Check out this great Business Week  piece on what some heads up companies are doing about climate change. The best quote came from Cinergy Corp. (CIN  ) CEO James E. Rogers, who said, "Forget the science debate. The regulations will change someday. And if we're not ready, we're in trouble."
Gotta love a pragmatist -- and any business type who understands that there's money to be made in every new endeavour, and the most money goes to the people on the leading edge.