The Transportation SWATeam made the following recommendation: 

"The Transportation SWATeam kindly requests that the university incentivize the switch of mode of transport for faculty through the something of the order of university carbon credit sales fund. This could be done by both penalizing those who choose to travel via air (a tax) and rewarding those who choose lower-emitting modes of transport (telecommunication, train, car, etc.) through a subsidy.

As a SWATeam member mentioned, this program would work with reducing emissions from long-distance travel."