David Zaks


Terra Preta: black is the new green

Amazonian Dark Earth, or terra preta do indio, has mystified science for the last hundred years. Three times richer in nitrogen and phosphorous, and twenty times the carbon of normal soils, terra preta is the legacy of ancient Amazonians who predate Western civilization…Claims for biochar’s capacity to capture carbon sound almost audacious.

August 14, 2006

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