What sources of energy will the world run on in 2035?

Extracted 12AUG2011 from http://www.youtube.com/watch?v=iHPN9rJ6yPE&feature=youtu.be

The world is growing more and more hungry for energy. By 2035 global demand for energy may shoot up by more than one third, according to the World Energy Outlook 2010, the International Energy Agency's flagship publication. So where is this extra energy going to come from? And what sources are going to be used? Watch this video to find out more.

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