"It is a strange fact, characteristic of the incomplete state of our current knowledge, that totally opposite conclusions are drawn about prehistoric conditions on Earth, depending on whether the problem is approached from the biological or the geophysical viewpoint."

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How could two teams of scientists come to such obviously contradictory conclusions on seemingly every point that matters in the debate over global warming? There are many reasons why scientists disagree, the subject, by the way, of an excellent book a couple years ago titled Wrong by David H. Freedman. A big reason is IPCC is producing what academics call "post-normal science" while NIPCC is producing old-fashioned "real science.

— Joseph L. Bast