Put some pressure on Swedavia to create more EV charging in the parking and use "Green Electricity" This is more of the total experience of travelling.

In Scandi all tap water is great. Sell SAS water bottles onboard which are made to be reused = able to buy for points, pre-order as well. And then load tap water onboard.

Let people on the plane as they are seated, start with A and F, then B and E, and then C and D at last.

Collaborate with public transport companies at popular destinations to reduce car usage.

Reduce cup size with 5-10%, and stop giving napkins as a default

A lot of ground equipment is still driven by internal combustion engines, and can be upgraded to run on electric instead for better efficiency.