Agence France-Presse: A key US senator said Friday that action on legislation to fight climate change was “impossible” for now because of fierce new opposition to offshore drilling after the Gulf of Mexico oil spill. “I believe it would be wise to pause the process and reassess where we stand,” Republican Senator Lindsey Graham said, pouring cold water on predictions that he would eventually support the bill. Graham withdrew two weeks ago from discussions with Democratic Senator John Kerry and …