Meat Eaters Guide: Methodology - Environmental Working Group

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Meat Eaters Guide: Methodology Table 9. Greenhouse Gas Emissions from Pork Consumption (post-farmgate) Emission Source kg of CO 2 e per pound of consumed pork Processing 1.52 Domestic Transport 0.38 Refrigeration (retail) 0.11 Home Cooking 1.64 Waste Disposal 0.16 Total 3.81 Calculation for Total Overall Greenhouse Gas Emissions from Pork Production and Consumption c. Sources of GHG Emissions A swine farm operation emits greenhouse gases primarily from manure management and fuel combustion; swine generate small amounts of methane during digestion relative to ruminant animals. A third of pork’s overall emissions can be attributed to post-farmgate emissions. Processing (including freezing and packaging) and cooking each account for roughly 13 percent of pork’s total GHG emissions, followed by waste disposal (4 percent), transport (3 percent) and retail energy use/refrigeration (less than 1 percent). 53 4. Poultry (Broiler Chicken and Turkey) The life-cycle analysis for chicken is based on a large-scale confined broiler production operation in British Columbia, with 50,000 birds per cycle producing 98,794 kg of broiler sales. 54 Due to lack of available data, the analysis did not consider more than one chicken site 55 . The model for turkey was based on input data for a small-scale turkey farm in Pennsylvania 56 that produces three 1,000-bird flocks per year. Broiler chicken and turkey production systems involve young hatchery-born chicks raised in a confined poultry feed mill. a. Cradle-to-Farmgate Production and Modeling Details for Chicken and Turkey • Chicks and turkeys are fed a commercial feed ration consisting of corn, soybean meal and fishmeal. • Energy used at the farm, hatchery and poultry and turkey feed mills includes diesel, electricity 30 Environmental Working Group Meat Eaters Guide: Methodology 2011
and natural gas. Water is excluded due to lack of data. • Chicken slaughter weight is 6 lbs 57 • Turkey slaughter weight is 15 lbs for hens and 30 lbs for toms. Table 10. Greenhouse Gas Emissions from Broiler Chicken Production (at farmgate) Broiler Chicken Production System kg of CO 2 E per pound of edible chicken British Columbia 2.33 Table 11. Greenhouse Gas Emissions from Broiler Chicken Consumption (post-farmgate) Emission Source kg of CO 2 e per kg of consumed chicken Processing 1.66 Domestic Transport 0.32 Refrigeration (retail) 0.08 Home Cooking 1.17 Waste Disposal 0.07 Total 3.30 Calculation for Total Overall Greenhouse Gas Emissions from Chicken Production and Consumption Table 12. Greenhouse Gas Emissions from Turkey Production (at farmgate) Turkey Production System kg of CO 2 e per kg of edible turkey Pennsylvania 3.41 Table 13. Greenhouse Gas Emission from Turkey Consumption (post-farmgate) Emission Source kg of CO 2 e per kg of consumed turkey Processing 1.83 Domestic Transport 0.42 Refrigeration (retail) 0.11 Home Cooking 1.44 Waste 0.21 Total 4.01* 58 Environmental Working Group Meat Eaters Guide: Methodology 2011 31
Page 1 and 2: LIFECYCLE ASSESMENTS: METHODOLOGY &
Page 3 and 4: Tables Table 1 . Sources of Primary
Page 5 and 6: By: Kari Hamerschlag, EWG Senior An
Page 7 and 8: UK government by the UK’s nationa
Page 9 and 10: Maturing animal (during grazing and
Page 11 and 12: a)US Life-Cycle Inventory (LCI) Dat
Page 13 and 14: d. Feed Production The four main fe
Page 15 and 16: equired to maintain the product at
Page 17 and 18: used packaging materials to waste d
Page 19 and 20: Table 2. Validation of EWG LCA GHG
Page 21 and 22: d. Sensitivity Analysis: Each crop
Page 23 and 24: Figure 1. Full Lifecycle Assessment
Page 25 and 26: Confined finishing (feedlot) stage:
Page 27 and 28: Post- farmgate emissions constitute
Page 29: a kg of lamb. Processing (including
Page 33 and 34: In contrast to beef, according to t
Page 35 and 36: Table 19. Greenhouse Gas Emission f
Page 37 and 38: Similar to poultry operations, GHG
Page 39 and 40: Table 25. Greenhouse Gas Emissions
Page 41 and 42: Table 27. Iowa Corn Production Syst
Page 43 and 44: Soybean meal Production Input Detai
Page 45 and 46: Crop Animal Feed: Corn Animal Feed:
Page 47 and 48: 3. Sources of Emissions of Plant Pr
Page 49 and 50: 17. Fertilizer production is modele
Page 51 and 52: proved grazing systems. Since the m
Page 53 and 54: production: 1944 compared with 2007
Page 55 and 56: ANNEX A: Activity Data Sources •
Page 57 and 58: Natural Cheese Yogurt Tofu (convent
Page 59 and 60: Orchardgrass Corn Corn Silage Annex
Page 61 and 62: Assumptions and Data: 1. Virtually
Page 63: Lamb Ratios Fresh: (90% x 51.5%) +

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