Laura Westra is Professor Emerita (Philosophy) , University of Windsor, Canada, and Sessional Instructor at both the Faculty of Law, University of Milano (Bicocca), Italy, and the Graduate Faculty of Environmental Studies, Royal Roads University, Canada. Mirian Vilela is the Executive Director of the Earth Charter International Secretariat and the Earth Charter Center on Education for Sustainable Development at the University for Peace, in San Jose, Costa Rica.