Gary is an experienced consultant, systems engineer and programme manager and has delivered environmental sustainability strategies for aviation clients including airports, ANSPs, regulators and ANS suppliers. His previous roles include CAA Future of Flight Programme Manager, Egis Head of Aviation Sustainability, and NATS Head of ATM Infrastructure (London Area Control Centre). He currently supports the UK Civil Aviation Authority on regulatory programmes for environmental sustainability and future aviation technologies. Gary is a founding Director of envAero, an independent aviation consultancy focused on aviation sustainability and the future of flight.