When you wake up in any city in America you hear the roar of hundreds or even thousands of internal combustion engines. There are over 200 million licensed drivers in the US who annually each burn an average of 800 gallons of fuel to go a total of over 3 trillion miles. We seem to have forgotten that we have legs. The only walking many people do is to and from their car. Even many of the people who realize the critical importance of exercise get in there car to drive to the gym. To make matters worse the top selling auto in the US for the last 32 years is the Ford F series pickup truck and last year three out of the top five selling autos in America were pickup trucks that get less than 18 mpg. This may explain how America with only 4% of the world population burns about 25% of the oil consumed in the entire world.
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