Biochar, Carbon Credits, & Nutrient Removal Credits
In the biochar industry, two complementary credit markets—carbon credits and nutrient removal (or reduction) credits—can be generated through both biochar production and its application to agricultural systems.
Carbon credits:
Biochar production converts biomass (crop residues, manure solids, forestry waste) into a stable, carbon-rich material through pyrolysis. A large fraction of the carbon in the original biomass is transformed into recalcitrant carbon that remains locked in soil for hundreds to thousands of years. This long-term sequestration is quantified, verified, and issued as carbon removal credits under recognized standards (e.g., biochar carbon removal). Credits are generated at the production stage, based on feedstock type, conversion efficiency, carbon content, and permanence.
Nutrient removal credits (phosphorus and nitrogen):
When biochar is applied to farms—especially those with manure or fertilizer surpluses—it helps retain and immobilize nutrients within the soil system. Biochar adsorbs ammonium, nitrate, and phosphate, reduces leaching and runoff, and improves nutrient use efficiency by crops. In some cases (e.g., manure treatment, bedding, or filtration applications), biochar directly captures nutrients before they leave the farm system. Verified reductions in downstream nutrient loading to watersheds can be converted into nutrient reduction or removal credits, often used in water quality trading programs.
Why biochar is unique:
Biochar can generate stacked environmental value—carbon removal credits from production and nutrient reduction credits from use—while simultaneously improving soil health and farm economics. This makes it one of the few technologies that addresses climate mitigation and water quality goals at the same time.
