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A Pre-Columbian Brazilian Practice Teaches World How to Grow Food PDF Print E-mail
2008 - April 2008
Written by Kelpie Wilson   
Wednesday, 23 April 2008 01:26

Brazil's terra preta or biochar With food riots across the globe in the news, the immediate cause of food shortages is simply this: grain prices have doubled over the last year and poor people can no longer afford to buy enough food. There is no one single cause for the price rise; it is a combination of supply and demand.

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