Heat waves are a growing global threat to human health, well-being and livelihoods. Across 12 major European cities during the summer of 2025, a 10-day period of extreme heat led to 2,300 deaths—1,500 ...

Meteorologists are reaching for superlatives to describe an oncoming heat wave so intense and rare for this time of year that it could leave some locations shattering their all-time temperature ...

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 ...

A ribbon of unusually warm ocean water now stretches roughly 5,000 miles across the Pacific, from the waters off Southern California deep into the central basin, and climate scientists say the pattern ...

A massive ocean hot spot is stretching across a 5,000-mile swath of the Pacific — from Micronesia to the coastal waters of California. Across this zone, waters are as much as 6 to 8 degrees above ...