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News, research, events, and field reports from the Sonoma Biochar Initiative — newest first.

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December 19, 2012

The Secret of El Dorado—Terra Preta

If you have time over the holidays check out this video: Produced by the BBC, this program gives an excellent historical overview of the terra preta (dark earth) soils in the Amazon and lays out an impressive case for using charcoal (we call it biochar) as a soil amendment to help build and maintain soil […]