"Senate Environment and Public Works Committee Democrats quashed a three-day-long Republican boycott and passed global warming legislation today using a procedural move that could undermine support from moderate senators if the bill reaches the floor."

"The US has given up hope of reaching a global climate change treaty at Copenhagen and is working towards a deal late next year, the Obama administration said today. The decision ends hopes of a legally binding deal being sealed next month."

"Draining and burning of the world's peat bogs accounts for about 5.5 percent of global carbon emissions but are currently excluded from governments' climate targets and U.N. talks, a study found on Wednesday."

"It's official: climate legislation has zero chance of passing before the big summit in Copenhagen this December." That seems to be the inevitable consequence of an announcement by Senate Majority Leader Harry Reid.

"Researchers cannot agree whether the melting is attributable mainly to humanity’s role in global warming."

"A partisan standoff over Senate global warming legislation clouded the start of the Environment and Public Works Committee's markup of the sweeping proposal today with just one Republican in attendance."

"German Chancellor Angela Merkel urged the United States Tuesday to agree to binding climate goals, telling U.S. lawmakers in a speech to Congress there was 'no time to lose' in the fight against global warming."

"Senate Environment and Public Works Committee Chairman Barbara Boxer (D-Calif.) will go ahead and mark up climate legislation in her committee Tuesday, she announced Monday morning, even if the Republicans try to block her."

"Senate Democrats are still aiming for a committee markup on global warming legislation next week despite Republican calls for a slower pace on the sweeping measure."

"The multiyear ice covering the Arctic Ocean has effectively vanished, a startling development that will make it easier to open up polar shipping routes, an Arctic expert said on Thursday."