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Despite 20 years of effort, greenhouse gas emissions are going up instead of down, hitting record highs as climate negotiators gather to debate a new global warming accord.

With narrowing differences over a key issue, verification, there is growing hope of modest success at the U.N. conference.

The world's top greenhouse polluter hosts week-long U.N. climate talks from Monday aimed at sealing a broader pact to fight global warming and helping poorer nations with money and clean-energy technology.

Long-awaited climate change legislation was put on hold by its authors Saturday when a dispute over immigration politics and Senate priorities threatened to unravel a bipartisan effort that took months of work.

EU leaders agreed Friday to commit euro2.4 billion ($3.6 billion) a year until 2012 to help poorer countries combat global warming, as they sought to rescue their image as climate change innovators and bolster the talks in Copenhagen....

The leading sponsor of a U.S. Senate climate bill says action to combat global warming will raise energy prices, but also create ...

The world can still agree a deal in December to curb greenhouse gas emissions and prepare for a warmer world, co-chairs of a meeting of major polluters in London -- Britain and the United States -- said on Sunday.

Efforts to convince rich nations to toughen emissions cuts have failed to make much headway at climate talks in the Thai capital, the U.N. said on Friday.

At the U.N.'s highest-level conference yet on climate change, China on Tuesday pledged ambitious plans to plant enough forest to cover an area the size of Norway and use 15 percent of its energy from renewable sources within a decade.

The global aviation industry has agreed to cut its net carbon emissions to half 2005 levels by 2050 under a plan to be set out on Tuesday by British Airways chief, Willie Walsh.