From: ralph@eddlewood.demon.co.uk   
      
   In message , David V.   
    writes   
   >ralph wrote:   
   >> In message , David   
   >> V.  writes   
   >>   
   >>> ralph wrote:   
   >>>   
   >>>> Investigation of ice cores from the Antarctic shows close   
   >>>>correlations between temperatures and concentrations of greenhouse   
   >>>>gases (carbon dioxide, methane and nitrous   
   >>>> oxide). ....   
   >>>  What's the major "greenhouse" gas? I was left off of your   
   >>> list.   
   >>  I'm sorry, David, I don't understand your question. CO2 is the   
   >> one causing most concern, although I believe methane, cc for   
   >> cc, has a greater effect. Is that what you wanted to know?   
   >   
   >Nope. The major greenhouse gas isn't even on your list. Why?   
   >   
   Firstly, I was reporting a finding from a news report.   
      
   Secondly, if you are referring to water vapor, there may be some   
   difficulty in extracting this from ice cores, doncha think?   
      
   --   
   ralph   
      
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