Birdwatch Note Rating
2024-11-26 20:26:44 UTC - HELPFUL
Rated by Participant: 29E5DC02B673D158167A44F682967984DC7492DB21BFF334A342930B5BA4DF4C
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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