Don't be fooled by simplicity: biochar requires careful creation

By Jamie Brown
Updated February 3 2016 - 2:07pm, first published 4:59am
In China biochar is being used to improve farmed soils and wash industrially contaminated soils - sequestering lead, zinc and cadmium in the process. File photo.
In China biochar is being used to improve farmed soils and wash industrially contaminated soils - sequestering lead, zinc and cadmium in the process. File photo.

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