Planes, trains pound automobiles in transit lifecycle study

June 9th, 2009


Passenger transportation accounts for roughly 20 percent of the US’ annual energy use, but it tends to get considered in only the most simplistic terms: miles per gallon, the figure that will be used to calculate the US fleet’s new efficiency standards . But cars don’t simply appear, ready to drive, in their owner’s garage, and building the road and service infrastructure that makes them a useful commodity can add significant energy …

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