The company knew about a corroding pipe at its refinery in the San Francisco Bay area, but didn't fix it -- and that's why the refinery exploded last August.
During a windy hour this month, wind provided 17.5 percent of California's electricity supply. That followed a surge in wind power installations last year.
A new report warns that a nuclear accident could prompt people to get in their cars and try to escape even if they're outside the official evacuation zone, causing mega traffic jams.
A report from NOAA finds that last year's drought in the central U.S. was just a freak weather event, but at least one respected climate scientist disagrees.
The nonprofit news site is being honored for its coverage of a spill into the Kalamazoo River and the broader dangers posed by tar-sands pipelines.
Fracking can release uranium from shale. Pennsylvania is poised to study the issue, and the uranium industry is poised to exploit it.
Climate change is disproportionately warming the oceans, but scientists warn that this trend won't keep landlubbers cool forever.
Daniel McGowan was first imprisoned for allegedly participating in an Earth Liberation Front arson, then he was thrown in jail again for exercising his free speech.
A bill in the state House would outlaw use of state funds to promote or practice sustainable development. Tough luck, future generations.