It is true that our world is heavily dependent on oil and are concerns and disagreements as to there is a debate about how much oil remains in the ground and how much of that oil we will actually be able to recover before we reach the peak of oil production. Oil is such a critical resource to our economy and way of life that we should be better prepared for any possible unplanned break to its supply. (Turk, J. 2014)

This past decade has seen a growing chorus of energy analysts has warned of the approach of peak oil, when the global rate of petroleum extraction will reach its maximum and begin its inevitable decline. The biggest peak happened in the United States in 1970, when America produced 9.5 million barrels per day of oil, the current figure is less than 6 mbd. At one time the
United States was the world's top oil-exporting nation; but today America is the world's top importer of oil. (Heinberg, R. 2014)

One alternative to oil would be the use of geothermal energy which is a heat derived below the earth’s surface which can be utilized to produce clean, renewable energy. This essential, clean energy resource supplies renewable power and emits little or no greenhouse gases while requiring a small environmental footprint to develop. (DOE, 2012).
Another would be the use of ethanol which is a renewable fuel made from corn and other plant materials. The use of ethanol is now widespread and almost all gasoline in the U.S. contains ethanol in a low-level blend. Ethanol is also available as E85, a high-level ethanol blend for use in flexible fuel vehicles.

The carbon dioxide released when ethanol is burned is balanced by the carbon dioxide captured when the crops are grown to make ethanol. This differs from petroleum, which is made from plants that grew millions of years ago. On a life cycle analysis basis, corn-based ethanol