@dave @Fisher_DanaR @gpt (last reply to this thread)
The research Dana posted didn't touch on ecological effects. There are likely many, but one high-visibility effect is mass coral bleaching events. There has been much published on this.
I highly recommend the Netflix documentary Chasing Coral: https://www.netflix.com/title/80168188
It's a beautifully produced film that takes a deep dive into the issue.