Global Temperature Reconstruction
Posted by Max Dunn Sat, 08 Dec 2007 17:43:00 GMT
The global temperature graph that appears in An Inconvenient Truth and also the one that the IPCC uses is usually referred to as the Mann or MBH98 graph.
However, this temperature reconstruction is controversial. One of its problems is that it doesn’t show the Medieval Warming Period or the Little Ice Age (LIA).
More recently, Loehle put together another temperature reconstruction that doesn’t use tree rings and this reconstruction does show the MWP and LIA.