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Acidifying Oceans Spell Bleak Marine Biological Future 'by End of Century', Mediterranean Research Finds http://apocadocs.com/s.pl?1283350460
A unique 'natural laboratory' in the Mediterranean Sea is revealing the effects of rising carbon dioxide levels on life in the oceans. The results show a bleak future for marine life as ocean acidity rises, and suggest that similar lowering of ocean pH levels may have been responsible for massive extinctions in the past.... 'A tipping point occurs at mean pH 7.8. This is the pH level predicted for the end of this century'.
Rising carbon dioxide levels acidify the ocean, which has a particularly devastating effect on organisms that have calcium carbonate shells, like Foraminifera.
'Forams are well preserved in the fossil record, which is why we chose to study them', says Dr Hall-Spencer. 'We knew the results were likely to show a decline in foram diversity but we weren't expecting such a seismic shift'.
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[Read more stories about:
ocean acidification, carbon emissions]
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