Gov. Jerry Brown wants to take $250 million raised by the state's carbon-trading program and put it toward a fast train between L.A. and San Francisco.
The fast-food giant will start buying some in 2016, and then gradually work toward its "aspirational goal" of buying 100 percent verified sustainable beef.
The U.S. Coast Guard is on its way to rescue a ship that got stuck in ice while trying to rescue another ship that got stuck in ice. Why so much ice? A rescued scientist explains.
A U.S. Navy ship that delivered aid to Japan after the big tsunami in 2011 sailed right into a plume of radioactive pollution. Now sick sailors are suing the nuclear plant owner.
The snowpack in the Sierra Nevada mountains is way low, suggesting that Californians can look forward to a year of drought and water shortages.
New research finds that infants born near fracking wells in Pennsylvania had lower birth weights and more health concerns than other newborns.
California and Quebec are now the most expensive places in the world in which to pump carbon dioxide into the air.
As if the oil-sands operations in Alberta weren't bad enough, here's another way they're polluting the environment.
A trio of fiery train crashes prompted the federal government to warn that oil fracked from the Bakken shale formation is especially dangerous.