Reuters: U.S. President Barack Obama is unlikely to sign climate legislation ahead of a U.N. global warming meeting in Copenhagen that starts in early December, the White House’s top climate and energy coordinator said on Friday. “We’d like to be (finished with) the process. That’s not going to happen,” Carol Browner said at a conference called the First Draft of History. She said the administration is committed to passing comprehensive energy and climate legislation “on the most aggressive …