1Farms and Farmland, 2012 Census of Agriculture Highlights, U.S. Department of Agriculture, National Agriculture Statistics Service, September, 2014.
2USDA Economic Research Service, U.S. Bioenergy Statistics, Table 5 (corn supply) and Table 6 (soybean oil supply), for 2015/2016 crop year.
3World Wildlife Fund, 2016 Plowprint Report, documents the loss of grasslands on the Great Plains in the U.S. and south-central Canada.
4Redlin, Brad, The 2012 Farm Bill: Stewardship, Prosperity and Fairness, Izaak Walton League of America, June 2012.
5Congressional Research Service, Previewing a 2018 Farm Bill, March 15, 2017. The estimated spending cited is based on Congressional Budget Office estimates of actual spending (fiscals year 2014-2016) and projected spending (2017-2018), and represents a $28 billion reduction from the $489 billion spending estimated at the time the bill was passed.
6Johnson, Renee, and Monke, Jim, What is the Farm Bill? Congressional Research Service, February, 2017, provides Congressional Budget Office projections for Farm Bill spending.
7Wyant, Sarah, Lesson #3: Regional Divides Make Writing a Farm Bill More of a Gamble, AgriPulse, Feb. 26, 2017.
8Johnson, Renee, and Monke, Jim, What is the Farm Bill? Congressional Research Service, February, 2017.
9Aussenberg, Randy Alison and Colello, Kirsten, Domestic Food Assistance: Summary of Programs, Congressional Research Service, January, 2017.
10Miller, Leah et al, Clean Water: Your Right to Know, Izaak Walton League of America, 2016.
11Morrison, Jim, How Much is Clean Water Worth? National Wildlife, February 1, 2005.
12Dahl, Thomas, Wetlands Loss Since the Revolution, National Wetlands Newsletter, U.S. Fish and Wildlife Service, November/December, 1990.
13U.S. Fish & Wildlife Service, Status and Trends of Wetlands in the Conterminous United States, 2004-2009, which says the U.S. saw a net reduction of more than 62,000 acres of wetlands from 2004 to 2009.
14Dahl, T.E., Status and Trends of Prairie Wetlands in the United States 1997 to 2009, U.S. Fish & Wildlife Service.
15NRCS: Wetland Conservation Provisions in the Prairie Pothole Region, USDA Office of Inspector General, January, 2017.
16USDA Natural Resources Conservation Service, Wetlands Reserve Program (WRP), WRP Cumulative Agreement Data by State and Fiscal Year.
17USDA Natural Resources Conservation Service, ACEP Wetlands Reserve Easements by State.