Meat Eaters Guide: Methodology - Environmental Working Group

production: 1944 compared with 2007.” Journal of Animal Science 87, no. 6: 2160-2167. Academic Search
Complete, EBSCOhost (accessed Jan. 25, 2011).
59. Due to rounding errors, the calculations for post-farmgate emissions vary slightly from the post-farmgate
emissions in the Calculation for Total Overall Greenhouse Gas Emissions from Cheese Production and
Consumption.
60. Due to rounding errors, the calculations for post-farmgate emissions vary slightly from the post-farmgate
emissions in the Calculation for Total Overall Greenhouse Gas Emissions from Egg Production and Consumption
61. Input data (not emission values) were based on the inputs reported in: N. Pelletier, et al, “Not All Salmon
Are Created Equal: Life Cycle Assessment (LCA) of Global Salmon Farming Systems”, Environ. Sci. Technol.
2009 43, 8730–8736; and Filleting and freezing of fish: LCA Food Database (http://www.lcafood.dk/
processes/industry/filletingfish.htm)
62. Due to rounding errors, the calculations for post-farmgate emissions vary slightly from the post-farmgate
emissions in the Calculation for Total Overall Greenhouse Gas Emissions from Salmon Production and
Consumption
63. Input data is provided by: A. Hospido, et al, “Life cycle environmental impacts of Spanish tuna fisheries”,
Fisheries Research (76) 2005.
64. Personal communication with Rich Pirog, co-author of “Comparative Life Cycle Environmental Impacts of
Three Beef Production Strategies in the Upper Midwestern United States,” Agricultural Systems 103, 2010.
65. Production Data is from: “Comparative Life Cycle Environmental Impacts of Three Beef Production Strategies
in the Upper Midwestern United States,” Agricultural Systems 103, 2010.
66. USDA average inputs from S. Kim and B. Dale, “Cumulative Energy and Global Warming Impact from the
Production of Biomass for Biobased Products”, Journal of Industrial Ecology, Volume 7, Number 3–4, 2004.
67. *Weighted by area harvested in each state (AR, IL, IN, IA, KS, KY, LA, MD, MI, MN, MS, MO, NE, NC, ND,
OH, SD, TN, VA, WI) Source: USDA, National Agricultural Statistics Service (NASS), 2005; USDA, Economic
Research Service (ERS) (a); USDA, ERS (b); and USDA, NASS, 2003.
68. See blog post- on this topic: Modeling soil nitrous oxide emissions for legumes
69. Yang and Cai, “The effect of growing soybean (Glycine max. L.) on N2O emission from soil” Soil Biology &
Biochemistry 37 (2005) 1205–1209; Ciampitti and Ciarlo, “Nitrous oxide emissions from soil during soybean
(Glycine max (L.) Merrill] crop phenological stages and stubbles decomposition period”, Biol Fertil Soils
(2008) 44:581–588.
Environmental Working Group Meat Eaters Guide: Methodology 2011 53