作为一个碳排放大国,中国已经在哥本哈根大会上宣布了减排目标:到2020年实现单位GDP的碳排放比2005年水平下降40%～45%。城市位于节能减碳目标分解的末端,这意味着城市应肩负着实现国家目标的重要责任,而世界城市的低碳经验值得我们思考和学习。本文希望通过对几个国际城市应对气候变化政策文件的追踪和分析,为中国城市参考。 As a big carbon-emitting country, China announced its target at the Copenhagen conference to reduce carbon emissions per unit of GDP by 40% -45% from 2005 levels by 2020. The city is at the end of the target of carbon reduction, which means that cities should shoulder the important responsibility to achieve national goals, and the low-carbon experiences of world cities deserve our consideration and study. This article hopes that through several international cities to track and analyze climate change policy documents, for the Chinese city reference.