Birdwatch Note Rating
2023-07-06 20:38:28 UTC - HELPFUL
Rated by Participant: AA6F86AF9F08242C9F6D7B5A690DEAD8E7050666213EE0115E71F0E8283240FF
Participant Details
Original Note:
Contrails are formed when water vapour and fine soot particulates from burning jet fuel freeze into ice crystals. In low air humidity, the crystals just dissipate. In higher humidity, they persist, and end up creating visible vapour trails over large areas of sky. https://www.bbc.co.uk/news/blogs-trending-62240071
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