"The United States and China have agreed to cooperate on developing an inventory of China's greenhouse gas emissions, the Environmental Protection Agency announced Wednesday, an initiative that appears be a response to criticism of Beijing's data collection."

"The Earth’s oceans, which have absorbed carbon dioxide from fuel emissions since the dawn of the industrial era, have recently grown less efficient at sopping it up, new research suggests."

The peatlands of Indonesia, formed over thousands of years, used to be a vast reservoir of carbon. But now deforestation has dried them out, and they are burning, releasing back into the atmosphere as much carbon dioxide as all the cars and trucks in the U.S. The question is how economic incentives to save the peatlands can outweigh the incentives for destroying them.

"Appearing with President Hu Jintao, President Obama on Tuesday told reporters that the United States was determined to work with China and other countries to help produce a substantive agreement in Copenhagen climate talks next month."

"COPENHAGEN -- Environment ministers made progress on Tuesday toward a scaled-down climate deal in Copenhagen next month, with Washington facing pressure to promise deep cuts by 2020 in greenhouse gas emissions."

"The US Senate will act in early 2010 on legislation to battle climate change, Democratic Senate Majority Leader Harry Reid said Tuesday, ending hopes of a breakthrough by next month's global talks."

"President Barack Obama says the United States and China are looking for a comprehensive deal during next month's climate change summit that will 'rally the world.'"

"President Obama and other world leaders have decided to put off the difficult task of reaching a climate change agreement at a global climate conference scheduled for next month, agreeing instead to make it the mission of the Copenhagen conference to reach a less specific 'politically binding' agreement that would punt the most difficult issues into the future."

"At little noticed talks last week in Port Ghalib, Egypt, climate advocates were hoping to seal a global agreement for the phase down of super greenhouse gases and give next month's Copenhagen climate talks a can-do running start. But the annual meeting of the 198 nations of the Montreal Protocol began on a note of contention that five days of discussions could not overcome."

"Scientists sifting for trends in record high and low temperatures across the United States have found  more evidence of long-term warming of the climate, with the biggest shift coming through a reduction in record low nighttime temperatures."

"A coalition of conservation groups are calling on international climate negotiators in Copenhagen next month to develop land-use policy incentives intended to encourage governments to protect natural carbon storehouses -- especially those in northern boreal forests and peatlands found in Canada, Scandinavia and Russia."

"In the new economy created by global warming, forests are turning into a valuable commodity. Promising not to cut them down is one of the most popular ways companies would like to offset their emissions. Correspondent Mark Schapiro follows the trail of one of those offset projects deep into Brazil's Atlantic forest."

"Less than a month before negotiators will meet in Copenhagen with the lofty goal of crafting a deal to curb global greenhouse gas emissions, the Obama administration is considering endorsing a limited short-term climate pact and deferring more ambitious action until next year."

"CHARLESTON, S.C. -- Republicans in Charleston County censured their own U.S. Sen. Lindsey Graham, saying he puts bipartisanship before the party on issues like climate change."

"The Army Corps of Engineers must consider the effects of climate change as it draws up plans for flood control, navigation and other water projects under a new agency policy."