Biochar starts as biomass - plant matter, old wood, agricultural waste - that is pyrolyzed, or heated to high temperatures without oxygen. The result is a solid chunk of carbon that can no longer decay and release CO₂ back into the atmosphere. Biochar is an example of a CDR method that comes with an end product that can be used for many things, including as a soil amendment. Our biochar removals are supplied by Pacific Biochar.