Johnny heath corpus christi Affordable Hydrogen Fuel Cells News A fifth of car fuel-efficiency savings are eroded by increased driving

Around a fifth of the energy-saving benefits of fuel-efficient cars are eroded because people end up driving them more, according to a study into British motoring habits over the last 40 years.

from Fuel Cells News -- ScienceDaily http://ift.tt/1PsEzAV
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