In 1998, scientists recorded world's first mass bleaching event, years later study finds global coral cover well below normal levels as reefs at risk of irreversible decline threatening marine life, ocean livelihood, El Nino weather raises fears

With El Niño weather patterns intensifying and ocean surface temperatures reaching a record high of 21.1 degrees Celsius (69.98°F) ​on August 22, another bleaching event could strike the world's reefs this year, as per the report.

Raccontata daeconomictimes.indiatimes.com