The project aims to address uncertainties tied to CO2, contrails, ozone, methane, and water vapor climate effects. To do so, it involves improving algorithmic climate change functions (aCCFs) by integrating diverse weather and seasonal patterns, and incorporating various climate metrics. These advancements will feed into a climate service for the aviation community. Additionally, the project will explore aviation's potential to reduce its climate impact through the development of robust flight planning algorithms. These algorithms will identify eco-efficient aircraft trajectories, assessing the associated climate impact reduction and costs.