EKC Test And Relation Research On Regional Renewable Energy Consumption And Carbon Dioxide Emission In China

The problem of global warming caused by greenhouse gases has attracted the attention of the world.Vigorously developing and utilizing renewable energy has become one of the most important measures for countries to achieve energy conservation and emission reduction targets.China is in a critical period of new urbanization and industrialization,and will be challenged by more severe energy and environment.In order to effectively achieve national emission reduction target and achieve coordinated economic and environmental development,it is necessary to study the carbon dioxide emissions,renewable energy consumption and the relationship in different regions.This paper combs the current literature on renewable energy consumption and CO2 emissions at home and abroad,and analyzes the current development level of China’s renewable energy.It collects data from 1995 to 2016 in six regions of North China,Northeast China,East China,Central China,Northwest China and South China,and establishes a time series model to determine whether carbon dioxide emissions and renewable energy consumption meet the Environmental Kuznets hypothesis.Then the paper adds demographic factors,economic factors,and energy intensity factors as additional independent variables to study the long-term cointegration relationship and the Granger causality between the regional renewable energy consumption and regional carbon dioxide emissions.The results of EKC test confirm that the CO2 in six regions of China show the inverted N-type characteristics and do not satisfy the hypothesis of inverted U-shaped.With the exception of North China and the Northeast China,the EKC of renewable energy consumption are in a monotonously increasing form.Through the further decomposition of the provinces and cities in the region,it is shown that the relationship between carbon emissions and per capita GDP in the provincial regions of China mainly shows the relationship between inverted N-type and monotonically increasing type.It shows that the technical effect and scale effect have gradually occupied a dominant position in energy development.Panel data test shows that there is a long-term cointegration relationship between carbon dioxide emissions and renewable energy consumption in six regions of China.Renewable energy in EastChina,Northwest China and the South China has an inhibitory effect on regional carbon emissions,while increased renewable energy consumption in North China,Central China and Northeast China will promote carbon emissions.Increased carbon emissions in North China,East China,and Northwest China will significantly reduce renewable energy consumption in the region and meet the one-way causal relationship from CO2 to renewable energy consumption.The increase in carbon emissions in in the Northeast,Central China,and Southern China will significantly affect the increase in regional renewable energy consumption,and in the Northeast,CO2 is the Granger cause of renewable energy consumption.Through the addition of additional variables,it is also found that the economic growth still has a significant increase effect on regional carbon emissions,and the energy efficiency is the main cause of regional carbon emissions reduction.Energy efficiency improvement in North and Northeast China will significantly promote regional renewable energy consumption.The level,while the demographic factor is also the reason for the increase in renewable energy consumption in North China,Northeast China and East China..Finally,based on the results of empirical tests,this paper gives corresponding recommendations for the development and introduction of renewable energy technologies and policy support,industrial structure optimization and upgrading.