Patrick J. Michaels
Richard S. Lindzen
Paul C. Knappenberger
A new paper published today by Science, from Thomas Karl and several co-authors, that removes the “hiatus” in global warming prompts many serious scientific questions.
The main claim by the authors that they have uncovered a significant recent warming trend is dubious. The significance level they report on their findings (.10) is hardly normative, and the use of it should prompt members of the scientific community to question the reasoning behind the use of such a lax standard.
In addition, the authors’ treatment of buoy sea-surface temperature (SST) data was guaranteed to create a warming trend. The data were adjusted upward by 0.12°C to make them “homogeneous” with the longer-running temperature records taken from engine intake channels in marine vessels.
As has been acknowledged by numerous scientists, the engine intake data are clearly contaminated by heat conduction from the structure…
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