Essay - The Ring of Haze Surrounding Modern Cities Looms Ominously and...

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The ring of haze surrounding modern cities looms ominously and the hole in the ozone layer grows, but people rarely underst***** that air pollution is within our control. The causes of air ***** are many, and save for natural contri*****ions to temporarily poor ***** quality, ***** bulk of air pollution problems are results of human technological advances. Since the Industrial Revolution, massive amounts of fossil fuels like coal ***** oil have been and continue to be consumed. The benefits of industry may indeed outweigh the detriments, but it is finally time for technology to solve its own problems. Until the past few decades, the sp*****s ***** industrialization were taken for granted. We can forgive our forebears for ********** ignorance in developing technologies with unforeseen consequences. Who could have known how human life would benefit by burning ***** for electricity or oil ***** au*****mobiles? However, the burning of these fuels has caused an epidemic of health ********** environmental problems and contributed to a general degradation ***** ***** on earth.

Air ***** is a broad term ***** actually refers to a gamut of familiar environmental problems. *****se ***** include acid rain, domestically produced smoke, smog, the greenhouse effect, particulates, radionuclides, and ***** depletion of the ozone *****. By far the biggest contribu*****r to air pollution in general is ***** ***** ***** fossil fuels, by both automobiles and factories. Power stations and road vehicles are boons to civilization but are also at the root of environmental and health d*****asters. Acid rain is one of the fallouts of the Industrial Revolution; before the proliferation ***** *****, the pH level of rain tended to be slightly **********, ***** rarely *****low ***** 5. Since the Industrial Revolution, sulphuric acid ***** nitrogen gases that evaporate and combine with ********** water cause rain to ***** a pH level of 5 or lower. C*****rs are also the most major contribu*****r to smog. Cities with huge transportation networks exhibit ***** highest levels of smog, especially if the city is geographically located in a bas***** that traps air. Los Angeles and Mexico City ***** perfect examples of ***** havens. The internal combustion engine ***** have revolutionized human l*****e, but it also pollutes it due to the number ***** particulates that now litter our air. Particulates are the large particles suspended in ***** air that not only cause smog ***** seep *****to the lungs of all animals. They include ***** from smoke, diesel fuel, ***** dust.

Fossil ***** burning at power st*****ions also ***** an excess of carbon dioxide to be emitted in***** the environment. This not only creates acid rain but also contri*****es to the greenhouse ***** and global warming. Chlorofluorocarbons, which are commonly used in ***** conditioning, refrigeration, and solvents, also kindle ***** greenhouse effect, as does deforestation. Agriculture and w*****te disposal ***** also ***** culpr***** that bring about ***** warming as their ********** emit ***** *****.

***** come from processes like X-rays that emit ionizing radiation, causing severe detrimental effects on ***** life forms. Besides governmental regulation, steps must


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