Millions in Southern California are facing extremely warm temperatures in the upper 90s this week amid a late October heat ...

"The wildfire season has lengthened in many areas." Millions impacted as sweltering heat shatters 94-year-old record: ...

Kevin Miller can get a person to the brink of heat stroke in 30 minutes. In a chamber with a temperature of around 100 degrees, he starts them out on the treadmill, switching off between three minutes ...

More frequent and intense extreme heat — the deadliest type of weather in the U.S. — is a direct result of a warming planet. As heat-trapping pollution warms the planet, extreme heat events are ...

Late October brought an unexpected heat wave to Southern California, pushing temperatures into the upper 90s°F, significantly ...

One study found that agricultural workers had more than 35 times the risk of heat-related deaths than other workers. But ...

“An anomalously strong ridge of high pressure centered over the Four Corners states will lead to a significant heat wave,” the National Weather Service said in a national forecast discussion Tuesday.

Rising greenhouse gases exacerbate cardiovascular mortality in older heart failure patients by increasing extreme temperatures. A U- or J-shaped relationship exists between nonoptimal temperatures and ...

The Southwest is in for peak dog days as a looming heat wave has triggered extreme heat warnings and advisories for 80 million people from the U.S.-Mexico border to southwest Utah. “An anomalously ...