CNN —Coral reefs around the world are experiencing a mass bleaching event as the climate crisis drives record-breaking ocean heat, two scientific bodies announced Monday — with some experts warning this could become the worst bleaching period in recorded history. If ocean temperatures don’t return to normal, bleaching can lead to mass coral death, threatening the species and food chains that rely on them with collapse. Professor Ove Hoegh-Guldberg, a climate scientist specializing in coral reefs based at the University of Queensland in Australia, predicted this mass bleaching event months ago. In February, scientists at the Coral Reef Watch program at NOAA added three new alert levels to the coral bleaching alert maps, to enable scientists to assess the new scale of underwater warming. Bex Wright/CNNIn mid-February, CNN witnessed extensive coral bleaching on Australia’s Great Barrier Reef – the world’s largest coral reef system – on five different reefs spanning the northern and southern areas.

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Persons: ” Derek Manzello, Ove Hoegh, “, Guldberg, ”, Lillian Suwanrumpha, Niña, El, Manzello, ” Manzello, Lady Elliot, Bex Wright, Selina Stead, ” Stead, David Ritter Organizations: CNN, Atlantic, National Oceanic, Atmospheric Administration, Reef, Reef Watch, Pacific, University of Queensland, NOAA, Getty, Niña, Australian Institute of Marine Science, Park Authority, AIMS, UN, Greenpeace Locations: Pacific, Florida, Caribbean, Mexico, Brazil, Australia, Persian Gulf, Indonesia, Africa, Seychelles, Raja Ampat, Indonesia's West Papua, AFP, El, Lady, Greenpeace Australia