AUTHOR=Shen Jinxing , Gao Wenlong , Lu Jingwei , Li Fengjiang , Feng Xuejun TITLE=Sources, calculation methods, and reduction strategies for GHG emissions at ports: current status and future trends JOURNAL=Frontiers in Marine Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2025.1542255 DOI=10.3389/fmars.2025.1542255 ISSN=2296-7745