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Attributing climate change to NOx emissions

Grewe, Volker and Dahlmann, Katrin and Matthes , Sigrun and Steinbrecht, Wolfgang (2011) Attributing climate change to NOx emissions. The Third Santa Fe Conference on Global and regional Climate Variability, 31.Okt.-4.Nov.2011, Santa Fe, NM, USA. (Unpublished)

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Climate change is a challenge to society. Identifying promising mitigation measures requires a good understanding of the contribution from anthropogenic emissions, e.g. from transport (aviation, road, shipping) to climate change. Non-CO2 emissions, like NOx, perturb greenhouse gases like ozone highly non-linearly. Recent reviews have estimated the contribution from transport to climate change. Their approach uses state-of-the art numerical models and compares a base case with "all emissions" to a perturbation run with "changed emissions". But it was questioned whether this so-called "perturbation-approach" is appropriate and a "tagging approach" was instead suggested,which is an accounting system following emitted species and their chemical reaction pathways. In this study we indeed show that the contribution of road traffic to climate change via ozone formation, hence its potential mitigation gain, is systematically underestimated, when using the "perturbation approach", since the gain is partly compensated by a mitigation loss of other sectors due to increased ozone formation. Therefore, we argue that individual mitigation gains have to be regarded simultaneously with implications on other sectors.

Item URL in elib:https://elib.dlr.de/71552/
Document Type:Conference or Workshop Item (Speech)
Title:Attributing climate change to NOx emissions
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Grewe, VolkerVolker.Grewe (at) dlr.deUNSPECIFIED
Dahlmann, KatrinKatrin.Dahlmann (at) dlr.deUNSPECIFIED
Matthes , SigrunSigrun.Matthes (at) dlr.deUNSPECIFIED
Steinbrecht, WolfgangDWD HohenpeissenbergUNSPECIFIED
Date:2 November 2011
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:NOx, Ozone, Attribution, CCM, Climate-Chemistry-Interactions, Mitigation policy
Event Title:The Third Santa Fe Conference on Global and regional Climate Variability
Event Location:Santa Fe, NM, USA
Event Type:international Conference
Event Dates:31.Okt.-4.Nov.2011
Organizer:Center for Nonlinear Studies at Los Alamos National Laboratory
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Grewe, Prof. Dr. Volker
Deposited On:11 Nov 2011 13:54
Last Modified:11 Nov 2011 13:54

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