This is really fascinating, is biochar notably different from, say, charcoal? Or is it a trendier name for what we've already got? I've looked at pyrolysis fo

This is really fascinating, is biochar notably different from, say, charcoal? Or is it a trendier name for what we've already got? I've looked at pyrolysis for home sustainability and have yet to find a good set of resources for it outside making charcoal.