Its political recognition was put forward especially at Heiligendamm in 2007, when the effect of carbon dioxide emission and its hazard in global climate were discussed and shared univsallyas common knowledge. Controlling the global warming in the economical framework of massive development worldwide through this new century is a very challenging problem not only among political, economical, or social circles but also among technological or scientific communities. As long as the humans depend on the combustion of fossil for energy resources, the waste heat exhaustion and CO emission are inevitable. 2 In order to establish a new era of energy saving and environment benign society, which is supported by technologies and with social consensus, it is important to seek for a framework where new clean energy system is incorporated as infrastructure for industry and human activities. Such a society strongly needs innovative technologies of least CO emission and efficient energy conversion and utilization from remaining fossil energies on the Earth. Energy recycling system utilizing natural renewable energies and their version to hydrogen may be the most desirable option of future clean energy society. Thus the society should strive to change its energy basis, from foss consuming energy to clean and recycling energy.