Abstract
This study examines the evolution of China’s “dual-carbon” policy framework from 2007 to 2024 through content topic mining. Using NLP and LDA topic modelling, we analysed 235 policy documents to identify four key topics: market mechanisms, monitoring systems, support systems, and emissions management. Our findings reveal shifts in policy intensity and topic focus over time, providing insights into China’s strategies for achieving carbon neutrality. This analysis highlights the importance of comprehensive support and monitoring systems and offers practical guidance for policymakers to strengthen the dual-carbon framework as China progresses towards its carbon targets.