. Moreover, the production and use of this source cause a plethora of hazards both to man and his balanced environment.The non-fossil, non-nuclear energy possibilities fall in three groups: namely, non-solar such as geothermal and tides; indirectly solar such as winds and ocean thermal gradients and directly solar, which among other options includes photosynthesis. All other alternative sources under this category have one or the other practical hurdles in the way of their harnessing energy. Viewed from economic, technological, social, and material factors, they lack the capacity of meeting our future energy needs. Photosynthesis or the photobiological process is a continuous activity, creating organic carbon that burns with less air pollution than fossil fuels. Photosynthesis helps to remove carbon dioxide from the atmosphere and generates oxygen, the life sustaining gas. It thus helps to minimize environmental pollution. During the last hundred years, the concentration of carbon dioxide has significantly increased due to an ever increasing use of fossil fuels. In the last decade alone, it has increased by about 100 ppm. This is likely to warm Garg and Kumar 125up the upper layers of the oceans and cause a rise in the sea level (Vimal and Tyagi, 1984).