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Posted Fri May 23 2008: from European Science Foundation, via EurekAlert:
Ocean acidification -- another undesired side effect of fossil fuel-burning http://apocadocs.com/s.pl?1211546803
 "Ocean acidification is more rapid than ever in the history of the earth and if you look at the pCO2 (partial pressure of carbon dioxide) levels we have reached now, you have to go back 35 million years in time to find the equivalents"... A maximum allowed change in pH, where the system is still controllable, needs to be found. This is a major challenge considering the multifaceted unknowns that still are to be clarified. This so-called "tipping point" is currently estimated to allow a drop of about 0.2 pH units, a value that could be reached in as near as 30 years. More research and further modeling needs to be undertaken to verify the predictions.
[Read more stories about: ocean acidification]

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The ApocaDocs say:
Um, yeah. More research is needed to determine this point before we tip it.

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