environment · 3 outlets · 3 linked reports
The Great Barrier Reef Enters 2026 Reeling From Record Back-to-Back Bleaching
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Summary
- The Great Barrier Reef suffered its most spatially extensive bleaching on record in 2024, affecting 74% of surveyed reefs across all three regions.
- In 2025 it endured a sixth mass bleaching since 2016 — only the second time on record it bleached in consecutive years — with the Great Barrier and Ningaloo reefs bleaching simultaneously for the first time.
- Both were part of the fourth global bleaching event, which struck 84% of the world's reefs across 82 countries from 2023 through early 2025.
The question
Rising ocean temperatures are pushing coral reefs toward collapse.
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