Birdwatch Note Rating
2024-11-20 20:05:06 UTC - NOT_HELPFUL
Rated by Participant: 8F797D0A9DA55F78A1462835310B455831F06D446E1A963BC6AA7D9024255D25
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