compressed natural gas

Also known as: CNG

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Last updated

June 24, 2026

Quick Summary

Compressed natural gas (CNG) is natural gas that has been compressed to a high pressure. It is primarily used as a cleaner-burning alternative fuel for vehicles, including buses and commercial fleets. While it emits less pollution than traditional fuels, it still releases the greenhouse gas carbon dioxide. Natural gas itself is a significant fuel source for electricity generation and industrial, domestic, and commercial uses. It also serves as a feedstock for various chemical products, such as carbon black, ammonia, and methanol. Natural gas is transported primarily through extensive pipeline systems, with international trade also occurring in the form of liquefied natural gas (LNG).12

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automobile
Fuel
Vehicle fleets fueled by natural gas have been in operation for several years. Carbon monoxide and particulate emissions are reduced by 65 to 90 percent. Natural-gas fuel tanks must be four times larger than gasoline tanks for equivalent vehicles to have the same driving range. This compromises cargo capacity.
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Vehicle fleets fueled by natural gas have been in operation for several years. Carbon monoxide and particulate emissions are reduced by 65 to 90 percent. Natural-gas fuel tanks must be four times larger than gasoline tanks for equivalent vehicles to have the same driving range. This compromises cargo capacity.
Read More