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• 15:42, 9 September 2009 Mari Cruz Garcia Vallejo (talk | contribs) uploaded File:Co2levels.jpg (c02lecvees in the last 60.000 years)
• 15:31, 9 September 2009 Mari Cruz Garcia Vallejo (talk | contribs) uploaded File:Co2 levels.jpg (levels of co2 over the past 60.000 years Source TT Totnes 2007)