Birdwatch Note Rating
2023-05-14 22:46:08 UTC - HELPFUL
Rated by Participant: E34CD955FE1617223AE9C30AC0A13382678754351E2C481F3F2AB1BA8C817577
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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