The man who watches volcanoes
Media playback is unsupported on your device
Video

Meet the man who watches volcanoes

Last month a BBC crew got caught up in an eruption on Mount Etna.

Boris Behncke works for Italy's National Institute of Geophysics and Volcanology (INGV) and is one of the scientists monitoring the volcano.

Go to next video: Constant watch on Mount Etna