Hi,
Just read an interesting article in the June edition of Scientific American. I checked and its available on-line at http://www.scientificamerican.com/article.cfm?id=phosphorus-a-looming-crisis. America is a net-importer of phosphorus, and we may be as vulnerable to a monopolization of this commodity as we currently are with oil. So just breaking the chain of foreign oil is not enough, we must make sure we have sustainable access to phosphorus. The author details how increasing the big three: Reduce, Reuse, Recycle will increase our ability to continue to support our growing population.
Bob
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