Friday, October 31, 2008

The environment

I think that people preserve the earth. And a luxurious life needs to be reexamined. The growth of this area is amazing. People get affluent life. But on the other side, the natural environment is rapidly disappearing. For example, an oil spill, a landfill, and a pollutant. What do you think about gloval warming ? All the countries of the world where is rising temperature. Because, depletion of the ozone layer has gotten worse. Especially, ozone layer of over the South Pole is confirmed a remarkable decrease on September to October. This phenomenon is called an ozone hole. If ozone layer is breaked, ultraviolet rays increases. Then people will be suffering from skin cancer, a cataract and more. And harvests of crops will decrease.

The ozone layer is destroyed by chlorofluorocarbon(CFC). CFC was used of refrigerators, detergents and forming agents. CFC is stable material of scientific. So it was not resolve a chemical compound into its constituent, if it was released to the atmosphere. When it reaches the stratosphere, CFC absorbs to resolve ultraviolet rays. And it releases chlorine. It is a factor of depletion of the ozone layer. Moreover, it brings about a chain reaction. A molecule of chlorine breaks twenty to thirty thousand molecules of CFC.

A protocol of Montreal In 1987, it was decided that stop to make CFC. People became to think about the earth a little. But CFC that we have already released, reach the stratosphere for a long time. So CFC dose not eliminate if we stop to make CFC. And ozone layer can never again be former.

Some Japanese say that Eco is ego. But it is not even funny. Now, what we need is not to give up. People have to put our environmental idea into practice. Actually, people became active that decrease CO2, collect thing of releasing CFC, and plant trees. These are important things. People think about the earth one by one.

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