To add to this, "coral reef bleaching" is not a coral reef die-off event, it means that the colorful symbiotic alge that coexist with the coral (many corals are

To add to this, "coral reef bleaching" is not a coral reef die-off event, it means that the colorful symbiotic alge that coexist with the coral (many corals are a lot like flamingos, they are themselves generally colorless, but other factors in their environment cause notable color) have left the coral that make up the reef, leaving it white. The coral it self (an animal by definition, not an algae) is still alive, although stressed, in a bleaching event. Reefs see bleaching happen on an annual basis, and extended bleaching can cause a die-off (the algae produces additional food for the coral) but the concept that hot water -> dead coral is, perhaps, not a direct impact. There's a couple of books by prominent marine biologists on this topic, that annual bleaching happens both in warm water and cold water corals. I'll dig up the citations if there's enough interest. That said, no comment on acidification, that is a different topic and I don't have any factoids on that