Frozen Carbon
http://www.nytimes.com/interactive/2011/12/17/science/earth/1217-permafrost.html?ref=earth

Jonathan Corum, New York Times


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This is a polar map of permafrost extent in the Northern Hemisphere. A sidebar explains how permafrost, as it forms and later thaws, serves as both a sink and source for carbon to the atmosphere. Related multimedia is a slideshow of permafrost scientists from U. of Alaska, Fairbanks, collecting permafrost data in the field.


Subject: Biology:Biogeochemistry, Geoscience:Atmospheric Science:Climatology , Environmental Science:Global Change and Climate
Grade Level: College Lower (13-14), Middle (6-8), High School (9-12)
Theme: Teach the Earth:Enhancing your Teaching:NGSS, Teach the Earth:Course Topics:Environmental Science, Atmospheric Science, Teach the Earth:Incorporating Societal Issues:Climate Change, Teach the Earth:Course Topics:Biogeoscience