For those interested in the whole debate (however fraudulent it is)... here's some more ammo:
-Medieval Warm Period - Conservapedia
-Amazon.com: Unstoppable Global Warming: Every 1,500 Years, Updated and Expanded Edition (9780742551244): S. Fred Singer, Dennis
-Mann has a new paper: he apparently discovers the Medieval Warm Period « Watts Up With That?
bonnie somer commented on Old Rooster's video
2 hours ago