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Author: Jeffrey Nicholls

  • ENVIRONMENT

    How to survive the next five billion years

    • Jeffrey Nicholls
    • 09 July 2010
    3 Comments

    Every year we mine about a billion tonnes of iron ore. If we keep this up for five billion years, we will have dug up the whole earth to a depth of about 10 km. Here is a guide to how human existence might continue until the sun dies.

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