Still Hiding the Decline

Even in their Nov 24, 2009 statement, the University of East Anglia failed to come clean about the amount of decline that was hidden. The graphic in their statement continued to “hide the decline” in the Briffa reconstruction by deleting adverse results in the last part of the 20th century. This is what Gavin Schmidt characterizes as a “good thing to do”.


First here is the Nov 2009 diagram offered up by UEA:

Figure 1. Resized UEA version of Nov 2009, supposedly “showing the decline”. Original here ,

Here’s what UEA appears to have done in the above diagram. While they’ve used the actual Briffa reconstruction after 1960 in making their smooth, even now, they deleted values after 1960 so that the full measure of the decline of the Briffa reconstruction is hidden. Deleted values are shown in magenta. Source code is in first comment. Read more.