I am doing an argumentative essay on chemtrails and I need some help on the opposing side (what's their agrument).

I have 2 points so far and I need three the 2 so far are:

1. Some say that the lines are contrails
2. Some say it's condensation from the jet engines when flying at high alititude/low temps.

4 answers

The smoke from rockets shot from the ground up into the sky.

??
http://en.wikipedia.org/wiki/Chemtrail_conspiracy_theory

http://www.nmsr.org/chemtrls.htm
Thanks for all the help!!
You're welcome.