A Simple Test of Marcott et al., 2012

Debunk House

The Gorebots are al atwitter about this new paper…

Science 8 March 2013:
Vol. 339 no. 6124 pp. 1198-1201
DOI: 10.1126/science.1228026

A Reconstruction of Regional and Global Temperature for the Past 11,300 Years

Shaun A. Marcott, Jeremy D. Shakun, Peter U. Clark, Alan C. Mix

Surface temperature reconstructions of the past 1500 years suggest that recent warming is unprecedented in that time. Here we provide a broader perspective by reconstructing regional and global temperature anomalies for the past 11,300 years from 73 globally distributed records. Early Holocene (10,000 to 5000 years ago) warmth is followed by ~0.7°C cooling through the middle to late Holocene (<5000 years ago), culminating in the coolest temperatures of the Holocene during the Little Ice Age, about 200 years ago. This cooling is largely associated with ~2°C change in the North Atlantic. Current global temperatures of the past decade have not yet exceeded peak interglacial values…

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