Objectivist Individualist

22 December 2009

EXCERPT:

Using data downloaded from NASA GISS and picking rural sites near, but not too near, to urban sites, a comparison has been made of the temperature trend over time of the rural sites compared to those of the urban sites.  28 pairs of sites across the U.S. were compared.  The paired rural site is from 31 to 91 km from the urban site in each pair.  The result is that urban and rural sites were similar in 1900, with the urban sites slightly higher.  The urban sites have shown an increase in temperatures since then.  The rural sites show no such temperature increase and appear to be generally unchanging with only ups and downs localized in time.  Over a 111 year time span, the urban sites temperatures have risen to be about 1.5C warmer than the rural sites.  So, the much touted rising temperatures in the U.S. are due to the urban heat island effect and not due to a global warming such as has been proposed to be caused by human emissions of CO2 due to the combustion of fossil fuels.

You should find this video very interesting:

LINK

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