Loops of Change: the Positive Feedback Loops that Drive Climate Change (Part III)

NASA satellite image (with inset) from July 15, 2011 showing sea ice extent and concentration. Purple identifies areas of high sea ice concentration, while red and yellow show areas of low concentration. The Biological Pump Earlier this week, the National Snow and Ice Data Center reported that Arctic sea ice extent read more Loops of Change: the Positive Feedback Loops that Drive Climate Change (Part III)