JOHANNESBURG (Reuters) - Major greenhouse gas emitters should set voluntary curbs on emissions for the time being since a U.N. climate treaty looks out of reach in 2011, the U.S. climate envoy said on Monday.
Todd Stern said Washington did not expect a legally binding deal at U.N. climate talks in South Africa late this year. Many countries have lowered ambitions after a summit of world leaders failed to agree a treaty at a 2009 summit in Copenhagen.