Some critics have suggested that the production of corn ethanol uses up more fossil fuel energy than the biofuel energy it eventually produces.

一些批评人士指出，玉米乙醇的生产所消耗的化石燃料能源比它最终生产的生物燃料能源还要多。

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It is a great symbol of what new technologies allow us to do without fossil fuel energy.

这可真是一个伟大的标志——没有矿物燃料能源，新科技照样使我们遨游蓝天。

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Worldwide food production requires around 30% of the total soil available, 20% of fossil fuel energy and a major part of the fresh water flow3.

世界粮食生产大致需要30%全球土地，20%化石能源和大部分的淡水流量。

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He said the UK needed a mix of renewables, new nuclear and fossil fuel energy as "a large slice of our current generating capacity shuts down".

BBC: Wylfa among locations chosen for new nuclear stations

The costs of development and production of fossil fuel energy have been underwritten with our tax dollars to the benefit of a few traditional energy companies.

FORBES: Government Subsidies: Silent Killer Of Renewable Energy

Two well-known cynics, David Pimentel of Cornell and Tad Patzek of UC, Berkeley, calculate that producing a gallon of corn ethanol consumes 29% more fossil fuel energy than the ethanol displaces.

FORBES: Temperance