A climate denier drone just posted the following on the comment thread to "Taking Stock of Climate-Change Skeptics posted on NPR. http://www.npr.org/blogs/13.7/2011/06/03/136884396/taking-stock-of-climate-change-skeptics

John Hartz (Badgersouth) wrote:
“The Medieval Warm Period was not a global phenomenon...

Pfffffft. Utter nonsense. The MWP is well-documented:

Worldwide evidence of the Medieval Warm Period
http://pages.science-skeptical.de/MWP/MedievalWarmPeriod.html

Sunday, June 05, 2011 6:02:03 PM

Until this post appered, I didn't know that the ScienceSkepticBlog existed and the map existed. Has this map been directly debunked on SkS?

The world map graphic was produced by CO2 Science.

Directly below the map are links to:

CO2 Sience MWP Project: http://www.co2science.org/data/mwp/mwpp.php

Paleoclimate Publications: http://www.science-skeptical.de/skeptische-literatur/palaoklima/

If you believe that the scientific community has driven a stake through the heart of the MWP myth, a visit to the CO2 Science MW project will convince you otherwise.

I have yet to vist Paleoclimate Publications and will defer comment on it.

The bottom-line: The international tentacles of the Climate Denial Spin Machine continue to grow!

Badger, I'm actually working on a brief post about the Medieval Warm(ish) Period at the moment. Basically a couple of global map reconstructions and a short discussion. The squeptics won't like it, the temperature reconstruction is from Mann 2009. Thought it would be a good companion piece for the Medieval Project Gone Wrong post by Hoskibui, a month or so back.  

Don't remember where I saw it, but someone had prepared some discussion of the page and went into more depth with the actual reconstructions - many are not from the same centuries, which is strange if this is a global event.  I'll try to see if I can locate where this was.

I've run into this map probably a dozen times before (though it's been a while).  My pat response to it has been to point people to Mann 2008 (or any other proxy record research) to point out how many individual lines of evidence they rely on.  This map presents a couple dozen records.  Mann's work involves thousands of proxy data records.  That map is a massive act of cherry picking.

Thanks Hoskibui, here.

The thread in question where I first saw this...

When I looked at the CO2 science bollocks a couple of years back, several of the studies were from the Holocene Climatic Optimum about 6000 years ago! Now that is sure one ill-defined period. 

>>>several of the studies were from the Holocene Climatic Optimum about 6000 years ago!

The MWP - so warm, a caveman could feel it.

Yes Alex C found it - Hoskibui debunked the Science Skeptic Blog in the post he linked.

I suggest that Rob and Hoskibui co-author a detailed critque of the CO2 Science MWP map.  Becasue they've already generated quite a bit of text on this topic, it would be relatively easy for them to crank out an article. 

Isn't Swiss Cheese Chronicles supposed to be about 'skeptic' peer-reviewed studies?  The Science Skeptic Blog isn't peer-reviewed.  Though I guess technically their map is based on a bunch of peer-reviewed studies.

whatever we define it to be. If we want the "Chronicles" to focus exclusively on peer-reviewed papers, we could create a parallel series such as the "The Swiss Cheese Websites", or "Phoney Baloney Posts."  

I'm willing to help with whatever - but as the summer approach the time will be limited - hoskibui@hotmail.com if I do not appear in here  :)