Department of Earth System Science, Stanford University, Stanford, CA 94305-2210, USA.
Woods Institute for the Environment, and Precourt Institute for Energy, Stanford University, Stanford, CA 94305-2210, USA.
Philos Trans A Math Phys Eng Sci. 2021 Nov 15;379(2210):20200454. doi: 10.1098/rsta.2020.0454. Epub 2021 Sep 27.
Atmospheric methane removal (e.g. methane oxidation to carbon dioxide) may be needed to offset continued methane release and limit the global warming contribution of this potent greenhouse gas. Because mitigating most anthropogenic emissions of methane is uncertain this century, and sudden methane releases from the Arctic or elsewhere cannot be excluded, technologies for methane removal or oxidation may be required. Carbon dioxide removal has an increasingly well-established research agenda and technological foundation. No similar framework exists for methane removal. We believe that a research agenda for negative methane emissions-'removal' or atmospheric methane oxidation-is needed. We outline some considerations for such an agenda here, including a proposed Methane Removal Model Intercomparison Project (MR-MIP). This article is part of a discussion meeting issue 'Rising methane: is warming feeding warming? (part 1)'.
大气甲烷清除（例如，将甲烷氧化为二氧化碳）可能需要抵消持续的甲烷释放，并限制这种强效温室气体的全球变暖贡献。由于缓解本世纪人为甲烷排放的措施尚不确定，而且不能排除来自北极或其他地方的甲烷突然释放，因此可能需要去除或氧化甲烷的技术。二氧化碳去除已经有了越来越完善的研究议程和技术基础。而去除甲烷则没有类似的框架。我们认为，需要制定一个针对负甲烷排放的研究议程——“去除”或大气甲烷氧化。我们在这里概述了该议程的一些考虑因素，包括提议的甲烷去除模型互比较计划（MR-MIP）。本文是讨论会议议题“甲烷排放增加：变暖是否在加剧变暖？（第 1 部分）”的一部分。
