M&M Feedback by Anthony Lupo

We received this comment on the research of McIntyre and McKitrick from Dr. Anthony Lupo, Professor of Atmospheric Science, University of Missouri-Columbia:

I will confess that I was not aware of the details of Steve McIntyre and Ross McKitrick’s critique of the "hockey stick" but after a cursory reading of the enclosed materials it seems that the critics have valid points.

I’ve been skeptical of the "hockey stick" for a long time simply on the grounds that there is too much evidence that climate has been more changeable than the "hockey stick" would indicate, even if much of the evidence is from a more limited region of the globe. Also, having taken part in the IPCC review process for the 2nd and 3rd assessments, I was continually frustrated with drafts that had: [will include text later] [will insert figure here] riddled throughout them. Thus, I’m not surprised that some may have made errors in their science and then, for whatever reason fail to provide their methods.

Again, I’m not an expert in tree ring studies, but Steve and Ross’s work to me makes good points. I’m happy to see work like theirs get published.

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