MOST DRAMATIC DROPS in atmospheric CO2 concentrations during the past 2000 years (as recorded in two Antarctic ice cores) occured around the same periods that disease outbreaks were taking the greatest toll on human life (yellow bars).
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2 comments:
(Maybe it appears twice since I tried it before too but it didn't work out correctly.)
Just wanna give you a welcome comment though have nothing now to tell. But am happy of finding you also in this cummunity of webloggers. In future, I will see you more here for sure and well,... will try to comment you in Persian, if I can figure it out how to do so.
you may find this graph and its subtitle (of course more clear than this one) at the folowing like:
http://www.atmos.ucla.edu/~liougst/Lecture/Ruddiman_SciAm_2005.pdf
which were written by Ruddiman and William E.
(Copy right!)
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