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 ...

Climate change has been exacerbating heat waves, and the problem isn't going away anytime soon. An increasingly hot planet — due largely to burning fossil fuels such as coal, oil and natural gas — ...

We've all heard: "It's not the heat; it's the humidity." Well, it's not just a cliché; there is truth to it. According to the National Weather Service, the heat index is what the temperature feels ...

(The Conversation) – Beach trips, cookouts and other outdoor activities are in full swing as summer heats up and the first widespread heat wave of 2025 arrives. For many people, summer is their ...

The first big heat wave of 2025 has arrived, coinciding with the official start of summer. More than 40 million people in the U.S. were under heat alerts Friday, according to the National Weather ...