Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification
peer reviewed Enhancement of ocean alkalinity using calcium compounds, e.g., lime has been proposed to mitigate further increase of atmospheric CO2 and ocean acidification due to anthropogenic CO2 emissions. Using a global model, we show that such alkalinization has the potential to preserve pH and...
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Online Access: | https://orbi.uliege.be/handle/2268/160423 https://doi.org/10.1002/2013GL057981 |
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ftorbi:oai:orbi.ulg.ac.be:2268/160423 2024-04-21T08:09:32+00:00 Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification Ilyina, Tatiana Wolf-Gladrow, Dieter Munhoven, Guy Heinze, Christoph Laboratoire de Physique Atmosphérique et Planétaire 2013 https://orbi.uliege.be/handle/2268/160423 https://doi.org/10.1002/2013GL057981 en eng Wiley http://dx.doi.org/10.1002/2013GL057981 urn:issn:0094-8276 urn:issn:1944-8007 https://orbi.uliege.be/handle/2268/160423 info:hdl:2268/160423 doi:10.1002/2013GL057981 scopus-id:2-s2.0-84887704011 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Geophysical Research Letters, 40 (22), 5909-5914 (2013) artificial ocean alkalinization mitigation potential modeling ocean biogeochemistry Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2013 ftorbi https://doi.org/10.1002/2013GL057981 2024-03-27T14:58:20Z peer reviewed Enhancement of ocean alkalinity using calcium compounds, e.g., lime has been proposed to mitigate further increase of atmospheric CO2 and ocean acidification due to anthropogenic CO2 emissions. Using a global model, we show that such alkalinization has the potential to preserve pH and the saturation state of carbonate minerals at close to today's values. Effects of alkalinization persist after termination: Atmospheric CO2 and pH do not return to unmitigated levels. Only scenarios in which large amounts of alkalinity (i.e., in a ratio of 2:1 with respect to emitted CO2) are added over large ocean areas can boost oceanic CO2 uptake sufficiently to avoid further ocean acidification on the global scale, thereby elevating some key biogeochemical parameters, e.g., pH significantly above preindustrial levels. Smaller-scale alkalinization could counteract ocean acidification on a subregional or even local scale, e.g., in upwelling systems. The decrease of atmospheric CO2 would then be a small side effect. Article in Journal/Newspaper Ocean acidification University of Liège: ORBi (Open Repository and Bibliography) Geophysical Research Letters 40 22 5909 5914 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
artificial ocean alkalinization mitigation potential modeling ocean biogeochemistry Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
artificial ocean alkalinization mitigation potential modeling ocean biogeochemistry Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Ilyina, Tatiana Wolf-Gladrow, Dieter Munhoven, Guy Heinze, Christoph Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
topic_facet |
artificial ocean alkalinization mitigation potential modeling ocean biogeochemistry Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed Enhancement of ocean alkalinity using calcium compounds, e.g., lime has been proposed to mitigate further increase of atmospheric CO2 and ocean acidification due to anthropogenic CO2 emissions. Using a global model, we show that such alkalinization has the potential to preserve pH and the saturation state of carbonate minerals at close to today's values. Effects of alkalinization persist after termination: Atmospheric CO2 and pH do not return to unmitigated levels. Only scenarios in which large amounts of alkalinity (i.e., in a ratio of 2:1 with respect to emitted CO2) are added over large ocean areas can boost oceanic CO2 uptake sufficiently to avoid further ocean acidification on the global scale, thereby elevating some key biogeochemical parameters, e.g., pH significantly above preindustrial levels. Smaller-scale alkalinization could counteract ocean acidification on a subregional or even local scale, e.g., in upwelling systems. The decrease of atmospheric CO2 would then be a small side effect. |
author2 |
Laboratoire de Physique Atmosphérique et Planétaire |
format |
Article in Journal/Newspaper |
author |
Ilyina, Tatiana Wolf-Gladrow, Dieter Munhoven, Guy Heinze, Christoph |
author_facet |
Ilyina, Tatiana Wolf-Gladrow, Dieter Munhoven, Guy Heinze, Christoph |
author_sort |
Ilyina, Tatiana |
title |
Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
title_short |
Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
title_full |
Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
title_fullStr |
Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
title_full_unstemmed |
Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification |
title_sort |
assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric co2 and ocean acidification |
publisher |
Wiley |
publishDate |
2013 |
url |
https://orbi.uliege.be/handle/2268/160423 https://doi.org/10.1002/2013GL057981 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Geophysical Research Letters, 40 (22), 5909-5914 (2013) |
op_relation |
http://dx.doi.org/10.1002/2013GL057981 urn:issn:0094-8276 urn:issn:1944-8007 https://orbi.uliege.be/handle/2268/160423 info:hdl:2268/160423 doi:10.1002/2013GL057981 scopus-id:2-s2.0-84887704011 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/2013GL057981 |
container_title |
Geophysical Research Letters |
container_volume |
40 |
container_issue |
22 |
container_start_page |
5909 |
op_container_end_page |
5914 |
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1796950649548570624 |