• 

  PBS Frontline: Climate of Doubt

  Published On: May 2, 2013
• 

  Obama calls for swift action to tackle emissions

  Published On: May 2, 2013
• 

  Ice sheets and sea level in a warming world

  Published On: May 2, 2013
• 

  The Medieval Warming Crock

  Published On: December 3, 2010

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