Call for Essays on Environmental Protection. Junior high school, 700 words

Environmental Essay – Conserve limited resources.

Everyone lives in this world and should know it. In the past, the earth was green, the sky and the sea were blue, the birds flew freely in the sky, the fish swam happily in the water, other animals ran happily on the land, and people helped each other The whole earth presented a harmonious scene. Mother Earth smiled sweetly.

But now, the earth has changed. Green is decreasing a lot, while yellow is increasing, what's wrong with the earth? And that's not just the massive felling of trees, which not only left the birds without a home to live on, but also caused widespread collapses, floods, etc.

Without trees, our planet would be missing a balance frame.

Moreover, cans are now sold in various stores, and cans are a kind of pollution. The road and the school have become their "home". There are also jars made of aluminum, which also has many hazards to the human body.

Moreover, making such a cup of Coke requires a lot of process, which wastes a lot of resources.

Old batteries are more harmful. Once mixed with household garbage, under certain conditions, a series of chemical reactions will be produced, releasing toxins, affecting people's bodies and destroying the ecological environment.

Now that people's science and technology are developed, in order to improve efficiency, factories have actually regarded the river as a good place to discharge sewage, making the river dirty and smelly, and what is even more hateful is that our mother river, the Yellow River, has also been polluted, and the Yangtze River is even more serious, and garbage is everywhere, so that passers-by cover their mouths and walk quickly.

Therefore, we have to prove it with actual labor. For example, saving water. Such as:

Turn off the faucet in time after running out of water; Use the water from washing vegetables to water flowers, mop shabu, and flush toilets. Don't think a few drops from the faucet are nothing. A single drop of water per second from a faucet is 36 cubic meters of water in vain in a year.

If a household saves one side of water per month, how much water will the whole country save in a month?

Thankfully, people have realized how polluted the earth is, and everyone has taken action to protect our homeland. But I also hope that those who have not moved will take action, bend down, pick up a piece of paper and a piece of fruit peel on the ground, and make our tomorrow better and more beautiful!

I believe that with the efforts of all of us, it is not impossible to return the earth to the way it was hundreds of years ago!

Although the environment of today's highly developed earth looks very optimistic, there are very serious hidden dangers, which are all man-made: large-scale felling of trees, the establishment of chemical plants, and the indiscriminate discharge of harmful liquids. "The world emits more than 600 million tons of ...... of gases every year; It is estimated that by mid-next century, one-third of the Earth's surface will be at risk of desertification, with 6 square kilometres of land desertified each year, threatening more than 60 ......"How do you feel about seeing these staggering numbers, human beings?

From the emergence of forest apes 23 million to 18 million years ago to the current era of highly developed human civilization, nature has "responded" to everyone's never-ending demands, which has further nurtured human greed.

To give an example: Mulan Creek in my country, which was originally a crystal clear river in the early 50s, is now a polluted river with extinct fish and shrimp, adding another scar to our mother earth. Isn't this a heavy wake-up call for mankind?

Therefore, I solemnly advise those who are not yet enlightened:

First, if humans want to conquer the terrible nature, they must respect it. We should be cautious about transforming nature, and we must be bold and bold in practice and improvement, so that we can control nature and develop our own interests in harmony with nature, and we must not repeat the mistake of "polluting first, then rectifying" in the developed countries of the West.

Second, we need to start with me and choose a lifestyle that is conducive to protecting the environment. Be kind to our homeland, be kind to the earth, and create a better living environment.

1. Save resources and reduce pollution.

1) Take pride in saving water and turn off the faucet at any time to prevent dripping.

2) Use detergents with caution and use soap as much as possible to reduce the pollution of water by chemicals in detergents.

2. Green consumption and environmental protection choice.

1) Use unleaded gasoline, cadmium-free lead batteries, and phosphorus-free detergents to reduce water and air pollution.

2) Purchase low-pressure household refrigeration appliances and non-sulfur mousse to reduce pollution to the ozone layer.

3. Reuse and reuse.

Use as few disposables as possible and more durable goods. For example, do not use disposable plastics and lunch boxes to reduce white pollution; Do not use disposable chopsticks; Bring your own shopping bag or carrycot.

4. Classification** recycling.

Do not litter waste batteries, waste plastics and other garbage and waste; Waste will be sorted and put into waste, turning waste into treasure, recycling resources, and benefiting mankind.

5. Protect nature and all things coexist.

Do not hunt or use rare animals and protected animals, and care for and protect wild animals and plants; Afforestation, take care of every inch of green space, every flower, every tree around us.

6. Pay attention to hygiene and protect the environment.

No spitting, no littering, no smoking in public places, no making noise.

As a primary school student in the new era, I advocate for my classmates to raise awareness of environmental protection, and I also recommend that uncles and aunts join us to contribute to the protection of the environment and the benefit of future generations. Because: to protect the environment, there is no time to delay!

Let "green" be integrated into life.

Green represents vitality and symbolizes vitality. This kind of "green" is exactly what nature, a nation and even an individual should have.

For the green in nature, it is easy to think of some green vegetation such as forests and grasslands. However, nowadays, the destruction of vegetation is serious, and the harm caused by desertification and mudslides to human beings occurs from time to time. As in the recent mudslide in the Philippines, thousands of people were buried alive in an instant.

Doesn't this cause us to take it seriously, and do we have to start reflecting on it when disaster strikes us? The situation in China today is worrying. Despite the fact that a great deal of work has been done, the destruction of vegetation continues.

At this time, I was reminded of Tang Seng in "Journey to the West", when Sun Wukong threw the "Moonlight Treasure Box" aside and wanted to duel with Sister Guanyin, Tang Seng hurriedly told Sun Wukong not to throw it around, so as not to hit the flowers and plants ......You see, when the situation was critical and a fight was about to take place, Tang Seng still did not forget that his apprentices had to protect the flowers and plants. Doesn't this cause reflection on the part of those who destroy vegetation?

Individuals also need "green", and this "green" represents the vitality that a person should have. People with energy can often do things that others can't. This energy will eventually lead him to success.

Just like the world champion Liu Xiang in the 110m hurdles, when he faced Armstrong, who had won many world championships, he did not get down, but on the contrary, it can be seen from his relaxed face before the race that Liu Xiang was full of vitality and fighting spirit at that time. Of course, Liu Xiang eventually succeeded in ......

Individuals need "green", and the country also needs "green", and this "green" represents the vitality of a country. It would be sad if the country did not have this "green". Looking back at China's modern history, it is that China lacks this "green" history, so that it has suffered from the oppression and exploitation of imperialism.

For a long time, China did not seem to show the "green" it deserved. As a result, China has been given the signboard of "the sick man of East Asia". It can be seen how important this kind of "green" is for a country's survival and development.

The brilliance of nature needs to be embellished with green, and the survival and development of the country needs to be promoted by "green". Personal success also needs to be "green" to be fulfilled.

We should not continue to destroy vegetation, but provide a green environment close to nature for the Olympic Games.

We should no longer have the humiliation of the "sick man of East Asia", but should present to the world a "green" China full of vitality.

Let's work together to integrate green into our lives.

Give me back the blue sky.

Ancient poets wrote about the sky, "The river and the sky are one color without fiber dust"; Modern writers write about the sky, "the blue sky, spotless, crystal clear".

It's a pity that we rarely see such a beautiful "sky" now. Especially in cities or industrial areas, it is really unpleasant to be surrounded by smoke and haze all day long. In the face of all this, you may can't help but sigh:

Fresh, refreshing, clear atmosphere, have you been there? Hurry up and cure the "disease" of the atmosphere, and give me back the blue sky and red sun!

We do have a lot to do, the most important of which is to find ways to reduce the amount of pollutants emitted.

Soot is mainly produced by the incomplete combustion of coal and oil. Improving the combustion method so that the fuel is fully burned can greatly reduce the amount of soot generated.

Try not to burn loose coal, develop coal gasification and liquefaction, and wash and process fuels containing a lot of ash and sulfur for reuse. The pollutants that have been generated should be processed through absorption, catalysis, adsorption, condensation and other methods, turning harm into benefit, and reuse.

Even if pollutants run into the atmosphere, try to mitigate their harm. We should step up the greening of the city, plant more flowers and trees, open up more parks, and provide trees for Shan to drive away the stones.

From the perspective of curbing global warming, we should use natural gas as fuel as much as possible to control the growth of greenhouse gases, especially carbon dioxide gas. If the small chimneys of each household can be eliminated, and the central heating or the combined production of electricity and heat supply can be implemented, fuel can be saved and carbon dioxide emissions can be reduced.

If the amount of aluminum reused in countries around the world were doubled on the current basis, 1 million tons of pollutants could be reduced into the atmosphere in one year.

There are more than 400 million cars in the world, which emit about 100 million tons of carbon dioxide every year. In order to reduce greenhouse gas emissions from automobiles, in addition to limiting the number of cars, saving fuel consumption, and installing purification devices, it is also necessary to try relatively clean fuels such as methanol and ethanol, and develop public transportation and electric vehicles.

Finally, the development and utilization of clean and clean new energy is the most fundamental way to reduce air pollution. For example, nuclear energy, solar energy, wind energy, biomass energy, geothermal energy and other energy sources are clean and clean, with abundant reserves and great prospects for development.

The depletion of the ozone layer is a global problem. The United Nations Environment Conference decided that the production of the ozone-depleting "main culprit" chlorofluorocarbons (CFCs) would be phased out by the end of 1995. However, the life span of HCFCs is 50-100 years, and only a small part of the 15 million tons of HCFCs that have been depleted into the atmosphere have been depleted to the ozone layer, and most of the rest are still in action, and the ozone layer will continue to be destroyed and reach a peak in the first decade of the next century.

As for the complete return to normal natural levels, it will take at least a century!

Air pollution is caused by human activities, and in the end, it is up to humans to solve it. It's just that time waits for no one, and we'd better act resolutely from now on, take measures, clean up the atmosphere, and return the blue sky!