Birdwatch Note Rating
2024-12-02 06:36:36 UTC - HELPFUL
Rated by Participant: E1B8FFE3656E289C22EEA763842FE6DDF08E798B42E962F97418C0DE56306F97
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/
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