Adrian Grenier via people.com

We've already told you about Tommy Lee and Ludacris' green competition, but now it's time to talk about the big picture. They join tons of other celebs, like SuChin Pak and Emeril, who have shows on the new network Planet Green, which launches tonight and is part of the Discovery Channel Networks.

Adrian Grenier teams up with actress Angela Lindvall for the show "Alter Eco", where they will demonstrate an awesome green lifestyle for celebs and regular joes alike.

Other shows include "Greenovate", which shows homeowners how to decrease housing costs by going green while increasing their homes' values at the same time, and "Hollywood Green", where Maria Menounos will talk about all the ways celebs are going green. Bill Nye the Science Guy also makes a return on "Stuff Happens", where he explains the science behind going green.

Maria Menounos via yahoo.com

And of course, who could forget "Battleground Earth," where Ludacris and Tommy Lee have to live as greenly as possible while on the road. What's more green? Ludacris' hot tub full of women or Tommy Lee's week without showering? You be the judge.