# Making Flying Actually Sustainable

Published 2019-06-20 · Updated 2026-03-19 · Energy on MarketScale
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> CO2 -neutral synthetic fuels are technically feasible today and the best promise for decarbonizing aviation. The right policy instruments could turn promise into reality, writes Anthony Patt. Technologies are emerging that could make it possible to fly with renewable energy. The most important approach is using renewable energy to synthesize CO2-neutral hydrocarbon fuel out of water (H2O) and…

CO2 -neutral synthetic fuels are technically feasible today and the best promise for decarbonizing aviation. The right policy instruments could turn promise into reality, writes Anthony Patt.

Technologies are emerging that could make it possible to fly with renewable energy. The most important approach is using renewable energy to synthesize CO2-neutral hydrocarbon [fuel](https://phys.org/tags/fuel/) out of water (H2O) and CO2collected from ambient air. ETH researchers recently presented a breakthrough for highly efficient production.

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