Dear Editor (Washington Post)
Pls consider the appended Letter for early publication.
It corrects a factually incorrect Letter published on Oct 17
In responding to Congressman Joe Bartonâs letter of Oct 12
, Prof Gerald North (Letter, Oct 17
) claims that âwe have not found any evidence that his [Prof Michael Mannâs] results were incorrect or even out of line with other works published since his original papers.â This statement is factually incorrect: There are numerous papers, published in peer-reviewed journals, which show clearly that the 20th century was not the warmest in the past 1000 years (as claimed by Mann).
Medieval temperatures were substantially greater â and so were temperatures during the earlier Roman Warm Period. All of this is in addition to the valid criticism of the statistical methodology used by Mann. Tellingly, Canadian Prof. Steven McIntyre and Ross McKitrick showed that even random data fed into the faulty Mann theory would always yield a record-warmest 20th century.
(Prof.) S. Fred Singer, former director of the US Weather Satellite Service, is coauthor of best-seller "Unstoppable Global Warming: Every 1500 Years"