Now - what could possibly happen if pollution would be greatly reduced? For a very long China has been the number ONE country contributing to polluting the environment till today. So, let's say that for 3-6 months most factories in China (and across the globe) would stop working. Transportation would also reduce greatly.
It will be a good approach to palliate the impacts of global warming and the ozone layer depletion. Nevertheless, I honestly do not believe that humans can do much to affect nature. Things seem to be changing because we are obsessed with record taking. Nothing new is happening. We can't bring the sun nor can we make it stay up.
Thanks for sharing your thoughts. Cheers!