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On excessively hot days, there are more likely to be fatal car accidents and food safety problems, and police officers and government food inspectors tend to do less of their duties, according to a study published in the Proceedings of the National Academy of Sciences. 根据发表在《美国国家科学院院刊》上的一项研究表明，在过度炎热的天气里，更容易发生致命的车祸和食品安全问题，而且警察和政府食品检查人员在这样的天气履行职责时往往也没有平日认真。 The Massachusetts Institute of Technology scientists, who analyzed data from across the United States, suggest that if the climate continues to change, by 2050 -- and in another 50 or so years beyond that -- our world may be less safe than it is today. 麻省理工学院的科学家在分析了来自美国各地的数据后认为，如果气候继续变化，到2050年--或是此后再过50年左右--我们的世界可能会比现在更不安全。 | 
