' Organic ' may reduce greenhouse gases , provide clean energy , improve farming . Its high carbon content and porous nature can help soil retain water , nutrients , protect soil microbes and ultimately increase crop yields while acting as natural carbon sink - sequestering CO2 and locking it into the ground . Organic waste can be turned into valuable , renewable resources . Ancient farming method could improve crop yields . Experts : Biochar could reduce harmful global CO2 emissions .
' Organic ' may reduce greenhouse gases , provide clean energy , improve farming . Organic waste can be turned into valuable , renewable resources . Ancient farming method could improve crop yields . Experts : Biochar could reduce harmful global CO2 emissions .