North American Biochar Symposium 2013: Small Scale Devices for Production ...Resource Item Anderson, 2013, SST13010North American Biochar Symposium 2013: Small Scale Devices for Production of Biochar Note: The […] 6 August 2014 tagged Biochar - Char - Charcoal / Household Cookstoves / PowerPoint Presentations / Anderson (Paul S.) / Frogner (Karl) / Taylor (Paul O.) / English / SS - Slideshow Presentation (ex. MS PowerPoint File) by admin (updated on 18 December 2014)