This interactive map lays it all out.

The battle is far from over — and has already transformed the way environmental campaigns are waged.

Scott Pruitt's EPA walks back rule on pollutants from drilling operations.

The corrupt US political system and "alternative facts" are endangering the planet; at minimum, America should be doing its part.

But quite a bit of damage has already been done.

Trump's fondness for an America that resembles the one he grew up in — replete with smokestacks and smog — will send the world over the climate cliff.

Unless we stop developing new fossil-fuel reserves, the Paris agreement is a joke.

Fact-checking a discussion of an actual issue at Sunday's debate.

There was a time, just a few years ago, that most news reports deemed a shale oil boom inevitable in the Golden State. But now, it’s not looking like such a sure thing after all.

Five bedrock assumptions that are warping American policy in the Middle East.