Cited by 314Geology and Paleoclimatology ResearchCO2 Sequestration and Geologic InteractionsMarine Plankton and Biogeochemistry

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

Multiple timescales for neutralization of fossil fuel CO 2

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Archer, David, Kheshgi, Haroon, Maier‐Reimer, Ernst·1997·Geophysical Research Letters

Abstract

The long term abiological sinks for anthropogenic CO 2 will be dissolution in the oceans and chemical neutralization by reaction with carbonates and basic igneous rocks. We use a detailed ocean/sediment carbon cycle model to simulate the response of the carbonate cycle in the ocean to a range of anthropogenic CO 2 release scenarios. CaCO 3 will play only a secondary role in buffering the CO 2 concentration of the atmosphere because CaCO 3 reaction uptake capacity and kinetics are limited by the dynamics of the ocean carbon cycle. Dissolution into ocean water sequesters 70–80% of the CO 2 release on a time scale of several hundred years. Chemical neutralization of CO 2 by reaction with CaCO 3 on the sea floor accounts for another 9–15% decrease in the atmospheric concentration on a time scale of 5.5–6.8 kyr. Reaction with CaCO 3 on land accounts for another 3–8%, with a time scale of 8.2 kyr. The final equilibrium with CaCO 3 leaves 7.5–8% of the CO 2 release remaining in the atmosphere. The carbonate chemistry of the oceans in contact with CaCO 3 will act to buffer atmospheric CO 2 at this higher concentration until the entire fossil fuel CO 2 release is consumed by weathering of basic igneous rocks on a time scale of 200 kyr.

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Crossref · 10.1029/97gl00168

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  1. Houghton J. T., 1990, Intergovernmental Panel on Climate Change The IPCC Scientific Assessment

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Metadata

Authors
Archer, D., Kheshgi, H., & Maier‐Reimer, E.
Affiliations
  • University of Chicago (US)
  • ExxonMobil (United States) (US)
  • Max Planck Institute for Meteorology (DE)
Venue
Geophysical Research Letters
Published
1997-02-15
Volume
24
Issue
4
Pages
405-408
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W1982477622
Cited by
314
References
24
Citations by year
2026: 8 · 2025: 10 · 2024: 11 · 2023: 13 · 2022: 14 · 2021: 23 · 2020: 11 · 2019: 5 · 2018: 6 · 2017: 11 · 2016: 6 · 2015: 15 · 2014: 14 · 2013: 16 · 2012: 13
FWCI
3.44
Type
journal article
Language
en
Open access
Locations
  • Geophysical Research Letters (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
  • Physical Sciences › Environmental Science › Environmental Engineering › CO2 Sequestration and Geologic Interactions
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
Keywords
anthropogenic CO2, ocean carbon cycle, calcium carbonate dissolution, ocean alkalinity, CO2 sequestration, fossil fuel emissions, carbonate chemistry

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