Let's distill this to a few simple facts.

-Stratospheric chlorine destroys ozone in a catalytic reaction that leaves the same damn atom that broke this ozone molecule, free to do the same to another.

-CFC's are relatively stable molecules till they drift into the upper stratosphere and are broken down by the increased UV flux. Once broken, they form chlorine, and other stuff...

BTW, it's not about a 7% change. It's about the negative change in concentration. It's the fact that industrial bad habits can be amended without civilization comming to a crashing thud and that it makes a difference.

The big lie is that it's all SOOO complex that it's just not comprehendable and so what's the use in doing anything with the rapture right around the corner there, somewhere...

I'm sorry, I just realised that you didn't even have a point, other than to say "Look, two scientists are disagreeing about something!" How rude of me. This is just a warmup for more of your denialist BS on AGW. Getting fired up for a post about Al Gore's movie?