By the way...have you seen what the IPCC did with the Briffa graph? They used it to support the correlation between CO2 and temperatures (via proxy), and then when Briffa updated the proxy beyond the training period...they clipped it (and Rutherford) when it diverged. A reviewer of the IPCC document pointed out that they should at least explain why they did so, and their response consisted of “Rejected - though note ‘divergence’ issue will be discussed, still considered inappropriate to show recent section of Briffa et al. series.” No explanation of WHY...
http://www.climateaudit.org/?m=200712
It’s politics; not science.