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Correspondence

Nature 442, 627 (10 August 2006) | doi:10.1038/442627b; Published online 9 August 2006

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naturejobs

Authors were clear about hockey-stick uncertainties

Raymond S. Bradley1, Malcolm K. Hughes2 & Michael E. Mann3

  1. Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
  2. Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona 85721, USA
  3. Department of Meteorology, Pennsylvania State University, University Park, Pennsylvania 16802, USA

Your News story "Academy affirms hockey-stick graph" (Nature 441, 1032; 2006) states that the US National Academy of Sciences (NAS) panel "concluded that systematic uncertainties in climate records from before 1600 were not communicated as clearly as they could have been". This conclusion is not stated in the NAS report itself, but formed part of the remarks made by Gerald North, the NAS committee chair, at the press conference announcing the report.

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