Worst coral bleaching episode on record hits 84% of the world's reefs

This post was originally published on France24

84 percent of the world’s coral reefs have been hit by the worst bleaching episode on record, in an unfolding human-caused crisis that could kill off swathes of essential ecosystems, scientists warned Wednesday. Reefs can rebound from the trauma but the window for recovery is getting shorter as ocean temperatures remain higher for longer.