1 Halting Hypoxia, Civil Engineering, June 2008.
2 Differences in Phosphorus and Nitrogen Delivery to The Gulf of Mexico from the Mississippi River Basin, Richard B. Alexander et al, Environ. Sci. Technol., 42 (3), 822-830, 2008. 10.1021/es0716103
3 Missing the Boat: Midwest Farm Drainage and Gulf of Mexico Hypoxia, Daniel R. Petrolia and Prasanna H. Gowda Review of Agricultural Economics-Volume 28, Number 2-Pages 240-253.
4 In Situ Bioreactors and Deep Drain-Pipe Installation to Reduce Nitrate Losses in Artificially Drained Fields, Dan B. Jaynes et al, J. Environ. Qual. 37:429-436 (2008).
5 Stream denitrification across biomes and its response to anthropogenic nitrate loading, Patrick J. Mulholland et al, Nature, Vol 452| 13 March 2008| doi:10.1038/nature06686.
6 Economic Analysis Of Wetland Restoration Along The Illinois River, Tony Prato And Donald Hey, Journal Of The American Water Resources Association, Feb. 2006.
Megan Anderson, project assistant; Terry Devitt, editor; S.V. Medaris, designer/illustrator; David Tenenbaum, feature writer; Amy Toburen, content development executive