Temperature data only goes back to the 1700's, there were no thermometers
before that.
"Tampering", as the climate change deniers are so fond of quoting, in data that
has been "adjusted" to account for the known errors in the National Standards
Institute thermometers used prior to about 1950,
> Curley wrote:
> Show me a SPC control chart of the (actual, not tampered) temps
> going back say 500 or 1000 years, and you will see nothing is
> out of control.
Seems that tampered data is considered "at risk". There was
concern that the data might be removed from the web by the current
