>>"what do you propose the crisscrossing of trails that turn into clouds are? "

Contrails are formed when water vapour and fine soot particulates from burning jet fuel freeze into ice crystals. In low air humidity, the crystals just dissipate. In higher humidity, they persist, and end up creating visible vapour trails over large areas of sky. Those humidity differences explain why some aircraft are seen producing vapour trails while others do not.

Another easy way to debunk the "chemtrails conspiracy" -> contrails (which is the correct scientific term, while chemtrails is the conspiracy term) have existed ever since jet fuels have existed. They are not unique to America. One can see contrails EVERYWHERE on the planet (depending on the humidity and weather of the location being observed).

In the 1950s and 1960s, decades before the conspiracy theories were born, much of Britain was sprayed with airborne chemicals in a series of secret germ warfare tests. And in 1950, San Francisco was sprayed with a chemical agent from a ship to gauge the effects of a bioweapon attack on a populated area.

Chemtrails conspiracy theorists point to such secret experiments to bolster their cause. But their claims blow the historical record out of all proportion, as they claim we are constantly - and very visibly - being deliberately sprayed with tonnes of dangerous chemicals, for an ever-shifting variety of reasons.

But of course, believing the science does not seem to give you the comfort that believing a conspiracy theory would give you. Why would it? You need some theory(s) that justifies YOUR worldview - and not a theory that goes against your worldview (regardless of the factuality or the data involved).

That is the CRUX of most conspiracy theories -> they fill a psychological need for the person believing such a theory. They confirm and validate such a person's insecurities about the world and the lack of control and power that ordinary people have in an often random, chaotic existence.

So go ahead and believe whatever seems to provide you with the comfort you need to stay sane and functioning. Differnt people solve/meet their psychological/social needs in different ways. Some believe in God and religion. Some believe in the paranormal. Some believe in particular conspiracy theories. Some believe in pseudo-scientific theories. Some people believe in science. Some people believe in other people. And some people (nihilists) don't believe in anything.