Some celebrities make a big fuss about going green and driving Priuses to save the world. So it's a good thing that there are celebs actually putting some real effort to changing things for the better. Here's Sean Penn, Ben Stiller, Kristen Wiig, Matt Damon, Ted Danson, and co. brainstorming the sort of big, world-changing ideas that will rescue humanity:
Hey, Clinton's comedic timing's not half bad. And there's a nice little dig in there from Kristen Wiig at the famous climate change deniers' talking point about how breathing emits CO2, to boot.
Nice to see this goofy, winking shout-out for the Clinton Global Initiative, the annual conference that actually does put some pretty big ideas into action.