of "Life": A Philosophical perspective Carol Cleland, University of Colorado 2:15-2:30 pm DISCUSSION 2:30-3:00 pm Break 3:00-3:30 pm Life as a Geochemical Process Everett Shock Arizona State University 3:30 -4:00 pm Metabolism and the Early Earth Roger Buick University of Washington 4:00-4:30 The Habitabili