Bias and Concealment in the IPCC Process: The “Hockey-Stick†Affair and its Implications

David Holland

Energy & Environment, 2007, vol. 18, issue 7, 951-983

Abstract: The climatic “hockey stick†hypothesis has systemic problems. I review how the IPCC came to adopt the “hockey stick†as scientific evidence of human interference with the climate. I report also on independent peer reviewed studies of the “hockey stick†that were instigated by the US House of Representatives in 2006, and which comprehensively invalidated it. The “divergence†problem and the selective and unreliable nature of tree-ring reconstructions are discussed, as is the unsatisfactory review process of the IPCC Fourth Assessment Report that ignored the invalidation of the “hockey stick†. The error found recently in the GISS temperature series is also noted. It is concluded that the IPCC has neither the structure nor the necessary independence and supervision of its processes to be acceptable as the monopoly authority on climate science. Suggestions are made as to how the IPCC could improve its procedures towards producing reports and recommendations that are more scientifically sound.

Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:sae:engenv:v:18:y:2007:i:7:p:951-983

DOI: 10.1260/095830507782616788

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