Birdwatch Note Rating
2024-11-26 20:50:56 UTC - HELPFUL
Rated by Participant: 592BDF12B55AE94659446A00B7A20784605AC278080B111D37E970F958C1D3BB
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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