Primary school water saving article hand -copy report

Protect the earth from me (the collection of environmental protection manuals)
We have only one earth, just as we have only one pair of eyes.

cherishing resources, protecting the environment has become your responsibility and mission.

For future generations, for our ourselves, let's do it from every little thing

...

1. When cleaning home, use less chemical cleaner or pesticides.
2. Use lemon and charcoal to remove odor, and try not to use chemical air fresh agents.
3. When the utensils are not greasy, wash with warm water and use less detergent.
4. Planting more green plants can keep the room cool and reduce the fan and air conditioner.
5. Pay attention to maintenance of electrical appliances (especially air conditioners) to reduce power consumption.
6. If the temperature is not too high, use an electric fan to replace the air conditioner to save power.
7. The refrigerator is placed in a cool corner to save electricity, and it should be closed as soon as possible after opening the door.
8. The refrigerator does not store too much food, so that the power saving and reducing the risk of poisoning.
9. Use fluorescent lamps and energy -saving lights to save power. Everything may use natural light.
10. The clothes that stored one machine were opened to open the washing machine, saving water, electricity saving and time.
11. Use more shower and use a small bathtub, which can save a lot of water.
12. Use more fast cookers or high -pressure cookers to cook, which saves fuel and time, and can save nutrition.
13. Cooking more with steaming, cooking, and frying can save fuel.
14. The dining cloth in the kitchen is as hygienic, without having to use a large amount of paper towels.
15. Try to use a sealed box or bottle of food to reduce the consumption of the cleaning film.
16. Buy more products packaged and use recyclable materials, and buy less goods packaging.
17. Do not buy products similar to ivory chopsticks from rare animals.
18. Drugs and residual foods should be put in the trash can. Do not rush into the toilet.
19. Taking white toilet paper can reduce pigment pollution.
20. Use an electric shaving knife without shaving with blades to reduce waste metal resources.
21. Use latex paint to use less magnetic paint, because water -soluble paint pollution is less polluted.

A several small suggestions on green and environmental protection

Arvison: direction creative garden source: New Erxia 6 (3) Class hit: 1307 Update time: 2006-3- 30

For our only earth, I made a few suggestions for this. I hope everyone can do:
1. Try to ride a motorcycle as little as possible and ride more bicycles to reduce air pollution;
2. Multi -planting trees, cutting less trees, without disposable lunch boxes and chopsticks to avoid water and soil loss;
3. If the battery is used up, it must be thrown into the battery recycling box to prevent the battery pollution of the surrounding environment; r; r n4.经常对周围的人进行绿色环保的教育，使大家都有要保护环境的意识； rn5.把工厂排出的污水进行净化，再流向庄稼或河流，并且不乱排废气以减少Pollution;
6. Try to reduce noise pollution without loud noise;
7. Do not burn garbage around the city, pollute the air, and spread the gas gas;
8. Spitting, throwing garbage, not destroying greening, not waste of paper, do not urinate and other small things;
9. Do not mine resources without control to cause resources to exhaust;

In short It is a word: protecting the earth is to protect humanity!

What are the dangers of waste batteries?

The battery has primary batteries, secondary batteries and car batteries. Disposable batteries include buttons, dry zinc -manganese dry batteries and alkali batteries. Disposable batteries are mostly mercury. The secondary battery mainly refers to the rechargeable battery, which contains heavy metal cadmium. Auto waste batteries contain acid and heavy metal lead.
Scades that are abandoned into the soil or water in the battery abandoned in nature, and then enter the human body through crops to damage human kidneys. Under the action of microorganisms, inorganic mercury can be converted into methyl mercury and gathered in the body of the fish. After people eat this fish, methyl mercury will enter the human brain cells, which will be severely damaged by human nervous system. Those will die crazy. The famous Japanese hydrophilic disease is caused by methyl mercury.
The cadmium seepage of cadmium and water body in the battery, eventually entering the human body to damage the liver and kidneys of the human body, which can also cause bone softness and cause bone deformation. The acid and heavy metal lead in the automotive waste battery can cause soil and water pollution to the natural world, and eventually cause harm to the human body

Pollution and harm button battery buttons The battery contains mercury. When it abandoned in nature, the outer metal is corroded, and mercury will slowly overflow from the battery, enter the soil or enter the groundwater after it rains, and then enter the human body through crops into the human body. , Damage human internal organs. Under the action of microorganisms, inorganic mercury can be transformed into methyl mercury and accumulated in the body of the fish. After people eat this fish, methyl mercury will enter the human brain cells, which will be severely damaged by human nervous system. Those will die crazy. Japanese hydrophilic disease is caused by methyl mercury.

The rechargeable battery charging battery generally contains harmful heavy metal cadmium. After exudation in nature, pollute land and water flow, and finally enter the human body. Cadmium can make osteoporosis, cause skeletal deformation, bone pain, and cause serious consequences such as liver and kidney damage.

The ordinary dry batteries also contain mercury, and also contain lead and pH, which is also harmful to the environment. Therefore, in developed countries, waste batteries are listed as dangerous and toxic wastes. They must be put and recycled separately, and must not be discarded in nature. In Germany, waste batteries can be delivered to each store selling batteries, which is worthy of our reference.

20 daily environmental protection small action

Ar Li Yanyan article Source: Edit on this site: 1570 Updated: 2006-1-8

When it comes to environmental protection, many people think of the black smoke in the chimney, and the sewage emitted in the factory. In fact, environmental protection issues are closely related to each of us. Sometimes, maybe just work hard, you have made a contribution to environmental protection. The following is 20 suggestions made by environmental protection experts. Although these are "small movements", as long as everyone can start with me, starting with these 20 "small movements", our life will become more The "green".

1. Try to use private cars as little as possible

The British as an example. About a quarter of carbon dioxide emissions come from the transportation industry, and highway transportation accounts for most of them. Essence Although the most advanced technology has saved the current car than in the past, as the total amount of car increases, traffic is becoming more and more crowded, and the exhaust emissions of car tails have increased. Environmental Consulting and Director of the Organization of the "Beyond Green" Organization, Joanna Aro, said we stayed in the car for 9 days a year on average. She suggested: "If you need to drive by yourself, then slow down the speed. The speed of 50 miles per hour is 70 miles per hour or saved 25%of fuel." Of course, a better way is to use public transport.

2. Try to use renewable energy as much as possible

green energy comes from a variety of renewable resources, including wind power and hydropower. No matter where you live, if possible, you can choose any of green energy. Of course, in many areas, green energy is still expected, because the production of such energy sources is relatively lagging. The priority is that the government increases the investment in green energy technology research and generates more green energy.

3. Save water

The water consumed in the bathroom. If the faucet is opened when you brush your teeth, 9 liters of water will flow into the sewer in one minute. The groundwater level is declining, and we use more and more water. Of course, government departments can purify sewage with 'fossil fuel', but you should easily see how much this method is. Experts recommend shower with a shower. Put a plastic bottle in the toilet water tank, so that every time the toilet can save some water. In addition, remember to turn off the faucet when brushing.

4. The temperature of the air conditioner is reduced by 1 degree

According to statistics, about 30%of carbon dioxide is generated from our family. But as long as the air conditioner of each household is reduced by 1 degree, the electricity cost will be reduced by 10%in one year, and the lower room temperature will have a 1 degree without any impact on you. You can't even feel it at all. You can also pull the curtains early, use insulation strips on doors and windows, or keep room temperature to reduce expenses.

5. Circulation use

about 80%of wastes such as newspapers, glass and aluminum cans are resource that can be reused. However, people do not do enough in this regard. In the UK, more than 5 billion aluminum cans can be reused each year, and only 1.6 billion are actually reorganized.

6. Buy local organic foods

Clash food production than traditional agriculture to disrupt the environment because the former uses less energy, and the animal welfare standards used by the former are more more than the animal welfare standards used by the former. high. But you should consider transportation problems. When you buy organic foods, you should first look at it whether it is a real estate or a foreign real estate. If it is a foreign real estate, then the transportation tools will produce carbon dioxide regardless of air transport or highway transportation or railway transportation. Obvious Nearly, the less emissions.

7. Refusing to use plastic bags

plastic bags are a very serious source of pollution. People go shopping in the mall and mostly use plastic bags. White pollution is getting worse. People can use two simple methods to reduce plastic bag garbage. One is to use reused shopping bags, and the other is to bring the plastic bag you packed the items last time before going out shopping.

8. Reduce waste

A even recycling is consumed, because "tattered" that can be used in recycled use still needs to be transported by trucks, and some wastes need to be melted. Therefore, before considering the use of cycle, it is best to think about how to reduce the waste, because 80%of the packaging was thrown directly into the trash. Experts suggest that you should buy bulk goods, buy bulk fruits and vegetables, do not buy items that use multi -layer plastic paper packaging, and buy those items that are easy to degrade.

9. Plant a tree

The tree to absorb carbon dioxide and release oxygen at the same time. Each of us is discharged from 11 tons of carbon dioxide each year, but if we plant trees, we can offset two. What is gratifying is that the saplings are not expensive: each person only needs to take out dozens of dollars a year, and you can plant a few trees that are enough to absorb carbon dioxide that you discharge.

10. Turn off the excess lamp

The large part of the large part of the carbon dioxide is produced when the electric light is turned on. So, if you want to leave the room, don't forget to turn off the electric light. People can use energy -saving bulbs in daily life. They can not only extend the service life of 10 times, but also have only one -fifth of the traditional lamps.

11. Holidays at home

Average one Boeing 747 aircraft to burn 200 tons of fuel each time. The aviation industry will become the biggest source of this greenhouse gas. Flying of the aircraft also brings many disadvantages, such as the tail flow behind the fuselage pass through the infrared radiation on the surface of the earth and stops the calories in the air. If there is no aircraft tail flow, these calories will escape to space.

The price of air tickets is very attractive, but more and more people travel by plane will only make the environment worse. Only satirical is that even those who love the environment are difficult to resist the temptation of the guest plane with cheap fares to go abroad for vacation. However, it should be pointed out that the carbon dioxide released from the UK to New York from the United Kingdom is equivalent to carbon dioxide released by household cars in one year!

12. Computer can use

The people do not know. In fact, many organizations can transfer your old computer to someone who can better use it. Imagine how happy he should have received the old computer you donated in a poor area.

13. Do not easily discard garbage

In garbage made in modern households, 30%of garbage can be made into compost. If you have your own small garden, you should think of using these garbage to make compost.

14. Prepare a few rain buckets

This plastic buckets can be placed outside the house and caught the rainwater flowing from the roof. Most roofs flow on thousands of liters of rain every year. People can use them to replace tap water to wash cars or pour plants. Of course, if these rain buckets are made of waste plastic, it is even better.

15. Make full use of video meetings

The information technology is constantly improving. People do not need to gather together. Everyone stays in their own office. A complete success. This meeting method has a particularly great benefit, which is conducive to environmental protection. The United Kingdom conducted a statistics that the British Telecommunications Bureau last year due to the launch of video conference services, which reduced 47,000 tons of carbon dioxide emissions. From the UK to New York to participate in the meeting, the aircraft must make half a ton of carbon dioxide, and a car can produce an average of 32 kilograms of carbon dioxide in a meeting. However, a participant uses the video conference system to only make 0.002 kg of carbon dioxide per hour.

16. Give green gifts

The New Year's Eve, gifts become the most common ways to communicate or contact feelings. In the past, people like to give gifts, people like to choose exquisite, good -looking gifts, and rarely consider environmental protection. Now, people's awareness of environmental protection has increased, and some gift companies have launched a series of special green gifts to give people in developing countries a beehive, one acre of rain forest, a donkey, and give a storage for collecting rainwater to collect rainwater. Water cans, etc. Gift companies will send a card to the gifts to remind them that they have done a good thing for protecting the environment.

17. Both sides of the paper are

only using the United Kingdom as an example. For the paper used in the manufacturing office, more than 350 million trees in the UK are cut each year. Therefore, you'd better post "Please use the two sides of the paper" prompt on the copy.

18. Very good that your own living in the house is good

The use of insulation materials for walls and roofs can reduce heat loss by 60%. This will not only save you expenses, but also reduce fossil fuel consumed for heating.

19. The mobile phone is replaced by the old

. Mobile phones are becoming more and more common, and the frequency of elimination is getting faster and faster. Waste mobile phones have become the enemy of the environment. In fact, many manufacturers have launched mobile phones with old -fashioned new services, and you can use your old phone to change a new phone. Metals such as gold, silver, and platinum platinum in the recycled mobile phone can be extracted and used.

20. Unplug the power switch of the electrical appliances

The statistics show that the daily standby time of the TV is 17.5 hours. Other electrical appliances also include DVD players, video recorders, washing machines, dishwashers and audio, etc. If everyone remembers that they will remove their switches after using these electrical appliances every day, saving electric lights on the street.

S small poem:
Grandpa and grandma hours,
full eyes are wide fields,
The dense forests;

The car coming and going,
crowded roads.
M mother and mother, when I was young, n smelling the fragrance of lilac flowers,
Bird's singing;
, but we always smell the waste of the car,
always hearing harsh noise.
at the door of the 21st century,
Mom and dad, when I was young,
The buildings that have not been seen before. Bridge. Big factory,
. However, we also lost a lot of ...
n, leave, leave a small stream,
a clear creek.
let the fish play freely in Qingbo,
Descendants of descendants,
can only go to the museum to see,
to see what the fish is like.
Leave a high mountain,
A lush mountain.
let the elephant deer live freely in it,
do not let all green mountains become bald mountains,
to make small animals homeless.
leave a blue sky,
A clean sky.
let the birds fly freely in the air,
do not let the sun face covered with black smoke,
to make the colorful birds become crows. r. n Please leave a large river,
a mighty flowing river.
to make the mountains and rivers with joy,
do not let our tears become the last drop of water in the world.
Let's leave us in nature,
we must cherish it.
because we still have to leave it to our children,
This to our children and grandchildren,
Earthling! Intersection Intersection

The main pollutant of automobile tail gas to human health r

The main pollutants for car tail gas emissions are carbon monoxide (CO), hydrocarbon compounds (HC), nitrogen oxides (NO X),, NO X) Lead (PB) and so on.

The carbon monoxide: carbon monoxide and hemoglobin in the human red blood cells have a strong intact force. Its close combination is dozens of times stronger than oxygen. The function of the blood to all tissues to various tissues causes functional obstacles such as sensory, reactions, understanding, and memory.

The nitrogen oxides: nitrogen oxides mainly refer to NO and NO2, which are all harmful gases to the human body, especially harmful to the respiratory system. Exposure to the air in the air with a concentration of 9.4mg/m2 (5ppm) for 10 minutes, which can cause respiratory disorders. Byocarcium compounds: It is not clear to the direct harm of human health. However, after HC and NOX were irradiated with strong sunlight in the atmospheric environment, a complex optical chemical reaction was generated, and a new pollutant was generated-photochemical smoke. In December 1952, the photochemical smoke occurred in London in December 1952. The number of deaths in 4 days was about 4,000 more than the same period of 45 years. It was about three times the usual death of 45 years. During the week of the incident, those with bronchitis, coronary heart disease, tuberculosis, and heart weakness were 9.3 times, 2.4 times, 5.5 times, and 2.8 times the number of similar deaths a week before the incident.

The hundred -year problem of white garbage

in recent years, due to a large amount of waste packaging plastic films, plastic bags, and one -time non -degradable plastic tableware, the amount of use has increased Both cities have generally formed severe white pollution. It has been listed together with the exhaust gas and phosphorus detergent.
M plastic is a difficulty of dealing with domestic garbage. It can affect the absorption of water and nutrients in the soil, which causes crops to reduce yield; landfill, occupying land and can be degraded for hundreds of years. A large amount of scattered plastic can easily cause animals to die by mistake. The elk in Nanyuan in Beijing died of a fate because the plastic bag flew in nearby garbage dumps. The plastic is binding into a group, which can even block the current, causing water conservancy facilities and urban facilities to fail, causing disasters.
The production and use of foam tableware in my country is extremely large, and the number of plastic bags for food packaging, shopping and buying vegetables is also amazing. According to rough estimates, there are about 8 million tons of white garbage in my country this century. Plastic products are one of the most difficult parts of all living waste, and it has always been a worldwide problem. Generally speaking, the three methods of sanitary landfill, high temperature compost and incineration can basically make garbage treatment achieved Reduce, resource and harmless. However, the situation in my country is not optimistic. From the previous garbage collection and treatment, the order is far from forming an orderly system. For example, the garbage collection has not yet been installed in garbage bags, let alone category collection.
Although the incineration can destroy the plastic bag, building a waste incineration plant is 20 times the investment in the same scale landfill. As for the practice of artificial degradation to produce organic oils, it is unrealistic to require higher purity plastic products, and large -scale treatment is unrealistic. Therefore, hygiene landfills have become the main way to collect plastics. Beijing has built three garbage and hygiene landfills: Asowei, Beishen Tree and Stanae. There are thick anti -seepage layers on the bottom of the garbage landfill, and with the accumulation of garbage, the soil is continuously covered with soil, and then the vegetation is again created. In order to ensure that the garbage is closed in a closed space, it will not pollute the groundwater, soil and surrounding air. However, taking the stable garbage landfill as an example, a piece of land with an area of ​​300 acres is only enough to use a Xuanwu District in Beijing for 14 years.
The method of resisting the use of non -degradable plastic was recently responded to some shopping malls. They tried to sell degradable garbage bags, but there were few buyers because the price of this garbage bag was above 1 yuan and could not withstand large. the weight of. Wankelong advocates the use of cloth bags, and the effect is not ideal.
This is the best way to solve the problem. Experts believe that on the one hand, it should deal with existing garbage in time, and on the other hand, it should be replaced by plastic with product degradation and degradation products. In November 1998, a disposable tableware made of straw was first put on the fast food table at the Beijing Parkson Shopping Center. This kind of tableware is not only safe and hygienic, but also uses the soil after one -time use. It is fertilizer in water. It can become a fish feed in water. It is abandoned by the roadside. After a few days, it goes with the wind. At the "Green Disposable Tableware Exchange Conference" on December 13, 1998, more than 100 companies demonstrated their tableware made of rice shells, pulp, starch, etc. for raw materials. A kind of biological degradation of a one -time fast -food box has been tested by more than 30 researchers in the Beijing Institute of more than 30 research institutes in Beijing. The test confirmed that the lunch box was exposed to nature after use, and all became water and carbon dioxide within 40 days. This kind of lunch box uses starch (corn, cassava starch) as the raw material, and adds a year -old plant fiber powder and biological waterproof glue to the mold to heat the foaming in the mold. The alternative products of various freshmen are at the beginning, but it has not yet reached the level of large -scale production and promotion.
It; the people's awareness of environmental protection is still relatively backward, which is actually an important factor that hinders white pollution control. The first step in treating white garbage is garbage distribution. This is expected to be carried out only after most people's conscious environmental awareness is established. Therefore, the most important point of treating white pollution is to raise everyone's environmental consciousness. Because white garbage takes more than a century before it can be degraded naturally in nature, solving its pollution problem can really be called a century -old problem.

The scientific Times (1999.01.18)

The culprit of dyeing atmosphere

The air pollution according to the World Health Organization (WHO), which refers to outdoor outdoor outdoor There are artificial pollution substances in the atmosphere, mainly granular substances, sulfur oxides, nitrogen oxides, carbon monoxide, hydrocarbon compounds, etc. The granules are solids and liquid particles floating in the atmosphere. The diameter of the particles can be less than 0.1 microns, and the maximum can exceed 500 microns. Larger particles can leave the atmosphere due to the settlement of gravity, and small granules can be drifted in the air for a long time, and can even surround the global movement with the air flow.
1. Granules
The granules in the atmosphere can scatter and absorb the sun, reduce visibility, affect traffic, increase car and aviation accidents. Granules can increase cloud mist and affect the climate. Many cities in my country have increased, and they are also one of the consequences of air pollution. When the particles are humid, the particles will also corrode metal, defile buildings, sculptures, paint surfaces and clothing, and granular substances will also damage electronic equipment because it can chemically corrode and mechanical effects on the electric connection point.
The harm of granules to plants is also obvious. The dust landing on the leaves can block the pores on the leaves, inhibit the breathing effect of the blades, at the same time hinder the optical synthesis, inhibit plant growth, and endanger its breeding.
The greatest harm produced by particles is damaging human health. Among them, the diameter of about 10 microns is the most serious. They can directly penetrate the lungs, deposit in the alveoli, can enter the blood, and go to all parts of the body. Those with a diameter of more than 10 microns can almost be blocked by nose hair and respiratory mucus, and will not enter the alveoli. Many studies have proven that the higher the concentration of the urban particles, the higher the mortality and incidence. Among them, respiratory diseases, especially chronic diseases such as bronchitis and emphysema, are the most closely related to the concentration of granules.
2. The oxide of the sulfur
The oxide of the sulfur refers to sulfur dioxide and sulfur dioxide. Most of the sulfur oxide in the atmosphere comes from the combustion of coal and oil, and the rest is corrupt from organic matter in nature. The harm of sulfur oxides to the human body is mainly to stimulate human respiratory systems. After inhalation, first stimulate the vagus nerve at the surface of the surface of the upper respiratory tract mucosa, causing bronchial reflex contraction and spasm, leading to increased cough and exhalation resistance. Then the resistance of the respiratory tract resistance Weakened force, induced chronic respiratory diseases, and even cause pulmonary edema and pulmonary heart disease. If there are granular substances in the atmosphere, the granules are adsorbed by high concentrations of sulfur oxides and can enter the depth of the lungs. Therefore, the degree of harm can be increased by 3-4 times when sulfur oxides and granules are existing in the atmosphere.
3. Nitrogen oxides
The nitrogen oxides that cause air pollution are mainly nitric oxide and nitric oxide. These nitrogen oxides are mainly the high temperature produced when the fuel is burned in the air, which reacts with the nitrogen in the air with oxygen.
The nitric oxide is colorless and odorless gas. The concentration that appears in the atmosphere will not have harmful effects on the human body, but when it transforms into nitric oxide Essence When its content is more than 100ppm, it can cause people and animals for a few minutes. Nitrogen dioxide with 5 ppm inhalation can harm the respiratory system in a few minutes. Nitrogen oxides are more harmful due to the formation of optical smoke and acid rain.
4. Carbon monoxide
. Carbon monoxide is one of the largest air pollutants with the largest emissions. It is mainly the product of incomplete combustion in the air. Carbon monoxide is colorless, odorless, and odorless asphyxasting gas. It is not easy for people to notice its existence, so it is more dangerous.
The toxic effect of carbon monoxide on humans and animals is due to its binding force with hemoglobin in the blood more than 200-300 times greater than the combination of oxygen and hemoglobin. When there is a concentration of carbon monoxide in the atmosphere, carbon monoxide is the first to combine with hemoglobin into carbon oxygenocoprotein. These hemoglobin can no longer be combined with oxygen, thereby reducing the ability of hemoglobin to transport oxygen and reducing the oxygen supply to cells in the body, resulting in hypoxia in the body. Essence In addition, carbon monoxide also slows down the processing process of oxygen -red protein, so even if there are several times the oxygen required by the body in the blood, hypoxia is not released. Carbon monoxide will have a slight paralysis on the nerves that dominate muscle exercise. Therefore, although the patient understands in the early stage of poisoning, the hands and feet are not listened to it. The danger is greater.
If in winter, if the doors and windows are closed tightly, use coal stoves in the room to warm or bathe with gas water heaters, which is prone to carbon monoxide poisoning accidents. In case carbon monoxide poisoning occurs, the poisoner should be carried to the fresh place where the air is first.

5. Condride compounds
The hydrocarbons refer to compounds containing only carbon and hydrogen. Part of the hydrocarbons in the atmosphere comes from rotten by organic matter. The polluting atmospheric hydrocarbon compounds are mainly caused by extensive application of petroleum and natural gas as fuel and industrial raw materials. In the city, more than half of the hydrocarbons are discharged by the vehicle. The second is the production of petrochemical production and petroleum painting, coatings, inks, etc., and evaporated by the manufacturing and use of hydrocarbons.

The facing "water crisis"
Water is the most active in the ecological environment system. The most widely influence. It is not only the source of life, but also an important resource that is irreplaceable in industrial and agricultural production. Before the "3.22" World Water Day, foreign media worried about reporting "water shortage". "Water War". Many domestic news media have also set their sights on the "water crisis" they face.
This is a large water shortage country, and the water resources are not rich, but the waste of water is amazing, and the supply and demand problems are very prominent. This conclusion is not alarmist. The total water resources in my country are 281 million cubic meters, ranking 6th in the world after Brazil, former Soviet Union, Canada, the United States and Indonesia. Although the absolute quantity is rich, due to the large population, the per capita water resources share is greatly lower than the world average, ranking 88th in the world. And with the rapid growth of the population, per capita water resources are decreasing each year. From the perspective of freshwater resources, the world's per capita share is 129OO cubic meters, only 2695 cubic meters of my country, and less than a quarter of the world's per capita share.

This Water shortage troubles the world

If through the prediction of the UN Environmental Planning Department, the problem of water will be the same as the energy of the 1970s. Natural resource issues. The analysis of the United Nations pointed out that the proportion of freshwater on the earth only accounts for about 2.8%, more than 99%of which are hidden in the ice and snow or under the ground with the north and south poles. The part is contained in rivers and lakes that are extremely distributed on the earth. According to statistics, in the past 50 years, the use of freshwater in the world has increased by nearly 4 times, as high as 4130 cubic kilometers each year, and agricultural water has accounted for 60 % of all water. In the past 20 years, the irrigation area has increased by more than one -third. Asian countries have grown the fastest. It is predicted that the water consumption in Asia will rise from half of the world's current water in the next century to nearly two -thirds.
The deterioration of water pollution in many countries has further intensified water tensions. The monitoring of water resources by relevant UN agencies shows that one -tenth of rivers in the world have been contaminated to varying degrees. World -worldwide water shortage has begun to bring serious consequences: some areas of global areas have restricted the development of all aspects due to insufficient fresh water supply.
The water resources in our country: First, the national precipitation is extremely unbalanced in the distribution of space and time. Some regions have per capita water resources equivalent to the most drought countries in the world, but seasonal droughts often occur in the south of the water, which makes the main crop rice and some economic crops that rely on water irrigation. Low, 36.3 billion tons of sewage waters nationwide, 80 % of which have not been treated, which has severely polluted rivers and lakes and groundwater, and water quality dehydration is getting worse. The waste of water is quite common. The repetitive use of industrial water in the country is only 45%. The water consumption of 10,000 yuan in industrial output value is much higher than that of industrial friendly countries. The effective utilization rate of agricultural irrigation is generally only 25%to 40%. Therefore, the problem of water is very severe in my country.
The urban living water and industrial and agricultural living water are required to have stable and reliable water supply. Only by reasonable development and utilization and protecting water resources, preventing and controlling water damage, and giving full play to the comprehensive benefits of water resources, can we meet the needs of national economic development and the needs of people's lives. A survey prediction shows that the total water consumption in my country will approach the total water resources, and the "crisis" of water resources is not far. The severe water environment situation requires further attention to the development and utilization of water. Legislative work in protecting and water damage prevention, improving people's awareness of water saving, water protection, and "water affected consciousness" to ensure more effective use of water resources and achieve sustainable development strategies.

The crisis of "World Water Day" and water

The 47th UN General Assembly decided that from 1993, March 22 each year is "World Water Day". The Ministry of Construction of my country also decided that the second week of June each year as a national city conservation water publicity week, the purpose is to conscientiously implement the "People's Republic of China Water

Method of water -saving:

The water saving water, profit in contemporary, merit in Qianqiu, this is to discuss the students to develop some water -saving small methods together:
. Tao rice water washing vegetables , Wash with water, not only save water, but also effectively remove the residual pesticides on the vegetables;
. Laundry washing drag, broom flooring, and then rushing to the toilet. The second laundry water, doors and windows, furniture, shoe washing socks, etc. of the laundry water washed;
three, big, rinse the toilet after urination, try not to open the large water pipe rinse, and make full use of the "dirty water" used;
. Sprinkle the indoor and outdoor grounds to cool down in summer. Try not to use water as much as possible, and use laundry water after laundry;
. When the bicycle and home cars are cleaned, do not rinse with water, wipe it with a wet cloth, too dirty, too dirty In the place, it is also appropriate to rinse the remaining water after laundry;
. The toilet: If you use water -saving equipment, you can save water at 415kg each time; It is advisable to use rice water, tea, laundry water, etc.;
8. Family wash hand towels, small objects, and fruits. It is advisable to use pots to flush water without boiling water. Rinse water;
. Washing floor: Wipe with a mop, which can be rinsed with a faucet of 200kg per household. The leakage phenomenon can be used to use the rubber cover with penicillin bottle to cut a cushion that is the same as the original, which can ensure that the water is not leaking;
eleven, adjust the floating ball in the water tank in the bathroom for 2 cm, rinse each time, rinse each time It can save nearly 3kg of water; calculate the family four times a day, 4380kg a year.
. Twelve, washing vegetables: Wash one basin and one basin, do not rush on the faucet, one meal can save 50kg;
. Shower: If you turn off the faucet to wipe the soap, take a bath once, you can take a bath. Sword saving 60kg;
. Washing clothes: If you wash with a laundry basin, clean your clothes, you can save 200kg of water than driving the faucet at each time; If you wash it again with the barrel, if you wash it twice separately, you will consume 120kg more;
. The car washing: Rinse it with water with water, at least 400kg of water;
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