“We saw damage almost everywhere, from the Bahamas to the Great Barrier Reef.“
Corals can become stressed when temperatures around them rise just 1˚C (1.8˚F) above their tolerance level. With water temperature elevated from global warming, even a minor heat wave can become devastating.
If global temperatures rise by 2˚C (3.6˚F) or more, only about 1% will still exist.