Birdwatch Note Rating
2023-05-15 00:10:57 UTC - HELPFUL
Rated by Participant: 09177E346966EF8053E5A24AB9EA3808A7416AD137FA03A9D2C068C2784DA829
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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