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CO2 equivalences for short-lived climate forcers

Deuber, Odette and Luderer, Gunnar and Sausen, R. (2014) CO2 equivalences for short-lived climate forcers. Climatic Change, pp. 651-664. Springer. doi: DOI 10.1007/s10584-013-1014-y. ISSN 0165-0009.

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Official URL: http://download.springer.com/static/pdf/374/art%253A10.1007%252Fs10584-013-1014-y.pdf?auth66=1387226944_74ea78e9c72357f0dde192c7151aad7e&ext=.pdf


With advancing climate change there is a growing need to include short-lived climate forcings in cost-efficient mitigation strategies to achieve international climate policy targets. Tools are required to compare the climate impact of perturbations with distinctively different atmospheric lifetimes and atmospheric properties. We present a generic approach for relating the climate effect of short-lived climate forcers (SLCF) to that of CO2 emissions. We distinguish between three alternative types of metric-based factors that can be used to derive CO2 equivalences for SLCF: based on forcing, activity and fossil fuel consumption.We derive numerical values for a wide range of parameter assumptions and apply the resulting generalised approach to the practical example of aviation-induced cloudiness. The evaluation of CO2 equivalences for SLCF tends to be more sensitive to SLCF specific physical uncertainties and the normative choice of a discount rate than to the choice of a physical or economic metric approach. The ability of physical metrics to approximate economic-based metrics alters with changing atmospheric concentration levels and trends. Under reference conditions, physical CO2 equivalences for SLCF provide sufficient proxies for economic ones. The latter, however, allow detailed insight into structural uncertainties. They provide CO2 equivalences for SLCF in short term strategies in the face of failing climate policies, and a temporal evolution of CO2 equivalences over time that is noticeably better in line with cost-efficient climate stabilisation.

Item URL in elib:https://elib.dlr.de/86749/
Document Type:Article
Title:CO2 equivalences for short-lived climate forcers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Deuber, OdettePotsdam Institute for Climate Impact Research, Potsdam, GermanyUNSPECIFIED
Luderer, GunnarPotsdam Institute for Climate Impact Research, Potsdam, GermanyUNSPECIFIED
Journal or Publication Title:Climatic Change
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :DOI 10.1007/s10584-013-1014-y
Page Range:pp. 651-664
Keywords:Climate change, radiative forcing, metric, CO2, contrails
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics, Transport
HGF - Program Themes:ATM and Operation (old), Transport System
DLR - Research area:Aeronautics, Transport
DLR - Program:L AO - Air Traffic Management and Operation, V VS - Verkehrssystem
DLR - Research theme (Project):L - Climate, Weather and Environment (old), V - Projekt Verkehrsentwicklung und Umwelt (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Sausen, Prof.Dr. Robert
Deposited On:16 Dec 2013 08:22
Last Modified:06 Sep 2019 15:17

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