Phil Jones published a flawed paper about Urban Heat Island effect in 1990 which has been used extensively to dismiss the obvious impact of asphalt and population on city temperatures. Both Jones and his co-authors had to separately deal with fraud allegations because of the knowingly faulty claims made. As per usual, they were found 'unguilty', and the paper was not even rescinded. The result was found that UHI was responsible for 0.05C increase, and even that was not an 'adjustment' placed on temps but simply added to the margin of error. The last few days have had some interesting articles on UHI- from NASA NASA - Satellites Pinpoint Drivers of Urban Heat Islands in the Northeast from Climate Audit New Light on UHI Climate Audit also from CA McKitrick and Nierenberg 2010 Rebuts Another Team Article Climate Audit these three links illustrate the insanely poor climate science that has come out, been used extensively even though known to be at best misleading, and the collusion involved with trying to prop up bad science in the name of 'settled science'.