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THE ROAD TO LOW CARBON: CAN THE OPENING OF HIGH-SPEED RAILWAY REDUCE THE LEVEL OF URBAN CARBON EMISSIONS?
Abstract: Adhering to green and low-carbon development is the only way to achieve sustainable economic development in China. High-speed railway (HSR) has the advantages of low energy consumption and low pollution, which is representative of the high-quality development of China’s transportation industry. Based on the panel data of 285 cities in China from 2004 to 2017, this paper explores the impact of HSR development on CO2 emissions using a difference-in-difference model. The results show that the opening of HSR can effectively reduce the level of urban CO2 emissions. After the endogeneity test and the robustness test, this core conclusion is still valid. The mechanism test confirms that the opening of HSR can reduce the level of urban carbon emissions by promoting the upgrading of industrial structures and improving the level of green technology innovation. Based on empirical results, this paper proposes that we should make rational use of the positive externalities of the HSR network to promote green development, intensive development, and innovative development.
Keywords: high-speed railway; carbon emissions; DID model; mediating effect