Ernie Yanarella is Professor and Chair of Political Science at the University of Kentucky. He is an avid reader of SF and author of The Cross, the Plow and the Skyline: Contemporary Science Fiction and the Ecological Imagination (Brown-Walker Press, 2001) and a number of previous published articles on Kim Stanley Robinson's novels. He researches and consults on urban sustainability. His latest book with Richard S. Levine is The City as Fulcrum of Global Sustainability (Anthem Press, 2011).