Biochar is clean charcoal made for soil application, where it sequesters carbon from the atmosphere for tens of thousands of years, acting to reduce climate change. Binding with lead in toxic soils, biochar remediates soils, reducing plants’ uptake of toxic substances. When made, the heat of the fire transforms the chemical structure of carbon, which then acts as a permanent humus in soil improving soil health for nutrient dense vegetables. Deep fertile prairie and man-made Terra Preta soils came from biochar.
Michigan Ecovillage 501c3 is sponsoring a biochar demonstration utilizing the low-tech Neolithic pit pyrolysis kiln, which anyone can replicate.
Also, Paul McCullough from the Sierra Club Regenerative Food and Agriculture Committee will demonstrate Top-Lit UpDraft (TLUD) pyrolysis, with biochar cook stove technology.