Mikey chopped down Briffa’s trees to make his hockey stick, and his justification was that it didn’t match (tampered) GISS data. All of the red section of the line is deleted data.
If we compare Briffa’s reconstruction against a legitimate data set, like the 1975 National Academy of Sciences graph – we see a different story.
The next graph overlays Briffa’s reconstruction on the NAS graph, and you can see that the deleted portion was actually correct.
What this means is that Hansen’s data tampering had to be done first, in order to clear the way for Mikey to make the fake hockey stick.
Mosher says that GISS data is first rate science.