Guardian: At 1.5C 90% of Coral Reefs will Die
8 hours ago Eric Worrall
Essay by Eric Worrall
But we already breached 1.5C.
Coral reefs are nearing extinction. 2026 must mark a turning point
Jason Momoa
Fri 17 Apr 2026 22.00 AEST
At 1.5C of global warming, up to 90% of coral reefs could be lost. The next few months could be a defining moment.
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Our coral reefs are under severe stress. The planet has just experienced the most widespread coral bleaching event ever recorded, lasting 33 months into 2025. Scientists warn that at 1.5C of global warming, up to 90% of coral reefs could be lost. Ninety per cent. And 1.5C is not lingering in the distance – it’s extremely close.
Even if the world somehow hits its climate targets, reefs are still getting pummeled by plastic pollution, coastal development, agricultural runoff and overfishing. They’re so fragile. And when reefs weaken, coastlines get hit harder by storms and rising seas. Homes and jobs become exposed. Cultures and sacred places are put at risk. And the incredible range of underwater life found only in reefs – once it’s gone, it’s gone for good.
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Through my work with the UN Environment Programme and the Global Fund for Coral Reefs, I’ve also seen how smart investments can lead to major change. Even a little bit of finance can go a long way to help people find new ways to earn a living without destroying nature, boost conservation of marine ecosystems and support communities in rebuilding sustainably after they’re hit by extreme weather.
https://wattsupwiththat.com/2026/04/23/guardian-at-1-5c-90-of-coral-reefs-will-die/