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Wide range of possible aviation demand futures after the COVID-19 pandemic

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/persons/resource/franz

Franz,  Sebastian
Potsdam Institute for Climate Impact Research;

/persons/resource/Rottoli

Rottoli,  Marianna
Potsdam Institute for Climate Impact Research;

/persons/resource/Bertram

Bertram,  Christoph
Potsdam Institute for Climate Impact Research;

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26937oa.pdf
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Zitation

Franz, S., Rottoli, M., Bertram, C. (2022): Wide range of possible aviation demand futures after the COVID-19 pandemic. - Environmental Research Letters, 17, 6, 064009.
https://doi.org/10.1088/1748-9326/ac65a4


Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_26937
Zusammenfassung
Aviation has been identified as one of the crucial hard-to-abate sectors, as especially long-range aviation will continue to depend on liquid fuels for the foreseeable future. The sector also was one of the fastest-growing emitters of fossil CO2 emissions until 2019 but had experienced sharply reduced demand during the COVID-19 pandemic, making future demand outlooks more uncertain. While past studies have looked at the variation of future aviation demands due to variations in demographics, income levels, and pricing policies, an exploration of potentially more sustainable demand futures does not yet exist. Here we use an open-source model with a detailed representation of country-level aviation demand per international/domestic and business/leisure segments to analyze a range of scenarios based on a consistent and comprehensive interpretation of the qualitative narratives related to behavioural aspects as well as the socioeconomic data from different Shared Socioeconomic Pathways (SSPs). Our results show a potential stabilization of global aviation demand at roughly twice the 2019 level in an SSP1 scenario, a weakened growth for an SSP2 scenario, while an SSP5 scenario projects an aviation future virtually unaffected by the COVID-19 shock resulting in continued high growth rates. Further results show that without specific interventions that change the past demand growth patterns, the aviation sector could grow to levels very challenging to defossilize in a sustainable manner. Therefore, policies aiming at less frequent flying seem to be an important component of long-term decarbonisation strategies, and decisions on airport extensions should carefully assess the risk of stranded infrastructure.