Anyway, everyone probably recognized the first interview subject in this series, Sir Richard Branson. But who is Kevin McCloud? He's an architect-turned-environmentalist known more in the UK than here in the U.S., as he is on Channel 4's 'Grand Designs' there. For his sit-down with Saab, he talked about ways he's greened up his home and lifestyle, including installing a biomass boiler and growing his own vegetables. Conveniently, he drives a Saab BioPower car on E85. He also envisions the possibility of a one-fuel future many decades from now. In the meantime, all of the possibilities will duke it out to see what is the best for our long-term sustainability and availability. You can read the full interview here.