"China laid out a plan to curb carbon emissions by 2020 and U.S. President Barack Obama called on all nations to act now to tackle global warming, as world leaders tried to inject momentum into climate change talks."

"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."

"Developers of a controversial coal-fired power plant in Sevier County [Utah] now intend to transport and dispose of the proposed facility's fly ash in Carbon County and Tooele County landfills rather than close to home."

"An incinerator that burns hazardous material from Utah and around the West is facing more than $500,000 in penalties for environmental violations."

"Solar energy developer BrightSource Energy, Inc. has withdrawn plans for a 5,000 acre solar thermal facility to be located in the Broadwell Valley in California's Mojave Desert."

"As a species, the endangered Florida panther needs about 4,860 square miles in southern Florida to be protected as critical habitat to save the animal from extinction and recover the species, according to a new scientific petition submitted to the U.S. Fish and Wildlife Service by three nonprofit organizations."

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."

"BILLINGS, Mont. -- Facing the combined pressures of climate change, hunters and lax protections, 600 grizzly bears in and around Yellowstone National Park are going back on the threatened species list under a federal court order issued Monday."

"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."