84% of the World's Coral Reefs Hit by Worst Bleaching Event on Record, Scientists Say

Unprecedented Bleaching Event Affects 84 Percent of World's Corals

One year after the official declaration of the fourth global coral bleaching event, NOAA and the International Coral Reef Initiative (ICRI) have upda...

Coral bleaching is affecting nearly all the world’s reefs, new NOAA report says

Coral reefs are a crucial part of the marine ecosystem, providing habitats for all sorts of marine life and protecting coastlines from storm damage. But scientists say rising ocean temperatures are posing a grave threat to the future of the world’s reefs. Ali Rogin reports.

World's coral reefs hit by worst bleaching on record

Harmful bleaching of the world's coral grew to include 84% of the ocean's reefs in the most intense event of its kind in recorded history, the International Coral Reef Initiative says.

World's coral suffers mass bleaching

Harmful bleaching of the world's coral grew to include 84% of the ocean's reefs in the most intense event of its kind in recorded history, the International Coral Reef Initiative says.