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The thing I find hard to believe is the teeny-trails in the sky could have an effect on anything

But is it possible the chemicals are really concentrated and when they are released, they expand a lot or something?

The thing I find hard to believe is the teeny-trails in the sky could have an effect on anything But is it possible the chemicals are really concentrated and when they are released, they expand a lot or something?

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[–] -1 pt

vapor trails only happened on older, direct drive jet engines. we now use turbofan engines, they do not and cannot create vapor trails. even with the old engines vapor trails were not very common. required very specific atmospheric conditions.

[–] 0 pt

It happens all the time.

Fuck all to do with the engine. Youre thinking of exhaust.

CONtrails are compressed air and very visible and common.