AUTHOR=Wu Yan TITLE=How does trade freedom affect the development of clean energy? based on the moderating effect of carbon emissions JOURNAL=Frontiers in Environmental Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2025.1552231 DOI=10.3389/fenvs.2025.1552231 ISSN=2296-665X