We wish to estimate the burdens associated with eating ONE peanut butter and jelly sandwich. We assume that we only need the peanut butter and bread for making the sandwich. We consider that the processes to make the sandwich look something like this:

Use the LCA matrix method we learned in class to calculate the environmental impacts of eating one peanut butter jelly sandwich: a) Define a technical matrix A and a demand vector f; b) Calculate the scaling matrix s; c) Define an environmental matrix B and calculating environmental impacts g

Water, 10L Secd, 1 kg 10 kWh fertilizer, 12 kg yeast, Energy water, energy 190 L 100 kWh Wheat farm Flour Bread mill bakery 8 kg Overland 16 kg 1 kg runoir, Air particulates, Air particulates, wash waters 20 L wash waters 7 L water 110 L Water, 35 L Supermarket Home kitchen Secd, 0.5 kg fertilizer, 8 kg water, energy 75 L 40 kWh Peanut butter and jelly sandwich manufacturing cnergy 10 kWh 120 kg sandwiches Peanut farm Peanut butter factory Recycle jar 20 kg peautbutter Wash waters 100 L Solid wastes 30 kg Overland runoff, 5 kg 20 kg peanuts Solid wastes, 7 kg wash waters 16 L cating 1000 pbj sandwiches Consumer Water, 10L Secd, 1 kg 10 kWh fertilizer, 12 kg yeast, Energy water, energy 190 L 100 kWh Wheat farm Flour Bread mill bakery 8 kg Overland 16 kg 1 kg runoir, Air particulates, Air particulates, wash waters 20 L wash waters 7 L water 110 L Water, 35 L Supermarket Home kitchen Secd, 0.5 kg fertilizer, 8 kg water, energy 75 L 40 kWh Peanut butter and jelly sandwich manufacturing cnergy 10 kWh 120 kg sandwiches Peanut farm Peanut butter factory Recycle jar 20 kg peautbutter Wash waters 100 L Solid wastes 30 kg Overland runoff, 5 kg 20 kg peanuts Solid wastes, 7 kg wash waters 16 L cating 1000 pbj sandwiches Consumer