The total coal consumption in China is on the rise.The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study.Based on the five links of the whole...The total coal consumption in China is on the rise.The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study.Based on the five links of the whole process of coal production and utilization,including coal production,raw coal processing,logistics and transportation,conversion and utilization and resource utilization,this paper summarized and analyzed the energy consumption and pollutant emission sources of these five links,combined with the US Environmental Protection Agency’s AP-42 method and IPCC method,to calculate total pollutant discharge and emission factors,where the emission factors were corrected by conversion efficiency.At the same time,uncertainty analysis is performed about CO2 and SO2 emissions.The results showed that CO2 emissions were 3.657 billion tons,and emission reductions were 61 million tons,and SO2 emissions were 4,844,500 tons,and emission reductions were 10.3595 million tons in 2015.展开更多
The deepening of global value chains(GVCs)has made remarkable impacts on the environmental outcomes of all countries/regions.What are the differences in environmental burden undertaken by countries/regions at differen...The deepening of global value chains(GVCs)has made remarkable impacts on the environmental outcomes of all countries/regions.What are the differences in environmental burden undertaken by countries/regions at different stages of economic development are a question worthy inquiry.This study compares the impacts of GVCs participation degree on CO_(2) intensity between developed and developing countries/regions.Using panel data of 19 manufacturing industries in 43 countries/regions over the period of 2000-2014,it is discovered that the deeper participation in GVCs of developed countries/regions significantly reduces their CO_(2) intensity,while the more participation in GVCs of developing countries/regions significantly increases their CO_(2) intensity.Additionally,the quantile regression results reveal that the reduction of CO_(2) intensity is increasing for industries with higher initial CO_(2) intensity for developed countries/regions,whereas for developing countries/regions,only industries with initial low CO_(2) intensity experience significant increases in CO_(2) intensity.We further analyzed the effect of GVCs participation degree on CO_(2) intensity for high-tech and low-tech industries and discovered that the effect is only significant in low-tech industries.These findings provide empirical evidence for the pollution haven hypothesis and offer enlightenment to formulate future trade and environmental policies.展开更多
基金Supported by the Major Science and Technology Projects of Shanxi Province(No.20181102017)the Open Project Program of State Key Laboratory of Petroleum Pollution Control(No.PPC2017010)+1 种基金CNPC Research Institute of Safety and Environmental Technologythe Fundamental Research Funds for the Central Universities(No.2009QH03).
文摘The total coal consumption in China is on the rise.The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study.Based on the five links of the whole process of coal production and utilization,including coal production,raw coal processing,logistics and transportation,conversion and utilization and resource utilization,this paper summarized and analyzed the energy consumption and pollutant emission sources of these five links,combined with the US Environmental Protection Agency’s AP-42 method and IPCC method,to calculate total pollutant discharge and emission factors,where the emission factors were corrected by conversion efficiency.At the same time,uncertainty analysis is performed about CO2 and SO2 emissions.The results showed that CO2 emissions were 3.657 billion tons,and emission reductions were 61 million tons,and SO2 emissions were 4,844,500 tons,and emission reductions were 10.3595 million tons in 2015.
基金Financial supports from the National Natural Science Foundation of China(71774122,72073105,71874064,71874177,72022019)are greatly acknowledged.
文摘The deepening of global value chains(GVCs)has made remarkable impacts on the environmental outcomes of all countries/regions.What are the differences in environmental burden undertaken by countries/regions at different stages of economic development are a question worthy inquiry.This study compares the impacts of GVCs participation degree on CO_(2) intensity between developed and developing countries/regions.Using panel data of 19 manufacturing industries in 43 countries/regions over the period of 2000-2014,it is discovered that the deeper participation in GVCs of developed countries/regions significantly reduces their CO_(2) intensity,while the more participation in GVCs of developing countries/regions significantly increases their CO_(2) intensity.Additionally,the quantile regression results reveal that the reduction of CO_(2) intensity is increasing for industries with higher initial CO_(2) intensity for developed countries/regions,whereas for developing countries/regions,only industries with initial low CO_(2) intensity experience significant increases in CO_(2) intensity.We further analyzed the effect of GVCs participation degree on CO_(2) intensity for high-tech and low-tech industries and discovered that the effect is only significant in low-tech industries.These findings provide empirical evidence for the pollution haven hypothesis and offer enlightenment to formulate future trade and environmental policies.
