I came across it quite a while back, and was reminded of it while watching End of Suberbia this evening. It is one of my very favorite quotes of all time, it comes from the MinusCar Project blog (link in the sidebar)
"I believe people that think that the globe is warming because of human activity, specifically carbon emitting human activity, might be right. Because I think they might be right, I think humans need to change. And because I think humans need to change, I think I need to change."
hopefully, he and I are not the only ones who feel this way