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Less than half of published scientists endorse global warming

They often feed on a variety of plant life, including berries, grasses, flowers, acorns and pine cones, as well as fungi such as mushrooms.

A number of independent studies using near-global satellite data find positive feedback and high climate sensitivity.

Observations and modelling studies indicate that there is a net positive feedback to warming.

Methane plays a minor role in global warming but could get much worse if permafrost starts to melt.

Arctic amplification also causes methane to be released as permafrost melts, which is expected to surpass land use changes as the second strongest anthropogenic source of greenhouse gases by the end of the century.

“Typically, in such an attribution study, scientists will use sets of climate models — one set including the factors that drive human global warming and the other including purely “natural” factors — and see if an event like the one in question is more likely to occur in the first set of models.

The clear message from fingerprint studies is that the observed warming over the last half-century cannot be explained by natural factors, and is instead caused primarily by human factors.

The CO2 amplifies the warming and mixes through the atmosphere, spreading warming throughout the planet.

The greenhouse effect is a process by which thermal radiation from a planetary atmosphere warms the planet's surface beyond the temperature it would have in the absence of its atmosphere.

The Petition Project features over 31,000 scientists signing the petition stating "there is no convincing scientific evidence that human release of carbon dioxide will, in the forseeable future, cause catastrophic heating of the Earth's atmosphere".

Over 1,500 tons of carbon dioxide per year can be eliminated by using a one-megawatt turbine instead of one megawatt of energy from a fossil fuel.

Global warming is increasing the risk of heatwaves.

Many regions have probably already seen increases in warm spells and heat waves, and it is virtually certain that these changes will continue over the 21st century.

Global temperature is still rising and 2010 was the hottest recorded.

Global warming is the long-term rise in the average temperature of the Earth's climate system.

Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.

Observation with satellites show that Arctic sea ice area, extent, and volume have been in decline for a few decades.

Droughts and floods have not changed since we’ve been using fossil fuels

Changes in regional climate are expected to include greater warming over land, with most warming at high northern latitudes, and least warming over the Southern Ocean and parts of the North Atlantic Ocean.

While geologists have studied events in the past similar to what appears to be happening today, scientists are largely unsure of what lies ahead.

Their studies are used to warn the general public of the occurrence of these events.

CO2 changes are closely related to temperature.

They still manage to consume some seals, but they are food-deprived in summer as only marine mammal carcasses are an important alternative without sea ice, especially carcasses of the beluga whale.

CO2 increase is natural, not human-caused.

It is likely that anthropogenic (i.e., human-induced) warming, such as that due to elevated greenhouse gas levels, has had a discernible influence on many physical and biological systems.

Global surface temperatures have continued to rise steadily beneath short-term natural cooling effects, and the rise in global heat content has not slowed at all.

In the scientific literature, there is an overwhelming consensus that global surface temperatures have increased in recent decades and that the trend is caused mainly by human-induced emissions of greenhouse gases.

the climate models have overestimated the amount of global warming and failed to predict what climatologists call the warming ‘hiatus’

All these effects can combine to produce a dramatic drop in sea surface temperature over a large area in just a few days.

More than 260,000 Americans are employed by the domestic solar industry — three times as many workers as employed by the entire coal mining industry.

Natural gas is thus a more potent greenhouse gas than carbon dioxide due to the greater global-warming potential of methane.

'Gore claims the snowcap atop Africa's Mt. Kilimanjaro is shrinking and that global warming is to blame.

There are currently 11 small glaciers, which are shrinking rapidly, and will likely be gone forever by 2050, due to global warming[citation needed].

The planet's average surface temperature has risen about 1.62 degrees Fahrenheit (0.9 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere.

Consistent with Schmidt's comment, the NASA / NOAA announcement stated that "globally-averaged temperatures in 2016 were 1.78 degrees Fahrenheit (0.99 degrees Celsius) warmer than the mid-20th century mean" and that the impact of El Niño warming was estimated to have "increased the annual global temperature anomaly for 2016 by 0.2 degrees Fahrenheit (0.12 degrees Celsius)."

Consequently, the total amount of Arctic sea ice in 2008 and 2009 are the lowest on record.

More precise data gathered from satellite radar measurements reveal an accelerating rise of 7.5 cm (3.0 in) from 1993 to 2017, which is a trend of roughly 30 cm (12 in) per century.

(Kerr 2007) points out that the sunlight-reflecting haze that cools much of the planet seems to have thinned over the past decade or so.

Conversely, haze in Titan's atmosphere contributes to an anti-greenhouse effect by reflecting sunlight back into space, cancelling a portion of the greenhouse effect and making its surface significantly colder than its upper atmosphere.

Because the collapse of vulnerable parts of the ice sheet could raise the sea level dramatically, the continued existence of the world’s great coastal cities — Miami, New York, Shanghai and many more — is tied to Antarctica’s fate.

A rapid collapse of the West Antarctic Ice Sheet could raise sea level by 3.3 metres (11 ft).

As it happens, the writer of that October 2009 e-mail—Kevin Trenberth, a lead author of the warmist bible, the 2007 Intergovernmental Panel on Climate Change (IPCC) report—told Congress two years ago that evidence for manmade warming is "unequivocal.

The New York Times reported that "the leading international network of climate scientists has concluded for the first time that global warming is 'unequivocal' and that human activity is the main driver, 'very likely' causing most of the rise in temperatures since 1950".

“ NASA concurred with NOAA, also declaring 2016 the warmest year on record in its own data set that tracks the temperatures at the surface of the planet’s land and oceans, and expressing ‘greater than 95 percent certainty’ in that conclusion.

Consistent with Schmidt's comment, the NASA / NOAA announcement stated that "globally-averaged temperatures in 2016 were 1.78 degrees Fahrenheit (0.99 degrees Celsius) warmer than the mid-20th century mean" and that the impact of El Niño warming was estimated to have "increased the annual global temperature anomaly for 2016 by 0.2 degrees Fahrenheit (0.12 degrees Celsius)."

(Kerr 2007) points out that the sunlight-reflecting haze that cools much of the planet seems to have thinned over the past decade or so.

Human-caused increases in greenhouse gases are responsible for most of the observed global average surface warming of roughly 0.8 °C (1.5 °F) over the past 140 years.

With more CO2 in the atmosphere, the challenge [feeding 2.5 billion more people] can and will be met.

Danish physicist Henrik Svensmark has controversially argued that because solar variation modulates the cosmic ray flux on Earth, they would consequently affect the rate of cloud formation and hence be an indirect cause of global warming.

Over time, climate becomes a net problem: by the 2070s, the UN Climate Panel finds that global warming will likely cause damage equivalent to 0.2 per cent to 2 per cent of global GDP.

The maximum rainfall and wind speed from hurricanes and typhoons are likely increasing.

Global temperature is still rising and 2010 was the hottest recorded.

In Israel, the year 2010 was the hottest on record, and average temperatures were 2-3 degrees Celsius higher than the average.

Humans have been through climate changes before- but mostly cold ones and

Their ultimate extinction coincides with Heinrich event 4, a period of intense cold and dry climate causing their preferred forest landscape to give way to steppeland, and future Heinrich events are also associated with massive cultural turnovers where European human populations collapsed.

Global warming is causing snow to disappear.

The IPCC's attribution of recent global warming to human activities is a view shared by the scientific community, and is also supported by 196 other scientific organizations worldwide (see also: Scientific consensus on climate change).

HFCs (hydrofluorocarbons) are tens of thousands of times more polluting than carbon dioxide.

They do not harm the ozone layer as much as the compounds they replace, but they do contribute to global warming, with thousands of times the warming potential of carbon dioxide.

"Global warming is mostly due to heat production by human industry since the 1800s, from nuclear power and fossil fuels, better termed hydrocarbons, – coal, oil, natural gas.

Burning hydrocarbons as fuel, producing carbon dioxide and water, is a major contributor to anthropogenic global warming.

a new study by scientists at the Australian Research Council finds that the ongoing bleaching event is mainly due to human-caused global warming, and that if global warming proceeds as currently expected, “large parts” of the Great Barrier Reef could die by the mid-2030s.

Between 1993 and 2017, the global mean sea level rose on average by 3.1 ± 0.3 mm per year, with an acceleration detected as well.

Etna has already put more than 10,000 times the CO2 into the atmosphere than mankind has in our entire time on the Earth.

In the modern era, emissions to the atmosphere from volcanoes are approximately 0.645 billion tonnes of CO 2 per year, whereas humans contribute 29 billion tonnes of CO 2 each year.

But [climate scientists] say that aspects of the case of Hurricane Harvey—and the recent history of tropical cyclones worldwide—suggest global warming is making a bad situation worse.

Currently, surface temperatures are rising by about 0.2 °C per decade.

there has been no increase in frequency or intensity of storms, floods or droughts, while deaths attributed to such natural disasters have never been fewer

In August, the NOAA CPC predicted that the 2015 El Niño "could be among the strongest in the historical record dating back to 1950."

The heatwave we now have in Europe is not something that was expected with just 1C of warming

Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.

Over the three years from 1979 to 1982 when CO2 emissions were decreasing due to the rapid increase in the price of oil that drastically reduced consumption, there was no change in the rate of increase in atmospheric concentration of CO2 proving that humans were not the primary source for the increase in concentration.'

Between the period 1970 to 2004, greenhouse gas emissions (measured in CO 2-equivalent) increased at an average rate of 1.6% per year, with CO 2 emissions from the use of fossil fuels growing at a rate of 1.9% per year.

It also concludes that current northern hemisphere surface air temperatures are significantly higher than during the peak of the Medieval Warm Period (MWP).

He wrote that this graph "asserts that temperatures during the Medieval Warm Period were higher than those of today", and described climate changes as due to solar variation.

But more than 7% of deaths are related to cold—counting hypothermia, as well as increased blood pressure and risk of heart attack that results when the body restricts blood flow in response to frigid temperatures.”

Measurements by Jason-1 indicate that mean sea level has been rising at an average rate of 2.28 millimeters (.09 inches) per year since 2001.

Thousands of coral atolls have "drowned" when unable to grow fast enough to survive at sea level.

Donald Trump, the 45th and current President of the United States, has said that "climate change is a hoax invented by and for Chinese."

Barack Obama and Joe Biden will establish a 10 percent federal Renewable Portfolio Standard (RPS) to require that 10 percent of electricity consumed in the U.S. is derived from clean, sustainable energy sources, like solar, wind and geothermal by 2012.

Other plans include making society carbon neutral and using renewable energy, including solar, wind, and methane sources.

Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent.13,14

Ocean acidification has increased 26% since the beginning of the industrial era.

Evidence is growing that the comparatively cold zone within the Northern Atlantic could be due to a slowdown of this global ocean water circulation.

Compared to the previous report, the lower bounds for the sensitivity of the climate system to emissions were slightly lowered, though the projections for global mean temperature rise (compared to pre-industrial levels) by 2100 exceeded 1.5 °C in all scenarios.

The amount of summer sea ice in the Arctic has steadily declined over the past few decades because of man-made global warming, according to the National Oceanic and Atmospheric Administration.

Surface temperature increases are greatest in the Arctic, which has contributed to the retreat of glaciers, permafrost, and sea ice.

’Extremely remarkable’ 2017 heads toward record for hottest year without an El Niño episode.

It was the second-coolest year of the 21st century to date, and tied with the second-warmest year of the 20th century.

Reef material is calcium carbonate, which contains 44 per cent carbon dioxide.

A composite record of Arctic ice demonstrates that the floes' retreat began around 1900, experiencing more rapid melting beginning within the past 50 years.

Satellites and on-site measurements are observing that Himalayan glaciers are disappearing at an accelerating rate.

The Environment Agency claimed that the UK may have had the most severe drought in 100 years.

Over 97 percent of the scientific community … believe that humans are contributing to climate change.

Reconstructions have consistently shown that the rise in the instrumental temperature record of the past 150 years is not matched in earlier centuries, and the name "hockey stick graph" was coined for figures showing a long-term decline followed by an abrupt rise in temperatures.

I think about all the 194 countries that signed onto the Paris accord, the U.S. is the one that's leading the world in reducing emissions.

These models predict an upward trend in the global mean surface temperature, with the most rapid increase in temperature being projected for the higher latitudes of the Northern Hemisphere.

The strong El Niño has continued into 2016, raising the possibility that this year will, yet again, set a global temperature record

The period from 1983 to 2012 was likely the warmest 30-year period of the last 1400 years in the Northern Hemisphere, where such assessment is possible (medium confidence).

Last year, though, was a wet one on the Rio Grande, with a strong snowpack in the winter of 2016-17 that allowed the conservancy district to store water in upstream reservoirs.

All datasets generally show an acceleration of mass loss from the Antarctic ice-sheet, but with year-to-year variations.

Methane plays a minor role in global warming but could get much worse if permafrost starts to melt.

This must be the way forward and we should end industrial agriculture in this country as well."

But the heads of small island nations, fearful of rising sea levels, had also asked scientists to examine the effects of 2.7 degrees of warming.

"Today's Energy Jobs Are in Solar, Not Coal".

Thus rather than a "doomsday" cycle of runaway warming, Mother Earth appears surprisingly tolerant of carbon, decreasing atmospheric levels of water vapor -- a more effective greenhouse gas -- to compensate.

Cyanobacteria can encourage the precipitation or accumulation of calcium carbonate to produce distinct sediment bodies in composition that have relief on the seafloor.

Many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric CO2 is due to human fossil fuel burning.

The issues with tree rings had not been hidden, but were extensively discussed in scientific literature and in IPCC reports.

We didn't have global warming during the Industrial Revolution

Climate proxy records show that natural variations offset the early effects of the Industrial Revolution, so there was little net warming between the 18th century and the mid-19th century, when thermometer records began to provide global coverage.

They tell us that we are the primary forces controlling earth temperatures by the burning of fossil fuels and releasing their carbon dioxide.

At present, the primary source of CO 2 emissions is the burning of coal, natural gas, and petroleum for electricity and heat.

There are a myriad of other radiative forcings that affect the planet's energy imbalance.

Changes to Earth's radiative equilibrium, that cause temperatures to rise or fall over decadal periods, are called climate forcings.

When CO2 emissions are compared directly to CO2 levels, there is a strong correlation in the long term trends.

However, the Stern report, like many other reports, notes the past correlation between CO 2 emissions and economic growth and then extrapolates using a "business as usual" scenario to predict GDP growth and hence CO 2 levels, concluding that: Increasing scarcity of fossil fuels alone will not stop emissions growth in time.

It “certainly puts the kibosh on everyone saying that Antarctica’s ice is just going up and up,” Meier said.

The effect can be so pronounced that during extreme events, it is not possible to obtain quality images of the Sun or stars.

The polar bear population has been growing.

On the other hand, annual per capita emissions of the EU-15 and the US are gradually decreasing over time.

The bottom line is there’s no solid connection between climate change and the major indicators of extreme weather

The effects of global warming or climate damage include far-reaching and long-lasting changes to the natural environment, to ecosystems and human societies caused directly or indirectly by human emissions of greenhouse gases.

Renewables can't provide baseload power

This less valuable "spare" electricity comes from uncontrolled wind power and base load power plants such as coal, nuclear and geothermal, which still produce power at night even though demand is very low.

The CO2 amplifies the warming and mixes through the atmosphere, spreading warming throughout the planet.

Decades ago, they correctly predicted how much Earth's temperature would rise due to increasing atmospheric CO2.

Weather Channel Co-Founder John Coleman Calls Global Warming a Hoax

Carbon dioxide is colorless.

There is a link between climate change and the NSW bushfires.

White House explains the link between Climate Change and Wild Fires.

In recent decades this warming has been accompanied by a constant rise in the sea level and, it would appear, by an increase of extreme weather events, even if a scientifically determinable cause cannot be assigned to each particular phenomenon.

In the scientific literature, there is an overwhelming consensus that global surface temperatures have increased in recent decades and that the trend is caused mainly by human-induced emissions of greenhouse gases.

The IPCC statement on Amazon rain forests is correct.

The IPCC has since acknowledged that the date is incorrect, while reaffirming that the conclusion in the final summary was robust.

Whatever is driving increases in winter Arctic temperatures is not heat coming out of the Arctic Ocean, which is covered with insulating ice.'

Sea ice has an important effect on the heat balance of the polar oceans, since it insulates the (relatively) warm ocean from the much colder air above, thus reducing heat loss from the oceans.

Overall Greenland is losing ice mass at an accelerating rate.

"A tipping point in refreezing accelerates mass loss of Greenland's glaciers and ice caps".

the U.S. is shattering high temperature records far more frequently than it is shattering low temperature records.

The impact on the environment, ecosystems, the animal kingdom, society and humanity depends on how much more the Earth warms.

Therefore, CO2 levels could not have forced temperatures to rise.

Not only do increasing carbon dioxide concentrations lead to increases in global surface temperature, but increasing global temperatures also cause increasing concentrations of carbon dioxide.

Sea level rise is now increasing faster than predicted due to unexpectedly rapid ice melting.

He held a professorship with the University of Virginia from 1971 until 1994, and with George Mason University until 2000.

Even if the warming were as big as the IPCC imagines, it would not be as dangerous as Mr. Brown suggests.

Orrell says that the range of future increase in temperature suggested by the IPCC rather represents a social consensus in the climate community, but adds "we are having a dangerous effect on the climate".

However, it is unable to explain the long term warming trend over the past few decades.

Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.

The heatwave we now have in Europe is not something that was expected with just 1C of warming

June 2019 was the hottest month on record worldwide, the effects of this were especially prominent in Europe.

The Independent Climate Change Email Review investigated the CRU scientists' actions relating to peer review.

published on 10 February 2005 used a wavelet transform technique to reconstruct Northern Hemisphere temperatures over the last 2,000 years, combining low-resolution proxy data such as lake and ocean sediments for century-scale or longer changes, with tree ring proxies only used for annual to decadal resolution.

Warming causes more moisture in the air which leads to more extreme precipitation events.

As air gets warmer, it can hold more moisture.

Glaciers are in rapid retreat worldwide, despite 1 error in 1 paragraph in a 3000 page IPCC report.

"Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011".

There is ample evidence that Earth's average temperature has increased in the past 100 years and the decline of mid- and high-latitude glaciers is a major piece of evidence.

The sharp acceleration in CO 2 emissions since 2000 to more than a 3% increase per year (more than 2 ppm per year) from 1.1% per year during the 1990s is attributable to the lapse of formerly declining trends in carbon intensity of both developing and developed nations.

[Jonathan Overpeck:] ‘No doubt about it anymore — humans, mainly by burning fossil fuels, are cooking the planet,’ Overpeck said.

If two air masses, one cold and dense to the North and the other hot and less dense to the South, are separated by a vertical boundary and that boundary should be removed, the difference in densities will result in the cold air mass slipping under the hotter and less dense air mass.

NASA Finds Antarctica is Gaining Ice,

"Study concludes Antarctica is gaining ice, rather than losing it".

describes a world of worsening food shortages and wildfires, and a mass die-off of coral reefs as soon as 2040

A recent paper published by the National Academy of Sciences of the USA warns that: "Synergistic effects of habitat destruction, overfishing, introduced species, warming, acidification, toxins, and massive runoff of nutrients are transforming once complex ecosystems like coral reefs and kelp forests into monotonous level bottoms, transforming clear and productive coastal seas into anoxic dead zones, and transforming complex food webs topped by big animals into simplified, microbially dominated ecosystems with boom and bust cycles of toxic dinoflagellate blooms, jellyfish, and disease".

The most recent ocean measurements show consistent warming.

The IPCC Fourth Assessment Report stated that: Warming of the climate system is unequivocal, as evidenced by increases in global average air and ocean temperatures, the widespread melting of snow and ice, and rising global average sea level.

'Gore claims the snowcap atop Africa's Mt. Kilimanjaro is shrinking and that global warming is to blame.

It would also reduce environmental pollution such as air pollution caused by burning of fossil fuels and improve public health, reduce premature mortalities due to pollution and save associated health costs that amount to several hundred billion dollars annually only in the United States.

“Carbon dioxide hurts nobody’s health.

At this CO 2 concentration, International Space Station crew experienced headaches, lethargy, mental slowness, emotional irritation, and sleep disruption.

However, this is exactly what climate scientists have predicted for California since at least the 1980s: protracted periods of warm, dry conditions punctuated by intense wet spells, with more rain and less snow, causing both drought and floods.

Between 2011 and 2014, California experienced the driest period in its recorded history and more than 100 million trees died in the drought, creating areas of dead, dry wood.

Growers regularly pump CO2 into greenhouses, raising levels to three times that of the natural environment, to produce stronger, greener, healthier plants.”

Global warming is the long-term rise in the average temperature of the Earth's climate system.

I would not agree that carbon dioxide is a primary contributor to the global warming that we see.

2016's record meant that 16 of the 17 warmest years have occurred since 2000, 2017 being the third-hottest year on record meant that 17 of the last 18 warmest years have occurred since 2000.

[CO2] has increased 43 percent above the pre-industrial level so far

Measured atmospheric concentrations of carbon dioxide are currently 100 ppm higher than pre-industrial levels.

Global human emissions are only 3 per cent of total annual emissions.

Warnings about the future of the polar bear are often contrasted with the fact that worldwide population estimates have increased over the past 50 years and are relatively stable today.

Sea level rise of 65 centimeters, or roughly 2 feet would cause significant problems for coastal cities around the world.

For example, in 2007 the Intergovernmental Panel on Climate Change (IPCC) projected a high end estimate of 60 cm (2 ft) through 2099, but their 2014 report raised the high-end estimate to about 90 cm (3 ft).

There is ample evidence that Earth's average temperature has increased in the past 100 years and the decline of mid- and high-latitude glaciers is a major piece of evidence.

The history of the Himalayas broadly fits the long-term decrease in Earth's average temperature since the mid-Eocene, 40 million years ago.

Earth’s mean temperature over the last 2,000 years shows two previous periods when temperatures were warmer than they are now; from 1–200 A.D., an epoch called the Roman Warm Period, and more recently the Medieval Warm Period from 900–1100 A.D.

The Medieval Warm Period (MWP) also known as the Medieval Climate Optimum, or Medieval Climatic Anomaly was a time of warm climate in the North Atlantic region lasting from c. 950 to c. 1250.

The consequences of climate change become increasingly bad after each additional degree of warming, with the consequences of 2°C being quite damaging and the consequences of 4°C being potentially catastrophic.

The TAR estimate for the climate sensitivity is 1.5 to 4.5 °C; and the average surface temperature is projected to increase by 1.4 to 5.8 Celsius degrees over the period 1990 to 2100, and the sea level is projected to rise by 0.1 to 0.9 metres over the same period.

The grasslands, crops, forests and territorial waters of Australia absorb more carbon dioxide than Australia emits.

It decomposes and turns into carbon dioxide (CO2), which is released into the atmosphere.

Urban and rural regions show the same warming trend.

"Impacts [of climate change] will very likely increase due to increased frequencies and intensities of some extreme weather events".

Weather Channel Co-Founder John Coleman Calls Global Warming a Hoax

Climate change has also been called the "greatest scam in history" by John Coleman, who co-founded the Weather Channel.

Melting ice leads to more sunlight being absorbed by water, thus heating the Arctic.

The Arctic gradually loses snow and ice, bare rock and water absorb more and more of the sun's energy, making the Arctic even warmer.

CO2 levels are measured by hundreds of stations across the globe, all reporting the same trend.

Since the last glacial maximum about 20,000 years ago, the sea level has risen by more than 125 metres (410 ft), with rates varying from less than a mm/year to 40+ mm/year, as a result of melting ice sheets over Canada and Eurasia.