Presidents, diplomats, scientists, and activists are all descending on the French capital. They'll try to save the world.
We’re now out of time: This next round of U.N. climate negotiations has to result in real progress. At least Obama seems to know that.
Climate action by cities is important, but it's crucial that we avoid double counting municipal achievements.
Scientists graded presidential candidates on their public statements on climate science. Here's how they fared.
New polling and market research suggest the phrases you should use and the phrases you should avoid.
The province of Alberta, aka the Texas of Canada, will impose a carbon tax, phase out coal power, and curb emissions from tar-sands operations.
Protests are still happening in cities around the world. Join them!
Just in time for the Paris climate talks, this new blueprint shows how the U.S. can shift to clean energy while adding half a million jobs.
Too bad for them they're poised to fail.