Ocean acidification in a geoengineering context
Fundamental changes to marine chemistry are occurring because of increasing carbon dioxide (CO2) in the atmosphere. Ocean acidity (H+ concentration) and bicarbonate ion concentrations are increasing, whereas carbonate ion concentrations are decreasing. There has already been an average pH decrease o...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:91370 2023-05-15T17:49:49+02:00 Ocean acidification in a geoengineering context Williamson, Phillip Turley, Carol 2012-09-13 https://ueaeprints.uea.ac.uk/id/eprint/91370/ https://doi.org/10.1098/rsta.2012.0167 unknown Williamson, Phillip and Turley, Carol (2012) Ocean acidification in a geoengineering context. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 370 (1974). pp. 4317-4342. ISSN 1364-503X doi:10.1098/rsta.2012.0167 Article PeerReviewed 2012 ftuniveastangl https://doi.org/10.1098/rsta.2012.0167 2023-03-23T23:33:03Z Fundamental changes to marine chemistry are occurring because of increasing carbon dioxide (CO2) in the atmosphere. Ocean acidity (H+ concentration) and bicarbonate ion concentrations are increasing, whereas carbonate ion concentrations are decreasing. There has already been an average pH decrease of 0.1 in the upper ocean, and continued unconstrained carbon emissions would further reduce average upper ocean pH by approximately 0.3 by 2100. Laboratory experiments, observations and projections indicate that such ocean acidification may have ecological and biogeochemical impacts that last for many thousands of years. The future magnitude of such effects will be very closely linked to atmospheric CO2; they will, therefore, depend on the success of emission reduction, and could also be constrained by geoengineering based on most carbon dioxide removal (CDR) techniques. However, some ocean-based CDR approaches would (if deployed on a climatically significant scale) re-locate acidification from the upper ocean to the seafloor or elsewhere in the ocean interior. If solar radiation management were to be the main policy response to counteract global warming, ocean acidification would continue to be driven by increases in atmospheric CO2, although with additional temperature-related effects on CO2 and CaCO3 solubility and terrestrial carbon sequestration. Article in Journal/Newspaper Ocean acidification University of East Anglia: UEA Digital Repository Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370 1974 4317 4342 |
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University of East Anglia: UEA Digital Repository |
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Fundamental changes to marine chemistry are occurring because of increasing carbon dioxide (CO2) in the atmosphere. Ocean acidity (H+ concentration) and bicarbonate ion concentrations are increasing, whereas carbonate ion concentrations are decreasing. There has already been an average pH decrease of 0.1 in the upper ocean, and continued unconstrained carbon emissions would further reduce average upper ocean pH by approximately 0.3 by 2100. Laboratory experiments, observations and projections indicate that such ocean acidification may have ecological and biogeochemical impacts that last for many thousands of years. The future magnitude of such effects will be very closely linked to atmospheric CO2; they will, therefore, depend on the success of emission reduction, and could also be constrained by geoengineering based on most carbon dioxide removal (CDR) techniques. However, some ocean-based CDR approaches would (if deployed on a climatically significant scale) re-locate acidification from the upper ocean to the seafloor or elsewhere in the ocean interior. If solar radiation management were to be the main policy response to counteract global warming, ocean acidification would continue to be driven by increases in atmospheric CO2, although with additional temperature-related effects on CO2 and CaCO3 solubility and terrestrial carbon sequestration. |
format |
Article in Journal/Newspaper |
author |
Williamson, Phillip Turley, Carol |
spellingShingle |
Williamson, Phillip Turley, Carol Ocean acidification in a geoengineering context |
author_facet |
Williamson, Phillip Turley, Carol |
author_sort |
Williamson, Phillip |
title |
Ocean acidification in a geoengineering context |
title_short |
Ocean acidification in a geoengineering context |
title_full |
Ocean acidification in a geoengineering context |
title_fullStr |
Ocean acidification in a geoengineering context |
title_full_unstemmed |
Ocean acidification in a geoengineering context |
title_sort |
ocean acidification in a geoengineering context |
publishDate |
2012 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/91370/ https://doi.org/10.1098/rsta.2012.0167 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Williamson, Phillip and Turley, Carol (2012) Ocean acidification in a geoengineering context. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 370 (1974). pp. 4317-4342. ISSN 1364-503X doi:10.1098/rsta.2012.0167 |
op_doi |
https://doi.org/10.1098/rsta.2012.0167 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
370 |
container_issue |
1974 |
container_start_page |
4317 |
op_container_end_page |
4342 |
_version_ |
1766156308142096384 |