Associated Press: The U.N. climate chief has a message for naysayers about the Copenhagen climate conference next month: It will succeed. Yvo De Boer, the U.N. official who is shepherding the talks, sought to assure reporters Thursday that the long-anticipated United Nations-led meeting Dec. 7-19 isn’t a failure even before it’s started. In large part, he said he was responding to news coverage that increasingly emphasized the long-shot odds for a deal, particularly given the lack of U.S. commitment to …