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Program Director

  • Dr. Williams is a professor of earth system science within Clark’s School of Geography and is director of the environmental sciences program at Clark.  His expertise is in terrestrial ecosystems, global environmental change, and climate change.   He and his team […]

Program Faculty

  • Nathan Ahlgren

    Associate Professor, Biology

    Professor Ahlgren is a marine microbial ecologist. He is interested in understanding how environmental factors and interactions between microbes and viruses shape the evolution, diversity, and structure of microbial communities. Marine microbial communities are extremely diverse and control globally important […]

  • C. Agosta is a low temperature experimental physicist who was originally trained to study the properties of fluids at very low temperatures. His present research interests are lower dimensional superconductors in very high magnetic fields, dc microgrids, and heat transfer […]

  • Dana Bauer

    Assistant Director, George Perkins Marsh Institute

    Research Scientist, Economics

    Dr. Dana Bauer is an interdisciplinary researcher with particular interests in conservation and sustainability. She applies economic and ecological theory towards the assessment of ecosystem services and the analysis of policies and programs that aim to protect them. Her current […]

  • My research takes an integrative approach to studying the evolution and diversification of functional morphological systems. I am particularly interested in how form (phenotype) and function are related, and how these relationships are context-dependent in terms of habitat use and […]

  • Elizabeth Bone

    Associate Teaching Professor, Biology

  • Edward Carr

    Professor, Sustainability and Social Justice

    Edward R. Carr is a geographer and anthropologist whose career and research focus on exploring alternative ways of achieving meaningful and enduring improvements to human well-being. His work provides insights into the ways development and adaptation interventions impact human well-being, […]

  • Rinku Roy Chowdhury completed her bachelor's degree in Computer Science and Environmental Science at Wellesley College, a master's degree in Conservation Ecology and Sustainable Development at the University of Georgia, and a Ph.D. in Geography at Clark University. Before returning […]

  • Prof. Derr received a B.A. from Seattle University in 1972 and a Ph.D. from the University of Notre Dame in 1976. He has been at Clark since that time. He is a research professor with the George Perkins Marsh Institute and with […]

  • Timothy Downs

    Professor, Sustainability and Social Justice

    Tim Downs is a specialist in environmental science and engineering with over 30 years field experience designing and managing collaborative projects in the UK, the United States, Latin America and Africa. His research focus is on how humans change the […]

  • Lyndon Estes

    Associate Professor, Geography

    I am an environmental scientist who investigates the drivers and impacts of agricultural change, with a particular focus on Africa. I conduct my research using new Earth Observation technologies and a range of modeling techniques, and work within inter-disciplinary projects […]

  • Abby Frazier

    Assistant Professor, Geography

    Dr. Abby Frazier is a climatologist who studies the spatiotemporal dynamics and impacts of climate change and climate variability. Her research uses geospatial analysis to integrate diverse datasets, including models and observations, to understand the multi-disciplinary impacts of climate on […]

  • Dr. Karen Frey is a professor of earth system science in the Graduate School of Geography. Her research interests involve the combined use of field measurements, satellite remote sensing, and geospatial analytics to study large-scale linkages between land, atmosphere, ocean, […]

  • Dr. Geoghegan received a B.A. from Queens College, City University of New York in 1987, and an M.S. and Ph.D. from the University of California at Berkeley in 1989 and 1995, respectively. She has been at Clark since 1996. Geoghegan, currently […]

  • David Hibbett

    Professor, Biology

    Andrea B. and Peter D. Klein '64 Distinguished Professor

    David Hibbett is a Professor of Biology at Clark University, Worcester, Massachusetts. USA. He received a B.S. in Botany from the University of Massachusetts, Amherst, and a PhD in Botany from Duke University. He held postdoctoral fellowships at the Tottori […]

  • Chandra Jack

    Assistant Professor, Biology

    My broad research interests are the evolution and ecology of complex biotic interactions between individuals and their subsequent effect on fitness and population structure. It has long been accepted that ecology influences evolution but only recently has is it become […]

  • Robert Johnston

    Professor, Economics

    Director of the George Perkins Marsh Institute

    Dr. Johnston received a B.A. from Williams College in 1990 and a Ph.D. from the University of Rhode Island in 1996. He has been at Clark since 2008. He is Director of the George Perkins Marsh Institute and Professor of […]

  • My research focuses on the effects of climate, disturbances, and land use on mountain forest ecosystems in the U.S. and in Europe. Important recent research themes include: 1) the causes and consequences of forest disturbances such as fires and insect […]

  • Kaitlyn Mathis

    Associate Professor, Biology

    My research uses an integrated approach, combining observational studies, manipulative field experiments, chemical ecology techniques, and lab experiments to examine the dynamics of complex species interactions and how they are shaped by managed systems. Within the last 100 years, most […]

  • Professor James McCarthy earned a B.A. in English and Environmental Studies from Dartmouth College and an M.A. and Ph.D. in Geography from the University of California, Berkeley. Prior to joining the Graduate School of Geography in 2011, he was an […]

  • Professor Erin McCullough is an evolutionary biologist and behavioral ecologist whose research aims to understand patterns of morphological and behavioral diversity. She specializes in studying the evolution of reproductive traits and uses diverse and integrated approaches to explore the evolutionary forces […]

  • Yelena Ogneva-Himmelberger

    Professor, Sustainability and Social Justice

    Professor Yelena Ogneva-Himmelberger joined the faculty in 2006 after several years of teaching GIS and remote sensing at Mount Holyoke College and Tufts University. She received Ph.D. from Clark University, and B.A./M.A. degrees in Geography with distinction from Moscow State […]

  • Robert Gilmore Pontius Jr is a Professor in Clark University’s Graduate School of Geography. Dr. Pontius specializes in Geographic Information Science (GIS) with particular expertise in statistics, simulation modeling, and land change science. He derives quantitative methods that are in […]

  • Javier is an Assistant Professor of Genomics at the Department of Biology of Clark University. His lab is interested in identifying the patterns of genomic evolution of fungal species and populations, especially focused on the evolution, systematics, and genomics of […]

  • Deborah Robertson

    Professor, Biology

    Department Chair, Biology

    My research program investigates the physiological ecology and the evolution of nitrogen metabolism in marine diatoms and other ecologically important groups of marine algae. In many marine environments, nitrogen availability is an important factor regulating primary productivity. By characterizing the […]

  • John Rogan joined the faculty as Assistant Professor in Fall 2003. Dr. Rogan received his Ph.D. (Geography) degree from the joint doctoral program at San Diego State University and the University of California, Santa Barbara, where he was funded by […]

  • Morgan Ruelle

    Associate Professor, Sustainability and Social Justice

    Morgan Ruelle is an Assistant Professor in the Environmental Science and Policy program in the Department of International Development, Community and Environment. He is interested in how biological and cultural diversity enable communities to anticipate and adapt to change. His […]

  • Florencia Sangermano is a geographer specialized in geographic information science (GIS), remote sensing, landscape ecology, and ecoacoustics applied to conservation. Her research focuses on climate and land cover change impacts on ecosystems and biodiversity through the lens of geospatial analysis, […]

  • Dr. Williams is a professor of earth system science within Clark’s School of Geography and is director of the environmental sciences program at Clark.  His expertise is in terrestrial ecosystems, global environmental change, and climate change.   He and his team […]

Halina Brown, Ph.D.
Professor, Department of International Development, Community, and Environment

Socio-technical system innovation in sustainability transition, use of information disclosure as a regulatory instrument for sustainability, corporate accountability and governance, social learning and institutional theory, comparative international environmental policy, environmental public health policy, environmental toxicology, management of risks from toxic substances

Tel: 1-508-793-7172
Email: hbrown@clarku.edu