Compressed Natural Gas (CNG) shows great potential, as it is an environmentally friendly fuel. Compared to gasoline, CNG combustion produces about 25% less carbon dioxide (CO2). Furthermore, CNG has a great potential for reducing untreated emissions. The exhaust gas is odorless and contains no particles.
CNG also has an advantage when being prepared as a fuel: it needs no additives and its production does without complicated refining processes. Another advantage is that CNG vehicles preserve the world's petroleum resources. Methane, CNG's major component, can also be produced from organic substances. This closes the CO2 cycle and longterm availability is increased even further.
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