Leonardo DiCaprio attacks climate change deniers running for president

Will Donald Trump lash out at Leo next?

9 figures to help you understand the state of renewable energy

A new U.N. report offers insight into countries' differing approaches to the clean energy sector.

What would actually happen if we stopped eating so much meat?

A new study shows just how much CO2 -- and lives -- we'd save if we just cut our meat consumption in half by 2050.

Protestors turn a federal offshore oil auction into a circus

Watch about 150 activists disrupt the auction for offshore drilling leases in the Gulf of Mexico.

Mitch McConnell likes procrastinating so much, he wants the whole country to do it

McConnell is advising states to "wait and see" before complying with the centerpiece of Obama's climate agenda.

How California got way ahead of the rest of the world in fighting climate change

California can claim first place in just about every clean-energy category.

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Apple says you can “feel really good” about buying its products. Don’t believe them.

The tech giant keeps pushing new products we don’t really need.

The scientist who first warned of climate change says it’s much worse than we thought

We read James Hansen’s terrifying new climate study, so you don't have to.

Trump says nuclear weapons are the riskiest kind of climate change

He's "not a big believer" in that more traditional kind of climate change, he tells the Washington Post editorial board.