| UPDATE: The slide originals have been found and posted. See link below. It’s identical to Mike’s AGU trick| As promised earlier this week, I’ve gotten my phone connected and have offloaded all of the photos of Dr. Mann’s slide presentation that I took from my vantage point in the front row. I’ve created a gallery of images with some notes about each. As you can see, it is heavy on politics and light on science. The final slide of his lecture, which depicts his daughter and a polar bear where he talks about “children and our future”, I pixelated out to make it unrecognizable as I don’t think children should be used as props.
I think I got most every slide in his presentation, but there may be one or two missing, as I had issues trying to operate the camera and keeping my hearing assistance device functional (I had to hold it at arms length to get a signal, and put it down to get a photo). Slides go from upper left to right, and are in order. Click the first one and you’ll get a slide show applet in a new window.
I’ll have some commentary about the Q&A session and why I didn’t ask a question, along with some additional photos, a bit later in a separate post.
UPDATE: A PDF of all the slide originals presented in Mann’s Rutgers presentation was released by Mann on the Penn State web page here: http://www.meteo.psu.edu/holocene/public_html/Misc/HSCW_Rutgers_Sep12.pdf
These were the slides used in a September 2012 presentation at Rutgers, which were the subject of Steve McIntyre’s breakdown of the presentation Mann gave to AGU in December 2012 which he called “Mike’s AGU Trick“. At issue was the staleness of temperature data presented which completely eliminates any hint of “the pause”, as seen below. Mann’s talk in Bristol was the virtually identical set of slides. He hasn’t updated them with anything of significance in 2 years, except for some news headline articles about severe weather events. The data truncated at 2005 has not changed. (h/t to Jean S.)
There were two components to Mann’s AGU trick. First, as in Mann and Kump, Mann compared model projections for land-and-ocean to observations for land-only. In addition, like Santer et al 2008, Mann failed to incorporate up-to-date data for his comparison. The staleness of Mann’s temperature data in his AGU presentation was really quite remarkable: the temperature data in Mann’s presentation (December 2012) ended in 2005! Obviously, in the past (notably MBH98 and MBH99), Mann used the most recent (even monthly data) when it was to his advantage. So the failure to use up-to-date data in his AGU presentation is really quite conspicuous.
Had Mann shown a comparison of Hansen’s Scenario B to up-to-date Land-and-Ocean observational data, the discrepancy would have been evident to the AGU audience, as shown in the loop below.
Update: As reader DGH observed in a comment below, Mann’s presentation at Rutgers also employed Mann’s AGU Trick to hide the divergence between Hansen Scenario B and observed temperature, not showing data after 2005. As noted above, not using up-to-date data in virtually identical circumstances was characterized by Pierrehumbert as “ugly” and “illegitimate”:
Figure ^. Excerpt from Mann’s September 2012 presentation at Rutgers.
As reader ZT pointed out, Mann also used his AGU Trick to hide the divergence in his TEDx talk