Birdwatch Note Rating
2023-05-14 19:09:57 UTC - HELPFUL
Rated by Participant: FDCE1FE4470B33669F34D45F9B6CB883DE6481C8083E9B6C6BBDB117B038287F
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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