Reuters: U.S. plans to step up the fight against climate change and revive the economy will not mean a slide toward protectionism, Washington’s delegation told United Nations climate talks on Wednesday. Developing nations at the 175-nation U.N. meeting in Bonn say that exports, of everything from Chinese steel to African flowers, would suffer if rich states put up import barriers to penalize their emissions from burning fossil fuels. "We certainly do not see it that way," U.S. deputy …