Long-term response of oceans to CO2 removal from the atmosphere
Carbon dioxide removal (CDR) from the atmosphere has been proposed as a measure for mitigating global warming and ocean acidification. To assess the extent to which CDR might eliminate the long-term consequences of anthropogenic CO2 emissions in the marine environment, we simulate the effect of two...
Published in: | Nature Climate Change |
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Online Access: | https://oceanrep.geomar.de/id/eprint/30925/ https://oceanrep.geomar.de/id/eprint/30925/1/Mathesius.pdf https://oceanrep.geomar.de/id/eprint/30925/2/nclimate2729-s1.pdf https://doi.org/10.1038/NCLIMATE2729 |
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ftoceanrep:oai:oceanrep.geomar.de:30925 2023-05-15T17:51:09+02:00 Long-term response of oceans to CO2 removal from the atmosphere Mathesius, Sabine Hofmann, Matthias Caldeira, Ken Schellnhuber, Hans Joachim 2015-12 text https://oceanrep.geomar.de/id/eprint/30925/ https://oceanrep.geomar.de/id/eprint/30925/1/Mathesius.pdf https://oceanrep.geomar.de/id/eprint/30925/2/nclimate2729-s1.pdf https://doi.org/10.1038/NCLIMATE2729 en eng Nature Publishing Group https://oceanrep.geomar.de/id/eprint/30925/1/Mathesius.pdf https://oceanrep.geomar.de/id/eprint/30925/2/nclimate2729-s1.pdf Mathesius, S. , Hofmann, M., Caldeira, K. and Schellnhuber, H. J. (2015) Long-term response of oceans to CO2 removal from the atmosphere. Nature Climate Change, 5 (12). pp. 1107-1113. DOI 10.1038/NCLIMATE2729 <https://doi.org/10.1038/NCLIMATE2729>. doi:10.1038/NCLIMATE2729 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2015 ftoceanrep https://doi.org/10.1038/NCLIMATE2729 2023-04-07T15:22:42Z Carbon dioxide removal (CDR) from the atmosphere has been proposed as a measure for mitigating global warming and ocean acidification. To assess the extent to which CDR might eliminate the long-term consequences of anthropogenic CO2 emissions in the marine environment, we simulate the effect of two massive CDR interventions with CO2 extraction rates of 5 GtC yr(-1) and 25 GtC yr(-1), respectively, while CO2 emissions follow the extended RCP8.5 pathway. We falsify two hypotheses: the first being that CDR can restore pre-industrial conditions in the ocean by reducing the atmospheric CO2 concentration back to its pre-industrial level, and the second being that high CO2 emissions rates (RCP8.5) followed by CDR have long-term oceanic consequences that are similar to those of low emissions rates (RCP2.6). Focusing on pH, temperature and dissolved oxygen, we find that even after several centuries of CDR deployment, past CO2 emissions would leave a substantial legacy in the marine environment. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Nature Climate Change 5 12 1107 1113 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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English |
description |
Carbon dioxide removal (CDR) from the atmosphere has been proposed as a measure for mitigating global warming and ocean acidification. To assess the extent to which CDR might eliminate the long-term consequences of anthropogenic CO2 emissions in the marine environment, we simulate the effect of two massive CDR interventions with CO2 extraction rates of 5 GtC yr(-1) and 25 GtC yr(-1), respectively, while CO2 emissions follow the extended RCP8.5 pathway. We falsify two hypotheses: the first being that CDR can restore pre-industrial conditions in the ocean by reducing the atmospheric CO2 concentration back to its pre-industrial level, and the second being that high CO2 emissions rates (RCP8.5) followed by CDR have long-term oceanic consequences that are similar to those of low emissions rates (RCP2.6). Focusing on pH, temperature and dissolved oxygen, we find that even after several centuries of CDR deployment, past CO2 emissions would leave a substantial legacy in the marine environment. |
format |
Article in Journal/Newspaper |
author |
Mathesius, Sabine Hofmann, Matthias Caldeira, Ken Schellnhuber, Hans Joachim |
spellingShingle |
Mathesius, Sabine Hofmann, Matthias Caldeira, Ken Schellnhuber, Hans Joachim Long-term response of oceans to CO2 removal from the atmosphere |
author_facet |
Mathesius, Sabine Hofmann, Matthias Caldeira, Ken Schellnhuber, Hans Joachim |
author_sort |
Mathesius, Sabine |
title |
Long-term response of oceans to CO2 removal from the atmosphere |
title_short |
Long-term response of oceans to CO2 removal from the atmosphere |
title_full |
Long-term response of oceans to CO2 removal from the atmosphere |
title_fullStr |
Long-term response of oceans to CO2 removal from the atmosphere |
title_full_unstemmed |
Long-term response of oceans to CO2 removal from the atmosphere |
title_sort |
long-term response of oceans to co2 removal from the atmosphere |
publisher |
Nature Publishing Group |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/30925/ https://oceanrep.geomar.de/id/eprint/30925/1/Mathesius.pdf https://oceanrep.geomar.de/id/eprint/30925/2/nclimate2729-s1.pdf https://doi.org/10.1038/NCLIMATE2729 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/30925/1/Mathesius.pdf https://oceanrep.geomar.de/id/eprint/30925/2/nclimate2729-s1.pdf Mathesius, S. , Hofmann, M., Caldeira, K. and Schellnhuber, H. J. (2015) Long-term response of oceans to CO2 removal from the atmosphere. Nature Climate Change, 5 (12). pp. 1107-1113. DOI 10.1038/NCLIMATE2729 <https://doi.org/10.1038/NCLIMATE2729>. doi:10.1038/NCLIMATE2729 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/NCLIMATE2729 |
container_title |
Nature Climate Change |
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5 |
container_issue |
12 |
container_start_page |
1107 |
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1113 |
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1766158205006643200 |