Allow users to visualise their travel carbon footprint in-app. Include everything such as transportation to/from the home and destination, hotels.

Use Power-to- X technology like the danish government are planned to do on regional flights

Let the captain thank the x number of passenger on board that added bio-fuel on the ticket.

Make flight space available for package distributors ex. DHL for a fee. Might save their flight and truck if packages can go with regular airplanes.

Taxiing from and to gates from runways should be more smooth and with less fuel - using for example AI

Work for a global standard regarding personal luggage tags without the need of creating new per journey.