This is a great talk on the importance of transitioning to clean energies. Share on FacebookTweet Widgetncsierraclub's blog Comments Excellent...excellent...excellent Hopefully we'll see Gates continue his effort in this regard. Sure, there's bucks to be made here and sure, it is a double-edged sword (which is what you will hear from "the other side"). He's dead on...he's a visionary. Good post...good video. Thanks.