The intensifying and expansive heat wave affecting around 150 million people in the United States from Wisconsin to Washington, DC, bears the hallmarks of human-caused global warming. Hundreds of ...

Just in time for summer, here comes the heat. "A dangerous, widespread heat wave will bake the central and eastern U.S., bringing the hottest temperatures of the year and uncomfortably muggy air to ...

A heatwave is hitting Ohio and much of the U.S., with temperatures in the 90s and heat indexes over 100 degrees. The extreme heat increases the risk of heat-related illnesses, car breakdowns, and ...

OK. One of the times I went running this week in our nation's capital, it was early in the morning but already 82 degrees and 82% humidity. Washington, D.C., has had daytime temperatures over 100 this ...

Forecasters predict the worst of a record-setting heat wave may soon be over — but millions still need to take precautions to stay safe from dangerous heat. The most significant heat conditions are ...

Today marks the second straight day of high temperatures in the 90s and heat indices topping 100°, and unfortunately, this is just the beginning of a prolonged and potentially dangerous heat wave ...