Aviation contrails carry significant social climate costs, but re-routing could deliver net gains -study

Published 22:15 on October 1, 2025 / Last updated at 22:15 on October 1, 2025 / International (Aviation/CORSIA)

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Contrail cirrus clouds formed by aircraft can impose substantial social climate costs alongside CO2 emissions, with a new study suggesting that targeted flight re-routing could cut aviation’s warming impact even when the extra fuel burn is taken into account.
Contrail cirrus clouds formed by aircraft can impose substantial social climate costs alongside CO2 emissions, with a new study suggesting that targeted flight re-routing could cut aviation’s warming impact even when the extra fuel burn is taken into account.


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