Compressed Natural Gas (CNG) is a substitute for gasoline, diesel or propane fuel. It is cleaner and safer to use as it diffuses easily into the surroundings if leaked. However, burning it does release a few greenhouse gases in the air. CNG is used in traditional gasoline internal combustion engine cars that have been converted into bi-fuel vehicles.

Related Societies: European Wind Energy Association, Global Wind Energy Council, World Wind Energy Association, World Council for Renewable Energy, Geothermal Energy Association, Geothermal Resources Council, Iceland Geothermal. World Bioenergy Association