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2009 年世界人口状况报告

面对不断变化的世界 - 妇女,人口和气候

image of 2009 年世界人口状况报告

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概览

气候是指天气的长期平均状态。气候一直 在变化,但据人类以往的经验,从来没有发生 像下个世纪将要发生的那样剧烈变化。自农业 社会产生文明以来,地球的气候总体上相对稳 定。其气温和降水保证了人类的生存和繁衍。

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