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Scientific Critique of IPCC’s 2013 ‘Summary for Policymakers’

October 30, 2013

Watts Up With That?

(PDF of this report also available below)

by Craig D. Idso, Robert M. Carter, S. Fred Singer, and Willie Soon*

Introduction

The United Nations’ Intergovernmental Panel on Climate Change (IPCC) released a final version of the Summary for Policymakers (SPM) of its Fifth Assessment Report on September 27, 2013. It differs in important ways from a draft SPM dated June 2013 that circulated widely in the preceding months.

As discussed below, the new SPM reveals the IPCC has retreated from at least 11 alarmist claims promulgated in its previous reports or by scientists prominently associated with the IPCC. The SPM also contains at least 13 misleading or untrue statements, and 11 further statements that are phrased in such a way that they mislead readers or misrepresent important aspects of the science.

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