Contoh Disccusion

The Advantage and Disadvantage of Nuclear Power

Nuclear power is generated by using uranium which is a metal mined in various part of the world. The first large scale of nuclear power station was opened at Calder Hall in Cumbria, England in 1956.
Some military ships and submarines have nuclear power plant for engine. Nuclear power produces around 11% of the world's energy needed, and produces huge amounts of energy. It cause no pollution as we would get when burning fossil fuels. The advantages of nuclear plant are as follow:

• It costs about the same coal, so it is not expansive to make.
• It does not produce smoke or carbon dioxide, so it does not contribute to the greenhouse effect.
• It produces huge amounts of energy from small amount of uranium.
• It produces small amount of waste.
• It is reliable.

On the other hand, nuclear power is very, very dangerous. It must be sealed up and buried for many years to allow the radioactivity to die away. Furthermore, although it is reliable, a lot of money has to be spent on safety because if it does go wrong, a nuclear accident ca be a major accident.
People are increasingly concerned about this matter. In the 1990's nuclear power was the fastest growing source of power in many parts of the world.

Hacking: Pro and Contra?

Do you know what a hacker is? Well, a hacker is a person who enjoys exploring the details of programmable systems on computers and they like to stretch the capability of the systems. And you know what, the activities they do in the computers are called ‘hacking’.

So, what’s the problem with ‘hacking and its hackers’? Well, the problem is whether ‘hacking and its hackers’ is legal or illegal? What I mean is that people in the world have many different views about hacking and the hackers. Some of them take sides, but many object.

To get back to what I was saying previously, let us see the positive points of a hacker, shall we? Although in most places breaking into computer systems is considered illegal, I believe that hackers don’t do anything illegal because they only want to know and try the systems. I dare to say that a hacker likes finding the strengths and the weaknesses of a computer system. They feel proud if they can find the weaknesses. So I don’t really see the crimes in this case. In addition, these hackers sometimes help the police catch the ‘white collar criminals’, such as bank robbers, money launderers, credit card forgers. For example, in 2000, the U.S. hackers caught some Singaporean hackers who made ‘Virus Love’ to break up the programs of the U.S. National Security system.

Nevertheless, those who object to the good points of a hacker say that hacking is a crime. The reason is that some hackers use their brilliant skills to break into banks and other vital institutions where they can get money, destroy information, and the worst thing is they can get secret information and sell it to another country. This is a treachery.

Take for example, in 1994, The U.S. government broke a conspiracy of computer hackers out of Majorca, Spain. These hackers were responsible for accessing and eliminating 190,000 telephone credit card numbers over computer bulletin boards in America and Europe. Seeing this fact, I don’t blame those who think negatively about hackers.

To put the whole thing in a nut shell, I personally think that hackers are not bad people with their brilliant skills. However, they could be bad because of money orientation to get the wealth. That’s just the point.

Birth Control

Most people agree that some form of family limitation or spacing is desirable for the good of the family and society. But individuals and groups–especially religious groups–differ sharply on the methods of birth control that they consider moral and acceptable.

Couples that practice birth control do so for various reasons. They may want to limit or space their children, or to have no children at all. Young couples often postpone having children so that both partners can work full-time. Other couples space their children so they can give each child as much attention as possible. Some women are advised by their doctors to avoid pregnancy for health reasons. In many countries with rapidly growing populations, the government encourages couples to limit the size of their families.

Even though birth control has gained in acceptance, opposition to the practice is continuous. Some people fear that birth control encourages sexual relations outside marriage or that government might impose birth control. Some religious groups oppose birth control on moral grounds.

Some religious groups teach that artificial methods of birth control are immoral because they separate the two purposes of intercourse in marriage–conjugal love and the procreation of children. Although they oppose all artificial birth control, they consider natural family planning acceptable.

Nuclear Energy : Advantage Or Disadvanrage

Nuclear energy is commonly offered as an alternative to overcome the crisis of energy. The debate of whether the use of nuclear energy is an appropriate choice has not come to an end. Some people agree with the utilization of it because of its benefits. Some others, however, disagree because of its risks to the environment.

Those who agree with the operation of nuclear reactors usually argue that nuclear energy is the only feasible choice to answer the ever – increasing energy needs. In their opinion, the other sources of energy: oil, coal, and liquid natural gas are not renewable and safe, while nuclear energy can be sustainable when produced in a safe way.

However, people who disagree with the use of nuclear energy point out that the waste of nuclear products can completely destroy the environment and human lives. A meltdown in reactor, for example, usually results in the contamination of the surroundings soil and water. Take for example, the blow up of the nuclear reactor at the Chernobyl Nuclear Power Station in Russia twenty years ago. The serious contamination imperiled people and the environment severely.

It is obvious that nuclear energy should be avoided because it really endanger the environment but what about a less polluted energy instead of nuclear energy? Is there any alternative energy to overcome the crisis of energy? 

Convenience or Care?

When something issued by someone, we say it has been consumed. We as consumers use many things, both natural and processed. We consume more of the Earth’s resources than other animals do and, as a result, we cause problems for the environment.

Like all animals, we need clean air and water, food and shelter for survival. Unlike other animals, however, we have certain “want”. These are items that are not necessary for our survival, but that we want because they make our lives easier or more enjoyable.

Environments claims that a great deal of waste is created by both the production and the consumption of these items or product. Disposable products, such a pens, take away food containers, plates, shavers and cutlery, are made using the Earth’s resources. When these products are thrown away, the resources are lost.

Another example of waste is the unnecessary packaging on many products. The material is often not recycled and used again.

Throwing thing away also increases pollution. The amount of disposable plastic litter that ends up in waterways is a serious problem. When this waste reaches the oceans, it can kill marine life.

Industrialist counter these arguments with their own point of view. They claim that consumer’s expect to be able to purchase food which is attractively presented, prepackaged to extent its life and easy to store. In a busy society, convenience is a priority. Products which make life easier, era in demand. Industrialist argue that they cater to this perceived need.

Packaging is also big business and provides jobs for many people who might otherwise be unemployed and a burden to society.

Environmentalist declare that for thousands of year, people survived perfectly well with re-usable products. However, people of the twenty-first century have become used to wing in a ‘thrown-away’ society. It is up to each one of us to dispose of waste products carefully, recycle as much as possible and to reduce the stress on our environment. Think when buying pre-packaged goods and consider whether the same products can be bought without the extra wrappings. Let’s make the best of what we have.