Stewart Brand has always been an environmental thought leader and progressive iconoclast. In this video he suggests a shift in the environmentalists' dogmatic approach, and describes a process of reasonable debate and experimentation. His iconoclastic proposals include transitioning to nuclear energy and ecosystem engineering, and are sure to provoke widespread debate. He has helped define the collaborative, data-sharing, forward-thinking world in which we live. Brand is the founder of the Whole Earth Catalog, the Global Business Network, the Long Now Foundation and the Well. Check this out!