Projected climate change impact on oceanic acidification
Abstract Background Anthropogenic CO2 uptake by the ocean decreases the pH of seawater, leading to an 'acidification' which may have potential detrimental consequences on marine organisms 1. Ocean warming or circulation alterations induced by climate change has the potential to slowdown th...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:feee89795713410781565fd01d2f1417 2023-05-15T17:51:19+02:00 Projected climate change impact on oceanic acidification McNeil Ben I Matear Richard J 2006-06-01 https://doi.org/10.1186/1750-0680-1-2 https://doaj.org/article/feee89795713410781565fd01d2f1417 en eng BMC doi:10.1186/1750-0680-1-2 1750-0680 https://doaj.org/article/feee89795713410781565fd01d2f1417 undefined Carbon Balance and Management, Vol 1, Iss 1, p 2 (2006) anthro-bio envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2006 fttriple https://doi.org/10.1186/1750-0680-1-2 2023-01-22T19:25:23Z Abstract Background Anthropogenic CO2 uptake by the ocean decreases the pH of seawater, leading to an 'acidification' which may have potential detrimental consequences on marine organisms 1. Ocean warming or circulation alterations induced by climate change has the potential to slowdown the rate of acidification of ocean waters by decreasing the amount of CO2 uptake by the ocean 2. However, a recent study showed that climate change affected the decrease in pH insignificantly 3. Here, we examine the sensitivity of future oceanic acidification to climate change feedbacks within a coupled atmosphere-ocean model and find that ocean warming dominates the climate change feedbacks. Results Our results show that the direct decrease in pH due to ocean warming is approximately equal to but opposite in magnitude to the indirect increase in pH associated with ocean warming (ie reduced DIC concentration of the upper ocean caused by lower solubility of CO2). Conclusion As climate change feedbacks on pH approximately cancel, future oceanic acidification will closely follow future atmospheric CO2 concentrations. This suggests the only way to slowdown or mitigate the potential biological consequences of future ocean acidification is to significantly reduce fossil-fuel emissions of CO2 to the atmosphere. Article in Journal/Newspaper Ocean acidification Unknown Carbon Balance and Management 1 1 |
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anthro-bio envir McNeil Ben I Matear Richard J Projected climate change impact on oceanic acidification |
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anthro-bio envir |
description |
Abstract Background Anthropogenic CO2 uptake by the ocean decreases the pH of seawater, leading to an 'acidification' which may have potential detrimental consequences on marine organisms 1. Ocean warming or circulation alterations induced by climate change has the potential to slowdown the rate of acidification of ocean waters by decreasing the amount of CO2 uptake by the ocean 2. However, a recent study showed that climate change affected the decrease in pH insignificantly 3. Here, we examine the sensitivity of future oceanic acidification to climate change feedbacks within a coupled atmosphere-ocean model and find that ocean warming dominates the climate change feedbacks. Results Our results show that the direct decrease in pH due to ocean warming is approximately equal to but opposite in magnitude to the indirect increase in pH associated with ocean warming (ie reduced DIC concentration of the upper ocean caused by lower solubility of CO2). Conclusion As climate change feedbacks on pH approximately cancel, future oceanic acidification will closely follow future atmospheric CO2 concentrations. This suggests the only way to slowdown or mitigate the potential biological consequences of future ocean acidification is to significantly reduce fossil-fuel emissions of CO2 to the atmosphere. |
format |
Article in Journal/Newspaper |
author |
McNeil Ben I Matear Richard J |
author_facet |
McNeil Ben I Matear Richard J |
author_sort |
McNeil Ben I |
title |
Projected climate change impact on oceanic acidification |
title_short |
Projected climate change impact on oceanic acidification |
title_full |
Projected climate change impact on oceanic acidification |
title_fullStr |
Projected climate change impact on oceanic acidification |
title_full_unstemmed |
Projected climate change impact on oceanic acidification |
title_sort |
projected climate change impact on oceanic acidification |
publisher |
BMC |
publishDate |
2006 |
url |
https://doi.org/10.1186/1750-0680-1-2 https://doaj.org/article/feee89795713410781565fd01d2f1417 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Carbon Balance and Management, Vol 1, Iss 1, p 2 (2006) |
op_relation |
doi:10.1186/1750-0680-1-2 1750-0680 https://doaj.org/article/feee89795713410781565fd01d2f1417 |
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undefined |
op_doi |
https://doi.org/10.1186/1750-0680-1-2 |
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Carbon Balance and Management |
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1 |
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1766158429460627456 |