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dc.contributor.authorStaniaszek, Zosia
dc.contributor.authorGriffiths, Paul T
dc.contributor.authorFolberth, Gerd A
dc.contributor.authorO’Connor, Fiona M
dc.contributor.authorAbraham, N Luke
dc.contributor.authorArchibald, Alexander T
dc.date.accessioned2022-03-31T18:00:15Z
dc.date.available2022-03-31T18:00:15Z
dc.date.issued2022-12
dc.date.submitted2021-08-27
dc.identifier.others41612-022-00247-5
dc.identifier.other247
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/335589
dc.descriptionFunder: National Centre for Atmospheric Science (NCAS); doi: https://doi.org/10.13039/501100000662
dc.descriptionFunder: Met Office Hadley Centre Climate Programme
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>Mitigation of greenhouse gas emissions is crucial for achieving the goals of the Paris climate agreement. One key gas is methane, whose representation in most climate models is limited by using prescribed surface concentrations. Here we use a new, methane emissions-driven version of the UK Earth System Model (UKESM1) and simulate a zero anthropogenic methane emissions scenario (ZAME) in order to (i) attribute the role of anthropogenic methane emissions on the Earth system and (ii) bracket the potential for theoretical maximum mitigation. We find profound, rapid and sustained impacts on atmospheric composition and climate, compared to a counterfactual projection (SSP3-7.0, the ’worst case’ scenario for methane). In ZAME, methane declines to below pre-industrial levels within 12 years and global surface ozone decreases to levels seen in the 1970s. By 2050, 690,000 premature deaths per year and 1° of warming can be attributed to anthropogenic methane in SSP3-7.0. This work demonstrates the significant maximum potential of methane emissions reductions, and their air-quality co-benefits, but also reiterates the need for action on carbon dioxide (CO<jats:sub>2</jats:sub>) emissions. We show that a methane emissions-driven treatment is essential for simulating the full Earth system impacts and feedbacks of methane emissions changes.</jats:p>
dc.languageen
dc.publisherSpringer Science and Business Media LLC
dc.subjectArticle
dc.subject/704/106/35/824
dc.subject/704/106/694/1108
dc.subject/704/106/694/682
dc.subjectarticle
dc.titleThe role of future anthropogenic methane emissions in air quality and climate
dc.typeArticle
dc.date.updated2022-03-31T18:00:14Z
prism.issueIdentifier1
prism.publicationNamenpj Climate and Atmospheric Science
prism.volume5
dc.identifier.doi10.17863/CAM.83020
dcterms.dateAccepted2022-02-21
rioxxterms.versionofrecord10.1038/s41612-022-00247-5
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidStaniaszek, Zosia [0000-0002-1789-4368]
dc.contributor.orcidGriffiths, Paul T [0000-0002-1089-340X]
dc.contributor.orcidO’Connor, Fiona M [0000-0003-2893-4828]
dc.identifier.eissn2397-3722
pubs.funder-project-idRCUK | Natural Environment Research Council (NERC) (NE/S007164/1)
cam.issuedOnline2022-03-23


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