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The mayor of 43 countries pledged to cut greenhouse gas emissions
On November 21, about 140 mayors from 43 countries and territories signed a commitment to cut greenhouse gas emissions, ...
The temperature is still rising despite the Copenhagen conference being successful
Scientists warn global warming may continue even if the climate summit in Denmark is successful.
Challenges before the climate conference
The UN climate change summit opening today may lead to a global agreement to cut greenhouse gas emissions.