A subpolar-focused stratospheric aerosol injection deployment scenario
Abstract Stratospheric aerosol injection (SAI) is a prospective climate intervention technology that would seek to abate climate change by deflecting back into space a small fraction of the incoming solar radiation. While most consideration given to SAI assumes a global intervention, this paper cons...
Published in: | Environmental Research Communications |
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crioppubl:10.1088/2515-7620/ac8cd3 2024-06-02T07:57:36+00:00 A subpolar-focused stratospheric aerosol injection deployment scenario Smith, Wake Bhattarai, Umang MacMartin, Douglas G Lee, Walker Raymond Visioni, Daniele Kravitz, Ben Rice, Christian V National Science Foundation The Indiana University Environmental Resilience Institute Prepared for Environmental Change Grand Challenge Initiative 2022 http://dx.doi.org/10.1088/2515-7620/ac8cd3 https://iopscience.iop.org/article/10.1088/2515-7620/ac8cd3 https://iopscience.iop.org/article/10.1088/2515-7620/ac8cd3/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Communications volume 4, issue 9, page 095009 ISSN 2515-7620 journal-article 2022 crioppubl https://doi.org/10.1088/2515-7620/ac8cd3 2024-05-07T14:06:24Z Abstract Stratospheric aerosol injection (SAI) is a prospective climate intervention technology that would seek to abate climate change by deflecting back into space a small fraction of the incoming solar radiation. While most consideration given to SAI assumes a global intervention, this paper considers an alternative scenario whereby SAI might be deployed only in the subpolar regions. Subpolar deployment would quickly envelope the poles as well and could arrest or reverse ice and permafrost melt at high latitudes. This would yield global benefit by retarding sea level rise. Given that effective SAI deployment could be achieved at much lower altitudes in these regions than would be required in the tropics, it is commonly assumed that subpolar deployment would present fewer aeronautical challenges. An SAI deployment intended to reduce average surface temperatures in both the Arctic and Antarctic regions by 2 °C is deemed here to be feasible at relatively low cost with conventional technologies. However, we do not find that such a deployment could be undertaken with a small fleet of pre-existing aircraft, nor that relegating such a program to these sparsely populated regions would obviate the myriad governance challenges that would confront any such deployment. Nevertheless, given its feasibility and potential global benefit, the prospect of subpolar-focused SAI warrants greater attention. Article in Journal/Newspaper Antarc* Antarctic Arctic Climate change Ice permafrost IOP Publishing Antarctic Arctic Environmental Research Communications 4 9 095009 |
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Abstract Stratospheric aerosol injection (SAI) is a prospective climate intervention technology that would seek to abate climate change by deflecting back into space a small fraction of the incoming solar radiation. While most consideration given to SAI assumes a global intervention, this paper considers an alternative scenario whereby SAI might be deployed only in the subpolar regions. Subpolar deployment would quickly envelope the poles as well and could arrest or reverse ice and permafrost melt at high latitudes. This would yield global benefit by retarding sea level rise. Given that effective SAI deployment could be achieved at much lower altitudes in these regions than would be required in the tropics, it is commonly assumed that subpolar deployment would present fewer aeronautical challenges. An SAI deployment intended to reduce average surface temperatures in both the Arctic and Antarctic regions by 2 °C is deemed here to be feasible at relatively low cost with conventional technologies. However, we do not find that such a deployment could be undertaken with a small fleet of pre-existing aircraft, nor that relegating such a program to these sparsely populated regions would obviate the myriad governance challenges that would confront any such deployment. Nevertheless, given its feasibility and potential global benefit, the prospect of subpolar-focused SAI warrants greater attention. |
author2 |
National Science Foundation The Indiana University Environmental Resilience Institute Prepared for Environmental Change Grand Challenge Initiative |
format |
Article in Journal/Newspaper |
author |
Smith, Wake Bhattarai, Umang MacMartin, Douglas G Lee, Walker Raymond Visioni, Daniele Kravitz, Ben Rice, Christian V |
spellingShingle |
Smith, Wake Bhattarai, Umang MacMartin, Douglas G Lee, Walker Raymond Visioni, Daniele Kravitz, Ben Rice, Christian V A subpolar-focused stratospheric aerosol injection deployment scenario |
author_facet |
Smith, Wake Bhattarai, Umang MacMartin, Douglas G Lee, Walker Raymond Visioni, Daniele Kravitz, Ben Rice, Christian V |
author_sort |
Smith, Wake |
title |
A subpolar-focused stratospheric aerosol injection deployment scenario |
title_short |
A subpolar-focused stratospheric aerosol injection deployment scenario |
title_full |
A subpolar-focused stratospheric aerosol injection deployment scenario |
title_fullStr |
A subpolar-focused stratospheric aerosol injection deployment scenario |
title_full_unstemmed |
A subpolar-focused stratospheric aerosol injection deployment scenario |
title_sort |
subpolar-focused stratospheric aerosol injection deployment scenario |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1088/2515-7620/ac8cd3 https://iopscience.iop.org/article/10.1088/2515-7620/ac8cd3 https://iopscience.iop.org/article/10.1088/2515-7620/ac8cd3/pdf |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic Climate change Ice permafrost |
genre_facet |
Antarc* Antarctic Arctic Climate change Ice permafrost |
op_source |
Environmental Research Communications volume 4, issue 9, page 095009 ISSN 2515-7620 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/2515-7620/ac8cd3 |
container_title |
Environmental Research Communications |
container_volume |
4 |
container_issue |
9 |
container_start_page |
095009 |
_version_ |
1800740775531642880 |