Wayne Stollings wrote:
Wayne you state that "You mean it is like the MWP where there was a significant anomoly in the north Atlantic basin, but not so much evidenced in other areas?" which is kinda correct but we go back to the ANDRILL results and they state that they have evidence for the MWP in their core samples and are going to be investigating it further in one of their funding reports that I linked to before.
If this signal is correct then the MWP was a global event with variations in the southern hemisphere and it will be interesting to see what they conclude when they get to drilling again.
The MWP has been confirmed by many studies all throughout the globe.
From the Tibetan Plateau (Liu et al. 2011
The period is earlier in China? There were two warm periods, W4 and W5, during 784–
1014 AD, most likely corresponding to Zhu’s result 
that there was a warming interval during 600–1000 AD in
the Sui and Tang dynasties. It seemed that the duration of
the Medieval Warm Period (MWP) was earlier in China
than in the Western Hemisphere . However, at almost
the same time as a warm period during 900–1000 AD observed
in the GISP2 δ18O records of an Greenland ice core
, W5 occurred on the Tibetan Plateau. This suggested
that the MWP existed worldwide or at least synchronously
at the high elevations of western China and high latitudes of
the Northern Hemisphere. It should also be noted that the
longest cold period was 1595–1713 AD, which was homochronous
with the worldwide LIA maximum .
To South Africa (Tyson et al. 2000
Anohter time frame and if you add the later paper from the same group on a reconstruction some 30 feet away you will seen an entirely different temperature pattern. So much for confirmation of the data.
Geography would put these in the North Atlantic region.
It was a Global phenomena, with many places having seen substantially warmer climates during the MWP than the CWP.
Depending on how you redefine the MWP and cherry pick the data.
I bolded a section in the paper that you didn't like (or decided not to bold).
Why would I not like it? It along with the other data indicates warming blips within a large range which may or may not be global in nature.
Spongebob is correct that the MWP was probably Global, as ice core readings in Antarctica, far away from Europe, Asia and North America confirm that the MWP existed there as well.
The MWP during what years and for how long? A warming spike of a few years maximum in a locality within a range of four centuries have what impact on the global temperature average?
I don't see why some try and deny Earth's climatic history when they try and argue that most of the warming in the CWP was anthropogenic.
Who denies the history? All we deny is the attempt to draw invalid conclusions by redefinition and cherry picking of data. To define the MWP as a couple of decades long warming spike within a 400 year window just does not match that of the normal definition of MWP previously used.