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Oceans

Episode 4 of 5

Geography series with Dr Iain Stewart. Iain travels to surfers' paradise Hawaii to learn more about oceans, explaining the difference between waves, tides and currents.

Geography series with Dr Iain Stewart. Iain travels to surfers' paradise Hawaii to learn more about oceans, explaining the difference between waves, tides and currents. In the Amazon, he rides the world's longest tidal bore. In the beginning, there were no oceans: they are thought to have gradually formed from volcano steam and melted comet ice. Change continues today: a new sea is forming in Ethiopia, which will separate East Africa from the mainland, and the Mediterranean is drying up.

59 minutes

Last on

Thu 25 Nov 202101:10
BBC Four

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Ice

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Rare Earth

See all episodes from Earth: The Power of the Planet

Clips

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Credit

PresenterIain Stewart

Broadcasts

  • Tue 11 Dec 200721:00
    BBC Two except East & Yorkshire
  • Thu 13 Dec 200702:45
    BBC One
  • Sun 16 Dec 200719:00
    BBC Two except East & Yorkshire
  • Sun 10 Feb 200822:00
    BBC Four
  • Wed 16 Jul 200810:30
    BBC Two except East & Yorkshire
  • Sun 24 Aug 200817:45
    BBC Two except East & Yorkshire
  • Mon 29 Dec 200815:00
    BBC HD
  • Mon 14 Sep 200920:15
    BBC HD
  • Thu 25 Mar 202114:00
    BBC Two except East, Scotland, Wales (Analogue) & Yorkshire
  • Wed 24 Nov 202120:00
    BBC Four
  • Thu 25 Nov 202101:10
    BBC Four