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The Conversation
Matthew England, Director of the ARC Centre of Excellence for Our Future Oceans and Scientia Professor in Oceanography, UNSW Sydney

The world’s oceans are the hottest on record for June – and El Niño is set to turn up the heat even more

Artur Debat/Getty

The world’s oceans are the hottest on record for June, pushing past records set during the 2023–24 El Niño years.

Right now, the average sea surface temperature is just under 21°C across the world’s tropical and temperate oceans. Before widespread industrialisation in 1870, the temperature was about 19.6°C.

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