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Supertopics:
Phosphorus Depletion (Peak Phosphorus)

Phosphorus Depletion (Peak Phosphorus) through 2013

Documents:
clarifying the key issues of peak phosphorus
webDana Cordell and Stuart WhiteSustainability2011-10-24
sewage plants as phosphate resource
webMark HumeGlobe and Mail2009-05-18
phosphorus and global food security
webDana Cordell, Jan-Olof Dranger...Global Environmental Change2008-10-30
phosphorus decline worries scientists
webHallie WoodsThe Coloradoan2008-04-03
farming faces phosphate shortfall
webMario OsavaTierramerica2007-10-19