Option to sort by emission when booking flights

Separate the salt and pepper from the rest of the table set. Way too often it's just thrown away.

Create an ability to share a seat in your car with other passengers on the flight. It's better than everyone riding their car.

Turn old blankets, uniforms, seat covers into bags, carpets, pillow cases, etc. Upcycle old materials into unique collectibles to sell in the EuroBonus shop.

Drop food and snack service on all domestic flights (<1 hour), only coffee, tea and water. Both plus and go

Reduce taxi time,(for larger aircraft) continuous climb and decent, optimized flightpaths, implement greener lounges (green electric), more points for greener choices.