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Hockey Stick? What Hockey Stick?

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September 12, 2008
SPPI
Written by Lord Monckton
 An extraordinary series of postings at Climate Audit, the deservedly well trafficked website of the courageous and tenacious Canadian statistician Steve McIntyre, is a remarkable indictment of the corruption and cynicism that is rife among the alarmist climate scientists favored by the UN's discredited climate panel, the IPCC.

In laymen's language, the present paper respectfully summarizes Dr. McIntyre's account of the systematically dishonest manner in which the "hockey-stick" graph falsely showing that today's temperatures are warmer than those that prevailed during the medieval climate optimum was fabricated in 1998/9, adopted as the poster-child of climate panic by the IPCC in its 2001 climate assessment, and then retained in its 2007 assessment report despite having been demolished in the scientific literature. It is a long tale, but well worth following. No one who reads it will ever again trust the IPCC or the "scientists" and environmental extremists who author its climate assessments.

Abstract

The Intergovernmental Panel on Climate Change (IPCC, 2007) concluded that anthropogenic CO2 emissions probably caused more than half of the "global warming" of the past 50 years and would cause further rapid warming. However, global mean surface temperature TS has not risen since 1998 and may have fallen since late 2001. The present analysis suggests that the failure of the IPCC's models to predict this and many other climatic phenomena arises from defects in its evaluation of the three factors whose product is climate sensitivity:

1) Radiative forcing

2) The no-feedbacks climate sensitivity parameter and

3) The feedback multiplier

Some reasons why the IPCC's estimates may be excessive and unsafe are explained. More importantly, the conclusion is that, perhaps, there is no "climate crisis", and that currently-fashionable efforts by governments to reduce anthropogenic CO2 emissions are pointless, may be ill-conceived, and could even be harmful.
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