Steve McIntyre explores this question along with the bigger question about the core top redating which created the Marcottian uptick:
Q. Why did realclimate publish the Marcott FAQ on Easter Sunday?
A. Because if they’d waited until Monday, everyone would have thought it was an April Fools’ joke.
Ross McKitrick has an excellent article at National Post here.
Pielke Jr has an excellent post, reviewing the original statements by the authors of the Marcott article with particular attention to their promotion of the uptick, which Real Climate is now pretending not to exist. William Connolley responded in the style that is too popular among RealClimateScientists: by calling Pielke names – RP Jr Is A Tosser. Not exactly Churchillian wit.
Some comments at RC here, but nothing from the original authors, despite requests from Schmidt that they weigh in. No answers to any of the original questions other than Schmidt trying to “imagine” reasons.
New article by Andy Revkin here, including my comment that Tamino’s post, praised by RC and Revkin as “illuminating”, had been plagiarized from an earlier CA post. Although Tamino had previously conceded that he had consulted my blog post and had properly cited and linked my post in a draft, he is now arguing that he was justified in deleting the citations and links, though the rationale appears to be nothing more than pique.
Core Top Redating
Obviously, the main question arising from the sequence of CA posts was the rationale and methodology used in their core top redating.
Read his entire essay here.