Agriculture in the least developed countries (LDCs) is highly vulnerable to the impacts of climate change. Applying biochar to soils has been proposed as a solution, especially in the carbon-depleted and acid sub-Saharan soils. Correctly applied, biochar increases yield capacities, decreases contamination, and promotes resilience. Hope is that biochar will store atmospheric carbon in soils, thus generating negative emissions. Nonetheless, several goal conflicts may arise, for example, between the global aspirations to achieve negative carbon emissions and local sustainability. Using interviews, a survey, and field visits to biochar initiatives in Tanzania, this chapter explores deployment drivers and barriers in LDCs and their implications for biochar carbon removal in local contexts. As such, it seeks to address a gap in the literature on actual, opposed to hypothesized, engagement of biochar practitioners. The chapter concludes that the idea of carbon removal alone is unlikely to motivate widespread biochar deployment in LDCs. Optimization of carbon content and stability must be balanced against maximizing yields with minimum inputs. Tangible results drive deployment among smallholders and agricultural businesses alike, yet developing biochar systems is challenging due to their complexity and long lead times. Thus, while financing and external expertise are vital at the initial stages, education,  wareness, and persistent demonstration are key to sustained action.