Top 10 greenest celebs

6. Adrian Grenier

This eco-bot has been doing rounds in the green circuit with some big impact. Grenier lives in a brownstone in Brooklyn with solar panels and other fun sustainable elements like recycled denim insulation (way to walk the walk, A.G.!). He also picked up a new green-entourage for his show on Green Planet called "Alter Eco" where he shows all of us couch potato “environmentalists” what we can do to make our homes more eco-friendly. Plus, his last name sounds like a super sexy version of “green” with a thick French accent—très hot.