Birdwatch Note Rating
2024-09-20 09:44:54 UTC - HELPFUL
Rated by Participant: 19E667D4EBCA0818C5242591F3188C758AD3B9408B7764239D63A77F6838A99E
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 water (in the form 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