An Analysis and Political Assessment on CO2 Emission Structure of China's Megacities

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  • 中国の都市レベルのCO<sub>2 </sub>排出構造の分析と政策的評価
  • 中国の都市レベルのCO₂排出構造の分析と政策的評価
  • チュウゴク ノ トシ レベル ノ CO ₂ ハイシュツ コウゾウ ノ ブンセキ ト セイサクテキ ヒョウカ

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We tried to decompose the fluctuation factors of energy-related CO2 emissions from four megacities in China (Beijing, Shanghai, Tianjin, Chongqing), as well as Tokyo, during the period from 2004 to 2014, by using Kaya-identity, and analyzed China's low-carbon and air pollution policies integrally. In conclusion: (1) Factors for boosting CO2 emissions were mainly economic factors, and the factors having pushed down mainly were lower energy intensity rapidly progressing since 2010, in addition to a decline in carbon intensity acting steadily since 2004. (2) Looking at the relationship with policies, the co-benefit of air pollution control (especially for SOx) was progressing low carbon before 2010, and the 4 cities have reached the 2020-target level of CO2/GDP by 2013. Since 2010 the total emission volumes of CO2 have slowed due to full-scale implementation of low carbon policy, and Beijing turned to a downward trend.

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