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.
Obesity leads to the reduction of SHBG (sex hormone binding globulin) a protein that binds estrogen levels and keeps them out of circulation. When these levels go down, estrogen levels go up, become active, and thus stimulate the growth of breast cancer cells. Over one hundred studies have investigated the links between obesity and breast cancer.