Birdwatch Note Rating
2024-11-19 20:54:18 UTC - HELPFUL
Rated by Participant: 70BE28BFA8FE924D55794FA1837FE05C44385E5C1967E6AAFA249DDA12C1C1CE
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