Pulse Brain · Growing Health Evidence Index
Tier 1 — Meta-analysis / systematic reviewPeer-reviewed

Expert assessment of future vulnerability of the global peatland carbon sink

Julie Loisel, Angela Gallego‐Sala, Matthew J. Amesbury, Gabriel Magnan, Gusti Z. Anshari, David W. Beilman, Juan C. Benavides, Jerome Blewett, Philip Camill, Dan J. Charman, Sakonvan Chawchai, Alexandra Hedgpeth, Thomas Kleinen, Atte Korhola, David J. Large, Claudia A. Mansilla, Jurek Müller, Simon van Bellen, Jason B. West, Zicheng Yu, Jill L. Bubier, Michelle Garneau, Tim R. Moore, A. Britta K. Sannel, Susan Page, Minna Väliranta, Michel Bechtold, Victor Brovkin, Lydia E. S. Cole, Jeffrey P. Chanton, Torben R. Christensen, Marissa A. Davies, François De Vleeschouwer, Sarah A. Finkelstein, Steve Frolking, Mariusz Gałka, Laure Gandois, Nicholas T. Girkin, Lorna I. Harris, Andreas Heinemeyer, Alison M. Hoyt, Miriam C. Jones, Fortunat Joos, Sari Juutinen, Karl Kaiser, Terri Lacourse, Mariusz Lamentowicz, Tuula Larmola, Jens Leifeld, Annalea Lohila, Alice M. Milner, Kari Minkkinen, Patrick Moss, B. David A. Naafs, J. E. Nichols, Jonathan A. O’Donnell, Richard J. Payne, Michael Philben, Sanna Piilo, Anne Quillet, Amila Sandaruwan Ratnayake, Thomas P. Roland, Sofie Sjögersten, Oliver Sonnentag, Graeme T. Swindles, Ward Swinnen, Julie Talbot, Claire C. Treat, Alex Valach, Jianghua Wu

Nature Climate Change · 2020

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Summary

This expert-led synthesis reveals that peatland ecosystems are at risk of shifting from carbon sinks to carbon sources during the twenty-first century, yet remain poorly represented in global climate models used for impact and mitigation assessments. By combining literature review with structured expert elicitation, the authors identified key climate and land-use drivers altering peatland carbon dynamics and quantified uncertainties in our understanding of the peatland–carbon–climate nexus. The work highlights critical research gaps and provides guidance for improved integration of peatlands into modelling frameworks essential for accurate climate projections.

UK applicability

The United Kingdom contains significant peatland resources (blanket bogs and lowland raised bogs), making the findings directly relevant to UK carbon accounting and climate policy. Improved representation of UK peatlands in national and international climate models could enhance the accuracy of mitigation scenario assessments and inform peatland restoration and management policy.

Key measures

Peatland carbon balance trajectories; drivers of peatland carbon stock change; degree of peatland representation in Earth system models and integrated assessment models

Outcomes reported

The study synthesised evidence and expert assessment to quantify leading drivers of change affecting peatland carbon stocks during the Holocene and predicted their effects during the present century and far future. It identified key uncertainties, knowledge gaps, and recommendations for better integration of peatlands into climate modelling frameworks.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Systematic Review
Study design
Systematic review with expert elicitation
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Other
DOI
10.1038/s41558-020-00944-0
Catalogue ID
BFmovi21by-uaco6z

Topic tags

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