Main content
What mushrooms and carbon dioxide tell us about volcanoes
Volcanologist Tamsin Mather on using deep gas emissions to peer inside the Earth
Photo: Mount Etna in Italy (Getty Images)
Duration:
More clips from The Forum
![]()
What are the origins of the open plan office?
Duration: 03:44
![]()
The birth of the pill
Duration: 04:46
![]()
1930 World Cup highlights
Duration: 03:46
![]()
Moths: the story of the butterfly of the night
Duration: 04:41





