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The world’s oceans just broke a disturbing record

The coastal promenade in Trabzon, Turkey, on June 27, 2026, just days after the record-setting ocean temps were recorded on June 21. | Ertugrul Bastan/Anadolu/Getty Images This story originally appeared in The Guardian and is republished here as part of the Climate Desk collaboration. Temperatures on the ocean surface have hit a record high, raising fears of another burst of extreme heat this summer. On June 21, temperatures outside the polar regions exceeded the extraordinary highs observed at the same time in 2023 and 2024, the Copernicus Climate Change Service said on Wednesday....