Changes

'''Alternative energy''' refers to energy sources that do not come from fossil fuels.<ref>[http://www.mms.gov/offshore/RenewableEnergy/Definitions.htm U.S. Department of the Interior Offshore Energy and Minerals Management - Renewable Energy Program Definitions]</ref> This term is often used interchangeably with '''renewable energy''', which refers to an energy source that is naturally replenished, such as wind, sunlight, rain, tides, and [[geothermal energy|geothermal]] heat.   

'''Alternative energy''' refers to energy sources that do not come from [[fossil fuel]]s.<ref>[http://www.mms.gov/offshore/RenewableEnergy/Definitions.htm U.S. Department of the Interior Offshore Energy and Minerals Management - Renewable Energy Program Definitions]</ref> This term is often used interchangeably with '''[[renewable energy]]''', which refers to an energy source that is naturally replenished, such as [[wind energy]], [[solar energy]], [[hydroelectric]], rain, tides, and [[geothermal energy|geothermal]] heat.   

==Economic issues==

==Economic issues==

==References==

==References==

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==Other sources of information==

==Other sources of information==