Cause and Effects of AIR POLLUTION Persuasive Speech Topics

English_Master August 6, 2013 No Comments
Persuasive Speech Topics on AIR POLLUTION Before 1970 air and water pollution were considered serious problems. Noise and nuclear pollutions were added to these too – and ozone too. The smog that reduced the visibility in Malaysia and Mexico City and later the smog that engulfed the Los Angeles Valley in California in 1970 compelled the world to rise from the slumber. This photochemical smog was caused by the automobiles emitting different gases. Formerly only carbon dioxide was considered as the culprit. Carbon monoxide, hydrocarbons and nitrogen oxides were added to the list. Scientifically it was proved that the problem was severe as the sum of these three pollutants can create havoc. That is what we are observing throughout the world as automobiles are considered the most convenient source of travel. In 1999 the numbers of vehicles in India were estimated at 35 million. It was expected to be 53 million by the end of 2000.3.6 million vehicles are produced per year. The older vehicles emit more gases. This damage can hardly be rectified. In a few decades India may become not only a super vehicular country in the world but a super vehicle polluted country too. We have generally been talking about the levels and density of air...
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