William O'Neill, SJ, is a professor emeritus of social ethics at the Jesuit School of Theology of Santa Clara University. He held the Jesuit Chair at Georgetown University from 2003-04 and has served on the editorial board of the Journal of the Society of Christian Ethics and the board of directors of Theological Studies . He is the author of numerous articles on moral theology and ethics and The Ethics of Our Climate: Hermeneutics and Ethical Theory (Georgetown University Press, 1994). He is currently serving as a member of the Mission and Identity Task Force for the Jesuit Refugee Service, stationed in Nairobi, Kenya.