Birdwatch Note Rating
2024-11-20 19:47:09 UTC - HELPFUL
Rated by Participant: FB3FF6901108B0C76494E2C7A760CFA0DD98566A3648B24708BD37598F97F67C
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