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Saturday, 24 October 2009
Essay 017 (alternative energy sources)
You should spend about 40 minutes on this task.
Write about the following topic:
One-day the world’s oil and gas reserves will run out. The search for alternative energy sources like wind power, solar power, burning waste, and water power are causing as much environmental damage as the oil and nuclear power sources they are intended to replace.
•How far do agree with this latter statement?
•What possible benefits do the alternative energy sources bring? Or what damage do they cause?
Give reasons for your answer and include any relevant examples from your own knowledge or experience.
You should write at least 250 words.
The depleting petroleum resources with its huge environmental hazards have forced scientists to search for a perfect alternative energy that can replace this conventional power source. Although alternative fuels like wind power, solar energy have certain disadvantages, they will emerge as a force to reckon with in meeting the world’s energy shortage and replacing oil and gas.
In the first place, alternative energy sources, like solar power, is clean and environment friendly. This should be seen against the fact that traditional sources of energy like gas and petrol cause enormous damage to the environment. However, the problem with this is that the cost of power generation is much higher as compared to mining and processing petroleum. This problem will soon be overcome as a great deal of research is now going on in order to reduce the cost of photovoltaic technology. If this is achieved in the near future, which definitely is a possibility, the energy needs of the world will easily be met. Energy from wind and water is also equally environment friendly, although it is sometimes said to be unreliable. Burning waste may have the disadvantage of polluting the environment by emitting smoke, but we need to take into consideration the amount of waste that is removed through this process.
Secondly, alternative energy is never ending and renewable because sources like sun and water will never be exhausted and do not use up natural resources. A perfect example of this would be solar energy, which is generated from the heat of the sun. In contrast, traditional way to sourcing energy eat up precious natural resources and are not renewable.
Overall, one can clearly come to a conclusion that alternative sources of energy are environment friendly and a perfect replacement for oil, gas and even nuclear energy. With the right research and use of modern technology, we can foresee a pollution free world of energy.