Here on climateaudit, it never fails to amaze us how many different ways that the Hockey Stick appears in various guises. But on the other hand, its use in the context of "greenhouse warming", "anthropogenic climate change" or the Kyoto Protocol appears almost universal. For all the bleating about "other studies" which "confirm the Mann, […]
It’s been too long since our last round of Spot the Hockey Stick! but despite the impressive backpedalling of some that the Mann, Bradley and Hughes study is sooo old hat and soooo last millennium, it’s still being cited at breathtaking pace as the best thing in climate science since the thermometer. Thus we come […]
Recently, as the hockey stick looks more and more splintered, some climate scientists have argued that the hockey stick graph was merely incidental in Kyoto promotion.
Here’s a blast from the past. This particular site was used zillions of times on Usenet whenever global warming was "discussed". I use the "scare quotes" because to describe what goes on on Usenet as "discussion" is like describing global thermonuclear war as "a mild case of suntan" Anywho, here’s the graph of temperature and […]
Bernd StràÆàer commented that Cubasch told a German radio station about incorrectly located series in MBH98. Does this sound familiar?
I know what you’re thinking: Who, they? Me too. According to the website: IGBP is an international scientific research programme built on interdisciplinarity, networking and integration. It addresses scientific questions where an international approach is the best or the only way to provide an answer. We add value to a large number of individual, national […]
Does anyone remember the 159 series said to have been used in MBH98? Mann et al. [2003] stated: MBH98 calculated PCs of proxy sub-networks separately for each interval in their stepwise reconstruction. This is the only sensible approach, as it allows all data available over each sub-interval to be used. This requires 159 independent time […]
Mann told Antonio Regalado of the Wall Street Journal that he would not be “intimidated” into releasing source code for MBH98. Here is an account of correspondence with Mann and with the U.S. National Science Foundation: Even before publication of MM03, we politely requested clarification on issues in MBH98. This was a source of controversy […]
This next replication exercises shows the results of attempting to reconstruct the NH temperature index from the archived RPCs, with the usual puzzling discrepancies.
Mann et al. have archived 3 slightly varying versions of the their "dense" subset and one version of their "sparse" subset. The dense series extend later than the temperature dataset archived at the Corrigendum SI and said to the the source for MBH98 instrumental data. The sparse subset can be reconstructed resaonably closely (but not […]
Climate Audit 
Cubasch #2 and Replication #12
Bernd StràÆàer commented that Cubasch told a German radio station about incorrectly located series in MBH98. Does this sound familiar?