Tag Archives: mann_2009

Mann and his bristlecones

Aug 7, 2010 – 5:48 PM

Gavin Schmidt and others have claimed that the M08 usage of the Tiljander sediments didn’t ‘matter’, because they could “get’ a series that looked somewhat similar without the sediments. They’ve usually talked around the impact of the Tiljander series on the no-dendro reconstruction. But there are two pieces of information on this. A figure added […]

By Stephen McIntyre | Posted in Mann et al 2008 | Also tagged , , , , , | Comments (81)

The No-Dendro Illusion

Aug 1, 2010 – 9:27 PM

In September 2008, Mann et al reported a “significant development” in paleoclimate reconstructions – a “skillfull” reconstruction without tree ring data for over 1300 years. A skillful EIV reconstruction without tree-ring data is possible even further back, over at least the past 1,300 years, for NH combined land plus ocean temperature (see SI Text). This […]

By Stephen McIntyre | Posted in Uncategorized | Also tagged , , , | Comments (442)

Say My Name – February Rerun

Feb 6, 2010 – 1:38 PM

Science has published a Correction and Clarification to Kaufman et al (2009), see here. Since they only needed to correct four out of 23 proxies, there is no need to name those who pointed out errors. 😉 There is a small improvement over the draft version though; congratulations Hu! We thank H. McCulloch and others […]

By Jean S | Posted in Kaufman 2009, Mann et al 2008, Mann et al 2009, News and Commentary, Proxies | Also tagged , , , | Comments (37)

Yet another Upside Down Mann out

Nov 27, 2009 – 4:52 AM

Science published today yet-another-Mann-et-al-reconstruction: Michael E. Mann, Zhihua Zhang, Scott Rutherford, Raymond S. Bradley, Malcolm K. Hughes, Drew Shindell, Caspar Ammann, Greg Faluvegi, and Fenbiao N: Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly, Science 326 (5957), 1256. [DOI: 10.1126/science.1177303]. Seems to me that Mann has re-discovered the Medieval […]

By Jean S | Posted in Mann et al 2009 | Also tagged , , , , | Comments (141)