Birdwatch Note Rating
2024-11-26 20:14:03 UTC - HELPFUL
Rated by Participant: 636C193BBD7AB594946B9B8C7421CC957391BA98DB1EE5A14AF3F4BB52DDF673
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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