Compensate Eurobonus members CO2 emissions as before

Use travellers feces from flights as a bioproduct. As fuel or to something else useful.

Free reebooking to earlier flight when avilable. Result in filling up seats, and making it more likely to fill up seats on later flights

Option to make a plant a tree donation. By having a partnership with a existing tree planting project.

Use real cutlery as disposable cutlery is not sustainable, not even wood.

More level points to trips that are more sustainable and have less legs and layovers to promote more direct travel.