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Titel |
Two hundred fifty years of aerosols and climate: the end of the age of aerosols |
VerfasserIn |
S. J. Smith, T. C. Bond |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7316
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Digitales Dokument |
URL |
Erschienen |
In: Atmospheric Chemistry and Physics ; 14, no. 2 ; Nr. 14, no. 2 (2014-01-20), S.537-549 |
Datensatznummer |
250118290
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Publikation (Nr.) |
copernicus.org/acp-14-537-2014.pdf |
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Zusammenfassung |
Carbonaceous and sulfur aerosols have a substantial global and regional
influence on climate, resulting in a net cooling to date, in addition to
their impact on health and ecosystems. The magnitude of this influence has
changed substantially over the past and is expected to continue to change
into the future. An integrated picture of the changing climatic influence of
black carbon, organic carbon and sulfate over the period 1850 through 2100,
focusing on uncertainty, is presented using updated historical inventories
and a coordinated set of emission projections. We describe, in detail, the
aerosol emissions from the RCP4.5 scenario and its associated reference
scenario. While aerosols have had a substantial impact on climate over the
past century, we show that, by the end of the 21st century, aerosols
will likely be only a minor contributor to radiative forcing due to
increases in greenhouse gas forcing and a net global decrease in pollutant
emissions. This outcome is even more certain under a successful
implementation of a policy to limit greenhouse gas emissions as low-carbon
energy technologies that do not emit appreciable aerosol or SO2 are
deployed. |
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