A study coming out in the Proceedings of the National Academy of Science found that in most poor countries, higher temperatures are more than 90% likely to have resulted in a fall in economic output, compared to a world without global warming.

发表在《美国国家科学院院刊》的一项研究发现：与不存在全球变暖的世界相比，大多数贫穷国家的经济产量有超过九成的可能性会因温度升高而下降。

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Their paper appears in the Proceedings of the National Academy of Science.

关于此问题的论文也在美国国家科学院汇刊上发表了。

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This study was published in Proceedings of the National Academy of science.

这项研究发表在《美国国家科学研究院学报》上。

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The president called for a greater emphasis on math and science education in a speech to the National Academy of Sciences in April.

VOA: standard.2009.11.24

And now it appears that the National Academy of Science is growing concerned, as well.

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The research is published in the Proceedings of the National Academy of Science.

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It is this opinion that Dr Nettle is attacking in his paper in the Proceedings of the National Academy of Science.

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