Mongabay: 11:53:18 AM–> Biochar and its Role in Mitigating Climate Change Salman Zafar December, 17, 2008 The growing concerns about climate change have brought biochar, a charcoal produced from biomass combustion, into limelight. Biochar is a carbon-rich, fine-grained residue which can be produced either by ancient techniques (such as covering burning biomass with soil and allowing it to smolder) or state-of-the-art modern pyrolysis …