Journal of Environmentally Compatible Air Transport System
Journal of Environmentally Compatible Air Transport System
JECATS
Articles | Volume 1
Articles | Volume 1
https://doi.org/10.5194/jecats-1-3-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jecats-1-3-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 1
Research article
 | 
10 Jul 2026
Research article |  | 10 Jul 2026

Concept of risk-aware contrail avoidance strategies

Audran Borella, Cameron Steer, Nicolas Bellouin, and Olivier Boucher

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Short summary
Targeted contrail avoidance consists of rerouting aircraft to minimise the formation of warming contrails. However, current predictions of contrail climate impact are highly uncertain. In this study, we show that some reroutings that were predicted to be beneficial for the climate are in fact damaging it. We further demonstrate that the risk of unintentionally damaging the climate can and should be included in the decision-making of contrail avoidance.
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