"Basalt formations off the East Coast of the U.S. could suck up a billion tons of carbon dioxide, according to a new study. Paleontologist Paul Olsen, of Columbia University's Lamont-Doherty Earth Observatory, explains how to get the CO2 into the rocks, and why scientists believe it won't leak out."

Scientists seeing signs of global warming-related stress in western Hudson Bay polar bears ask whether the hungry bears are turning to cannibalism.

"Senate climate legislation advocates are bracing for a floor battle this month over a Republican campaign that they fear could drag down efforts to pass a major global warming bill before the real legislative debate can start."

"Nearly half of global money managers are making investment decisions without factoring in risks or opportunities associated with climate change, according to a survey released on Wednesday by a coalition of environmentalists and investors."

"Scientists have uncovered what appears to be a further dramatic increase in the leakage of methane gas that is seeping from the Arctic seabed."

"An environmental group today announced plans to flood Senate offices with calls urging action on climate legislation."

"When presidents and prime ministers departed the U.N. climate conference in Copenhagen last month, they left behind a vast legal tangle that experts have barely begun to unravel."

"The Obama administration may issue an order that would expand the National Environmental Policy Act's scope to prevent global warming. The move could open up new avenues to challenge projects."

Despite a 60-vote Democrat majority, climate change legislation faces an uphill fight in the Senate. Are more offshore drilling and subsidies for nuclear plants the key?