Techweenie is right and showing his age.
The ozone was when we worried about global cooling and we would lose the greenhouse effect if the ozone layer got diminished.
The 1970’s Global Cooling Compilation – looks much like today | Watts Up With That?
So now that we are in the days of worrying about global warming, I let out as much CFC from old car A/c 's and hairspray is important and use styrofoam cups as much as possible to do my part in ripping a bigger hole in the ozone to help with stopping global warming, We have got to do our part!
Of course I support using whale oil, the renewable natural resource, instead of petroleum. Because for every whale that is killed, we not only get the oil but we eliminate another global warming CO2 gas producer.
Life is complicated and knowing what to do for the latest fear is tough. But dog gone it I am on it!!