if businesses and consumers take sufficient advantage of the Act's provisions to meet national climate goals, Texas would see investments of $131 billion creating 116,000 jobs, California would see $117 billion creating 140,000 jobs, Florida $62 billion creating 85,000 jobs and Illinois $38 billion creating 42,000 jobs. The same analysis notes that the states seeing the four largest per capita investments from the Act, ranging between roughly $7,000 and $12,000, would be Wyoming, North Dakota, West Virginia, and Louisiana, all Republican-leaning states.
Energy and climate change
The Inflation Reduction Act is the largest piece of federal legislation ever to address climate change. According to the CBO and JCT, it will invest $783 billion in provisions relating to energy security and climate change. This includes $663 billion in tax incentives, and $27 billion for a green bank created by amending the Clean Air Act. However, other forecasts differ from the CBO's and JCT's reports. A report by Credit Suisse projects that the total climate spending in the Act would be $800 billion, Goldman Sachs predicts a total of $1.2 trillion, the Penn Wharton Budget Model predicts $1.045 trillion, and an analysis by the Brookings Institution finds a central case of $902 billion.The summary provided by Senate Democrats identifies primary goals as driving down consumer energy costs, increasing energy security, and reducing greenhouse gas emissions, with an emphasis on neutral treatment of technology choice for the energy tax credits, as described by Ron Wyden. According to science communicator Hank Green, the largest allocation areas are: $128 billion for renewable energy and grid energy storage, $30 billion for nuclear power, $12 billion for electric vehicle incentives, $14 billion for home energy efficiency upgrades, $22 billion for home energy supply improvements, and $37 billion for advanced manufacturing. (The latter amount includes $5.46 billion for a DOE program for zero-emissions industrial tech demonstrations, $10 billion for the renewed 48C tax credit, and more than $5 billion to the USDOT and GSA to lower embedded emissions in procurement.) An assortment of additional measures includes $32 billion for investments in rural economies, racial justice in farming, forestlands and coastal habitats, $3 billion in tax incentives for installing carbon capture and storage at existing power plants, $3 billion to electrify the USPS fleet, $3 billion to reconnect neighborhoods harmed by infrastructure potentially via freeway removal, investments in sustainable aviation fuel, grants for high voltage electric power transmission and decarbonization of port equipment, garbage trucks, school buses and local government fleets, and purchases of rural electric cooperative debt alongside other assistance to cooperatives.Climate scientist Miriam Nielsen's alternative summary of the Act's climate provisions, using much broader categories and rough estimates from Ben Beachy of the BlueGreen Alliance, is as follows: $220 billion in energy, $67 billion in manufacturing, $48 billion in building retrofits and energy efficiency, $33 billion in transportation, $26 billion in environmental justice, land use and resilience, and $21 billion in agriculture. Wharton's estimates, however, yield $372 billion in energy, $183 billion in manufacturing, $28 billion in building retrofits and energy efficiency, $436 billion in transportation, $22 billion in air pollution reduction, and $3 billion in agriculture. Credit Suisse projects at least $250 billion in advanced manufacturing tax credits and $326 billion in energy tax credits will be used.The Act aims to decrease residential energy costs by focusing on improvements to home energy efficiency. Measures include $9 billion in home energy rebate programs that focus on improving access to energy efficient technologies, and 10 years of consumer tax credits for the use of heat pumps, rooftop solar, and high-efficiency electric heating, ventilation, air conditioning and water heating. The Act extends the $7,500 tax credit for the purchase of new electric vehicles while also providing a $4,000 tax credit toward the purchase of used electric vehicles, in an effort to increase low- and middle-income access to this technology. This is projected to lead to an average of $500 in savings on energy spending for every family that receives the maximal benefit of these incentives. The Act includes a 30% tax credit ($1,200 to $2,000 per year) and different types of rebates (reaching $14,000) for homeowners who will increase the energy efficiency of their house. In some cases, all upgrade expenses will be returned.The Act changes the Section 45V tax credit to offer increased percentages to green hydrogen and pink hydrogen producers for each kilogram produced via electrolysis of water, allowing 100 percent coverage for very low-carbon methods, thus potentially enabling more than $100 billion in forgone revenue to go toward building the hydrogen economy. Upcoming Treasury Department guidance on eligibility is set to determine whether or not most of these electrolyzers must be placed near new clean energy production sites, and run at the same time as peak supply periods.The Act allocates $3 billion for helping disadvantaged communities with transportation matters, including reconnecting communities separated by transport infrastructure, assuring safe and affordable transportation "and community engagement activities". This should improve transit-oriented development. Projects improving connectivity and walkability in these neighborhoods can get grants reaching 80–100% of the overall cost. The Act also supports biking.There are also funds allocated to national clean energy production. This includes the continuation of the production tax credit ($30 billion) and investment tax credit ($10 billion) toward clean energy manufacturing, including solar power, wind power, and grid energy storage. Modifications to these credits effectively allow the federal government to predictably and directly pay utility cooperatives and publicly-owned utilities without them needing to attract investment firms, in a manner similar to the Earned Income Tax Credit. Some $14 billion of the clean energy package will go to rural areas, and include building biofuel infrastructure. This includes $9.5 billion for a new grant program called Empowering Rural America, with cooperatives encouraged to apply during a window from July 31 to September 15, 2023.The Act also provides funds toward the decarbonization of the economy in other areas, providing various tax credits and grants and loans toward decarbonizing the industrial and transportation sectors. One $27 billion competitive grant program is a green bank called the Greenhouse Gas Reduction Fund, intended to capitalize smaller regional green banks. The Act established it by amending the Clean Air Act. The Fund will award $14 billion to a select few green banks nationwide for a broad variety of decarbonization investments, $6 billion to green banks in low-income and historically disadvantaged communities for similar investments, and $7 billion to state and local energy funds for decentralized solar power in communities with no financing alternatives. The EPA set the deadline to apply for the first two award initiatives for October 12, 2023 and the Solar for All initiative for September 26, 2023. The grant package also includes a program to reduce methane emissions from production and transportation of natural gas. The Act also provides for a focus on communities and environmental justice by providing several grants targeting historically marginalized and disadvantaged communities that have been disproportionally impacted by environmental pollution and climate change.The Act also allocates funds for rural communities, racial and economic justice in farming, marine ecosystems and forestland, including $19.5 billion to invest in climate-smart agriculture (split into $8.45 billion for the Environmental Quality Incentives Program, $4.95 billion for the Regional Conservation Partnership Program, $3.25 billion for the Conservation Stewardship Program, and $1.40 billion for the Agricultural Conservation Easement Program, $1 billion for conservation technical assistance, $300 million for a carbon sequestration and emission inventory program, and $100 million in administrative expenses), $5 billion to invest in forest conservation and urban tree planting (split into $2.15 billion for the National Forest System and $2.75 billion for other forests including in urban areas), $3.1 billion to help farmers with high-risk operations caused by USDA-backed loans, $2.6 billion to protect and restore coastal habitats, and $2.2 billion to redress proven claims from socially disadvantaged farmers and ranchers of discrimination by the USDA's lending programs, as well as "$125 million for technical assistance, outreach, and mediation; $250 million for land loss assistance, such as heirs' property and fractionated land; $250 million for agricultural education emphasizing scholarships and career development at historically Black, tribal, and Hispanic colleges; and $10 million for equity commissions at USDA".The Act should cut the global greenhouse gas emissions by a level similar to "eliminating the annual planet-warming pollution of France and Germany combined" and may help to limit the warming of the planet to 1.5 degrees Celsius - the target of the Paris Agreement. With the Act and additional federal and state measures, the USA can fulfill its pledge in the Paris Agreement: 50% greenhouse gas emissions reductions by the year 2030.An assessment by the Rhodium Group, an independent research firm, estimated it would reduce national greenhouse gas emissions 32–42% below 2005 levels by 2030, compared to 24–35% under current policy while reducing household energy costs and improving energy security. Furthermore, Rhodium Group projects that the nuclear provisions in the Act are likely to "keep much, if not all" of the nation's nuclear reactors that are at risk of retiring, estimated to be 22–38% of the fleet, online through the 2030s.A preliminary analysis by the REPEAT Project of Princeton University estimated that the investments made by the law would reduce net emissions 42% below 2005 levels, compared to 27% under current policies (including the Infrastructure Investment and Jobs Act).The Energy Innovation group estimated the reduction of greenhouse gas emissions at 37–41% below 2005 levels in 2030, compared to 24% without the Act. This estimate of the greenhouse gas emission reduction lines up with the figure provided by the Act's authors which is a 40% reduction in carbon emissions relative to 2005 levels.Modeling from the nonpartisan research institution Resources for the Future indicates the Act would decrease retail power costs by 5.2–6.7% over a ten-year period, resulting in savings of $170–220 per year for the average U.S. household. The modeling also predicts that the Act would tend to stabilize electricity prices. The Act would help foster a tripling in the size of the American solar power industry and provide unprecedented investment security, according to a September 2022 report by the trade group Solar Energy Industries Association.In reaction to the Supreme Court case West Virginia v. EPA, which limited the EPA's authority to institute a program such as the Obama-era Clean Power Plan, Title VI of the IRA amended the Clean Air Act to explicitly designate carbon dioxide, hydrofluorocarbons, methane, nitrous oxide, perfluorocarbons, and sulfur hexafluoride as air pollutants to unambiguously provide the EPA congressional authorization to regulate carbon dioxide and other greenhouse gases, as well as to promote renewable energy.
Drug prices
One of the most consequential aspects of this act is the increased negotiating power granted to Medicare. Before the enactment of the Inflation Reduction Act, Medicare was notably restricted in its ability to negotiate drug prices directly with pharmaceutical companies. This limitation often resulted in higher costs for both the program and its beneficiaries. With the new rule, Medicare now engages directly with drug manufacturers, aiming to secure more favorable pricing agreements. This development has the potential to significantly alter the landscape of drug pricing, especially for high-cost medications under Medicare Part D. The Congressional Budget Office projects the Medicare drug price negotiations will save the government $98.5 billion over the next decade. The savings will be used to increase Medicare Part D benefits. Together, these drugs amounted to more than $45 billion in Medicare Part D spending from June 2022 to May 2023.In September of 2023, Medicare announced the first 10 drugs selected for negotiations under the agency's drug price negotiation program. This list includes treatments for:
Diabetes: Farxiga, Fiasp/NovoLog, Januvia, Jardiance
Blood diseases: Eliquis, Xarelto, Imbruvica
Heart failure: Entresto, Farxiga
Psoriasis: Stelara, Enbrel
Rheumatoid arthritis: Enbrel
Crohn's disease: Stelara
Taxes and distributional impact
Excerpts from the nonpartisan JCT indicated that the legislation might lead to increased payments on personal taxes for Americans of all incomes (an increase in $16.7 billion for taxpayers earning less than $200,000 a year, $14.1 billion for taxpayers earning between $200,000 and $500,000, and $23.5 billion for taxpayers earning over $500,000). This calculation was based on the assumption that companies would indirectly pass on parts of the minimum corporate tax to employees, an assumption that was criticized by Steven M. Rosenthal, a senior fellow at the nonpartisan Tax Policy Center (TPC). Economist William G. Gale, who is also co-director of the TPC, comments that it is important to consider that the calculations by the JCT did not take into account the provisions in the Act that would extend premium tax credits for health plans for low- and middle-income taxpayers, provide households with tax credits for making their property more energy-efficient, and lower the price of prescription drugs.The Tax Policy Center estimated that the bottom 80% tax filers by income would receive a net benefit, if ACA premium tax credits (subsidies) are included. The 80th-99th percentile would incur a small cost (0-0.1% increase in average federal tax rate) while the top 1% would incur a 0.2% increase. The costs mainly are imposed indirectly as corporations facing higher taxes may reduce the wage increases or levels for workers; individual tax rates were not changed.
Implementation and results
Economy
Research from climate policy analyst Jack Conness has revealed that $99 billion worth of 130 climate-friendly tech manufacturing investments within the United States, have been announced by companies since the passage of the Inflation Reduction Act, creating 80,200 projected jobs as of October 31, 2023; when considered together with CHIPS Act investments, the total comes out to 154 projects worth $240 billion creating 97,500 jobs.Citing Conness' research up to her reporting date, Nichola Groom of Reuters noted on March 7, 2023 that $43.5 billion of these investments will be in right-to-work law states that allow laborers to not join a labor union in a represented workplace, in contravention of Biden's policy theme of supporting the labor movement. Conness found that due to the Act's incentives, Oklahoma and South Carolina would receive the individual projects creating the most jobs (4,000 each), Georgia would host the most projects (19), the most new jobs overall (12,119), and the largest dollar amount in overall investments ($15.2 billion, followed by North Carolina's $13.3 billion), and Arizona would receive the largest individual investment ($5.5 billion in an LG Energy Solution battery plant, followed by Georgia's $5 billion investment from Hyundai and SK Innovation). More of the Act's investments in dollars went to counties with majorities that voted for Donald Trump in 2020 ($69,502,750,000), than to counties that voted for Biden ($27,585,650,000). 71 percent of the Act's investments were in batteries, while electric vehicle investments made up 12 percent and solar investments made up 11 percent.In a November 2023 report the interest group Environmental Entrepreneurs and the research firm BW found 210 announced projects directly linked to the Inflation Reduction Act, in the first year since its signing. They stated that the projects would create nearly 403,000 jobs, more than 100,000 of which would be permanent. According to editor in chief Jeff St. John of Canary Media, "During the projects’ construction phases, assumed to last five years from project announcement to completion, the report estimates the creation of 142,300 direct jobs, 55,900 indirect jobs and 105,300 jobs induced by the direct and indirect workers spending their wages." More than 185,000 of these jobs would be in electric vehicles, 48,795 would be in battery storage, 42,100 would be in solar and wind power, 21,322 would be in clean fuels, and nearly 5,600 would be in electric power transmission and distribution. The authors project that the Act would bring about "$156 billion added to U.S. GDP, $111 billion in new wages for workers, and more than $32 billion generated in tax revenue for federal, state, and local governments."Wellesley College professor of environmental studies Jay Turner said that as of September 23, 2023 the Act fostered $58.4 billion in 67 new investments in the electric vehicle supply chain, creating a projected 42,195 new jobs across the United States, Canada and Mexico.The League of Conservation Voters-, Center for American Progress-, and Sierra Club-affiliated research firm Climate Power estimated that the Act spurred $89.5 billion of investments in over 90 new projects creating 101,036 predicted clean energy-related jobs in 31 states, between August 16, 2022 and January 31, 2023, and that while Georgia, Michigan, and Texas saw eight new IRA-linked projects each, the most of any states, Georgia, Idaho and Tennessee would see the largest overall investments by dollar amount (ranging from $10.4 billion to $15.3 billion), and Kansas, Georgia and Tennessee would see the most jobs created.In August 2023, the Solar Energy Industries Association reported that the Act had created more than 20,000 jobs and incentivized $20 billion in new solar power tech manufacturing and 155 gigawatts of generating capacity in the law's first year, and projected it would incentivize $144 billion more in such investments by 2033 than under a no-Act scenario.The trade group American Clean Power's January 2023 assessment of business announcements of IRA-linked investments in renewables and battery plants, during the period between the Act's signing and November 30, 2022, yielded a figure of over $40 billion creating 6,850 jobs. 80 percent of these investments are in Republican-held districts, mostly in the Great Plains or South. Its August 2023 update recorded a total of 97 manufacturing investments worth $270 billion spurred by the Act between the August 16 enactment date and July 31, 2023, 83 with defined locations, with the majority of these being solar power tech plants. American Clean Power estimates these investments are worth more than all those made in the previous eight years combined, and will create 29,780 new jobs and $4.5 billion in customer savings.According to the New Democrat-linked think tank Center for American Progress, the Act, the CHIPS and Science Act, and the Infrastructure Investment and Jobs Act have together catalyzed over 35,000 public and private investments. The Biden administration itself claimed that as of November 14, 2023, the IIJA, CaSA, and IRA together catalyzed over $614 billion in private investment (including $231 billion in electronics and semiconductors, $142 billion in electric vehicles and batteries, and $133 billion in clean energy generators) and over $392.2 billion in public infrastructure spending (including $35.7 billion in energy aside from tax credits in the IRA).
Environment
According to Rhodium Group and the World Economic Forum, in the first year of implementation, the Act had a significant impact on the environment. The Rhodium Group's expectations for GHG emissions reductions by the year 2030, relative to the level of 2005, moved from 17%-30% to 29%-42%, and to a 32%-51% decline by the year 2035. More than 170,000 green jobs were created. The sales of heat pumps exceeded the sales of gas boilers for the first time in history. 15% of households now use a heat pump as a primary source of heating. The United States Environmental Protection Agency used dozens of millions of dollars to improve air quality and hundreds of millions for environmental justice and local climate plans. The National Oceanic and Atmospheric Administration spent hundreds of millions for protecting coastal communities and ecosystems from the impact of climate change. More than $1 billion is allocated to equitable access to urban trees.The governors of four states, Florida, South Dakota, Iowa, and Kentucky, refused to accept decarbonization grants from the Act. The Act allows the forfeited money, $3 million per state, to go to the three largest metropolitan areas in each state instead, though cities such as Davenport, Iowa and Sioux Falls, South Dakota have still refused the money.
Energy efficiency
Significant improvements were achieved in the domain of green building through the installation of efficient heating, ventilation, and air conditioning systems, and more.For the first $8.5 billion in home rebate programs, the Department of Energy released its first draft guidance for states on July 27, 2023. The guidance entails the DOE distributing $4.3 billion to states to work with the DOE to create rebate programs for whole-home upgrades and $4.28 billion to states for appliance replacement rebates, with the suggestion that half the money go to households below 80 percent of area median income.
Ecosystems
In 2023 an agreement between seven states (Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming) was achieved, aiming to preserve the Colorado River water system from collapse due to poor management and climate change. The United States is heavily dependent on the river for power generation, drinking water, agriculture, wildlands restoration, and native cultural practices. Some states will reduce water use, receiving $1.2 billion in compensation for it from the federal government. Many other projects for preserving the river such as water recycling and rainwater harvesting are being advanced. The funding comes from the Infrastructure Investment and Jobs Act and the Inflation Reduction Act.According to a Biden administration statement, in the first year of implementation, around $2 billion was allocated to protect and restore land and marine ecosystems, including National Parks and the National Wildlife Refuge System. $150 million was given to small and underserved forest owners, and intended to link them to climate markets, providing incentives to conserve the forests.In November 2023, the Biden administration announced it would provide the National Parks System $166 million for ecosystem resilience and environmental planning.
Sustainable agriculture
From October 2022 to September 2023 more than $850 million dollars was given by the Natural Resources Conservation Service to its Environmental Quality Incentives Program, Conservation Stewardship Program, Regional Conservation Partnership Program and Agricultural Conservation Easement Program to advance sustainable agriculture.
Environmental justice
In October 2023 the United States Environmental Protection Agency allocated $128 million to 186 projects linked to environmental justice. $104 million comes from the Inflation Reduction Act. The projects are designed to solve pollution and climate-related disasters in underserved communities. The projects include creating parks for addressing floods, protecting Duck Valley Indian Reservation natural and cultural resources, teaching children about repairing and more. The full list of projects with short descriptions has been published.In November 2023, the Biden administration announced the Department of the Interior would be spending $20 million to establish the Kapapahuliau Climate Resilience Program, named for the process of navigating through rough seas and winds, to the Native Hawaiian community for climate adaptation and resilience. The deadline to apply for program award grants is February 29, 2024. It also announced the EPA would spend $2 billion on its new Community Change Grants Program for partnerships between local nonprofits, governments and indigenous tribes, and colleges and universities to “deploy clean energy, strengthen climate resilience, and build community capacity to respond to environmental and climate justice challenges”.
Drug prices
The Biden administration announced the first ten drugs to have their prices negotiated in 2026 by Medicare on August 29, 2023. They are Eliquis, Jardiance, Xarelto, Januvia, Farxiga, Entresto, Enbrel, Imbruvica, Stelara, and Fiasp and NovoLog. The list selection, made by the Centers for Medicare & Medicaid Services, was based on whether these drugs lacked competition, how much they cost Medicare, and how long they have been on the market. The manufacturers, Bristol Myers Squibb, Boehringer Ingelheim, Janssen Pharmaceuticals, Merck, AstraZeneca, Novartis, Immunex, Pharmacyclics, and Novo Nordisk, had until October 1, 2023 to declare their intent to participate, upon penalty of a large excise tax, or they would withdraw their drugs from Medicaid and Medicare. The Biden administration announced two days later that all companies had agreed to the negotiations.The Medicare drug price negotiation provisions are facing eight protest lawsuits filed by drug manufacturers and the U.S. Chamber of Commerce, variously claiming that the federal government is violating the First, Fifth, and Eighth Amendments to the Constitution, which deal with freedom of speech, just compensation for takings, and excessive fines. Larry Gostin, a public health and legal scholar, told The New York Times that he does not expect the provisions to be upheld by the Supreme Court of the United States. A "second wave" of lawsuits, likely focusing on the price negotiations' bureaucratic process, is expected in the coming weeks, according to Stephen Ubl, CEO of the pharmaceutical industry lobbying group PhRMA. Some legal commentators speculate the cases are intended to produce a variety of rulings across the federal courts, making it more likely for the Supreme Court to hear them. While the healthcare investors' consulting firm Avalere claimed in July 2022 that $455 billion in revenue would be lost by drug manufacturers and the trade group Vital Transformation claimed 139 fewer new drugs would be approved over the next decade due to the Act, the Congressional Budget Office projects only one fewer drug will be approved than without the Act over the next decade, five fewer over the succeeding decade, and seven fewer over the decade after that.
Taxation
Treasury Secretary Janet Yellen directed IRS Commissioner Charles Rettig to not use the new funding allocated in the Act to increase the rate of audits of those making less than $400,000 a year above historical levels, but to instead focus on "high-end noncompliance". A Treasury report indicated that half of the funding would be allocated to preventing tax evasion from large corporations and wealthy individuals.The Treasury and Internal Revenue Service published guidance on eligibility for electric vehicle owners to claim tax credits worth between $3,500 and $7,500, including outlining a requirement for the vehicle to have a final assembly in North America. The Department of Energy and the Department of Transportation also published resources identifying vehicles that will likely meet all requirements for tax credit. The Department of Energy indicated that their list of eligible vehicles is not a guarantee for credit, and states that the Vehicle Identification Number (VIN) will give full manufacturing details and locations. Those qualified will receive the tax credits, known as the Clean Vehicle Credit, previously called the Qualified Plug-In Electric Drive Motor Vehicle Credit. The US Treasury Department has also stated that owners who purchase eligible vehicles previous to August 16, 2022, but did not possess the vehicle until after that date, also qualify for the Clean Vehicle Credit. However, because of the requirement that qualified EVs must have half or more of its battery materials built in the US and "at least 40 percent of materials sourced from North America or a US trading partner by 2024" (with this minimum percentage meant to increase each year) and the batteries cannot contain minerals that "were extracted, processed, or recycled by a foreign entity of concern", most currently available EVs on the market will not qualify for the tax credits. The Treasury released its next draft guidance for EV buyers on March 31, 2023, effective immediately, with finalization expected in June; the allowed materials source list includes the 20 United States free-trade agreements partners and Japan.Additional tax credits were presented in the Act for energy efficiency in buildings, expanding current incentives in a tier-based system beginning in 2023. The Act specifies that commercial buildings must update efficiency by 25%, compared to a reference building, to qualify for $0.50 per square foot of tax credit for the first tier, increasing to a maximum of $5.00 per square foot for the final tier. The tax credits also extends to single and multi-family housing, requiring 50% less annual energy consumption compared to similar units. Vincent Barnes, a senior vice president from Alliance to Save Energy in Washington, D.C, stated that these policies were meant to reduce energy costs and demand on the power grid.The Treasury Department also clarified on May 12, 2023, that in order to be eligible for select tax credits, solar panel manufacturers and installers need to source at least 40 percent of their components in total from within the U.S., regardless of solar cell origin, thereby creating a compromise between solar panel installers who favored keeping Chinese imports cheap and domestic solar cell manufacturers who want to build more factories in America.
Per state
Florida
The state received $3.75 million for urban forests and nature conservation, $209,000 for fighting pollution, and $78.7 million to protect the state from climate change impacts (the third amount is from the Infrastructure Investment and Jobs Act and the Inflation Reduction Act combined).
However, the governor, Ron DeSantis, refused to accept $346 million for rebates to homeowners who will want to retrofit their houses for energy efficiency, $3 million to fight pollution, a program for helping low income people buy solar panels as well as $24 million from the Infrastructure Investment and Jobs Act for improving sewage systems in rural areas.The money can go to local cities and authorities. Three cities in Florida accepted some amounts. Other states want to take the money forfeited by Florida for themselves, namely Rhode Island and Kentucky.The funds for the rebates were requested by the Florida state energy office and the legislature, but DeSantis vetoed them. He is the only governor who did so. The program was intended to help people to lower their energy bills and create jobs. Half of the money would have gone to low-income households. Making a house more energy efficient can cut utility bills by 25% for an average family in Florida. Part of the money would have gone to weatherization of houses.
Texas
Some aspects of the law are the same as in other states, while some are specific to Texas. Considerable tax credits and tax rebates are afforded. House weatherization, solar energy, electric vehicles, are advanced. House weatherization can save around $283 per year for an average family in Texas, while raising the value of the property and reducing air pollution in the same time. Some improvements can be made for free to low income households. The cost of an energy audit is reduced by 30% and some can even get it for free.A third of Texas households can get a 100% rebate for installing a heat pump (generally costing US$8,000). Forest protection is advanced, and farms that adopt climate-friendly practices get economic incentives.
Reactions
Senator Joe Manchin (D-WV) issued a statement for his support of the bill. President Joe Biden also stated his support for the proposed bill. On August 4, Senator Kyrsten Sinema (D-AZ) issued a statement indicating that she would support the bill after striking a deal with fellow Democrats to change several tax provisions.Congressional Republicans have voiced unanimous opposition to the bill, claiming the legislation would do little to combat inflation, or would exacerbate it. Senate Minority Leader Mitch McConnell (R-KY) denounced the legislation as "reckless spending" and Ranking Member of the Senate Budget Committee Lindsey Graham (R-SC) called it "insanity".
In a letter sent to congressional leadership and touted by Senate Democrats, 126 economists including Robert Rubin, Jack Lew, Jason Furman, Lawrence Summers, Mark Zandi, and Joseph Stiglitz, wrote that the bill is more than fully paid for, lowers prices for consumers and will lower inflation.In a letter sent to congressional leadership, 230 economists including Vernon Smith, Robert Heller, Kevin Hassett, Jim Miller, and Larry Kudlow, wrote that the bill will increase prices for consumers and will increase inflation.Tom Philpott, an agriculture journalist writing in Wired, praised the bill's investments in climate-smart agriculture and remedies for USDA loan discrimination, but heavily criticized Sinema's deletion of the carried interest loophole modification and the lack of provisions to expand funding for the National School Lunch Act and improvements to child nutrition (as expressed in the original Build Back Better Act) and for soil erosion prevention programs (which enhance small-scale carbon farming and encourage a shift away from monoculture-dependent farming for ethanol fuel in the United States).Anna McGinn of the think tank Environmental and Energy Study Institute praised the Act for helping the U.S. meet its commitments to the Paris Agreement, but criticized the Act for lacking commitments to loss and damage and other forms of climate-related foreign aid as well as to creating a cohesive national climate strategy. The International Monetary Fund, in its analysis of the Act, cautioned that it could expose the U.S. to the beginnings of trade war, but if implemented deftly, the Act could strengthen diplomacy with Europe and help create special rules to advance the trade of clean energy. Commentators at the Center for Strategic International Studies and in The Diplomat, along with United States Trade Representative Katherine Tai, have acknowledged increased economic competition with China as one of many motivators behind the Act.Climate activists Miriam Nielsen, Raya Salter and Heather Tanana examined the Act's effects eight months after passage, and raised questions on whether the Act would provide tax credits and grants equitably, mentioning the home energy upgrade grants and the Biden administration's Justice40 Initiative for racial justice, whether the Act would disproportionately help larger environmental groups with more resources rather than smaller ones, and how it would implement $4 billion in Western drought resilience grants and make accessing them easier.
Public organizations
Darren Woods, the CEO of oil and gas energy giant ExxonMobil, called the bill "a step in the right direction" and endorsed its provisions related to oil and gas. Multiple coal industry groups, including the West Virginia Coal Association, criticized the bill for "[obviating] any need to innovate coal assets" and doing "nothing for coal or coal generation".Many mainstream environmental organizations supported the bill, such as the Nature Conservancy, the National Wildlife Federation, and American Forests. The director of North America policy for the Nature Conservancy, Tom Cors, called the legislation "historic", while Aviva Glaser of the NWF called the infusion of spending "transformative." The Natural Resources Defense Council argued that despite continued acceptance of fossil fuels in the IRA, its climate mitigation policies would outweigh their impact ten times over. Health and environmental justice organizations like Earthjustice have welcomed the law.However, not all environmental groups expressed unqualified support. Some environmentalists noted that the bill contained more "carrots", or incentives for positive behavior, than "sticks", or new regulations. Several groups argued that as the legislation did not seek to eliminate fossil fuels entirely, it was inadequate to meet the threat of climate change. Jean Su, the energy justice program director at the Center for Biological Diversity, called the legislation "a backdoor take-it-or-leave-it deal between a coal baron and Democratic leaders in which any opposition from lawmakers or frontline communities was quashed." The Climate Justice Alliance criticized the IRA, saying that "the strengths of the IRA are outweighed by the bill's weaknesses and threats posed by the expansion of fossil fuels and unproven technologies such as carbon capture and hydrogen generation."The heads of the National Cooperative Business Association, National Rural Electric Cooperative Association, National Farmers Union, and National Council of Farming Cooperatives praised the IRA for its provisions assisting cooperatives in energy and agriculture, particularly direct grants and debt forgiveness. Cornelius Blanding, head of the U.S. Federation of Southern Cooperatives, also praised the IRA, but expressed concern that its revisions of the American Rescue Plan's debt relief programs for minority farmers would worsen racial discrimination in agriculture.Cycling organizations criticized the IRA for removing the incentives for electric bicycles in the original Build Back Better Act, having a better energy-per-incentive ratio and reaching a wider demographic, than for electric cars remaining in the IRA. Sean Jeans-Gail, Vice President of Government Affairs and Policy at the Rail Passengers Association, criticized the IRA saying, "It's a bitter pill in terms of rail and transit, which is the one clearly established, low-carbon emission transportation systems we have going". He also criticized the bill for being car centric.27 European Union finance ministers have expressed "serious concerns" about the financial incentives of the Inflation Reduction Act, and are considering challenging it. They have listed at least nine points in the legislation, which they say could be in breach of World Trade Organization rules. They were opposed to the subsidies for consumers to buy North American-assembled electric cars, as EU officials believe the subsidies discriminate against European carmakers. One EU official told CNBC that, "there is a political consensus (among the 27 ministers) that this plan threatens the European industry" and its supply of raw materials. In February 2023, the European Commission announced it would propose the "Net Zero Industrial Act", similar to the IRA, in turn putting pressure on the United Kingdom and South Korea.On March 10, 2023, President Biden and President of the European Commission Ursula von der Leyen announced they would be initiating top-level talks to mitigate issues of subsidy competition.Representatives from South Korea have also voiced similar concerns to Europe, given that the legislation can also restrict Hyundai's and other South Korean carmakers' business in the American market.Some members of the trade union United Auto Workers, including former vice president Cindy Estrada, have obliquely commented to The American Prospect that the Inflation Reduction Act's implementation regarding prevailing wage requirements and collective bargaining rights (particularly at electric vehicle factories owned by startup companies) may be weakened, and if not properly implemented, the Act could be linked to poor hiring practices and working conditions. Other labor union representatives, from the AFL–CIO, Southwest Laborers District Council, Ironworkers Local 848 and United Steelworkers, told Reuters in March 2023 that investments announced due to the Act have not improved labor unions' ability to organize particularly in right-to-work law states, but that they were hopeful in pushing ahead.The Prospect's editor, Robert Kuttner, commented in January 2023 that the Treasury Department's interpretation of the Act regarding electric vehicle leasing could also potentially undermine the Act's U.S. domestic supply provisions in favor of European or Chinese suppliers. Manchin expressed disappointment with the Treasury's new guidance and its more lenient provisions for foreign trading partners upon its release on March 31.
See also
List of acts of the 117th United States Congress
Energy in the United States
Energy policy of the United States, including the Infrastructure Investment and Jobs Act and CHIPS and Science Act
List of tie-breaking votes cast by the vice president of the United States
2021–2023 inflation surge
Notes
References
External links
Inflation Reduction Act of 2022 as enacted (PDF/details) in the US Statutes at Large
H.R.5376 - Inflation Reduction Act of 2022 bill information on Congress.gov |
entomophagy in humans | Entomophagy in humans or human entomophagy describes the consumption of insects (entomophagy) by humans in a cultural and biological context. The scientific term used in anthropology, cultural studies, biology and medicine is anthropo-entomophagy. Anthropo-entomophagy does not include the eating of arthropods other than insects such as arachnids and myriapods, which is defined as arachnophagy.
Entomophagy is scientifically documented as widespread among non-human primates and common among many human communities. The eggs, larvae, pupae, and adults of certain insects have been eaten by humans from prehistoric times to the present day. Around 3,000 ethnic groups practice entomophagy. Human insect-eating (anthropo-entomophagy) is common to cultures in most parts of the world, including Central and South America, Africa, Asia, Australia, and New Zealand. Eighty percent of the world's nations eat insects of 1,000 to 2,000 species. FAO has registered some 1,900 edible insect species and estimates that there were, in 2005, some two billion insect consumers worldwide. FAO suggests eating insects as a possible solution to environmental degradation caused by livestock production.In some societies, primarily western nations, entomophagy is uncommon or taboo. Today, insect eating is uncommon in North America and Europe, but insects remain a popular food elsewhere, and some companies are trying to introduce insects as food into Western diets.Insects eaten around the world include crickets, cicadas, grasshoppers, ants, various beetle grubs (such as mealworms, the larvae of the darkling beetle), and various species of caterpillar (such as bamboo worms, mopani worms, silkworms and waxworms).
History
Precursors of Homo sapiens and insects consumption
Evidence suggests that evolutionary precursors of Homo sapiens were entomophagous and arachnophagous. Insectivory also features to various degrees amongst extant primates, such as marmosets and tamarins, and some researchers suggest that the earliest primates were nocturnal, arboreal insectivores. Similarly, most extant apes are insectivorous to some degree.The archaeological record, in the form of bone tools with wear marks, shows that early hominids such as Australopithecus robustus would gather termites for consumption. Lesnik also reviews multiple studies concluding that wear marks running along the length of the bone are indicative of tools used for digging up termite mounds. These markings are different than those on tools that might have been used to dig up plants and roots, which would have wear marks in multiple directions from digging at a horizontal angle and possibly hitting rocks which aren't present in termite hills. Similarly a review of isotope studies show that A. robustus was not eating large amounts of plants and fruits as a source of protein, but it was instead being fulfilled by other means such as animal or insect protein.Modern human's larger brain size is often attributed to the theory that it was made possible due to an increase in consumption of meat. The remains of KNM-ER 1808, a specimen of Homo erectus dated to around 1.8 million years ago, has often been used as evidence for the hunter model due to its abnormal bone growths pointing to hypervitaminosis A from consuming excess animal liver. However, Mark Skinner has proposed that consuming bee larvae and pupae could also provide enough vitamin A to cause hypervitaminosis A. Due to insects nutritional value and abundance, they would also be able to provide the necessary amount of protein required for hominin such as H. erectus.
Coprolites and cave paintings
Before humans had tools to hunt or farm, insects may have represented an important part of their diet. Evidence has been found analyzing coprolites from caves in the US and Mexico. Coprolites in caves in the Ozark Mountains were found to contain insect (ants, beetle larvae, lice), as well as arachnids (ticks, mites).Cave paintings in Altamira, north Spain, which have been dated from about 30,000 to 9,000 BC, depict the collection of edible insects and wild bee nests, suggesting a possibly entomophagous society. Cocoons of wild silkworm (Triuncina religiosae) were found in ruins in Shanxi Province of China, from 2,000 to 2,500 years BC. The cocoons were discovered with large holes in them, suggesting the pupae were eaten. Many ancient entomophagy practices have changed little over time compared with other agricultural practices, leading to the development of modern traditional entomophagy.
Insect consumption in human cultures
Many cultures embrace the eating of insects. Edible insects have long been used by ethnic groups in Asia, Africa, Mexico and South America as cheap and sustainable sources of protein. Up to 2,086 species are eaten by 3,071 ethnic groups in 130 countries. The species include 235 butterflies and moths, 344 beetles, 313 ants, bees and wasps, 239 grasshoppers, crickets and cockroaches, 39 termites, and 20 dragonflies, as well as cicadas. Insects are known to be eaten in 80 percent of the world's nations.
The leafcutter ant Atta laevigata is traditionally eaten in some regions of Colombia and northeast Brazil. In southern Africa, the widespread moth Gonimbrasia belina's large caterpillar, the mopani or mopane worm, is a source of food protein. In Australia, the witchetty grub is eaten by the indigenous population. The grubs of Hypoderma tarandi, a reindeer parasite, were part of the traditional diet of the Nunamiut people. Udonga montana is a pentatomid bug that has periodic population outbreaks and is eaten in northeastern India.Traditionally several ethnic groups in Indonesia are known to consume insects—especially grasshoppers, crickets, termites, the larvae of the sago palm weevil, and bees. In Java and Kalimantan, grasshoppers and crickets are usually lightly battered and deep fried in palm oil as a crispy kripik or rempeyek snack. In Banyuwangi, East Java, there is a specialty botok called botok tawon (honeybee botok), which is beehives that contains bee larvae, being seasoned in spices and shredded coconut, wrapped inside a banana leaf package and steamed. Dayak tribes of Kalimantan, also Moluccans and Papuan tribes in Eastern Indonesia, are known to consume ulat sagu (lit. 'sagoo caterpillar') or larvae of sago palm weevil. These protein-rich larvae are considered as a delicacy in Papua, eaten both roasted or uncooked.In Thailand, certain insects are also consumed, especially in northern provinces. Traditional markets in Thailand often have stalls selling deep-fried grasshoppers, cricket (ching rit), bee larvae, silkworm (non mai), ant eggs (khai mot) and termites.The use of insects as an ingredient in traditional foodstuffs in places such as Hidalgo in Mexico has been on a large enough scale to cause their populations to decline.In East Africa, Kunga cake is a food made of densely compressed flies.
In Western culture
Although insect products such as honey and carmine are common, eating insects has not been adopted as a widespread practice in the West. There are some exceptions in traditional food. Casu marzu, for example, also called casu modde, casu cundhídu, or in Italian formaggio marcio, is a cheese made in Sardinia notable for being riddled with live insect larvae. Casu marzu means 'rotten cheese' in Sardinian language and is known colloquially as maggot cheese.
However, there is a trend in the West towards the consumption of insects. By 2011, a few restaurants in the Western world regularly served insects. For example, two places in Vancouver, British Columbia, Canada, offered cricket-based items (Vij's Restaurant had parathas made from roasted crickets that are ground into a powder or meal, its sister restaurant, Rangoli Restaurant, offers pizza that was made by sprinkling whole roasted crickets on naan dough). Aspire Food Group was the first large-scale insect farming company in North America, using automated machinery in a 25,000-square-foot (2,300 m2) warehouse dedicated to raising organically-grown house crickets for human consumption.
Rejection and cultural taboo
Within Western culture, entomophagy (barring some food additives, such as carmine and shellac) is seen as taboo. The disgust associated with the taboo is used in Western media. For example, a scene in the Italian film Mondo Cane (1962) features an insect banquet for shock effect, and a scene from Indiana Jones and the Temple of Doom (1984) features insects as part of a similar banquet for shock factor. Western avoidance of entomophagy coexists with the consumption of other invertebrates such as molluscs and the insects' close arthropod relatives crustaceans, and is not based on taste or food value.The Maliki school of Islamic jurisprudence is the only tradition that allows the consumption of all insects (provided that they are not harmful to one's health). Some schools consider scorpions haram, but eating locusts as halal. Others prohibit all animals that creep, including insects.Within Judaism, most insects are not considered kosher, with the disputed exception of a few species of "kosher locust" which are accepted by certain communities.Public health nutritionist Alan Dangour has argued that large-scale entomophagy in Western culture faces "extremely large" barriers, which are "perhaps currently even likely to be insurmountable." There is widespread disgust at entomophagy in the West, the image of insects being "unclean and disease-carrying". The anthropologist Marvin Harris has suggested that the eating of insects is taboo in cultures that have other protein sources which require more work to obtain, such as poultry or cattle, though there are cultures which feature both animal husbandry and entomophagy. Examples can be found in Botswana, South Africa and Zimbabwe where strong cattle-raising traditions co-exist with entomophagy of insects like the mopane worm. In addition, people in cultures where entomophagy is common are not indiscriminate in their choice of insects, as Thai consumers of insects perceive edible insects not consumed within their culture in a similar way as Western consumers.
Promotion
The Food and Agriculture Organization has displayed an interest in developing entomophagy on multiple occasions. In 2008, the FAO organized a conference to "discuss the potential for developing insects in the Asia and Pacific region." According to Durst, FAO efforts in entomophagy will focus on regions in which entomophagy has been historically accepted but has recently experienced a decline in popularity.In 2011, the European Commission issued a request for reports on the current use of insects as food, with the promise that reports from each European Union member state would serve to inform legislative proposals for the new process for insect foods. According to NPR, the European Union is investing more than 4 million dollars to research entomophagy as a human protein source.
Debate
Advantages of eating insects
Recent assessments of the potential of large-scale entomophagy have led some experts to suggest insects as a potential alternative protein source to conventional livestock, citing possible benefits including greater efficiency, lower resource use, increased food security, and environmental and economic sustainability.
Nutritional benefits
Insects are a complete protein source (contains all nine essential amino acids) and contain a more useful amount, comparable with protein from soybeans, though less than in casein (found in foods such as cheese). They have dietary fiber and include mostly unsaturated fat and contain some vitamins and essential minerals.
Food security
While more attention is needed to fully assess the potential of edible insects, they provide a natural source of essential nutrients, offering an opportunity to bridge the gap in protein consumption between poor and wealthy nations and also to lighten the ecological footprint. Many insects contain abundant stores of lysine, an amino acid deficient in the diets of many people who depend heavily on grain. Some argue that the combination of increasing land use pressure, climate change, and food grain shortages due to the use of maize as a biofuel feedstock will cause serious challenges for attempts to meet future protein demand.The first publication to suggest that edible insects could ease the problems of global food shortages was by Meyer-Rochow in 1975. Insects as food and feed have emerged as an especially relevant issue in the 21st century due to the rising cost of animal protein, food and feed insecurity, environmental pressures, population growth and increasing demand for protein among the middle classes. At the 2013 International Conference on Forests for Food Security and Nutrition, the Food and Agriculture Organization of the United Nations released a publication titled Edible insects - Future prospects for food and feed security describing the contribution of insects to food security. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products.
Sustainability and environmental benefits
The methods of matter assimilation and nutrient transport used by insects make insect cultivation a more efficient method of converting plant material into biomass than rearing traditional livestock. More than 10 times more plant material is needed to produce one kilogram of meat than one kilogram of insect biomass. The spatial usage and water requirements are only a fraction of that required to produce the same mass of food with cattle farming. Production of 150g of grasshopper meat requires very little water, while cattle requires 3290 liters to produce the same amount of beef. This indicates that lower natural resource use and ecosystem strain could be expected from insects at all levels of the supply chain. Edible insects also display much faster growth and breeding cycles than traditional livestock. An analysis of the carbon intensity of five edible insect species conducted at the University of Wageningen, Netherlands found that "the average daily gain (ADG) of the five insect species studied was 4.0-19.6 percent, the minimum value of this range being close to the 3.2% reported for pigs, whereas the maximum value was 6 times higher. Compared to cattle (0.3%), insect ADG values were much higher." Additionally, all insect species studied produced much lower amounts of ammonia than conventional livestock, though further research is needed to determine the long-term impact. The authors conclude that insects could serve as a more environmentally friendly source of dietary protein.According to the United Nations Food and Agriculture Organization (FAO), animal agriculture makes a "very substantial contribution" to climate change, air pollution, land, soil and water degradation, land use concerns, deforestation and the reduction of biodiversity. The high growth and intensity of animal agriculture has caused ecological damage worldwide; with meat production predicted to double from now to 2050, maintaining the status quo's environmental impact would demand a 50 percent reduction of impacts per unit of output. As the FAO states, animal livestock "emerges as one of the top two or three most significant contributors to the most serious environmental problems, at every scale from local to global." Some researchers argue that establishing sustainable production systems will depend upon a large-scale replacement of traditional livestock with edible insects; such a shift would require a major change in Western perceptions of edible insects, pressure to conserve remaining habitats, and an economic push for food systems that incorporate insects into the supply chain.In total, the emissions of the livestock sector account for 18 percent of total anthropogenic greenhouse gas emissions, a greater share than the transportation sector. Using the ratio between body growth realized and carbon production as an indicator of environmental impact, conventional agriculture practices entail substantial negative impacts as compared to entomophagy. The University of Wageningen analysis found that the CO2 production per kilogram of mass gain for the five insect species studied was 39-129% that of pigs and 12-54% that of cattle. This finding corroborates existing literature on the higher feed conversion efficiency of insects as compared to mammalian livestock. For four of the five species studied, GHG emission was "much lower than documented for pigs when expressed per kg of mass gain and only around 1% of the GHG emission for ruminants."
Economic benefits
Insects generally have a higher food conversion efficiency than more traditional meats, measured as efficiency of conversion of ingested food, or ECI. While many insects can have an energy input to protein output ratio of around 4:1, raised livestock has a ratio closer to 54:1. This is partially due to the fact that feed first needs to be grown for most traditional livestock. Additionally, endothermic (warm-blooded) vertebrates need to use a significantly greater amount of energy just to stay warm, whereas ectothermic (cold-blooded) plants or insects do not. An index that can be used as a measure is the Efficiency of conversion of ingested food to body substance: for example, only 10% of ingested food is converted to body substance by beef cattle, versus 19–31% by silkworms and 44% by German cockroaches. Studies concerning the house cricket (Acheta domesticus) provide further evidence for the efficiency of insects as a food source. When reared at 30 °C or more and fed a diet of equal quality to the diet used to rear conventional livestock, crickets showed a food conversion twice as efficient as pigs and broiler chicks, four times that of sheep, and six times higher than steers when losses in carcass trim and dressing percentage are counted.
Insects reproduce at a faster rate than beef animals. A female cricket can lay from 1,200 to 1,500 eggs in three to four weeks, while for beef the ratio is four breeding animals for each market animal produced. This gives house crickets a true food conversion efficiency almost 20 times higher than beef.
Scalability
The intentional cultivation of insects and edible arthropods for human food is now emerging in animal husbandry as an ecologically sound concept. Several analyses have found insect farming to be a more environmentally friendly alternative to traditional animal livestocking.In Thailand, two types of edible insects (cricket and palm weevil larvae) are commonly farmed in the north and south respectively. Cricket-farming approaches throughout the northeast are similar and breeding techniques have not changed much since the technology was introduced 15 years ago. Small-scale cricket farming, involving a small number of breeding tanks, is rarely found today and most of the farms are medium- or large-scale enterprises. Community cooperatives of cricket farmers have been established to disseminate information on technical farming, marketing and business issues, particularly in northeastern and northern Thailand. Cricket farming has developed into a significant animal husbandry sector and is the main source of income for a number of farmers. In 2013, there are approximately 20,000 farms operating 217,529 rearing pens. Total production over the last six years (1996-2011) has averaged around 7,500 tonnes per year.In the Western world, new agricultural technology companies have been founded in the 2010s with the aim of modernizing insect rearing techniques, permitting the scale and efficiency gains required for insects to displace other animal proteins in the human food supply.
Indigenous cultivation
Edible insects can provide economic, nutritional, and ecological advantages to the indigenous populations that raise them. For instance, the mopane worm of South Africa provides a "flagship taxon" for the conservation of mopane woodlands. Some researchers have argued that edible insects provide a unique opportunity for insect conservation by combining issues of food security and forest conservation through a solution that includes appropriate habitat management and recognition of local traditional knowledge and enterprises. Cultures in Africa have developed unique interactions with insects as a result of their traditional ecological management practices and customs. However, senior FAO forestry officer Patrick Durst claims that "Among forest managers, there is very little knowledge or appreciation of the potential for managing and harvesting insects sustainably. On the other hand, traditional forest-dwellers and forest-dependent people often possess remarkable knowledge of the insects and their management."Similarly, Julieta Ramos-Elorduy has stated that rural populations, who primarily "search, gather, fix, commercialize and store this important natural resource", do not exterminate the species which are valuable to their lives and livelihoods. According to the FAO, many experts see income opportunities for rural people involved in cultivation. However, adapting food technology and safety standards to insect-based foods would enhance these prospects by providing a clear legal foundation for insect-based foods.
Pest harvesting
Some researchers have proposed entomophagy as a solution to policy incoherence created by traditional agriculture, by which conditions are created which favor a few insect species, which then multiply and are termed "pests". In parts of Mexico, the grasshopper Sphenarium purpurascens is controlled by its capture and use as food. Such strategies allow decreased use of pesticide and create a source of income for farmers totaling nearly US$3000 per family. Environmental impact aside, some argue that pesticide use is inefficient economically due to its destruction of insects which may contain up to 75 percent animal protein in order to save crops containing no more than 14 percent protein.
Use as therapeutic foods
In 2012, Dr. Aaron T. Dossey announced that his company, All Things Bugs, had been named a Grand Challenges Explorations winner by the Bill & Melinda Gates Foundation. Grand Challenges Explorations provides funding to individuals with ideas for new approaches to public health and development. The research project is titled "Good Bugs: Sustainable Food for Malnutrition in Children". Director of pediatric nutrition at the University of Alabama at Birmingham Frank Franklin has argued that since low calories and low protein are the main causes of death for approximately five million children annually, insect protein formulated into a ready-to-use therapeutic food similar to Nutriset's Plumpy'Nut could have potential as a relatively inexpensive solution to malnutrition. In 2009, Dr. Vercruysse from Ghent University in Belgium has proposed that insect protein can be used to generate hydrolysates, exerting both ACE inhibitory and antioxidant activity, which might be incorporated as a multifunctional ingredient into functional foods. Additionally, edible insects can provide a good source of unsaturated fats, thereby helping to reduce coronary disease.
Potential as alternative pet food
There is potential for insects to be used as a protein source in insect based pet food. Novel protein sources have possible benefits for pets with sensitive gastrointestinal tracts or food allergies, as the proteins are not recognized by the animal's body, and therefore are less likely to cause irritation. Insects have also been shown to have a high palatibility to both companion and livestock animals. They have a good amino acid profile, and also contain many essential nutrients for companion animals. Insects have also been shown to have a high digestibility in pets. There have been studies done evaluating the protein quality of commonly used insects and their nutrient values in comparison to traditional pet food protein.
Disadvantages and challenges
Spoilage
Spore forming bacteria can spoil both raw and cooked insect protein, threatening to cause food poisoning. While edible insects must be processed with care, simple methods are available to prevent spoilage. Boiling before refrigeration is recommended; drying, acidification, or use in fermented foods also seem promising.
Toxicity
In general, many insects are herbivorous and less problematic than omnivores. Cooking is advisable in ideal circumstances since parasites of concern may be present. But pesticide use can make insects unsuitable for human consumption. Herbicides can accumulate in insects through bioaccumulation. For example, when locust outbreaks are treated by spraying, people can no longer eat them. This may pose a problem since edible plants have been consumed by the locusts themselves.In some cases, insects may be edible regardless of their toxicity. In the Carnia region of Italy, moths of the Zygaenidae family have been eaten by children despite their potential toxicity. The moths are known to produce hydrogen cyanide precursors in both larvae and adults. However, the crops of the adult moths contain cyanogenic chemicals in extremely low quantities along with high concentrations of sugar, making Zygaena a convenient supplementary source of sugar during the early summer. The moths are very common and easy to catch by hand, and the low cyanogenic content makes Zygaena a minimally risky seasonal delicacy.Cases of lead poisoning after consumption of chapulines were reported by the California Department of Health Services in November 2003.
Allergic reactions
Adverse allergic reactions are a potential hazard of insect consumption. Cross-reactivity between edible insects and crustaceans has been identified as clinically relevant in one review. A study on the prevalence of allergies to edible insects in Thailand indicated that:[A]pproximately 7.4% of people experienced an adverse reaction indicative of an edible-insect allergy and 14.7% of people experienced multiple adverse reactions indicative of an edible-insect allergy. Furthermore, approximately 46.2% of people that already suffer from a known food-based allergy also experienced symptoms indicative of an allergic reaction after insect consumption.
Ethical objections
The humaneness of insect consumption has been questioned. One objection is the large numbers of individuals raised and killed per unit of protein—exacerbated by a high tendency towards premature mortality—in comparison to other animal-based foods. The potential for insects to be conscious, and as a result experience pain and suffering, has also been raised as a concern.
Negative sustainability aspects
Concerns have been raised about the sustainability of insect consumption, such as overexploitation due to wild-harvesting. Food used to feed the insects raised for consumption may also have a large environmental footprint, which when scaled-up, could potentially make insect consumption similarly sustainable to traditional protein sources, negating any alleged benefit. Additionally, edible insect preservation processes such as freeze-drying and grinding may use a large amount of energy. Insect consumption has been suggested to be more sustainable than consumption of other animals.
See also
Environmental impact of meat production
Human interactions with insects
Insects as feed
Insects in medicine
Entomoculture
List of edible insects by country
Sustainable agriculture
Taboo food and drink
Welfare of farmed insects
References
Further reading
Dossey, Aaron (2013). "Why Insects Should Be in Your Diet". The Scientist. 27: 22–23.
Dossey, Morales-Ramos and Rojas (2016). Insects as Sustainable Food Ingredients: Production, Processing and Food Applications. Elsevier. ISBN 9780128028568.
Shockley and Dossey (2014). "Insects for Human Consumption". pp. 617–652. doi:10.1016/B978-0-12-391453-8.00018-2. ISBN 9780123914538. {{cite book}}: |journal= ignored (help); Missing or empty |title= (help)
Calder, Daniel. The Dietitian's Guide to Eating Bugs 2013 ebook [1]
DeFoliart, Gene (1992). "Insects as Human Food". Crop Protection. 11 (5): 395–399. doi:10.1016/0261-2194(92)90020-6. Archived from the original on 23 April 2015.
Holt, Vincent. Why Not Eat Insects? 1885 Pamphlet Full text of the 1885 pamphlet Why Not Eat Insects by Vincent Holt, with French cuisine recipes
Ichinose, Katsuya (9 February 1989). "More insect eating". Nature. 337 (6207): 513–514. Bibcode:1989Natur.337..513I. doi:10.1038/337513b0. PMID 2915701. S2CID 4345812.
Kantha, Sachi Sri. (24 November 1988). "Insect eating in Japan". Nature. 336 (6197): 316–317. Bibcode:1988Natur.336R.316K. doi:10.1038/336316b0. S2CID 41548935.
Meyer-Rochow, V.B. (January 2017). "Therapeutic arthropods and other, largely terrestrial, folk-medicinally important invertebrates: a comparative survey and review". Journal of Ethnobiology and Ethnomedicine. 13 (9): 9. doi:10.1186/s13002-017-0136-0. PMC 5296966. PMID 28173820.
Taylor, Ronald L. (1975). Butterflies in My Stomach, or, Insects in human nutrition. John Gregory Tweed (illus.). Santa Barbara, California: Woodbridge Press. ISBN 978-0-912800-08-0.
External links
"Edible insects". New Scientist. 193 (2595): 56. 2007. doi:10.1016/s0262-4079(07)60691-5. S2CID 239080242.
DeFoliart, Gene R. (29 September 2002). "The Human Use of Insects as a Food Resource: A Bibliographic Account in Progress". University of Wisconsin–Madison. Archived from the original on 24 February 2007.
Toms, Rob; Thagwana, Mashudu (2003). "Eat your bugs - harvesting edible stink-bugs". Science in Africa. Archived from the original on 16 April 2011.
Menzel, Peter; D'Aluisio, Faith (1998). Man Eating Bugs: The Art and Science of Eating Insects. Ten Speed Press. ISBN 978-1-58008-022-4.
Nejame, Sam. "Man Bites Insect" New York Times Sunday Magazine. 10 February 2008.]
Dicke, Marcel. "Why not eat insects?", TEDxAmsterdam. Retrieved 12 March 2011.
Risk profile related to production and consumption of insects as food and feed European Food Safety Authority 2015
Edible insects: Future prospects for food and feed security |
pesticide | Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide. The most common of these are herbicides, which account for approximately 50% of all pesticide use globally. Most pesticides are intended to serve as plant protection products (also known as crop protection products), which in general, protect plants from weeds, fungi, or insects. As an example, the fungus Alternaria solani is used to combat the aquatic weed Salvinia.
In general, a pesticide is a chemical (such as carbamate) or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, or spread disease, or are disease vectors. Along with these benefits, pesticides also have drawbacks, such as potential toxicity to humans and other species.
Definition
The Food and Agriculture Organization (FAO) has defined pesticide as:
any substance or mixture of substances intended for preventing, destroying, or controlling any pest, including vectors of human or animal disease, unwanted species of plants or animals, causing harm during or otherwise interfering with the production, processing, storage, transport, or marketing of food, agricultural commodities, wood and wood products or animal feedstuffs, or substances that may be administered to animals for the control of insects, arachnids, or other pests in or on their bodies. The term includes substances intended for use as a plant growth regulator, defoliant, desiccant, or agent for thinning fruit or preventing the premature fall of fruit. Also used as substances applied to crops either before or after harvest to protect the commodity from deterioration during storage and transport.Pesticides can be classified by target organism (e.g., herbicides, insecticides, fungicides, rodenticides, and pediculicides – see table), chemical structure (e.g., organic, inorganic, synthetic, or biological (biopesticide), although the distinction can sometimes blur), and physical state (e.g. gaseous (fumigant)). Biopesticides include microbial pesticides and biochemical pesticides. Plant-derived pesticides, or "botanicals", have been developing quickly. These include the pyrethroids, rotenoids, nicotinoids, and a fourth group that includes strychnine and scilliroside.: 15 Many pesticides can be grouped into chemical families. Prominent insecticide families include organochlorines, organophosphates, and carbamates. Organochlorine hydrocarbons (e.g., DDT) could be separated into dichlorodiphenyl ethanes, cyclodiene compounds, and other related compounds. They operate by disrupting the sodium/potassium balance of the nerve fiber, forcing the nerve to transmit continuously. Their toxicities vary greatly, but they have been phased out because of their persistence and potential to bioaccumulate.: 239–240 Organophosphate and carbamates largely replaced organochlorines. Both operate through inhibiting the enzyme acetylcholinesterase, allowing acetylcholine to transfer nerve impulses indefinitely and causing a variety of symptoms such as weakness or paralysis. Organophosphates are quite toxic to vertebrates and have in some cases been replaced by less toxic carbamates.: 136–137 Thiocarbamate and dithiocarbamates are subclasses of carbamates. Prominent families of herbicides include phenoxy and benzoic acid herbicides (e.g. 2,4-D), triazines (e.g., atrazine), ureas (e.g., diuron), and Chloroacetanilide (e.g., alachlor). Phenoxy compounds tend to selectively kill broad-leaf weeds rather than grasses. The phenoxy and benzoic acid herbicides function similar to plant growth hormones, and grow cells without normal cell division, crushing the plant's nutrient transport system.: 300 Triazines interfere with photosynthesis.: 335 Many commonly used pesticides are not included in these families, including glyphosate.
The application of pest control agents is usually carried out by dispersing the chemical in an (often hydrocarbon-based) solvent-surfactant system to give a homogeneous preparation. A virus lethality study performed in 1977 demonstrated that a particular pesticide did not increase the lethality of the virus. Combinations that included surfactants and the solvent clearly showed that pretreatment with them markedly increased the viral lethality in the test mice.Pesticides can be classified based upon their biological mechanism function or application method. Most pesticides work by poisoning pests. A systemic pesticide moves inside a plant following absorption by the plant. With insecticides and most fungicides, this movement is usually upward (through the xylem) and outward. Increased efficiency may be a result. Systemic insecticides, which poison pollen and nectar in the flowers, may kill bees and other needed pollinators.In 2010, the development of a new class of fungicides called paldoxins was announced. These work by taking advantage of natural defense chemicals released by plants called phytoalexins, which fungi then detoxify using enzymes. The paldoxins inhibit the fungi's detoxification enzymes. They are believed to be safer and greener.
History
Since before 2000 BC, humans have utilized pesticides to protect their crops. The first known pesticide was elemental sulfur dusting used in Sumer about 4,500 years ago in ancient Mesopotamia. By the 15th century, toxic chemicals such as arsenic, mercury, and lead were being applied to crops to kill pests. In the 17th century, nicotine sulfate was extracted from tobacco leaves for use as an insecticide. The 19th century saw the introduction of two more natural pesticides, pyrethrum, which is derived from chrysanthemums, and rotenone, which is derived from the roots of tropical vegetables. Until the 1950s, arsenic-based pesticides were dominant. Paul Müller discovered that DDT was a very effective insecticide. Chlorinates such as DDT were dominant, but they were replaced in the U.S. by organophosphates and carbamates by 1975. Since then, pyrethrin compounds have become the dominant insecticide. Herbicides became common in the 1960s, led by "triazine and other nitrogen-based compounds, carboxylic acids such as 2,4-dichlorophenoxyacetic acid, and glyphosate".The first legislation providing federal authority for regulating pesticides was enacted in 1910. During the 1940s, manufacturers produced large amounts of synthetic pesticides and their use became widespread. Before the first World War, Germany was the world's leading chemical industry and exported most of the dyes and other chemicals that were used in the United States. War implemented tariffs that stimulated the growth of the chemical industry in the U.S., which made chemistry a prestigious occupation as this industry expanded and became profitable. Money and ideas flowed back from Europe after the U.S. entered WWI, changing the way Americans interacted with themselves and nature, and the industrialization of war hastened the industrialization of pest control. Some sources consider the 1940s and 1950s to have been the start of the "pesticide era." Although the U.S. Environmental Protection Agency was established in 1970 and amendments to the pesticide law in 1972, pesticide use has increased 50-fold since 1950 and 2.3 million tonnes (2.5 million short tons) of industrial pesticides are now used each year. Seventy-five percent of all pesticides in the world are used in developed countries, but use in developing countries is increasing. A study of USA pesticide use trends through 1997 was published in 2003 by the National Science Foundation's Center for Integrated Pest Management.In the 1960s, it was discovered that DDT was preventing many fish-eating birds from reproducing, which was a serious threat to biodiversity. Rachel Carson wrote the best-selling book Silent Spring about biological magnification. The agricultural use of DDT is now banned under the Stockholm Convention on Persistent Organic Pollutants, but it is still used in some developing nations to prevent malaria and other tropical diseases by spraying on interior walls to kill or repel mosquitoes.
Development
Available pesticides are not sufficient and new developments are needed. Continued research into the basic biology of pests may identify new vulnerabilities and produce new pesticides; it may also yield pesticides with better financial and environmental characteristics than those presently used. Plant-derived pesticides, or "botanicals", have been developing quickly. These include the pyrethroids, rotenoids, nicotinoids, and a fourth group that includes strychnine and scilliroside.Fungicide resistance is increasing the proportion of inactive enantiomers in fungicide applications: The evolution of resistance necessitates research and discovery of new active ingredients, which trends away from already-discovered classes and toward more complex chemical structures. These tend to have more chiral centers more often which means more off products during synthesis.Insecticide development is being discouraged and slowed down by public sentiment surrounding the worldwide colony collapse disorder crisis. Although CCD is a serious problem, there are indications that other facts are involved, especially Cox-Foster et al. 2007's discovery that a virus is substantially to blame. (See also.) Public concern has risen, and agrochemical research companies face a challenge of image and perception. Partnering with agricultural extensions could help to remedy some of that and get pesticide research back on track.
Uses
Pesticides are used to control organisms that are considered to be harmful, or pernicious to their surroundings. For example, they are used to kill mosquitoes that can transmit potentially deadly diseases like West Nile virus, yellow fever, and malaria. They can also kill bees, wasps or ants that can cause allergic reactions. Insecticides can protect animals from illnesses that can be caused by parasites such as fleas. Pesticides can prevent sickness in humans that could be caused by moldy food or diseased produce. Herbicides can be used to clear roadside weeds, trees, and brush. They can also kill invasive weeds that may cause environmental damage. Herbicides are commonly applied in ponds and lakes to control algae and plants such as water grasses that can interfere with activities like swimming and fishing and cause the water to look or smell unpleasant. Uncontrolled pests such as termites and mold can damage structures such as houses. Pesticides are used in grocery stores and food storage facilities to manage rodents and insects that infest food such as grain. Each use of a pesticide carries some associated risk. Proper pesticide use decreases these associated risks to a level deemed acceptable by pesticide regulatory agencies such as the United States Environmental Protection Agency (EPA) and the Pest Management Regulatory Agency (PMRA) of Canada.
DDT, sprayed on the walls of houses, is an organochlorine that has been used to fight malaria since the 1950s. Recent policy statements by the World Health Organization have given stronger support to this approach. It and other organochlorine pesticides have been banned in most countries worldwide because of their persistence in the environment and human toxicity. DDT use is not always effective, as resistance to DDT was identified in Africa as early as 1955, and by 1972 nineteen species of mosquito worldwide were resistant to DDT.
Amount used
In 2006 and 2007, the world used approximately 2.4 megatonnes (5.3×109 lb) of pesticides, with herbicides constituting the biggest part of the world pesticide use at 40%, followed by insecticides (17%) and fungicides (10%). In 2006 and 2007 the U.S. used approximately 0.5 megatonnes (1.1×109 lb) of pesticides, accounting for 22% of the world total, including 857 million pounds (389 kt) of conventional pesticides, which are used in the agricultural sector (80% of conventional pesticide use) as well as the industrial, commercial, governmental and home & garden sectors. The state of California alone used 117 million pounds. Pesticides are also found in majority of U.S. households with 88 million out of the 121.1 million households indicating that they use some form of pesticide in 2012. As of 2007, there were more than 1,055 active ingredients registered as pesticides, which yield over 20,000 pesticide products that are marketed in the United States.The US used some 1 kg (2.2 pounds) per hectare of arable land compared with: 4.7 kg in China, 1.3 kg in the UK, 0.1 kg in Cameroon, 5.9 kg in Japan and 2.5 kg in Italy. Insecticide use in the US has declined by more than half since 1980 (0.6%/yr), mostly due to the near phase-out of organophosphates. In corn fields, the decline was even steeper, due to the switchover to transgenic Bt corn.
Benefits
Pesticides can save farmers' money by preventing crop losses to insects and other pests; in the U.S., farmers get an estimated fourfold return on money they spend on pesticides. One study found that not using pesticides reduced crop yields by about 10%. Another study, conducted in 1999, found that a ban on pesticides in the United States may result in a rise of food prices, loss of jobs, and an increase in world hunger.There are two levels of benefits for pesticide use, primary and secondary. Primary benefits are direct gains from the use of pesticides and secondary benefits are effects that are more long-term.
Biological
Controlling pests and plant disease vectors
Improved crop yields
Improved crop/livestock quality
Invasive species controlledControlling human/livestock disease vectors and nuisance organisms
Human lives saved and disease reduced. Diseases controlled include malaria, with millions of lives having been saved or enhanced with the use of DDT alone.
Animal lives saved and disease reducedControlling organisms that harm other human activities and structures
Drivers view unobstructed
Tree/brush/leaf hazards prevented
Wooden structures protected
Monetary
In one study, it was estimated that for every dollar ($1) that is spent on pesticides for crops can yield up to four dollars ($4) in crops saved. This means based that, on the amount of money spent per year on pesticides, $10 billion, there is an additional $40 billion savings in crop that would be lost due to damage by insects and weeds. In general, farmers benefit from having an increase in crop yield and from being able to grow a variety of crops throughout the year. Consumers of agricultural products also benefit from being able to afford the vast quantities of produce available year-round.Post- WWII conditions caused the pesticide industry to flourish for several reasons including the growing middle class and the invention of cheap tractor-drawn spraying equipment. By the 1980s the demand for pesticides had dropped due to farmers struggling financially and the market for chemicals becoming oversaturated. There were also new costs for producing pesticides due to the strict EPA laws surrounding the chemicals. The modern pesticide market is seven billion dollars and is growing 4% per year due to the invention of the lawn and the stigma surrounding the untamed yard.
Costs
On the cost side of pesticide use there can be costs to the environment, costs to human health, as well as costs of the development and research of new pesticides.
Health effects
Pesticides may cause acute and delayed health effects in people who are exposed. Pesticide exposure can cause a variety of adverse health effects, ranging from simple irritation of the skin and eyes to more severe effects such as affecting the nervous system, hearing, mimicking hormones causing reproductive problems, and also causing cancer. A 2007 systematic review found that "most studies on non-Hodgkin lymphoma and leukemia showed positive associations with pesticide exposure" and thus concluded that cosmetic use of pesticides should be decreased. There is substantial evidence of associations between organophosphate insecticide exposures and neurobehavioral alterations. Limited evidence also exists for other negative outcomes from pesticide exposure including neurological, birth defects, and fetal death.The American Academy of Pediatrics recommends limiting exposure of children to pesticides and using safer alternatives:Owing to inadequate regulation and safety precautions, 99% of pesticide-related deaths occur in developing countries that account for only 25% of pesticide usage.One study found pesticide self-poisoning the method of choice in one third of suicides worldwide, and recommended, among other things, more restrictions on the types of pesticides that are most harmful to humans.A 2014 epidemiological review found associations between autism and exposure to certain pesticides, but noted that the available evidence was insufficient to conclude that the relationship was causal.
Occupational exposure among agricultural workers
The World Health Organization and the UN Environment Programme estimate that 3 million agricultural workers in the developing world experience severe poisoning from pesticides each year, resulting in 18,000 deaths. According to one study, as many as 25 million workers in developing countries may suffer mild pesticide poisoning yearly. Other occupational exposures besides agricultural workers, including pet groomers, groundskeepers, and fumigators, may also put individuals at risk of health effects from pesticides.Pesticide use is widespread in Latin America, as around US$3 billion are spent each year in the region. Records indicate an increase in the frequency of pesticide poisonings over the past two decades. The most common incidents of pesticide poisoning is thought to result from exposure to organophosphate and carbamate insecticides. At-home pesticide use, use of unregulated products, and the role of undocumented workers within the agricultural industry makes characterizing true pesticide exposure a challenge. It is estimated that 50–80% of pesticide poisoning cases are unreported.
Underreporting of pesticide poisoning is especially common in areas where agricultural workers are less likely to seek care from a healthcare facility that may be monitoring or tracking the incidence of acute poisoning. The extent of unintentional pesticide poisoning may be much greater than available data suggest, particularly among developing countries. Globally, agriculture and food production remain one of the largest industries. In East Africa, the agricultural industry represents one of the largest sectors of the economy, with nearly 80% of its population relying on agriculture for income. Farmers in these communities rely on pesticide products to maintain high crop yields.
Some East Africa governments are shifting to corporate farming, and opportunities for foreign conglomerates to operate commercial farms have led to more accessible research on pesticide use and exposure among workers. In other areas where large proportions of the population rely on subsistence, small-scale farming, estimating pesticide use and exposure is more difficult.
Pesticide poisoning
Pesticides may exhibit toxic effects on humans and other non-target species, the severity of which depends on the frequency and magnitude of exposure. Toxicity also depends on the rate of absorption, distribution within the body, metabolism, and elimination of compounds from the body. Commonly used pesticides like organophosphates and carbamates act by inhibiting acetylcholinesterase activity, which prevents the breakdown of acetylcholine at the neural synapse. Excess acetylcholine can lead to symptoms like muscle cramps or tremors, confusion, dizziness and nausea. Studies show that farm workers in Ethiopia, Kenya, and Zimbabwe have decreased concentrations of plasma acetylcholinesterase, the enzyme responsible for breaking down acetylcholine acting on synapses throughout the nervous system. Other studies in Ethiopia have observed reduced respiratory function among farm workers who spray crops with pesticides. Numerous exposure pathways for farm workers increase the risk of pesticide poisoning, including dermal absorption walking through fields and applying products, as well as inhalation exposure.
Measuring exposure to pesticides
There are multiple approaches to measuring a person's exposure to pesticides, each of which provides an estimate of an individual's internal dose. Two broad approaches include measuring biomarkers and markers of biological effect. The former involves taking direct measurement of the parent compound or its metabolites in various types of media: urine, blood, serum. Biomarkers may include a direct measurement of the compound in the body before it's been biotransformed during metabolism. Other suitable biomarkers may include the metabolites of the parent compound after they've been biotransformed during metabolism. Toxicokinetic data can provide more detailed information on how quickly the compound is metabolized and eliminated from the body, and provide insights into the timing of exposure.
Markers of biological effect provide an estimation of exposure based on cellular activities related to the mechanism of action. For example, many studies investigating exposure to pesticides often involve the quantification of the acetylcholinesterase enzyme at the neural synapse to determine the magnitude of the inhibitory effect of organophosphate and carbamate pesticides.Another method of quantifying exposure involves measuring, at the molecular level, the amount of pesticide interacting with the site of action. These methods are more commonly used for occupational exposures where the mechanism of action is better understood, as described by WHO guidelines published in "Biological Monitoring of Chemical Exposure in the Workplace". Better understanding of how pesticides elicit their toxic effects is needed before this method of exposure assessment can be applied to occupational exposure of agricultural workers.
Alternative methods to assess exposure include questionnaires to discern from participants whether they are experiencing symptoms associated with pesticide poisoning. Self-reported symptoms may include headaches, dizziness, nausea, joint pain, or respiratory symptoms.
Challenges in assessing pesticide exposure
Multiple challenges exist in assessing exposure to pesticides in the general population, and many others that are specific to occupational exposures of agricultural workers. Beyond farm workers, estimating exposure to family members and children presents additional challenges, and may occur through "take-home" exposure from pesticide residues collected on clothing or equipment belonging to parent farm workers and inadvertently brought into the home. Children may also be exposed to pesticides prenatally from mothers who are exposed to pesticides during pregnancy. Characterizing children's exposure resulting from drift of airborne and spray application of pesticides is similarly challenging, yet well documented in developing countries. Because of critical development periods of the fetus and newborn children, these non-working populations are more vulnerable to the effects of pesticides, and may be at increased risk of developing neurocognitive effects and impaired development.While measuring biomarkers or markers of biological effects may provide more accurate estimates of exposure, collecting these data in the field is often impractical and many methods are not sensitive enough to detect low-level concentrations. Rapid cholinesterase test kits exist to collect blood samples in the field. Conducting large scale assessments of agricultural workers in remote regions of developing countries makes the implementation of these kits a challenge. The cholinesterase assay is a useful clinical tool to assess individual exposure and acute toxicity. Considerable variability in baseline enzyme activity among individuals makes it difficult to compare field measurements of cholinesterase activity to a reference dose to determine health risk associated with exposure. Another challenge researchers face in deriving a reference dose is identifying health endpoints that are relevant to exposure. More epidemiological research is needed to identify critical health endpoints, particularly among populations who are occupationally exposed.
Prevention
Minimizing harmful exposure to pesticides can be achieved by proper use of personal protective equipment, adequate reentry times into recently sprayed areas, and effective product labeling for hazardous substances as per FIFRA regulations. Training high-risk populations, including agricultural workers, on the proper use and storage of pesticides, can reduce the incidence of acute pesticide poisoning and potential chronic health effects associated with exposure. Continued research into the human toxic health effects of pesticides serves as a basis for relevant policies and enforceable standards that are health protective to all populations.
Environmental effects
Pesticide use raises a number of environmental concerns. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, including non-target species, air, water and soil. Pesticide drift occurs when pesticides suspended in the air as particles are carried by wind to other areas, potentially contaminating them. Pesticides are one of the causes of water pollution, and some pesticides are persistent organic pollutants and contribute to soil and flower (pollen, nectar) contamination. Furthermore, pesticide use can adversely impact neighboring agricultural activity, as pests themselves drift to and harm nearby crops that have no pesticide used on them.In addition, pesticide use reduces biodiversity, contributes to pollinator decline, destroys habitat (especially for birds), and threatens endangered species. Pests can develop a resistance to the pesticide (pesticide resistance), necessitating a new pesticide. Alternatively a greater dose of the pesticide can be used to counteract the resistance, although this will cause a worsening of the ambient pollution problem.
The Stockholm Convention on Persistent Organic Pollutants, listed 9 of the 12 most dangerous and persistent organic chemicals that were (now mostly obsolete) organochlorine pesticides. Since chlorinated hydrocarbon pesticides dissolve in fats and are not excreted, organisms tend to retain them almost indefinitely. Biological magnification is the process whereby these chlorinated hydrocarbons (pesticides) are more concentrated at each level of the food chain. Among marine animals, pesticide concentrations are higher in carnivorous fishes, and even more so in the fish-eating birds and mammals at the top of the ecological pyramid. Global distillation is the process whereby pesticides are transported from warmer to colder regions of the Earth, in particular the Poles and mountain tops. Pesticides that evaporate into the atmosphere at relatively high temperature can be carried considerable distances (thousands of kilometers) by the wind to an area of lower temperature, where they condense and are carried back to the ground in rain or snow.In order to reduce negative impacts, it is desirable that pesticides be degradable or at least quickly deactivated in the environment. Such loss of activity or toxicity of pesticides is due to both innate chemical properties of the compounds and environmental processes or conditions. For example, the presence of halogens within a chemical structure often slows down degradation in an aerobic environment. Adsorption to soil may retard pesticide movement, but also may reduce bioavailability to microbial degraders.
Economics
In one study, the human health and environmental costs due to pesticides in the United States was estimated to be $9.6 billion: offset by about $40 billion in increased agricultural production.Additional costs include the registration process and the cost of purchasing pesticides: which are typically borne by agrichemical companies and farmers respectively. The registration process can take several years to complete (there are 70 different types of field tests) and can cost $50–70 million for a single pesticide. At the beginning of the 21st century, the United States spent approximately $10 billion on pesticides annually.
Resistance
The use of pesticides inherently entails the risk of resistance developing. Various techniques and procedures of pesticide application can slow the development of resistance, as can some natural features of the target population and surrounding environment.
Alternatives
Alternatives to pesticides are available and include methods of cultivation, use of biological pest controls (such as pheromones and microbial pesticides), genetic engineering (mostly of crops), and methods of interfering with insect breeding. Application of composted yard waste has also been used as a way of controlling pests.These methods are becoming increasingly popular and often are safer than traditional chemical pesticides. In addition, EPA is registering reduced-risk pesticides in increasing numbers.
Cultivation practices
Cultivation practices include polyculture (growing multiple types of plants), crop rotation, planting crops in areas where the pests that damage them do not live, timing planting according to when pests will be least problematic, and use of trap crops that attract pests away from the real crop. Trap crops have successfully controlled pests in some commercial agricultural systems while reducing pesticide usage. In other systems, trap crops can fail to reduce pest densities at a commercial scale, even when the trap crop works in controlled experiments.
Use of other organisms
Release of other organisms that fight the pest is another example of an alternative to pesticide use. These organisms can include natural predators or parasites of the pests. Biological pesticides based on entomopathogenic fungi, bacteria and viruses causing disease in the pest species can also be used.
Biological control engineering
Interfering with insects' reproduction can be accomplished by sterilizing males of the target species and releasing them, so that they mate with females but do not produce offspring. This technique was first used on the screwworm fly in 1958 and has since been used with the medfly, the tsetse fly, and the gypsy moth. This is a costly and slow approach that only works on some types of insects.
Other alternatives
Other alternatives include "laserweeding" – the use of novel agricultural robots for weed control using lasers.
Push pull strategy
The term "push-pull" was established in 1987 as an approach for integrated pest management (IPM). This strategy uses a mixture of behavior-modifying stimuli to manipulate the distribution and abundance of insects. "Push" means the insects are repelled or deterred away from whatever resource is being protected. "Pull" means that certain stimuli (semiochemical stimuli, pheromones, food additives, visual stimuli, genetically altered plants, etc.) are used to attract pests to trap crops where they will be killed. There are numerous different components involved in order to implement a Push-Pull Strategy in IPM.
Many case studies testing the effectiveness of the push-pull approach have been done across the world. The most successful push-pull strategy was developed in Africa for subsistence farming. Another successful case study was performed on the control of Helicoverpa in cotton crops in Australia. In Europe, the Middle East, and the United States, push-pull strategies were successfully used in the controlling of Sitona lineatus in bean fields.Some advantages of using the push-pull method are less use of chemical or biological materials and better protection against insect habituation to this control method. Some disadvantages of the push-pull strategy are that if there is a lack of appropriate knowledge of the behavioral and chemical ecology of the host-pest interactions then this method becomes unreliable. Furthermore, because the push-pull method is not a very popular method of IPM operational and registration costs are higher.
Effectiveness
Some evidence shows that alternatives to pesticides can be equally effective as the use of chemicals. A study of Maize fields in northern Florida found that the application of composted yard waste with high carbon to nitrogen ratio to agricultural fields was highly effective at reducing the population of plant-parasitic nematodes and increasing crop yield, with yield increases ranging from 10% to 212%; the observed effects were long-term, often not appearing until the third season of the study. Additional silicon nutrition protects some horticultural crops against fungal diseases almost completely, while insufficient silicon sometimes leads to severe infection even when fungicides are used.Pesticide resistance is increasing and that may make alternatives more attractive.
Types
Pesticides are often referred to according to the type of pest they control. Pesticides can also be considered as either biodegradable pesticides, which will be broken down by microbes and other living beings into harmless compounds, or persistent pesticides, which may take months or years before they are broken down: it was the persistence of DDT, for example, which led to its accumulation in the food chain and its killing of birds of prey at the top of the food chain. Another way to think about pesticides is to consider those that are chemical pesticides are derived from a common source or production method.
Insecticides
Neonicotinoids are a class of neuro-active insecticides chemically similar to nicotine. Imidacloprid, of the neonicotinoid family, is the most widely used insecticide in the world. In the late 1990s neonicotinoids came under increasing scrutiny over their environmental impact and were linked in a range of studies to adverse ecological effects, including honey-bee colony collapse disorder (CCD) and loss of birds due to a reduction in insect populations. In 2013, the European Union and a few non EU countries restricted the use of certain neonicotinoids.Organophosphate and carbamate insecticides have a similar mode of action. They affect the nervous system of target pests (and non-target organisms) by disrupting acetylcholinesterase activity, the enzyme that regulates acetylcholine, at nerve synapses. This inhibition causes an increase in synaptic acetylcholine and overstimulation of the parasympathetic nervous system. Many of these insecticides, first developed in the mid 20th century, are very poisonous. Although commonly used in the past, many older chemicals have been removed from the market due to their health and environmental effects (e.g. DDT, chlordane, and toxaphene). Many organophosphates do not persist in the environment.
Pyrethroid insecticides were developed as a synthetic version of the naturally occurring pesticide pyrethrin, which is found in chrysanthemums. They have been modified to increase their stability in the environment. Some synthetic pyrethroids are toxic to the nervous system.
Herbicides
A number of sulfonylureas have been commercialized for weed control, including: amidosulfuron, flazasulfuron, metsulfuron-methyl, rimsulfuron, sulfometuron-methyl, terbacil, nicosulfuron, and triflusulfuron-methyl. These are broad-spectrum herbicides that kill plants weeds or pests by inhibiting the enzyme acetolactate synthase. In the 1960s, more than 1 kg/ha (0.89 lb/acre) crop protection chemical was typically applied, while sulfonylureates allow as little as 1% as much material to achieve the same effect.
Biopesticides
Biopesticides are certain types of pesticides derived from such natural materials as animals, plants, bacteria, and certain minerals. For example, canola oil and baking soda have pesticidal applications and are considered biopesticides. Biopesticides fall into three major classes:
Microbial pesticides which consist of bacteria, entomopathogenic fungi or viruses (and sometimes includes the metabolites that bacteria or fungi produce). Entomopathogenic nematodes are also often classed as microbial pesticides, even though they are multi-cellular.
Biochemical pesticides or herbal pesticides are naturally occurring substances that control (or monitor in the case of pheromones) pests and microbial diseases.
Plant-incorporated protectants (PIPs) have genetic material from other species incorporated into their genetic material (i.e. GM crops). Their use is controversial, especially in many European countries.
By pest type
Pesticides that are related to the type of pests are:
Further types
The term pesticide also includes these substances:
Defoliants: Cause leaves or other foliage to drop from a plant, usually to facilitate harvest.
Desiccants: Promote drying of living tissues, such as unwanted plant tops.
Insect growth regulators: Disrupt the molting, maturity from pupal stage to adult, or other life processes of insects.
Plant growth regulators: Substances (excluding fertilizers or other plant nutrients) that alter the expected growth, flowering, or reproduction rate of plants.
Soil sterilant: a chemical that temporarily or permanently prevents the growth of all plants and animals, depending on the chemical. Soil sterilants must be registered as pesticides.
Wood preservatives: They are used to make wood resistant to insects, fungus, and other pests.
Gene drives, a complex genetic mechanism which can be embedded into the genetic material of the target species itself. Instead of killing the target individual it can, kill, eliminate the reproduction of, or suppress the reproductive rate of its descendants. This changes the target population in a more pervasive way and has few or no off-target effects.
Regulation
International
In many countries, pesticides must be approved for sale and use by a government agency.Worldwide, 85% of countries have pesticide legislation for the proper storage of pesticides and 51% include provisions to ensure proper disposal of all obsolete pesticides.In Europe, EU legislation has been approved banning the use of highly toxic pesticides including those that are carcinogenic, mutagenic or toxic to reproduction, those that are endocrine-disrupting, and those that are persistent, bioaccumulative and toxic (PBT) or very persistent and very bioaccumulative (vPvB) and measures have been approved to improve the general safety of pesticides across all EU member states.Though pesticide regulations differ from country to country, pesticides, and products on which they were used are traded across international borders. To deal with inconsistencies in regulations among countries, delegates to a conference of the United Nations Food and Agriculture Organization adopted an International Code of Conduct on the Distribution and Use of Pesticides in 1985 to create voluntary standards of pesticide regulation for different countries. The Code was updated in 1998 and 2002. The FAO claims that the code has raised awareness about pesticide hazards and decreased the number of countries without restrictions on pesticide use.Three other efforts to improve regulation of international pesticide trade are the United Nations London Guidelines for the Exchange of Information on Chemicals in International Trade and the United Nations Codex Alimentarius Commission. The former seeks to implement procedures for ensuring that prior informed consent exists between countries buying and selling pesticides, while the latter seeks to create uniform standards for maximum levels of pesticide residues among participating countries.Pesticides safety education and pesticide applicator regulation are designed to protect the public from pesticide misuse, but do not eliminate all misuse. Reducing the use of pesticides and choosing less toxic pesticides may reduce risks placed on society and the environment from pesticide use. Integrated pest management, the use of multiple approaches to control pests, is becoming widespread and has been used with success in countries such as Indonesia, China, Bangladesh, the U.S., Australia, and Mexico. IPM attempts to recognize the more widespread impacts of an action on an ecosystem, so that natural balances are not upset. New pesticides are being developed, including biological and botanical derivatives and alternatives that are thought to reduce health and environmental risks. In addition, applicators are being encouraged to consider alternative controls and adopt methods that reduce the use of chemical pesticides.
Pesticides can be created that are targeted to a specific pest's lifecycle, which can be environmentally more friendly. For example, potato cyst nematodes emerge from their protective cysts in response to a chemical excreted by potatoes; they feed on the potatoes and damage the crop. A similar chemical can be applied to fields early before the potatoes are planted, causing the nematodes to emerge early and starve in the absence of potatoes.
United States
In the United States, the Environmental Protection Agency (EPA) is responsible for regulating pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and the Food Quality Protection Act (FQPA).Studies must be conducted to establish the conditions in which the material is safe to use and the effectiveness against the intended pest(s). The EPA regulates pesticides to ensure that these products do not pose adverse effects to humans or the environment, with an emphasis on the health and safety of children. Pesticides produced before November 1984 continue to be reassessed in order to meet the current scientific and regulatory standards. All registered pesticides are reviewed every 15 years to ensure they meet the proper standards. During the registration process, a label is created. The label contains directions for proper use of the material in addition to safety restrictions. Based on acute toxicity, pesticides are assigned to a Toxicity Class. Pesticides are the most thoroughly tested chemicals after drugs in the United States; those used on food require more than 100 tests to determine a range of potential impacts.Some pesticides are considered too hazardous for sale to the general public and are designated restricted use pesticides. Only certified applicators, who have passed an exam, may purchase or supervise the application of restricted use pesticides. Records of sales and use are required to be maintained and may be audited by government agencies charged with the enforcement of pesticide regulations. These records must be made available to employees and state or territorial environmental regulatory agencies.In addition to the EPA, the United States Department of Agriculture (USDA) and the United States Food and Drug Administration (FDA) set standards for the level of pesticide residue that is allowed on or in crops. The EPA looks at what the potential human health and environmental effects might be associated with the use of the pesticide.In addition, the U.S. EPA uses the National Research Council's four-step process for human health risk assessment: (1) Hazard Identification, (2) Dose-Response Assessment, (3) Exposure Assessment, and (4) Risk Characterization.In 2013 Kaua'i County (Hawai'i) passed Bill No. 2491 to add an article to Chapter 22 of the county's code relating to pesticides and GMOs. The bill strengthens protections of local communities in Kaua'i where many large pesticide companies test their products.
Canada
EU
In 2023 The Environment Committee of European Parliament approved a decision aiming to reduce pesticide use by 50% (the most hazardous by 65%) by the year 2030 and ensure sustainable use of pesticides (for example use them only as a last resort). The decision also includes measures for providing farmers with alternatives.
Residue
Pesticide residue refers to the pesticides that may remain on or in food after they are applied to food crops. The maximum allowable levels of these residues in foods are often stipulated by regulatory bodies in many countries. Regulations such as pre-harvest intervals also often prevent harvest of crop or livestock products if recently treated in order to allow residue concentrations to decrease over time to safe levels before harvest. Exposure of the general population to these residues most commonly occurs through consumption of treated food sources, or being in close contact to areas treated with pesticides such as farms or lawns.Many of these chemical residues, especially derivatives of chlorinated pesticides, exhibit bioaccumulation which could build up to harmful levels in the body as well as in the environment. The problem is most acute in China, the largest producer of chlorinated pesticides. Persistent chemicals can be magnified through the food chain and have been detected in products ranging from meat, poultry, and fish, to vegetable oils, nuts, and various fruits and vegetables.Pesticide contamination in the environment can be monitored through bioindicators such as bee pollinators.There is an ongoing research focused on pesticide residues in farming system.
See also
Index of pesticide articles
Environmental hazard
Pest control
Pesticide residue
Pesticide standard value
WHO Pesticide Evaluation Scheme
References
Bibliography
Davis, Frederick Rowe. "Pesticides and the perils of synecdoche in the history of science and environmental history." History of Science 57.4 (2019): 469–492.
Davis, Frederick Rowe. Banned: a history of pesticides and the science of toxicology (Yale UP, 2014).
Matthews, Graham A. A history of pesticides (CABI, 2018).
S.Safe; H.Plugge; J.F.S.Crocker (1977). "Analysis of an aromatic solvent used in a forest spray program". Chemosphere. 6 (10): 641–651. Bibcode:1977Chmsp...6..641S. doi:10.1016/0045-6535(77)90075-3.
External links
Pesticides at the World Health Organization (WHO)
Pesticides at the United Nations Environment Programme (UNEP)
Pesticides at the European Commission
Pesticides at the United States Environmental Protection Agency. |
agricultural science | Agricultural science (or agriscience for short) is a broad multidisciplinary field of biology that encompasses the parts of exact, natural, economic and social sciences that are used in the practice and understanding of agriculture. Professionals of the agricultural science are called agricultural scientists or agriculturists.
History
In the 18th century, Johann Friedrich Mayer conducted experiments on the use of gypsum (hydrated calcium sulphate) as a fertilizer.In 1843, John Bennet Lawes and Joseph Henry Gilbert began a set of long-term field experiments at Rothamsted Research in England, some of which are still running as of 2018.In the United States, a scientific revolution in agriculture began with the Hatch Act of 1887, which used the term "agricultural science". The Hatch Act was driven by farmers' interest in knowing the constituents of early artificial fertilizer. The Smith–Hughes Act of 1917 shifted agricultural education back to its vocational roots, but the scientific foundation had been built. For the next 44 years after 1906, federal expenditures on agricultural research in the United States outpaced private expenditures.: xxi
Prominent agricultural scientists
Wilbur Olin Atwater
Robert Bakewell
Norman Borlaug
Luther Burbank
George Washington Carver
Carl Henry Clerk
George C. Clerk
René Dumont
Sir Albert Howard
Kailas Nath Kaul
Thomas Lecky
Justus von Liebig
Jay Laurence Lush
Gregor Mendel
Louis Pasteur
M. S. Swaminathan
Jethro Tull
Artturi Ilmari Virtanen
Sewall Wright
Fields or related disciplines
Scope
Agriculture, agricultural science, and agronomy are often confused. However, they cover different concepts:
Agriculture is the set of activities that transform the environment for the production of animals and plants for human use. Agriculture concerns techniques, including the application of agronomic research.
Agronomy is research and development related to studying and improving plant-based crops.
Soil forming factors and soil degradation
Agricultural sciences include research and development on:
Improving agricultural productivity in terms of quantity and quality (e.g., selection of drought-resistant crops and animals, development of new pesticides, yield-sensing technologies, simulation models of crop growth, in-vitro cell culture techniques)
Minimizing the effects of pests (weeds, insects, pathogens, mollusks, nematodes) on crop or animal production systems.
Transformation of primary products into end-consumer products (e.g., production, preservation, and packaging of dairy products)
Prevention and correction of adverse environmental effects (e.g., soil degradation, waste management, bioremediation)
Theoretical production ecology, relating to crop production modeling
Traditional agricultural systems, sometimes termed subsistence agriculture, which feed most of the poorest people in the world. These systems are of interest as they sometimes retain a level of integration with natural ecological systems greater than that of industrial agriculture, which may be more sustainable than some modern agricultural systems.
Food production and demand on a global basis, with special attention paid to the major producers, such as China, India, Brazil, the US and the EU.
Various sciences relating to agricultural resources and the environment (e.g. soil science, agroclimatology); biology of agricultural crops and animals (e.g. crop science, animal science and their included sciences, e.g. ruminant nutrition, farm animal welfare); such fields as agricultural economics and rural sociology; various disciplines encompassed in agricultural engineering.
See also
Agricultural Research Council
Agricultural sciences basic topics
Agriculture ministry
Agroecology
American Society of Agronomy
Genomics of domestication
History of agricultural science
Institute of Food and Agricultural Sciences
International Assessment of Agricultural Science and Technology for Development
International Food Policy Research Institute, IFPRI
List of agriculture topics
National FFA Organization
Research Institute of Crop Production (RICP) (in the Czech Republic)
University of Agricultural Sciences
References
Further reading
Agricultural Research, Livelihoods, and Poverty: Studies of Economic and Social Impacts in Six Countries Edited by Michelle Adato and Ruth Meinzen-Dick (2007), Johns Hopkins University Press Food Policy Report
Claude Bourguignon, Regenerating the Soil: From Agronomy to Agrology, Other India Press, 2005
Pimentel David, Pimentel Marcia, Computer les kilocalories, Cérès, n. 59, sept-oct. 1977
Russell E. Walter, Soil conditions and plant growth, Longman group, London, New York 1973
Salamini, Francesco; Özkan, Hakan; Brandolini, Andrea; Schäfer-Pregl, Ralf; Martin, William (2002). "Genetics and geography of wild cereal domestication in the near east". Nature Reviews Genetics. 3 (6): 429–441. doi:10.1038/nrg817. PMID 12042770. S2CID 25166879.
Saltini Antonio, Storia delle scienze agrarie, 4 vols, Bologna 1984–89, ISBN 88-206-2412-5, ISBN 88-206-2413-3, ISBN 88-206-2414-1, ISBN 88-206-2415-X
Vavilov Nicolai I. (Starr Chester K. editor), The Origin, Variation, Immunity and Breeding of Cultivated Plants. Selected Writings, in Chronica botanica, 13: 1–6, Waltham, Mass., 1949–50
Vavilov Nicolai I., World Resources of Cereals, Leguminous Seed Crops and Flax, Academy of Sciences of Urss, National Science Foundation, Washington, Israel Program for Scientific Translations, Jerusalem 1960
Winogradsky Serge, Microbiologie du sol. Problèmes et methodes. Cinquante ans de recherches, Masson & c.ie, Paris 1949
External links
Consultative Group on International Agricultural Research (CGIAR)
Agricultural Research Service
Indian Council of Agricultural Research
International Institute of Tropical Agriculture
International Livestock Research Institute
The National Agricultural Library (NAL) - The most comprehensive agricultural library in the world.
Crop Science Society of America
American Society of Agronomy
Soil Science Society of America
Agricultural Science Researchers, Jobs and Discussions
Information System for Agriculture and Food Research
NMSU Department of Entomology Plant Pathology and Weed Science |