Originally Posted by jtdavis:
Mr Hooberbloob, at the bottom of your first post there is a statement that says "A new reconstruction of temperature variability in the extra-tropical northern hemisphere during the last two millennia. What year did the thermometer get invented?
As for the second post, it's real good to have modern information for posting.
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So, how did the warmists come up with their estimates using data before the 1700s?