Dozens of cities are expected to meet or surpass record high temperatures for this time of year as part of a heat wave that will hit huge swaths of the country.

As the senior climate editor at NPR, when extreme weather impacts us, I often send out guidance to the newsroom to help everyone understand the role of climate change. Here's what I tell them.

Certain common medications—including diuretics, blood pressure and heart drugs, mental health medications, stimulants, and some over-the-counter allergy and sleep aids—can increase the risk of ...

Some 44 million Americans were under a heat wave warning Saturday as temperatures in the Rocky Mountains and northern Plains of the United States were expected to hit 43°C (110°F) over the weekend.

Electronic health records showed within weeks that 8% to 9% of emergency visits during two 2025 heat waves were caused by the ...