Chemtrails. Is there an informative discussion site out there which is not insane, paranoid, barking mad or utterly irrational?

No, conspiracy theory sites all fit those categories you mention. Best to work the other way around, start with the skeptics websites and learn the subject from the negative, then you will understand the claims being made.

No, you won't find that. Conspiracy fantasies are paranoid, barking mad and irrational by nature.

The only informative thing you'll find about chemtrails is that they don't exist. The whole thing is a schoolyard myth. No need for a lengthy discussion thread or a multi-page website for that.

The only discussion on chemtrails are insane, paranoid, and barking mad.

Cause chemtrails aren't a thing.

They are not chemtrails they are contrails.

https://en.wikipedia.org/wiki/Contrail

Here's a sensible forum where you can discuss it. http://www.internationalskeptics.com/forums/forumd...

I've never seen one. They tend to be posted strictly by conspiracy theorists, fanatics, and loonies.