As I suspected, you did not even read the article much less do research on other posts in the Chemtrail forum. Do you even know the difference between a contrail and a chemtrail? The article I posted clearly explains it. Contrails do not spread for miles and linger for up to hours. I have personally seen chemtrails, I have seen the fallout, breathed it and suffered respiratory ailments as a result - as did a number of other people.
Believe what you want - there are studies to support any government version of anything they would have us believe. There were government approved studies that told us Vioxx was safe too. Before that there were government studies that told us smoking cigarettes was safe. I am sure that the present administration could provide ample studies that would have us believe that we can print new money, borrow and spend our way out of a problem caused by overspending money we did not have in the first place.
There are studies often quoted on sites such as Sciencebasedmedicine that tell us that herbs, natural healing and alternatives to mainstream drugs are woo, ineffective and even dangerous - while no one is dying from supplements and the study approved drugs kill over 140,000 every year. And amazingly, millions of people depend on herbs and accupuncture and natual healing and actually get well.
So you can believe what "they" tell you and I will believe what I have observed and experienced.