'Biochar'

'In Brazil\'s Central Amazonian Basin scientists have studied how these farmers, for thousands of years, have created rich soil to support microbial life and improve their crop yields. Their secret is a principle called Terra Preta. Today companies use technology to create a modern version of terra preta. It\'s called Biochar.  To know more visit http://thelexicon.org  A Rumplefarm, LLC Production Produced by Laura Howard-Gayeton Written and Directed by Douglas Gayeton Edited by Pier Giorgio Provenzano  Help us caption & translate this video!  http://amara.org/v/FGng/' 

Tags: pbs , know your food , biochar , Douglas Gayeton , Laura Howard-Gayeton , Pier Giorgio Provenzano , thelexicon.org , the lexicon , lexicon of sustainabilty , itvs

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