Climatic implications of ´<sup xmlns="">13</sup>C variations in a Japanese cedar (<i xmlns="">Cryptomeria japonica</i>) during the last two millenia this is a delta 13C reconstruction from Japan. the WUWT article is about why the IPCC shouldnt have credulously accepted M Mann's 'disappearing' of the MWP. Mann’s ‘hockey stick’ claims of the MWP and LIA being local were refuted years before it was published | Watts Up With That? what I would like to see is ^13C studies done at the same time, and on the same samples as treering width, area, and other measurements. if multiple lines of investigation from the same samples show similar results it would be much more convincing. especially if the experiment was designed by one group, collected by another, and measured by a third. with no deleting of inconvenient data of course.