Coral Die-Off Marks Earth’s First Climate ‘Tipping Point’, Scientists Say

image via New Scientist

October 13, 2025, 6:00 PM

• •Global temperatures have surged, sparking concerns that global warming is accelerating.
• •The fourth global bleaching event began in January 2023, affecting more than 84% of the planet’s coral ecosystems.
• •Researchers estimate that even with the 1.5 °C goal of the 2015 Paris climate agreement, corals would continue to decline.
• •Preventing tipping points requires emphasizing immediate emissions reductions and scaling up technologies for removing carbon from the atmosphere.

Scientists have announced that widespread coral reef bleaching and death around the world marks Earth's first climate 'tipping point'. Surging global temperatures have pushed coral reef ecosystems into a state of widespread decline. The researchers say that without rapid action to curb greenhouse-gas emissions, other systems on Earth will also soon reach planetary tipping points. They suggest that the crisis is now, as coral reefs are facing massive disturbances that are both more severe and more frequent.

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