Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ...
The near proportionality between cumulative CO2 emissions and change in near surface temperature can be used to define a carbon budget: a finite quantity of carbon that can be burned associated with a chosen 'safe' temperature change threshold. Here we evaluate the sensitivity of this carb...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000108054 http://hdl.handle.net/20.500.11850/108054 |
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ftdatacite:10.3929/ethz-b-000108054 2024-04-28T08:35:48+00:00 Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... MacDougall, Andrew H. Zickfeld, Kirsten Knutti, Reto Matthews, H. Damon 2015 application/pdf https://dx.doi.org/10.3929/ethz-b-000108054 http://hdl.handle.net/20.500.11850/108054 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Carbon budget TCRE Climate change article-journal Text ScholarlyArticle Journal Article 2015 ftdatacite https://doi.org/10.3929/ethz-b-000108054 2024-04-02T12:33:25Z The near proportionality between cumulative CO2 emissions and change in near surface temperature can be used to define a carbon budget: a finite quantity of carbon that can be burned associated with a chosen 'safe' temperature change threshold. Here we evaluate the sensitivity of this carbon budget to permafrost carbon dynamics and changes in non-CO2 forcings. The carbon budget for 2.0 ${}^{\circ }{\rm{C}}$ of warming is reduced from 1320 Pg C when considering only forcing from CO2 to 810 Pg C when considering permafrost carbon feedbacks as well as other anthropogenic contributions to climate change. We also examined net carbon budgets following an overshoot of and return to a warming target. That is, the net cumulative CO2 emissions at the point in time a warming target is restored following artificial removal of CO2 from the atmosphere to cool the climate back to a chosen temperature target. These overshoot net carbon budgets are consistently smaller than the conventional carbon budgets. Overall carbon ... : Environmental Research Letters, 10 (12) ... Article in Journal/Newspaper permafrost DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Carbon budget TCRE Climate change |
spellingShingle |
Carbon budget TCRE Climate change MacDougall, Andrew H. Zickfeld, Kirsten Knutti, Reto Matthews, H. Damon Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
topic_facet |
Carbon budget TCRE Climate change |
description |
The near proportionality between cumulative CO2 emissions and change in near surface temperature can be used to define a carbon budget: a finite quantity of carbon that can be burned associated with a chosen 'safe' temperature change threshold. Here we evaluate the sensitivity of this carbon budget to permafrost carbon dynamics and changes in non-CO2 forcings. The carbon budget for 2.0 ${}^{\circ }{\rm{C}}$ of warming is reduced from 1320 Pg C when considering only forcing from CO2 to 810 Pg C when considering permafrost carbon feedbacks as well as other anthropogenic contributions to climate change. We also examined net carbon budgets following an overshoot of and return to a warming target. That is, the net cumulative CO2 emissions at the point in time a warming target is restored following artificial removal of CO2 from the atmosphere to cool the climate back to a chosen temperature target. These overshoot net carbon budgets are consistently smaller than the conventional carbon budgets. Overall carbon ... : Environmental Research Letters, 10 (12) ... |
format |
Article in Journal/Newspaper |
author |
MacDougall, Andrew H. Zickfeld, Kirsten Knutti, Reto Matthews, H. Damon |
author_facet |
MacDougall, Andrew H. Zickfeld, Kirsten Knutti, Reto Matthews, H. Damon |
author_sort |
MacDougall, Andrew H. |
title |
Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
title_short |
Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
title_full |
Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
title_fullStr |
Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
title_full_unstemmed |
Sensitivity of carbon budgets to permafrost carbon feedbacks, non-CO2 forcings, and negative emissions ... |
title_sort |
sensitivity of carbon budgets to permafrost carbon feedbacks, non-co2 forcings, and negative emissions ... |
publisher |
ETH Zurich |
publishDate |
2015 |
url |
https://dx.doi.org/10.3929/ethz-b-000108054 http://hdl.handle.net/20.500.11850/108054 |
genre |
permafrost |
genre_facet |
permafrost |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000108054 |
_version_ |
1797567796117241856 |