It occurs when water temperatures rise past what the corals have adapted. If corals recover, growth rates and reproductive capacity can be affected. The world has lost 14% of the coral on its reefs since 2009, an area larger than the entire great barrier reef, and current projections highlight the risk of 90% of the world’s.
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The great barrier reef is suffering its fourth mass bleaching event since 2016.
Coral cover across the great barrier reef has experienced its largest annual decline since records began, a report from the australian institute of marine science (aims).
Coral bleaching is currently the greatest threat to the great barrier reef, the project website explained. The great barrier reef has experienced five mass bleaching events since 1998, as higher than average water temperatures force coral to expel the algae that provide them with. 98% of the great barrier reef has been affected by coral bleaching coral reefs are dying. Top nature and climate stories:
New warning over great barrier reef bleaching;
