David Deming

Jonathan Overpeck

“We have to get rid of the Medieval Warm Period”

Michael Mann

Sir John Houghton

Steve McIntyre

Gaspé

Twisted Tree, Heartrot Hill

Ross McKitrick

BACKTO_1400-CENSORED

Ring width Years AD

Ring width Years AD

Hockey stick from red noise

Bristlecone pine

“…the long-term trend in [the Northern Hemisphere] is relatively robust to the inclusion of dendroclimatic indicators in the network...”

Caspar AmmannEugene Wahl

James SaiersJay FamigliettiStephen Schneider

Joe BartonSherwood Boehlert

Edward Wegman

Gerald North

‘“strip-bark” samples [i.e. bristlecones] should be avoided for temperature reconstructions’

Hockey stick from red noise

“Based on the analyses…by Mann et al. and this newer supporting evidence, the committee finds it plausible that the Northern Hemisphere was warmer during the last few decades of the 20th century than during any comparable period over the preceding millennium.”

“Similar” temperature reconstructions

Climategate

Judith Curry

“ I am laying down the gauntlet, this really needs to be discussed and rebutted by the paleo researchers and the IPCC defenders. ”

...a rattling good detective story and a detailed and brilliant piece of science writing." Spectator The Hockey Stick Illusion is one of the best science books in years…This book deserves to win prizes. Prospect Andrew Montford tells this detective story in exhilarating style. Geoscientist …a code-breaking adventure, an intriguing detective story, an exposé of a scientific and political travesty… Quadrant