Birdwatch Note Rating
2023-05-27 12:01:35 UTC - NOT_HELPFUL
Rated by Participant: 8624528E6571CBCEA28771BC5DD303C799366B085E386380E06A406E9131B12D
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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