"I'm not a businessman who does the environment; I'm an environmentalist who does business" - the words of Dale Vince, boss of the word's first green energy company Ecotricity who previously spent a decade as a New Age Traveller, and now owns a football club. Along with legendary music journalist John Robb, he has written "Manifesto", an autobiography which also offers a way forward for the planet.

Produced and presented by Adrian Goldberg.