«The evidence suggests this viral type is distributed around the globe in deep ocean methane seeps.» (sciencedaily.com)
Carbon negative: actions that pollute the land, water and atmosphere with various forms of carbon, for example, CO2 and methane into the atmosphere or plastics in the ocean (environmentalleader.com)
One thing I note is the relative lack of disambiguation between deep ocean methane sources and surface permafrost methane sources. (judithcurry.com)