GreenTracker| In early 2010 scientists reported that ‘biochar’ — a material that the Amazonian Indians used to improve soil fertility centuries ago — might be an asset in the fight against global warming. Biochar as charcoal can be produced by heating wood, grass, cornstalks or other organic matter in the absence of oxygen.
This month scientists in New Zealand report that using biochar in the soil could be used to supress nitrous oxide from livestock. Over a period of 86 days biochar effectively suppressed the nitrous oxide patches produced by cattle urine by 70%. The researchers say the addition of biochar into the soil left no detrimental