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Craig Bethke photoCraig Bethke, the Ralph E. Grim Professor at the University of Illinois, is a hydrogeologist and geochemist who specializes in the quantitative analysis of physical, chemical, and biologic systems in the geosphere. He has written two books, most recently Geochemical and Biogeochemical Reaction Modeling with Cambridge University Press, and is an author of more than fifty journal publications. He is primary author of the software packages Basin2 and The Geochemist’s Workbench, which are installed at thousands of universities and research laboratories around the world. He has taught invited workshops in North America, Europe, Asia, and Australia. Prof. Bethke is the recipient of the Oscar E. Meinzer Award from the Geological Society of America and the Waldemar Lindgren Award from the Society of Economic Geologists; he is a Fellow of the Geological Society of America and the American Association for the Advancement of Science.


Joel Blum photoJoel D Blum holds the John D MacArthur and Arthur F Thurnau Professorships and is professor of Geological Sciences and of Ecology & Evolutionary Biology at the University of Michigan. He obtained his BA degree from Case Western Reserve University, his MS degree from the University of Alaska, and his PhD from the California Institute of Technology. He was a Professor of Earth Sciences at Dartmouth College for nine years before moving to the University of Michigan in 1999. Professor Blum’s research focuses on the sources, fate and cycling of metals in the environment. Most recently he has focused on understanding the biogeochemistry of mercury in aquatic, terrestrial and atmospheric systems, in many cases using mercury stable isotopes. Blum has published over 150 research papers and his work has been cited over 3800 times. He has served on numerous advisory panels for funding agencies including the NSF, NIH, and DOE. He is currently Co-Editor in Chief of the journal Chemical Geology, and is a Fellow in the American Association for the Advancement of Science, the Geochemical Society, and the Geological Society of America. He is past Chair (2000-2005) of the Geological Sciences Department at the University of Michigan.


Jeffrey Gralnick photoDr. Jeffrey A. Gralnick has been an Assistant Professor at the University of Minnesota - Twin Cities since 2005. His academic appointment is in the Department of Microbiology in the Medical School, but his office and lab reside in the BioTechnology Institute on the University of Minnesota's St. Paul campus. He trained in classic bacterial genetics and physiology at the University of Wisconsin - Madison with Dr. Diana Downs. He joined Dr. Dianne Newman's research group in 2003 at Caltech as a postdoctoral fellow and has been working with Shewanella ever since. The Gralnick Lab studies basic physiology of extracellular electron transfer in Shewanella and applied aspects of these bacteria in the areas of biocatalysis, bioremediation and bioenergy.


David Hyndman photoDavid Hyndman is a Professor and Chair of the Department of Geological Sciences at Michigan State University.  Dr. Hyndman's research interests include quantifying the human impacts on changes in climate and land use on the water cycle, developing novel methods to characterize the aquifers that store and transmit water supplies critical to human and ecological health, and helping develop methods to clean contaminated aquifers using emerging technologies such as bioremediation. His research involves coupling novel models with high resolution field data to explore the physical, chemical, and ecological processes in natural and anthropogenically altered systems. He has also developed methods to model the ecological health of stream systems by coupling groundwater and ecological models that simulate stream temperature along with the transport and fate of nutrients and associated ecosystem stressors such as low dissolved oxygen levels. Much of this research has been done in interdisciplinary teams that span hydrogeology, geochemistry, microbiology, geophysics, civil engineering, ecology, and social sciences. He has coauthored over 40 peer reviewed journal articles, and written or co-edited three books, including one the most popular introductory college textbooks on Natural Disasters and Hazards. 


Douglas Kent photoDouglas B. Kent., U. S. Geological Survey, conducts research targeted at understanding the coupled physical, chemical, and biological processes that influence the fate and transport of inorganic solutes in groundwater.  His research is carried out over a range of spatial and temporal scales and involves spectroscopic, laboratory, and field experimental approaches as well as numerical modeling.  He has served as an associate editor for Water Resources Research as well as program chair and division chair of the Geochemistry Division of the American Chemical Society.


Liyuan Liang photoDr Liyuan Liang is a Distinguished Staff Scientist and Group Leader with 25 years of research experience in environmental surface chemistry. Her research employs fundamental chemical principles to solve problems that impact natural environments. Current and past projects include biological and chemical transformation of mercury at the sediment-water interface; geochemical and interfacial processes affecting metal oxide colloidal particles in aquatic and subsurface environments; nanoparticle transformation, transport and fate in aqueous environments; neutrons in probing organic and mineral interface and aggregation behavior of aqueous organic/inorganic phases; sequestration studies of clathrate CO2 gas hydrates; R&D of remediation technologies (such as Permeable Reactive Barrier technology) for remediating volatile organic solvents, uranium, technetium in groundwater.  She has served on national and international committees, organized and chaired national international conference sessions. Much of her work has been sponsored by the DOE Office of Biological and Environmental Research, particularly in programs on subsurface science, carbon sequestration/management, and environmental management sciences. Her extensive experience includes appointments at leading US and UK academic and government institutions.


Frank Loeffer photoDr. Frank E. Loeffler is a Governor’s Chair Professor at The University of Tennessee and at Oak Ridge National Laboratory (ORNL).  He has appointments in the Department of Microbiology and the Department of Civil & Environmental Engineering, and with ORNL’s Biosciences Division.  He received his B.S. degree in Biology/Agricultural Sciences in 1986, and an M.A.Sc. (Diplom) in 1990, both from the University of Hohenheim in Germany.  He performed his doctoral work in the department of Technical Biochemistry at the Technical University Hamburg-Harburg, Germany, and received his Ph.D. in 1994.  The same year, he was awarded a Feodor-Lynen fellowship from the Alexander von Humboldt foundation and joined the Center for Microbial Ecology at Michigan State University.  In 1999, he accepted a tenure-track position in the School of Civil and Environmental Engineering at the Georgia Institute of Technology, where he was promoted to Associate Professor in 2004, awarded the Carlton Wilder Professorship in Environmental Engineering in 2006, and became a Full Professor in 2010.  Since 2006, he had a joint appointment in the School of Biology.  He has established a vigorous research program and emerged as a nationally and internationally recognized leader in environmental biotechnology conducting research at the interface of basic sciences and environmental applications.  In May 2010, Dr. Loeffler joined The University of Tennessee and ORNL as a Governor’s Chair Professor.


Daniel Rothman photoDaniel H. Rothman is a theoretical geophysicist who has contributed widely to the understanding of the organization of the natural environment. His work has resulted in fundamental advances in subjects ranging from seismology and fluid flow to biogeochemical cycling and paleobiology. He has also made significant contributions to research in statistical physics. Much of his recent interests focus on the dynamics of Earth's carbon cycle.

Rothman received his AB in applied mathematics from Brown University in 1979 and his PhD in geophysics from Stanford   University in 1986.  He has been a member of the faculty of the Department of Earth, Atmospheric, and Planetary Sciences at MIT since 1986, and has held visiting appointments at the University of Chicago, Ecole Normale Superieure, and Harvard's Radcliffe Institute for Advanced Study, among others.  Rothman is co-founder of the Lorenz Center at MIT, an interdisciplinary laboratory devoted to learning how climate works.


Lee Slater photoLee Slater is a Professor of Near Surface Geophysics at Rutgers-Newark, New Jersey, USA. He received his Ph.D. in Hydrogeophysics from Lancaster University (U.K.) in 1997. He has coauthored over eighty peer-reviewed publications on near surface and environmental geophysics, and served as principal investigator on multiple awards from the National Science Foundation, U.S. Department of Energy, U.S. Department of Defense and U.S. Geological Survey totaling in excess of $4 m of external research funding. Professor Slater served as Chair of the Near Surface Geophysics Focus Group of the American Geophysical Union (AGU) from July 2008-June 2010, Associate Editor of the AGU journal Water Resources Research from October 2004-December 2010 and Associate Editor of the Journal of Environmental and Engineering Geophysics (JEEG) from 1999-2004. He recently served as guest Associate Editor of the special issue on “Hydrogeophysics – Methods and Processes”, European Association of Geoscientists and Engineers (EAGE) journal of Near Surface Geophysics.


Van Cappelen photoPhilippe Van Cappellen joined the University of Waterloo as the Canada Excellence Research Chair in Ecohydrology on June 1, 2011. He was previously the Georgia Research Alliance Eminent Scholar in Global Environmental Studies at the Georgia Institute of Technology in Atlanta, USA, and a Professor of Geochemistry at Utrecht University in the Netherlands. Dr. Van Cappellen holds a degree in Geology and Mineralogy from the Free University of Brussels. He obtained his PhD in geochemistry from Yale University in 1991 and subsequently was a Postdoctoral Fellow at the Swiss Institute of Aquatic Sciences. His research focuses on the biogeochemistry of soils, sediments and aquatic ecosystems, the cycles of water, carbon, nutrients and metals, global change, geobiology, chemical hydrology, and environmental modeling. Dr. Van Cappellen was awarded the Herbert Hoover Fellowship of the Belgian-American Educational Foundation, the Philip M. Orville Prize for Outstanding Scholarship at Yale University, a Sigma Xi Young Faculty Award, an Advanced Research Scholarship of the French Government, a Pioneer Grant from the Netherlands Organisation for Scientific Research, and the 2007 André Dumont Medal from the Belgian Geological Society. He currently serves on the editorial boards of Geomicrobiology Journal and Limnology and Oceanography: Fluids and Environments, and has authored or co-authored over 120 peer-reviewed scientific articles and book chapters.