None of this will matter when the oceans food chain collapses.
"With higher metabolic rates in the warmer water, and therefore a greater demand for food, there is a mismatch with less food available for carnivoresthe bigger fish that fisheries industries are based around," says Associate Professor Nagelkerken. "There will be a species collapse from the top of the food chain down."
https://phys.org/...0-global-marine-analysis-food-chain.html
When this happens the planet will starve to death, triggering the greatest mass extinction not seen in this world for 60 million years.