Associated Presss: Virgin CEO Richard Branson offered Monday to set up an "environmental war room" to lead the world’s efforts to find a fix for global warming. The British billionaire, speaking at the start of a U.N. debate on climate change, said it would be run by a world figure in global warming and could serve as "a tool for the U.N." to ferret out good ideas and calculate each nation’s costs. "The ‘war room’ will be independent of politics," Branson said. …