Monday, November 23, 2009

Swimmers, Hoppers and Fliers: How Do Toxic Chemicals Move around the Planet?

Swimmers, Hoppers and Fliers: How Do Toxic Chemicals Move around the Planet?  
Toxic chemicals created by human activity reach unusual concentrations in the Arctic, among other places  
http://www.scientificamerican.com/article.cfm?id=how-do-toxic-chemicals-move-around-planet&print=true
 
 

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