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Transport impacts on atmosphere and climate: Shipping

Eyring, Veronika und Isaksen, I. S. A. und Berntsen, T. und Collins, W. J. und Corbett, J. J. und Endresen, O. und Grainger, R. G. und Moldanova, J. und Schlager, H. und Stevenson, D. S. (2009) Transport impacts on atmosphere and climate: Shipping. Atmospheric Environment. DOI: 10.1016/j.atmosenv.2009.04.059

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Offizielle URL: http://dx.doi.org/10.1016/j.atmosenv.2009.04.059


Emissions of exhaust gases and particles from oceangoing ships are a significant and growing contributor to the total emissions from the transportation sector. We present an assessment of the contribution of gaseous and particulate emissions from oceangoing shipping to anthropogenic emissions and air quality. We also assess the degradation in human health and climate change created by these emissions. Regulating ship emissions requires comprehensive knowledge of current fuel consumption and emissions, understanding of their impact on atmospheric composition and climate, and projections of potential future evolutions and mitigation options. Nearly 70% of ship emissions occur within 400 km of coastlines, causing air quality problems through the formation of ground-level ozone, sulphur emissions and particulate matter in coastal areas and harbours with heavy traffic. Furthermore, ozone and aerosol precursor emissions as well as their derivative species from ships may be transported in the atmosphere over several hundreds of kilometres, and thus contribute to air quality problems further inland, even though they are emitted at sea. In addition, ship emissions impact climate. Recent studies indicate that the cooling due to altered clouds far outweighs the warming effects from greenhouse gases such as Carbon dioxide (CO2) or ozone from shipping, overall causing a negative present-day radiative forcing (RF). Current efforts to reduce sulphur and other pollutants from shipping may modify this. However, given the short residence time of sulphate compared to CO2, the climate response from sulphate is of the order decades while that of CO2 is centuries. The climatic trade-off between positive and negative radiative forcing is still a topic of scientific research, but from what is currently known, a simple cancellation of global mean forcing components is potentially inappropriate and a more comprehensive assessment metric is required. The CO2 equivalent emissions using the Global Temperature Change Potential (GTP) metric indicate that after 50 years the net global mean effect of current emissions is close to zero through cancellation of warming by CO2 and cooling by sulphate and nitrogen oxides.

Titel:Transport impacts on atmosphere and climate: Shipping
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Isaksen, I. S. A. Univ. of Oslo, Oslo, NNICHT SPEZIFIZIERT
Berntsen, T.Cicero, Oslo, NNICHT SPEZIFIZIERT
Collins, W. J.Met Office Hadley Centre, Exeter, UKNICHT SPEZIFIZIERT
Corbett, J. J.Univ. of Delaware, Newark, USANICHT SPEZIFIZIERT
Endresen, O.Det Norske Veritas, Høvik, NNICHT SPEZIFIZIERT
Grainger, R. G. Univ. of Oxford, Oxford, UKNICHT SPEZIFIZIERT
Stevenson, D. S. Univ. of Edinburgh, Edinburgh, UKNICHT SPEZIFIZIERT
Erschienen in:Atmospheric Environment
Referierte Publikation:Ja
In Open Access:Nein
In ISI Web of Science:Ja
DOI :10.1016/j.atmosenv.2009.04.059
Stichwörter:Transport, Oceangoing shipping, Ozone, Climate change, Radiative forcing, Air quality, Human health
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Verkehrssystem
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V VS - Verkehrssystem
DLR - Teilgebiet (Projekt, Vorhaben):V - Umweltwirkungen des Verkehrs (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Eyring, PD Dr. habil. Veronika
Hinterlegt am:03 Dez 2009 16:49
Letzte Änderung:07 Feb 2013 20:56

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