Cancun climate change summit seeks new emissions deal


Delegates from nearly two hundred countries are gathering in Cancun in Mexico this weekend for UN talks on climate change.

The conference is the latest in a series aimed at producing a legally binding treaty on global warming. But with the US and China reluctant to reduce carbon emissions, a new deal looks unlikely.

The Cancun meeting follows last year's Copenhagen summit, where world leaders again failed to agree a new treaty despite high hopes of an agreement.

David Shukman reports.

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