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Biochar can produce energy, is a very good fertilizer and reduce important quantities of CO2 in the… Tags: CO2, biochar Stefano Viaggi Mar 20, 2010 16 views
Nathaniel has succeded in building an economical, effective stove working with pyrolysis. His Lucia… Tags: Learn3, CO2 Stefano Viaggi Mar 20, 2010 102 views
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