'The conspiracy theories on this
are so convoluted'
Posted: August 27, 2001
Editor's note: Following is the U.S. military's response to citizen
concerns over suspicious aircraft contrails, often dubbed "chemtrails."
© 2001 WorldNetDaily.com
Environmental Protection Agency, with the assistance of
NASA Glenn Research Center's
Program, National Oceanic and Atmospheric
and the Federal Aviation Administration,
released a contrail fact sheet in
September of last year in response
to public inquiries.
have been a normal effect of jet aviation since its
earliest days," the report states.
"Persistent contrails are composed
of water naturally present along the aircraft flight
they do not pose health risks, contrails affect the cloudiness
of the atmosphere and may affect atmospheric temperature
climate, the report states. The
entire document may be viewed
aircraft contrails are an entirely normal occurrence of high-altitude flight, and result from an
aircraft engine emitting tiny
particles that serve as condensation
nuclei," said Kenneth Petche,
an environmental engineer with the U.S. Environmental
Protection Agency. "High-altitude water vapor
collects on these
particles, crystallizes, in turn creating
streaks of frozen water
vapor, otherwise known as contrails
from airplanes operating at
Yosemite area is in the
center of a triangle framed by
numerous airports and military bases, said
Capt. Thomas Crossen
from Travis Air Force Base in Fairfield.
Military jets are only a
small portion of the aircraft in the
sky, Crossen said. The planes
leaving trails could be commercial
flights, private flights or
civilian aircraft leaving or arriving at
any of the local airports.
that fly at high altitudes and at high speeds always
leave some sort of a vapor behind
them, Crossen said.
Air National Guard based in Fresno
is not responsible for the
trails in the Central
Valley, said Capt. Chuck Pratt.
don't have aircraft that does that," Pratt said. "Our jets cannot
leave any type of contrail like that.
We don't even fly over
base flies only F-16s, and they fly them only over the
desert, he said.
leaving from or arriving to Fresno Yosemite International
are not responsible either, said John Manuszak, the
traffic manager. Their flights do not
generally fly high enough,
above freezing temperatures, to leave
significant contrails, he
said. Air traffic control in Fresno
is unable to track aircraft in the
area due to radar restrictions, he said.
to be overly dismissive, but the conspiracy theories on this
are so convoluted," said Capt. Tadd
Sholtis from Travis Air Force
Base. "I know that there are
people out there that are convinced of
this thing; but this is the way it is and it's not the way
Read "Californians concerned over chemtrails,"
by Lance Lindsay.
Lance Lindsay is a freelance reporter based in Madera County,