> Ozone hole? Not sure how much of that was cyclical vs in human control.

If you don't know, maybe you should look it up instead of touting your ignorance in a public discussion forum? Your ignorance is not noteworthy. And while you're at it, you can educate yourself on climate change and proposed solutions to it, too. You seem to be suffering from several significant misconceptions, likely because you're bought into a narrative spun out by political hacks with zero understanding of the relevant scientific principles/knowledge and a vested interest in never changing that.