1

Dear editor,

　　Environmental problems are becoming more and more serious all over the world.

　　With the development of industry and agriculture, cars make great noises and give off poisonous gas. Because of population expansion and overdevelopment, resources has become less and less. Trees on the hills have been cut down, and waste water is being poured continuously into rivers. The whole ecological balance of the earth is changing. Massive destruction of environment has brought about negative effects and even poses a great threat to man’s existence.

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　　We must face the situation that exists and take actions to solve our environmental problems. We hope that all these measures will be effective and bring back a healthful environment.

　　Yours truly

2
There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.

　　To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.

　　In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.

3

Today's society is a highly developed technological society. However, the shortcomings in the development process are obvious, such as: carbon dioxide, and environmental pollution. But the most serious should be the carbon dioxide problem.

Now the problem of global warming because of excess emissions of greenhouse gases. Excessive amount of carbon dioxide emissions, creating a diversified economy and La Nina phenomena lag disorder. Two levels of glaciers melting, polar animals lose their chance of survival at the same time, will lead to rising sea levels, many coastal cities into the water did not result in a few years later. Therefore, we must take the necessary measures to reduce the environmental impact of carbon dioxide.

For example: tree-planting activities, reduce fossil fuel use, we can from our own, to promote low-carbon living.