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 — ...

This story was published on June 19, 2025, and has been updated. The first significant heat wave of the summer is hitting much of the United States this week. From the Midwest to the East Coast, ...

Millions of people in the U.S. are trying to stay cool as the summer's first major heat wave continues to create dangerous conditions across the Midwest and along the East Coast. That heat is expected ...