The impact of digital infrastructure on carbon emissions: evidence from 284 cities in China

This study examines the impact of digital infrastructure on carbon emissions utilizing urban panel data spanning from 2007 to 2022 in China. The research findings reveal that digital infrastructure has mitigated carbon emissions in cities, with a more pronounced effect observed in eastern and northern regions. Notably, large cities and non-resource-based cities have reaped greater environmental benefits from digital infrastructure. Key mechanisms driving this reduction include lowering energy consumption, fostering green technological innovations, and enhancing factor allocation efficiency. Additionally, digital infrastructure construction exhibits a spatial spillover effect, where local digital infrastructure inhibits carbon emissions in neighboring cities. These discoveries offer insightful references for policymakers in planning the application of digital infrastructure to facilitate carbon reduction efforts.