Activists dressed as polar bears stage a protest at the U.N. Climate Summit in Copenhagen on Monday, Dec. 14, 2009, on behalf of humans who are being hit hard by climate change. (AP Photo/Heribert Proepper)

Photo by: Heribert Proepper

Activists dressed as polar bears stage a protest at the U.N. Climate Summit in Copenhagen on Monday, Dec. 14, 2009, on behalf of humans who are being hit hard by climate change. (AP Photo/Heribert Proepper)