Whether people believe in the chemtrail theory (I do) or not, the fact of the matter remains that jet exhaust is HIGHLY pollutive.
I would suggest global warming is a fact, and jet exhaust is a major player.
Only a NASA scientist, or concerned environmentalist recognize that jet exhausts, loaded with water vapor, nitrous oxides, carbon dioxide and other
aerosols, are changing atmospheric properties and photo-chemistry and affecting the health and living conditions at our planet's surface.
Yes, I know. Yesterday, I counted 15 (fifteen) aircraft in the airspace at ONE TIME. There was another 20 contrails left from previous aircraft. My
eyes literally burned from it. I live @ 7000ft. Our atmosphere is normally pristine. And a clear day, you can smell the pines from a mile away. Not
anymore.
A 1998 NASA study of jet contrails suggested maximal depolarization ratios were produced by ice crystals with radii as small as several tenths of a
µm, explaining why they disappear in less than 20 seconds and so have different radioactive properties than cirrus clouds. In addition to producing
vapor trails stretching thousands of miles across the sky,
jet exhaust also seeds the atmosphere with cloud-forming aerosols - droplets of sulfuric
acid and particles of soot. NASA's tests revealed that, at jet cruising altitudes, acid droplets account for at least 10 percent of the sulfur
emissions.
www.coastalpost.com...
If the atmosphere were warmer than the temperature indicated by the 100% line, a contrail could not form even if the relative humidity of the
atmosphere were 100 percent.
The combined moisture from the jet exhaust and the atmosphere will never be enough for the mixture to produce a cloud.
Temperature profiles to the right of the 100% line will never form a contrail.
asd-www.larc.nasa.gov...
In 1997, about the time "Chemtrails" showed up on the scene, scientists first measured sulphuric acid in the exhaust
Recently, our newly developed VACA ( = Volatile Aerosol Composition Analyzer) instrument was used in the "SULFUR 5" campaign in April 1997, leading
to the first direct detection of sulfuric acid in the exhaust plume of a jet aircraft in flight.
www.mpi-hd.mpg.de...
So, when scientists say "it's just water vapor" they are either misinformed or spreading dis-info.
Engines can also stimulate cloud growth indirectly, by way of tiny aerosol particles within the exhaust. These aerosols-droplets of sulfuric acid and
specks of soot-serve as seeds. They provide surfaces upon which water molecules can condense or freeze to create cloud particles, explains Eric J.
Jensen, a participant in SUCCESS and a researcher at NASA's Ames Research Center in Mountain View, Calif.
findarticles.com...
Now, this next excerpt, sound to me like, they are intentionally doing some of this.
Results are presented for the mass fractions of SO3 and H2SO4 acquired per soot particle early in the plume,
suggesting that sulfur-induced
activation is an efficient pathway to increase the ability of exhaust soot emitted at altitude to host heterogeneous chemical reactions and to trigger
the formation of cirrus clouds.
cat.inist.fr...
So, instead of fighting on whether they are contrails, or chemtrails, let's all agree that we need to address this issue.
It's be a long time since "the skies where not cloudy all day"
[edit on 21-5-2008 by cutbothways]
[edit on 21-5-2008 by cutbothways]
