Leonardo DiCaprio Uses Social Networking to Lobby for the Environment

By Suzanne Zuckerman

Thursday January 28, 2010 06:30 PM EST

Leonardo DiCaprio

Tony Barson/WireImage

Leonardo DiCaprio, Chace Crawford and Justin Long are among the stars behind a new campaign driven by viral videos and social networking to lobby for an environmental bill in Washington.

The Natural Resource Defense Council Action Fund, of which DiCaprio is a trustee, has launched the This Is Our Moment effort urging Congress to pass the Clean Energy, Jobs and American Power Act.

"We're going to be watching all you senators, very closely," DiCaprio says, explaining how to flood their email in-boxes via a link on the campaign's Web site, which also features an all-star PSA.