LIFECYCLE ASSESMENTS: METHODOLOGY & RESULTS

LIFECYCLE ASSESMENTS: METHODOLOGY & RESULTS . Meat Eaters guide : METHODOLOGY Table of Contents Acknowledgements.. 4. Introduction.. 5. A. LCA Boundaries and Functional Unit .. 5. B. Apportionment of GHGs to food versus non-food products (co-product allocation).. 7. C. Modeling Agricultural Processes: Data and Emissions Factors.. 7. 1. Key Inputs and Emission Outputs.. 7. 2. Activity Data and Criteria for Selection of Production Systems.. 9. 3. Data Sources for Calculating Emissions from Each Stage of Production.. 10. 4. Model Testing, Validation, Uncertainty and Variability.. 17. D. Modeling Emissions from Meat, Dairy and Egg Production and Consumption.. 21. 1. Beef Production.. 24. 2. Lamb Production.. 27. 3. Pork Production.. 29. 4. Poultry (Broiler Chicken and Turkey).. 30. 5. Dairy (Cheese) .. 33. 6. Eggs .. 36. 7. Farmed Salmon.. 37. 8. Canned Tuna.. 38. E. Modeling Emissions from Feedstock and Crop Production.. 40. 1. General Production and Modeling Details.. 40. 2. Specific Modeling Details for Feedstock Production.

6 Environmental Working Group Meat Eaters Guide: Methodology 2011 Meat Eaters Guide: Methodology of food production and consumption (cradle to grave), as well as the GHGs associated with the pro-duction of the amount of a given product that is necessary – given the sizable waste factor – to yield 1 kg of consumed, edible food.3

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