Birdwatch Note Rating
2024-04-03 18:57:19 UTC - HELPFUL
Rated by Participant: 1611801EE6B572822949412807FCCDF89B8E86439830F152536D716F222B1DA0
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Original Note:
At 30k-40k feet, air temperatures range from −40 to −70F https://www.britannica.com/science/temperature-stress Contrails are formed when water vapor and particulates from burning jet fuel freeze into ice crystals. In higher humidity, they persist, and end up creating visible vapor trails over large areas of sky https://science.howstuffworks.com/transport/flight/modern/what-are-chemtrails.htm https://www.aerosociety.com/news/chemtrails-debunked/
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