Current studies are in many cases conceptually or geographically limited, and are often
constrained by limited experimental data. In particular, mechanistic descriptions of the
characteristics of biochar and its function in the soil and experimentation relevant to widescale
applications of biochar are currently limited. In this report we examine existing
published research within a framework constrained by a policy context. Thereby, we aim to
identify gaps where new research should be focused in a way that will enable biochar to
engage with climate change mitigation and to maintain soil productivity.