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The fourth global bleaching event is confirmed

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NOAA Coral Reef Watch and the International Coral Reef Initiative jointly confirmed that the thermal stress recorded through 2023 and into 2024 constituted a fourth global bleaching event, with bleaching-level heat stress recorded across reef areas in the Atlantic, Pacific and Indian Oceans. Subsequent updates reported the affected share of global reef area rising through the following year to a level exceeding any previous event. The declaration is a statement about satellite-measured thermal stress across ocean basins, not a survey of mortality, and the two should not be read as the same measurement.

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/atlas?object=EVT_FOURTH_GLOBAL_BLEACHING_2024