The year 2025 was the warmest on record for the heat content of the world’s oceans. Ocean heat content (OHC) increased by around 500 zettajoules – billion trillion joules – since the 1940s.

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Every calendar year since 2019, ocean temperatures have reached new record highs. 2025 was no exception, according to a new study. The study, published Jan. 9 in the journal Advances in Atmospheric ...

Globally, it was the sixth hottest year on record for surface temperatures, according to data released by NASA and the National Oceanic and Atmospheric Administration in their annual global climate ...

MANATEE BAY, Fla. -- Preliminary ocean temperature off the coast of South Florida reached triple digits, which could be a global record, according to experts. A buoy in Manatee Bay, Florida, reported ...

Elkhorn and staghorn corals used to carpet Florida’s reef system, rising like antlers from the seabed — but not anymore. These crucial coral species are now “functionally extinct” in the region after ...

Ocean temperatures set a record high in 2025, according to a new study. The authors found that the heat content of the ocean increased by about 23 zettajoules between 2024 and 2025. That’s roughly the ...