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Earth: The Power of the Planet Episodes Episode guide
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Rare Earth
5/5 Iain Stewart finds that life on Earth prospers because of the planet's unique conditions.
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Oceans
4/5 Dr Iain Stewart travels to surfers' paradise Hawaii to learn more about oceans.
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Ice
3/5 Ice isn't just something to put in a gin and tonic - it has carved out landscapes.
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Atmosphere
2/5 The history of the atmosphere, starting with the ozone layer's creation.
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Volcano
1/5 Dr Iain Stewart explains how volcanoes have been crucial to the development of life.