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World’s seas heated by a record 23 zettajoules last year

Global Published 30 September 2026, 11:00 · archived 30 Sep 2026

The injection of thermal energy, 40 times that used by humanity in total, comes amid an increasing rise in sea levels and continuing acidificationA record-breaking 23 zettajoules of heat was sunk into the world’s seas last year, leaving ocean waters hotter, higher and less hospitable, a report has found.The explosive addition of thermal energy, which was almost 40 times greater than all the energy humanity used that year, comes amid far-reaching changes to the deep water bodies fundamental to life on Earth. Continue reading...

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