But that's not true either. Contrails often persist and spread if the weather conditions aloft are right for it (ice-supersaturated air). It's basic physics. They can't not persist.
Hi Mick. I just signed up so I could debunk the link you posted. I was skeptical of chemtrails as well, but after traveling around, I've observed something interesting. According to the article above, contrails are formed when it's cold and humid. I've recently moved to Malaysia where it's hot and humid. I've observed no contrails or chemtrails. Planes fly around all the time, jets, commercial liners, cessnas, helicopters, pretty much everything. I've never observed a chemtrails or contrail.
I took a trip to Singapore. Singapore is right next door to Malaysia. Same weather. I see chemtrails everywhere. I see the planes doing it. If you have an explanation, feel free...