Comment: Laundryhead, You Absurdum ad infinitum - consider the source!

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Laundryhead, You Absurdum ad infinitum - consider the source!

You can't have it both ways - lets face it your source sucks!

http://science-edu.larc.nasa.gov/contrail-edu/science.html
“Contrails are clouds formed when water vapor condenses and freezes around small particles (aerosols) that exist in aircraft exhaust. Some of that water vapor comes from the air around the plane; and, some is added by the exhaust of the aircraft.”

The main thing of contrails is not the water, but the aerosol or particle production. I could not find statement in scientific reference that support the idea of contrails can form with only water vapor.

... And if its aerosol particle production you can't say conclusively that it is not the result of man-made spraying.

It can't be...can it?