Clean Technica: Where do you go after you`ve established yourself as one of the kings of late night TV? Perhaps instead of getting more people to laugh, you go on to try to make more people pay attention to one of the most pressing issues of our time, climate change. That`s what David Letterman will be doing, at least part of the time, now that he`s retired from the iconic Late Show.
Letterman has accepted a position as a correspondent on the second season of Years of Living Dangerously, a climate change documentary...