Beneath the crust of North America, scientists have found that the deep roots of the continent are slowly dripping away in blobs of rock.

A relentless storm is unleashing floods and tornadoes. Here's how a warmer atmosphere and a simmering Gulf of Mexico may be ...

The US will know “soon enough” if Putin is “serious about peace”, Marco Rubio said, as Nato leaders call for Moscow to be ...

Little of America’s energy comes from geothermal sources, but that could change quickly.

NBC’s Chase Cain reports from Antarctica, where melting ice is accelerating sea level rise and disrupting global weather ...