Samset, BH, Sand, M, Smith, CJ orcid.org/0000-0003-0599-4633 et al. (5 more authors) (2018) Climate Impacts From a Removal of Anthropogenic Aerosol Emissions. Geophysical Research Letters, 45 (2). pp. 1020-1029. ISSN 0094-8276
Abstract
Limiting global warming to 1.5 or 2.0°C requires strong mitigation of anthropogenic greenhouse gas (GHG) emissions. Concurrently, emissions of anthropogenic aerosols will decline, due to coemission with GHG, and measures to improve air quality. However, the combined climate effect of GHG and aerosol emissions over the industrial era is poorly constrained. Here we show the climate impacts from removing present-day anthropogenic aerosol emissions and compare them to the impacts from moderate GHG-dominated global warming. Removing aerosols induces a global mean surface heating of 0.5–1.1°C, and precipitation increase of 2.0–4.6%. Extreme weather indices also increase. We find a higher sensitivity of extreme events to aerosol reductions, per degree of surface warming, in particular over the major aerosol emission regions. Under near-term warming, we find that regional climate change will depend strongly on the balance between aerosol and GHG forcing.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018, The Authors. This is an open access article under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/) |
Keywords: | aerosols; black carbon; organic carbon; sulfate; climate change; extreme weather |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Funding Information: | Funder Grant number NERC NE/N006038/1 ECMRWF European Centre Medium No ref number NERC NE/P011160/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Jan 2018 09:59 |
Last Modified: | 25 Jun 2023 21:13 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1002/2017GL076079 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126653 |
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