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Vol. XXI, No. 4
ing sickness and tension including increase in heart beat. Air pollution produces acid rains and changes the pH values of the earth's resources.
Nuclear explosions are the greatest danger to living. The toxicity is 100 million times more than that of cyanides and other reagents. The chemical products like DDT, pyrethroids, nicotine, heavy metals, chlorinated hydrocarbons affects kidney, lungs, nervous system, endocrinal and gonadal systems of the human. The role of asbestos for lung cancer, benzene for leukaemia, ketone for sterility and vinyl chloride industries in cancer of liver are well known. The use of mercury and cadmium has already been banned in Sweden and Japan respectively.
The supersonic air transport destroys ozone layer of the atmosphere which filter solar radiations. It has been found that 8% depletion of ozone led to an increase, in 8,000 cancer cases in U.S.A. alone. The list of chemicals damaging nature is very big and beyond the capacity of this paper. In brief it can be said that there are about 35,000 chemicals potentially hazardous to human health already available in market. Mar's Present Position
Today, the position and future of man has been shaken. Science treat man less than man and nature less than nature. We have developed a wrong concept of progress and relate it only with technological advancement.
The technological advancement have given higher place to the things rather than persons, which has increased our wants rather than enjoyment. Today environment is an unpleasant word. We hear it on all side, i.e. speeches, motion picture, still picture, and T.V. programmes showing how awful it is, A variety of factories, buildings, homes, automobiles, burning of garbage piles, are releasing waste products into air and thus conteminating our environment continuously. Conservation of Environment
The ecological imbalance in the nature has compelled the so called civilised man to think and work to stop further damages to our environment.
We have to introduce in the minds of children that we are surrounded by the beauty of nature and we should sustain and enhance it. One can take from the earth and atmosphere only so much as one put into them. It is imperative that all people should renew their appreciation on nature, take living care on it, eliminate sources of pollution and endeavour to restore and maitain the order and barnony therein.
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