The variability is crazy this year too. North Europe is having 30º C mid days and 12º evenings which is very unusual and obviously not great for people and infrastructure.

Can we call it "earth overheating", because that's what it is?

I feel sorry for Europeans who aren't geared for this. Couple of years ago a monster heat dome sat on the Pacific Northwest. Many of my coworkers lived in and around Seattle and were suffering the lack of AC. My brain can't imagine living without.