Mr. Bogale has been working in Ethiopia, and has developed a carbonizer that would allow a small land-holder to make charcoal out of agricultural residues and then dry and package that charcoal either for their own use, or for sale.
A study recently completed in New Zealand found that adding biochar to the soils of pastures where Cows (ruminants) were grazing sharply decreased the excess nitrous oxide from the cows urine. It appears that the biochar helps the soil absorb the extra gasses although long term testing of the effect of cow urine and pasture with biochar still needs to be done.
