Aviation contributes to climate change not only through CO₂ emissions, but also via non-CO₂ effects such as contrails, nitrogen oxides, aerosols and noise, which together account for a significant share of its climate impact. These effects remain poorly understood and are rarely reflected in operational decisions. At the same time, increasingly frequent extreme weather events are disrupting flights, while current tools to predict and mitigate their impacts remain fragmented across air traffic management and U-space systems.

The AIRCLINS project responds to this challenge by developing the first climate-intelligent framework for aviation. It aims to enable a sustainable, safe and resilient ATM and U-space system through two proof-of-concept toolboxes: an ATM climate impact toolbox and a U-space eco-safety toolbox. AIRCLINS advances extreme weather modelling, integrates CO₂, non-CO₂ and noise into composite environmental metrics, and improves contrail and climate impact prediction using hybrid physics-based and artificial intelligence approaches. The project lays the foundations for a future digital European sky that balances climate performance with operational resilience.