I was reading through that, waiting for them to mention marine fuel (which they do). Cleaner fuel is causing less cloud cover, so we’ve been accidentally geoengineering a cooler climate for a while - until we “fixed” it in 2020.

I read/watched something a few years back arguing that we should shoot sea water into the air from cargo ships to restore this beneficial effect.

My bad, I’ll try to eat more chicken alfredo