"Moving on the second paper you used from Daly’s selection. In it, the paper shows a decrease in SST of 3 – 4 degrees as you state. However if you read the paper (instead of assuming that it means a decrease in global temperature) you find that it also is related to current patterns"
To be clear, niether I nor Daly would think that one data point (a proxy data no less) would tell you what the global temperature was.
Fair enough. However I contend that it does not show a change in local climate that could be used to support a change in global temperature. It is merely a change in ocean currents. You can argue that the change in currents is caused by a climate change (either up or down, take your pick) but Daly did not do this and I have yet to see anyone make this link.