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NATS Environmental Initiative GAIN-ing Momentum

Published on August 13th, 2025
2 Minute Read
NATS Environmental Initiative GAIN-ing Momentum

The South African Air Navigation Service Provider (ANSP), Air Traffic and Navigation Services Company (ATNS) SOC Limited is the latest to join GAIN – Green Aviation Insights – the NATS-led initiative designed to spearhead action on aviation’s contribution to climate change.

Made up of a coalition of leading ANSPs, the initiative centres around the development of the GAIN tool, the first globally collaborative data and analytics application designed specifically for ANSPs to measure airspace efficiency in a standardised way.

GAIN is designed to enable ANSPs around the world to benchmark performance, share insights, and drive more sustainable airspace management. In Europe alone, routing inefficiencies are thought to cause roughly 5-11% additional fuel burn per flight, translating to tens of millions of tonnes of CO₂ annually. By leveraging cutting-edge analytics and complex algorithms, GAIN equips ANSPs with the tools to identify airspace hotspots, set actionable targets, and benchmark performance.

NATS, alongside CAAM, skeyes, and AZANS, officially launched GAIN as a not-for-profit initiative in May this year, and with ATNS now joining the collaboration, over 10% of the world’s air traffic falls under the jurisdiction of the Founding Members. Together they have the potential to achieve annual savings of at least 450,000 tonnes of CO2 through airspace and aircraft routing improvements.

The GAIN dashboard, designed through a user-centred process, delivers tailored insights making it a powerful tool for driving targeted performance improvements.

NATS is inviting other ANSPs to join the growing GAIN community, including a zero cost, limited time opportunity from September to have early visibility of the GAIN tool ahead of its full launch in 2026.

Those that join will be able to help shape future features and connect with a global community of like-minded professionals through regular virtual sessions, insights, and an annual in-person summit, all focused on driving sustainability in aviation.

To learn more about GAIN and how organisations can get involved visit nats.aero/environment/gain

Vincent Lambercy
Vincent brings 24 years of Air Traffic Management experience to the team. Having founded FoxATM after working 17 years with ANSPs in technical and sales roles; within ANSPs and the ATM industry. He has strong technical and commercial experience in international projects.
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