National (U.S.)

"A possible amendment from Sen. Lisa Murkowski (R-Alaska) has the potential to handcuff U.S. EPA from exercising its full regulatory power [over greenhouse gases], a scenario that has sent shockwaves through the environmental community."

"Pacific Gas & Electric, the big California utility, has pulled out of the United States Chamber of Commerce over what its chairman, Peter Darbee, termed 'fundamental differences' over the climate change issue."

"The Environmental Protection Agency said on Tuesday that it would require the nation’s biggest emitters of greenhouse gases to start tracking their emission levels on Jan. 1 and report them to the government."

"NEW HAVEN, W.Va. -- Poking out of the ground near the smokestacks of the Mountaineer power plant here are two wells that look much like those that draw natural gas to the surface. But these are about to do something new: inject a power plant's carbon dioxide into the earth."

New drilling techniques have brought online U.S. natural gas reserves previously considered unreachable.

"Opponents of offshore oil drilling in the Arctic are making a last-ditch effort to convince the Obama administration to impose the same kind of moratorium on oil and gas development that it did on major commercial fishing in the Far North."

"A two-judge panel of a federal appeals court has ruled that big power companies can be sued by states and land trusts for emitting carbon dioxide. The decision, issued Monday, overturns a 2005 District Court decision that the question was political, not judicial."

"U.S. EPA's Office of Civil Rights has shown a systemic refusal to address allegations of discrimination in the use of agency funds, according to a unanimous three-judge panel on the 9th U.S. Circuit Court of Appeals."

"Companies are beginning to show increased willingness to disclose the extent to which they're contributing to global warming and what they're doing to keep it from harming their business."