We’ve been lectured time and again about the importance of having climate science work come from peer reviewed papers, saying that the work of dedicated amateurs has no place in climate science unless the work rises to publication/peer review level.
Yet that doesn’t seem to apply for United Nations science publications. Of course just one look at the front cover at left tells you its more about selling than science.
The cover image pulls at heartstrings, making the world appear as if it is running out of time before turning entirely into an inhospitable desert. That is an extreme view in my opinion.
Steve McIntyre’s blog discovery of UNEP’s folly bears repeating, because it shows the sort of sloppy science that is going into “official” publications.
This is much like the NCDC CCSP report just over a year ago where they used a photoshopped image of a “flooded” house.
In this case, the United Nations simply grabbed an image from Wikipedia that supported the view they wanted to sell. The problem with the graph in the upper right of page 5 of the UNEP report is that it itself has not been peer reviewed nor has it originated from a peer reviewed publication, having its inception at Wikipedia.
And then there’s the problem of “Hanno” who is an anonymous contributor. This is simply his/her artwork and interpretation. We don’t have any idea who “Hanno” is, nor apparently does UNEP.
Yet UNEP cites the graph as if it was a published and peer reviewed work as “Hanno 2009”. Yet UNEP doesn’t even get the year right as the graph was created in 2005:
But as Steve McIntyre shows us, this graph from “Hanno” is just another variation of Mann’s discredited Hockey Stick based on questionable mathematics, outright errors such as data inversions, and dubious or excluded proxies that may not reflect temperature change at all.
From Climate Audit:
The UNEP CLIMATE CHANGE SCIENCE COMPENDIUM 2009 on page 5 uses the following graph from Wikipedia (not the IPCC Fourth Assessment Report):
CO2 concentration and mean global temperature during the past millennium. CO2 levels (blue line, lefthand axis) are given in parts per million, temperatures (red line, right-hand axis) in degrees Celsius. Source: Hanno 2009 Page 5
Hanno is the pseudonym for a Wikipedia contributor. The graphic itself compares CO2 levels from Mauna Loa and Law Dome ice core to a splice of the HAdCRU temperature index and the Jones and Mann 2004 reconstruction (dominated by Graybill bristlecone chronology).
The latter splice is, of course, the splice that Mann has informed us is never done by responsible climate scientists, further informing us that the allegation that such splices are done is disinformation by fossil fuel companies.
No researchers in this field have ever, to our knowledge, “grafted the thermometer record onto” any reconstrution. It is somewhat disappointing to find this specious claim (which we usually find originating from industry-funded climate disinformation websites) appearing in this forum.
I’ve done some additional review and here is what I’ve found about “Hanno”
First here is the Wikipedia source for the image:
UPDATE: From a Climate Audit commenter “Feedback”: Hanno is also the author of a non-hockey stick graph that can be found in the Norwegian Wikipedia article about the Migration Period (Norwegian: Folkevandringstiden) that shows a more Lamb-like relationship between the MWP and the current warm period:
Source is said to be:
Source: graph drawn by Hanno using data published by A. Moberg, D.M. Sonechkin, K. Holmgren, N.M. Datsenko, W. Karlén, and S.-E. Lauritzen (2005, Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data. Nature (London), 433, 613–617). Temperatures for the last three decades of the 20th Century were taken from P.D. Jones, D.E. Parker, T.J. Osborn & K.R. Briffa (2005, Global and hemispheric temperature anomalies – land and marine instrumental records. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S.
So apparently “Hanno” contradicts himself with his own set of artwork.
UPDATE2: The Wiki “Hanno” user page is interesting. Thanks to commenter “Dr. Spock”.