Quote:
Originally Posted by freebeard
On 20010911 we learned what happens when you ground all the airliners. 
When you hear about the dangers of geo-engineering, think about the covert governmental programs to seed the atmosphere with chemtails of who-knows-what to combat anthropogenic global warming, when it's the only thing staving off the glaciers. |
I just wanted to comment,that where commercial airliners fly,it's not uncommon for the outside temperature to be minus 68-degrees F.
Water vapor, liberated from combustion of the jet fuel, immediately freezes to form the contrails visible to us from below.
Other than un-burned hydrocarbons,and fuel system icing inhibitor,mostly what we see is water ice.
These 'clouds' both reflect solar radiation,and hold in infrared radiation trying to escape Earth.