In the lab, we studied what type of energy what type of light destroys the molecules. We found that it's not a light that you can see. It's ultraviolet rays, a type of light that normally doesn't get to the earth's surface. The ultraviolet light doesn't reach us because of the ozone layer's protection. The CFCs travel all the way up to the stratosphere, to that type of light.
Some chemical compounds are very strong.
They are not broken down and destroyed, for example, by rain. So they stay intact until something happens to them. That explains why they are destroyed very slowly. Yes, most scientists agree, almost all. Practically all of the scientists who study the atmosphere agree.