Birdwatch Note Rating
2024-11-20 20:56:32 UTC - NOT_HELPFUL
Rated by Participant: BB724F357AC9D0A483B493960D4BDB5ABFFB86D920AD5AD80085687C3859F08B
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