Digital economy and carbon emission performance: Evidence at China's city level

Night-time light data based decoupling relationship analysis between economic growth and carbon emission in 289 Chinese cities

Effects of China's pilot low-carbon city policy on carbon emission reduction: A quasi-natural experiment based on satellite data

How does ICT agglomeration affect carbon emissions? The case of Yangtze River Delta urban agglomeration in China

Effect of the carbon emissions trading policy on the co-benefits of carbon emissions reduction and air pollution control

With the implementation of China's top-down CO2 emissions reduction strategy, the regional differences should be considered. As the most basic governmental unit in China, counties could better capture the regional heterogeneity than provinces and prefecture-level city, and county-level CO2 emissions could be used for the development of strategic policies tailored to local conditions. However, most of the previous accounts of CO2 emissions in China have only focused on the national, provincial, or city levels, owing to limited methods and smaller-scale data. In this study, a particle swarm optimization-back propagation (PSO-BP) algorithm was employed to unify the scale of DMSP/OLS and NPP/VIIRS satellite imagery and estimate the CO2 emissions in 2,735 Chinese counties during 1997-2017. Moreover, as vegetation has a significant ability to sequester and reduce CO2 emissions, we calculated the county-level carbon sequestration value of terrestrial vegetation. The results presented here can contribute to existing data gaps and enable the development of strategies to reduce CO2 emissions in China.

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Yu Liu

Papers

County-level CO2 emissions and sequestration in China during 1997–2017