Question

How would increased chlorofluorocarbons (CFCs) in the atmosphere affect the growth of vegetation throughout the world?

Answer 1

It could ultimately kill all almost life on earth due to its destructive effect on the ozone layer. There is a interesting study if you'd like to go indepth by Sherry Rowland and Mario Molina. The compound has a low reactivity and therefore can decend far up in the ozonlayer where the ultraviolate beams will catalyse a reaction.