Evaluation of Green GDP Implementation's Impact on Climate Change Mitigation Based on the AHP-CRITIC-CEI Model Under the Dual Carbon Goals

This study, based on the dual carbon goals, constructed an AHP-CRITIC-CEI integrated model to evaluate the impact of Green GDP implementation on climate change mitigation. By using AHP and CRITIC methods, multiple indicators were weighted and applied to the dataset of 44 countries. The grey prediction model was used for longitudinal analysis of the pre- and post-Green GDP reform conditions, and the results showed that the implementation of Green GDP significantly improved the relevant indices. Subsequently, an entropy-based K-means clustering method was used for horizontal comparison of the climate friendliness indices among countries, validating the positive impact of Green GDP on climate change mitigation and the adaptability of the model, providing scientific evidence for achieving the dual carbon goals.