Unfortunately, its gloom and doom that sells papers and gets TV ratings. If enough people get sick of it, and tune it out, I suppose maybe the media will get wise and find something else to get our attention.
Regarding ozone depletion, let me first say I am no expert in the matter. But the course of events as I understand it, goes like this:
- some scientist or group of scientists theorize the chemical reactions involved in the maintenance of the ozone layer, describes why the ozone layer is important to life on Earth, and also notes a mechanism involving CFCs which could deplete ozone.
- early adopter nations (I think it was Sweden) phase out use of CFCs
- later, in 1985, a huge hole in the ozone layer in noted over Antarctica, and scientists are able to give an feasible explanation of this occurence using their CFC-ozone depletion model. Restrictive legislation in the US follows pretty quickly and CFCs are phased out over a period of years.
- We are now measuring a reduced rate of ozone depletion.
I think there is no direct proof, as Mace says.
Its too bad that science has become so sensationalized (and politicized).
Are you sure the global warming alarmists are already spending your money? AFAIK, pollution restrictions have been eased under GW, and while there is talk of carbon caps and trading, nothing is actually been done yet in the U.S.
If you've got links to scientific studies that show some other mechanism or ozone depletion and recovery I'd be interested to look at them.