A key global treaty to stop global warming almost collapsed last week after poorer nations threatened to walk out unless rich countries like America agree to cut their emissions.

However President Obama said he thinks a deal can still be done and he will go to Denmark in mid-December to make sure it happens.

"If I am confident that all of the countries involved are bargaining in good faith and we are on the brink of a meaningful agreement and my presence in Copenhagen will make a difference in tipping us over edge then certainly that's something that I will do" he told Reuters

Source: The Telegraph

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