Transboundary effects from idealized regional geoengineering
Regional geoengineering, by reflecting sunlight over a very limited spatial domain, might be considered as a means to target specific regional impacts of climate change. One of the obvious concerns raised by such approaches is the extent to which the resulting effects would be detectable well beyond...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Environmental Research Communications |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2515-7620/acf441 |
| _version_ | 1797683959786635264 |
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| author | Douglas G MacMartin Ben Kravitz Paul B Goddard |
| author_facet | Douglas G MacMartin Ben Kravitz Paul B Goddard |
| author_sort | Douglas G MacMartin |
| collection | DOAJ |
| description | Regional geoengineering, by reflecting sunlight over a very limited spatial domain, might be considered as a means to target specific regional impacts of climate change. One of the obvious concerns raised by such approaches is the extent to which the resulting effects would be detectable well beyond the targeted region (e.g. in neighbouring countries). A few studies have explored this question for targeted regions that are still comparatively large. We consider idealized simulations with increased ocean albedo over relatively small domains; the Gulf of Mexico (0.23% of Earth's surface) and over the Australian Great Barrier Reef (0.07%), both with negligible global radiative forcing. Applied over these very small domains, the only statistically significant non-local changes we find are some limited reduction on summer precipitation in Florida in the Gulf of Mexico case (adjacent to the targeted region). The lack of transboundary effects suggests that governance needs for such targeted interventions are quite distinct from those for more global sunlight reflection. |
| first_indexed | 2024-03-12T00:23:25Z |
| format | Article |
| id | doaj.art-c325e789218b474883c99224cd30b521 |
| institution | Directory Open Access Journal |
| issn | 2515-7620 |
| language | English |
| last_indexed | 2024-03-12T00:23:25Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Communications |
| spelling | doaj.art-c325e789218b474883c99224cd30b5212023-09-15T12:07:58ZengIOP PublishingEnvironmental Research Communications2515-76202023-01-015909100410.1088/2515-7620/acf441Transboundary effects from idealized regional geoengineeringDouglas G MacMartin0https://orcid.org/0000-0003-1987-9417Ben Kravitz1https://orcid.org/0000-0001-6318-1150Paul B Goddard2https://orcid.org/0000-0002-4954-8988Sibley School of Mechanical and Aerospace Engineering, Cornell University , Ithaca NY 14850, United States of AmericaDepartment of Earth and Atmospheric Science, Indiana University , Bloomington, IN, United States of America; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory , Richland, WA, United States of AmericaDepartment of Earth and Atmospheric Science, Indiana University , Bloomington, IN, United States of AmericaRegional geoengineering, by reflecting sunlight over a very limited spatial domain, might be considered as a means to target specific regional impacts of climate change. One of the obvious concerns raised by such approaches is the extent to which the resulting effects would be detectable well beyond the targeted region (e.g. in neighbouring countries). A few studies have explored this question for targeted regions that are still comparatively large. We consider idealized simulations with increased ocean albedo over relatively small domains; the Gulf of Mexico (0.23% of Earth's surface) and over the Australian Great Barrier Reef (0.07%), both with negligible global radiative forcing. Applied over these very small domains, the only statistically significant non-local changes we find are some limited reduction on summer precipitation in Florida in the Gulf of Mexico case (adjacent to the targeted region). The lack of transboundary effects suggests that governance needs for such targeted interventions are quite distinct from those for more global sunlight reflection.https://doi.org/10.1088/2515-7620/acf441solar geoengineeringsolar radiation modificationregional geoengineering |
| spellingShingle | Douglas G MacMartin Ben Kravitz Paul B Goddard Transboundary effects from idealized regional geoengineering Environmental Research Communications solar geoengineering solar radiation modification regional geoengineering |
| title | Transboundary effects from idealized regional geoengineering |
| title_full | Transboundary effects from idealized regional geoengineering |
| title_fullStr | Transboundary effects from idealized regional geoengineering |
| title_full_unstemmed | Transboundary effects from idealized regional geoengineering |
| title_short | Transboundary effects from idealized regional geoengineering |
| title_sort | transboundary effects from idealized regional geoengineering |
| topic | solar geoengineering solar radiation modification regional geoengineering |
| url | https://doi.org/10.1088/2515-7620/acf441 |
| work_keys_str_mv | AT douglasgmacmartin transboundaryeffectsfromidealizedregionalgeoengineering AT benkravitz transboundaryeffectsfromidealizedregionalgeoengineering AT paulbgoddard transboundaryeffectsfromidealizedregionalgeoengineering |