My impression is that most of the commercial aircraft i see don't make contrails, perhaps because they are lower (close to airport) and maybe because
they fly at lower altitudes than military craft.
Here's a pretty good initial site to examine:
cimss.ssec.wisc.edu...
I also wonder about contrails with stealth aircraft, if you spend umteen billion dollars researching radar invisibility and several millions of
dollars per craft, but don't get rid of the contrail isn't that a problem? Perhaps its not such a problem at night, but for daytime runs I would
think you would want to eliminate them.
WEATHER:
Here's what sounds like a credible report that contrails can actually create cloud formation where none might have otherwise developed.
www.clydelewis.com...
CHEMTRAILS:
Here's a report that sounds credible reporting people getting sick and tasting something in their mouths.
www.clydelewis.com...
This site specifies that they have added ethylene dibromide to Jet fuel to make it less flammable, the same ethylene dibromide that was banned as a
pesticide in 1983 by the EPA.
members.tripod.com...
This does not supprise me, this is the same military that has covered up their war crimes in Afghanistan where US troops sat by and watched and did
nothing while Taliban prisoners were gunned down in cold blood. [Afghan Massacre: Convoy of Death]