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Article/Press Release (1)
Book (1)
Book Chapter (7)
Computer program (1)
Journal Article (12)
Presentation (34)
Proceedings (2)
Report (1)
Reference Type Citation Progress Report Year Document Sources
Article/Press Release Billen G, Garnier J, Swaney D. Some highlights of the workshop on integrated budgeting of nitrogen fluxes in regional watersheds: linking atmospheric, terrestrial, aquatic and coastal interactions. Land-Ocean Interactions in the Coastal Zone INPRINT 2007;1:7-11. R830882 (Final)
Book Martinelli LA, Howarth RW, eds. Nitrogen Cycling in the Americas: Natural and Anthropogenic Influences and Controls. Dordrecht, The Netherlands: Kluwer Academic Publishers, 2006, 274 pp. R830882 (Final)
Book Chapter Boyer EW, Howarth RW, Galloway JN, Dentener FJ, Cleveland C, Asner GP, Greene P, Vorosmarty C. Current nitrogen inputs to world regions. In: Mosier A, Syers JK, Freney JR, eds. Agriculture and the Nitrogen Cycle: Assessing the Impacts of Fertilizer Use on Food Production and the Environment. Washington, DC: Island Press, 2004, pp. 221-230. R830882 (Final)
Book Chapter Boyer EW, Howarth RW. Nitrogen fluxes from rivers to the coastal oceans. In: Capone DG, Bronk DA, Mulholland MR, Carpenter EJ, eds. Nitrogen in the Marine Environment, 2nd edition. New York, NY: Academic Press, 2008, pp. 1565-1587. R830882 (Final)
Book Chapter Howarth RW. Coastal ecosystems. In: White JC, ed. Acid Rain: Are the Problems Solved? American Fisheries Society, Trends in Fisheries and Management 2. Bethesda, MD: American Fisheries Society, 2003, pp. 65-74. R830882 (Final)
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Book Chapter Howarth RW, Marino R, Swaney DP, Boyer EW. Wastewater and watershed influences on primary productivity and oxygen dynamics in the lower Hudson River estuary. In: Levinton JS, Waldman JR, eds. The Hudson River Estuary. Cambridge, MA: Cambridge University Press, 2006, pp. 121-139. R830882 (Final)
Book Chapter Howarth RW. Atmospheric deposition and nitrogen pollution in coastal marine ecosystems. In: Visgilio GR, Whitelaw DM, eds. Acid in the Environment: Lessons Learned and Future Prospects. New York, NY: Springer, 2007, pp. 97-116. R830882 (Final)
Book Chapter Howarth RW. How important is atmospheric deposition as a source of nitrogen to coastal marine ecosystems in the northeastern United States? In: Desbonnet A, Costa-Pierce BA, eds. Science for Ecosystem-Based Management:Narragansett Bay in the 21st Century. New York, NY: Springer, 2008, pp. 47-65. R830882 (Final)
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Book Chapter Howarth R, Ramakrishna K, Choi E, Elmgren R, Martinelli L, Mendoza A, Moomaw W, Palm C, Roy R, Scholes M, Zhao-Liang Z. Nutrient management. In: Chopra KR, ed. Ecosystems and Human Well-Being: Policy Responses. Findings of the Responses Working Group, Millenium Ecosystem Assessment Series Volume 3. Washington, DC: Island Press, 2005, pp. 295-311. R830882 (Final)
Computer program Hong B, Swaney DP. Regional Nutrient Management (ReNuMa) Model, User’s Manual, Version 1.0. Ithica, NY: College of Agriculture and Life Sciences, Cornell University, 2007. R830882 (Final)
Journal Article Boyer EW, Howarth RW, Galloway JN, Dentener FJ, Green PA, Vorosmarty CJ. Riverine nitrogen export from the continents to the coasts. Global Biogeochemical Cycles 2006;20:GB1S91, doi:10.1029/2005GB002537. R830882 (Final)
Journal Article David MB, McIsaac GF, Howarth RW, Goodale CL, Drinkwater LE. Fertilizer: complex issue calls for informed debate. Nature 2004;427(6970):99. R830882 (Final)
Journal Article Filoso S, Martinelli LA, Howarth RW, Boyer EW, Dentener F. Human activities changing the nitrogen cycle in Brazil. Biogeochemistry 2006;79(1-2):61-89. R830882 (Final)
Journal Article Galloway JN, Aber JD, Erisman JW, Seitzinger SP, Howarth RW, Cowling EB, Cosby BJ. The nitrogen cascade. BioScience 2003;53(4):341-356. R830882 (Final)
Journal Article Galloway JN, Dentener FJ, Capone DG, Boyer EW, Howarth RW, Seitzinger SP, Asner GP, Cleveland CC, Green PA, Holland EA, Karl DM, Michaels AF, Porter JH, Townsend AR, Voosmarty CJ. Nitrogen cycles: past, present, and future. Biogeochemistry 2004;70(2):153-226. R830882 (Final)
Journal Article Howarth RW. The development of policy approaches for reducing nitrogen pollution to coastal waters of the USA. Science in China Series C: Life Sciences 2005;48(S1):791-806. R830882 (Final)
Journal Article Howarth RW, Swaney DP, Boyer EW, Marino R, Jaworski N, Goodale C. The influence of climate on average nitrogen export from large watersheds in the Northeastern United States. Biogeochemistry 2006;79(1-2):163-186. R830882 (2004)
R830882 (Final)
Journal Article Martinelli LA, Howarth RW, Cuevas E, Filoso S, Austin AT, Donoso L, Huszar V, Keeney D, Lara LL, Llerena C, McIssac G, Medina E, Ortiz-Zayas J, Scavia D, Schindler DW, Soto D, Townsend A. Sources of reactive nitrogen affecting ecosystems in Latin America and the Caribbean: current trends and future perspectives. Biogeochemistry 2006;79(1-2):3-24. R830882 (Final)
Journal Article Morth C-M, Humborg C, Eriksson H, Danielsson A, Medina MR, Lofgren S, Swaney DP, Rahm L. Modeling riverine nutrient transport to the Baltic Sea: a large-scale approach. Ambio 2007;36(2-3):124-133. R830882 (Final)
Journal Article Scavia D, Justic D, Bierman Jr. VJ. Reducing hypoxia in the Gulf of Mexico: advice from three models. Estuaries and Coasts 2004;27(3):419-425. R830882 (Final)
Journal Article Smedberg E, Morth C-M, Swaney DP, Humborg C. Modeling hydrology and silicon-carbon interactions in taiga and tundra biomes from a landscape perspective:implications for global warming feedbacks. Global Biogeochemical Cycles 2006;20:GB2014, doi:10.1029/2005GB002567. R830882 (2004)
R830882 (Final)
Journal Article Swaney DP, Scavia D, Howarth RW, Marino RM. Estuarine classification and response to nitrogen loading:insights from simple ecological models. Estuarine, Coastal and Shelf Science 2008;77(2):253-263. R830882 (Final)
Presentation Boyer EW. Atmospheric deposition. Presented at the Annual Conference of the Universities Council on Water Resources, Washington, DC, August 1, 2003. R830882 (2003)
R830882 (Final)
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Presentation Boyer EW, Howarth RW, Galloway JN. Riverine nitrogen export from the worlds watersheds. Presented at the 17th Biennial Conference of the Estuarine Research Federation, Seattle, WA, September 14-18, 2003. R830882 (2003)
R830882 (Final)
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Presentation Howarth RW. The need for a nationally consistent nutrient input-output information system. Presented at the Annual Conference of the Universities Council on Water Resources, Washington, DC, August 1, 2003. R830882 (2003)
R830882 (Final)
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Presentation Howarth RW. Nitrogen pollution in coastal waters: a national perspective. Presented at the Science and Policy of Coastal Eutrophication Lecture Series, Yale University, New Haven, CT, December 2, 2003. R830882 (Final)
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Presentation Howarth RW. Human acceleration of the nitrogen cycle: drivers, consequences, and steps toward solution. Presented at the IWA Specialty Symposium on Strong Nitrogenous and Agro-Wastewater, Seoul, Korea, June 11-13, 2003. R830882 (Final)
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Presentation Howarth RW, Marino R, Boyer EW, Swaney DP. Potential consequences of climate change on delivery of nutrients to estuaries. Presented at the 17th Biennial Conference of the Estuarine Research Federation, Seattle, WA, September 14-18, 2003. R830882 (2003)
R830882 (Final)
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Presentation Howarth RW. Nitrogen pollution in coastal waters: too much of a good thing. Presented to the House Oceans Caucus and the House Committee on Science, Washington, DC, September 24, 2003. R830882 (Final)
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Presentation Howarth RW. Human alteration of the nitrogen cycle at regional scales: causes, consequences, and steps towards solutions. Presented at the University of Illinois-Urbana-Champaign, Urbana, IL, December 3, 2004. R830882 (Final)
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Presentation Howarth RW. The sources of nitrogen pollution. Presented at the North-South Basin Summit, New Orleans, LA, February 4, 2004. R830882 (Final)
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Presentation Howarth RW. Nitrogen pollution from acid rain is a major driver of eutrophication in coastal marine ecosystems. Presented at Acid in the Environment: Lessons Learned and Future Prospects, Goodwin-Niering Center, Connecticut College, New London, CT, April 1, 2005. R830882 (Final)
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Presentation Howarth RW. Towards an understanding of sources, sinks, and fluxes of nitrogen from large watersheds. Presented at the Marine Biological Laboratory, Woods Hole, MA, August 9, 2005. R830882 (Final)
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Presentation Howarth RW. Sources of nitrogen and the influence of climate on nitrogen delivery to Chesapeake Bay. Presented to the Chesapeake Bay Foundation, Annapolis, MD, December 12, 2005. R830882 (Final)
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Presentation Howarth RW, Swaney DP, Marino RM, Bettez N, Boyer EW. Impacts on nitrogen delivery to Chesapeake Bay. Presented at the Chesapeake Bay Symposium, AAAS Meeting, Washington, DC, February 20, 2005 (invited). R830882 (2004)
R830882 (Final)
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Presentation Howarth RW. Nitrogen sources and fluxes in large watersheds and regions: the SCOPE N project approach. Presented at the MARE Workshop on Large Scale Modeling of Nutrient Fluxes in Watersheds -- Implications for Management, Sigtuna, Sweden, January 17-19, 2005 (invited). R830882 (2004)
R830882 (Final)
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Presentation Howarth RW. Coastal nitrogen pollution: sources, trends, and effects at global and regional scales. Presented at the GEOHAB Annual Meeting, Baltimore, MD, March 7, 2005. R830882 (2004)
R830882 (Final)
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Presentation Howarth RW, Swaney D, Boyer EW, Marino R, Jaworski N, Goodale C. The effect of climate change and climate variation on long-term delivery of nitrogen to estuaries. Presented at the 18th Biennial Conference of the Estuarine Research Federation, Norfolk, VA, October 15-20, 2005. R830882 (Final)
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Presentation Howarth RW. Nitrogen pollution and coastal marine ecosystems. Presented at the National Water Program's Nitrogen Symposium, San Antonio, TX, February 8, 2006. R830882 (Final)
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Presentation Howarth RW. Human alteration of the nitrogen cycle in large river basins. Presented at the International Conference on Rivers and Civilization, La Crosse, WI, June 28, 2006. R830882 (Final)
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Presentation Howarth RW. Extent, impacts, and causes of nitrogen pollution. Presented at the Briefing for the White House Office of Science and Technology Policy, Washington, DC, November 3, 2006. R830882 (Final)
Presentation Howarth RW. How important is near-source deposition of nitrogen from vehicle emission in the Northeastern US? Presented at the NADP Technical Meeting, Norfolk, VA, October 25, 2006. R830882 (Final)
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Presentation Howarth RW. Atmospheric sources of nitrogen to the Bay Watershed. Presented at the Briefing to the Chesapeake Bay Commission, Strasburg, PA, September 8, 2006. R830882 (Final)
Presentation Howarth RW. The impacts of agriculture on water quality (testimony on nonpoint source pollution in a hearing of the House Committee on Transportation and Infrastructure). Presented to the U.S. House of Representatives, Washington, DC, April 19, 2007. R830882 (Final)
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Presentation Howarth RW. Climate change and coastal eutrophication: the influences of freshwater discharge on river basin nitrogen delivery and on estuarine sensitivity. Presented at the Joint Meeting of the Atlantic Estuarine Research Society and the Southeast Estuarine Society, Pine Knolls, NC, March 16, 2007. R828009 (Final)
R830882 (Final)
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Presentation Howarth RW. Human and climate influences on nitrogen fluxes: insights from comparative analysis at large spatial scales. Presented at the Binghamton University Watershed Management and Science Conference, Binghamton, NY, May 21-22, 2007. R830882 (Final)
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Presentation Swaney DP, Howarth RW, Boyer E. ReNuMa: a regional scale nutrient loading model for management. Poster presented at the 17th Biennial Conference of the Estuarine Research Federation, Seattle, WA. September 14-18, 2003. R830882 (2003)
R830882 (Final)
Presentation Swaney DP, Howarth RW, Marino RM, Scavia D, Alber M, Boyer EW. Toward a model-based system of estuarine classification. Poster presented at the 2004 Summer Meeting of the American Society of Limnology and Oceanography, Savannah, GA, June 13-18, 2004. R830882 (2003)
R830882 (Final)
Presentation Swaney DP. Linking statistical and semi-empirical modeling approaches for watershed-scale nutrient fluxes. Presented at the Institute of Applied Environmental Research (ITM), Stockholm University, Stockholm, Sweden, March 24, 2004 (invited). R830882 (2003)
R830882 (Final)
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Presentation Swaney DP. Water quality and nutrient fluxes. Presented to the Fen River Management Committee, TaiYuan, China, August 27, 2005 (invited). R830882 (Final)
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Presentation Swaney DP. How to cut some corners without cheating nature (What is really important in drainage basin modelling?). Presented at the MARE Workshop on Large Scale Modeling of Nutrient Fluxes in Watersheds--Implications for Management, Sigtuna, Sweden, January 17-19, 2005 (invited). R830882 (2004)
R830882 (Final)
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Presentation Swaney DP, Howarth RW, Galford AE, Boyer EW, Goodale CL, Marino RM. Modelling discharge and nitrogen fluxes from large watersheds in the northeastern United States. Poster presented at the 2005 Summer Meeting of the American Society of Limnology and Oceanography, Santiago de Compostela, Spain, June 19-24, 2005. R830882 (2004)
R830882 (Final)
Presentation Swaney DP, Howarth RW, Galford AE, Marino RM, Boyer EW. Latitudinal and temporal changes in discharge and nitrogen fluxes from large watersheds in the Northeastern United States: an application of ReNuMa. Poster presented at the 18th Biennial Conference of the Estuarine Research Federation, Norfolk, VA. October 17-21, 2005. R830882 (Final)
Presentation Swaney DP. Water quality and nutrient fluxes. Presented to the Ministry of Water Resources, Beijing, China, September 1, 2005 (invited). R830882 (Final)
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Presentation Swaney DP. Water quality and nutrient fluxes. Presented to the South-North Water Diversion Project, Beijing, China, September 2, 2005 (invited). R830882 (Final)
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Presentation Swaney DP. The Baltic Sea: biogeochemical cycles and their management. Presented at the LOICZ/UNEP Biogeochemical Budgets of Estuarine and Coastal Systems: Management Interventions Workshop, University of Queensland, Brisbane, Australia, January 30, 2006 (invited). R830882 (Final)
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Proceedings Howarth RW. Human acceleration of the nitrogen cycle: drivers, consequences, and steps toward solution. In: Choi E, Yun Z, eds. Selected Proceedings of the 6th IWA Specialty Symposium on Strong Nitrogenous and Agro-Wastewater Volume 1. Seoul, Korea, June 11-13, 2003, pp. 3-12. R830882 (2003)
R830882 (Final)
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Proceedings Schaefer SC, Alber M. Trends in agricultural sources of nitrogen in the Altamaha River watershed. In: Hatcher KJ, ed. Proceedings of the 2005 Georgia Water Resources Conference, Athens, GA, April 25-27, 2005. R830882 (2004)
R830882 (Final)
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Report Howarth R, Rielinger DM. Nitrogen from the atmosphere: understanding and reducing a major cause of degradation in our coastal waters. Science and Policy Bulletin #8, Waquoit Bay National Estuarine Research Reserve, NOAA, Waquoit, MA, 2003. R830882 (Final)

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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