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'''Natural gas''' is a [[petroleum]] product consisting of about 70% [[methane]]. The rest is made up of [[ethane]] (15%) and other [[hydrocarbon|hydrocarbons]].<ref>http://scifun.chem.wisc.edu/chemweek/methane/methane.html</ref> It is naturally oderless, so odor is added to make a leak detectible.

'''Natural gas''' is a [[petroleum]] product consisting of about 70% [[methane]]. The rest is made up of [[ethane]] (15%) and other [[hydrocarbon|hydrocarbons]].<ref>http://scifun.chem.wisc.edu/chemweek/methane/methane.html</ref> It is naturally oderless, so odor is added to make a leak detectible.

Natural gas is considered cleaner than [[coal]] or oil, as it produces less [[pollution]] and [[carbon dioxide]] for the same amount of energy.

While neither coal, petroleum, nor natural gas are indeed substantial contributors to [[pollution]], natural gas produces less than its alternatives. As such, it is especially useful in urban environments (e.g., in fueling buses) where local concentrations of airborne pollutants can cause certain health issues.

==References==

==References==

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[[Category:Organic Chemistry]]

[[Category:Organic Chemistry]]