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Article: Potential ecological impacts of climate intervention by reflecting sunlight to cool Earth

TitlePotential ecological impacts of climate intervention by reflecting sunlight to cool Earth
Authors
Keywordsanthropogenic climate change
solar radiation modification
stratospheric aerosol intervention
ecosystem
biodiversity
Issue Date2021
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
Citation
Proceedings of the National Academy of Sciences, 2021, v. 118 n. 15, p. article no. e1921854118 How to Cite?
AbstractAs the effects of anthropogenic climate change become more severe, several approaches for deliberate climate intervention to reduce or stabilize Earth’s surface temperature have been proposed. Solar radiation modification (SRM) is one potential approach to partially counteract anthropogenic warming by reflecting a small proportion of the incoming solar radiation to increase Earth’s albedo. While climate science research has focused on the predicted climate effects of SRM, almost no studies have investigated the impacts that SRM would have on ecological systems. The impacts and risks posed by SRM would vary by implementation scenario, anthropogenic climate effects, geographic region, and by ecosystem, community, population, and organism. Complex interactions among Earth’s climate system and living systems would further affect SRM impacts and risks. We focus here on stratospheric aerosol intervention (SAI), a well-studied and relatively feasible SRM scheme that is likely to have a large impact on Earth’s surface temperature. We outline current gaps in knowledge about both helpful and harmful predicted effects of SAI on ecological systems. Desired ecological outcomes might also inform development of future SAI implementation scenarios. In addition to filling these knowledge gaps, increased collaboration between ecologists and climate scientists would identify a common set of SAI research goals and improve the communication about potential SAI impacts and risks with the public. Without this collaboration, forecasts of SAI impacts will overlook potential effects on biodiversity and ecosystem services for humanity.
DescriptionHybrid open access
Persistent Identifierhttp://hdl.handle.net/10722/300975
ISSN
2023 Impact Factor: 9.4
2023 SCImago Journal Rankings: 3.737
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZarnetske, PL-
dc.contributor.authorGurevitch, J-
dc.contributor.authorFranklin, J-
dc.contributor.authorGroffman, PM-
dc.contributor.authorHarrison, CS-
dc.contributor.authorHellmann, JJ-
dc.contributor.authorHoffman, FM-
dc.contributor.authorKothari, S-
dc.contributor.authorRobock, A-
dc.contributor.authorTilmes, S-
dc.contributor.authorVisioni, D-
dc.contributor.authorWu, J-
dc.contributor.authorXia, L-
dc.contributor.authorYang, CE-
dc.date.accessioned2021-07-06T03:12:49Z-
dc.date.available2021-07-06T03:12:49Z-
dc.date.issued2021-
dc.identifier.citationProceedings of the National Academy of Sciences, 2021, v. 118 n. 15, p. article no. e1921854118-
dc.identifier.issn0027-8424-
dc.identifier.urihttp://hdl.handle.net/10722/300975-
dc.descriptionHybrid open access-
dc.description.abstractAs the effects of anthropogenic climate change become more severe, several approaches for deliberate climate intervention to reduce or stabilize Earth’s surface temperature have been proposed. Solar radiation modification (SRM) is one potential approach to partially counteract anthropogenic warming by reflecting a small proportion of the incoming solar radiation to increase Earth’s albedo. While climate science research has focused on the predicted climate effects of SRM, almost no studies have investigated the impacts that SRM would have on ecological systems. The impacts and risks posed by SRM would vary by implementation scenario, anthropogenic climate effects, geographic region, and by ecosystem, community, population, and organism. Complex interactions among Earth’s climate system and living systems would further affect SRM impacts and risks. We focus here on stratospheric aerosol intervention (SAI), a well-studied and relatively feasible SRM scheme that is likely to have a large impact on Earth’s surface temperature. We outline current gaps in knowledge about both helpful and harmful predicted effects of SAI on ecological systems. Desired ecological outcomes might also inform development of future SAI implementation scenarios. In addition to filling these knowledge gaps, increased collaboration between ecologists and climate scientists would identify a common set of SAI research goals and improve the communication about potential SAI impacts and risks with the public. Without this collaboration, forecasts of SAI impacts will overlook potential effects on biodiversity and ecosystem services for humanity.-
dc.languageeng-
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org-
dc.relation.ispartofProceedings of the National Academy of Sciences-
dc.rightsProceedings of the National Academy of Sciences. Copyright © National Academy of Sciences.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectanthropogenic climate change-
dc.subjectsolar radiation modification-
dc.subjectstratospheric aerosol intervention-
dc.subjectecosystem-
dc.subjectbiodiversity-
dc.titlePotential ecological impacts of climate intervention by reflecting sunlight to cool Earth-
dc.typeArticle-
dc.identifier.emailWu, J: jinwu@hku.hk-
dc.identifier.authorityWu, J=rp02509-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1073/pnas.1921854118-
dc.identifier.pmid33876741-
dc.identifier.pmcidPMC8053992-
dc.identifier.scopuseid_2-s2.0-85104248690-
dc.identifier.hkuros323341-
dc.identifier.volume118-
dc.identifier.issue15-
dc.identifier.spagearticle no. e1921854118-
dc.identifier.epagearticle no. e1921854118-
dc.identifier.isiWOS:000641176100023-
dc.publisher.placeUnited States-

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