Hmmmm.. I got to a very interesting part in Billions And Billions By Carl Sagan. He talked about how damaging CFC's are to the OZone. Now Dupont, the original manufatures, have phased out of using this stuff and instead started using HCFC's which is of their creation. now this stuff still is not perfect. It is still damaging to the Ozone layer. But not as damaging. I believe a fund should be made. If I grow up to have the money, ill make it myself. This fund should offer a certain sum of money to whoever can come up with a better substitue for CFC's. What do you think.