So, MrPete, are you going to clearly state that RCS analysis was only developed and is only applied to «cool down»
paleoclimate reconstructions from tree rings?
More serious is
the paleoclimate reconstruction from tree rings and so on.
Not exact matches
Oerlemans's
reconstruction of global temperatures (largely
from mid latitude glaciers) is entirely independent of the much talked about temperature records
from other
paleoclimate proxy data (e.g. Moberg and others, Mann and others, Crowley and others).
In fact, Marohasy points out that a lack of rising temperatures for recent decades is so common in
paleoclimate reconstructions that tendentious climate scientists have necessarily added heavily adjusted, hockey - stick - shaped instrumental records (e.g.,
from NASA GISS, HadCRUT) on to the end of the trend so as to maintain the visualization of an ongoing dangerous warming.
Figure 5.7
from the AR5 compiles a range of
paleoclimate reconstructions for the past two millennia:
I noticed in answering a recent comment at Real Climate that Gavin Schmidt distanced himself
from the importance of
paleoclimate reconstructions.
Here is a graph
from the AR5
paleoclimate chapter that compares Northern Hemisphere temperature
reconstructions (grey) and models (blue and red).