Documentary series looking at geology of the planet Earth.
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Documentary. The history of the atmosphere, starting with the ozone layer's creation.
Ice isn't just something to put in a gin and tonic - it has carved out landscapes.
Dr Iain Stewart travels to surfers' paradise Hawaii to learn more about oceans.
Iain Stewart finds that life on Earth prospers because of the planet's unique conditions.
Although they are destructive, volcanoes were crucial to the development of life on Earth.