FILE- Smoke billows from a chimney of a heating plant as the sun sets in Beijing in this file photo dated Monday, Feb. 13, 2012. U.N. climate talks being held in Bonn, Germany, are in gridlock ... more 
FILE- Smoke billows from a chimney of a heating plant as the sun sets in Beijing in this file photo dated Monday, Feb. 13, 2012. U.N. climate talks being held in Bonn, Germany, are in gridlock Thursday May 24, 2012, as a rift between rich and poor countries risked undoing some of the advances made last year in the two-decade-long effort to control carbon emissions from fast-growing economies like China and India as well as developed industrialized nations that scientists say are overheating the planet.(AP Photo/Alexander F. Yuan, File) less 
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Associated Press | Photo By Alexander F. Yuan, File
Thu, May 24, 2012 11:51 AM EDT