Episode details
Available for over a year
Peter Day meets the green entrepreneurs who are finding new ways to fuel the energy requirements of tomorrow. But is it right, in a hungry world, to grow crops to keep Western cars running?
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
Peter Day meets the green entrepreneurs who are finding new ways to fuel the energy requirements of tomorrow. But is it right, in a hungry world, to grow crops to keep Western cars running?
Programme Website