The ozone hole is still over Antarctica, right...gosh, I feel sorry for all those penguins with skin cancer.
Oh, and for that matter, ozone is one of the things that produces the greenhouse effect and reducing the ozone layer will DECREASE global warming. Come on, now.
Finally, the biosphere has been fucked up in the past and has recovered. Dinosaurs went extinct. There were ice ages and lots of stuff died. The ice ages ended and lots more stuff died. Shit happens. The system balances itself.