Hollywood heartthrob Adrian Grenier takes on the world while hosting and co-producing ‘Alter Eco,’ a 13-part upbeat eco-fun miniseries on the LifeStyle Channel. The documentary is about being creative about life in relation to the environment and is a refreshing twist on recent darker environmental documentaries like Al Gore’s ‘An Inconvenient Truth.’

Adrian Grenier is known for his 2002 Documentary ‘Shot in the Dark,’ a controversial film about his hunt for his biological father.

This eco-passionate Hollywood A-lister has no challenges with celebrity, as he has been spotted mingling with Paris Hilton, Lindsay Lohan and Kirsten Dunst.