Cost of dropping off passengers to increase by £1 for most polluting mode.
15 million passenger barrier broken for the first time at a Scottish airport.
Solution will help power transport hub with green energy.
Sainsbury’s has also opened first airport store as part of wider revamp.
Airline confirms second route as it extends New York JFK service following first year success.
Year-round route to Zurich to launch next May as 10th aircraft to be based in the capital.
