The article explores the potential of biomass as a green energy source to mitigate the global greenhouse effect through sorption-enhanced biomass gasification. A technoeconomic and environmental evaluation was conducted on a biomass-to-hydrogen (BTH) process using a fluidized bed gasifier, compared to alkaline water electrolysis (AWE). The study indicates that the BTH system offers lower hydrogen production costs and better greenhouse gas emission reductions, making it a more sustainable option. Biomass gasification, coupled with in situ carbon capture, can lead to negative carbon emissions, contributing to a greener energy production process. Despite challenges like tar formation in biomass gasification, advancements in technology and optimization show promise for improving the efficiency and environmental impact of biomass-to-hydrogen production systems.