
Carboneers works with smallholder farmers in Ghana, to convert agricultural residues into biochar which can be used to improve soil fertility and generate additional income. In 2025, Carboneers upgraded their artisanal biochar production by adopting “Earth Kilns” to improve the production emission tracking and provide more worker safety during the production process.

Artisanal biochar is produced using small-scale, often traditional methods accessible to rural communities. Biochar is a charcoal-looking, carbon-rich substance that is produced when materials like agricultural residues are heated in a process called pyrolysis.