World leaders struck a new political accord at the U.N. Climate Change Conference in Copenhagen that provides for explicit emission pledges by all the major economies - including, for the first time, China and other major developing countries. But the deal did not chart a clear path toward a treaty with binding commitments. The basic terms of the Copenhagen Accord were brokered directly by President Obama and a handful of key developing country leaders on the final day of the two-week conference.

Find more about key elements of the Copenhagen Accord and other conference highlights in our summary.

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