[vodpod id=Video.16293525&w=425&h=350&fv=autoPlay%3Dfalse]

Mark Ruffalo went on The Colbert Report to talk about fracking, and Stephen yelled at him — even though he acknowledged later that it’s probably a bad idea to yell at the Hulk.

Reader support helps sustain our work. Donate today to keep our climate news free.

Favorite part: the extended attempts to interrupt each other, followed by the extended attempts to defer to each other, followed by Colbert’s irrefutable assertion that “you can’t run your car on the sun, it is huge and super-hot.”

Grist thanks its sponsors. Become one.