Mount Etna in Sicily has been active since 12 February, spewing ash and causing flights to Catania to be diverted. The ...

Scientists have raised concerns after the alert levels for three U.S. volcanoes were upgraded due to increased activity.

Oxygen is vital to many medical procedures. But a safe, affordable supply is severely lacking around the world, according to a new report. Bringing Canada into the United States, however farcical ...