What makes heatwaves deadly? How much heat can the human body endure? When does heatstroke happen? Here, we explain: ...

Hottest. Earliest. Most extreme. California’s meteorologists and oceanographers keep dropping new superlatives about the temperatures in 2026. “There’s a bunch of claims circulating, some viral social ...

A record-setting marine heat wave stripped huge portions of Florida's coral reef of their colors in 2023, triggering the ninth and worst mass bleaching event in the Caribbean. Temperatures soared for ...

A long-duration heat wave is taking shape over the western half of the U.S. and is forecast to stick around in the days ahead. A high-pressure system in place over the West is keeping precipitation ...

With rainfall expected to be a little subdued, particularly during the second half of the monsoon season, India could be facing prolonged periods of intense heat this year. We explain.

A record-breaking heat wave is scorching some parts of the U.S., delivering summer-like temperatures in April. Major cities like Atlanta, Baltimore, Philadelphia, Raleigh, and Washington, D.C., are ...

Hot weather can trigger daytime sleepiness, fatigue and brain fog by disrupting sleep, causing dehydration and forcing the ...

The deep reds and oranges seen in temperature maps over the Indian subcontinent represent very high land and air temperatures ...

Health advisories issued by the government and doctors include the need for hydration, limiting outdoor exposure during peak hours, and watching for heatstroke symptoms.