The premise of the case: The sky belongs to everyone, so governments must protect it.
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!
California's neverending drought spares no plant, animal, or holiday tradition. It's latest victim: pumpkins.
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.
Good thing we figured that out before we wiped them out completely.
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.
The Lone Star State is losing open space faster than any other, and that's bad news for the water cycle.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.