Airbus presented three concept planes that would produce zero-emissions. All three concept planes rely on hydrogen stored in onboard tanks as the fuel source and use modified gas-turbine engines. Using hydrogen as a fuel source produces water as a byproduct, instead of carbon dioxide (CO2). According to the Environmental and Energy Study Institute, the aviation industry was responsible for 2.4% of the total CO2 emissions globally in 2018. (Link) The three concept planes include a turbofan design with a range of 2,000 miles, a turboprop design with a range of 1,000 miles, and a blended-wind body design. (Link)
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