Thread: Polar vortex
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Old 11-10-14 | 02:53 PM
  #99  
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tjspiel
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From: Minneapolis
Originally Posted by achoo
Indeed.



Amazing. Today's CO2 concentration in the atmosphere is a bit under 400 ppm. Which is about as low as it's EVER been - CO2 concentrations have been as high as 7,000 ppm in the past.

Here's another:



NB that temperatures have little to do with atmospheric CO2 concentration.
You might want to do a little research on Nasif Nahle before you take the above charts too seriously.
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