Articles | Volume 18, issue 17
Biogeosciences, 18, 4937–4952, 2021
https://doi.org/10.5194/bg-18-4937-2021
Biogeosciences, 18, 4937–4952, 2021
https://doi.org/10.5194/bg-18-4937-2021

Research article 10 Sep 2021

Research article | 10 Sep 2021

Estimated effect of the permafrost carbon feedback on the zero emissions commitment to climate change

Andrew H. MacDougall

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Latest update: 18 Oct 2021
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Short summary
Permafrost soils hold about twice as much carbon as the atmosphere. As the Earth warms the organic matter in these soils will decay, releasing CO2 and CH4. It is expected that these soils will continue to release carbon to the atmosphere long after man-made emissions of greenhouse gases cease. Here we use a method employing hundreds of slightly varying model versions to estimate how much warming permafrost carbon will cause after human emissions of CO2 end.
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