Todd Stern, U.S. special envoy for climate change, gestures during a press briefing at the U.N. Climate summit in Copenhagen, Denmark, Friday, Dec. 11, 2009. China's Vice Foreign Minister He Yafei on Friday said the chief U.S. climate negotiator either lacks common sense or is 'extremely irresponsible' for saying that no U.S. climate financing should be going to China.
(AP Photo/Anja Niedringhaus)