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World's largest coral bleaching event affects over four-fifths of reefs

The bleaching event began at the start of 2023 and continues today, affecting 82 nations, territories and economies.

Coral bleaching is accelerating as our oceans warm.
Coral bleaching is accelerating as our oceans warm. (AN/Milan Degraeve/Unsplash)

Bleaching-level heat stress is harming 84% of the world's coral reefs in an unprecedented event that began more than a year ago, scientists say.

The most intense global coral bleaching event on record began at the start of 2023 and continues today affecting 82 nations, territories and economies, the International Coral Reef Initiative said on Wednesday.

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