Making Flying Actually Sustainable

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 CO2collected from ambient air. ETH researchers recently presented a breakthrough for highly efficient production.