Birdwatch Note Rating
2023-05-15 14:32:36 UTC - HELPFUL
Rated by Participant: AEC8088C09CBB41BB11078A4FDB08A8652143C0618F8E980D2D37E6F8AC28B7A
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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