A leaked questionnaire left Department of Energy staff feeling "unsettled."
The world's biggest emitter is on track to meet its Paris pledge early.
With deeper cuts to follow.
China just scored another remarkable clean power win.
It was the second-hottest year ever in the U.S., and it was awfully wet too.
Prepare yourselves for snowballs, witch hunts, and a big measles outbreak.
The deal is far from an ultimate solution to climate change, but it represents unprecedented progress.
Watch a time-lapse video to see how much methane these gassy beasts emit.
With new leadership, Discovery is planning to air programming that's scientifically credible.