Birdwatch Note Rating
2023-07-07 00:13:44 UTC - HELPFUL
Rated by Participant: 39483BA2C90AA357524F9CDABC63C6109F911675A5F128B2EBB39DD61441FA18
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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