By Jeff Id at The Air Vent

ICECAP UPDATE: Also see Lubos Motl’s comments on this posting concluding “If This Isn’t Fraud, What Is?” here.

Ok, two days ago I published a report on the data called The All Important Blade of the Stick Uses Less Than 5% of the Data. This report detailed what I consider powerful evidence that Mann and his group may have intentionally manipulated data in creating this paper.  I don’t say this lightly.

It is very clear that the proxies, which no one is sure represent temperature, were in fact extended using questionable statistics and then correlated to demonstrate that they match measured temperature. The addition of an up slope to 90% of the data was pasted on according to less than 5% of the data.  I am very suspicious that this 5% was chosen specifically because of its up slope in recent times. Think about that only 55 series determined the outcome of the majority of the 1209 series data!!

See larger image here.

Mann used a select few data sets to paste an up slope on the end of 90% of the data in his latest paper.  The series used to make the pink line above could have been used in the process but were conveniently eliminated from the paper without mention.  Mann accidentally posted these series on a national server and cannot eliminate them easily.

It was my guess that these series would have a reduced up slope compared to the data selected in the last 50 years, I had no idea the selected data would demonstrate such an extreme slope so I could have lost.  I can’t prove it yet but this now looks like deliberate manipulation of data to me!  Read more here.