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Ring of Fire

Episode 3 of 8

Billions of years ago Earth was covered by a single ocean. Today nearly a third of the land is dry. Aubrey Manning follows a trail of clues from Bolivia to Alaska and New Zealand to find out how the change came about.

50 minutes

Last on

Thu 15 Aug 200219:10
BBC Four

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The Deep

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Journey to the Centre of the Earth

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Broadcasts

  • Sun 15 Nov 199820:00
    BBC Two except East, South East & Yorkshire
  • Mon 22 Jan 200119:10
    BBC Two except East, South East & Yorkshire
  • Thu 27 Sep 200119:00
    BBC Knowledge
  • Thu 27 Sep 200123:55
    BBC Knowledge
  • Thu 29 Nov 200119:00
    BBC Knowledge
  • Thu 29 Nov 200123:15
    BBC Knowledge
  • Fri 18 Jan 200209:40
    BBC Knowledge
  • Fri 18 Jan 200212:40
    BBC Knowledge
  • Fri 18 Jan 200215:40
    BBC Knowledge
  • Thu 15 Aug 200219:10
    BBC Four