 In addition to his work making feature-documentaries, in the early 1990s he was commissioned to create a 24-part semi-interactive permanent installation at the JFK Presidential Library in Boston.His work with environmental issues, particularly the worldwide acclaim surrounding his film Pandora's Promise, led him to co-found the non-profit clean energy advocacy group Energy for Humanity with environmental campaigner Kirsty Gogan and philanthropist Daniel Aegerter.Stone is also one of 18 co-authors of the Ecomodernist Manifesto which challenges conventional thinking about the meaning of sustainable development.