Robert Giegengack is Professor Emeritus of Earth & Environmental Science in the School of Arts and Sciences at the University of Pennsylvania and has been on the faculty of the University of Pennsylvania since 1968. He received his BA and PhD in Geology from Yale University (1960, 1968) and his MS in Geology from the University of Colorado (1962). Dr. Giegengack established the undergraduate major in Environmental Studies at Penn in 1972, and has been undergraduate advisor for that major and for the Geology major in the years since. He is also Faculty Director of the Master of Environmental Studies (MES) program, which currently enrolls ~150 students. He has also been Director of Penn’s Summer Course in Geologic Field Methods, based at the facility of the Yellowstone-Bighorn Research Association (YBRA) in Red Lodge, MT. Dr. Giegengack teaches courses in Environmental Analysis, Paleoclimatology, Environmental Geology, and Field Geology. He has also developed a series of Academically Based Community-Service courses in urban environmental public health that focus on the hazard of lead-based paint in residential buildings, teenage smoking, and environmental triggers of asthma attacks. He studies geologic archives that enable paleoclimatologists to reconstruct the history of environmental change, primarily climate change, during the very long period of time (~4.5 billion years) that preceded acquisition, during the last ~200 years, of the instrumental meteorological record. That work provides a useful time perspective on environmental processes currently under way, and an evolutionary perspective on the physical, biologic, and social configuration of the modern world. He has pursued field work on every continent except Australia.