In each episode, geologist Dr. Iain Stewart explains the effects and importance of a specific force of nature, such as wind or volcanism. He also examines the various ways in which it shapes planet earth itself and influences life on it, often in conjunction with other natural forces, and sometimes with lifeforms, as in the 'apocalyptically' grave case of global warming.
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Air Date: 2007-11-20
Volcanoes have a fearsome reputation. In reality, they are the most important force in the creation of the planet as ...
Air Date: 2007-11-27
Iain travels into the stratosphere in a Cold War fighter, gets his eyebrows singed in Siberia and discovers why Argen...
Air Date: 2007-12-04
Ice may be nothing more than frozen water but, as Iain explains, it holds extraordinary power. Descending 150m down a...
Air Date: 2007-12-11
Travelling from Hawaii to the Amazon and Ethiopia and then on to the Mediterranean, Iain tells the story of the ocean...
Air Date: 2007-12-18
Iain looks at the big picture of Earth's place in space. It's taken four and a half billions years and several great ...