Brussels, 14/12/2012 (Agence Europe) - EU Transport Commissioner Siim Kallas is hoping that the forty-four director generals representing the European Civil Aviation Conference (ECAC) will fully commit to implementation of the Single European Sky, urging them on 13 December to take greater ownership and responsibility for the Single European Sky to help put it in place. Next year, he said, would be critical and the Commission needs full commitment to the Single European Sky from the ECAC....