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Watch comedian David Mitchell take the piss out of climate deniers

I am obsessed with David Mitchell. (The comedian, not the dishy author, but really both of them.) Okay, mostly I'm obsessed with Robert Webb because he's the cute one who takes his pants off sometimes, but the point is they are both spectacularly funny and I will basically listen to David Mitchell talk about anything. So it's particularly delightful when he's going yard on climate deniers.

Where the buffalo roamed [VIDEO]

Almost halfway through our six-month, food-focused journey across America, we found a place we didn't want to leave.

Al Gore on Colbert, chatting about climate reality and Rick Perry [VIDEO]

On The Colbert Report last night, Al Gore talked about his "24 Hours of Reality" event and came dangerously close to endorsing Rick Perry for president.

Rick Perry stumbles and mumbles as he tries to defend abstinence education [VIDEO]

"Abstinence works." That's Rick Perry's response to a question about why Texas is sticking with abstinence-only education despite its high teen pregnancy rate.

Fat lady sings: Gore gears up for 24 hours of climate reality [VIDEO]

Al Gore is going big in his fight against climate deniers, with "24 Hours of Reality" on Sept. 14. Opera singing may or may not be involved.

Cartoon version of Rick Perry indistinguishable from the real thing

I wish this Taiwanese animated explainer on Rick Perry said more about his laughable positions on climate science, but you gotta love watching a cartoon version of the Republican front-runner pray for rain and get smacked down by God.

Bill McKibben talks to Grist amidst ‘chaotic and beautiful’ Tar Sands Action [VIDEO]

Bill McKibben shares his excitement on the last day of tar-sands-pipeline protests in front of the White House.

Don Cheadle's Captain Planet is not taking any crap from you

Yeah, whatever it is Captain Planet does is cool and all. (What does he do? Recycle really hard?) But certified badass Don Cheadle has a better idea, one that will save the Earth FOREVER. 

Our new favorite city is inside this guy's brain

Okay, so this is more amazing folk art than realistic urban design, but think of it as your Friday 10 minutes of Zen. Jerry Gretzinger has been making and remaking his incredibly detailed maps since 1963, and he's basically generated an entire alternate universe. In this mini-documentary, he details his complicated creative process, which is […]