Can environmental governance policy synergy reduce carbon emissions?

Policy synergy is a unique way for the government to establish a policy network and a crucial way for cities to expand their carbon reduction channels. Using urban data from China, this paper empirically investigates how environmental governance policy synergy (EGPS) affects carbon emissions. In comparison to non-pilot cities, the environmental information disclosure (EID) policy and low-carbon city (LC) policy play an inhibitory role in carbon emissions. Furthermore, EGPS has a stronger effect and is heterogeneous by region. Through the use of technical advancement and industrial structure optimisation, EGPS lowers carbon emissions, and this effect of EGPS grows over time in tandem with the level of environmental pollution in the cities. Our paper proposes policy implications in order to improve the overall effect of environmental governance policy and help achieve the dual carbon targets.