The European Green Sky Directorate (EGSD), part of EUROCONTROL, is harnessing the Agency’s data, innovation capabilities and operational experience to work with other aviation stakeholders towards the common target of a European Green Sky. Traffic is growing and pressure to decarbonise the aviation sector is still high on all political agendas. Requests for more expertise, data and tools are increasing at a time when EUROCONTROL must implement efficiency measures to maintain the cost base. New technologies impacting the air traffic management (ATM) network such as electric-, hybrid and hydrogen-powered aircraft will come into service in the coming years. Addressing environmental challenges is crucial to maintain EUROCONTROL’s capability and credibility to support its wide range of stakeholders. (....)