At check-in and at kiosk ask if they really need paper boarding card or can use SAS app instead.

Present sustainability data for the flight in the infotainment system, with for instance bio-fuel stats, # meals pre-selected and how much carbon emissions was saved.

Allow free rebooking on the day of departure to a shorter route or a route with less stops when available, even in low booking classes and without status.

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

In Plus and Business on long haul - hand out amenity kits by request instead of placing them on all seats.

Compensate Eurobonus members CO2 emissions as before