Researcher Clifford Carnicom, journalist William Thomas and Above Top Secret's Mark Allin joined George Knapp to try and get to the bottom of chemtrails-- chemicals or biological agents said to be deliberately sprayed from planes at high altitudes. Interviewed separately in the first hour, Thomas discussed how technology & planning was developed as far back as the 1960s to combat global warming by scattering small particulates in the atmosphere. He detailed how a whistleblower known as "Deep Sky," an air traffic controller, revealed in 2001 that controllers were ordered to divert commercial flights away from Air Force craft that were involved in weather/climate modification.
Differentiating contrails from chemtrails, Thomas explained that jet contrails typically only last for a few minutes, while chemtrails stay visible in the sky for up to 4 to 8 hours. He further noted that the Space Preservation Act proposed by Cong. Dennis Kucinich in 2001, specifically sought to prohibit chemtrails. Programs such as biowarfare testing are sometimes "piggybacked" onto chemtrail missions, so that the military can track their effectiveness in making people sick, according to a whistleblower identified as "Hank."
Based on his research, Carnicom has concluded there are in fact eight different "applications" to the use of "aerosols" (the term he preferred over chemtrails): environmental modification & control, military, electromagnetic, biological, planetary & global modification, advanced surveillance, and detection of exotic propulsion (UFOs). Project HAARP has turned up in both Thomas & Carnicom's chemtrail investigations, and Carnicom suggested that ionized metallic salts found in the atmosphere could likely be connected with HAARP experiments. Offering a slightly skeptical take on the chemtrail issue, Allin opined there would be very little control at squirting aerosols at heights of 30,000 feet or higher, and the chemicals would be subject to random wind dispersals.