Conclusion
Natural gas – fossil energy

Both an abundant energy resource and a transportation fuel, natural gas offers physico-chemical characteristics that make it a fuel with very high potential for energy diversification and the reduction of CO₂ emissions.

Variations in fuel composition are a challenge to overcome in vehicle applications. Although the available control systems are sufficiently robust to overcome these variations (albeit to a limited extent), they nevertheless have a direct influence on the amount of energy stored on board the vehicle, and hence its range. The use of LNG offers interesting prospects.

The strong emergence of shale gas, the need to diversify transport fuels and the normative constraints in terms of pollutant emissions, CO₂ emissions and consumption are restoring interest in natural...