It was announced from Montreal on 1 May that the International Civil Aviation Organization (ICAO) successfully concluded its first round of Global Aviation Dialogues (GLADs) on Market-based Measures (MBMs) the previous month, covering all ICAO regions. The two-day GLADs sessions were designed to share information on MBMs and their potential role in mitigating CO2 emissions from international aviation, update ICAO’s progress on the development of its global MBM scheme, and provide an important opportunity for feedback and discussion amongst Member States and relevant organizations.