The LCA tool is a comprehensive instrument that provides detailed insights into the entire life cycle of jet fuel greenhouse gas emissions for aviation in Saudi Arabia – from oil extraction and transportation to jet fuel production, distribution, and aircraft operation. It emphasizes the importance of each stage and the variables influencing impact estimations. Additionally, the tool allows users to perform customized assessments based on specific parameter changes (e.g., extraction practices, transportation, aircraft operation). It provides default values that users can easily adjust. Finally, it enables comparisons between different parameter changes and operational practices, and conducts scenario analyses to forecast potential environmental impacts from operational or technological changes, demonstrating the implications of assumptions and advantages over base-case scenarios.