the original global temperature schematic which appeared in the ipcc first assessment report and seemed to show the medieval warm period (mwp) hotter than present was based on the central england temperature record, and ended in the 1950s.
the original global temperature schematic which appeared in the ipcc first assessment report and seemed to show the medieval warm period (mwp) hotter than present was based on the central england temperature record, and ended in the 1950s.
soon and baliunas controversy:7
the ipcc first assessment report included a "schematic diagram" of global temperature variations over the last thousand years which has been traced to a graph based loosely on hubert lamb's 1965 paper.