The problem with your eyes I can't really refer to.
But the thing with mixed weather situations I can confirm.
Spring feels like autumn, very cold, windy and rainy. Very rare sunshine which is not typical for march to may and not like it was this year. Cloudy for weeks. Totally grey.
In the last days we had a really sunny day with, what I would call it, a normal sky and clouds. Really deep blue sky with fluffy white clouds looking like cotton wool. And at that point I realised after a long time: this looks so normal!
It was like a wake-up. Then I realised how strong our global weather situation already is under manipulation.
It's not "the weather" anymore. It's "their" weather. And my second believe is they're using it. Against poor areas in this world to destabilize further. Or to decrease population.
Thanks for the pictures Denmark by the way. Very obvious. Especially the ones with the plane having a real contrail.
But hey: it's all about the height and temperatures, right? No wait: it's the fuels! Some planes just use fuels that spread all over the sky! It's the cheaper one, that's it. Or is it the consumption? Yeah ... ! Some planes just consume like, let's say, 100 times more fuel than others! This is IT! And then the trails just last longer because it is simply MORE fuel!
Sorry for my cynicism, but Albert Einstein was right: "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."