Heat waves can form when a high-pressure system moves into a region and stalls. The system can force warm air downward, acting like a cap as it keeps the cool air near the surface from rising, ...

Tiny aerosol particles in the air play a big role in regulating how much sunlight our planet absorbs or reflects, and how ...

More than 600 people die each year from heat-related complications in the United States, according to the Centers for Disease Control. These deaths are preventable -- follow these tips from ...

Extreme heat can become lethal quickly. A young man cools off at Washington, D.C.'s Yards Park during a heat wave in 2021. Olivier Douliery/AFP via Getty Images For many people, summer is a time for ...

Heat and smoke from wildfires are spreading across the country this week, impacting air quality and prompting heat alerts from Canada to the Gulf of Mexico. A ridge of high pressure has expanded over ...

A peer-reviewed study published in Science has documented frequent new particle formation during a heat wave, a phenomenon ...

Waves from the Pacific Ocean break along the coast near the 60-ft high Victoria Beach Pirate Tower on a summer day on Sept. 19, 2025 in Laguna Beach, Calif. Waves from the Pacific Ocean break along ...

The 2021 heat dome in the Pacific Northwest that overwhelmed emergency rooms and left hundreds dead. The 2022 heat wave in India that devastated the wheat harvest. The deadly heat waves in France in ...

Southeast Australia is enduring a record-breaking heat wave, with temperatures rising above 40ºC in many areas. For vulnerable people, particularly older Australians, this heat is not only ...