Bleaching has killed 90% of near-surface corals in Indian Ocean's Chagos Archipelago

The extensive coral reefs of the Chagos Archipelago, a collection of more than 60 small islands in the Indian Ocean, have been badly damaged by coral bleaching events over the past two years that have killed roughly 90 percent of the corals to a depth of 90 feet, according to a new survey.

The widespread reef bleaching in the Chagos Archipelago, which contains the Diego Garcia military base used by U.S. and the U.K., comes on the heels of reports that coral bleaching driven by rising ocean temperatures has caused severe damage to roughly two-thirds of Australia’s Great Barrier Reef.

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