Scientists from the National Center for Atmospheric Research say melting Greenland ice sheets could raise sea levels more in the northeaster US and Maritime Canada because of a change in ocean currents.

U.S. Congressional leaders visiting China think an understanding between the U.S. and China is key to reaching a climate pact in Copenhagen.

Ecuador is pursuing a plan to sell carbon credits created by leaving some of its oil -- and the carbon dioxide that would result from burning it -- underground.

The World Animal Health Organisation said climate change is increasing disease among farm animals.

UN Secretary-General Ban Ki-moon told a meeting of business leaders in Copenhagen that "climate change is the defining challenge of our time."

House Majority Leader Steny Hoyer (D-MD) said he expected the eight committees with partial jurisdiction over the new House climate bill to act swiftly.

U.N. Secretary-General Ban Ki-moon said the climate bill approved Thursday by the House Energy Committee is 'not enough' to stem warming to the degree hoped for in the next climate treaty.

"OSLO -- A rise in concentrations of a powerful greenhouse gas over the Arctic after a decade of stability is stirring worries about a possible thaw of vast stores trapped in permafrost, experts said."

"The House Energy and Commerce Committee passed the Waxman-Markey climate and energy bill by a vote of 33-25 on Thursday evening. It’s a landmark occasion, the first time a serious climate bill has made it this far in the House."

"U.N. Secretary-General Ban Ki-moon called for a 'green new deal' on climate change on Thursday and urged for a final push in negotiations ahead of a key summit to be held in Copenhagen in December."

"Gov. Chris Gregoire on Thursday ordered [Washington] state to reach agreement with its single largest polluter to cut greenhouse-gas emissions by half over the next 15 years."

An MIT study published in a major science journal predicts that global warming will be twice as severe as previous estimates.

In the House climate bill, "consumers would receive around $750 billion in direct and indirect handouts and subsidies through 2030 to offset the higher energy costs."

"A climate change bill working its way through Congress this week has been packed with amendments aimed at giving the coal industry a chance to survive if technology to capture carbon dioxide emissions is eventually perfected and deployed."

Two days of secret meetings in China during July 2008 may have laid the foundation for a new cooperation between the U.S. and China on climate change.