Happiness, Climate Change and Avalanches - S2.E6
Dallas hits the streets to discover what makes us happy, while Liz travels to Norway to investigate the latest technology to combat climate change. Jem puts himself in harm's way in avalanche country, and Dr Yan sets an optical illusion challenge to a WI meeting.
Happiness, Climate Change and Avalanches - S2.E6
April 26, 2010
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