RE: Persistent contrails, just normal?

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The contrails (including persistent ones) contain water but also different kinds of emmissions from the airplane, like sulfur dioxide and other gases. Not sure if it differs very much from typical car exhaust gas though, but nobody wants to get any exhaust on themselves.

The persistent contrails are persistend due to environment the contrail is in. You can even see two planes flying in the sky while one is leaving a short-lived contrail and the second one has a persistent contrail. This might seem weird, but the distance of the two planes can be kilometers/miles, even though you see them both at once. They might be flying in completely different altitudes, but it's hard to know when you're standing on the ground :)

Hearing about microplastics is special! Not sure if those should be in the contrails, but microplastics are a constantly growing issue. We're having microplastics in the oceans, lakes, in our waste water, at worst even in our drinking water. There's microplastics in the ground and we might have some microplastic-particls in the air too. I would be surprising if there'd naturally be microplastics in the contrail, but microplastics can be found almost anywhere, so that alone is terrifying.

Mainstream media is not discussing contrails much, but they actually are doing that! The main issue with persistent contrails is how it affects the environment, as the contrails are "man made clouds" and having a lot of persistent contrails might affect the climate. Scientists in the field are trying to find ways to avoid persistent contrails.



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