Carbon Emission Notes
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Understanding Automobile Emissions
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2013Reference
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USA Gasoline Consumption135,415,000,000
http://www.eia.gov/energyexplained/index.cfm?page=gasoline_use
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% of Gasoline Consumption by Light Vehicles95%
http://www.eia.gov/energyexplained/index.cfm?page=gasoline_use
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Gasoline Consumption by Light Vehicles128,644,250,000
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Number of Light Vehicles210,000,000
http://www.eia.gov/energyexplained/index.cfm?page=gasoline_use
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Average Miles Travelled11,850
http://www.eia.gov/energyexplained/index.cfm?page=gasoline_use
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Average Fuel Economy (Miles / Gallon)21.5
http://www.eia.gov/energyexplained/index.cfm?page=gasoline_use
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(Cars & Trucks) Share of US Carbon Emissions20%
http://www.ucsusa.org/our-work/clean-vehicles/car-emissions-and-global-warming#.VJNycsAY
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Pounds of Carbon Emission per Gallon 25
http://www.ucsusa.org/our-work/clean-vehicles/car-emissions-and-global-warming#.VJNycsAY
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Pounds of Carbon Emissions per Light Vehicle13,779
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in kg6,250
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Total Carbon Emissions for Light Vehicles in the USA (Pounds) 3,216,106,250,000
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in kg1,458,800,000,000
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in megatons1,458,800
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Number of Cars "taken off the roads" if every American had one meat-free meal a week
5,000,000
http://www.carbonoffsetsdaily.com/news-channels/usa/vegan-diet-reduces-carbon-footprint-11061.htm
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Number of Americans (2010)308,745,531
http://en.wikipedia.org/wiki/Demographics_of_the_United_States
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Number of Vegetarian Meals if every American had one meat-free meal a week
16,054,767,612
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Number of "Meals per Car"3,211
<- based on Carbon Offset Daily assumption
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Carbon Emissions of 5 million vehicles (in pounds)68,895,348,837
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in kg31,250,400,000
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in megatons31250
<- Carbon Emission Reduction (Megatons) if every American ate just ONE more meat-free meal per week
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Understanding Airline Meals
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2011Reference
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Number of international passengers1,110,000,000
http://www.iata.org/pressroom/pr/pages/2012-12-06-01.aspx
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Number of Domestic Passengers1,720,000,000
http://www.iata.org/pressroom/pr/pages/2012-12-06-01.aspx
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Total Passengers2,830,000,000
http://www.iata.org/pressroom/pr/pages/2012-12-06-01.aspx
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Number of Airline Meals (assuming 1 meal for every 2 flights, on average)1,415,000,000
<- this is a "thumbsuck", will need to be verified
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Equivalent Number of "cars taken off the roads"440679
<- number of meals divided by "meals per car"
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Reduction in Carbon Emissions (in lb) (if meals were vegetarian)6,072,147,599
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in kg2,754,280,000
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in megatons2754
<- Carbon Emission Reduction (Megatons) if Airlines served vegetarian meals only
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Understanding Meat
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Meat Consumption per American per Day (in ounces)8
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in kg0.226796
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over 365 days (in kg)82.78054
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CO2-emissions (kg of CO2 per kg of food)
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Beef13.3
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Raw Sausages8
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Ham (Pork)4.8
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Poeltry3.5
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Pork3.25
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Average6.57
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CO2 Emissions from meat per American (per year)543.87
<- A car is 6250 kg per year
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"Meals per Car" equivalent4194.49
<- 6250/(543.87/365) * Note, this is assuming 1x 8 ounce meat meal per day, it does NOT take into account consumption of different types of meat. This number will be lower if skewed towards red meat, lower if skewed towards poultry/pork.
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Annual CO2 Emissions from meat for all Americans167,916,860,086
This is ~19 times less than from vehicles
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- in megatons167917
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