Grey Relevance Analysis of Major Factors of Energy-Related CO2 Emissions in Tianjin, China

Energy-related CO2 emissions from Tianjin’s production and household sectors during 2000–2012 were calculated based on the default carbon-emission coefficients provided by the Intergovernmental Panel on Climate Change. Grey relational analysis was used in this study to capture the dynamic characteristics of 12 different factors related to CO2 emissions. The results indicated that population scale and structure, industrial structure, per capita disposable income, energy consumption and structure appeared as the main drivers related to the CO2 emissions increase during the study period. Based on the research, we make the policy recommendations including optimizing the industrial structure and energy structure, improving energy efficiency and promoting low-carbon consumption.