Energy security is a recognised global concern that can only become more acute in the future, as population growth and rising living standards create higher demand. Security of supply of transportation fuels is just one element of the energy security picture.
Political unrest, supply disruptions, and other actions, such as the recent hijacking by pirates of the Sirius Star crude oil carrier (with its two million barrels of oil) increases the concerns of nations dependent on oil imports to meet a substantial part of their transport fuel requirements.
This is just one factor contributing to the possible development of alternative transport fuel sources. Coal is one of these alternative sources.
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