Part one: The rocks of volcanoland and how they erupt. The molten Earth : what causes Earth's volcanoes?
Journey to the surface of the Earth : why do volcanoes erupt in different ways?
Reading the rocks : how do we understand past eruptions and predict future volcanic hazards?
Part two: The gases of volcanoland and their global effects. Breath of the Earth : what messages do volcanic gases carry from the deep?
Volcanic winter : how can big volcanic eruptions briefly chill the planet?
All in the balance : how do volcanoes help keep Earth's long-term climate stable?
Part three: The reach of volcanoland through outer space and deep time. Home truths from the heavens : what is the nature of volcanism on other worlds?
Mass extinction : did large-scale volcanism trigger past extreme environmental change?