So a Willis Eschenbach article at WUWT caught my attention this afternoon and cost me several hours. It is basically an average of 54 different tree ring reconstructions around the world. The sheer volume of data which went into each hockey stick and then was processed into the final hockeystick is huge. Willis demonstrated the indescribable method used to combine the data turned out to be equivalent to a simple average. The result: Hockeystick!
Graph per Willis Eschenbach — WUWT article linked above Last millennium northern hemisphere summer temperatures from tree rings:
Rob Wilson a, b, *, Kevin Anchukaitis b, c, Keith R. Briffa d, Ulf Büntgen e, g, h, Edward Cook b,
Rosanne D’Arrigo b, Nicole Davi b, i, Jan Esper j, Dave Frank e, Bj€orn Gunnarson k,
Gabi Hegerl l, Samuli Helama m, Stefan Klesse e, Paul J. Krusic f, k, Hans W. Linderholm n,
Vladimir Myglan o…
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