<http://schema.org/description>
"Biochar could sustainably offset as much as 1.8 billion metric tons of carbon emissions annually, or up to 12 percent of global greenhouse-gas production, according to a new study."^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/biochar-could-offset-up-to-12-of-greenhouse-gases-says-study/>