http://www2.fci.unibo.it/~enzop/FILES/CO2.pdf Is ESA full of **** like NASA too?
What stations from when to when? Real atmospheric samples 1956 to present?Either you're playing dumb, or you're a genuine article...Do you see how those stations are tracking each other? The only significant difference is the size of the annual signals.
Validation...look it up and learn.