By Donn Dears:
Worldwide jet fuel consumption in 2012 was nearly 2 billion barrels.
Based on forecast growth of miles flown by the airline industry, and a 30% improvement in engine efficiency, nearly 116 billion gallons of jet fuel will be needed annually by 2030.
The fact is, there is insufficient feedstock, whether it be trees, garbage, grease, algae, or whatever, to produce sufficient biofuel to replace jet fuel made from oil.
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