Articles | Volume 21, issue 12
Atmos. Chem. Phys., 21, 9405–9416, 2021
Atmos. Chem. Phys., 21, 9405–9416, 2021

Research article 18 Jun 2021

Research article | 18 Jun 2021

The climate impact of COVID-19-induced contrail changes

Andrew Gettelman et al.

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Cited articles

Appleman, H. S.: The Formation of Exhaust Condensation Trails by Jet Aircraft, B. Am. Meteorol. Soc., 34, 14–20, 1953. a
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Chen, C. C., Gettelman, A., Craig, C., Minnis, P., and Duda, D. P.: Global Contrail Coverage Simulated by CAM5 with the Inventory of 2006 Global Aircraft Emissions, J. Adv. Model. Earth Sy., 4, M04003,, 2012. a, b, c, d
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Short summary
The COVID-19 pandemic caused significant economic disruption in 2020 and severely impacted air traffic. We use a climate model to evaluate the effect of the reductions in aviation on climate in 2020. Contrails, in general, warm the planet, and COVID-19-related reductions in contrails cooled the land surface in 2020. The timing of reductions in aviation was important, and this may change how we think about the future effects of contrails.
Final-revised paper