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A crack in the natural-gas bridge

机译：天然气桥的裂缝

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摘要

水力压裂技术的发展导致了作为一种能源来使用的天然气的迅速增长。一些证据表明,天然气使用量的增长也许会导致温室气体排放压力的减轻,从而也会导致气候变化程度的减轻。五个能源—气候模拟研究小组之间的这项合作研究显示,在天然气供应量充足的情况下,其消耗量的增加对气候变化实际上影响很小或没有影响。作者提出,天然气产量和使用的增加既不能在今后几十年代替一项气候政策,对人为造成的排放问题也不会构成一大新的复杂性因素。%Burning fossil fuels such as coal, gas and oil produces more than 80% of the world's energy and more than 90% of global carbon dioxide emissions. Slowing and ultimately stopping climate change depends on decarbonization - the transformation of the global energy system into one that does not dump CO_2 into the atmosphere. Because gas-fired power plants emit roughly half as much CO_2 per unit of energy produced as coal-fired plants, the greatly expanded gas supplies promised by new hydraulic fracturing (fracking) methods have been celebrated as a means of cutting emissions. Progressive substitution of gas for coal and oil can thus decarbonize the energy sector and serve as a 'bridge' to a more distant future when carbon-free, renewable-energy technologies are more affordable and reliable than they are now. In this issue, McJeon et al. (page 482) uncover a serious crack in the gas bridge: in the absence of new climate policies, increased supplies of natural gas may have little effect on CO_2 emissions and could actually delay decarbonization of the global energy system.
机译：水力压裂技术的发展导致了作为一种能源来使用的天然气的迅速增长。一些证据表明,天然气使用量的增长也许会导致温室气体排放压力的减轻,从而也会导致气候变化程度的减轻。五个能源—气候模拟研究小组之间的这项合作研究显示,在天然气供应量充足的情况下,其消耗量的增加对气候变化实际上影响很小或没有影响。作者提出,天然气产量和使用的增加既不能在今后几十年代替一项气候政策,对人为造成的排放问题也不会构成一大新的复杂性因素。%Burning fossil fuels such as coal, gas and oil produces more than 80% of the world's energy and more than 90% of global carbon dioxide emissions. Slowing and ultimately stopping climate change depends on decarbonization - the transformation of the global energy system into one that does not dump CO_2 into the atmosphere. Because gas-fired power plants emit roughly half as much CO_2 per unit of energy produced as coal-fired plants, the greatly expanded gas supplies promised by new hydraulic fracturing (fracking) methods have been celebrated as a means of cutting emissions. Progressive substitution of gas for coal and oil can thus decarbonize the energy sector and serve as a 'bridge' to a more distant future when carbon-free, renewable-energy technologies are more affordable and reliable than they are now. In this issue, McJeon et al. (page 482) uncover a serious crack in the gas bridge: in the absence of new climate policies, increased supplies of natural gas may have little effect on CO_2 emissions and could actually delay decarbonization of the global energy system.

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  • 来源
    《Nature》 |2014年第7523期|436-437B1|共3页
  • 作者

    STEVEN J. DAVIS; CHRISTINE SHEARER;

  • 作者单位

    Department of Earth System Science, university of California, Irvine, Irvine, California 92697, USA;

    Department of Earth System Science, university of California, Irvine, Irvine, California 92697, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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