The ag heavyweights are coming to grips with the reality of global warming. But they're not ready to put their political dollars to work.
A reader wonders which lube he should use in his new car. Umbra has answers in a jiffy.
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.
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.
Some food activists are not happy with the Gates Foundation's programs to help farmers. But why? We boil the issue down in a new video.
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.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.