U.S. News and World Report: Despite pessimistic signs on Capitol Hill and internationally regarding action by the United States on climate change initiatives, the head of the World Wildlife Fund today predicted that the December climate summit in Copenhagen will draw up a framework for action that will prompt Congress to move on the critical issue. "It’s time for us step up and play a leadership role," says Carter Roberts, CEO of the WWF, one of the first conservation groups in the nation to begin pushing for action to …