A 2010 report?? OK, what is the visual difference between a chemtrail and a contrail?
Contrails are what everyone sees every day.
I live between Boston and New York so the contrails are obvious—they go from northeast to southwest or vice versa as jets pass overhead between those two major cities.
During a normal clear day I will see at least a couple of contrails every hour.
The very rare chemtrails form Xs in the sky—and the X could be in any direction. We often go weeks or even months without seeing any of them.
The chemtrails last for many hours and as they dissipate they create a cloud cover over the full sky in what would normally be a clear day.
Contrails are gone in a few minutes.