This Bulb

Just a single naked light bulb can get some sexy actresses to make a little video about saving the planet. Natalie Portman, Kyra Sedgwick and Chloe Sevigny explain how an action as simple as changing a light bulb can help reverse the effects of greenhouse gases. Featuring the music of Aimee Mann and remarkable footage from the National Geographic library.

For more information visit:
http://www.green.nationalgeographic.com