Water temperatures have surged above 85 degrees in the Mediterranean Sea, where records have been broken every day for weeks.

A global review of extreme heat has found that between May 2024 and May 2025, nearly half the world's people (49% or 4 ...

The World Meteorological Organization confirmed in March 2025 that 2024 was the hottest year on record and the first year in ...

Europe is sizzling from a heat wave, with temperatures reaching 46°C (115°F) in Spain and wildfires spreading in several ...

The heat was so expansive that mountaintops, including the French Alps, that are usually frozen from snowpack saw record ...

Without human-induced climate change, extreme heat would likely be limited to just once every 250 years, while heat waves of the magnitude of what has been experienced in July would have been ...

During heat waves, the air is stagnant, with little wind to blow away pollutant emissions from sources like vehicles or buildings. Sunny, hot conditions also encourage ozone to form faster.

In summer 2024, 37 heat waves across the country were analyzed as part of a pilot initiative--a rapid extreme weather event attribution system. The goal: To quantify how human-caused climate ...

In the United States, heat waves now occur three times as often as they did in the 1960s, and one study, published in 2022 in the journal Copernicus, found that climate change is making heat domes ...

Record high nighttime temperatures, a dangerously high heat index and intense humidity swept through Chicago from June 21 to 23, marking the city’s first major heat wave of the summer. Ahead of the ...

Climate scientist Michael Mann explains the complex connections between climate change, atmospheric waves, and extreme weather.View on euronews ...

Unless society stops pumping more greenhouse gases in the air, “we can expect multiple factors to worsen summer extremes,” a ...