ArticleiScience2026
Prospective water scarcity footprint under climate change applied to bio-based sustainable aviation fuel production pathways.
Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
4 authors.
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Abstract
The transition of aviation from fossil to sustainable aviation fuels (SAFs) raises concerns about its water requirements in an increasingly water-stressed world, highlighting the need for integrated water footprint assessments under climate change. This study first develops novel water scarcity footprint factors projected monthly and annually until 2099 at a 0.5° × 0.5° global resolution under eight climate change scenarios. Significant regional and temporal disparities are revealed, with future factors differing by more than 50% from historical values in many regions. Applying these dynamic factors to projected global SAF production shows that Asia contributes to more than 50% of the global future water scarcity footprint, while North America exhibits lower impacts despite high production volumes. By demonstrating that historical factors underestimate future impacts, particularly under high-emission scenarios, these findings emphasize the importance of prospective environmental assessments to ensure that energy transition does not endanger water security.
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