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Reader's View: Climate-change denier concocted blatant lies

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opinion Duluth, 55802
Duluth News Tribune
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Duluth Minnesota 424 W. First St. 55802

In the June 22 News Tribune, a climate-change denier insisted human-induced global warming advocates are themselves guilty of cherry-picking data and used an odd hodgepodge of different periods of time to deliver more false claims. (The denier’s letter to the editor was headlined, “Global-warming supporter also cherry-picked data.”)

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Contrary to claims, heat-sensing satellites monitored by NASA revealed that January 1979 to November 2010 included a clear worldwide warming trend. The trick to denying this usually includes cherry-picking selected years and then comparing the highest temperatures in a warm El Nino year to the lowest temperatures in a La Nina year (when the Earth naturally cools), thus creating the illusion that global temperature averages are decreasing. But when comparing warm El Nino periods to subsequent El Nino periods and comparing cool La Ninas with other cool La Ninas, temperatures clearly rise over time.

Another favorite ploy records low-temperature readings from one part of the Earth and ignores large rises in average temperatures in others, like the recent heat waves in Australia.

Famous denier Christopher Monckton put the rate of warming between 1975 and 2001 at 0.16 centigrade per decade, or (1.6 degrees C/

century), claiming it was the fastest warming rate to last more than a decade in 160 years of record-keeping yet was also at that rate between 1860  and 1880 and between 1910 and 1940. But actually, 1975 to 2005 recorded a much higher global average temperature/century rise of 1.9 degrees C, and the years 1975 through 2001 also recorded a higher rate of 1.78 degrees C/century.

The letter concocted blatant lies. NASA satellite data and ground readings confirm the Earth is still warming; the years since 1998 have been the hottest on record, and 2005 was warmer than 1998. Globally, the 12 months following June 2009 are the hottest on record.

My primary sources, including the list refuting the denier’s arguments, are at skepticalscience.com.

Peter W. Johnson

Superior

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