It has only taken days for some serious question marks to be raised about the Marcott hockey stick. McIntyre has posted here about the mystery surrounding the methodology and here about the curious lack of a similar 20th century uptick in Marcott's PhD thesis on which the Science paper appears to have been based. Willis Eschenbach notes that many of the proxies used fail the paper's own criteria for inclusion, David Middleton has raised further questions based on examination of individual proxies. Don Easterbrook has further concerns here.
I was struck by Rob Wilson's comments about the paper a couple of days ago. He had only given it a brief read and alarm bells were already sounding. Rob is an expert in the area, but even for me, the paper did not pass the sniff test.
What does it say about Science that it would publish such a paper?