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Key developments: New research shows that marine heatwaves represent just the peak of much longer periods of elevated sea temperatures, with heat lingering for months beyond the recorded spikes. The study reveals that traditional measurement methods miss more than 150% of the total heat exposure, indicating that the ocean’s thermal stress has been vastly under‑estimated.
Why it matters: Extended periods of warm water intensify stress on marine ecosystems, exacerbating coral bleaching, disrupting fisheries, and altering weather patterns. By uncovering the hidden heat, scientists can improve climate models and better predict the ecological and economic impacts of ocean warming.
What to watch next: Follow upcoming studies that aim to refine ocean‑temperature monitoring techniques and integrate the newly quantified heat exposure into global climate projections. Monitoring how this prolonged warming influences marine species migration, carbon sequestration, and extreme weather events will be crucial for adaptation strategies. [[1]]