We all need electricity. It's something we often don't even think about - we just switch the laptop on or plug our phone charger in. But electricity has to come from somewhere - and ideally it should be environmentally friendly. So is wind energy the solution we've all been waiting for? How eco-friendly is it, really? Join us and professor Simon Hogg from Furham University when we find out.

Music by Scott Holmes, David Mumford, Rachmaninow played by Vadim Chaimovich and Chris Zabriskie. A sound by GoGo. Find all the tiles used here. Please rate us on iTunes! Photo by pastitio/flickr (CC-BY).

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