man hands hold black granules biochar pellets. handful of charcoal pellets fuel in a person hands. organic biochar derived made

agriculture biocarbon biochar biological biomass black carbon change charcoal climate derived dirt earth eco ecology energy environment environmental farming fertilizer fuel gardening granules green ground growth hand handful hands hold impact innovation man material organic pellet pellets person plant power productivity pyrolysis recycling reducing resource sanitation seed solution sustainability sustainable technology torrefied waste wood woodworking woody zero