It might feel unseasonably hot where you are right now. That's thanks in part to a heat wave in the Pacific Ocean.

A massive heat wave is hitting the Pacific Ocean from Kamchatka to California. Water temperatures several degrees above ...

"Marine heatwaves have become common annual occurrences," Hager said, crediting the rise in heat waves with the blob's first iteration in 2013. She noted that the heat wave grew almost 10 million ...

Amid ongoing wildfires, extreme heat is gripping the Pacific Northwest, with temperatures ranging from the upper 80s to well over 100 degrees across Oregon on Tuesday, Aug. 26, 2025. While the day is ...

The June 2023 heat wave in northern European seas was "unprecedented but not unexpected," new research shows. During the heat ...

As climate change worsens, the frequency and severity of deadly heat waves continues to increase. More than 21,000 Americans ...

More than 30 million people are under extreme weather alerts Sunday as a sweltering heat wave lingers across the West. Excessive heat warnings and watches were effective in parts of California, Oregon ...

Extreme heat can trigger excessive sweating that overwhelms the body’s natural cooling system, potentially leading to heat cramps, heat stroke and even death in severe, untreated cases. An ...