contrails.org do a great job of explaining this and have some solid interactive tools that allow you to simulate the effect of flight plan changes: https://expl

contrails.org do a great job of explaining this and have some solid interactive tools that allow you to simulate the effect of flight plan changes: https://explore.contrails.org/explorer?time_start=2025-01&time_end=2025-12 https://explore.contrails.org/explorer?time_start=2025-01&ti...