Birdwatch Note Rating
2024-11-20 20:01:42 UTC - HELPFUL
Rated by Participant: AB9EFD55D30A4BDD8D87C0FFFB1A78CE87B1B94962766859FA75C19AB1B204D8
Participant Details
Original Note:
The combination of water vapor in aircraft engine exhaust and the low ambient temperatures that often exists at high altitudes allows the formation of contrails. Contrails are composed primarily of ice crystals, and do not pose health risks to humans. https://www.faa.gov/sites/faa.gov/files/regulations_policies/policy_guidance/envir_policy/contrails.pdf
All Note Details