Fossil fuel (oil) is a finite resource which has caused harm to humans and the environment such as oil spills, contaminated groundwater, global warming, and even war. This finite resource will eventually be depleted. The consumption of energy in the United States is double what the country produces and energy use is expected to increase at a rate of 6 to 8% annually by 2010.
Alternatives to fossil fuel include traditional renewables like solar energy, wind energy, hydroelectric power, biomass energy, hydrogen and fuel cells, and geothermal power. Also, new energy sources are being researched such as cold fusion, zero point energy, magnetics, and gravitics. However, not all of these alternatives to fossil fuel have been fully developed and most importantly not all of them are environmentally friendly. There are three sources of “green” energy that are available for common use today. They are solar, wind, and geothermal energy.
U.S. Department of the Interior
Greening of the Interior