Nature Is Overheating: Ocean Heat Records Are Breaking Again episode artwork

EPISODE · Feb 26, 2026 · 13 MIN

Nature Is Overheating: Ocean Heat Records Are Breaking Again

from How To Protect The Ocean · host Andrew Lewin - Marine Biologist & Science Communicator

Nature is absorbing more heat than we realize, and most of it is going into the ocean. Global ocean heat content has reached record highs, confirming what climate scientists have warned for years: the ocean has absorbed more than 90 percent of the excess heat trapped by greenhouse gases. Data from NOAA and findings summarized in the IPCC AR6 report show a continued upward trajectory, with no sign of stabilization. Ocean heat is not just a statistic. It is driving stronger marine heatwaves, coral bleaching, shifting fisheries, oxygen loss, and rising sea levels through thermal expansion. Peer reviewed research published in Advances in Atmospheric Sciences and Nature Climate Change confirms that both the magnitude and frequency of extreme ocean warming events are increasing. The ocean has buffered atmospheric warming for decades, but ecosystems are beginning to show clear stress signals. If the ocean continues to store heat at this pace, marine ecosystems will face compounding pressure from warming, acidification, and overfishing. The key question is no longer whether the ocean is warming, but how much additional heat it can absorb before ecological thresholds are crossed. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube    

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Nature Is Overheating: Ocean Heat Records Are Breaking Again

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This episode was published on February 26, 2026.

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Nature is absorbing more heat than we realize, and most of it is going into the ocean. Global ocean heat content has reached record highs, confirming what climate scientists have warned for years: the ocean has absorbed more than 90 percent of the...

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