ABSTRACT
When Mario Molina and F. Sherwood Rowland published their theory of ozone depletion in the June 1974 issue of Nature, aerosol products accounted for about half of all CFCs consumed worldwide. A decade earlier, aerosol products had accounted for an even higher percentage of CFC use; their percentage of total CFC use had decreased because global CFC solvent and foam uses were rapidly increasing, because some aerosol enterprises were switching from CFCs to hydrocarbon propellants, and because other enterprises were innovating with formulations that used a smaller amount of propellant. Nevertheless, in 1974 much of the world’s aerosol production was still solidly CFC-based.
