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Tuesday, December 2, 2008

Question 30 Earth is being harmed (damaged) by human activity

Question 30

Some people believe that the Earth is being harmed (damaged) by human activity. Others feel that human activity makes the Earth a better place to live. What is your opinion? Use specific reasons and examples to support your answer.


Answer

Human activity makes the state of the Earth worse. Some phenomena are said to be caused by human activity. People are afraid what happens in one hundred years later. They think that humans may not live safely. Three reasons, the environment, energy, atomic war, are described in this essay.

The primary reason is the environment. It is said that the warmth of the Earth is caused by human activity. Gases making the Earth warmer are CO2, CH4. People cut trees which absorb CO2. CO2 unabsorbed by trees covers the Earth. It prevents the heat from going out of the Earth. Also, people produce a large amount of gases a year. They have increased every year. Almost of the countries talked to try to reduce the gas level until that of 1990. However, the country producing the most gases, the United States, disagreed it. The warmth of the Earth will be worse.

Also, the energy problem is significant. The energy humans use has increased. These days, the industry of developing countries progresses. They use more energy than they did ten years ago. For example, the industry of China is stronger now. It has a billion people. The energy it uses has been increasing. To avoid this problem, humans should invent the substitute. Usually, humans use gases to get energy to drive cars and to get electricity. However, they produces CO2 very much. Another resource People use now is Atomic power. It is clean but dangerous to use. Many countries give up using it. We need to ponder a new clean and safe energy.

Another fear is atomic war. War itself does not influence to the Earth so much. However, atomic war is different. If a country attacks another country by an atomic bomb, the attacked country will attack by an atomic bomb automatically. Both countries will attack each other many times by atomic bombs The problem is that an atomic bomb has radiation. Once it is used, the surface of the Earth will be exposed by radiation. It does not disappear for thousands years. People can not remove the radiation if they use it once.

In conclusion, human activity damages the Earth. Humans should consider the Earth more. The damage of the Earth influences human beings. It is a confound problem for both humans and the Earth.

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