If you're a long-time CasaSugar reader, you already know that Adrian Grenier used green insulation when he renovated his Brooklyn brownstone. But did you know the eco-minded actor has his own green television series? Grenier's new show, Alter Eco, premiers tonight at 9 on Planet Green. The 13-part series will follow Grenier and his team as they green building projects all over Los Angeles, including overhauling a club using salvaged materials. I love Grenier's down-to-earth attitude about greening one's lifestyle. In an interview with Ecorazzi, he said, "If everyone just became a little more aware of his or her own personal impact on the earth, real change would ultimately result." Find out more about Planet Green here.