Birdwatch Note Rating
2024-11-30 13:40:18 UTC - HELPFUL
Rated by Participant: 1069EFFFAF74E891175F7A0C2C602456C7E4F23D69855BC09B57989B1FE6354E
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