Send electronic ticket together with general flight information when sending e-mails to customers. This will cut the sent e-mail number and reduse server energy usage.

Always aim for fully booked flights; if not, find the best solution to optimize occupancy and efficiency.

Launch selected green flight departures with bio ticket options only, giving double EB points and double conscious traveler steps to reward collective consciousness.

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.

Urban farming/green house/open oasis at CPH. Be the first to serve “hub grown” veggies in the sky.

If biofuel could be bought/added with points, people could spend their "soon-to-be-expired" points on biofuel rather than something unsustainable.