Articles | Volume 25, issue 4
https://doi.org/10.5194/acp-25-2167-2025
https://doi.org/10.5194/acp-25-2167-2025
Research article
 | 
19 Feb 2025
Research article |  | 19 Feb 2025

Contrasting the roles of regional anthropogenic aerosols from the western and eastern hemispheres in driving the 1980–2020 Pacific multi-decadal variations

Chenrui Diao, Yangyang Xu, Aixue Hu, and Zhili Wang

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Cited articles

Allen, R. J. and Zhao, X.: Anthropogenic aerosol impacts on Pacific Coast precipitation in CMIP6 models, Environ. Res.: Climate, 1, 015005, https://doi.org/10.1088/2752-5295/ac7d68, 2022. 
Allen, R. J., Norris, J. R., and Kovilakam, M.: Influence of anthropogenic aerosols and the Pacific Decadal Oscillation on tropical belt width, Nat. Geosci., 7, 270–274, 2014. 
Allen, R. J., Vega, C., Yao, E., and Liu, W.: Impact of industrial versus biomass burning aerosols on the Atlantic Meridional Overturning Circulation, npj Clim. Atmos. Sci., 7, 1–16, 2024. 
Bellomo, K., Murphy, L. N., Cane, M. A., Clement, A. C., and Polvani, L. M.: Historical forcings as main drivers of the Atlantic multidecadal variability in the CESM large ensemble, Clim. Dynam., 50, 3687–3698, 2018. 
Booth, B. B. B., Dunstone, N. J., Halloran, P. R., Andrews, T., and Bellouin, N.: Aerosols implicated as a prime driver of twentieth-century North Atlantic climate variability, Nature, 484, 228–232, 2012. 
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Short summary
Industrial aerosol increases in Asia and reductions in North America and Europe in 1980–2020 influenced climate changes over the Pacific Ocean differently. Asian aerosols caused El Niño-like temperature patterns and slightly weakened the natural variation in the North Pacific, while reduced  emissions of western countries led to extensive warming in middle–high latitudes of the North Pacific. Human impacts on the Pacific climate may change when emission reduction occurs over Asia in the future.
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