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发表于 2008-8-12 14:27:20
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When it comes to energy crisis, quite a few people would claim that humans need to explore new possibilities of energy resources for future use. Although fossil fuels have plenty of advantages, there is a reason and rhyme that the benefit of new energy resources should never ignored.
First of all, new energy resources are relatively unlimited. Since the sun, the wind and water have huge energy, and they are universe, it would contribute a lot to humans’ life. For example, a dam built would store a great amount of energy from the rivers, or streams. Likewise, compared with fossil fuels – such as gases and oils, the sun energy is universe and could be renewed. In contrast, the fossil fuels are limited, and they could satisfy humans’ use for only 60 years.
In addition, the new energy resources do not cause much pollution [U]. Those traditional fuels, like the gases, cause too much air pollutions. For example, for a long time, citizens suffer a lot from the car exhausts, the smoke of large factories, and the polluted drinking water. Unlike these traditional energy resources, new sources come from the sun, the oceans, or the wind. This means that dwellers could gain these energy resources by not using a harmful way.
Finally, the new energy resources will ultimately satisfy humans’ increasing demands. Since the increasing world population is an unavoidable fact, more and more people will consume the limited nature resources in the globe. The increasing cars, buses, subways, and airplanes are demanding huge energy resources, and unfortunately, there are only a limited amount of nature resources for current use. Thus scientists have to explore diverse new energy resources as sources of future use.
By and large, the marriage of renewable, unlimited qualities and the availability of large produced, together with meeting the increasing demand of people, new energy resources will gain their popularities in the future.
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