Bridging Giants: A Comprehensive Analysis of Sino-US Collaboration on Climate Change Solutions

China and the U.S. are essential to collaboration and climate change action since they are the two countries with the greatest economies and emissions of greenhouse gases worldwide. Over the past decades, China and the United States have gone through many stages of exploration, collaboration and contradiction, concerted leadership, regression, and disagreement in climate cooperation. There have been exploration experiences in the early stages of collaboration on climate issues, cooperation and contradiction in GHG emissions reduction, constant changes in U.S. climate policy, and presidential partisanship. The U.S.-China climate and environmental cooperation have been characterized by a cycle of “positive interaction - declining warmth - leading the world - setbacks - restoring warmth.” This paper focuses on a comprehensive analysis of the history, current status, and future trends of U.S.-China climate cooperation in terms of policymaking, which is of great significance to promoting global climate governance and collaboration in addressing climate change.