When I first started taking climatology back in the day, I thought it a bit paradoxical that profs kept going on about how global warming would lead to more extreme weather when, on a first principles basis at least, I would've thought it should lessen weather variability. Anthropogenic warming is an insulating effect, and that should tend to even out conditions across the planet, just as insulating your home should reduce drafts and what not.
I guess my problem was that I had it in my head that greater variability = more chance to hit extremes, and we were going the other way. But the way things are playing out, it's less variability that is giving us what we view as aberrant weather. That heat dome that never leaves or that storm system that parks itself over your head for days on end. We get too much of one thing because the weather systems are actually becoming less chaotic and getting stuck in holding patterns for longer than is healthy.