The National Oceanic and Atmospheric Administration says people should start exercising “caution” when the heat index reaches ...

A family of 11, including six children, was rescued off the Holbert Trail on South Mountain in Phoenix during a hot summer ...

Research my team and I published in the journal Science Advances in March suggests that long-term exposure to extreme heat ...

Dr. Ward studies how extreme heat is reshaping lives and livelihoods in communities across the United States.

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

As triple-digit temperatures hit the East Coast, individuals with a mental illness taking psychiatric medications could be at ...

Extreme heat is making air pollution worse, scientists say. And President Trump’s regulatory rollbacks could drive air ...

As tens of thousands of people braced for more extreme heat on Tuesday, authorities and public health experts in the United ...

The temperature in New York City has reached 100 degrees as the eastern U.S. sweltered under an extreme heat wave.

Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecast to be as much as 20 ...

Fire crews were called to conduct multiple mountain rescues amid extreme heat in the Phoenix area on Sunday, including one ...

The dangerous heat that's been blanketing our region is sending more people to emergency rooms. Doctors say pregnant women face special risks during these extreme temperatures.