It was used by the people of the Amazon for thousands of years. Now Australian researchers say biochar could reduce atmospheric carbon dioxide - while providing a new source of energy, and boosting farm productivity.
Please read the following articles
http://biopact.com/2007/06/research-confirms-biochar-in-soils.html
http://www.smh.com.au/news/environment/surprise-less-oxygen-could-be-just-the-trick/2007/06/11/1181414217317.html
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