Invitation for Comments on the "Short List" Candidates for the

Ad hoc Integrated Nitrogen Research Committee
of the EPA Science Advisory Board (SAB)
August 21, 2006

The EPA Science Advisory Board (SAB) Staff Office is forming a new ad hoc
Integrated Nitrogen Research Committee. Nominations were requested in the 70 FR no.
48, (pages 12476-12477), March 14, 2005. Information on the SAB, the ad hoc
Committee, and the nomination process appear in the above referenced Federal Register
notice which is available at the SAB website (http://www.epa.gov/fedrgstr/EP A-
SAB/2005/March/Dav-14/sab4960.htm). Per the Federal Register notice, the SAB Staff
Office requested nominees who were nationally recognized experts in one or more of the
following areas:

(1)	The sources of reactive nitrogen released into the environment from
human activities and natural sources, including: intentional cultivation of crops
which promote conversion of nitrogen gas to organic nitrogen; combustion of fossil
fuels; and the Haber-Bosch process.

(2)	The behavior and effects of reactive nitrogen in the atmosphere, including
tropospheric ozone, particulate matter and visibility, and greenhouse gases and
stratospheric ozone.

(3)	The behavior and effects of reactive nitrogen on humans and ecosystems in
the terrestrial environment, including grassland/forest and agroecosystem.

(4)	The behavior and effects of reactive nitrogen in the aquatic environment,
including wetlands, groundwater, surface waters, estuarine, coastal and marine
environments.

(5)	Risk Reduction Approaches including implementation of regulatory and
voluntary approaches to risk reduction.

(6)	Specific control technologies or practices, including combustion controls for
nitrogen oxides, ozone precursors, and particulate matter/visibility and practices for
controlling ammonia in agriculture.

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The SAB Staff Office has reviewed the nominations for the Panel and has
identified 51 candidates for potential service on the ad hoc Integrated Nitrogen Research
Committee. We hereby invite comments from members of the public for relevant
information or other documentation that the SAB Staff Office should consider in the
selection of this Committee.

The SAB Staff Office reviews all information provided by candidates; information
that the public may provide in response to the posting of information about the candidates
at the SAB website, and information gathered by the SAB Staff independently on the
background of the candidates. The SAB Staff completes its review of information
regarding confliction of interest, possible appearance of a lack of impartiality, and
appropriate balance and breadth of expertise needed for the Committee's activities. The
SAB Staff Office Director will make the final decision about who will serve on the
Committee.

Please email your comments no later than September 12, 2006 to the attention of
Ms. Kathleen White, Designated Federal Officer (white.kathleen@epa. gov).

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Dr. Mark Alley is W.G. Wysor Professor of Agriculture in the Dept. of Crop & Soil
Environmental Sciences at Virginia Tech, Blacksburg, VA. He received a B.S. Degree in
Agriculture from Berea College, Berea, KY, 1969, an M.S. Degree in Agronomy, Virginia
Polytechnic Inst. & State University in 1971 ( Thesis Title: Evaluation and Calibration of
Soil Tests for Available Zinc), and a Ph.D. Degree in Agronomy from Virginia Polytechnic
Inst. & State University in 1975. (Dissertation Title: Manganese in Virginia Soils and
Correction of Manganese Deficiency in Soybeans.) His research interests include
nitrogen cycling and management in agronomic cropping systems involving corn,
soybeans, wheat and barley. He teaches undergraduate and graduate courses in soil
fertility and soil-plant relationships. In addition, he serves as an advisor to the Virginia
Division of Soil and Water Conservation on matters relating to nutrient management in
crop production, and his extension activities focus on training and support of county
agents and agribusiness representatives. His honors and awards include International
Fertilizer Industry Association International Award for 2002, Virginia Agribusiness Council
2001 Extension Service Award, W. G. Wysor Professor of Agriculture, Jan. 1, 1999.
Endowed Professorship, National Association of Wheat Growers Excellence in Extension
Award - 1996, American Society of Agronomy Fellow - 1996, Soil Science Society of
America Fellow - 1995, Virginia Small Grains Association Research Award -1992.

Dr.Viney Aneja is a Professor in the Department of Marine Earth and Atmospheric
Sciences at North Carolina State University. He holds the following degrees: B. Tech.
1971 Indian Institute of Technology, Kanpur, India, Major: Chemical Engineering; M.S.
1975 North Carolina State University, Raleigh, NC, Major: Chemical Engineering; PhD
1977 North Carolina State University, Raleigh, NC, Major: Chemical Engineering and
Minor: Polymer Science and Operations Research; and MBA 1986 Union College,
Schenectady, NY, Major: Planning and Control. His areas of professional interest are:
air quality and atmospheric chemistry: transport, transformation and fate of pollutants;
natural emissions of trace gases (Nitrogen, Sulfur, and Hydrocarbons); biogeochemical
cycling of pollutants; atmospheric monitoring of trace gases; biospheric-atmospheric
interactions; photochemical oxidants and gas-to-particle conversion. His research has
been funded by the U.S Environmental Protection Agency; National Science Foundation;
US Department of Agriculture; National Research Initiative; National Park Service;

National Oceanic and Atmospheric Administration; University Corporation for Atmospheric
Research; NC Department of Environment and Natural Resources; NC State University
Animal and Poultry Waste Management Center; Phosphate and Potash Institute; The
Fertilizer Institute; Kenan Institute for Engineering, Technology, and Science; and others.
He is a member of the U.S. Department of Agriculture's Agricultural Air Quality Task
Force. He has led the State of North Carolina's Nitrogen Emissions, Transport,
Transformation, and Deposition effort since 1997, and has successfully organized two
International Conferences on Nitrogen related issues. In 2001 he was appointed Program
Scientist and Principal Investigator for the Animal and Poultry Waste Management
Center/ Smithfield Foods funded Program OPEN (Odor, Pathogens, and Emissions of
Nitrogen). During 2006 he organized and chaired the Steering Committee for the first
"Workshop on Agricultural Air Quality: State of the Science". Dr. Aneja has published
numerous scientific peer reviewed papers on the subject; and was invited to offer
testimony to the North Carolina General Assembly on the impact of increasing Nitrogen in

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North Carolina's environment. Dr. Aneja is highly respected by his peers as
demonstrated by his receipt of the Air and Waste Management Association's 1998 Frank
A. Chambers Award (AWMA's highest honor) and the 2001 Lyman A. Ripperton Award
(for distinguished achievement as an educator in the field of air pollution). He is the
Associate Editor of the International Journal "Air Quality, Atmospheric Environment and
Health", and serves on the Editorial Boards of numerous International Journals.

Dr. Thomas W. Asmus does consulting, serves as adjunct faculty at the University of
Michigan, and is an active volunteer. Formerly, he was Senior Research Executive at
DaimlerChrysler Corporation in Auburn Hills, Michigan. He earned a BS from Western
Michigan University, to which he returned after serving for two years in the Peace Corps
in Honduras. He then earned an M.S. and Ph.D. in Physical Chemistry from Western
Michigan and did a post-doc in combustion kinetics at Drexel. In his career, Dr. Asmus
addressed the combustion component of engine research and related issues such as fuel
efficiency and emissions (including NOx). He is knowledgeable about alternative
combustion systems. He was elected a member of the National Academy of Engineering
in recognition of his contributions to the design, analysis, and control of heat engines of all
types. He is a fellow of the Society of Automotive Engineering, and a member of the
American Society of Mechanical Engineers.

Dr. William D. Bowman is Professor, Department of Ecology and Evolutionary Biology
and Director, Mountain Research Station, INSTAAR at the University of Colorado. He
received his B.A., with distinction from the University of Colorado, an M.S. in ecology from
San Diego State University, and a Ph.D. in Botany from Duke University. He did postdoc
at Australian National University and Duke University. His areas of expertise and
research activities include plant ecology, ecosystems science, alpine ecology, and
ecosystem response to N deposition. He has worked on terrestrial ecosystem responses
to N deposition on Niwot Ridge and Rocky Mountain National Park in the southern
Rockies, Glacier National Park in the northern Rockies, and in the Tatra Mountains of
Slovakia. From 1998 to 2005 he served as the North American Representative to the
Conference Board of the Global Mountain Biodiversity Assessment, a program within
DIVERSITAS, sponsored by the Swiss Academy of Sciences, He has served on advisory
committees for National Park Service, U.S. Forest Service, Indiana University Geological
Field Station, and the NSF-LTER site review team. He is a member of Ecological Society
of America, Organization of Biological Field Stations, American Institute of Biological
Sciences.

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Dr. Elizabeth W. Boyer is an Assistant Professor in the Department of Environmental
Science, Policy & Management at the University of California, Berkeley. She holds a B.S.
degree from Penn State University in the Department of Geography (concentration in
remote sensing and geographic information), M.S. and Ph.D. degrees from the University
of Virginia in the Department of Environmental Sciences (concentration in hydrology), and
post-doctoral experience at Cornell University in the Program in Biogeochemistry &
Environmental Change. Prior to her current position, she served on the faculty at the
State University of New York's College of Environmental Science and Forestry, and has
held adjunct positions at Cornell University and at Syracuse University. Dr. Boyer's
research program addresses coupled hydrological and ecological processes that affect
water quality (particularly nutrients & sediments) and water quantity (streamflow and
water yield) issuing from watersheds. She is interested in how human activities such as
land use change and urbanization and natural variability such as droughts and floods
influence ecosystems and water quality conditions in surface waters. She is the co-chair
of the upcoming Gordon Conference on Catchment Science: Interactions of Hydrology,
Biology and Geochemistry, and is an active participant in activities of the American
Geophysical Union and the Consortium of Universities for the Advancement of Hydrologic
Science.

Dr. Patrick Brezonik is program director for environmental engineering at the National
Science Foundation. His research interests are focused on the impacts of human activity
on water quality and the biogeochemical cycles of important elements (nitrogen,
phosphorus, trace metals) in large natural systems-watersheds and lakes. Field studies,
including experimental manipulations in large systems, and modeling approaches are
emphasized. His current research projects are in four main areas: (1) mercury
biogeochemistry; (2) applications of satellite imagery to evaluate lake quality; (3) coupled
biogeochemical cycles of carbon, nitrogen and phosphorus in urban and agricultural
systems; and (4) small-scale nutrient cycling processes in soil-sediment-water systems.
His mercury research is concerned with chemical transformations of mercury in wetland-
lake ecosystems, with emphasis on photochemical processes and interactions between
mercury forms and natural organic matter (humic substances) in these water bodies. My
work with satellite imagery focuses on regional analyses and long-term trend
assessments of trophic state conditions in lakes by use of Landsat and new satellite
platforms. Our work on coupled biogeochemical cycles of the major elements is highly
interdisciplinary and involves comparative analyses at the regional scale of nutrient
budgets for urban, agricultural and natural regions in the Twin Cities and Phoenix
(Arizona) metropolitan areas. Quantifying the importance of denitrification as a nitrogen
sink in small agricultural streams is an example of a current project in the fourth area.
Some of this research is conducted through large multi-disciplinary projects. For example,
the experimental acidification of a whole lake in northern Wisconsin was done in
cooperation with limnologists, fisheries biologists, and hydrologists from several
institutions and agencies. Recent research has been conducted in a variety of locations,
including Lake Okeechobee, Florida, urban lakes in the Twin Cities and pristine lakes in
northern Michigan, Wisconsin, and Minnesota. He holds the following degrees: B.S.,
1963, Chemistry, Marquette University, M.S., 1965, Water Chemistry, University of
Wisconsin-Madison, and Ph.D., 1968, Water Chemistry, University of Wisconsin-Madison

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He served as Assistant, Associate, and Full Professor, Department of Environmental
Engineering Sciences at the University of Florida from 1966-81 and Guest Professor at
EAWAG-Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, 1971-72 and
summer, 1980

Dr. Richard G. Carlton manages the Electric Power Research Institute's Integrated
Facilities Water Management Program, and is responsible for strategic planning and
project management. Research emphases in the Program include novel approaches to
managing nitrogen in waste streams, ash pond management (with emphasis on nitrogen
and metals removal), dry and low water cooling technologies, non-oxidizing biocides for
cooling systems, plant water treatment, and constructed wetlands for waste water
treatment. Other responsibilities include program and project direction, interaction with
customers in and out of the power sector, and assistance to specific utilities to develop
tailored solutions to emerging problems. Dr. Carlton manages research in diverse areas,
including 1) avian interactions with power transmission and distribution structures, wind
power facilities, and communication towers; 2) sources and fates of atmospheric nitrogen
deposition; 3) development of regional nutrient trading schemes to reduce eutrophication
of waterways, 4)peregrine falcon nesting on power plant stacks; 4) food-borne mercury
exposure in the common loon; 5) release of pollutants from contaminated sediments; and
6) mercury and selenium cycling and food chain transfer in terrestrial and aquatic
ecosystems. He is a member of the American Society for Limnology and Oceanography,
the Societas Internationalis Limnologiae, and the Society for Environmental Toxicology
and Chemistry. His educational background includes a B.S. in Limnology from the
University of California, Davis; an M.S. in Ecology from the University of California, Davis;
and a Ph.D. in Zoology from Michigan State University. His areas of expertise are the
biogeochemistry of nitrogen, phosphorus, mercury, selenium; treatment of nitrogenous
waste streams; nitrogen emissions and discharges from coal-fired power plants. He
served as major professor and advisor for PhD and MS students while serving as
professor at the University of Notre Dame.

Dr. Kenneth G. Cassman currently serves as Director of the Nebraska Center for Energy
Sciences, and is the B. Keith and Norma F. Heuermann Professor of Agronomy at the
University of Nebraska. He received a BSc degree in biology from the University of
California-San Diego (1975), and a PhD in Agronomy and Soil Science from the
University of Hawaii (1979). His expertise is centered within the disciplines of soil science,
agroecology, and plant ecophysiology. Research activities have focused on: (1) plant
nutrition, root ecophysiology, soil fertility and nutrient cycling to improve fertilizer efficiency
and to reduce negative effects on environmental quality; (2)crop yield potential, soil
carbon sequestration, and greenhouse gas emissions in maize-based cropping systems
of the USA Corn Belt; (3) the long-term sustainability of intensive crop production systems
and global food security. Recently he has focused attention on the role of agriculture in
contributing to renewable energy supplies through production of ethanol and biodiesel
fuels from cereal, oilseed, and sugar crops, and the environmental impact of expanded
biofuel production from agricultural crops. He served on the California Task Force on
Sustainable Agriculture (1985-86), the Board of Directors for the Nebraska Crop

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Improvement Association (1996-2004), the Nebraska Crop Advisors Executive Board
(1996-2002), the Council on Agriculture Science and Technology (CAST) Task Force on
Animal Agriculture and Global Food Security (1996-99), Chair of the Nebraska
Environmental Livestock Environmental Quality Task force (1998-2001), and on the
Science and Policy Committee for the 3rd International Nitrogen Conference (2003-04).
In addition, he has been active as an external program reviewer for a number of major
scientific institutions, including: CIMMYT (1997 and 2000), IITA (2001), the graduate
program at the Wageningen Agricultural University in the Netherlands (1998), and the
Department of Soil Science at the University of Wisconsin. In the past 11 years he and
his colleagues have obtained more than $6 million to support their research and
extension programs. This external funding has come a number of sources: the USDA,
DOE, Swiss Agency for Development and Cooperation, German Agency for Science and
Technology, the Potash and Phosphate Institute, Foundation for Agronomic Research,
and the Fluid Fertilizer Foundation. Professor Cassman has been elected Fellow of the
American Association for the Advancement of Science, the Agronomy Association of
America, the Soil Science Society of America, and the Crop Science Society of America,
and has received a number of national and international awards for research excellence.

Dr. Nicholas B. Comerford is Professor of Forest Soils and Graduate Coordinator in the
Soil and Water Science Department at the University of Florida. He holds a B.S. from the
University of Illinois (Forestry), an M.S. from the University of Minnesota (Forestry), and a
Ph.D. from the State University of New York - Syracuse (Forestry). His professional
Interests are in the areas of forest soils, optimizing soil management in forest operations,
soil-tree root- soil interactions, modeling of soil nutrient bioavailability, soil P cycling and
chemistry, and soil environmental services in the Tropics and Southeastern U.S. His
teaching includes a graduate course in Soil Nutrient Bioavailability, occasional Graduate
Seminars in Tropical Soils and a new course to be offered on Soil Environmental
Services. He belongs to the Soil Science Society of America, Sociedade Brasiliera de
Ciencia do Solo, and the The Fulbright Association.

Dr. Mark B. David is Professor of Biogeochemistry in the Department of Natural
Resources and Environmental Sciences at the University of Illinois at Urbana-Champaign,
where he has conducted research and teaching since 1985. He received his Ph.D. in
environmental science/biogeochemistry from the State University of New York, College of
Environmental Science and Forestry in 1983, following an M.S. from the University of
Maine in 1980 (forest biogeochemistry), and B.S. from the Pennsylvania State University
in 1978 (forest science). His area of expertise is the biogeochemistry of nutrients in
agricultural, forested, and aquatic ecosystems. Dr. David was named a Fellow of the Soil
Science Society of America in 2005 and a Fellow of the American Society of Agronomy in
2006 (the highest honor of each of the societies), his two primary professional societies.
He is also a member of the Ecological Society of America. Based on the extensive
citations his publications have received (about 100 peer reviewed journal articles), Dr.
David is listed as an ISI Highly Cited Researcher, Ecology/Environment. His recent and
current research program is focused on agricultural and aquatic biogeochemistry of
nitrogen and phosphorus, including linkages between agricultural and aquatic systems.

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He has studied nitrogen transformations and export at agricultural field, watershed, and
regional scales; examined the use of wetlands for reducing downstream nutrient losses;
and has been evaluating the interactions of nutrients (nitrogen and phosphorus), algal
growth, and dissolved oxygen with resulting impacts on biotic integrity in Illinois streams
and rivers. Currently Dr. David is an associate editor for the Journal of Environmental
Quality, and previously served six years as associate editor of the Soil Science Society of
America Journal. He has served on numerous USDA proposal review panels, an NSF
Biocomplexity panel, and has been sought out and participated in many recent national
and international workshops related to nitrogen, agriculture, and stream export. National
and state competitive grants have supported his recent biogeochemistry research in
Illinois and the Midwest, including USDA-NRI Watershed Processes and Water
Resources Program, USDA 406 Water Quality program, NSF Biocomplexity in the
Environment Coupled Human/Natural Cycles, and the Illinois Council for Food and
Agricultural Research.

Dr. John W. Day, Jr. is Distinguished Professor Emeritus in the Department of
Oceanography and Coastal Sciences, School of the Coast & Environment at Louisiana
State University, where he has taught since 1971. He has published extensively on the
ecology and management of coastal and wetland systems and has over 150 peer-
reviewed publications. He is co-author (with M. Kemp, C. Hall, and A. Yanez-Arancibia) of
Estuarine Ecology, coeditor (with C. Hall) of Ecological Modeling in Theory and Practice,
coeditor (with W. Conner) of The Ecology of the Barataria Basin, An Estuarine Profile,
and coeditor (with A. Yanez-Arancibia) of the Ecology of Coastal Ecosystems in the
Southern Mexico: The Terminos Lagoon Region. Professor Day received his PhD in
marine sciences and environmental sciences from the University of North Carolina in
1971 working with Dr. H.T. Odum. Since then, he has conducted extensive research on
the ecology and management of the Mississippi Delta region and for the last 25 years, he
has studied coastal ecosystems in Mexico. He was a visiting professor in the Institute of
Marine Sciences of the National University of Mexico in 1978-1979, at the University of
Utrecht in the Netherlands during 1986, at the Laboratoire d'Ecologie, Unversite Claude
Bernard in Aries France during 1992-93, and in the Department of Geography at
Cambridge University in 2000-2001. He has also worked with the University of
Campeche and the Institute of Ecology in Xalapa, Mexico. Since 1992, Professor Day
has worked in the Mediterranean studying the impacts of climate change on wetlands in
Venice Lagoon and in the Po, Rhone and Ebro deltas. He is presently working on using
wetlands as a means of removing nitrogen from the Mississippi River. Dr. Day also
served as a member of the hypoxia reassessment taskforce and published with Dr.

William Mitsch an article in Bioscience on approaches to removing nitrogen from the
Mississippi River. He has served as chair of the National Technical Review Committee
that oversaw the Louisiana Coastal Area program, the restoration program for the
Mississippi delta. Dr. Day was a member of the Science Working Group on Coastal
Forested Wetlands appointed by the Governor of Louisiana, and the Working Group for
Post-Hurricane Planning for the Louisiana Coast established by the Headquarters of the
Corps of Engineers. In 1988, Dr. Day received the School of the Coast & Environment
Outstanding Faculty Teaching Award and in 2000, he received the Lipsey Professional

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Educator Award. In 2003, the Estuarine Research Federation presented Dr. Day with the
National William A. Niering Education Award.

Dr. Jorge A. Delgado is a Soil Scientist in the Soil-Plant-Nutrient Research Unit, of the
U.S. Department of Agriculture's Agricultural Research Service in; Fort Collins, CO. He
holds a B.S. Soil Science from the University of Puerto Rico; an M.S. Agronomy from the
Louisiana State University; and a Ph.D. Soil Fertility/Mineral Nutrition from the Louisiana
State University. He did a Post Doc in Biogeochemistry at USDA-ARS, Colorado. Dr.
Delgado is an expert in nitrogen management and in the use of isotopes,
biogeochemistry, and nitrogen fate and transport. He made important contributions in the
areas of site specific and regional scale evaluations of best management practices on
nitrogen fate and transport, and nitrogen use efficiencies. He established an international
network of experts to evaluate and implement new tools such as GIS, Nitrogen Index and
nitrogen models to assess effects of high risk cropping systems/landscape combinations
to reduce leaching losses and to increase nitrogen use efficiencies. He developed and
published a new nitrogen Index to assess the effects of management practices on
surface, atmospheric and leaching losses. He is a member of the Soil Science Society of
America, (since 1986); Soil Water Conservation Society, (since 1995); Agronomy Society
of America, (since 1986); Sigma Xi, (since 2002); Gamma Sigma Delta, (since 1982);
Alpha Zeta, (since 1981); Puerto Rico Society of Agronomy, (since 1982). Dr. Delgado
was Chair of the Soil Science Society of America, Division of Soil and Water Management
and Conservation, (2003-2004). Currently, he is Research Editor of the Journal of Soil
and Water Conservation, (2001-2009) and the Chair of the Soil Water Conservation
Society Editorial Board, (2001-2009). He has overseen the peer review of 400+
manuscripts during the last four years. He has led or co-led the organization of over 12
national and international symposiums and the publication of four symposiums in special
peer review journal issues during the last six years. He has been awarded presidential
citations by both the SWCS and SSSA. He has authored or co-authored the publication of
80+ papers related to nitrogen (50+ during the last five years). He was invited to conduct
several national and international presentations about nitrogen management and nitrogen
fate and transport. He has had visiting scientists from several countries working in
nitrogen management in his laboratory, and has ongoing research cooperation with
scientists from China, Mexico, Argentina, Switzerland, and elsewhere. Dr. Delgado has
been awarded Fellow Awards of the Soil Science Society of America (November-2005),
Soil and Water Conservation Society (July-2006) and Agronomy Society of America
(November-2006). Dr. Delgado was invited to form part of a USA national working group
composed of USDA-NRCS and state universities to develop a new generation of the
nitrogen index. He is the leader and facilitator of the Nitrate Leaching sub-group. He has
served on several peer review panels that have granted over 20 million dollars into
natural resources, soil science, and other environmental areas. He has served as
graduate advisor for CSU students studying and researching nitrogen management
practices and technology.

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Dr. Russell R. Dickerson received his AB in 1975 from the University of Chicago and his
Ph.D. in 1980 from The University of Michigan, where he studied the interaction of
radiation and trace gases in the atmosphere. Starting as Assistant Professor in the
Department of Meteorology he is currently the Department Chair, with affiliate
appointments in ESSIC and the Departments of Chemistry and Chemical Physics. Dr.
Dickerson's research involves the interactions of weather phenomena, such as
thunderstorms and atmospheric chemistry, ocean-atmosphere interactions, air pollution,
the links between particulate and gaseous chemistry, photochemical smog, and haze. He
has been involved in international chemistry/climate field experiments spanning the globe
- from the Southern Indian Ocean to the Arctic. He has written more than 80 publications
for the reviewed scientific literature. For the past ten years Dr. Dickerson has
collaborated closely with the Maryland Department of the Environment on the Regional
Atmospheric Measurement, Modeling and Prediction Program (RAMMPP) which makes
air quality forecasts, determines emissions, runs chemical transport models, and makes
measurements from the surface as well as aircraft to help develop the scientific basis for
strategies to improve air quality including State Implementation Plans.

Dr. Otto C. Doering received his BA from Cornell University, M.Sc. (Econ.) from the
London School of Economics and his Ph.D. from Cornell University. He has teaching,
research and extension responsibilities in the Department of Agricultural Economics at
Purdue University. He has overseas experience with the Ford Foundation and the
National Academy of Sciences, primarily in Southeast Asia. He has been a visiting
professor at Berkeley, Cornell, and North Carolina A&T State University. He is a
National Science Foundation evaluator for the NSF Industry/University Cooperative
Research Program. He is a public policy specialist and has served the U.S. Department
of Agriculture working on the 1977 and 1990 Farm Bills. In 1997 he was the Principal
Advisor to USDA's Natural Resources Conservation Service for implementing the 1996
Farm Bill. From 1985 to 1990 he was director of Indiana's State Utility Forecasting Group.
In 1999, he was team leader for the economic analysis of the White House's National
Hypoxia Assessment that looked at the dead zone in the Gulf of Mexico. Dr. Doering has
served on Indiana's Commission for Higher Education. He has been a Director and is
President Elect of the American Agricultural Economics Association and Chairman of the
National Public Policy Education Committee. He has twice received the AAEA's
Distinguished Policy Contribution Award as well as its Extension Economics Teaching
Award. He is a member of the American Association for the Advancement of Science, the
International Society for Ecological Economics, and American Society of Agricultural and
Biological Engineers. In a previous life he worked as a horse wrangler and a legal
investigator. Professor Doering teaches The Economic Geography of World Food and
Resources to undergraduates and the Department's research methods class to graduate
students. His recent publications include a book on the 1996 Farm Bill and a book on the
effects of climate change and variability on agricultural production systems. Recent
publications focus on economic linkages driving the response to nitrogen over-
enrichment, the rationale for U. S. agricultural policy, and integrating biomass energy into
existing energy systems.

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Dr. Charles T. Driscoll is the University Professor of Environmental Systems
Engineering at Syracuse University. Dr. Driscoll received his B.S. degree in Civil
Engineering from the University of Maine in 1974, and his M.S. in 1976 and Ph.D. in 1980
in Environmental Engineering from Cornell University. Dr. Driscoll's teaching and
research interests are in the areas of environmental engineering, environmental
chemistry, biogeochemistry and environmental quality modeling. A principal research
focus of Dr. Driscoll's research has been the effects of disturbance on forest, aquatic and
coastal ecosystems, including air pollution (acid rain, mercury), land-use change and
elevated inputs of nutrients and trace metals. Dr. Driscoll uses a variety of research
approaches to study these perturbations, including field investigations, laboratory studies,
long-term field measurements, whole-ecosystem manipulations, and the development
and application of models. Dr. Driscoll has authored or co-authored more than 275 peer-
reviewed articles and has been acknowledged by the Institute for Scientific Information
(ISI) as one of the most highly cited researchers in both engineering and environmental
science. He has received external funding for more than 70 research projects, mostly
obtained from competitive research programs such as the National Science Foundation
and the Environmental Protection Agency. He is currently the principal investigator of the
National Science Foundation's Long-Term Ecological Research project at the Hubbard
Brook Experimental Forest, New Hampshire. In 1984, the National Science Foundation
designated Dr. Driscoll as a Presidential Young Investigator. He has provided expert
testimony to U.S. Congressional and State committees. Dr. Driscoll has served on many
local, national and international committees, including the National Research Council
Panel on Process of Lake Acidification, the Committee of Air Quality Management, and
the Committee on CLEANER and NSF's Environmental Observations.

Dr. Ivan Fernandez is a professor and forest soils scientist at the University of Maine,
Orono. His expertise is in nutrient and metal cycling in forested ecosystems, particularly in
soil biogeochemical responses to ecosystem disturbance. He publishes regularly in
professional journals on a multi-media range of subjects pertaining to forest ecology
including soil biogeochemistry, nutrient cycling, acid deposition and climate change
effects on forests, watershed processes and soil ecology. He has also published
numerous technical reports, book chapters, and a book. He is a member of numerous
professional organizations such as the Society of American Foresters, Soil Science
Society of America, National Association of Environmental Professionals and the Soil and
Water Conservation Society to name a few. He serves as a member of the national
Council of Soil Science Examiners, the Maine Board of Certification for Professional
Geologists and Soil Scientists, and is responsible for oversight of the long-term whole
ecosystem research program at the Bear Brook Watershed in Maine. His research
interests are in atmospheric deposition and climate change effects on forested
ecosystems and watershed processes, as well as the ecological impact of residuals
utilization in forests. Current research projects include studies of long-term watershed
acidification, base cation depletion, nitrogen saturation, municipal residuals utilization in
forests, and the effects of fire and climate on mercury and nitrogen dynamics.

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Ms. Suzanne Fisher is an environmental scientist in the Research and Technology
Applications division at the Tennessee Valley Authority. She holds a B.S. in Ecology and
Evolutionary Biology from the University of Tennessee and a M.S. in Environmental
Health from East Tennessee State University. Her expertise is focused on the
relationships between anthropogenic activities and ecosystem functions and processes
including nitrogen saturation, carbon sequestration in degraded mine lands, acidic
deposition, biogeochemical dynamics in forest ecosystems, and long-term chemical and
growth trends through the application of dendrochemistry. Current research projects
include studies of nitrogen saturation in the southern Appalachians, nitrogen critical loads
in the Great Smoky Mountains National Park, impacts to nitrogen cycling and stream
water quality caused by Hemlock Woolly Adelgid-induced hemlock mortality in Great
Smoky Mountains National Park, and dendrochemical mercury investigations. She has
published in peer-reviewed journals and is a member of professional organizations such
as the Society of Environmental Toxicology and Chemistry, the Soil Science Society of
America, and the Tree Ring Society. Her research is fully supported by the Tennessee
Valley Authority and the Electric Power Research Institute.

Dr. Patrick F. Flynn retired as Vice President of Research for the Cummins Engine
Company, Inc. after thirty years of service. His duties there included: responsibility for the
direction of the corporation's efforts in combustion research and development on diesel
and alternate fueled engines, development and support of engineering computational
capabilities, development and support of corporate emissions test capability (including
product support, certification, and audits, for diesel and alternate fueled engines). The
University of Minnesota granted him a B.S. and M.S. in Agricultural Engineering. He has
an MBA from Indiana University and earned a Ph.D. in Mechanical Engineering with a
Minor, in Physical Metallurgy from the University of Wisconsin. He is a Registered
Professional Engineer in the State of Indiana. Dr. Flynn is a member of the National
Academy of Engineering; he was elected for advances in diesel engine design utilizing
science-based methodology. He is a Fellow of the Society of Automotive Engineers and
the American Society of Mechanical Engineers. He is a two time recipient of the Arch T.
Colwell Merit Award for Outstanding Contribution to Society of Automotive Engineering
Literature and a recipient of the National Society of Professional Engineers' Outstanding
Engineer Award. He has served on many advisory groups. He was a member of the
Board on Army Science and Technology, National Academy of Engineering, of the
National Research Council, Chinese Academy of Engineering, and National Academy of
Engineering Committee study on "Personal Cars And China", and of the Board of
Directors for the Center for Engine Research at the University of Minnesota. He chaired
the National Research Council Committee on Soldier Power/Energy Systems of the
Board on Army Science and Technology, "Meeting the Energy Needs of FUTURE
WARRIORS".

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Dr. James N. Galloway is Professor of Environmental Sciences at the University of
Virginia. Dr. Galloway received his B.A. degree in Chemistry and Biology from Whittier
College in 1966 and the Ph.D. degree in Chemistry from the University of California, San
Diego in 1972. Following a postdoctoral appointment with Gene Likens at Cornell
University, he accepted a position as Assistant Professor of Environmental Sciences at
the University of Virginia in 1976. He served as President of the Bermuda Biological
Station for Research from 1988 to 1995, and as chair of Environmental Sciences,
University of Virginia from 1996 to 2001. He is the chair of the International Nitrogen
Initiative, a program sponsored by SCOPE and IGBP, and is a member of the EPA
Science Advisory Board. In 2002 he was elected a Fellow of the American Association
for the Advancement of Science. His research on biogeochemistry includes the natural
and anthropogenic controls on chemical cycles at the watershed, regional and global
scales. His current research focuses on beneficial and detrimental effects of reactive
nitrogen as it cascades between the atmosphere, terrestrial ecosystems and freshwater
and marine ecosystems.

Dr. Peter M. Groffman is currently a Senior Scientist at the Institute of Ecosystem
Studies in Millbrook, NY; with research interests in ecosystem, landscape and microbial
ecology, with a focus on carbon and nitrogen dynamics. He received his Ph.D. in 1984 in
Ecology from the University of Georgia. Specific recent research efforts include
investigation of; the effects of atmospheric nitrogen deposition on nitrogen gas fluxes
(EPA STAR Grant), nitrate dynamics in riparian buffer zones (USDA NRICGP, EPA),
snow depth as a regulator of soil freezing and nitrogen dynamics (NSF), effects of a
whole watershed calcium addition on soil nitrogen and carbon cycling (NSF), carbon and
nitrogen cycling in urban watersheds and ecosystems (NSF LTER) and the effects of
exotic earthworm invasion on soil nitrogen and carbon cycling (NSF). Groffman was/is a
member of the Steering Committee for the Workshop on Advanced Approaches to
Quantify Denitrification (NSF funded), the U.S. National Committee for Soil Science, the
Hubbard Brook Research Foundation Nitrogen Scientific Working Group, the NOAA Gulf
of Mexico Hypoxia Nutrient Reduction Workgroup, the Working Group on Aquatic
Terrestrial Biogeochemistry at the National Center for Ecological Analysis and Synthesis
(NCEAS), the Working Group on Trace Gas Fluxes at NCEAS, and the Expert Group on
N20 and C02 Emissions from Agricultural Soils, IPCC/Organization for Economic
Cooperation and Development (OECD) Programme on National Greenhouse Gas
Inventories. He was a lead author for the Second (Wetlands) and Third (North America)
Assessment Reports of the Intergovernmental Program on Climate Change (IPCC). He
currently serves on the editorial boards of Ecology and Ecosystem and was chair of the
Soil Ecology section of the Ecological Society of America from 1997 - 98 and the Wetland
Soils Section of the Soil Science Society of America from 2002 - 2003.

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Dr. George R. Hallberg is a principal with The Cadmus Group, Inc., in Watertown,
Massachusetts, providing environmental research, regulatory analysis, and management
services. He currently provides technical, scientific, and management support for USEPA
drinking water programs. He has been involved in a variety of applied research programs
for 30 years, particularly related to water-quality and contaminant occurrence, agriculture
and the environment, environmental monitoring/public health surveillance, and
hydrogeology. He has published more than 150 technical papers on these subjects.
Hallberg has a BA in Geology from Augustana College (1970) and a PhD in Geology from
the University of Iowa (1972). Hallberg was designated a lifetime National Associate of
the National Academies. For the National Academy of Science-National Research
Council's, Water Science and Technology Board, he recently served as the Chair for the
2001 report, Opportunities to Improve the USGS National Water Quality Assessment
Program. He also recently served on the NRC's Committee (2004) on Assessment of
Water Resources Research for the Nation and the Committee (2006) on Managing Coal
Combustion Residues in Mines. He has also served two terms on the NRC's Board on
Agriculture and Natural Resources (1996-2001), and on the Long Range Soil and Water
Conservation Committee (1990-1994), that produced the report Soil and Water Quality:
An Agenda for Agriculture, which received the 1995 Merit Award from the Soil and Water
Conservation Society of America. He has served as a consulting member to USEPA's
Science Advisory Board , on the National Advisory Council For Environmental Policy and
Technology, on the Management Advisory Group for the Office of Water (serving as Chair
for the Nonpoint Source Program Workgroup), and also as a chair for FIFRA Science
Advisory Subpanel for the Office of Pesticide Programs. Other national service has
included: The H. John Heinz III Center for Science, Economics, and the Environment,
Designing a Report Card for the Nation's Ecosystems, Croplands Workgroup (1998-
2002), for the White House Office of Science and Technology Policy; The Gulf of Mexico
Hypoxia Assessment Editorial Board (1999) for the White House OSTP Committee on
Environment and Natural Resources/NOAA; the National Forum on Nonpoint Source
Pollution, as Co-leader for the Education Initiatives Workgroup (1993-1995); Associate
Editor, Water Resources Bulletin. Prior to joining the Cadmus Group, Hallberg was the
Associate Director for the University of Iowa Hygienic Laboratory, the state of Iowa's
public health and environmental laboratory. He was with the State of Iowa, Department of
Natural Resources, from 1972 through 1993, where he served as chief of Environmental
Research and in other positions. He was the program developer for Iowa's Agricultural-
Energy-Environmental Initiative that was awarded USEPA's 1992 Administrator's Award
for Excellence in Pollution Prevention. He was awarded the 1992 Division of Soil
Conservation Award, for outstanding service in soil and water conservation, by the Iowa
State Soil Conservation Committee and Iowa Department of Agriculture and Land
Stewardship. He also directed other projects such as Iowa's Statewide Rural Well- Water
Survey, the Groundwater Vulnerability Mapping Project, and the Nonpoint Source
Monitoring Program. He led the development of the Iowa Model Farm's Demonstration
Project that received a 1991 Environmental Achievement Award from the National
Environmental Awards Council. He was the author of Iowa's Integrated Program for
Energy Conservation and Environmental Protection that won the 1990 Program
Innovation Award from the National Association of State Energy Officials. Hallberg was
an Adjunct Professor at both the University of Iowa and Iowa State University, with
appointments in Preventive Medicine and Environmental Health, Environmental

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Engineering, and Geology. He also served on the Executive Committee for the Center
For Health Effects of Environmental Contamination.

Mr. Keith G. Harrison, M.A., R.S., R.E.H.S., Certified Senior Ecologist, retired on
February 28, 2005 from the state of Michigan after 25 years of service. For the last 12
years of his state career, he held two concurrent positions within state government. From
1992 - 2005, he served as the Executive Director of the Michigan Environmental Science
Board. During the same period, he also served from 1992 - 1997 as the Director of the
Michigan Department of Management and Budget's Environmental Administration
Division and from 1997 - 2005 as the Director of the Michigan Department of
Environmental Quality's Office of Special Environmental Projects. Concurrent with the
two positions above, he also held a third state position from May to October 2001, as the
Acting Director of the Michigan Office of the Great Lakes. Previous state positions held
include two years as Environmental Affairs Manager for the Michigan Department of
Corrections; five years as Senior Environmental Specialist for the Michigan Toxic
Substance Control Commission, and four years as a Public Health Consultant with the
Michigan Department of Public Health. Prior to state service, Mr. Harrison was employed
as a Senior Ecologist with a Michigan environmental engineering firm; Chief
Environmental Planner for a Michigan-Indiana regional planning agency; Environmental
Program Coordinator for a Michigan regional planning agency, and Sanitarian with a
Michigan county health department. Mr. Harrison obtained his Bachelor of Science
degree in 1972 in fisheries and wildlife biology from Michigan State University and a
Master of Arts degree in 1974 in biology (ecology) from Western Michigan University. He
has been licensed since 1978 as a Registered Sanitarian and Registered Environmental
Health Specialist, and, since 1981, has been certified as an Ecologist by the Ecological
Society of America (ESA). In 2004, his certification was upgraded to that of Senior
Ecologist by the ESA. Mr. Harrison's professional research and work have resulted in
over 90 governmental and professional scientific publications addressing a wide variety of
environmental, environmental health, natural history, and natural resources management
topics. He is a member of the Ecological Society of America, Michigan Environmental
Health Association, and Michigan Association of Environmental Professionals. Mr.
Harrison's areas of expertise are terrestrial ecology, environmental science, and
environmental health science. He has served as a consultant to the U.S. Environmental
Protection Agency (USEPA) Science Advisory Board's (SAB) Ecological Processes and
Effect Committee and as an invited ecology expert for the USEPA and U.S General
Accounting Office - National Academy of Sciences for their respective environmental
indicators initiatives. He currently serves on the SAB's Advisory Council on Clean Air
Compliance Analysis' Ecological Effects Subcommittee, which is looking air quality and
the effects of nitrogen deposition. In February 2005, Mr. Harrison started the consulting
firm, KGH Environmental, PLC, and recently completed (2006) a contract with the state of
Michigan to prepare its 2005 biennial report on the state of Michigan's Environment.

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Mr. William Herz is the Vice President of Scientific Programs for The Fertilizer Institute
(TFI). He holds a BS from Cornell University and a MPH from George Washington
University in environmental and occupational health. Mr. Herz, with more than 20 years
of professional experience, has a multidisciplinary background in risk management and
assessment, toxicology, public health, and environmental science. Mr. Herz has chaired
a concurrent session at the 3rd Annual Nitrogen Conference in Nanjing, China, in Oct.,
2004 entitled "NOx, N20, and NH3 Emissions at Global and Regional Scales" and
presented a paper within this session entitled "Nitrogen Leakage and the Agricultural
Component." Recently he chaired a plenary session on N and P trading at the 2nd
Annual Water Quality Trading Conference entitled "Trading with Non-Point Sources." Mr.
Herz works with stakeholders on EPA particulate matters regulations as they relate to
reactive N as well as on the topics of dust suppression/control from agricultural facilities;
and ambient air quality standards for ammonia. On behalf of TFI Mr. Herz has developed
a risk management protocol for assessing the safety and environmental characteristics of
fertilizer products which included elemental assessments of trace metals and
contaminants; risk assessments for consumers and applicators; and a toxicological
product testing program. Mr. Herz has a background in helping agencies prioritize risk
reduction, having worked in this capacity with both the Office of Water and the Office of
Solid Waste and Emergency Response. He has published articles on the topic of risk
reduction prioritization amongst government agencies including "A Process to Reconcile
Priorities Among Agencies Responsible for Environmental Health Risks" and "A Risk
Management Perspective on Fertilizer Safety." Mr. Herz has been involved in the
planning and implementation of the International Nitrogen Initiative (INI) to fund meeting
and research goals. TFI remains active with this group, and co-funded a further effort
with the Scientific Committee on Problems in the Environment (SCOPE) to produce a
book entitled "Agriculture and the Nitrogen Cycle: Assessing the Impacts of Fertilizer Use
on Food Production and the Environment." Relevant recent experience includes serving
the United States Department of Agriculture as an expert reviewer for the National
Research Initiative competitive grants program in agricultural air quality, serving as an
invited expert to comment on the Canadian government's rule on particulate matter,
serving as a reviewer on the Central Region Air Planning Association development of
models for ammonia emissions, and working with the state of Iowa to develop workable
regulations governing agricultural air quality. He also has developed numerous technical
comments on both the feasibility and methodology surrounding agricultural air quality
regulations, especially in regard to ammonia. Mr. Herz serves as an officer of the
American Chemistry Society agricultural subdivision, where he organizes symposia on
topics related to agricultural and environmental quality. William Herz was critical in
enlisting industry support and funding for a number of voluntary regulatory initiatives or
research efforts that further the goal of product stewardship or product safety. For
example, TFI undertook a voluntary initiative under the Environmental Protection
Agency's (EPA) high production volume challenge, and spent over $3 million to generate
detailed toxicological and ecotoxicological data on nitrogen based fertilizers, among
others. In addition, he supported the USDA NRCS meeting on Agriculture and Air Quality
to be held at the Bolger Center in Potomac, Md. Mr. Herz led the development of the TFI-
PPI Product Stewardship brochure, which focuses on the promotion of nutrient
management principles and guidelines. Recently he authored a book chapter entitled

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Fertilizers: Agricultural and Horticultural which appears in the United States Geological
Survey 7th Edition of Industrial Minerals and Rocks.

Dr. Donald L. Hey is Senior Vice President and co-founder of The Wetlands Initiative and
Director of Wetlands Research, Inc., both in Chicago, Illinois. He founded the Des Plaines
River Wetlands Demonstration Project in Lake County, Illinois, and worked to acquire and
restore Hennepin & Hopper Lakes (2,600 acres of marsh and prairie) in Putnam County,
Illinois. He formerly was president of Hey & Associates, an environmental services
consulting firm. He received a B.S. in civil engineering from the University of Missouri at
Rolla, an M.S. in water resources engineering from Kansas University, and a Ph.D. in
environmental engineering from Northwestern University. His research interests focus on
restoration of river and wetland systems and development of low-cost management
strategies for sustaining natural aquatic ecosystems. Dr. Hey has served on a number of
committees and editorial boards: the National Oceanic and Atmospheric Administration,
Committee on Environment and Natural Resources, Gulf of Mexico Hypoxia Assessment
Plan; Technical Proposal Evaluation Committee, Everglades National Park, National Park
Service; the U.S. Environmental Protection Agency Science Advisory Board; the
International Joint Commission, Levels Reference Study; the National Research Council,
Committee on the Restoration of Aquatic Ecosystems; the Illinois Department of
Conservation, Wetland Advisory Council; Ecological Engineering; and, Restoration
Ecology. He is co-author of A Case for Wetland Restoration (Wiley & Sons, 1999) and
numerous articles on flood damage reduction and nutrient control. Recent articles related
to the latter topic include: Nutrient Farming: The business of environmental management,
Ecological Engineering, 24 (2005) and Nutrient Farming and Traditional Removal: an
Economic Comparison, Water Environment Research Foundation, 03-WSM-6CO (2005).

Dr. Robert G. Hoeft was raised on an irrigated grain and livestock farm in east central
Nebraska. He obtained his BSci and MSci from the University of Nebraska and his PhD
in soil science from the University of Wisconsin in 1972. Following graduation he was
employed as an Extension Agronomist at South Dakota State University until 1973 when
he moved to the University of Illinois as an Assistant Professor of Extension and
Research-Soil Fertility. He progressed through the ranks to Professor in 1981. Dr. Hoeft
served as Coordinator of Agronomy Extension from 1977 to 2004 and Associate Head of
the Department of Crop Sciences from 2004-2005. In 2005, he was named Head of the
Department of Crop Sciences. Dr. Hoeft has devoted a major portion of his research
career to projects designed to evaluate factors influencing the efficiency of nutrient use.
His work with nitrification inhibitors provided classical data that allows scientists and crop
producers to make an informed decision on where these products will likely be beneficial.
His work on the effect of excess moisture on nitrogen loss now allows producers to apply
the proper rate of nitrogen knowing that they can utilize climatic data for the specific site
to predict whether loss potential has been great enough to justify supplemental
application after periods of excessive rain. His work on factors affecting immobilization
and mineralization of nitrogen has brought a new perspective to the importance of proper
nitrogen management for optimum crop production while maintaining environmental
quality. Dr. Hoeft has expanded his research program to include work on manure

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management and on factors affecting the potential for phosphorus loss from agricultural
soils. Results of this work have been incorporated into nutrient management plan
modules. He has authored 3 books, 7 book chapters, over 40 scientific journal articles
and well over 200 professional and popular articles. His research programs have clearly
provided a data base for individuals to utilize in designing nitrogen management
programs that will optimize production and minimize the potential for nitrogen to have an
adverse impact on water quality. Dr. Hoeft was the first Editor of the Journal of
Production Agriculture and served as President of the American Society of Agronomy, the
largest agricultural scientific society in the U.S. Dr. Hoeft's research has been funded by
Illinois EPA, Illinois Department of Agriculture, United States Department of Agriculture,
Dow Chemical Company, The Andersons, Central Illinois Power, SKW, Trostberg,
Germany, Illinois Pork Producers, Pioneer Hybrids, Northern Illinois Water, Sohio, Brandt
Chemical, and The Sulphur Institute. He has been named a Fellow in the American
Society of Agronomy and the Soil Science Society of America.

Dr. Richard B. Howarth is Professor of Environmental Studies at Dartmouth College.
Dr. Howarth graduated summa cum laude from the Biology and Society Program at
Cornell (A.B., 1985) and earned an M.S. in Land Resources at the University of
Wisconsin-Madison (1987). He pursued his doctorate at the Energy and Resources
Program at the U.C. Berkeley (Ph.D., 1990), where he specialized in the economics of
natural resources and sustainable development. Dr. Howarth's research program focuses
on issues of energy use, climate change, and ecological conservation, exploring themes
that include: (a) the role of discounting, sustainability, and intergenerational fairness in
evaluating long-term environmental policies; (b) mathematical models of the relationship
between economic growth, the natural environment, and human well-being; (c) the
appropriate role of public policies in promoting energy efficiency and the adoption of
"clean" energy technologies; and (d) the valuation of ecosystem services and the role of
economic, social, and moral values in managing natural systems.

Dr. Robert W. Howarth earned a BA from Amherst College in 1974 and a Ph.D. jointly
from MIT and the Woods Hole Oceanographic Institution in 1979. He is currently the
David R. Aktinson Professor of Ecology & Environmental Biology at Cornell University, a
position he has held since 1993. He is also director of the Agricultural Ecosystems
Program at Cornell, is an adjunct senior scientist at the Ecosystems Center of the Marine
Biological Laboratory in Woods Hole, MA, and represents the State of New York on the
Scientific and Technical Advisory Committee of the Chesapeake Bay Program. He was
the Coordinating Lead Author for the Millennium Assessment for the chapter on societal
responses to nutrient pollution, released in early 2006. From 1993 to 2002, he was co-
chair of the International SCOPE Nitrogen Project, and from 2003-2006 he directed the
North American Nitrogen Center (part of the International Nitrogen Initiative). He is the
President-elect of the Estuarine Research Federation and will serve as President from
2007 to 2009. He is also a member of the American Institute of Biological Sciences, the
American Society of Limnology & Oceanography, and the Ecological Society of America
(where he is a part of the Biogeochemical Cycling Rapid Response Team. In recent
years, Dr. Howarth's research has been supported by the EPA Star program, NSF

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Biocomplexity Program, NOAA's Coastal Ocean Program, USDA/CSREES, Woods Hole
SeaGrant, the Mellon Foundation, and the Hudson River Foundation. Dr. Howarth's
research interests focus on biogeochemistry and ecosystem science, particularly in
coastal marine ecosystems and in large river basins. Detailed interests include the
interactions of element cycles; global and regional nitrogen and phosphorus cycles; the
biotic, physical, and geochemical controls on nitrogen fixation in both aquatic and
terrestrial ecosystems; the influence of land-use, management practices, and climate
change on export of nutrients from land to waters; atmospheric deposition of nitrogen
onto the landscape; the controls and consequences of eutrophication in estuaries;
sediment biogeochemistry, particularly in seagrass ecosystems; environmental
management and the effects of pollutants on aquatic ecosystems; the interactions
between ecosystem processes and community structure; and the application of science to
sustaining the biosphere.

Dr. Jeremy Jones is an Associate Professor of Biology with appointments in the
Department of Biology and Wildlife and the Institute of Arctic Biology at the University of
Alaska Fairbanks. Dr. Jones received his Ph.D. from the Department of Zoology, Arizona
State University (1994), M.S. from the Department of Biology, Virginia Commonwealth
University (1990), and his B.S. from the Department of Biology, San Francisco State
University (1988). Prior to his current appointment, Dr. Jones was an Assistant Professor
in the Department of Biological Sciences, University of Nevada, Las Vegas (1996 - 2000),
and was a Global Change Postdoctoral Fellow in the Environmental Sciences Division at
Oak Ridge National Laboratory (1994 -1996). Dr. Jones' research interests include the
biogeochemistry of nutrients and organic matter in aquatic ecosystems, the watershed
scale fluxes of nitrogen and carbon, and the impacts of environmental change on nutrient
cycling in watersheds and aquatic ecosystems. His research has focused on ecosystems
of the arid southwestern United States, the temperate southeastern United States, and
the Arctic and sub-Arctic of Alaska. Dr. Jones has served on several committees for the
North American Benthological Society, review panels for the National Science
Foundation, and co-edited a book focusing on stream and ground water interactions. He
is a member of the North American Benthological Society, the American Society for
Limnology and Oceanography, and the Ecological Society of America. Dr. Jones'
research has been supported by grants from the National Science Foundation, the
Andrew W. Mellon Foundation, the Department of Energy, National Park Service, and the
Forest Service.

Dr. Dennis R. Keeney is Emeritus Professor, Department of Agronomy; Emeritus
Professor, Department of Agricultural and Biosystems Engineering; Retired, founding
Director of Leopold Center for Sustainable Agriculture, and of the Iowa State Water
Resources Research Institute , Senior Fellow, Institute for Agriculture and Trade Policy,
Minneapolis, MN; Senior Fellow, Council for Agricultural Science and Technology, Ames,
IA; and Senior Fellow, Dept of Soil, Water, and Climate, Univ. of Minnesota, St. Paul. He
was on the faculties of the Departments of Soil Science and Water Chemistry, 1966-1988,
He was awarded a B.S. from Iowa State University in Agronomy, an M.S. from University
of Wisconsin-Madison in Soil Science, and a Ph.D. from Iowa State University in

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Agronomy-Soil Fertility. His interests with respect to nitrogen are at the intersection of
land use, particularly agriculture, and water quality. He has published extensively on
sources and control of non point source nitrogen and on land use and policies to lower
nitrogen loads to waters. He is past president and member of the Soil Science Society of
America and the American Society of Agronomy. He is a member of Soil and Water
Conservation Society, and the Iowa Academy of Science and a fellow of the American
Association for the Advancement of Science. He is past president of the Iowa
Environmental Council and former chair of its Water Quality Committee. He is a member
of the Research Committee of the Walnut Creek National Wildlife Refuge Prairie Learning
Center, the Iowa Risk Assessment Task Force, the Spira/GRACE Advisory Board, the
Water for lowans Board of Directors, the Food and Water Watch Advisory Board, the Blue
Lands Green Waters science team, the Advisory Board of the Iowa State Water
Resources Center, and the Thomas Jefferson Agriculture Institute.

Dr. Richard Kohn is Professor of Animal and Avian Sciences at the University of
Maryland, College Park. He conducts research (75%) and engage in extension education
(25%) focused on mathematical modeling to improve animal feeding and management
(dairy and poultry) and reduce nutrient losses to the environment. He received his B.S.
degree in 1985, M.S. degree in 1987 and Ph.D. in 1998. All degrees were in Animal
Science. His research related to the Integrated Nitrogen Research Committee includes
development of mathematical models of nitrogen flows on dairy farms, and development
and application of software to track nutrient flows on farms. He was recently a member of
the National Academies of Sciences Committee on Air Emissions from Animal Feeding
Operations and coauthored two reports from that committee. He is currently a member of
the Environment Committee of the Federation of Animal Science Societies (FASS). The
Environment Committee has six members representing the 5000 members of FASS. He
is a member of the American Society of Animal Science, and the American Dairy Science
Association.

Dr. Scott F. Korom is Associate Professor in the Department of Geology & Geological
Engineering at the University of North Dakota, Grand Forks, ND. He received a B.S.
(cum laude) and M.S. in Civil Engineering from the University of Akron, and a Ph.D. in
Civil and Environmental Engineering from Utah State University, Logan, Utah. His
dissertation was entitled, Denitrification in the Unconsolidated Deposits of the Heber
Valley Aquifer. His professional interests include: aquifer denitrification, groundwater
remediation, groundwater and groundwater quality modeling. He is a member of the
American Geophysical Union, the American Society of Civil Engineers, the National
Ground Water Association, the Tau Beta Pi National Engineering Honor Society and is a
Registered Professional Engineer in North Dakota. Dr. Korom has served on review
panels for the National Science Foundation, including the National Science Foundation /
Environmental Protection Agency Partnership for Environmental Research. He has
served as a peer referee for the Australian Research Council, Illinois State Water Survey,
Natural Science and Engineering Research Council of Canada, North Dakota State Water
Commission, Water Resources Research Institute of the University of North Carolina, and
several professional journals.

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Dr. JoAnn Slama Lighty has been on the faculty at the University of Utah since 1988.
Presently, she is Director of the Institute for Combustion and Energy Studies (ICES) and
Professor of Chemical Engineering. She stepped down as Associate Dean for Academic
Affairs in the College of Engineering in July 2004 having been in the Dean's Office for 9
years. She received a B.S. and Ph.D. in Chemical Engineering from the University of
Utah. Her dissertation was on the fundamentals of thermal treatment for the cleanup of
contaminated solid wastes. Dr. Lighty's research interests are in the areas of air toxics,
Soot formation and oxidation, combustion-generated aerosols and their characterization;
NOx formation, and biomass combustion. She is currently involved in the Southwest
Consortium for Environmental Research and Policy, the Center for the Simulation of
Accidental Fires and Explosions (C-SAFE), and recently received a National Science
Foundation, Nanoscale Interdisciplinary Research Team (NIRT) award focused on the
formation of soot from diesel engines. She received the SWE Distinguished Engineering
Educator in 2004, Utah Engineering Educator of the Year Award in 2001 and has been on
several national and university committees, including: U.S. EPA's National Advisory
Council for Environmental Policy and Technology, Environmental Technologies
Subcommittee (2004-present), Clean Air Scientific Advisory Committee (CASAC),
Technical Subcommittee for Particle Monitoring (1998-2003), and Science Advisory
Board (SAB), Environmental Engineering Committee (1992-1999); Brown University's
Superfund Basic Research Program, External Advisory Committee (July 2006-present);
Engineering Advisory Council, Brown University (Feb 2004-present); Board of Trustees,
Academy of Math, Engineering, and Science, appointed by Former Governor Leavitt (Oct
2002-July 2005).

Dr. Gary M. Lovett is Senior Scientist at the Institute of Ecosystem Studies. He received
B.S. Biology from Union College and a Ph.D. Dartmouth College, Biology/Plant Ecology.
He is also Adjunct Professor of Biology at the University at Albany (SUNY-Albany) and
the Graduate Faculty in Ecology, Rutgers University. His recent professional activities
include chairing the Steering Committees of the Northeastern Ecosystem Research
Cooperative and the Tenth Cary Conference, "Ecosystem Function in Heterogeneous
Landscapes",; co-organizing the Nature Conservancy Workshop on Air Pollution and
Biodiversity, May 2004; chairing the Gordon Conference on Forested Catchments, 1999-
2001. "Theme: Science and Policy in Watershed Research"; serving as a Panel member
for the U.S. Geological Survey Cooperative Research Program Evaluation, 1999.; being
an Expert Witness before the U.S. House of Representatives Subcommittee on Water
Resources and Environment, 1999; serving as a member of the White House Office of
Science and Technology Policy (OSTP), Integrating the Nation's Environmental
Monitoring and Research Programs: Nutrient Enrichment Team, 1998; serving on the
Advisory Panel for the US EPA, Mountain Acid Deposition Program, 1996-1998 and on
the Peer Review Panel for the US EPA Clean Air Status and Trends Network, 1997

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Dr. Greg Mclsaac is currently an Associate Professor in Natural Resources and
Environmental Sciences at the University of Illinois at Urbana Champaign. He holds a
Ph.D. in Agricultural Engineering from the University of Illinois, a M.S. in Agricultural
Engineering from University of Minnesota, and a B.S. in Chemical Engineering from
University of New Hampshire. His research focuses on the effects of agricultural land
management practices on hydrology, nutrient and sediment transport and water quality.
Dr. Mclsaac teaches courses in watershed hydrology and ecosystem management and
has have served as an Associate Editor for the Journal of Environmental Quality. In
addition, Dr. Mclsaac reviews manuscripts for Journal of American Water Resources
Association, Transactions of the American Society of Agricultural Engineers, Ecosystems
and a variety of other journals. He is a member of the Ecological Society of America, The
American Society of Agronomy, The American Society of Agricultural and Biological
Engineers and the American Water Resources Association.

Dr. William J. Mitsch is Distinguished Professor in the School of Environment and
Natural Resources at The Ohio State University, and Director of the Wilma H.
Schiermeier Olentangy River Wetland Research Park. Dr. Mitsch's research interests
include wetland ecology and biogeochemistry, the creation and restoration of wetlands,
ecosystem modeling and wetland management policy. He is extensively published in the
peer reviewed literature and wrote the textbook Wetlands, now in its 3rd edition (2000).
He is Editor-in-Chief of the journal Ecological Engineering and was founder and first
president of the American Ecological Engineering Society (AEES). Dr. Mitsch received
his Ph.D. in Environmental Engineering Sciences (Systems Ecology) from the University
of Florida in 1975. Prior to his position at Ohio State, he taught at Illinois Institute of
Technology and University of Louisville. In August 2004, Dr. Mitsch
received the 2004 Stockholm Water Prize in Stockholm Sweden from Swedish King Carl
XVI Gustaf for a career in ecological engineering, ecological modelling, and wetland
science and management.

Dr. William Moomaw is Professor of International Environmental Policy and Director of
the Center for International Environment and Resource Policy at Tufts University's
Fletcher School of Law and Diplomacy. He received a BA from Williams College and a
PhD in physical chemistry from Massachusetts Institute of Technology. His research
interests include quantitative indicators of environment and development; sustainable
development; trade and environment; technology and policy implications for climate
change; water and climate change; economics and geochemistry of the nitrogen cycle;
biodiversity; negotiation strategies for environmental agreements. His professional
activities include serving on the Intergovernmental Panel on Climate Change (IPCC). In
this activity has served as Lead Author, 1995 "Industry" and "Industry, Energy and
Transportation: Impacts and Adaptation; Convening Lead Author, IPCC 2001"
Technological and Economic Potential for Emissions Reductions"; Lead Author IPCC
2005 "Introduction", Carbon Dioxide Capture and Storage Special Report; and Lead
Author IPCC 2007 "Energy Supply." He serves on the Board of Directors for the
Consensus Building Institute; Earthwatch Institute, and Clean Air Cool Planet.

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Dr. Arvin Mosier is working as a consultant and is also a Visiting Professor in the
Agricultural and Biological Engineering Department at the University of Florida. He
received a B.S and MS in Chemistry and a Ph.D. in Soil Science from Colorado State
University. His consulting work focuses on linking the carbon and nitrogen cycles to
mitigate agricultural greenhouse gases. His interests at the University of Florida involve
food security, primarily in the developing world. The goal is to provide information to
decision makers, in the agricultural industry or government to make rational decisions
concerning global environmental change and agriculture. Dr. Mosier chaired the
Scientific Committee On Problems in the Environment a part of the International Scientific
Union activity on nitrogen fertilizer, published by Island Press as Volume 65, published in
2004. He was on the International Global Atmospheric Chemistry steering committee
from 1999-2002 and was convener of IGAC's activity on biosphere, atmosphere, trace
gas exchange in 1998. He was managing editor of Nutrient Cycling in Agroecosystems
from 1991 until 2004 and remains on the Journal's editorial committee. He currently
serves as an external advisor for the NitroEurope Integrated Project on Greenhouse
Gases (this is a 5 year integrated nitrogen project that involves approximately 65 research
locations across the European Union). He is also serving as an advisor and research
collaborator for a project with the Faculty of Land and Food Resources, University of
Melbourne, Melbourne, Australia entitled "Improving the efficiency, profitability and
environmental friendliness of nitrogen fertilizers".

Dr. Hans W. Paerl is Kenan Professor of Marine and Environmental Sciences, at the
UNC-Chapel Hill Institute of Marine Sciences, Morehead City, NC. His research includes;
microbial ecology, nutrient cycling and primary production dynamics of aquatic
ecosystems, environmental controls of algal blooms, and assessing the causes and
consequences of man-made and climatic (storms, floods) nutrient enrichment and
hydrologic alterations of inland, estuarine and coastal waters. His recent studies have
identified the importance and ecological impacts of atmospheric nitrogen deposition in
estuarine and coastal environments. Dr. Paerl was recently (Feb. 2003) awarded the G.
Evelyn Hutchinson Award by the American Society of Limnology and Oceanography for
his work in these fields and their application to interdisciplinary research, teaching and
management of aquatic ecosystems. His work plays a central role in coastal water quality
and fisheries issues facing North Carolina and the nation. Dr. Paerl's research is
supported by the National Science Foundation, the North Carolina Sea Grant program,
the NOAA-ECOHAB Program, the North Carolina Dept. of Environment and Natural
Resources (NCDENR) and St. Johns Water Management District of Palatka, FL.

Dr. Gyles. W. Randall directs the soils research program at the Southern Research and
Outreach Center of the University of Minnesota. He was awarded a B.S. and M.S. in Soil
Science from the University of Minnesota and earned his Ph.D. at the University of
Wisconsin. His research interests include the management of nitrogen for agricultural
crops to protect groundwater quality. He is a member of the American Society of
Agronomy (ASA), Soil Science Society of America (SSSA), International Soil Science
Society (ISSS), Soil and Water Conservation Society (SWCS), Council on Agricultural
Science and Technology (CAST).

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Mr. Jack D. Riessen serves as Executive Officer to the Director of the Iowa Department
of Natural Resources. He served for over two decades in Iowa's Water Quality Bureau,
most recently as chief. He holds a B.S. in Agricultural Engineering from Iowa State
University. Mr. Riessen's career has focused on the protection of Iowa's waters including
source and non-point source pollution, the NPDES permitting program, stormwaters, and
the protection of flood plains. Currently he is involved with the developing standards on
nutrients for the protection of surface waters. He has served on a variety of advisory
bodies and is currently a member of the Iowa Water Center Advisory Council.

Dr. Wayne Robarge is Professor - Soil Physical Chemistry in the College of Agriculture
and Life Sciences at North Carolina State University. He holds a Ph.D. in Soil Science
with emphasis on Soil Chemistry and minors in Chemistry and Water Chemistry. His
areas of expertise include: soil physical chemistry/analytical chemistry/environmental
chemistry; fate and transport of inorganic/organic solutes in the environment (impacts of
acidic deposition on forest ecosystems; trace metal chemistry in soil ecosystems; trace
metal content of agronomic fertilizers; chemical analysis, sources, fate of perchlorate in
the environment); impact of pollutants (ammonia, nitric oxides, nitrous oxides,
xenobiotics) from agricultural systems (crop and animal) on air quality; and the deposition
of atmospheric pollutants to agricultural and natural ecosystems. His current research
focuses on fate and transport of ammonia emissions from CAFOs through use of annular
denuder technology, passive samplers, relaxed eddy accumulation and atmospheric
equilibrium models. He is also part of the National Air Emissions Monitoring Study that is
required by the Air Consent Agreement between the EPA and the animal industry in the
United States. Past research activities include the US EPA Mountain Cloud Chemistry
program; USFS Forest Response Program; Rockefeller Foundation funded project on gas
emissions following land-clearing in Amazon basin; US EPA funded study on biogenic
emissions of nitric oxides from row crop agriculture; and a variety of projects funded by
multiple funding sources related to ammonia emissions from CAFOs. He has served on
the following advisory committees: Panel Manager, 2003, USDA National Research
Initiative (NRI) - Air Quality (first panel in this new NRI funding area); Member Ad-Hoc
Committee on Air Emissions from Animal Feeding Operations, National Research
Council/National Academy of Sciences (2001-2003); Member USDA Agricultural Air
Quality Task Force (2000-2002); Member Committee on Worker and Public Safety,
National Pork Board (2002-present); Chair (Fertilizers/Soils sub-division within
Agrochemicals Division) American Chemical Society (2004-2006); Program Organizer
(Fertilizers/Soils sub-division within Agrochemicals Division) American Chemical Society
(2001-2003); Board Representative, Div. S-2 (Soil Chemistry, Soil Science Society of
America (1998-2001); Chair, Div. S-2 (Soil Chemistry), Soil Science Society of America.
Sources of current and recent grant support: U.S.D.A. National Research Initiative, U.S.
EPA, National Pork Board, North Carolina Pork Council, Division of Air Quality, North
Carolina Department of Environmental and Natural Resources, US Forest Service,

Animal and Poultry Waste Management Center, NCSU (evaluation of alternative
technologies for swine waste for reduction in ammonia emissions - funded under
agreement between NC Attorney General's office and Smithfield Foods and Premium

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Foods), and Defense Coastal/Estuarine Research Program (DCERP) at Marine Corp
Base Camp Lejeune, NC, Department of Defense (Research Triangle Institute, RTP, NC
- project manager).

Dr. Donald Scavia is Professor and Research Associate Dean of the University of
Michigan's School of Natural Resources and Environment, Director of the Michigan Sea
Grant program, and interim Director of the Cooperative Institute for Limnology and
Ecosystem Research. His current research, teaching, and service focus on integrating
natural and social sciences in environmental policy contexts through integrated
assessment, ecological modeling, and other decision support tools. His primary research,
supported by the National Science Foundation, the National Oceanic and Atmospheric
Administration, the Department of the Interior, and the State of Michigan, focuses on
modeling and assessing impacts of changes in human-dominated watersheds on
freshwater and marine ecosystems, and he has published on the effects of altered
nitrogen cycles on coastal and estuarine ecosystems. He has also published extensively
on lower food web dynamics, aquatic biogeochemical cycling, and ecosystem modeling.
Dr. Scavia serves on the Science Committee for the NSF Collaborative Large-scale
Engineering Analysis Network for Environmental Research (CLEANER) program, on the
Board of Advisors for the North American Nitrogen Center, and on the Environment
Domain committee of the Key National Indicators Initiative. At UM, he serves on the
Executive Committee for the Erb Institute for Global Sustainable Enterprise and the
Graham Environmental Sustainability Institute. He also served on the Board of Directors
for the International Association for Great Lakes Research (IAGLR) and for the American
Society for Limnology and Oceanography (ASLO), on the BOSC subcommittee reviewing
EPA's STAR and GRO Fellowship programs, and as Associate Editor for Estuaries and
Coasts (ERF) and Frontiers in Ecology and Environment (ESA). Prior to joining the
faculty at the University of Michigan, he was a research scientist and research manager
at NOAA, including serving as Chief Scientist for NOAA's National Ocean Service. Dr.
Scavia received his BS, MS, and PhD degrees in Environmental Engineering from
Rensselaer Polytechnic Institute and the University of Michigan, and is certified as a
Senior Ecologist through the Ecological Society of America.

Dr. Peter Scharf is an associate professor in the Plant Sciences Division at the University
of Missouri, where he chairs the Soil Fertility Working Group. He holds a B.S. from the
University of Wisconsin (Biochemistry, Genetics), an M.S. from Virginia Tech (Agronomy),
and a Ph.D. from Virginia Tech (Crop and Soil Environmental Sciences). His research
focuses on economic and environmental impacts of nitrogen fertilizer management. He is
active in the development of innovative technologies for diagnosing the correct rate of
fertilizer, including aerial and ground-based sensors. Much of this work is done with the
cooperation of farmers and agribusiness people. Dr. Scharf is an 11-year member of
the North Central Regional committee on Predicting Nitrogen Mineralization to Meet Crop
Needs and Protect Water Resources (NC218), was a member of the American Society of
Agronomy's ad hoc committee to consider publication of a society monograph on
Nitrogen and Hypoxia in the Gulf of Mexico, is in his second term as Associate Editor for
the Soil Science Society of America Journal, and is current chair of the Missouri Certified

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Crop Advisory Board. Dr. Scharfs work is supported by EPA, Missouri Fertilizer & Ag
Lime Council, USDA-Natural Resources Conservation Service, Missouri Dept. of
Agriculture, and the Missouri Dept. of Natural Resources.

Dr. James Jay Schauer, Ph.D., PE is Associate Professor in the Department of Civil and
Environmental Engineering, Director of the Water Science and Engineering Laboratory,
Program Director of the Wisconsin State Lab of Hygiene, and Chair of the Air Resource
Management Program at the University of Wisconsin-Madison. The Colorado School of
Mines granted him a B.S. in Chemical and Petroleum Refining Engineering, the
University of California at Berkeley an M.S. in Environmental Engineering, and the
California Institute of Technology a Ph.D. in Environmental Engineering Science. He is a
Registered Professional Engineer in Colorado and Illinois. Dr. Schauer's research
interests relate to the development of a quantitative understanding of the origin of air
pollutants and the impact of these pollutants on human health and the ecosystem, such
that effective control strategies can be developed and designed to mitigate the adverse
effects of air pollution. His research group is developing advanced characterization tools
that can be used to determine detailed chemical, physical, and biological characteristics
of emissions from air pollution sources and atmospheric pollutants. Such tools provide the
basis for air pollution models that can be used to assess the contributions of air pollution
sources to atmospheric concentrations of these pollutants, and provide the basis for the
development of pollution abatements strategies. Dr. Schauer is a recipient of the Health
Effects Institute (HEI) Rosenblith Young Investigator Award and the Haagen-Smit Award
presented by Atmospheric Environment Journal in recognition of his contributions to the
field of atmospheric sciences. He is an Associate Editor, of the Journal of Environmental
Engineering and Science, NRC Canada and serves on the Editorial Advisory Board of
Aerosol Science and Technology (AS&T). He is a member of the American Chemical
Society (ACS), the American Association for Aerosol Research (AAAR), and the Air and
Waste Management Association (A&WMA). He is a Science and Academic Advisor to the
US AID Funded Middle East Regional Cooperation Project, which is a collaborative air
pollution research project that brings together Al Quds University (Palestine), the
Jordanian Society for Sustainable Development (Jordan), and the Arava Institute for
Environmental Studies (Israel).

Dr. Guy Sewell is Professor of Environmental Health Sciences and Robert S. Kerr
Endowed Chair at East Central University, Ada, Oklahoma. B.S. Microbiology, minor in
Chemistry, May 1980, Oklahoma State University. Oklahoma State University granted
him a Ph.D. in Microbiology, with emphasis Biochemistry/Bacterial Physiology. His
dissertation was entitled: Interactions of Polyacrylamides used for Enhanced Oil Recovery
and Reservoir Isolates of the Sulfate-Reducing Bacterium Desulfovibrio. Dr. Sewell is an
internationally recognized expert in the areas of subsurface fate and transport, water
quality and the biotreatment of waste. Dr Sewell has published over 50 papers on topics
such as ecology, environmental cleanup and bioprocesses, and has made scientific
presentations at numerous national and international meetings. Prior to coming to ECU,
Dr. Sewell worked in the environmental services industry and as a research microbiologist
with the U.S. EPA at the Robert S. Kerr Environmental Laboratory in Ada, Oklahoma.

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While at EPA his duties included conducting research on microbial processes in the
subsurface, subsurface ecology, and the development of innovative technologies for the
treatment of hazardous waste. He also served as Acting Branch Chief and as Research
Team Leader for the Biotransformation, Subsurface Ecology, Ecosystems Restoration
and Lake Texoma Research Groups.

Dr. Bryan W. Shaw is an Associate Professor and member of the Center for Agricultural
Air Quality Engineering and Science in the Biological & Agricultural Engineering
Department, Texas A&M University. He received his Bachelor of Science and Master of
Science degrees in Agricultural Engineering from Texas A&M University and his Ph.D. in
Agricultural Engineering from the University of Illinois at Urbana-Champaign. Dr. Shaw
teaches and conducts air quality research on topics including development of accurate
emission factors for feed and grain handling, emissions from cattle feed yards,
development of air pollution dispersion models, and fugitive dust emissions from field
operations. Dr. Shaw recently spent one year working with USDA-NRCS as Special
Assistant to the Chief under an Interagency Personnel Agreement. In this role he
provided national leadership in the development of policies and programs to address
agricultural air quality concerns.

Mr. Paul E. Stacey is Supervising Environmental Analyst with the Connecticut
Department of Environmental Protection's Bureau of Water Management (since 1985).
He oversees agency participation in the Long Island Sound Study (LISS) and Long Island
Sound (LIS) management programs and the state's nonpoint Source Program. Previously
he spent eight years at the Academy of Natural Sciences Applied Ecology Program. Mr.
Stacey received a B.A. in Psychology from the College of the Holy Cross, Worcester, MA
(1972), a B.S. in Wildlife and Fisheries from Utah State University (1974), and an M.S. in
Fisheries Biology from Colorado State University (1977). As a principal state water
quality analyst and manager focusing on cultural eutrophication, Mr. Stacey is well versed
in the study of reactive nitrogen sources; air, watershed and coastal nitrogen dynamics;
environmental effects; and management. He has emphasized a multimedia approach in
these endeavors, linking airshed and watershed sources into comprehensive analyses
and management efforts. Having served on a number of EPA, NOAA and ASIWPCA
workgroups to define and establish policy and criteria for nitrogen, most recently as an
invited participant in an EPA effort to define critical loads of nitrogen and acidifying
compounds, Mr. Stacey is expert in programs and policies related to nitrogen control in an
integrated protocol. Connecticut has implemented the most extensive nitrogen-trading
program in the country, essential to the success of a bi-state management plan (TMDL)
for nitrogen, efforts in which Mr. Stacey has played prominent roles. He is responsible for
formulating Connecticut's risk-based dissolved oxygen criteria, necessary to effective
management of nitrogen enrichment in LIS. Further, his long-standing positions on the
Scientific and Technical Advisory Committee for the LISS and as a technical reviewer for
state and federal research funding programs have involved him in research programs that
have improved nitrogen understanding and control. He is a member of the Estuarine
Research Federation and its Program Advisory Council for ERF 2007; the Water
Environment Federation; and the New England Estuarine Research Society. Mr. Stacey

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has been honored with distinguished service awards from CTDEP and the Governor, and
was a lecturer in the Curtis and Edith Munson Distinguished Lecturer Series at Yale
University. He sits on the New England Governors and Eastern Canadian Premiers Acid
Rain Steering Committee and the Interstate Environmental Commission. He regularly
presents at professional conferences on nitrogen management and the LIS ecosystem
and has produced technical publications on trading, monitoring and atmospheric
deposition of nitrogen including co-editorship of a Coastal and Estuarine Studies volume
for the AGU. In the last five years Mr. Stacey has served on over a dozen advisory
committees including projects for the Water Environment Research Foundation, the
Hubbard Brook Research Foundation, and the Institute of Marine Sciences in Lisbon on
projects related to nitrogen dynamics and management, setting feasible management
goals and defining effective management tools. Mr. Stacey is responsible for extensive
monitoring programs for the LISS and the National Coastal Assessment. He has been
awarded special funding for projects to develop a nutrient watershed model in
Connecticut (completed), to establish nitrogen criteria for the protection of eelgrass beds
(current), and to assess Connecticut's nitrogen trading program and evaluate its potential
for expansion (completed).

Dr. Thomas L. Theis is the Director of the Institute for Environmental Science and Policy,
a cross-disciplinary unit dedicated to promoting collaborative research on the
environment, and Professor of Civil and Materials Engineering at the University of Illinois
at Chicago. He earned his B.S.C.E, M.S.C.E. and Ph.D. at the University of Notre Dame.
His areas of expertise include the mathematical modeling and systems analysis of
environmental processes, the environmental chemistry of trace organic and inorganic
substances, nutrient flows and impacts associated with agricultural systems, interfacial
reactions, subsurface contaminant transport, hazardous waste management, industrial
pollution prevention, and industrial ecology. He has been principal or co-principal
investigator on over fifty funded research projects totaling in excess of ten million dollars,
and has authored or co-authored over one hundred papers in peer reviewed research
journals, books, and reports. He is a member of the USEPA Science Advisory Board,
and is a former editor of the Journal of Environmental Engineering. From 1980-1985 he
was the co-director of the Industrial Waste Elimination Research Center (a collaboration
of Illinois Institute of Technology and University of Notre Dame), one of the first Centers of
Excellence established by the USEPA. In 1989 he was an invited participant on the
United Nations Scientific Committee on Problems in the Environment (SCOPE) Workshop
on Groundwater Contamination, and in 1998 he was invited to by the World Bank to
assist in the development of the first environmental engineering program in Argentina. He
is the founding Principal Investigator of the Environmental Manufacturing Management
Program, one of the Integrative Graduate Education Research and Training (IGERT)
grants of the National Science Foundation.

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Dr. Valerie Thomas is the Anderson Interface Associate Professor in the School of
Industrial and Systems Engineering at the Georgia Institute of Technology, with a joint
appointment in the School of Public Policy. Dr. Thomas received a Ph.D. in theoretical
physics from Cornell University, and a B. A. in physics from Swarthmore College. She
was a post-doctoral Research Fellow at the Department of Engineering and Public Policy
at Carnegie Mellon University. From 1988-2004 she was a Research Scientist at
Princeton University, at the Princeton Environmental Institute and the Center for Energy
and Environmental Studies. In 2004-05 she was the American Physical Society
Congressional Science Fellow. Her expertise is in quantitative approaches to
environmental assessment, and the lifecycle environmental impacts of products and
materials, including metals and electronics. Current research is in the area of industrial
ecology, including energy efficiency, the use of electronics and information technology for
lifecycle management of products, and the environmental impacts of global second-hand
markets. She is a Fellow of the American Physical Society, and a member of the
International Society for Industrial Ecology. She is chair of the 2006 Gordon Research
Conference on Industrial Ecology. She has had recent funding from the US EPA STAR
grants program and the National Science Foundation.

Dr. Stuart B. Weiss is currently an independent consulting scientist bringing scientific
skills and transdisciplinary perspectives to environmental problem solving. He received
both his Ph.D. (1996) and B.S. (1984) in Ecology and Evolutionary Biology at Stanford
University. He has collaborated with industry, regulators, elected officials, conservation
groups, scientists, journalists, landowners, and ranchers (among others) to understand,
communicate, and address impacts of N-deposition on threatened and endangered
species. His areas of expertise and active research include: 1) Impacts of atmospheric N-
deposition on biodiversity, ranging in scale from roadsides to the entire state of California;
2) Mitigation of N-deposition impacts from power plants, highways, and urbanization,
primarily by land acquisitions, research, and adaptive management; precedent-setting
projects that have precipitated the new Santa Clara County Habitat Conservation
Plan/Natural Communities Conservation Plan; 3) Basic research into the N-cascade with
scientific collaborators; 4) Conservation ecology, including population biology, reserve
design, invasive species control, sampling and experimental design, modeling, hands-on
management/restoration, and regulatory issues; 5) Environmental biophysics and
microclimatology, including studies of monarch and checkerspot butterflies, old-growth
forests, and some of California's finest vineyards. Dr. Weiss has actively participated in
the growing network of N-deposition scientists since 1993. He recently authored a report
"Impacts of Nitrogen Deposition on California Ecosystems and Biodiversity" funded by the
California Energy Commission (http://www.energy.ca.gov/pier/final_project_reports/CEC-
500-2005-165.html). His conference participation and professional service include
convening an ongoing nitrogen session at the American Geophysical Union Fall Meeting,
invited attendance at National Center for Atmospheric Research workshop on a North
American N-Science Plan, Air Pollution Workshops, N-eutrophication Symposium, the
National Atmospheric Deposition Program Atmospheric Ammonia Workshop, and
presentations at the 2nd and 3rd International Nitrogen Conferences, Ecological Society
of America, Society for Conservation Biology, as well as numerous academic seminars
and public presentations. His recent grant and contract support include the California
Energy Commission, National Fish and Wildlife Foundation, US Fish and Wildlife Service,

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National Park Service, Calpine Corporation, Waste Management, Inc., World Wildlife
Fund, Land Trust of Santa Clara County, The Nature Conservancy, Santa Clara County
Open Space Authority, San Mateo County Parks and Recreation Foundation, UC Santa
Barbara, Los Alamos National Laboratory, and private donors.

Dr. Mark Williams is a Research Fellow at the Institute of Arctic and Alpine Research
and Professor of Geography, at the University of Colorado. He received his Ph.D. in
Biological Sciences from the University of California at Santa Barbara in 1991. His
research interests are the processes that determine the hydrochemistry and
biogeochemistry of high-elevation basins, including the storage and release of solutes
from the snowpack, biogeochemical modifications of snowpack runoff, nutrient cycling,
and hydrologic pathways and residence time. He has conducted research on ecosystem
responses to atmospheric deposition of nitrogen and other variables over the last 20
years. He is considered a leading authority on the dynamics of nitrogen cycling in
seasonally snow covered ecosystems. Currently he is the PI on the Niwot Ridge Long-
Term Ecological Research (LTER) program, the only high-elevation site in the LTER
network. The Niwot Ridge LTER program focuses on ecosystem responses to increases
in atmospheric deposition of inorganic nitrogen in wetfall and dryfall. He has served on
numerous national committees, including chairing the Cryosphere Focus group for the
American Geophysical Union. He was a Co-I on the initial grant to start the Consortium of
Universities for the Advancement of Hydrologic Sciences (CUAHSI) and currently serves
on the Hydrologic Instrumentation Facilities standing committee for CUAHSI. Mark is on
the executive committee of the Rocky Mountain Cooperative Ecosystem Study Unit and
on the science advisory board for the National Park Service Inventory and Management
project for the Rocky Mountain region, among many other service activities.

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