No, it isn't- if you will review all the information available, an equal number of scientists & researchers looked at the same data, and reached the opposite conclusion.
Their voices were not given any forum by the press.
There is a still-active volcano in Italy which spews about 4 quadrillion tons of flourine compounds into the atmospere per year- yet we were told the backyard mechanic's cracking of pound cans of Freon were damamging the Earth. It does not add up in either case.
What data are you talking about? And it's not the backyard mechanics that could cause a problem, it's large-scale industrial users. I know that volcanos spew a lot of chemicals into the air, but not all flourine compounds can react with ozone. It takes a specific kind of compound that can initiate this chain reaction in the conditions of the upper atmosphere. I think too that it's important to understand that chemical reactions in the ozone layer are not that well understood, and the banning of CFC's was largely a precautionary measure because the risks from ozone depletion are so severe. If the risks were not so severe, we wouldn't have acted to prevent a potential problem. (It's a lot like Iraq today.)