Please click for Part I and Part III.
PART II – The “hockey stick” graph inadvertently incites a new camp of “lukewarmer” skeptics. Climategate files make first appearance on the internet, but were in the hands of one person days before they were made public.
If history tells us anything, it shows us that inciting an audience is an extremely precarious undertaking. Inspiring one group of followers with a call-to-action can just as easily unleash the furor of another. Arousing a community to attack an indisputable villain can surprisingly lead to a circling of the wagons by the scoundrel’s close associates. Inciting is an unpredictable endeavor, best left for those with an innate ability to read a situation or an army on-the-ready to quickly take advantage of an opening.
So is the story of the hockey stick – just as quickly as it was used as a rallying call for warmists, it also inadvertently gave birth to a camp of skeptics.

Enter Steve McIntyre, stage right. A retired mineral explorer and math scholar from Toronto, McIntyre became interested in climate science and the hockey stick due to its seeming inconsistencies. A Medieval Warming Period (seen above) had been a well-documented event in which the earth’s temperature increased considerably sometime between 1000 and 1300 AD, followed by a cooling trend known as the Little Ice Age. A graph of this cycle was even included in the IPCC First Assessment Report in 1990. These events were, however, absent from the Mann et al hockey stick graph. McIntyre was curious about how the graph was made and as chance would have it, the discipline of temperature reconstructions, largely an exercise in statistics, fit right within his mathematics wheelhouse.
Steve McIntyre
On investigating the hockey stick, McIntyre happened upon what he viewed as some errors in the application of his field of expertise along with some misuses of data. He contacted Ross McKitrick, an environmental economist with a PhD in economics, and the two worked on a paper that would highlight the errors in the original hockey stick article. (more…)






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