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| Titel |
Quantifying the impact of ocean acidification on our future climate |
| VerfasserIn |
R. J. Matear, A. Lenton |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 11, no. 14 ; Nr. 11, no. 14 (2014-07-30), S.3965-3983 |
| Datensatznummer |
250117528
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| Publikation (Nr.) |
 copernicus.org/bg-11-3965-2014.pdf |
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| Zusammenfassung |
| Ocean acidification (OA) is the consequence of rising atmospheric CO2
levels, and it is occurring in conjunction with global warming. Observational
studies show that OA will impact ocean biogeochemical cycles. Here, we use an
Earth system model under the RCP8.5 emission scenario to evaluate and
quantify the first-order impacts of OA on marine biogeochemical cycles, and
its potential feedback on our future climate. We find that OA impacts have
only a small impact on the future atmospheric CO2 (less than 45 ppm) and
global warming (less than a 0.25 K) by 2100. While the climate change
feedbacks are small, OA impacts may significantly alter the distribution of
biological production and remineralisation, which would alter the dissolved
oxygen distribution in the ocean interior. Our results demonstrate that the
consequences of OA will not be through its impact on climate change, but on
how it impacts the flow of energy in marine ecosystems, which may
significantly impact their productivity, composition and diversity. |
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