EPA clears way for regulation of greenhouse gasses:
http://www.nytimes.com/2009/04/18/science/earth/18endanger.html?hpThe Cliff Notes version:
"Their studies showed that concentrations of these gases are at unprecedented levels as a result of human activity, the agency said, and these high levels are very likely responsible for the increase in average temperatures and other changes in the earth’s climate."
"Among the ill effects of rising atmospheric concentrations of carbon dioxide and the other gases, the agency found, were increased drought, more heavy downpours and flooding, more frequent and intense heat waves and wildfires, a steeper rise in sea levels, more intense storms and harm to water resources, agriculture, wildlife and ecosystems."
"The era of defying science and the Supreme Court has ended.”