来自《耶鲁大学开放课程：环境政治与法律 第2集 第2集》

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  Well, you rely on very complex computer models to do that,
  你得靠非常复杂的计算机模型
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  so that you have to faith in those who are doing the
  所以你得相信做那些推测的人
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  projection and the quality of the analysis.
  和那些分析的质量
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  So that this problem can be kind of capsulized in the idea
  所以这个问题可以节略为这种想法
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  that costs are often relatively well known,
  成本通常相对明了
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  and they can be projected with relative precision over the
  可以通过短期内的相对精度推测出来
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  short term compared to the harms,
  而那些危害
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  the environmental and health harms,
  环境危害和健康危害则很不同
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  that are highly uncertain.
  因为它们具有高度不确定性
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  And they're often projected way out into the future with a
  它们在未来的
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  really fuzzy image of how they're going to fall out
  发展很模糊
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  differently on different groups.
  对不同的群体来说也不一样