I remember seeing an article about Alberta and how if the temperature was above a certain °C for too long there was hive collapse (I’d just link the article if my search fu wasn’t failing me, sorry you’re getting the shoddy memory version). The article also implied we were pretty much boned because it looked like climate change, regardless of the cause, was going to push us there in a few years because we’d missed some doomsday cutoff (I love the whooshing noise those make as they go by).