Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 9
Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-5983-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-5983-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 9
Research article
 | 
05 May 2026
Research article |  | 05 May 2026

Impact of present aircraft NOx and aerosol emissions on atmospheric composition and climate: results from a model intercomparison

Yann Cohen, Didier Hauglustaine, Zosia Staniaszek, Marianne Tronstad Lund, Irene Dedoussi, Sigrun Matthes, Flávio Quadros, Mattia Righi, Agnieszka Skowron, and Robin Thor

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Short summary
Non-CO2 effects from aviation on climate show large uncertainties. Among them, this study investigates the present-day impact of nitrogen oxides (through ozone and methane) and aerosols produced by aviation on atmospheric composition and therefore on climate, using a global-model intercomparison. Our results show a good consistency between the models for gaseous chemistry, but they also highlight the need for more accurate comparisons and further model development for aerosol parameterization.
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