I strongly believe that sylphs do exist, but i also strongly believe that this website educateyourself.com is disinfo.
First, one cannot see sylphs in anyway. So if somebody comes to you saying "I took pictures of nice sylphes busting chemtrails", avoid him like the plague, he is either a bizarroid freak, a naive pathetic living in cloud-cukoo land, or a deliberatly lying disinfo-artist. There's alot of good research based on T.J.Constable and Wilhelm Reich on this website, but I can't agree with the rest. The one good point about it is: it's really funny.
But wait a minute: that doesn't mean sylphs do not exist and chemtrails do not affect the skies and maybe sylphs.
Sylph elementals are enduring what we are doing to the air: pollution, chemtrails, etc.
Because of our way to treat nature and the way we disregasrd sylphs and other nature spirits, elementals become bitter and 'fall' prey to Ahriman's seduction. Then they start to do disgusting things to annoy mankind: tornadoes, tsunamis (in accord with undines), strong destructive winds. They not only show dangerous activity, sometimes they trick us into believing they are extraterrestrials. Or else they start establishing telepathic connexion with somebody's mind and tell some scenario that they fight chemtrails and their sylph-friends are killed, whatever. It is easy to be misguided by these tricksters. They play with us. And we believe them naively!
There really is a war right over our heads: since the Christ coming bak in the 'clouds' (etheric realm), some good elementals came in enforcement to fight the Dragon and its ahrimanic fallen elemental army. Most of their war deeds can be seen in the sky. However, I believe chemtrails make a lot of elemental 'fall'. Then they gain gigantic size and power. In mythology, eleemntals that got out of their proper place (in plants and vegetal life) gain gigantic size and behave in meteorological phenomena : snow, ice cold, bvlizzards and snow storms, big storms, great winds, tornadoes, etc. You can see they are very often active. They somewhat are in fury against mankind, and they're right in a limited sense.
I refer to cassiopaea: they said that the combat between STS and STO 4D wil be seen 'over our heads'. I think they refered to clouds and meteorology as indicators of this fight. Revelation calls it the battle between the angels of Michael and the Dragon. I think it is fairly accurately described in Revelation.
Best,
Druid