An abnormally warm swath of water is spreading across the Pacific, and it now covers about 13.5% of Earth's surface.

The intense marine heat wave conditions that began roiling the Bering Sea in about 2016 resulted in the lowest winter sea ice ...

High odds warm waters persist off California, with El Niño increasing risks to marine life and fisheries through 2026.

Pacific Marine Heat Wave Sparks Weather Concerns ...

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

"That has been heartbreaking for me and we're seeing this happening across the whole coast." ...

Warming Pacific waters and El Niño could disrupt California marine food webs, raising risks for seabirds, fisheries and ...

A marine heat wave has undermined the success of seagrass restoration efforts at a site in north Wales, new research has found. More than 1.1 million seagrass seeds were planted at sites in two bays ...

(CNN) — Something unusual and with far-reaching consequences is lurking in the sea off the California coast, stretching all the way down the Baja Peninsula and more than 500 miles to the southwest. In ...

Within minutes of walking on a San Diego beach, marine ornithologist Tammy Russell found the feathered carcasses — one after ...

The National Weather Service issued a heat advisory, as parts of Los Angeles County could experience temperatures between the ...