7 Billion People Special: Population-Environment
Updated: 2011-10-25 15:52
(Agencies)
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| A swimmer in the sea waves to friends on a snow-covered beach at Alimos suburb near Athens, in this file picture taken February 18, 2008. [Photo/Agencies] | 
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| Men clean up engine fuel from a refrigerator ship that ran aground near Algeciras, southern Spain, in this file picture taken Jan 30, 2007. [Photo/Agencies] | 
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