Change the paper dispensers in the lavatories, often many tissues come at a time. Get single tissue dispensers. Save paper and avoid overfilled bins that looks untidy.

In a week/ some days before a flight, do sell “stand by tickets”, to a cost of approx. Euro 50 in Europa, Euro 200 intercontinental, , to increase the cabin factor.

If you reduce the allowed weight for luggage from 23 kg to 15 kg or so, people might start to think if they really need all that stuff with them.

Change your business model to focus on sustainability footprints for your «procts», do an holistic approav from a systemic and life cycle approach, make it comparable

Give more Eurobonus point to sustainable destinations, by ranking airports and/or destination

Launch selected green flight departures with bio ticket options only, giving double EB points and double conscious traveler steps to reward collective consciousness.