| http://www.w3.org/ns/prov#value | - Initially, the US Air Force is using fuels synthesised from coal and natural gas, resources with which the USA is well endowed, and sourced from commercial suppliers able to field the necessary conversion processes.Such use will, however, prepare the way for plant-based biofuels, as well as other biofuels derived from biomass sources including food and agricultural waste, lumber from timber and fo
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