Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years
Green Car Congress
MARCH 6, 2013
As a consequence of the changes in vehicle fuel economy, vehicle distance travelled, and vehicle load, the total amount of fuel used increased by 53% (from 303 to 463 billion liters). According to the 2011 American Community Survey by the US Census Bureau, 79.9% —Sivak 2013.
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