I think this one will be harder. Confronting it requires completely changing our ways of life, and massively scaling back which is something monied interests REALLY do not wanna do, but we can still overcome.
It will be hard. And I wanna fight to do it anyway god damnit.
I know the hole in the ozone later specifically was solved by a unified concerted effort to address the problem that caused it. I didn't know the details, but I assume leaded gasoline was the same.
I am not presently seeing that kind of deliberate unity on climate change.