Record ocean heat has taken a devastating toll on one of the world’s greatest natural wonders, with coral bleaching on ...

The reason for the bleaching: rising ocean temperatures; corals, a vital marine organism, are affected by sea temperature. The phenomenon has affected coral reefs in every major ocean basin.

More than 50% of affected corals monitored ... emissions targets.” The bleaching hit areas of the reef not impacted before, and disease and death were found in coral species considered resilient ...