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China is working on reaching its CO2 emission summit before 2030.Given to the great disparity in stages of economic development,industrialization as well as urbanization among regions in mainland China,the turning point of CO2 emissions for different regions will also be diversified.As the most developed region/city in mainland China,Beijing presented a steady decline trend in direct CO2 emissions since 2007,after an annual 5.25% growth during 1997-2007 period.Hence,does the turning point of CO2 emissions in Beijing really come?