There is a big hole in the plan to re-cover the planet with ultra violet ray-blocking ozone–global warming.
The greenhouse gas build up currently underway could be a lot worse if it were not for the accidental destruction of the protective ozone layer.
The persistent seasonal hole in the ozone above Antarctica has likely helped slow down the effects of global warming.
So what happens when the hole is plugged?
The Ozone Hole can be recovered artificially; I have a research that describes the procedure to achieve this
http://stephaz.webs.com/ozoneholerecovery.htm
We need not await natural recovery put at 50years but should work on the artificial recovery research
http://stephaz.webs.com/ozoneholerecovery.htm