Discover the inspiring story of Kenlon Johannes, the "godfather of biodiesel," who helped turn a revolutionary idea into a thriving industry. As the first executive director of the National SoyDiesel Development Board, now Clean Fuels Alliance America, Johannes championed the use of excess soybean oil in diesel engines. Clean Fuels CEO Donnell Rehagen and Johannes describe how biodiesel transformed from a concept into a vital part of the U.S. energy landscape.