I watched Al Gore's documentary film, "An Inconvenient Truth" yesterday.
It was a very good movie. I was motivated to do something to contribute to solve this problem.
At one point in the movie, Al Gore talked about the balance between environment and economy. In addition to what he said, I think that it's important to point out that if you can purchase the same product with less money, you don't have to earn more money by destroying the environment. So we can make the way we produce the goods/services more efficient, demending less natural resources and using renewable energy source. That makes the relative living standard go up with the same income we earn. Then we don't necessarily need a better economy in order to survive.