Earn EuroBonus points when recycling. Collaborate with apps such as Bower and Repeat in Sweden. They offer cash rewards for recycling. Why not reward points instead!

Make a “code-share” cooperation with train providers, to allow for booking a ticket from A to B with combined train-plane modality and same benefits as connecting flight

Encourage food suppliers and distributors to use more sustainable and healthy packaging in the food that gets served.

Members to chose their preferred seat in their profile and automatically be assigned this seat if available on their flight

Introduce a "minimal comfort" seating class with basic amenities and reduced seat recline, allowing more passengers per flight and lowering per-person emissions.

My personal CO2 emissions should be listed on my boarding pass in the app for each flight.