Saturday, July 21, 2012

All Claimed July Warming In The US Is Due To Data Manipulation
...The unadjusted graph shows no warming since 1895, with the hottest July occurring in 1901. All of the claimed July warming is due to data manipulation....

New paper blames about half of global warming on weather station data homgenization
...Here’s the part I really like: of 67% of the weather stations examined, questionable adjustments were made to raw data that resulted in:

“increased positive trends, decreased negative trends, or changed negative trends to positive,” whereas “the expected proportions would be 1/2 (50%).”

And…

“homogenation practices used until today are mainly statistical, not well justified by experiments, and are rarely supported by metadata. It can be argued that they often lead to false results: natural features of hydroclimatic times series are regarded as errors and are adjusted.”...