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.

The ocean’s calendar is being rewritten, and human activity is holding the pen. Researchers at the Woods Hole Oceanographic ...

The scorching heat spurring advisories in parts of Florida this week have also meant warmer ocean temperatures, which last year hit record-breaking levels around the state's coasts. Ocean surface ...

Almost a year ago, ocean surface temperatures around Florida’s coasts hit record-breaking levels – making it too dangerous for swimmers in some areas of the state. And while hot water does typically ...