Riley E. Dunlap is Dresser Professor and Regents Professor of Sociology at Oklahoma State University, Past President of the International Sociological Association's Research Committee on Environment & Society, and Past Chair of the American Sociological Association's Section on Environment & Technology. He is senior editor of the Handbook of Environmental Sociology and Sociological Theory and the Environment, and a Fellow of the American Association for the Advancement of Science.Dr. Robert J. Brulle is Professor of Sociology and Environmental Science at Drexel University, and Past Chair of the American Sociological Association's Section on Environment & Technology. He is author of Agency, Democracy, and Nature: The U.S. Environmental Movement from a Critical Theory Perspective and co-editor of Power, Justice and the Environment. He was a 2012 -2013 Fellow at the Center for Advanced Study in the Behavioral Sciences at Stanford University. Less