Fig. 1: Representation of the technology options considered to reduce the contribution of the European aviation sector to climate change and their associated emission contributions.
a Direct Air Capture (DAC) with permanent geological storage of CO2 to offset the climate change contribution of flight emissions (1 and 2), the supply of infrastructure and aircraft (3), the production and supply of jet fuel (4) and DAC with Carbon storage (DACCS) operations (5); b Syn-jet fuel, produced from electrolysis-based hydrogen and CO2 from DAC via Fischer-Tropsch synthesis, to mitigate flight-CO2 emissions (1), which are considered neutral in this case, and complemented with DACCS to offset the remaining climate change impacts (2 to 5). Note that black and blue arrows represent CO2 flows of fossil and atmospheric origin, respectively.
