AUTHOR=Ni Yunyan , Hu Qinhong , Li Maowen , Zhang Tongwei , Gong Deyu TITLE=Editorial: Isotopic geochemistry of natural gas JOURNAL=Frontiers in Earth Science VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2022.1013940 DOI=10.3389/feart.2022.1013940 ISSN=2296-6463