That's the sound of water seeping from a sunbaked and slushy Swiss glacier that geoscientists are monitoring for signs of continued retreat by the majestic masses of ice under the heat of global ...

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

More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

Extensive triple digit heat hit Philadelphia as the heat dome crushing the Eastern half of the nation sizzled to what should be its worst Tuesday.

People are taking to social media to moan and groan about the "oppressive" heat wave affecting much of the U.S. Here's what ...

Some parts of the U.S., such as Phoenix, Arizona, are famously hot without the mugginess. Phoenix and nearby desert regions ...