Your second line is the same that was used in regards to global warming and the hole in the ozone layer. It's a straw man, since nobody (sane) is saying it's 10

Your second line is the same that was used in regards to global warming and the hole in the ozone layer. It's a straw man, since nobody (sane) is saying it's 100% the fault of humans. That doesn't mean we can't affect something that large, we just take some time to do so.