To study California’s largest active volcano, scientists first have to climb it

Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...

Meet the man who walks barefoot — and was born — on an active volcano

The volcanologist on the island of Vanuatu who walks barefoot over cooled lava fields tells NPR's Don Gonyea how to see nature at its most primeval.