World’s oceans hit record 21.1°C, scientists warn of worsening marine crisis

Global ocean temperatures have reached a record high of 21.1°C, according to Copernicus, with scientists warning that seas could become even warmer as El Niño strengthens. Researchers say hotter oceans threaten coral reefs, fisheries, marine ecosystems and weather patterns, while increasing risks to food security and coastal communities worldwide.

The world’s oceans have reached their highest recorded temperatures, with average sea surface temperatures touching 21.1°C (70°F) on Friday and Saturday, according to the European climate service Copernicus.

Oceans hit record temperatures

The latest record narrowly surpassed the previous daily high recorded in March 2024. Scientists said the unusual August peak is particularly concerning because ocean temperatures normally reach their annual maximum around March and April, AP........

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