Thursday, August 2, 2012

To Chicago Trib on global warming

Chicago PM Wednesday 1 August 2012  

Editors, Voice of the People Chicago Tribune


A Tribune article “Ex-skeptic now says people cause 
climate change“ [Tuesday 31 July 2012] says a 
Climate scientist, formerly a climate change 
unbeliever, is finally admitting that “global warming 
is, in fact, occurring and emissions of greenhouse 
gases caused by human activity are the main cause.”  
He made this decision after an “intensive research 
effort involving a dozen scientists” determined that 
“the average temperature of the earth's land has risen 
by two and a half degrees Fahrenheit over the  past 
250 years, including an increase of one and a half 
degrees over the most recent 50 years.”

Have any climate scientists ever described how they 
can determine the “average temperature of the earth's 
land”?  Wouldn't they need at least one thermometer 
in every square mile of all 57,500,000 square miles 
the planet's land area?  Did they have them installed 
50 years ago? 250 years ago? 

Aren't all these climate change predictions based on 
computer models built by climate scientists around 
the world over the past few decades?   What is never 
admitted is the pathetically small set of past data 
there is to work with.  This is demonstrated by a 
model projecting the planet's 4.5 billion year age on 
an 80-year human lifetime. Such a model shows one 
year of earth time equivalent of 0.562 seconds of an 
80-year human life span. This means humans first 
appeared in our model earth 39 days ago. They had 
no idea of measuring temperature before Galileo's 
1593 thermometer invention, 4 minutes ago to our 
senior citizen., Discovery of carbon dioxide in 1630? 
3 minutes 30 seconds ago.  The 250 years quoted by 
the skeptic is  140 seconds in the geezer model.  Fifty 
years is 28 seconds.

If a doctor took a senior citizen's blood pressure and 
got 120 over 80, took a second reading  5 minutes 
later and got 124 over 78, would she call an 

Arnold H Nelson

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