Then the first thing we need to agree upon is that you're mixing incompatible datasets. The first dataset you're posting is for Greenland only, while the second dataset is global (and incomplete to boot). In order to compare contemporary
global temperatures to paleo temperatures, you need a
global paleo dataset. Something that includes the Greenland data you're so eager to post, but that also includes everywhere else in the world too. Fortunately, we have that data. Here it is:
Sources posted. Let me know if you have any questions.