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Unformatted text preview: everyone. • We have 5% of the world’s population, but use 25% of world’s petroleum • Decrease gasoline consumption by 20% in 10 years o How? o We have the lowest fuel economy at 25 mpg just for cars. Japan = 45 mpg o 8 of top 10 fuel efficient 2005 vehicles are Japanese • Ethanol o It’s a good idea, but corn takes a lot of energy to process o If we took every single kernel of corn, it would only be about 20-30% of our automobile fuels o We’re better off burning petroleum o How much water to make a kilogram (2.2 lbs) of corn? Takes 400 gallons to make a kilogram of corn. That’s a lot of water o How much water to make a kilogram of beef? 1900 gallons...
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This note was uploaded on 03/30/2008 for the course GEOS 1024 taught by Professor Meschreiber during the Spring '08 term at Virginia Tech.
- Spring '08