It can be extracted without burning a fossil fuel such as coal, gas, or oil.

它在采掘过程中无须燃烧如煤炭，煤气或石油这类矿石燃料。

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Our known fossil fuel reserves are soaring. New finds of coal, natural gas, oil, tar sands, and oil shale keep growing, not declining.

已知的矿石燃料储备猛涨；不断有新的煤矿、天然气、石油、焦油砂和油页岩被发现；人口数量也在增长。

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The U. S. meanwhile sits on largely untapped fossil fuel resources, including coal, natural gas and oil.

而美国则拥有很大程度上尚未开发的化石燃料资源，包括煤，天然气和石油。

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According to Greenwire (April 14, 2010), McCarthy gave assurances best available control technology standards for major GHG emitters would require only efficiency upgrades, not fuel switching from coal to gas.

FORBES: Move up http://i.forbesimg.com t Move down

The report insists that, in hand with a combination of energy efficiency and fuel-switching measures, this growth in electricity production would be enough to supplant all fossil fuel use (coal, gas and oil), including that for transport and space-heating.

FORBES: Could Australia Go Carbon Neutral By 2020?

The additional nuclear power plants would also have the advantage of being less vulnerable to fuel price changes than coal or gas-fired generation, helping to enhance the security of electricity supplies.

BBC: World risks 'dirty' energy future