In April 2019, a marine heat wave struck a coral reef on the island of Moorea in French Polynesia, killing much of the coral and the beneficial algae that colonized it. This “bleaching” event reduced live coral populations on the reef from about 75% beforehand to less than 17% a year later and led to a series of unexpected changes that have thwarted the reef’s recovery.
This article was originally published on this website.
