Because the amount of atmospheric carbon is well known and conservation of matter requires a balanced global carbon budget, this previously unaccounted for source of carbon to the atmosphere implies the existence of an additional continental carbon sink such as higher rates of biomass accrual in forests.
(World Cancer Research Fund/American Institute for Cancer Research (2007) Food, Nutrition, Physical Activity and the Prevention of Cancer: a Global Perspective. AICR: Washington, DC). AICR/WCRF was the first organization to note that, after smoking, obesity is the most important preventable cause of cancer. While obesity is clearly linked to risk for developing many forms of cancer, the deleterious impact of obesity on prognosis has proven even more compelling in several studies.
Two large studies funded by Cancer Research UK-the EPIC study and the Million Women Study-have found that obese women have a 30% higher risk of postmenopausal breast cancer than women with a healthy weight [8, 20]. Obesity does not increase the risk of breast cancer in women before their menopause [7, 8, 20]. Putting on weight over time can also increase the risk of breast cancer. Studies have found that: â¢ Putting on 2-10 kg (4.4-22 lb) after the age of 50 increases the risk of breast cancer by 30% [21].