1. Fossil mosses are emitting methane after maritime Antarctic glacier retreat.
- Author
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Evgrafova SY, Mavlyudov BR, Chukmasov PV, Chetverova AA, and Masyagina OV
- Subjects
- Antarctic Regions, Ice Cover, Carbon Dioxide analysis, Fossils, Methane, Bryophyta
- Abstract
In the extraordinary weather conditions of the austral summer of 2023, fossil mosses thawed out from under the Bellingshausen Ice Dome, King George Island, Southern Shetland Archipelago of maritime Antarctica. At the end of the austral summer, we directly measured greenhouse gas fluxes (CH
4 and CO2 ) from the surface of fossil mosses. We showed that fossil mosses were strong emitters of CH4 and weak emitters of CO2 . The real-time measured CH4 emissions reached 0.173 μmol m-2 s-1 , which is comparable to CH4 efflux in water bodies or wet tundra in the Arctic., Competing Interests: Declaration of competing interest The authors declare no competing interests., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2024
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