A dangerous heat wave has descended on much of California and the U.S. Southwest, with triple-digit temperatures expected ...

Heat and poor air quality are becoming chronic problems. Here’s what Boston is doing to adapt. But first, here’s what else is ...

Spain is deploying 500 more soldiers to help battle wildfires that have ravaged parched woodlands during a prolonged heat ...

A cold front has been working its way into New England Wednesday afternoon, bringing with it showers and isolated ...

It's a beach run, a coastal row and a music party rolled into one, and it's about to become an Olympic event. On a sunny Southern California morning, nearly two dozen athletes gathered to try their ...

More than 20 locales set new record-high temperatures across the country Tuesday, including more than 16 in the interior ...