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States renew vows to reduce greenhouse gas emissions
Governments around the world have reaffirmed their plans to cut greenhouse gas emissions in support of last month's Copenhagen climate summit.
Nations signing up to the summit accord were urged to outline pledges by Sunday. States producing at least two-thirds of emissions have done so.
Correspondents say the accord is widely seen as a disappointment.
However, the level of support for it is seen as an indicator of prospects for a legally binding deal later in the year.