Birdwatch Note Rating
2024-09-22 18:27:29 UTC - NOT_HELPFUL
Rated by Participant: BDDF23BE93FA3AF75F6331C91F984CCBCE2ACA0BA7F70572B0ECF403719F3D3C
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