Exponential growth — doing more with less Posted on 15/07/2013 by Trevor Brian Cartwright on the “biochar multiplier factor”. http://tech.groups.yahoo.com/group/biochar-policy/message/4748 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Share on WhatsApp (Opens in new window) WhatsApp Share on LinkedIn (Opens in new window) LinkedIn Like this:Like Loading...