Glacier geoengineering to address sea-level rise: A geotechnical approach
It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equit...
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KeAi Communications Co., Ltd.
2020
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Online Access: | https://doi.org/10.1016/j.accre.2020.11.008 https://doaj.org/article/e39d2cac7a664f7cb7a7f276870d5bdf |
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ftdoajarticles:oai:doaj.org/article:e39d2cac7a664f7cb7a7f276870d5bdf 2023-05-15T13:40:35+02:00 Glacier geoengineering to address sea-level rise: A geotechnical approach Andrew Lockley Michael Wolovick Bowie Keefer Rupert Gladstone Li-Yun Zhao John C. Moore 2020-12-01T00:00:00Z https://doi.org/10.1016/j.accre.2020.11.008 https://doaj.org/article/e39d2cac7a664f7cb7a7f276870d5bdf EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674927820300940 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2020.11.008 https://doaj.org/article/e39d2cac7a664f7cb7a7f276870d5bdf Advances in Climate Change Research, Vol 11, Iss 4, Pp 401-414 (2020) Climate intervention Targeted geoengineering Antarctica Greenland Glaciers Sea level rise Meteorology. Climatology QC851-999 Social sciences (General) H1-99 article 2020 ftdoajarticles https://doi.org/10.1016/j.accre.2020.11.008 2022-12-31T15:06:02Z It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equitable mitigation from rising seas. Ice streams control draining of ice sheets; glacier retreat or acceleration serves to greatly increase potential sea level rise. While various climatic geoengineering approaches have been considered, serious consideration of geotechnical approaches has been limited – particularly regarding glaciers. This study summarises novel and extant geotechnical techniques for glacier restraint, identifying candidates for further research. These include draining or freezing the bed; altering surface albedo; creating obstacles: retaining snow; stiffening shear margins with ice; blocking warm sea water entry; thickening ice shelves (increasing buttressing, and strengthening fractured shelves against disintegration); as well as using regional climate engineering or local cloud seeding to cool the glacier or add snow. Not all of these ideas are judged reasonable or feasible, and even fewer are likely to be found to be advisable after further consideration. By describing and evaluating the potential and risks of a large menu of responses – even apparently hopeless ones – we can increase the chances of finding one that works in times of need. Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Ice Shelves Directory of Open Access Journals: DOAJ Articles Greenland Advances in Climate Change Research 11 4 401 414 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Climate intervention Targeted geoengineering Antarctica Greenland Glaciers Sea level rise Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
spellingShingle |
Climate intervention Targeted geoengineering Antarctica Greenland Glaciers Sea level rise Meteorology. Climatology QC851-999 Social sciences (General) H1-99 Andrew Lockley Michael Wolovick Bowie Keefer Rupert Gladstone Li-Yun Zhao John C. Moore Glacier geoengineering to address sea-level rise: A geotechnical approach |
topic_facet |
Climate intervention Targeted geoengineering Antarctica Greenland Glaciers Sea level rise Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
description |
It is remarkable that the high-end sea level rise threat over the next few hundred years comes almost entirely from only a handful of ice streams and large glaciers. These occupy a few percent of ice sheets’ coastline. Accordingly, spatially limited interventions at source may provide globally-equitable mitigation from rising seas. Ice streams control draining of ice sheets; glacier retreat or acceleration serves to greatly increase potential sea level rise. While various climatic geoengineering approaches have been considered, serious consideration of geotechnical approaches has been limited – particularly regarding glaciers. This study summarises novel and extant geotechnical techniques for glacier restraint, identifying candidates for further research. These include draining or freezing the bed; altering surface albedo; creating obstacles: retaining snow; stiffening shear margins with ice; blocking warm sea water entry; thickening ice shelves (increasing buttressing, and strengthening fractured shelves against disintegration); as well as using regional climate engineering or local cloud seeding to cool the glacier or add snow. Not all of these ideas are judged reasonable or feasible, and even fewer are likely to be found to be advisable after further consideration. By describing and evaluating the potential and risks of a large menu of responses – even apparently hopeless ones – we can increase the chances of finding one that works in times of need. |
format |
Article in Journal/Newspaper |
author |
Andrew Lockley Michael Wolovick Bowie Keefer Rupert Gladstone Li-Yun Zhao John C. Moore |
author_facet |
Andrew Lockley Michael Wolovick Bowie Keefer Rupert Gladstone Li-Yun Zhao John C. Moore |
author_sort |
Andrew Lockley |
title |
Glacier geoengineering to address sea-level rise: A geotechnical approach |
title_short |
Glacier geoengineering to address sea-level rise: A geotechnical approach |
title_full |
Glacier geoengineering to address sea-level rise: A geotechnical approach |
title_fullStr |
Glacier geoengineering to address sea-level rise: A geotechnical approach |
title_full_unstemmed |
Glacier geoengineering to address sea-level rise: A geotechnical approach |
title_sort |
glacier geoengineering to address sea-level rise: a geotechnical approach |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.accre.2020.11.008 https://doaj.org/article/e39d2cac7a664f7cb7a7f276870d5bdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica glacier Greenland Ice Shelves |
genre_facet |
Antarc* Antarctica glacier Greenland Ice Shelves |
op_source |
Advances in Climate Change Research, Vol 11, Iss 4, Pp 401-414 (2020) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674927820300940 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2020.11.008 https://doaj.org/article/e39d2cac7a664f7cb7a7f276870d5bdf |
op_doi |
https://doi.org/10.1016/j.accre.2020.11.008 |
container_title |
Advances in Climate Change Research |
container_volume |
11 |
container_issue |
4 |
container_start_page |
401 |
op_container_end_page |
414 |
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1766137339570028544 |