Low Carbon Solutions: Biofuels

Presenter Roland Pease visits Rothamsted experimental station and talks to scientist Ian Shields about growing and processing biomass.

He visits the Royal Society which is holding a two-day conference about biofuels and talks to David Pimental, who is sceptical about ethanol as a viable energy source.

From BBC World Service's Discovery Programme :: 2 May 2007 :: Dur. 23 min

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