Andrew Light is Assistant Professor of Environmental Philosophy at New York University, and Research Fellow at the Institute for Environment, Philosophy, and Public Policy at Lancaster University, UK. He has edited or co-edited thirteen books, including Environmental Pragmatism (1996), Social Ecology after Bookchin (1999), and Technology and the Good Life (2000). He is also co-editor of the journal Philosophy and Geography and President of the Society for Philosophy and Technology.

Holmes Rolston III is University Distinguished Professor and Professor of Philosophy at Colorado State University. He is often called "the father of environmental ethics" as an academic discipline and was featured in Fifty Key Thinkers on the Environment (2001). He is author of numerous books including Philosophy Gone Wild (1986), Environmental Ethics (1988), Conserving Natural Value (1997), and Genes, Genesis and God (1999). He is past president of the International Society for Environmental Ethics.