The energy that supercharged Hurricane Milton into a Category 5 storm on Monday came from the waters of the Gulf of Mexico, which have been abnormally warm not just at the surface, but at depth, too.

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 ...

Australia’s ocean temperatures reached a record high in 2025, with sea surface temperatures warming close to 1°C above the long-term average. The mean annual sea surface temperature in the Australian ...