Obviously the guy on the internet. You're an idiot if you don't understand that.
These fools just proved that the graphic I posted on disinformation applies to climate change whack-a-doodles as well as anti-vaxxers.
What these guys don't want to believe (and that is part of the disinformation) is that it isn't one or the other. It is possible (probable) that there is a natural cycle that we're accelerating. Like Jim said, there was an improvement when the cars came off the roads last year, in the late 80's/early 90's when the west cleaned up cars and factories when Eastern Europe dissolved (getting rid of the Trabant probably put us ahead by 10 years) and if China would clean up its act then we'd make significant progress.