The aviation sector is known as one of the most polluting means of transportation, to the point that it is the target of an anti-flying social movement called ‘flygskam’ or flight shaming. Commercial flights contribute to about 2.1 per cent of global CO2 emissions, to which are added other gas emissions like nitrogen oxide and water vapour as contrails. Most research on new technologies aim at improving flight efficiency with a wide variety of levers from aircraft design and sustainable aviation fuel (SAF) to smoother air traffic management (ATM). However, it is often forgotten that aircrafts also spend considerable time on the ground, where they are far from efficient. https://www.internationalairportreview.com/article/161670/aeon-a-keystone-to-sustainable-green-aviation/