Tracey Logan asks if scientists are ready for the next Icelandic volcanic eruption.
Tom Heap meets the scientists trying to lessen the impact of volcanic eruptions.
Brian Cox, Robin Ince and special guest Jo Brand look at the science of volcanoes.
Could volcanoes be unlikely allies in the fight against climate change? Tom Heap reports.
Melvyn Bragg and guests discuss the formation and eruption of volcanoes.