"In addition to paying $1,000 less for gas over the course of each year (an Energy Department Web site, http://fueleconomy.gov, says the savings would be closer to $1,600) with your new Toyota Prius instead of your 2005 Ford Five Hundred, you will also be using 10 fewer barrels of oil per year." "Every 100 people who switch to more fuel-efficient cars will save 1,000 barrels of oil per year and put 500 tons less carbon dioxide into the air per year." Letter to the Editor-Washington Post-5/29/08 Two Kinds of Green in Fuel Efficiency
