The importance of natural gas as a world fuel

In recent years, natural gas (NG) is the fastest growing primary energy source in the world. NG is widely available, and it is the cleanest burning petroleum based fuel. The global market for NG is much smaller than for oil because gas transport is difficult and costly due to relatively low energy content in relation to volume. NG uses industrial, residential, electric generation, commercial and transportation sectors. NG is used across all sectors in varying amounts. CO2 emission of NG is lower than all other petroleum derivated fuels which it makes engines favorable also in terms of the greenhouse effect. Very positive contribution of NG on the environmental pollution must also be considered in economical aspects.