Abstract: The invention is a system and methods whereby biomass is gasified in a reactor vessel producing carbon char for the purpose of sequestering that char in soil, thereby reducing the carbon in the atmosphere. The invention relies on a renewable source for the biomass and a dedicated land area for sequestering the carbon char. The process in the reactor vessel is monitored and controlled to produce char with characteristics beneficial to the soil in which it is sequestered and to the plants growing in that soil. The net affect is “Carbon Negative.” The process returns only part of the carbon in the process feedstock to the atmosphere, thereby reducing atmospheric carbon dioxide in proportion to the amount of carbon char sequestered in the soil. The process produces a gas by product that may be burned for heat or used as a feedstock for other processes.