Accomlished skiers and mountaineers, Christina Lustenberger and Guillaume Pierrel become the first to climb and ski Mt. Robon's technical south face.

A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

Learn more about the history of Sea Ice Today and ASINA. Sea Ice Today is produced by the National Snow and Ice Data Center (NSIDC), which is part of the Cooperative Institute for Research in ...