A new paper comparing NCDC rural and urban US surface temperature data

WUWT
"...Dr. Long suggests that NCDC’s adjustments eradicated the difference between rural and urban environments, thus hiding urban heating. The consequence:

“…is a five-fold increase in the rural temperature rate of increase and a slight decrease in the rate of increase of the urban temperature.”

The analysis concludes that NCDC “…has taken liberty to alter the actual rural measured values”.