Stephen Bede Scharper teaches religion and ecology at St. Michael's College, Toronto, Ontario. He is co-author of The Green Bible and author of Redeeming the Time: A Political Theology of the Environment.
Hilary Cunningham is the author of God and Caesar at the Rio Grande. Her principal interests are social movements, international borders, and security cultures. She has conducted research at both the US- Mexico and US-Canada borders. A secondary area of interest is the commercialization of human genetics and the development of "biological security" in the United States. She teaches in the department of anthropology at the University of Toronto.