GSC Members


CAROL P. HARDEN (Chair) is a physical geographer whose research has focused on soil erosion, landslides, water resources, the movement of water and sediment through watersheds, and the complexities of human-environmental interactions. Her work has examined the role of human activity as a geomorphic agent in watersheds in the Ecuadorian Andes and the southern Appalachian Mountains. Dr. Harden is professor emerita of the Department of Geography at the University of Tennessee, where she was on the faculty for 28 years and served as department head for 7 years. She is a Fellow of the American Association for the Advancement of Science, a Fulbright research scholar (Ecuador), and was vice president (2008–2009) and president (2009–2010) of the American Association of Geographers. She has been honored with distinguished career awards from the AAG's Southeastern Division and Geomorphology and Mountain Geography Specialty Groups.  She is currently editor-in-chief of the journal Physical Geography and resides in Vermont. She has a B.A. in Environmental Studies/Ecology from Middlebury College and M.A. and Ph.D. degrees in Geography from the University of Colorado.


ANTHONY J. BEBBINGTON (NAS) is the Milton P. and Alice C. Higgins Professor of Environment and     Society and director of the Graduate School of Geography at Clark University. He is also a research associate of the Centro Peruano de Estudios Sociales in Peru and a professorial research fellow at the University of Manchester. He is a member of the National Academy of Sciences, and has held fellowships from the Center for Advanced Studies in the Behavioral Sciences at Stanford University, the Free University and Ibero-American Institute of Berlin, the United Kingdom Economic and Social Research Council, the United Nations Food and Agricultural Organization, the Fulbright Commission, and the Inter-American Foundation. Dr. Bebbington’s work addresses the political ecology of rural change with a particular focus on extractive industries and socio-environmental conflicts, social movements, indigenous organizations, and livelihoods. He has worked throughout South and Central America, though primarily in Peru, Ecuador and Bolivia and, more recently, in El Salvador. He received his B.A. in geography and land economy from University of Cambridge and his M.A. and Ph.D. in geography from Clark University.


Budhendra Bhaduri is a Corporate Research Fellow and the founding director of Urban Dynamics Institute at Oak Ridge National Laboratory.  His research interests and experience include novel implementation of geospatial science and technology in sustainable development research, including population dynamics, urbanization and watershed impacts, energy resource assessment, and disaster management.  He is a Fellow of the American Association for the Advancement of Science (AAAS).  Between 2009-2012, he served on the Mapping Science Committee of the National Academy of Sciences, Geographic Information Science and Applications and on a Strategic Highway Research Program, Expert Task Group of the Transportation Research Board (TRB) of the National Academies.  Dr. Bhaduri is actively involved with academic collaborations and student engagement for research in geospatial science. He is a recipient of the 2017 Carolyn Merry Outstanding Mentor Award from the University Consortium of Geographic Information Science (UCGIS) and the Anderson Medal from the applied geography specialty group of the American Association of Geographers (AAG) in 2018.  He is a founding member of the U.S. Department of Energy’s Geospatial Sciences Steering Committee and a recipient of the Department’s Outstanding Mentor Award for his dedicated service for developing future workforce for the nation.  Dr. Bhaduri received his Ph.D. in Earth & Atmospheric Sciences from Purdue University.  He has a M.S. from Kent State University, and a M.Sc. and a B.Sc. in Geology from University of Calcutta, India.


MARILYN BROWN is a professor in the School of Public Policy at the Georgia Institute of Technology. During her prior career at Oak Ridge National Laboratory (ORNL), she held various leadership positions managing annual research budgets of $50 to $130 million, focused on energy efficiency, renewable energy, electric grid, and energy engineering projects. While at ORNL, she was also an adjunct associate professor in the Department of Geography at the University of Tennessee.  Her research focuses on the design and impact of policies aimed at accelerating the development and deployment of sustainable energy technologies. She has led several energy technology and policy scenario studies and is a national leader in the analysis and interpretation of energy futures in the United States.  She has edited one book and two special journal issues, and she has authored more than 200 publications. Her work has had significant visibility in the policy arena as evidenced by her numerous high-level briefings and testimonies before committees of both the U.S. House of Representatives and the U.S. Senate. Dr. Brown co-founded and chaired the board of directors of the Southeast Energy Efficiency Alliance for several years. She also served on the boards of directors of the American Council for an Energy-Efficient Economy and the Alliance to Save Energy, and she was a member of the National Commission on Energy Policy for many years. She currently serves on the editorial boards of several journals and was a member of the National Academies of Sciences, Engineering, and Medicine’s Board of Energy and Environmental Systems and two Academies’ committees (America’s Energy Future and America’s Climate Choices). Dr. Brown earned her M.A. in resource planning from the University of Massachusetts and her Ph.D. in energy and society from The Ohio State University.


JANET FRANKLIN (NAS) is Distinguished Professor of Biogeography at the University of California, Riverside. Her work addresses the impacts of human-caused landscape change on the environment. She previously held academic positions at Arizona State University, where she was a Regent's Professor, and San Diego State University. In 2014, Dr. Franklin was elected to the National Academy of Sciences her for significant advancement of the understanding of human impacts on ecosystems by developing novel species distribution models, combined with innovative geospatial analysis and extensive field work. Her research has garnered new insights into the impact of fire regimes on ecosystems and the role of early humans in shaping ecological communities. Dr. Franklin and her collaborators are studying methods for predicting species distributions from environmental variables to study the impacts of climate change and land use change on biodiversity; exploring the impacts of anthropogenically altered fire regimes and land use change on flora and fauna in mediterranean-type ecosystems; and understanding the long term impacts of human and natural disturbance on tropical forest island ecosystems in the Pacific and Caribbean. She and her team use research tools such as field surveys, statistical modelling, computer simulation, remote sensing, spatial analysis, and geographic information systems. She received her Ph.D. and M.A. in geography and a B.A. in environmental biology from the University of California, Santa Barbara.


NANCY L. JACKSON is a professor in the Department of Chemistry and Environmental Science at the New Jersey Institute of Technology where she heads the graduate program in environmental policy studies. Her research focuses on coastal processes on beaches and dunes in estuarine and low-wave energy environments. She is currently studying the relationship between beach processes and horseshoe crab reproduction in the Delaware Bay.  In fall 2004, Jackson was awarded the Turin Chair as part of the Fulbright Distinguished Chairs Program. In 2014, she was elected as a fellow of the Geological Society of America.  She serves as an associate editor of Estuaries: An International Journal of Coastal Science and the Journal of Coastal Research.  Dr. Jackson received a B.A. from Clark University, an M.Sc. from Antioch University, and a Ph.D. in Coastal Science from Rutgers University.


MICHAEL JERRETT is an internationally recognized expert in geographic information science for exposure assessment and spatial epidemiology. He is professor and chair of the Department of Environmental Health Sciences in the Fielding School of Public Health at the University of California, Los Angeles. For the past 15 years, Dr. Jerrett has researched how to characterize population exposures to air pollution and built environmental variables, how to understand the social distribution of these exposures among different groups (e.g., poor vs. wealthy), and how to assess the health effects from environmental exposures. He has also studied the contribution of the built and natural environment to physical activity, behavior, and obesity. In 2013, the U.S. Environmental Protection Agency appointed Dr. Jerrett to the Clean Air Scientific Advisory Sub-Committee for Nitrogen Oxides. In 2014, he was named to the Thomson Reuters List of Highly Cited Researchers, indicating he is in the top 1% of all authors in the fields of Environment/Ecology in terms of citation by other researchers.  Dr. Jerrett earned his B.S. in environmental science from Trent University and both an M.A. in political sciences/environmental studies and a Ph.D in geography from the University of Toronto.


GLEN M. MacDONALD , NAS, is the John Muir Memorial Chair of Geography, director of the White Mountain Research Center, and a University of California – Los Angeles Distinguished Professor. He is a former UC Presidential Chair and former director of the UCLA Institute of the Environment and Sustainability. He is the UCLA co-PI for the Department of the Interior’s Southwest Climate Science Center. His research focuses on climate change, its causes, and its impact on the environment and society. He works with observational and other records in North America, Eurasia, and Africa. A particular focus of his research has been water resources and society in western North America and the global semi-arid regions. Dr. MacDonald is known for work on the concept of the ‘Perfect Drought.’ He has also worked extensively on the response of northern treeline and wetlands to climate change and the effects of this on global radiative balance. In recent years he has extended his research to coastal marshes and the effects of climate change and sea level rise. He is the author of over 150 scientific and popular press pieces and an award winning book on biogeography. He has also published op-eds in the Los Angeles Times and San Francisco Chronicle. He speaks widely to the public and policy makers and has provided presentations and testimony to a number of California state agencies and the US Senate Appropriations Committee. Dr. MacDonald is a member of the National Academy of Sciences, a fellow of the American Academy of Arts and Sciences, a fellow of the American Geophysical Union, a Fellow of the American Association for the Advancement of Science, a Guggenheim Fellow, and a Rockefeller Bellagio Resident. He has received the James J. Parsons Distinguished Career Award and the Henry C. Cowles Award for Excellence in Publication from the American Association of Geographers, the University of Helsinki Medal, a Visiting Fellowship and Life Membership at Clare Hall Cambridge, and a Visiting Fellowship at St. Catherine’s College, Oxford. He has also won distinguished teaching awards at McMaster University and UCLA.


WILLIAM D. SOLECKI is a professor and director of Hunter College of the City University of New York (CUNY) Institute for Sustainable Cities.  His research focuses on urban environmental change and urban spatial development. He has served on several U.S. National Research Council committees including the Special Committee on Problems in the Environment (SCOPE).  He currently is a member of the International Geographical Union (IGU) Megacity Study Group and the International Human Dimensions Programme (IHDP) Urbanization and Global Environmental Change Scientific Steering Committee. He also serves as the co-leader of several climate impacts in the greater New York and New Jersey region.  His research is funded by a diverse group of institutions including NASA, the State of New York, New York City, NOAA, HUD, and EPA.  He has been inducted into the Phi Kappa Phi International Honor Society. Dr. Solecki received his B.A. in geography from Columbia University and his M.A. and Ph.D. in geography from Rutgers University.


ANDREW TURNER is the chief technology officer of the Esri R&D Center in Washington, DC, where he develops new methodologies and technology for geospatial web collaboration. In particular, his team works closely with government agencies to provide open public digital infrastructure to enable citizen engagement and improve decision making. Originally an aerospace engineer designing autonomous learning spacecraft control algorithms, Andrew became passionate about making advanced geospatial technology available to everyone for personal analysis and storytelling. He was the CTO of GeoIQ which was acquired by Esri in 2012.  Andrew is a charter member of the Open-Source Geospatial Foundation, as well as the OpenStreetMap foundation, and he is also the co-founder of Crisiscommons, a global community of technology volunteers that support humanitarian assistance in disasters. Andrew is the author of "Introduction to Neogeography" and "Trends in Where2.0."  Andrew received his B.S. in aerospace engineering and computer science from the University of Virginia and his M.S. in aerospace engineering from Virginia Polytechnic Institute and State University.