NBC news: Chemtrails over California

What are Chemtrails?

Streaks of chemicals created in the air by spray systems on airplanes at any altitude. Chemicals are sprayed via planes for many purposes including crop dusting and mosquito control. Also fuel is sometimes dumped to reduce weight before landing. But within the Chemtrail observer community Chemtrails are the product of an active large scale operation.

Chemtrails are said to vary from contrails in their length of persistence.

What the hell is really going on?

Some people are reporting what they describe to be unusual activity in the sky, including jets leaving trails at low altitudes, spray lines creating X's, S's and parallel lines, lines that slowly spread to create a canopy of haze, and reports of unusual smells, tastes, and even illness related to the trails.

Also, a reddish-brown gel, dropped from low-flying aircraft, has been observed by people in the past and was even documented on Unsolved Mysteries. Samples of this substance have been alledgedly analyzed by Margareta-Erminia Cassani and found to be teaming with biological organisms.