I watched Robert Kennedy Jr. on Letterman recently, and I liked what he had to say about why we have to do something about the environment. One of his main points was related to Sweden and their goal to be oil free by 2020. Since starting the program, the Sweden economy has been soaring. Iceland did the same and is reaping rewards. California is our most environmentally aware state and their economy is by far the strongest. Here is the clip from Letterman.