AUTHOR=Xu Pei , Jin Zehu , Wu Xianghua TITLE=Effect of green trade barriers on export enterprise green technological innovation from the perspective of the low-carbon city pilot policy JOURNAL=Frontiers in Environmental Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2024.1486855 DOI=10.3389/fenvs.2024.1486855 ISSN=2296-665X