Study of Green GDP Based on the Ecological Footprint Model

To explicitly assess the impact of the implementation of GGDP policies on global climate, this paper analyzes multiple manifestations of climate change. Using analytic hierarchy process, the significance of each manifestation was assessed, with carbon dioxide being the most significant. In this paper, "carbon emissions" is used as a research index, and the relation function y=68.56 + 0.002* investment in environmental governance + 0.004* investment in environmental degradation was obtained by fitting the carbon emission variation and the sum of investment in environmental pollution control and environmental degradation with least square method. In addition, this paper introduces the "ecological footprint model", which uses the ecological footprint demand and ecological carrying capacity to jointly calculate the ecological damage level index of a country or region, to evaluate the sustainable development level and assist the carbon emission model to objectively evaluate the impact of the implementation of GGDP policies on the global climate. The advantages and disadvantages of the implementation of GGDP policy are also analyzed, the EKC curve is introduced, and suggestions for improvement are put forward for the possible fairness problems.