A Perfect Planet: Volcano

David Attenborough narrates a documentary revealing how the forces of nature drive, shape and support the Earth's great diversity of life. The first edition examines volcanoes, which responsible for both for the planet's breathable atmosphere and the oceans, but are also the architects of the planet, with over 80% of the Earth's surface being the result of magma bursting up from the molten interior - providing a platform for life