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Integrating aviation’s non-CO₂ effects into EU ETS: Impact of CO₂e accounting on operational and technological climate mitigation measures
Citation Link: https://doi.org/10.15480/882.17007
Publikationstyp
Conference Paper
Date Issued
2025-09
Sprache
English
TORE-DOI
Journal
Volume
95
Start Page
193
End Page
200
Citation
27th Euro Working Group on Transportation Annual Meeting, EWGT2025
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
ISSN
23521457
To comply with defined ambitious climate goals, technical and operational improvements are required to reduce the climate impact of aviation. Non-CO₂ emissions contribute to a majority of aviation’s total effect and a reduction of the associated climate impact is often associated with an increase in fuel consumption and CO₂ effects. These trade-offs typically result in higher operating costs, which create a lack of economic incentive to pursue such measures, ultimately slowing implementation. Therefore, this study investigates implications from a market-based policy scheme designed to support the implementation of climate mitigation strategies by internalizing non-CO₂ effects. An extension of the EU ETS to account for non-CO₂ effects in terms of CO<inf>2</inf> equivalents is modeled and resulting climate mitigation potentials and operating cost changes are analyzed. The results demonstrate the suitability of an extension of the existing accounting to non-CO₂ effects as this reduces cost in relation to the reference without measure implementation. Furthermore, benefits of operational climate mitigation measures are demonstrated in comparison to the use of sustainable fuels. Technical efficiency improvements can further help to increase mitigation potentials and reduce operating cost, while reduced accounting shares can help to limit cost and ticket price increase.
Subjects
accounting
air transport
climate mitigation
CO2 equivalents
EU ETS
non-CO2 effects
DDC Class
629.13: Aviation Engineering
333.7: Natural Resources, Energy and Environment
658: General Managament
Publication version
publishedVersion
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Name
1-s2.0-S2352146526000876-main.pdf
Type
Main Article
Size
760.25 KB
Format
Adobe PDF