Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration"
The cost-effective mitigation of climate change through nature-based carbon dioxide removal strategies has gained substantial policy attention. Inland and coastal wetlands (specifically boreal, temperate and tropical peatlands; tundra; floodplains; freshwater marshes; saltmarshes and mangroves) are...
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ftdatacite:10.6084/m9.figshare.c.5036474 2023-05-15T18:40:45+02:00 Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" Taillardat, Pierre Thompson, Benjamin S. Garneau, Michelle Trottier, Karelle Friess, Daniel A. 2020 https://dx.doi.org/10.6084/m9.figshare.c.5036474 https://rs.figshare.com/collections/Supplementary_material_from_Climate_change_mitigation_potential_of_wetlands_and_the_cost-effectiveness_of_their_restoration_/5036474 unknown The Royal Society https://dx.doi.org/10.1098/rsfs.2019.0129 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Geochemistry FOS Earth and related environmental sciences Environmental Science 40199 Atmospheric Sciences not elsewhere classified Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.5036474 https://doi.org/10.1098/rsfs.2019.0129 2021-11-05T12:55:41Z The cost-effective mitigation of climate change through nature-based carbon dioxide removal strategies has gained substantial policy attention. Inland and coastal wetlands (specifically boreal, temperate and tropical peatlands; tundra; floodplains; freshwater marshes; saltmarshes and mangroves) are among the most efficient natural long-term carbon sinks, yet they also release methane (CH 4 ) that can offset the carbon they sequester. Here, we conducted a meta-analysis on wetland carbon dynamics to (i) determine the role they play on climate and discuss their suitability for inclusion in greenhouse gas emissions (GHG) mitigation policies; (ii) investigate the cost-effectiveness of wetland restoration for climate change mitigation strategies. Depending on metrics, a wetland can simultaneously be a net carbon sink (i.e. boreal and temperate peatlands net ecosystem carbon budget (NECB) = −28.1 ± 19.13 gC m −2 y −1 ) but have a net warming effect on climate at the 100 years time-scale (i.e. boreal and temperate peatland sustained global warming potential (SGWP) = 298.2 ± 100.6 gCO 2 eq −1 m −2 y −1 ). This ambivalence shows that the choice of metric can lead to misinterpretation on the effect of wetlands on global temperature. Moreover, our review report high heterogeneity and a still limited number of studies that document wetland carbon budgets. In this study, we demonstrate that most coastal and inland wetlands have a net cooling effect as of today. This is explained by the limited CH 4 emissions that undisturbed coastal wetlands produce and the short lifetime of CH 4 in the atmosphere, compared with long-term carbon sequestration for older inland wetlands. Analysis of wetland restoration costs relative to the amount of carbon they can sequester revealed that restoration is more cost-effective in coastal wetlands such as mangroves (US$1800 ton C −1 ) compared with inland wetlands (US$ 4200–49 200 ton C −1 ). For inland wetlands, priority should be given to conservation rather than restoration, while for coastal wetlands, both conservation and restoration may be effective techniques for climate change mitigation. Article in Journal/Newspaper Tundra DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Geochemistry FOS Earth and related environmental sciences Environmental Science 40199 Atmospheric Sciences not elsewhere classified |
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Geochemistry FOS Earth and related environmental sciences Environmental Science 40199 Atmospheric Sciences not elsewhere classified Taillardat, Pierre Thompson, Benjamin S. Garneau, Michelle Trottier, Karelle Friess, Daniel A. Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
topic_facet |
Geochemistry FOS Earth and related environmental sciences Environmental Science 40199 Atmospheric Sciences not elsewhere classified |
description |
The cost-effective mitigation of climate change through nature-based carbon dioxide removal strategies has gained substantial policy attention. Inland and coastal wetlands (specifically boreal, temperate and tropical peatlands; tundra; floodplains; freshwater marshes; saltmarshes and mangroves) are among the most efficient natural long-term carbon sinks, yet they also release methane (CH 4 ) that can offset the carbon they sequester. Here, we conducted a meta-analysis on wetland carbon dynamics to (i) determine the role they play on climate and discuss their suitability for inclusion in greenhouse gas emissions (GHG) mitigation policies; (ii) investigate the cost-effectiveness of wetland restoration for climate change mitigation strategies. Depending on metrics, a wetland can simultaneously be a net carbon sink (i.e. boreal and temperate peatlands net ecosystem carbon budget (NECB) = −28.1 ± 19.13 gC m −2 y −1 ) but have a net warming effect on climate at the 100 years time-scale (i.e. boreal and temperate peatland sustained global warming potential (SGWP) = 298.2 ± 100.6 gCO 2 eq −1 m −2 y −1 ). This ambivalence shows that the choice of metric can lead to misinterpretation on the effect of wetlands on global temperature. Moreover, our review report high heterogeneity and a still limited number of studies that document wetland carbon budgets. In this study, we demonstrate that most coastal and inland wetlands have a net cooling effect as of today. This is explained by the limited CH 4 emissions that undisturbed coastal wetlands produce and the short lifetime of CH 4 in the atmosphere, compared with long-term carbon sequestration for older inland wetlands. Analysis of wetland restoration costs relative to the amount of carbon they can sequester revealed that restoration is more cost-effective in coastal wetlands such as mangroves (US$1800 ton C −1 ) compared with inland wetlands (US$ 4200–49 200 ton C −1 ). For inland wetlands, priority should be given to conservation rather than restoration, while for coastal wetlands, both conservation and restoration may be effective techniques for climate change mitigation. |
format |
Article in Journal/Newspaper |
author |
Taillardat, Pierre Thompson, Benjamin S. Garneau, Michelle Trottier, Karelle Friess, Daniel A. |
author_facet |
Taillardat, Pierre Thompson, Benjamin S. Garneau, Michelle Trottier, Karelle Friess, Daniel A. |
author_sort |
Taillardat, Pierre |
title |
Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
title_short |
Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
title_full |
Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
title_fullStr |
Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
title_full_unstemmed |
Supplementary material from "Climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
title_sort |
supplementary material from "climate change mitigation potential of wetlands and the cost-effectiveness of their restoration" |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5036474 https://rs.figshare.com/collections/Supplementary_material_from_Climate_change_mitigation_potential_of_wetlands_and_the_cost-effectiveness_of_their_restoration_/5036474 |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
https://dx.doi.org/10.1098/rsfs.2019.0129 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5036474 https://doi.org/10.1098/rsfs.2019.0129 |
_version_ |
1766230176347193344 |