Although bio fuel has been recognized as a great weapon in the battle to reduce greenhouse gases, and Japan too has set a target of introducing 5 million kilolitres by 2010, there are still misgivings concerning the competition that it poses to the growing of food and its effect on soil, forests, and ecosystems. As sufficient data gathering and investigative research, including field surveys and environmental impact assessments, are essential in order to get an indication of what would constitute as a sustainable use of bio fuels, this research aims to investigate and analyze literary sources, investigate the effects of increased demand on the countries of production, consider the arguments being raised overseas, and hold symposiums to help drive sustainable bio fuel use.