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Global air quality and climate

Fiore, Arlene M. und Naik , Vaishali und Spracklen, Dominick V. und Steiner , Allison und Unger , Nadine und Prather , Michael und Bergmann, Dan und Cameron-Smith , Philip J. und Cionni , Irene und Collins , William J. und Dalsøren , Stig und Eyring , Veronika und Folberth , Gerd A. und Ginoux, Paul und Horowitz, Larry W. und Josse , Béatrice und Lamarque , Jean-François und MacKenzie, Ian A. und Nagashima , Tatsuya und O'Connor , Fiona M. und Righi , Mattia und Rumbold, Steven T. und Shindell, Drew T. und Skeie , Ragnhild B. und Sudo , Kengo und Szopa, Sophie und Takemura, Toshihiko und Zeng, Guang (2012) Global air quality and climate. Chemical Society Reviews, 41, Seiten 6663-6683. DOI: 10.1039/C2CS35095E.

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Offizielle URL: http://pubs.rsc.org/en/content/articlehtml/2012/cs/c2cs35095e

Kurzfassung

Emissions of air pollutants and their precursors determine regional air quality and can alter climate. Climate change can perturb the long-range transport, chemical processing, and local meteorology that influence air pollution. We review the implications of projected changes in methane (CH4), ozone precursors (O3), and aerosols for climate (expressed in terms of the radiative forcing metric or changes in global surface temperature) and hemispheric-to-continental scale air quality. Reducing the O3 precursor CH4 would slow near-term warming by decreasing both CH4 and tropospheric O3. Uncertainty remains as to the net climate forcing from anthropogenic nitrogen oxide (NOx) emissions, which increase tropospheric O3 (warming) but also increase aerosols and decrease CH4 (both cooling). Anthropogenic emissions of carbon monoxide (CO) and non-CH4 volatile organic compounds (NMVOC) warm by increasing both O3 and CH4. Radiative impacts from secondary organic aerosols (SOA) are poorly understood. Black carbon emission controls, by reducing the absorption of sunlight in the atmosphere and on snow and ice, have the potential to slow near-term warming, but uncertainties in coincident emissions of reflective (cooling) aerosols and poorly constrained cloud indirect effects confound robust estimates of net climate impacts. Reducing sulfate and nitrate aerosols would improve air quality and lessen interference with the hydrologic cycle, but lead to warming. A holistic and balanced view is thus needed to assess how air pollution controls influence climate; a first step towards this goal involves estimating net climate impacts from individual emission sectors. Modeling and observational analyses suggest a warming climate degrades air quality (increasing surface O3 and particulate matter) in many populated regions, including during pollution episodes. Prior Intergovernmental Panel on Climate Change (IPCC) scenarios (SRES) allowed unconstrained growth, whereas the Representative Concentration Pathway (RCP) scenarios assume uniformly an aggressive reduction, of air pollutant emissions. New estimates from the current generation of chemistry–climate models with RCP emissions thus project improved air quality over the next century relative to those using the IPCC SRES scenarios. These two sets of projections likely bracket possible futures. We find that uncertainty in emission-driven changes in air quality is generally greater than uncertainty in climate-driven changes. Confidence in air quality projections is limited by the reliability of anthropogenic emission trajectories and the uncertainties in regional climate responses, feedbacks with the terrestrial biosphere, and oxidation pathways affecting O3 and SOA.

Dokumentart:Zeitschriftenbeitrag
Titel:Global air quality and climate
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Fiore, Arlene M. Columbia Univ., Palisades, NY, USA
Naik , Vaishali UCAR, Princeton, NJ, USA
Spracklen, Dominick V. Univ. of Leeds, Leeds, UK
Steiner , Allison Univ. of Michigan, Ann Arbor, MI, USA
Unger , Nadine Yale School of Forestry and Environmental Studies, New Haven, CT, USA
Prather , Michael Univ. of California, Irvine, CA, USA
Bergmann, Dan Lawrence Livermore National Lab., Livermore, CA, USA
Cameron-Smith , Philip J. Lawrence Livermore National Lab., Livermore, CA, USA
Cionni , Irene ENEA, Bologna, I
Collins , William J. Met Office, Hadley Centre, Exeter, UK
Dalsøren , Stig CICERO, Oslo, N
Eyring , Veronika DLR
Folberth , Gerd A. Met Office, Hadley Centre, Exeter, UK
Ginoux, Paul NOAA, Princeton, NJ, USA
Horowitz, Larry W. NOAA, Princeton, NJ, USA
Josse , Béatrice CNCR, Toulouse, F
Lamarque , Jean-FrançoisNCAR,Boulder, CO, USA
MacKenzie, Ian A. The Univ. of Edinburgh, UK
Nagashima , TatsuyaNational Institute for Environmental Studies, Tsukuba, J
O'Connor , Fiona M. Met Office, Hadley Centre, Exeter, UK
Righi , Mattia DLR
Rumbold, Steven T. Met Office, Hadley Centre, Exeter, UK
Shindell, Drew T. NASA, New York, NY, USA
Skeie , Ragnhild B. CICERO, Oslo, N
Sudo , Kengo Nagoya Univ., Nagoya, J
Szopa, Sophie CEA/CNRS/UVSQ, Gif-Sur-Yvette, F
Takemura, Toshihiko Kyushu Univ., Fukuoka, J
Zeng, Guang National Institute of Water and Atmospheric Research, Lauder, NZ
Datum:2012
Erschienen in:Chemical Society Reviews
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:41
DOI :10.1039/C2CS35095E
Seitenbereich:Seiten 6663-6683
Status:veröffentlicht
Stichwörter:chemistry-climate, air quality, climate change, modelling
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr, Luftfahrt, Raumfahrt und Verkehr, Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr, Raumfahrt, Luftfahrt
HGF - Programmthema:Verkehrssystem, Erdbeobachtung, ATM und Flugbetrieb
DLR - Schwerpunkt:Verkehr, Raumfahrt, Luftfahrt
DLR - Forschungsgebiet:V VS - Verkehrssystem, R EO - Erdbeobachtung, L AO - Luftverkehrsmanagement und Flugbetrieb
DLR - Teilgebiet (Projekt, Vorhaben):V - Projekt Verkehrsentwicklung und Umwelt, R - Vorhaben Atmosphären- und Klimaforschung, L - Klima, Wetter und Umwelt
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Jana Freund
Hinterlegt am:24 Sep 2012 14:17
Letzte Änderung:04 Apr 2013 16:38

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