D. C. Agrawal
Description:
According to M King Hubbert, a pioneer on fuel reserves, on an annual basis about 1.26x1021J of solar energy in thephotosynthetically active region goes for photosynthesis over the globe whereas the harvested value as reported byFood & Agriculture Organization is more than two times of this estimate. This paper derives the value of the upperlimit which can be harvested under ideal conditions and it is shown that at present the world consumes only 0.1% ofbiomass that can be so produced. This gives hope that the growing huge population of world will not starve.