• 

  Richard Alley: "The Biggest Control Knob: Carbon Dioxide in Earth's Climate History" - YouTube

  http://www.youtube.com/watch?v=RffPSrRpq_ghttp://www.youtube.com/watch?v=RffPSrRpq_g

  From the 2009 AGO Fall meeting. Original here: http://www.agu.org/meetings/fm09/lectures/lecture_videos/A23A.shtml http://mind.ofdan.ca/co2-is-and-has-always...

• 

  Richard Alley: "The Biggest Control Knob: Carbon Dioxide in Earth's Climate History" - YouTube

  http://www.youtube.com/watch?v=RffPSrRpq_g&t=42m06s

  From the 2009 AGO Fall meeting. Original here: http://www.agu.org/meetings/fm09/lectures/lecture_videos/A23A.shtml http://mind.ofdan.ca/co2-is-and-has-always...

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