copenhagen

The U.N.'s climate summit is kicking off in CancÚn, Mexico, and there's plenty of unfinished business from Copenhagen.

See what's at stake at this year's summit

That the negotiations were excruciatingly difficult is a sign of progress: At stake were policies with real consequences

The U.S., India, China, Brazial and South Africa hammer out an agreement tokeep the summit from collapse.

But other countries are not happy about beingleft out of the negotiations -- and could vote it down

Negotiators in Copenhagen are holding out hope that newly arriving world leaders will bridge the gap between rich and poor nations, and seal a climate deal -- or something close to one

(European Space Agency) Over 30,000 people from 190 nations are gathered at the two-week UN Climate Change Conference in Copenhagen.

On Thursday about 150 distinguished guests attended an ESA-hosted side event entitled "Global Monitoring of our Climate: the Essential Climate Variables."

Beijing's decision to bring targets on carbon emissions reductions to Copenhagen is hopeful, but it is important to understand what exactly Beijing is promising -- and what it's not

Climate negotiators have real hope that a proposed agreement to reduce deforestation could prove to be a bright spot in a meeting that might otherwise be considered a failure.

If the failed climate talks this week in Barcelona are any indication, the odds of a global agreement on climate change at Copenhagen next month are vanishingly low

India staunchly refuses to take action on lowering carbon emissions, saying the West must concede first. Can agreements be made at next month's Copenhagen talks?

Moscow's support is key to passing a meaningful treaty at December's climatesummit in Copenhagen. But Russia -- one of the world's largest polluters-- is sounding more skeptical about global warming than ever