AUTHOR=Shu Jia-Xian , Peng Jia-Jia , Zhang Jing TITLE=The impact of low-carbon city pilot policy on carbon emission intensity: evidence from China using a multi-period difference-in-differences model JOURNAL=Frontiers in Environmental Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2024.1488526 DOI=10.3389/fenvs.2024.1488526 ISSN=2296-665X