The Scottish Government is undertaking two public consultations relating to Air Departure Tax (ADT):
Consultation 1: On the Scottish Government’s policy for an overall 50% ADT reduction by the end of the current session of the Scottish Parliament;
Consultation 2: On an assessment of the likely significant environmental impacts from the overall 50% ADT reduction policy (Strategic Environmental Assessment Environmental Report).
https://consult.scotland.gov.uk/fiscal-responsibility/air-departure-tax/
Closes 15 Sep 2017
Not directly related to cycling, but the £150 million of "lost tax" could instead be used to create comprehensive safe cycle networks for both Edinburgh and Glasgow.