Negative CO2 emissions via enhanced silicate weathering in coastal environments
Negative emission technologies (NETs) target the removal of carbon dioxide (CO2) from the atmosphere, and are being actively investigated as a strategy to limit global warming to within the 1.5-2 degrees C targets of the 2015 UN climate agreement. Enhanced silicate weathering (ESW) proposes to explo...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/bfaac1ca-cebf-4f45-81b6-c05a2ef8927c 2023-05-15T17:50:33+02:00 Negative CO2 emissions via enhanced silicate weathering in coastal environments Meysman, Filip J. R. Montserrat, Francesc 2017 https://pure.au.dk/portal/da/publications/negative-co2-emissions-via-enhanced-silicate-weathering-in-coastal-environments(bfaac1ca-cebf-4f45-81b6-c05a2ef8927c).html https://doi.org/10.1098/rsbl.2016.0905 eng eng info:eu-repo/semantics/openAccess Meysman , F J R & Montserrat , F 2017 , ' Negative CO2 emissions via enhanced silicate weathering in coastal environments ' , Biology Letters , vol. 13 , no. 4 , 20160905 . https://doi.org/10.1098/rsbl.2016.0905 climate change carbon dioxide removal enhanced weathering olivine marine ecosystems FORSTERITE DISSOLUTION OLIVINE DISSOLUTION PERMEABLE SEDIMENTS OCEAN ACIDIFICATION ELECTRON-TRANSPORT TIDAL FLATS SEA-FLOOR 25-DEGREES-C EFFICIENCY KINETICS article 2017 ftuniaarhuspubl https://doi.org/10.1098/rsbl.2016.0905 2023-01-04T23:55:14Z Negative emission technologies (NETs) target the removal of carbon dioxide (CO2) from the atmosphere, and are being actively investigated as a strategy to limit global warming to within the 1.5-2 degrees C targets of the 2015 UN climate agreement. Enhanced silicate weathering (ESW) proposes to exploit the natural process of mineral weathering for the removal of CO2 from the atmosphere. Here, we discuss the potential of applying ESW in coastal environments as a climate change mitigation option. By deliberately introducing fast-weathering silicate minerals onto coastal sediments, alkalinity is released into the overlying waters, thus creating a coastal CO2 sink. Compared with other NETs, coastal ESW has the advantage that it counteracts ocean acidification, does not interfere with terrestrial land use and can be directly integrated into existing coastal management programmes with existing (dredging) technology. Yet presently, the concept is still at an early stage, and so two major research challenges relate to the efficiency and environmental impact of ESW. Dedicated experiments are needed (i) to more precisely determine the weathering rate under in situ conditions within the seabed and (ii) to evaluate the ecosystem impacts-both positive and negative-from the released weathering products. Article in Journal/Newspaper Ocean acidification Aarhus University: Research Biology Letters 13 4 20160905 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
climate change carbon dioxide removal enhanced weathering olivine marine ecosystems FORSTERITE DISSOLUTION OLIVINE DISSOLUTION PERMEABLE SEDIMENTS OCEAN ACIDIFICATION ELECTRON-TRANSPORT TIDAL FLATS SEA-FLOOR 25-DEGREES-C EFFICIENCY KINETICS |
spellingShingle |
climate change carbon dioxide removal enhanced weathering olivine marine ecosystems FORSTERITE DISSOLUTION OLIVINE DISSOLUTION PERMEABLE SEDIMENTS OCEAN ACIDIFICATION ELECTRON-TRANSPORT TIDAL FLATS SEA-FLOOR 25-DEGREES-C EFFICIENCY KINETICS Meysman, Filip J. R. Montserrat, Francesc Negative CO2 emissions via enhanced silicate weathering in coastal environments |
topic_facet |
climate change carbon dioxide removal enhanced weathering olivine marine ecosystems FORSTERITE DISSOLUTION OLIVINE DISSOLUTION PERMEABLE SEDIMENTS OCEAN ACIDIFICATION ELECTRON-TRANSPORT TIDAL FLATS SEA-FLOOR 25-DEGREES-C EFFICIENCY KINETICS |
description |
Negative emission technologies (NETs) target the removal of carbon dioxide (CO2) from the atmosphere, and are being actively investigated as a strategy to limit global warming to within the 1.5-2 degrees C targets of the 2015 UN climate agreement. Enhanced silicate weathering (ESW) proposes to exploit the natural process of mineral weathering for the removal of CO2 from the atmosphere. Here, we discuss the potential of applying ESW in coastal environments as a climate change mitigation option. By deliberately introducing fast-weathering silicate minerals onto coastal sediments, alkalinity is released into the overlying waters, thus creating a coastal CO2 sink. Compared with other NETs, coastal ESW has the advantage that it counteracts ocean acidification, does not interfere with terrestrial land use and can be directly integrated into existing coastal management programmes with existing (dredging) technology. Yet presently, the concept is still at an early stage, and so two major research challenges relate to the efficiency and environmental impact of ESW. Dedicated experiments are needed (i) to more precisely determine the weathering rate under in situ conditions within the seabed and (ii) to evaluate the ecosystem impacts-both positive and negative-from the released weathering products. |
format |
Article in Journal/Newspaper |
author |
Meysman, Filip J. R. Montserrat, Francesc |
author_facet |
Meysman, Filip J. R. Montserrat, Francesc |
author_sort |
Meysman, Filip J. R. |
title |
Negative CO2 emissions via enhanced silicate weathering in coastal environments |
title_short |
Negative CO2 emissions via enhanced silicate weathering in coastal environments |
title_full |
Negative CO2 emissions via enhanced silicate weathering in coastal environments |
title_fullStr |
Negative CO2 emissions via enhanced silicate weathering in coastal environments |
title_full_unstemmed |
Negative CO2 emissions via enhanced silicate weathering in coastal environments |
title_sort |
negative co2 emissions via enhanced silicate weathering in coastal environments |
publishDate |
2017 |
url |
https://pure.au.dk/portal/da/publications/negative-co2-emissions-via-enhanced-silicate-weathering-in-coastal-environments(bfaac1ca-cebf-4f45-81b6-c05a2ef8927c).html https://doi.org/10.1098/rsbl.2016.0905 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Meysman , F J R & Montserrat , F 2017 , ' Negative CO2 emissions via enhanced silicate weathering in coastal environments ' , Biology Letters , vol. 13 , no. 4 , 20160905 . https://doi.org/10.1098/rsbl.2016.0905 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rsbl.2016.0905 |
container_title |
Biology Letters |
container_volume |
13 |
container_issue |
4 |
container_start_page |
20160905 |
_version_ |
1766157358636990464 |