
Pledges made at the Copenhagen summit are very unlikely to keep global warming below 2C, researchers find.
The chances of forging a binding agreement on climate change are small, says the UN climate chief at a meeting in Copenhagen.
The first round of UN climate talks since the bitter Copenhagen summit face divisions and mistrust on key issues.
Last major emerging economies endorse compromise plan to curb greenhouse gas emissions by 2020
Two months after disappointing Copenhagen summit, Yvo de Boer announces he will leave post in July
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