A broad swath of the Pacific Ocean is simmering from an exceptional marine heat wave that scientists warn could just be settling in. Marine animals are already feeling its effects.

Across the United States and around the world, extreme heat events are becoming more frequent, more intense and longer ...

Extreme weather poses a big threat to birds. Yet there is a lack of both knowledge and methods for measuring its negative ...

A vast pulse of warm water is moving east beneath the tropical Pacific. You can’t see much of it from space, because most of ...

A severe heat wave is predicted to impact 12 states in the US during Memorial Day weekend, with temperatures soaring between ...

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 this ...

Temperatures have exceeded 46°C across the northwest and center, schools are closed, hospitals have set up dedicated ...

California’s coastal waters are experiencing a marine heat wave, with record or near-record ocean temperatures reported along ...

The Philadelphia region could see record-breaking temperatures during the next three days as sunny, hot and humid conditions ...

When a heat wave comes, many head to the beach for relief in the water and seawide winds that are sometimes cooler. Today is ...