Unfortunately, compressed natural gas is not actually a green alternative fuel. CNG-powered vehicles are just as bad for the environment as their petrol or diesel counterparts.

Compressed natural gas (CNG) is promoted as a cleaner fuel alternative, but also comes with risks to the climate and health.

Compressed natural gas (CNG) is natural gas that has been compressed to less than one per cent of its volume. The gas is compressed when it is stored at very high pressures.