There are corals that live in warmer waters such as in the Red Sea which has some of the warmest sea water on earth. There are also groups doing research on way

There are corals that live in warmer waters such as in the Red Sea which has some of the warmest sea water on earth. There are also groups doing research on ways to help corals adapt to higher temperatures [1] I also wonder if we'll start to see the GBR move south along the coast of Australia as waters that were previously not favorable to corals are now starting to warm. The other problem in addition to warming is that as CO2 levels rise pH of seawater is going down. Hard corals require a pH that is somewhat alkaline (around 8.3 is ideal). [1] https://www.coralvita.co/