Chemtrails are nothing more than a absurd made up conspiracy theory, generally from those who have to have failed school science. The chemtrail conspiracy theory says how the normal longer lasting condensation trails (contrails) from aeroplanes are “chemtrails” that include chemical or biological agents left in the sky and are dispersed for sinister purposes. Those that believe in this theory (chemtards) declare that although normal contrails disappear relatively rapidly, contrails which linger will have to consist of extra chemical substances to make them last longer. They theorize that this intent behind the chemical release could be for some threatening and not so threatening motives for example handling of solar rays, weather conditions manipulation, psychological mind games, power over the human population, biological or chemical warfare. They also claim that the chemtrails are triggering respiratory system ailments along with other medical problems in the human population.
All of the statements produced can easily be thrown out and the scientific community have spelled out contrails and disregarded the fringe movement. There's simply no evidence which the supposed chemtrails are different from normal water dependent contrails which are usually left by high-flying aeroplanes under specified atmospheric circumstances. The conspiracy theory persists in spite of experts and government agencies all over the world having regularly explained how the supposed chemtrails are merely in fact typical contrails. This doesn't appear to have made any impact on individuals who believe in the conspiracy theory.
Another way of looking at it, is that if it turned out true, then this would need to happen to be consented to by every country on the planet. Every major airline in the world would have to say yes to spray them. This might involve large numbers of aircraft pilots and also airport personnel, weather forecasters and observers, each and every University having a meteorology or atmospheric science department and each business which monitors quality of air. They would all have to say yes to stay silent. This would be an unprecedented global undertaking and co-operation that whomever is behind this, if this was true is deserving of a Nobel prize. Nobody who is convinced in the conspiracy of chemtrails (ie the chemtards) has been capable of describe how this unparalleled co-operation is operating with no one spilling the beans about it.
An additional means of thinking about it can be only the national infrastructure of dispensing the chemtrails if this was correct. It's been calculated what would be necessary to only spray the USA with the claimed chemical substances that happen to be alleged by the chemtards as being used. It was worked out that the federal government will have to plan 4 million 747 flights to propagate their chemical substances every week for it to be effective. That is 18 times additional air flights each day than in the entire US. In addition their would have to be the facilities and personal to support such a massive enterprise (that would also need to keep silent as to what they are doing). Also, this will only be for the USA plus a equivalent infrastructure will be needed for each and every nation in the world. Probably none of those believers in chemtrails may be capable of explain this.