25/10-gallon 2-Barrel Burner simplest of the simple Folke Gunther Sweden April 2008 55/30-gallon 2-Barrel Nested Retort David Yarrow Albany, NY first burn, June 2009 55/30-gallon Rocket Stove+Retort Jim Welch Troy, NY first burn, September 2009 carbon-negative Greenhouse Heating Alex English Kingston, Ontario March 2009
55/30-gallon 2-Barrel Nested Retort David Yarrow Albany, NY first burn, June 2009 55/30-gallon Rocket Stove+Retort Jim Welch Troy, NY first burn, September 2009 carbon-negative Greenhouse Heating Alex English Kingston, Ontario March 2009
55/30-gallon Rocket Stove+Retort Jim Welch Troy, NY first burn, September 2009 carbon-negative Greenhouse Heating Alex English Kingston, Ontario March 2009
carbon-negative Greenhouse Heating Alex English Kingston, Ontario March 2009
Charcoal assorted views
Biochar microscopic views
Soil Organisms microscopic views
Biochar Gardens flickr photos Kelpie Wilson, IBI Bob Wells' 8-pound Turnips grown in biochar-enhanced Cape Cod beach sand before biochar, Bob grew 2-pound turnips
BIOCHAR: