Gasoline

Price has the right idea with his bicycle.

From greenuniversity.net:

A gallon of gasoline weighs 6.2 pounds, consisting mostly of carbon, plus a small amount of hydrogen and a few impurities. Through combustion each carbon atom combines with two atoms of heavier oxygen atoms, resulting in 19.8 pounds of carbon dioxide in the atmosphere.

How much prehistoric plant matter did it take to make that gallon of gas? About 196,000 pounds, or as much as is found in one-acre of wheat. Americans burn up about 131 billion gallons of gas every year, or the equivalent of 25 quadrillion pounds of prehistoric biomass. Since 1751, our species has used the equivalent from all types of fossil fuels of about 13,300 years of biomass production by all plants on earth.


THAT IS INSANE!