Remove the disposable earphones in SAS Go. Offer them on request. Install Bluetooth audio so that pax can connect their own wireless headphones to the IFE system.

Find ways to allow tax-free purchases to be done in departing airport and to be picked up at the airport were I land. It could save a lot of weigh/fuel.

International ban on private jets. Everyone can fly commercial. With option like business and first class this should be achievable if all nations want to reduce emission

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

Make an easy solution for choosing to skip meal on flights.

Issue extra bonus and level points to passengers who decide opt out of their included meal ahead of a flight.