The Copenhagen summit
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UN's Ban defends climate summit as 'step forward'
United Nations Secretary-General Ban Ki-moon has defended the results of the Copenhagen climate change talks as a significant step toward a binding agreement, despite criticism from world leaders that the process was flawed. > More
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What is the summit?
Environment ministers and officials from 192 countriesmet inCopenhagen for a United Nations conference on climate change between Dec. 7 and 18.
Virtually all ofthe world's leaders including Prime Minister Stephen Harper, Chinese Premier Wen Jiabao and U.S. President Barack Obama participated in person.