Birdwatch Note Rating
2024-09-20 11:59:14 UTC - HELPFUL
Rated by Participant: 2A45C320C94400B6488CFF22700B17A575237FA164E4C7BD224E74D3D1EFC2E6
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