2024 marine heatwave bleaches 80% of southern Great Barrier Reef corals, killing over half by July.

A severe marine heatwave in 2024 caused catastrophic damage to the southern Great Barrier Reef, with 66% of coral colonies bleached by February, rising to 80% by April. By May, nearly half of the bleached corals had died, increasing to 53% by July. This marks the seventh mass bleaching event since 1998, occurring every two years, highlighting the urgent need for global action on climate change and reduced emissions. Similar impacts are seen in Western Australia, where thousands of fish have died and coral bleaching has intensified due to rising ocean temperatures.

2 months ago
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