Peter Miesler Helps Expose USHCN Homogenization Insanity and Antarctic Illusions.

WUWT
I had naively assumed that after the publication of Menne (2009), that USHCN trends published after 2009 would remain fixed because data had been quality controlled for all known changes in location and instrumentation and further homogenized whenever Menne’s algorithm assumed a changing trend might not be natural. Anthony Watts, myself and many others have questioned the distortions created by homogenization and have warned about resulting warming biases.   .......The bizarre consequences of USHCN’s monthly homogenization adjustments are seen by comparing changes in Death Valley’s maximum temperature trends over the past 2 years (solid black line). Adjustments were inflicted despite the fact the data had been quality controlled and adjusted several years before.  ......By what possible logic, would 2 years of additional data suddenly reverse a cooling trend since the 30s and create a warming trend? I suggest we need to ask Congress for a full investigation. (Hat tip to Miesler) .......Although there is no excuse for the lies, distortions and rudeness posted by Mielser or Slandering Sou, I must sympathize to a limited degree. Their delusions have been supported by bad science from the USHCN and elsewhere, and when skeptics reveal the truth, it surely drives them mad."