When it comes to the fall of the Roman Empire, this climate shift may have been the straw that broke the camel’s back.” ...

When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a ...

A volcanic fissure has erupted near Grindavík, Iceland, forcing evacuations and raising the hazard level to its highest ...

From ice climbing and backcountry skiing to dining inside a lava cliff and soaking in thermal pools, there is plenty to do ...

A volcano erupted to the south of Iceland's capital on Tuesday, spewing lava and smoke in a fiery display of orange and red that triggered the evacuation of tourists and residents, although air ...

A volcano in southwestern Iceland that has erupted repeatedly for more than a year again belched lava and smoke into the air on Tuesday, just hours after authorities evacuated the few remaining ...

Tourists evacuated as Icelandic volcano erupts, spewing lava and smoke - A red alert has been issued for the area ...

Tourists and residents were forced to flee as a volcano erupted again Tuesday in southwestern Iceland. Here's the latest.

A new column of steam rises from Yellowstone. While the expansive volcano shows no hints of an eruption, magma brews beneath the surface, fueling hundreds of geysers and other heated phenomena.