Birdwatch Note Rating
2024-11-26 20:32:00 UTC - HELPFUL
Rated by Participant: 4EE70B6898A70F34D8E87E11F143EDD59E04ABF2D93DBCADE89B7BA4766B9829
Participant Details
Original Note:
Persistent contrails occur when the humidity of the atmosphere is high, and the contrail ice particles continue to grow by taking up water from the surrounding atmosphere. These can extend for large distances and may last for hours. https://www.faa.gov/sites/faa.gov/files/regulations_policies/policy_guidance/envir_policy/contrails.pdf Persistent contrail photos through history: https://contrailscience.com/contrail-photos-through-history/
All Note Details