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http://www.treehugger.com/files/2009/05/...
Warren Buffets comments about rail made me curious enough to look this up. State-of-the-art Trucks Approach Rail's Efficiency Numbers State-of-the-art trucks can begin to approach the ton-miles per gallon of trains (350+ ton-miles for trucks vs. 400 to 450 ton-miles for rail). RMI's 2008 peer-reviewed analysis, based on tested science, found a combination of improved aerodynamics, low rolling resisitance tires, and more efficient engines could more than double the ton-mileage of the average class 8 truck from 130 ton-mile per gallon to 275 ton-mile/gallon. http://www.treehugger.com/files/2009/05/... http://www.treehugger.com/files/2009/03/... http://www.treehugger.com/files/2009/04/... What is greener is often surprising. Rating :
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