Biochar Could Make a Significant Dent in Global Greenhouse Gas Emissions Posted on February 17th, 2010 by dpacheco So what is biochar and how is it going to save the world? Let’s start with a definition. Biochar is fine-grained charcoal used as a soil supplement. Not too terribly exciting. But what is exciting, especially to climate scientists, is the potential applications. The process of creat…