QICS Paper: Detection and impacts of leakage from sub-seafloor deep geological carbon dioxide storage
Fossil fuel power generation and other industrial emissions of carbon dioxide are a threat to global climate1, yet many economies will remain reliant on these technologies for several decades. Carbon dioxide capture and storage (CCS) in deep geological formations provides an effective option to remove these emissions from the climate system. In many regions storage reservoirs are located offshore, over a kilometre or more below societally important shelf seas6. Therefore, concerns about the possibility of leakage, and potential environmental impacts, along with economics, have contributed to delaying development of operational CCS. Here we investigate the detectability and environmental impact of leakage from a controlled sub-seabed release of CO2. We show that the biological impact and footprint of this small leak analogue (<1 tonne CO2 d-1) is confined to a few tens of metres. Migration of CO2 through the shallow seabed is influenced by near-surface sediment structure, and by dissolution and re-precipitation of calcium carbonate naturally present in sediments. Results reported here advance the understanding of environmental sensitivity to leakage and identify appropriate monitoring strategies for full-scale carbon storage operations. This is a publication in Nature Climate Change, Jerry Blackford et. al. doi:10.1038/nclimate2381
nonGeographicDataset
http://www.nature.com/nclimate/journal/v4/n11/full/nclimate2381.html
description: Published as an open access journal article doi:10.1038/nclimate2381
function: download
http://www.bgs.ac.uk/ukccs/accessions/index.html#item78192
function: information
http://data.bgs.ac.uk/id/dataHolding/13606660
eng
NERC grant NE/H013962/1
geoscientificInformation
publication
2008-06-01
UKCCS
Carbon capture and storage
NGDC Deposited Data
revision
2022
NERC_DDC
2014-05
2014-09-28
publication
2014-09-28
notApplicable
See the journal publication for details
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
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