The following article is a follow up from Dan Pangburn to Climate Change Mistake
Conclusions of the Natural Climate Change Verification
This work shows the influence that sunspots have had on 20th century and more recent average global temperatures. Without the influence of sunspots, the trends of anomalies would have been close to the shape of the graph for ESST only.
The precise points to make calculations of the effective influence of the sunspot timeintegral are somewhat uncertain. Temperatures predicted at the end points of the ESST trends result in the following: Sunspots had little effect prior to about 1941. The anomaly predicted for 1941 was 0.1017 and in 1973 was -0.0908 for a decline of 0.1925. Without the sunspot time-integral the decline would have been that of the ESST or 0.45.
Thus the temperature decline from 1941 to 1973 would have been about 0.257 C deeper if not forthe high sunspot-number-time-integral during that period. This is equivalent to saying
that the decline from 1941 to 1973 was (0.45 – 0.1925)/0.45 or 57% less than it would have been without the time-integral of sunspot-number during that period.
Click PDF file to download Corroboration of Natural Climate Change by Dan Pangburn