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Group 5 |
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The Sky is Getting Dustier and Dustier |
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Environmental protection which we¡¦re concerned about the most nowadays. The slogan is, ¡§Protect our environment. Protect our humanity.¡¨ Ancient poets wrote the sky, ¡§a blue sky without dust.¡¨ Modern writers write the sky: |
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A blue sky, not a dust, crystal clear, is transparent. What a pity is, we seldom can see beautiful sky in today especially in the city or the industrial district. The haze covers the sky; it is really unpleasant. ¡@ |
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However, temporary development and operation actually destroys the ozone layer. Massively we use refrigerators, automobiles, and air conditioners for convenience. This enormously consumes ozone. British scientists have discovered the sky in the Antarctica has created an ozone cavity sine 1985. Until now, scientists also successively discovered three ozone cavities in Ching Kang Zang Plateau in China. The appearing cavities seriously threaten the earth and human security. |
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The humans have no option but taking immediate action to stop environmental pollution and prevent ozone from wasteful consumption. Scientists from all over the world propose many ways including questioning how to protect the ozone layer. Among massive reduced fumes, discharging is an important measure. Although fumes work the progress slowly, it is effective means after all. Various countries are taking the measure now like stopping using of the chemical in refrigerator and fire extinguisher. |
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The best method to protect environment is to reduce pollutants. Mist and dust are mainly produced by combustions of fuel and coal. Replacing fossil fuels such as petroleum and coal with clean energy is necessary. When coal is burned to produce energy, it generates at the same time ashes and sulfur which may cause our breathing system infected. Using water or solar energy is good idea because it is clean and infinite. Besides, this can promote and keep technology in progress. Planting trees and flowers in more parks and boulevards also provide us fresh air in city. |
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Air pollution is a problem created by man. Eventually only man can resolve it. But time does not wait as the problem is getting worse and worse. We must take immediate action to purify the atmosphere. ¡@ |
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Word count: 376 ¡@ |
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