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Supertopics:
Phosphorus Depletion (Peak Phosphorus)

Phosphorus Depletion (Peak Phosphorus) through 2013

Documents:
webDana Cordell and Stuart WhiteSustainability2011-10-24
webDana Cordell and Stuart WhiteSustainability2011-10-24
webMark HumeGlobe and Mail2009-05-18
webDana Cordell, Jan-Olof Dranger...Global Environmental Change2008-10-30
webHallie WoodsThe Coloradoan2008-04-03
webMario OsavaTierramerica2007-10-19