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Exhibit A <br /> Summary of information from Green Cities California's Master Environmental Assessment on <br /> Single -Use and Reusable Bags comparing environmental impacts and costs of different types of bags <br /> available at point of sale: <br /> Type of Bag Environmental Impacts Cost per Bag Recycled <br /> Litter particularly small size and persistence of $0.02 0.05 <br /> Single Use plastic resin. Eaten by and harms marine life. (2x if made with 5% <br /> Plastic Bags recycled materials) <br /> Takes 1 years to several centuries to degrade. <br /> Production creates more greenhouse gas $0.15 0.25 <br /> Single Use emissions, atmospheric acidification, water (holding 4x volume o <br /> Paper Bags consumption, and ozone production. of plastic bag) 60-80% <br /> Decomposes in landfills. <br /> Manufacturing creates more greenhouse gas <br /> emissions and more water consumption. Can take <br /> Single Use months to years to biodegrade; and some only <br /> Biodegradable under compost conditions. $0.12 0.30 No data <br /> Bags <br /> Causes contamination if mixed with plastic bags for <br /> recycling. <br /> $1.00 to 10.00 <br /> Expected to have fewest environmental impacts if depending on <br /> Reusable reused several times but no confirming data. material No data <br /> Bags polyethylene plastic <br /> No life -cycle data. to 100% cotton <br /> Y \Plastic Bags Foam Food Conlainlers \energy and enviro May 26 2010 CLEAN 5- 19.doc <br /> Page 9 of 9 <br />