If our fossil fuels run out in just decades, none of this will matter ... Western Europe and Anglo America don't look so good without refrigeration ...
However ... we won't be running out of fossil fuels ... we'll be running out of cheap fossil fuels, and have to start burning the not-so-cheap fossil fuels ... gasoline is about double the price from 50 years ago compared to everything else ... no reason it can't double again ... you'll pay it, or drive an EV ... it's NOT to soon to start engineering our new generation of nuclear power plants ... ones that are safe, reliable and produce a minimum of waste ... we have the technology, do we have the will? ...
One little nitpick on your wonderful tirade ... warmer means wetter ... crops will grow better ... otherwise you're spot-on correct ...