Hydrogen production. Green algae as a source of energy

Hydrogen gas is thought to be the ideal fuel for a world in which air pollu tion has been alleviated, global warming has been arrested, and the environ ment has been protected in an economically sustainable manner. Hydrogen and electricity could team to provide attractive options in transportation and power generation. Interconversion between these two forms of energy sugges ts on-site utilization of hydrogen to generate electricity, with the electr ical power arid serving in energy transportation, distribution utilization, and hydrogen regeneration as needed. A challenging problem in establishing H-2 as a source of energy for the future is the renewable and environmenta lly friendly generation of large quantities of H-2 gas. Thus, processes tha t are presently conceptual in nature, or at a developmental stage in the la boratory, need to be encouraged, tested for feasibility, and otherwise appl ied toward commercialization.