MattTwo? relevant papers wereFarman, JC et al 1985. Nature 315Stolarski, RS et al 1986. Nature 322Joshua is right, there was a lot of industry resistance and science was used to oppose regulations for a long time. The Clean Air Act in the US (1977) controlled CFC in aerosol spray cans without empirical evidence (no measurements of decreased ozone, no increase in UV-B or skin cancer, etc). Industry thought this was setting a bad example. At the same time this was a tiny economic problem compared to <a href="http://waorrv.com">clmoite.Samehow</a> the link to my book got mixed up, it should be