Watch some of the ads that hit Republican candidates for being beholden to wealthy polluters.
The mayor of South Miami is fed up with Florida's refusal to address sea-level rise, which threatens to wipe out the southern end of the state.
It's a spot of good news in an otherwise gloomy news-scape.
Look who's calling attention to ocean plastics now -- the Divine Miss M herself!
The premise of the case: The sky belongs to everyone, so governments must protect it.
At the base of the Blue Ridge, a battle is brewing over a massive pipeline designed to pull shale gas to the Atlantic Coast.
The U.S. oil-and-gas boom is dumping oodles of methane into the atmosphere, and so far, the feds haven't gotten meaningful regulations together.
The first nine months of 2014 broke the heat record, and now we're on track for this whole year to be the warmest ever.
Fights over rooftop solar generally focus on "net metering," but the challenge to utilities is far greater than that, and if they hope to survive, their response must be more ambitious.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.