"Germany's top climate researcher says he hopes he and his fellow scientists around the world have got it all wrong about global warming. Hans Joachim Schellnhuber, head of the Potsdam Institute for Climate Impact Research, told Reuters he gets no pleasure at all in being a prophet of doom and hopes he and his colleagues have overlooked effects that could still arrest climate change."

"The release of toxics once bound within glaciers may be a little-anticipated consequence of climate change. Adverse effects are likely occurring, or could occur, on almost every continent."

Sandstorms reminiscent of the 1930s dustbowl are becoming more common in Navajo country -- and climate change seems to be a culprit.

"Two environmental groups petitioned U.S. EPA today to set national limits for greenhouse gases using the Clean Air Act."

"The heads of the world's largest international financial institutions today called for a comprehensive agreement to combat climate change at this month's United Nations conference in Copenhagen and agreed to further coordinate their own efforts to help achieve the meeting's ambitious goals."

"If the evidence is overwhelming that man-made climate change is already upon us and set to wreak planetary havoc, why do so many people refuse to believe it?" Psychologists say denial of reality is a common human reaction to unpleasant truth.

"Most world leaders plan to attend a climate summit in Copenhagen this month, boosting chances that a new U.N. deal to fight climate change will be reached, host Denmark said on Tuesday."

"Climate change dominated the meeting of Commonwealth heads of government that concluded Sunday in Port of Spain with a statement of support for an international legally binding agreement in Copenhagen next month."

"A group of U.S. senators who could determine the fate of a climate bill received more than $20 million in campaign contributions over the past two decades from energy interests with a direct stake in pending legislation."