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Developments since 2005 in understanding potential environmental impacts of CO2 leakage from geological storage

Developments since 2005 in understanding potential environmental impacts of CO2 leakage from geological storage
Developments since 2005 in understanding potential environmental impacts of CO2 leakage from geological storage
This paper reviews research into the potential environmental impacts of leakage from geological storage of CO2 since the publication of the IPCC Special Report on Carbon Dioxide Capture and Storage in 2005. Possible impacts are considered on onshore (including drinking water aquifers) and offshore ecosystems. The review does not consider direct impacts on man or other land animals from elevated atmospheric CO2 levels. Improvements in our understanding of the potential impacts have come directly from CO2 storage research but have also benefitted from studies of ocean acidification and other impacts on aquifers and onshore near surface ecosystems. Research has included observations at natural CO2 sites, laboratory and field experiments and modelling. Studies to date suggest that the impacts from many lower level fault- or well-related leakage scenarios are likely to be limited spatially and temporarily and recovery may be rapid. The effects are often ameliorated by mixing and dispersion of the leakage and by buffering and other reactions; potentially harmful elements have rarely breached drinking water guidelines. Larger releases, with potentially higher impact, would be possible from open wells or major pipeline leaks but these are of lower probability and should be easier and quicker to detect and remediate.
CO2 storage, Environmental impacts, Onshore, Offshore, Aquifers
1750-5836
350-377
Jones, D.G.
1001f297-61bf-44cf-9d0c-df86d26cd9c2
Beaubien, S.E.
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Blackford, J.C.
7f099844-3de3-47fb-9e55-0b5a546ec02c
Foekema, E.M.
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Lions, J.
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De Vittor, C.
7b92612e-9177-4111-8714-7458a1621687
West, J.M.
f8bdf05c-96c5-4539-ba0b-74b83e257f70
Widdicombe, S.
e8c8e515-277a-49c5-a0f7-7a0745b1746f
Hauton, C.
7706f6ba-4497-42b2-8c6d-00df81676331
Queirós, A.M.
2dba6176-11d0-46ba-ac63-d14abcf04b71
Jones, D.G.
1001f297-61bf-44cf-9d0c-df86d26cd9c2
Beaubien, S.E.
bd2ba7d4-df14-47c4-95f6-305c70caa1be
Blackford, J.C.
7f099844-3de3-47fb-9e55-0b5a546ec02c
Foekema, E.M.
6d08b599-0ab6-4da9-8584-0b0213821d40
Lions, J.
7675b31f-772b-4395-8c92-0d468a93ea4b
De Vittor, C.
7b92612e-9177-4111-8714-7458a1621687
West, J.M.
f8bdf05c-96c5-4539-ba0b-74b83e257f70
Widdicombe, S.
e8c8e515-277a-49c5-a0f7-7a0745b1746f
Hauton, C.
7706f6ba-4497-42b2-8c6d-00df81676331
Queirós, A.M.
2dba6176-11d0-46ba-ac63-d14abcf04b71

Jones, D.G., Beaubien, S.E., Blackford, J.C., Foekema, E.M., Lions, J., De Vittor, C., West, J.M., Widdicombe, S., Hauton, C. and Queirós, A.M. (2015) Developments since 2005 in understanding potential environmental impacts of CO2 leakage from geological storage. International Journal of Greenhouse Gas Control, 40, 350-377. (doi:10.1016/j.ijggc.2015.05.032).

Record type: Article

Abstract

This paper reviews research into the potential environmental impacts of leakage from geological storage of CO2 since the publication of the IPCC Special Report on Carbon Dioxide Capture and Storage in 2005. Possible impacts are considered on onshore (including drinking water aquifers) and offshore ecosystems. The review does not consider direct impacts on man or other land animals from elevated atmospheric CO2 levels. Improvements in our understanding of the potential impacts have come directly from CO2 storage research but have also benefitted from studies of ocean acidification and other impacts on aquifers and onshore near surface ecosystems. Research has included observations at natural CO2 sites, laboratory and field experiments and modelling. Studies to date suggest that the impacts from many lower level fault- or well-related leakage scenarios are likely to be limited spatially and temporarily and recovery may be rapid. The effects are often ameliorated by mixing and dispersion of the leakage and by buffering and other reactions; potentially harmful elements have rarely breached drinking water guidelines. Larger releases, with potentially higher impact, would be possible from open wells or major pipeline leaks but these are of lower probability and should be easier and quicker to detect and remediate.

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More information

Published date: September 2015
Keywords: CO2 storage, Environmental impacts, Onshore, Offshore, Aquifers
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 383873
URI: http://eprints.soton.ac.uk/id/eprint/383873
ISSN: 1750-5836
PURE UUID: d7747c68-671d-4d29-a735-7c2cd09600d5
ORCID for C. Hauton: ORCID iD orcid.org/0000-0002-2313-4226

Catalogue record

Date deposited: 10 Nov 2015 14:52
Last modified: 28 Apr 2022 01:40

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Contributors

Author: D.G. Jones
Author: S.E. Beaubien
Author: J.C. Blackford
Author: E.M. Foekema
Author: J. Lions
Author: C. De Vittor
Author: J.M. West
Author: S. Widdicombe
Author: C. Hauton ORCID iD
Author: A.M. Queirós

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