The EPA has proposed new rules to cut use of HFCs, refrigerants that also happen to be potent greenhouse gases.
An art project serves up gourmet meals, made from produce that would otherwise go to waste, in a setting that can only be called trashy.
Ride along with Uber’s twists and turns in this interactive infographic.
A new tool lets you see how hot it's going to get in your neck of the woods if we don't do anything about climate change.
In Texas, some small-town sleuths on the illegally ditched-sofa beat are stumbling on big-time dumping of toxic fracking waste.
Once upon a time, this super-plant may have geoengineered the planet. Now scientists want to sequence its genome to learn its secret.
Wait – shh – did you hear that? It’s the sound of biking women around the world saying, “Enough of this BS.”
Behold the next coming of Van Jones -- or rather “Vans” Jones: Lil B the Based God.
A reader wonders whether she can ditch her car. Umbra offers some wheely good advice.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.