Birdwatch Note Rating
2024-11-28 16:59:24 UTC - HELPFUL
Rated by Participant: 933A2F3E4C996B184332C51521B0FEAD882FDEC3667903B588C35E37ED74B6D7
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 last for hours. https://www.faa.gov/sites/faa.gov/files/regulations_policies/policy_guidance/envir_policy/contrails.pdf Persistent contrail photos from 1991-1940: https://contrailscience.com/contrail-photos-through-history/
All Note Details