Courses are taught by Columbia University faculty and by practitioners in the field.

Associated Faculty

Click to read an associated faculty member's biography below.


Scott Barrett

Lenfest-Earth Institute Professor of Natural Resource Economics,
Department of International and Public Affairs

Scott Barrett is the first Lenfest-Earth Institute Professor of Natural Resource Economics. Prior to joining Columbia in the fall of 2009, Professor Barrett served on the faculty of Johns Hopkins University's Paul H. Nitze School of Advanced International Studies.

His research focuses on institutional remedies to transnational challenges, including global climate change and the control of infectious diseases. Barrett is the author of Environment and Statecraft: The Strategy of Environmental Treaty-Making, published by Oxford University Press in paperback in 2005. His most recent book, Why Cooperate? The Incentive to Supply Global Public Goods, was published by Oxford University Press in September 2007.

He has been an advisor to many organizations, including the European Commission, the International Task Force on Global Public Goods, the OECD, the World Bank, and the United Nations. He was a lead author of the second assessment report by the Intergovernmental Panel on Climate Change and was previously a member of the Academic Panel of Environmental Economists to the UK's Department of Environment.

Prof. Barrett taught at London Business School for over a decade before teaching at Johns Hopkins University and was Distinguished Visiting Fellow at the Yale University Center for the Study of Globalization in 2006. He received his Ph.D. in economics from the London School of Economics.

Wallace S. Broecker

Newberry Professor, Department of Earth and Environmental Sciences
B.A., Columbia, 1953; M.A., 1954; Ph.D., 1957.

Broecker's research interests center on climate systems, especially as they involve the role of oceans in climate change. He places strong emphasis on utilizing isotopes in investigating physical mixing and chemical cycling in the ocean and the climate history as recorded in marine sediments.

Broecker's publications include: The Glacial World According to Wally (1995); "Chaotic climate," Scientific American (1995); Greenhouse Puzzles (1993, with T. Peng); The Last Deglaciation: Absolute and Radiocarbon Chronologies (1992, edited with E. Bard); "The great ocean conveyor," Oceanography (1991); "What drives glacial cycles?" Scientific American (1990, with G.H. Denton); The Carbon Cycle and Atmospheric CO2: Natural Variations Archean to Present (1985, edited with E.T. Sundquist); and Tracers in the Sea (1982).

Mark A. Cane

G. Unger Vetlesen Professor of Earth and Climate Sciences and Professor of Applied Physics and Applied Mathematics,
Department of Earth and Environmental Sciences
B.A., Harvard, 1965; M.A., 1966; Ph.D., Massachusetts Institute of Technology, 1975.

In 1992, Cane received the Sverdrup Gold Medal of the American Meteorological Society. Cane built the first prediction models of El Niño (with S.E. Zebiak). His research interests include the building of numerical ocean models, equatorial dynamics, El Niño, air-sea interactions and global climate issues. Questions of particular interest include: Why are there deserts? Can we predict drought in Northeast Brazil? How did the deep ocean change during the last glacial maximum? How will it change in the next 100 years? Does it matter for the creatures at the earth's surface? Can we make a numerical ocean model that is consistent with data? Can we observe the surface winds from space - or any other way?

Cane's publications include "Experimental forecasts of El Niño," Nature (1968, with S.E. Zebiak and S. Dolan); "Tropical Pacific ENSO models: ENSO as a mode of the coupled system," in Climate System Modeling (1993, K. Trenberth, ed.); and "Forecasting Maize Yield in Zimbabwe with Eastern Equatorial Pacific Sea Surface Temperature," Nature (1994, with G. Eshel, R.W. Buckland).

Robert Chen, Ex Officio

Director, Center for International Earth Science Information Network

Robert S. Chen is the director of CIESIN and a senior research scientist. He served as CIESIN’s deputy director from July 1998 to April 2006 and as CIESIN's interim director from May 2006 to January 2007. Dr. Chen is also the manager and co-principal investigator of the Socioeconomic Data and Applications Center (SEDAC), a data center in the NASA Earth Observing System Data and Information System. He is currently secretary-general of the Committee on Data for Science and Technology (CODATA) of the International Council for Science (ICSU). In addition, he is an ex officio member of both the U.S. National Committee for CODATA of the U.S. National Research Council and the Task Group on Data and Scenario Support for Impacts and Climate Analysis (TGICA) of the Intergovernmental Panel on Climate Change (IPCC). In the past, he served as chair of the NASA Distributed Active Archive Center (DAAC) Alliance and as a member of the Executive Committee of the NASA Earth Science Information Partner (ESIP) Federation.

At Columbia University, Dr. Chen is a member of the Working Group on Science & Technology Recruiting to Increase Diversity (STRIDE), part of the Earth Institute (EI) ADVANCE Program. He is active in several EI cross-cutting initiatives such as the Center for Hazards and Risk Research (CHRR) and a new CyberInfrastructure for the Earth Institute (CI4EI) activity. In addition to his role as SEDAC Manager, Dr. Chen has managed several cooperative agreements with the U.S. Federal Geographic Data Committee (FGDC) on spatial data management and a project on managing geospatial electronic records with the National Historical Publications and Records Commission (NHPRC). He co-led a major collaborative project on the assessment of global natural disaster risks with the CHRR, the World Bank, and other partners. Dr. Chen also coordinated CIESIN’s spatial analysis and mapping support to the Millennium Development Project led by EI Director Jeffrey Sachs, and he has overseen other projects on poverty mapping, sustainability indicators, and public health applications of Earth science data. With the National Snow and Ice Data Center (NSIDC) and the Oak Ridge National Laboratory (ORNL), he is currently co-lead of a project on Discovery, Access, and Delivery of Data for the International Polar Year (DADDI).

Prior to joining CIESIN, Dr. Chen served on the faculty of the World Hunger Program at Brown University. He has held research fellowships at the National Center for Atmospheric Research in Boulder, Colorado, the International Institute for Applied Systems Analysis in Laxenburg, Austria, and the National Research Council in Washington, DC. He served on the Steering Committee of the U.S. National Oceanic and Atmospheric Administration (NOAA) Postdoctoral Program in Climate and Global Change and on the Committee on Standards for Geographic Data of the Association of American Geographers. He received his PhD in Geography from the University of North Carolina at Chapel Hill and holds Masters and Bachelors degrees from the Massachusetts Institute of Technology.

Joel E. Cohen

Director, Laboratory of Populations
Professor, Columbia University and The Rockefeller University
Ph.D., Applied Mathematics, Harvard University, 1970; Dr. P.H., Population Sciences and Tropical Public Health, Harvard University, 1973.

Cohen's research centers on populations, especially on demography, ecology, population genetics, epidemiology and social organization of human and non-human populations, and related mathematics. His current research focuses on potential control of Changas disease in Argentina. His work includes mathematical modeling of transmission risk to humans, leading toward improvement in field intervention and disease control.

His additional research includes analysis of the food web associated with rice fields in the Philippines, with interest in larger questions about food web structure and improvements in biological control. His recent mathematical work, on relative entropy, nonnegative stochastic matrices, and nonlinear mappings, directly connects with issues raised by his work with populations.

Cohen's publications include Comparisons of Stochastic Matrices, with Applications in Information Theory, Statistics, Economics and Population Sciences (1998, with J.H.B. Kemperman and Gh. Zbaganu); How Many People Can the Earth Support? (1995); Absolute Zero Gravity (1992, with B. Devine); Community Food Webs: Data and Theory (1990, with F. Briand and C.M. Newman); and Food Webs and Niche Space (1978).

Peter Coleman

Associate Professor of Psychology and Education, Department of Social-Organizational Psychology, Teachers College

Dr. Peter T. Coleman is currently Associate Professor of Psychology and Education at Teachers College, Columbia University and teaches courses in Conflict Resolution, Social Psychology, and Social Science Research. Dr. Coleman is Director of the International Center for Cooperation and Conflict Resolution (ICCCR) at Teachers College, Columbia University. He has conducted research on social entitivity processes (ingroup/outgroup formation), the mediation of inter-ethnic conflict, intractable conflict, complexity, and on the conditions and processes which foster the constructive use of social power. In 2003, he became the first recipient of the Early Career Award from the American Psychological Association, Division 48: Society for the Study of Peace, Conflict, and Violence. Dr. Coleman co-edited The Handbook of Conflict Resolution: Theory and Practice (2000; 2nd edition in press), and has also authored over forty journal articles and chapters. He holds a Ph.D. and M.Phil. in Social/Organizational Psychology from Teachers College, Columbia University and a BA in Communications from The University of Iowa.

Patricia Culligan

Professor, Department of Civil Engineering and Engineering Mechanics

Dr. Patricia Culligan is a Professor of civil engineering and engineering mechanics at Columbia University. She also chairs the diversity initiatives committee at Columbia's School of Engineering and Applied Sciences. Her research focuses on applying geoengineering principles to the solution of problems related to subsurface contamination and remediation. Her particular interests include multiphase transport behavior in soils and fractured rock, including nonaqueous phase liquid behavior, colloid transport and transport in unsaturated media. She also has interest and experience in the design of land-based disposal sites for waste materials. Her current research focuses on experimental and theoretical modeling of problems involving subsurface non-aqueous phase liquid (NAPL) transport and remediation, colloid transport in porous media, unsaturated flows and alternative strategies for urban water and wastewater management. Dr. Culligan is the author or co-author of over 100 technical articles, including two books, three book chapters, and over 60 refereed journal and conference proceedings. Dr. Culligan has received numerous awards including the Arthur C. Smith Award for Undergraduate Service (1999) and the National Science Foundation CAREER Award (1999). She received a B.Sc. Hons. in Civil Engineering in 1982 from the University of Leeds and a M.Phil. in 1985 and a Ph.D. in 1989 from Cambridge University.

Richard J. Deckelbaum

Director, Institute of Human Nutrition
Professor of Pediatrics and of Epidemiology, and Robert R. Williams Professor Nutrition, Columbia University Medical Center

Dr. Deckelbaum received his B.Sc. in 1963, and his M.D. and C.M. in 1967 from McGill University. Dr. Deckelbaum's research interests concern human plasma lipoproteins, and the cellular effects of dietary fats and free fatty acids. His research has been supported by the National Heart, Lung and Blood Institute, the National Institute of Allergy and Infectious Disease, the US Agency for International Development, and private industry.

His work has contributed to better understanding of mechanisms whereby human lipoproteins are structurally remodeled in the plasma compartment, factors modulating receptor-lipoprotein interactions, and nutrient-gene interactions. He has also led international NIH and USAID programs integrating nutrition with risk factors of cardiovascular disease in children of different genetic backgrounds, as well as the molecular biology of intestinal parasites with clinical and epidemiological manifestations of infection, with emphasis on chronic diarrhea and malnutrition. Overall, an important objective of Dr. Deckelbaum's program is to develop investigators who can translate basic nutritional questions into basic lipid and cellular biology. His research complements a professional interest in global health, which grew out of work in the Middle East and Africa.

Ruth Defries

Denning Family Chair of Sustainable Development
Professor, Department of Ecology, Evolution, and Environmental Biology

Ruth DeFries examines human transformation of the landscape and its consequences for climate, biogeochemical cycling, biodiversity, and other ecosystem services that make our planet habitable. The work is based on the premise that land use change involves tradeoffs between human necessities such as food and unintended environmental consequences such as greenhouse gas emissions and habitat loss. A particular focus is tropical deforestation and its impacts on atmospheric carbon emissions. DeFries examines land use changes over broad scales through the lens of satellite observations. She is actively involved in linking scientific information into policy decisions.

Previously, Dr. DeFries was professor in the Geography Department at the University of Maryland, staff at the National Research Council with the Committee on Global Change and taught at the Indian Institute of Technology in Bombay. She was elected to the U.S. National Academy of Sciences in 2006 and the American Association for the Advancement of Science in 2008, is a fellow of the Aldo Leopold Leadership Program, and received a MacArthur Foundation “genius” award in 2007. Dr. DeFries received her Ph.D. in 1980 from the Department of Geography and Environmental Engineering at Johns Hopkins University. She received her B.A. in Earth Science, summa cum laude, in 1976 from Washington University in St. Louis, MO.

Peter B. deMenocal

Associate Professor, Department of Earth and Environmental Sciences

Dr. deMenocal received his B.S. in 1982 from St. Lawrence University, his M.S. in 1986 from the University of Rhode Island Graduate School of Oceanography, and his Ph.D. in 1991 from Columbia University. Dr. deMenocal is a paleoceanographer/marine geologist who uses geochemical analyses of marine sediments to reconstruct past changes in ocean circulation and terrestrial climate. His research group primarily uses stable isotopic and trace metal (Mg/Ca) analyses of foraminifera and terrigenous sediment geochemistry to investigate how and why climates have changed in the past. Current research projects include developing high-resolution records of Holocene changes in North Atlantic surface and deep ocean circulation and understanding the Holocene history of the northwest African monsoonal system.

Michael Gerrard

Professor of Professional Practice, Columbia Law School
Director, Center for Climate Change Law, Columbia Law School

Michael B. Gerrard is one of the world's most distinguished environmental lawyers, the director of the Center for Climate Change Law (CCCL) at Columbia University, and a member of the faculties of the Columbia University School of Law and the Earth Institute. Until late 2008, he headed the New York office of Arnold & Porter LLP and its environmental practice, and he is currently senior counsel to the firm. He has practiced environmental law in New York for three decades, trying many cases and arguing appeals on the federal and state levels. He has also participated in numerous administrative tribunals and advised parties on environmental aspects of many transactions and development projects.

Through CCCL, which he launched in January 2009, Gerrard helps train the next generation of leaders in climate change law. With the aim of influencing key decision makers, bringing the latest scientific knowledge into the regulatory system, and developing innovative legal tools to combat climate change and promote sustainable development practices, CCCL is collaborating closely with the Earth Institute and the United Nations.

Gerrard's contributions to legal scholarship have been significant - he has written or edited seven books to date. His 2007 edited volume, Global Climate Change and U.S. Law (American Bar Association), is considered to be one of the leading texts in the field. He is also editor and author of a number of other publications in environmental law, including the 12-volume Environmental Law Practice Guide, which was awarded the "Best Law Book of the Year" by the Association of American Publishers - a distinction that he has earned twice. Legal Media Group, a London-based legal publisher, recently ranked Gerrard as the leading environmental lawyer in the world, based on 4,500 interviews.

He received his J.D. as a Root-Tilden Scholar at New York University School of Law and his B.A. from Columbia University, where both of his parents and both of his children have received degrees.

Steven L. Goldstein

Chair and Professor, Department of Earth and Environmental Sciences

Professor Steven Goldstein is currently department chair and professor in the Earth and Environmental Science Department at Columbia. He has lectures for the Columbia College Core Curriculum course "Frontiers of Science" and currently co-teaches a course in DEES called The Solid Earth. In addition to his teaching, Professor Goldstein is also the lead principal investigator of the Isotope Geochemistry Lab at Lamont Doherty Earth Science Observatory. Current projects range from studies of magmatic processes to chemical oceanography, from the history of the early Earth to recent climate changes. Most studies utilize the products of natural radioactive decay in rocks and waters, as process tracers and to determine absolute ages. Routinely used isotopic techniques include Rb-Sr, Sm-Nd, Th-U-Pb, Lu-Hf, Li isotopes, and intermediate products of U-decay.

In addition to his research and work at Columbia, he has also served on several editorial boards of respected publications including: Chemical Geology, Earth and Planetary Science Letters and the Journal of Geophysics Research-Solid Earth. Currently, Professor Goldstein is editor-in-chief of Chemical Geology. He also serves on several committees including: Harry H. Hess Medal Committee, American Geophysical Union, GERM (Geochemical Earth Reference Model), National Terrestrial Sample Repository and many more.

Prior to his work at Columbia, Professor Steven Goldstein was a staff scientist at the Max-Planck Institute fur Chemie, Department of Geochemistry in Mainz, Germany from 1985-1996. He also held the position of research assistant in the Department of Earth Sciences at the University of Cambridge in England from 1984-1985. Dr. Goldstein received his Ph.D. from Columbia University in 1986, his M.A. from Harvard University in 1978 and his B.A. from Columbia College in 1976.

Joseph Graziano

Professor, Department of Pharmacology
Associate Dean of Research and Professor, Department of Environmental Health Sciences
B.S., Long Island University, 1967; Ph.D., Rutgers, 1971.

Dr. Graziano's research interests include treatment of childhood lead poisoning, environmental lead exposure, pregnancy outcome and infant development, metal metabolism and neurodegenerative diseases, including genetic and environmentally induced alterations in essential mineral metabolism within neurodegenerative diseases.

His publications include "Independent effects of lead exposure and iron deficiency anemia on developmental outcome at age 2 years," J. Pediatr. (1992, with G. Wasserman and P. Factor-Litvak, et al.); and "Lead exposure and intelligence in 7-year-old children: The Yugoslavia Prospective Study," Environ. Health Perspect. (1997, with G. Wasserman and P Factor-Litvak, et al.).

Geoffrey M. Heal

Director, Center on Globalization and Sustainable Development
Paul Garrett Professor of Public Policy and Business Responsibility, School of Business

Geoffrey Heal is the Garrett Professor of Public Policy and Corporate Responsibility, Professor of Economics and Finance at Columbia University's Graduate School of Business, and the Director of the Earth Institute's Center for Economy, Environment, and Society. He has also served as Vice Dean of the Business School and managed the Executive MBA Program.

Heal studied Physics and Economics at Cambridge, where he obtained a First Class Honors degree and a Doctorate, and then taught at Cambridge, Stanford, Yale and Princeton, and held a Fulbright Professorship at the University of Sienna. He has acted as Managing Editor of the Review of Economic Studies and has acted on the Editorial Boards of many other journals. In the 1970s he founded a London-based consulting firm, and in the 1980s a firm providing systems for telecommunications and data processing to the international securities business.

Heal's research fields include the management of risks by financial markets, and especially the securitization of catastrophic risks and analysis of the systemic risks associated with the growth of derivative markets. He has worked more generally on the application of mathematical modeling techniques in economic theory. As an extension of this research he has been involved in the design of new financial instruments and acts as an advisor to financial institutions and other corporations. Another major research interest is the interaction between society and its natural resource base. He has been working to formalize and operationalize the concept of sustainability and develop an interdisciplinary group of social and biological scientists committed to research on the interface between the biological and social sciences.

Heal is a member of the Pew Oceans Commission (, a Director of the Union of Concerned Scientists ( and a Fellow of the Econometric Society. He has advised the International Brotherhood of Teamsters and the United Mineworkers of America, and used to work as Advisor to the secretary-general of OPEC.

Patrick L. Kinney

Associate Professor of Clinical Public Health, Department of Environmental Health Sciences

Patrick Kinney is an Associate Professor at the Joseph A. Mailman School of Public Health at Columbia University. Kinney received his doctorate at the Harvard School of Public Health, where he examined the effects of ozone air pollution on lung function in children as part of the Harvard Six Cities Air Pollution and Health Study. He has carried out numerous studies examining the human health effects of air pollution, including studies of the effects of ozone and/or particulate matter on lung health and on daily mortality in large cities.

At Columbia, Kinney teaches and carries out research in air pollution epidemiology, with a strong interest in transportation-related pollutants and asthma. His recent research has focused on characterizing levels and determinants of indoor, outdoor, and personal exposures to air pollution in the underprivileged neighborhoods of NYC, including studies of indoor allergens, diesel vehicle emissions, volatile organic compounds, PAHs, and other air toxins.

In 2001, Kinney established a new research program to develop and apply integrated models for assessing the human health impacts of climate change. He directs the New York Climate and Health Project, which is examining possible increases health impacts related to heat stress and air pollution in the coming century due to changing climate and land use in the NYC metropolitan area.

Klaus S. Lackner

Ewing-Worzel Professor of Geophysics, Department of Earth and Environmental Engineering
Director, Lenfest Center for Sustainable Energy

Klaus S. Lackner joined the faculty of Columbia University in 2001, where he is now the Ewing-Worzel Professor of Geophysics in the Department of Earth and Environmental Engineering. He received his Ph.D. in 1978 in theoretical physics from the University of Heidelberg, Germany. He held postdoctoral positions at the California Institute of Technology and the Stanford Linear Accelerator Center before joining Los Alamos National Laboratory in 1983. Since then, he has been a scientist in the Theoretical Division and has held several management positions among them Acting Associate Laboratory Director for Strategic and Supporting Research, which represents roughly a third of Los Alamos National Laboratory.

Klaus Lackner's scientific career started in the phenomenology of weakly interacting particles. Later searching for quarks, he and George Zweig developed the chemistry of atoms with fractional nuclear charge. He is still participating in matter searches for particles with a non-integer charge in an experiment conducted at Stanford by Martin Perl and his group. After joining Los Alamos National Laboratory, Klaus Lackner became involved in hydrodynamic work and fusion related research.

In recent years, he has published on the behavior of high explosives, novel approaches to inertial confinement fusion, and numerical algorithms. His interest in self-replicating machine systems has been recognized by Discover magazine as one of seven ideas that could change the world. Presently he is developing innovative approaches to energy issues of the future. He has been instrumental in forming ZECA, the Zero Emission Coal Alliance, which is an industry-led effort to develop coal power with zero emissions to the atmosphere. His recent work is on environmentally acceptable technologies for the use of fossil fuels.

Upmanu Lall

Alan and Carol Silberstein Professor of Engineering, Departments of Earth and Environmental Engineering, and Civil Engineering and Engineering Mechanics, Fu Foundation School of Engineering and Applied Science

Professor Lall received his B.S. in 1977 from the Indian Institute of Technology and both his M.S. (1980) and Ph.D. (1981) in Civil Engineering from the University of Texas. Dr. Upmanu Lall's principal areas of expertise are statistical and numerical modeling of hydrologic and climatic systems and water resource systems planning and management. He has over 25 years of experience as a hydrologist. He has been the principal investigator on a number of research projects funded by the U.S.G.S., the NSF, the U.S.A.F., N.O.A.A., U.S.B.R., D.O.E. and State of Utah and Florida agencies. These projects have covered water quantity and quality and energy resource management, flood analysis, groundwater modeling and subsurface characterization, climate modeling and the development of statistical and mathematical modeling methods. He has been involved as a consultant with specialization in groundwater flow and contaminant transport modeling covering mining operations, streamflow modeling and water balance, risk and environmental impact assessment, site hydrologic evaluation and as a reviewer and as an expert on a number of other hydrologic problems. He has also taught over 20 distinct University courses.


Professor Upmanu Lall was the first recipient of the endowed professorships, Alan and Carol Silberstein Chair, established by Earth and Environmental Engineering (EEE) alum Alan Silberstein in spring 2005. Professor Lall served as EEE department chair from 2003 to 2006.

Robert Lieberman, Ex Officio

Associate Professor and Chair, Department of International and Public Affairs
Associate Professor, Department of Political Science

Robert Lieberman is an assistant professor of political science and public affairs at Columbia University. Currently, his research interests are in American political development, race and politics, and social welfare policy and the welfare state. Lieberman is the author of Shifting the Color Line: Race and the American Welfare State and has edited a volume on race in American politics. He has also written several articles that have appeared in the American Political Science Review, Political Research Quarterly, and Social Science History, such as "Race, Institutions, and the Administration of Welfare," "Social Construction," and "Looking Inward, Looking Outward: The Politics of State Welfare Innovation Under Devolution."

Lieberman's recent works include Race, State, and Policy: American Race Politics in Comparative Perspective (Princeton 2005); "Diversity in U.S. Social Insurance: A Historical Overview," in Strengthening Community: Social Insurance in a Diverse America, edited by Kathleen Buto, Martha Priddy Patterson, William E. Spriggs, and Maya Rockeymoore (National Academy of Social Insurance, 2004); and "Race and the Limits of Solidarity: American Welfare State Development in Comparative Perspective," in Race and the Politics of Welfare Reform, edited by Sanford F. Schram, Joe Soss, and Richard C. Fording (University of Michigan 2003).

Lieberman holds a BA from Yale University as well as an MA and a PhD from Harvard University. He has received fellowships from the National Science Foundation and the Mellon Foundation, and has been a visiting fellow at the Center of Domestic and Comparative Policy Studies at Princeton University. In addition, he has been the recipient of the American Political Science Association's Leonard D. White Award, the Social Science History Association's President's Book Award, the Harvard University Press's Thomas J. Wilson Prize, and Columbia University's Lionel Trilling Award.

Edward Lloyd

Evan M. Frankel Clinical Professor of Environmental Law, School of Law
Director, Environmental Law Clinic, School of Law

Edward Lloyd is the Evan M. Frankel Clinical Professor of Environmental Law and Director of the Environmental Law Clinic at Columbia Law School. Lloyd received his B.A. in Chemistry from Princeton in 1970 and his J.D. from the University of Wisconsin in 1973. From there, he served as staff attorney and executive director of the New Jersey Public Interest Research Group from 1974-83. Since 1983, he has served as general counsel to the New Jersey Public Interest Research Group. Lloyd is the founding director of the Rutgers University Law School Environmental Law Clinic which he ran from 1985-2000.

As a professor, Lloyd has lectured on environmental legal issues at Judicial College for New Jersey judges, on citizen suit litigation at the Practicing Law Institute and ALI/ABA, and on numerous environmental courses for the practicing bar at the New Jersey Institute for Legal Education. Lloyd is co-founder and co-director of the Eastern Environmental Law Center. He is a member of the New Jersey Pinelands Commission, 2002-present, and of the Litigation Review Committee of Environmental Defense, 1991-present. He served as member of the New Jersey Supreme Court Committee on Environmental Litigation, as a conferee at the Governor's Conference on Electricity Policy, Planning and Regulation, and as chairman of the board of directors for the New Jersey Environmental Voters' Alliance, 1983-87. Lloyd has testified before the U.S. Senate and House of Representatives committees on environmental enforcement.

Vijay Modi

Professor, Department of Mechanical Engineering

After receiving his PhD from Cornell University in 1984, Professor Modi pursued Post-doctorate research at MIT 1984-1986. Modi has taught at Columbia since the mid-1980s. His expertise is in the fields of Energy sources and conversion, heat/mass transfer and fluid mechanics. His current areas of research interest are related to: energy infrastructure, CO2 sequestration, fuel cells, distributed sensing/control of flow and heat transfer. He has authored or co-authored numerous journal papers, and served as the principal or co-principal of a number of research grants from government and industry.

John C. Mutter

Professor, Department of Earth and Environmental Sciences

John Mutter is Deputy Director of the Earth Institute, and a Professor in the Department of Earth and Environmental Sciences. He was born in Melbourne, Australia and is a permanent resident of the USA. He received a B.Sc. in Physics and Pure Mathematics from the University of Melbourne (Australia), an M.Sc. in Geophysics from the University of Sydney (Australia), and a Ph.D. in Marine Geophysics from Columbia University (New York). From 1970-80, Professor Mutter served as a Geophysicist with the Bureau of Mineral Resources, Canberra, ACT, Australia. From 1980 on, he has been at Columbia University and Lamont-Doherty Earth Observatory, serving in research, teaching and administrative positions.

Mutter's basic research interests include marine seismology and tectonics, the study of physical mechanisms and processes associated with sea floor spreading, continental extension and the development of passive continental margins. More recently his interests include complex system dynamics, the predictability of earth systems, and the role of natural sciences in sustainable development. Mutter has authored or co-authored more than 70 articles in scientific journals and many popular articles. His fieldwork includes over 30 cruises aboard Lamont's research vessels and others in all parts of the world's oceans.

Shahid Naeem

Professor and Chair, Department of Ecology, Evolution, and Environmental Biology
Ph.D., Zoology, University of California, Berkley, 1989

Naeem studies the ecological and environmental consequences of biodiversity loss and is interested in how changes in the distribution and abundance of plants, animals, and microbes affect ecosystem functioning and services.

This work has demonstrated how the loss of species from ecosystems affect their ability to resist invasion by other species, affect production and nutrient cycling, and affect the reliability and stability of ecosystems. His theoretical work examines how mathematical engineering reliability models can be used to understand the effects of biodiversity loss, global change, management, and environmental degradation on ecosystem reliability.

His current fieldwork is concerned with how extrinsic factors, such as soil fertility and disturbance interact with plant biodiversity to regulate the spread of invasive plant species in old fields at the Cedar Creek Long Term Ecological Research in Minnesota; he plans to expand this work to Black Rock Forest here in New York.

Naeem also coordinates a group effort to predict the local, regional, and global impacts of biodiversity loss across a wide variety of ecosystems, and he is actively involved in bringing the science of biodiversity and ecosystem functioning to conservation, restoration, and policy development.

Stephanie L. Pfirman

Professor and Chair, Department of Environmental Science, Barnard College

Stephanie Pfirman is Professor and Chair of Environmental Science at Barnard College. She has a Ph.D. from the Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program in Oceanography and Oceanographic Engineering, Department of Marine Geology and Geophysics, and a B.A. from Colgate University's Department of Geology. Pfirman came to Barnard in 1993 from Environmental Defense Fund, where she was co-developer of the award winning exhibition "Global Warming: Understanding the Forecast," developed jointly with the American Museum of Natural History and now housed at Biosphere 2.

Pfirman’s prior positions include: research scientist and coordinator of Arctic programs for GEOMAR, Research Center for Marine Geosciences, University of Kiel, Germany; staff scientist for the U.S. House of Representatives, Committee on Science, Subcommittee on Environment; and oceanographer with the U.S. Geological Survey in Woods Hole, Massachusetts. She is involved in research on environmental changes in the Arctic as well as undergraduate education and public outreach. Her recent papers focus on the trajectory and origin of Arctic sea ice, contaminant risks in the Arctic marine environment, and the use of digital data in Earth Science instruction. At the National Science Foundation, she has chaired the Office Advisory Committee to the Office of Polar Programs and now chairs the Advisory Committee on Environmental Research and Education. She was a member of U.S. delegations to the Arctic Monitoring and Assessment Programme, and Key National Expert representing the U.S. in preparation of the State of the Arctic Environment Assessment. In 1994 and 1995 she served on an advisory panel to the Russian Nuclear Contaminant Assessment of the US Congress's Office of Technology Assessment.

Richard Plunz

Professor, Graduate School of Architecture, Planning and Preservation
Director, Urban Design Lab, The Earth Institute

Richard Plunz has taught at Rensselaer and the Pennsylvania State University, and has held visiting positions at the Katholieke Universiteit Leuven and the Politecnico di Torino. He served as Chairman of the Division of Architecture at Columbia (1977-1980) and has been Director of the Urban Design Program since 1992. He has conducted long-term research on architecture and urbanism in Italy and Turkey as well as the United States and he has received support from numerous sources including the Aga Khan Program for Islamic Architecture, the New York State Council on the Arts, the National Endowment for the Arts, the National Endowment for the Humanities, and the J. M. Kaplan Fund. He received the Andrew J. Thomas Award from the American Institute of Architects for his work in housing (1991).

His projects and articles have been widely published. Among his books are Housing Form and Public Policy in the United States (1980); Design and the Public Good. Selected Writings, 1930-1980, by Serge Chermayeff (1982); A History of Housing in New York City. Dwelling Type and Social Change in the American Metropolis (1990); Two Adirondack Hamlets in History. Keene and Keene Valley (1999); The Urban Lifeworld (2001); After Shopping (2003). Professor Plunz received his BS in 1965, his Bachelors in Architecture in 1966, and his Master of Architecture in 1967 from Rensselaer Polytechnic Institute.

Robert Pollack

Professor, Department of Biological Sciences, Columbia University
Director, Center for the Study of Science and Religion, The Earth Institute

Robert Pollack has been a professor in the Department of Biological Sciences at Columbia University since 1978, director of the Earth Institute's Center for the Study of Science and Religion (CSSR) since 1999, and a member of the first cadre of the Earth Institute Faculty. He is also a lecturer at the Center for Psychoanalytic Training and Research (since 1998), an adjunct professor for Science and Religion at Union Theological Seminary (since 2002), a member of the New York Theological Seminary (since 2008), and an adjunct professor of religion (since 2002). Pollack was the dean of Columbia College from 1982 to 1989, received the Alexander Hamilton Medal from Columbia University and the Gershom Mendel Seixas Award from the Columbia/Barnard Hillel, and has held a Guggenheim Fellowship.

In the fall of 2009 Pollack became the director of the Biology Department's independent research course, C3500. Since 2006, he has been a member of the teaching faculty of the Columbia College Core course, Frontiers of Science, teaching two sections of the seminar in the fall semester, as well as presenting three plenary lectures on the emergence of information, life and consciousness. He also teaches a four-day intensive course-DNA, Evolution, and the Soul-at Union Theological Seminary. Since 2009, he has been one of four faculty members teaching the core course Human Identity.

Pollack has authored more than one hundred research papers on the oncogenic phenotype of mammalian cells in culture. In addition, he has written many opinion pieces and reviews on aspects of molecular biology, medical ethics and science education; and he has edited two books on these matters. In 1994 Pollack chose to stop his laboratory work and focus on the junction of science and other intellectual and emotional domains-religion, in particular. He has authored three books on the subject: Signs of Life: the Language and Meanings of DNA (1994), which won the Lionel Trilling Award and has been translated into six languages; The Missing Moment: How the Unconscious Shapes Modern Science (1999); and The Faith of Biology and the Biology of Faith: Order, Meaning and Free Will in Modern Science (2000). This work also led to the establishment of the Center for the Study of Science and Religion in 1999.

Pollack serves on the boards of the Columbia/Barnard Hillel and Congregation Ramath Orah. He is a fellow of the American Association for the Advancement of Science (AAAS) and a member of the Century Association (since 1997). His connection to Columbia began over five decades ago, when he received his bachelor's degree in physics from Columbia College in 1961. He went on to receive his Ph.D. in biology from Brandeis University.

Kenneth Prewitt

Carnegie Professor of Public Affairs, School of International and Public Affairs
B.A., Southern Methodist University, 1958; M.A., Washington University, 1959, Harvard Divinity School, 1960, as a Danforth fellow; Ph.D., in political science, Stanford University, 1963.

Kenneth Prewitt is the Carnegie Professor of Public Affairs at the School of International and Public Affairs at Columbia University. He has taught at the University of Chicago (1965 82) as an assistant, associate, and full professor. He has also taught at Stanford University, Washington University, the University of Nairobi, and Makerere University (Uganda) and was the dean of the Graduate Faculty at the New School University (2001 2002).

Prewitt has had a long professional career outside the classroom. Previous positions include director of the United States Census Bureau (1998 2001), director of the National Opinion Research Center, president of the Social Science Research Council, and senior vice president of the Rockefeller Foundation. He is a fellow of the American Academy of Arts and Sciences, the American Academy of Political and Social Science, the American Association for the Advancement of Science, the Center for the Advanced Study in the Behavioral Sciences, the Russell-Sage Foundation, and member of other professional associations, including the Council on Foreign Relations. Among his awards are a Guggenheim Fellowship, honorary degrees from Carnegie Mellon and Southern Methodist University, a Distinguished Service Award from the New School for Social Research, various awards associated with his directorship of the Census Bureau, and in 1990 he was awarded the Officer's Cross of the Order of Merit from the Federal Republic of Germany.

Prewitt's publications include Politics and Science in Census Taking (2003), Introduction to American Government (6th edition, 1991), and "The U. S. Decennial Census: Political Questions, Scientific Answers" in the Population and Development Review. He has authored and coauthored a dozen books and more than 100 articles and book chapters. He is currently completing a historical study of the tortured consequences of the nation's official racial classification from 1790 to the present.

G. Michael Purdy, Ex Officio

Director, Lamont-Doherty Earth Observatory
Professor, Department of Earth and Environmental Sciences

Michael Purdy is Director of Columbia University’s Lamont-Doherty Earth Observatory. In this position his primary interests are in the building of a first class interdisciplinary research institution that leads the world, not only in the quality of its research, but also in its ability to relate the results of this research to earth issues of importance to humanity.

Purdy received his Ph.D. degree from the University of Cambridge, UK in Marine Geophysics in 1974 and joined Woods Hole Oceanographic Institution (WHOI) in Massachusetts as a Post Doctoral Scholar. Over the next 20 years he built a successful research group specializing in observational ocean bottom seismology, studying the structure and dynamics of the earth’s crust beneath the ocean. He has spent, in total, more than three years at sea, carrying out experiments using ocean bottom seismic instrumentation designed and constructed within his group. He is also author or co-author of more than 60 research articles in peer reviewed journals, more than 20 other reports and articles, and more than 100 published conference abstracts.

From 1991 to 1995, Purdy served as Chairman of the Department of Geology and Geophysics at WHOI gaining experience in both national and international marine science planning and administration. In 1995 he became the Director of the Division of Ocean Sciences at the National Science Foundation, managing an annual budget of more than $200M - the primary source of funding for ocean sciences research in the nation’s universities. While at NSF he established the new multi-disciplinary research program “Life in Extreme Environments” and built several valuable interagency collaborations.

Jeffrey D. Sachs

Director, The Earth Institute
Quetelet Professor of Sustainable Development and Professor of Health Policy and Management, The Earth Institute

Jeffrey D. Sachs is the Director of The Earth Institute, Quetelet Professor of Sustainable Development, and Professor of Health Policy and Management at Columbia University, and a Research Associate of the National Bureau of Economic Research. He is also Special Advisor to United Nations Secretary General Kofi Annan on a group of poverty alleviation initiatives called the Millennium Development Goals.

Sachs serves as an economic advisor to governments in Latin America, Eastern Europe, the Former Soviet Union, Asia and Africa. He became internationally known in the 1980’s for advising these governments on economic reforms.

He is Co-Chairman of the Advisory Board of The Global Competitiveness Report, and has been a consultant to the IMF, the World Bank, the OECD, and the United Nations Development Program. During 2000-2001, he was Chairman of the Commission on Macroeconomics and Health of the World Health Organization, and from September 1999 through March 2000 he served as a member of the International Financial Institutions Advisory Commission established by the U.S. Congress.

In February 2002 Nature Magazine stated that Sachs "has revitalized public health thinking since he brought his financial mind to it." He was cited in The New York Times Magazine as "probably the most important economist in the world" and called in Time Magazine’s 1994 issue on 50 promising young leaders "the world's best-known economist." In 1997, the French magazine Le Nouvel Observateur cited Professor Sachs as one of the world's 50 most important leaders on globalization. His syndicated newspaper column appears in more than 50 countries around the world, and he is a frequent contributor to major publications such as the New York Times, the Financial Times of London, and the Economist Magazine.

Sachs' research interests include the links of health and development, economic geography, globalization, transition to market economies in Eastern Europe and the former Soviet Union, international financial markets, international macroeconomic policy coordination, emerging markets, economic development and growth, global competitiveness, and macroeconomic policies in developing and developed countries. He is author or co-author of more than two hundred scholarly articles, and has written or edited many books.

Sachs is the recipient of many awards and honors, including membership in the American Academy of Arts and Sciences, Harvard Society of Fellows, and the Fellows of the World Econometric Society. He is a member of the Brookings Panel of Economists and the Board of Advisors of the Chinese Economists Society, among other organizations. He received honorary degrees from many universities including St. Gallen University in Switzerland, the Lingnan College of Hong Kong, and Varna Economics University in Bulgaria, and an honorary professorship at Universidad del Pacifico in Peru. Distinguished lecture series include the London School of Economics, Oxford University, Tel Aviv, Jakarta, Yale and many others.

Prior to his July, 2002 arrival at Columbia University, Sachs spent over twenty years at Harvard University, most recently as Director of the Center for International Development and Galen L. Stone Professor of International Trade.

Sachs was born in Detroit, Michigan, in 1954. He received his B.A., summa cum laude, from Harvard College in 1976, and his M.A. and Ph.D. from Harvard University in 1978 and 1980 respectively. He joined the Harvard faculty as an Assistant Professor in 1980, and was promoted to Associate Professor in 1982 and Full Professor in 1983.

Pedro Sanchez, Ex Officio

Director, Tropical Agriculture and the Rural Environment Program
Director, Millennium Villages Project

Pedro Sanchez is Director of Tropical Agriculture and the Rural Environment Program and of the Millennium Villages Project, and is a Senior Research Scholar at the Earth Institute. He serves as Co-Chair of the Hunger Task Force of the Millennium Project, an advisory body to the United Nations. Sanchez served as Director General of the World Agroforestry Center (ICRAF) headquartered in Nairobi, Kenya from 1991-2001. He is also Professor Emeritus of Soil Science and Forestry at North Carolina State University, and was a visiting professor at the University of California, Berkeley. In April 2006 he was elected a Fellow of the American Association for the Advancement of Science. He was named a MacArthur Foundation Fellow in 2003, and received the World Food Prize in 2002.

A native of Cuba, Sanchez received his BS, MS and PhD degrees from Cornell University, and joined the faculty of North Carolina State University in 1968. His professional career has been dedicated to improving the management of tropical soils through integrated natural resource management approaches to achieve food security and reduce rural poverty while protecting and enhancing the environment. Sanchez has lived in the Philippines (working at the International Rice Research Institute), Peru (working at the National Research Institutes), Colombia (working at the International Center for Tropical Agriculture) and Kenya.

Sanchez is author of Properties and Management of Soils of the Tropics (rated among the top 10 best-selling books in soil science worldwide), and author of over 200 scientific publications. He is currently writing the second edition of this book. He is a Fellow of the American Society of Agronomy and the Soil Science Society of America. He has received decorations from the governments of Colombia and Peru and was awarded the International Soil Science Award and the International Service in Agronomy Award. In February 2001 the Catholic University of Leuven, Belgium awarded him a Doctor Honoris Causa degree for his work on tropical soils in Africa. In August 2001 Sanchez was anointed a Luo Elder with the name of Odera Kang’o by the Luo community of Western Kenya, in recognition for his assistance in eliminating hunger from many villages in the region.

Peter Schlosser

Associate Director and Director of Research, the Earth Institute Vinton Professor of Earth and Environmental Engineering in the Faculty of Engineering and Applied Science
Professor, Department of Earth and Environmental Sciences
B.S. /M.S., Heidelberg, 1981; Ph.D., 1985.

Schlosser's research focuses on water systems, primarily in oceans and groundwater. His work reflects his concern about problems caused by human impact and needs for solutions based on thorough scientific understanding of natural systems. His water movement studies utilize natural and anthropogenic trace substances such as radiocarbon, oxygen-18, radioactive hydrogen and its decay product He-3, as well as measurement of noble gases in groundwater.

His groundwater flow studies concern shallow and deep aquifers, especially as they relate to environmental risk/impact studies. Results permit reconstruction of continental paleotemperatures records and flow studies. Schlosser's ocean research concerns water circulation in the ocean surface, movement into the deep ocean, and circulation patterns within the deep ocean. This work includes linkages to the climate variability and age dating of the water masses.

Current research also is directed toward an exploration of mixing and gas exchange in river and estuary environments, particularly utilizing SF-6 and He-3 studies. Schlosser's publications include "SF-6 and He-3 tracer release experiment: A new method of determining longitudinal dispersion coefficients in large rivers," Environment, Science and Technology (1996, with J. Clark, M. Stute and H.J. Simpson); "Paleotemperatures in the southwestern United States derived from noble gases in ground water," Science (1992, with M. Stute, J. Clark and W.S. Broecker); and "Reduction of deepwater formation in the Greenland Sea during the 1980s: evidence from tracer data," Science (1991, with G. Boenisch, M. Rhein and R. Bayer).

Elliott Sclar

Professor of Urban Planning, Graduate School of Architecture, Planning and Preservation
Professor of International Affairs, School of International and Public Affairs
Director, Center for Sustainable Urban Development, The Earth Institute

Elliott Sclar is the Director of CSUD and Professor of Urban Planning and International Affairs at Columbia University. He holds senior appointments in the Graduate School of Architecture, Planning, and Preservation and the School of International and Public Affairs and is an active participant in the work of the Earth Institute at Columbia University (EI). Sclar is a member of the Advisory Board of the Global Research Network on Human Settlements (HS-NET), UN-HABITAT, and a member of the World Economic Forum's Global Agenda Council on Urban Management. Sclar was Co-coordinator of the Taskforce on Improving the Lives of Slum Dwellers. It is one of the ten taskforces set up by the UN Millennium Project to help guide the implementation of the United Nation's Millennium Development Goals. The Taskforce's book length report (2005): A Home in the City,(PDF Download), is available on the UN Millennium Project website and from Earthscan.

As a professional economist, Professor Sclar has written extensively about the strengths and limitations of markets as mechanisms for effective public policy implementation. Sclar's book You Don't Always Get What You Pay For: The Economics of Privatization (2000), a critique of over reliance on market mechanisms, has won two major academic prizes: the Louis Brownlow Award for the Best Book of 2000 from the National Academy of Public Administration and the 2001 Charles Levine Prize from the International Political Science Association for a major contribution to the public policy literature. It is a definitive work in the field.

In recent years Sclar has been a leading figure in a scholarly movement to reconnect the work of population health experts and urban planners in creating healthier cities. (See his recent series of articles in The Lancet, American Journal of Public Health, the Journal of Urban Health and a report published by the Transportation Research Board Institute of Medicine) (PDF Download). One of the main challenges he sees is the need to begin to develop more precise measurements of built environment impacts on population health. In November 2007 he received the Humanitarian of the Year Award from the International Society for Urban Health in recognition of his work in this field.

Elke Weber

Jerome A. Chazen Professor of International Business, Columbia Business School
Professor, Department of Psychology

Elke Weber works at the intersection of psychology and economics. She is an expert on behavioral models of judgment and decision making under risk and uncertainty. Recently she has been investigating psychologically appropriate ways to measure and model individual and cultural differences in risk taking, specifically in risky financial situations and environmental decision making and policy. Weber is co-director for the Columbia Center for the Decision Sciences and is co-director of the Earth Institute’s Center for Research on Environmental Decisions. Weber is past president of the Society for Judgment and Decision Making, coeditor of Risk Decision & Policy and associate editor of Organizational Behavior and Human Decision Processes. She serves on the editorial boards of two other journals, on the executive councils of INFORMS's Decision Analysis Society and the Society for Mathematical Psychology and on an advisory committee of the National Academy of Sciences on Human Dimensions in Global Change. Weber received her B.A. from York University, Canada, in 1980, and her M.A. and Ph.D. from Harvard University in 1984.

Stephen E. Zebiak, Ex Officio

Director General, International Research Institute for Climate and Society
Senior Research Scientist, Lamont-Doherty Earth Observatory

Zebiak has worked in the area of ocean-atmosphere interaction and climate variability since completing his Ph.D. at the Massachusetts Institute of Technology in 1984. He and Mark Cane were the authors of the first dynamical model used to predict El Niño successfully. He has served on numerous advisory committees, including those for the US TOGA Program, the Atlantic Climate Change Program, the Pan American Climate Studies Program, the AMS Committee on Climate Variations, and the Center for the Study of Science and Religion (CSSR).

Zebiak is currently chair of the International CLIVAR Working Group on Seasonal-to-Interannual Prediction, co-chair of the US CLIVAR Seasonal-to-Interannual Modeling and Prediction Panel and member of the advisory board of the Canadian CLIVAR Research Network. He is a member of the APEC Climate Network (APCN) Steering Committee, and is an associate editor of the Journal of Climate.

Allen Zweben

Associate Dean for Research and Academic Affairs, School of Social Work
Professor of Social Work

Dr. Zweben received his doctorate in social welfare from Columbia University in New York, in 1977. From 1975 until 1986 he had a cross appointment at the Addiction Research Foundation and the University of Toronto, Canada where he was Director of Psychosocial Research and Associate Professor, respectively. Dr. Zweben was at the University of Wisconsin, Milwaukee, from 1986-2004 where he was Director of the Center for Addiction and Behavioral Health Research (CABHR) and Professor. In 2005, Dr. Zweben returned to Columbia University where he is currently Professor and Associate Dean for Research and Sponsored Projects in the School of Social Work.

Dr. Zweben is an expert in areas related to addiction medicine, including screening and assessment, brief intervention, motivational interviewing, cognitive-behavioral therapy, twelve-step facilitation therapy, HIV-risk reduction strategies, couples and family treatment, study recruitment/ compliance techniques, patient-treatment matching, medications development, and outcome measurement. His research and publications have focused primarily on innovative assessment and treatment approaches for substance use problems.

Dr. Zweben has been a principal investigator of numerous behavioral and medication trials including Project MATCH, an NIAAA-funded, landmark, patient-treatment matching study, the COMBINE study, a NIAAA-funded project examining the efficacy of combining pharmacotherapy and psychotherapy interventions for alcohol problems and HEART-to-HEART, a NIAAA-funded study testing the efficacy of combining alcohol and HIV risk reduction interventions for women at risk for HIV infection who are seeking help for alcohol problems. Currently, Dr. Zweben is testing a new alcohol medication combined with medical management in treating individuals with alcohol problems.