Joan McGregor Ph.D. is Professor of Philosophy and Head of the Philosophy Faculty in the School of Historical, Philosophical, and Religious Studies and senior Sustainability Scholar at Arizona State University (Tempe, AZ, USA). She has worked primarily in philosophy of law and bioethics, and currently, ethics of sustainability focusing on the food system. McGregor has published over 60 chapters and articles.
Mark Christopher Navin, PhD, HEC-C, is Professor and Chair of Philosophy at Oakland University (Rochester, MI, USA). He works primarily in clinical ethics and public health ethics.