Reuters: It will be hard work getting rich nations to agree cuts in greenhouse gases that are deep enough to satisfy the demands of developing countries at climate talks, U.N.’s climate chief told Reuters on Monday. Some 175 nations are meeting this week in Bonn in one of a series of U.N.-led meetings meant to forge a deal in Copenhagen in December to replace or extend the Kyoto Protocol. The talks are split on the level of action which industrialized countries take to curb their …