2023-02-01
We've all seen them - a web of jet trails in the sky that eventually dissipate to turn a lovely sky-blue day into a grey miasma.
This site has posted a number of articles about them, and several other web-sites of international renown are either devoted to them or mention them occasionally.
So are they a conspiracy theory? Evidently not; there are many days when we can observe these phenomena with our own eyes.
But what is their cause?
I don't think that anybody has yet comprehensively pin-pointed a cause, and indeed it's quite possible to consider that there may be more than one cause. However, Arthur Firstenberg (author of magnum opus The Invisible Rainbow) in his latest newsletter recounts a convincing history, and suggests that whether or not they form depends upon the particular prevailing atmospheric conditions - a suggestion that many (including myself) may find perfectly plausible.
Of course whether this is the sole cause of such phenomena globally may be another question, but it seems unlikely that we may get a definitive answer to that one any time soon.
Perhaps it may still be too early to assert that we have identified a conspiracy theory that really can be discounted!
