Pho Huc wrote on Nov 17
th, 2019 at 4:21pm:
That kind of limits your arguments against AGW to saying that the current warming is caused by historic, non-anthropogenic causes.
How much is natural variation and how much CO2 induced
Climate Change AGW?
Pho Huc wrote on Nov 17
th, 2019 at 4:21pm:
If its a natural reoccurring forcer which is causing the current trend, why the current warming is so much faster than any previous global historic period?
Is it?
Do you mean the Marcott reconstruction of the last 11,000 years?

How about his response to the "uptick?
"Our global paleotemperature reconstruction includes a so-called “uptick” in temperatures during the 20th-century. However, in the paper we make the point that this particular feature is of shorter duration than the inherent smoothing in our statistical averaging procedure, and that it is based on only a few available paleo-reconstructions of the type we used. Thus, the 20th century portion of our paleotemperature stack is not statistically robust, cannot be considered representative of global temperature changes, and therefore is not the basis of any of our conclusions. "
http://www.realclimate.org/index.php/archives/2013/03/response-by-marcott-et-al/Or perhaps you meant some other paper?