U.S. News and World Report: When President Obama took office last year, two of his top priorities were stronger action to stem global warming and a more collaborative, cooperative approach to solving international problems. By making climate change a primary focus in America’s relationship with China–the two countries are the world’s top two polluters–the president sought to accomplish two goals in a single stroke. “The Obama administration is the first U.S. administration to make climate change a ‘top three’ issue …