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The objective is to know how the CO2 emits and how much the CO2 emits due to the cement manufacture in both direct and indirect ways with the increasing concerns about the global warming and the cement plants emitting huge CO2. A precise method to calculate CO2 emissions including three processes was established in this paper and a case study was provided. From the case of 23 typical plants in China, we can see the amount of CO2 emissions at the right level. The summary of CO2 emissions consists of emissions from raw materials, fuels and electricity. The average result of the 23 typical plants is 0.74 t CO2 per ton clinker in this study. Therefore, CO2 emissions from these typical cement plants were pictured and then measured. The creative point is that an approach provides a basic framework to identify various situations in different cement plants in China and other in the rest of the world. The framework would be useful in quantitatively evaluating CO2 emissions for government to know precisely CO2 emissions in the cement plants. 相似文献
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抢在6月初八国峰会召开前夕,美国总统布什在5月的最后一天抛出了名为“气候变化动议”的计划。布什无非试图让自己的,气候变化动议“成为即将失效的《京都议定书》的替代品,进而为自己的总统生涯圈下光彩的一笔。尽管布什私心盈盈,但人们却从这位历来与《京都议定书》背道而驰的“强势总统”的态度逆转中感受到了全球气候变暖的严重性。 相似文献
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创新联盟以《国家中长期科技发展规划纲要》、应对气候变暖、节能环保的国家目标为工作指针,期望经过10年努力,使我国汽车制造装备的对外依存度从目前的70%降低到30%。[编者按] 相似文献