Global Oceans Reach Record-Breaking June Temperatures, EU Satellite Data Shows

The oceans have never been warmer, recording an unprecedented average surface temperature of 21 °C in June, according to Copernicus, the EU’s Earth‑observation programme. This extreme heat is already impacting marine biodiversity worldwide, despite years of expert warnings. The emergence of a potentially strong El Niño pattern could further intensify global oceanic and atmospheric temperatures throughout 2026 and into the following year.

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