The Spatial and Temporal Difference between Economic-Environment-Renewable Energy Coupling Coordination under the “Dual Carbon” Target: Evidence from China

Under the background of China’s “Dual Carbon” Target (carbon peaking and carbon neutrality goals), this article in order to explore the development of economic, environmental and renewable energy (REE) coupling coordination and spatial differences in 30 provinces and cities in China from 2013 to 2021, study and analyze the relevant factors affecting the coupling coordination of the REE systems, and predict the future coupling of China's four regions, coordinate the development situation, expand the research perspective of renewable energy, and put forward countermeasures and suggestions based on the research content. Research methods: coupling coordination model, geographical detector, GM (1.1) gray prediction model. The study results reveals that the coupling coordination of REE in 30 provinces and cities across the country shows a steady upward development trend from 2013 to 2021, but the number of provinces in the category of coordinated development is small, and most of them are concentrated in the eastern and coastal provinces, and the coupling and coordination between the western and northeastern provinces is not for optimism. Economic and environmental factors have a significant impact on the coupling and coordinated development of the REE systems, among which the economic impact plays a leading role. The eastern and central provinces will take the lead in reaching a strong coupling state in the future, followed by the western and the northeast provinces.