Rush rush rush! About secondary school students water conservation (reward points 50 ah!)

The supply and demand situation of the world's water resources is not optimistic. In May 1996, at the Third Session of the Committee on Natural Resources in New York, the United Nations Department of Development Support and Management Services (DDSMS) analyzed the water resources of 153 countries (accounting for 98.93% of the world's population) using a comprehensive analysis of the per capita possession of water resources, per capita Gross National Economic Output (GNEO), and per capita water withdrawals (use) and other indicators and categorized the world into four groups. Countries in the world are categorized into four groups, i.e., water-rich countries (including more than 100 countries such as Djibouti), water-vulnerable countries (including 17 countries such as the United States of America), water-scarce countries (including 17 countries such as Morocco), and water-poor countries (including 19 countries such as Algeria) (Pan Lizhong, 1996). According to this evaluation method, 53 countries and regions in the world (accounting for 60% of the global land area) are currently suffering from water scarcity. These include: Spain, southern Italy, the Dalmatian coast, Greece, Turkey, the Arab States (except Syria), most of Iran, Pakistan, western India, Japan, North Korea, Australia, the western and southern parts of New Zealand, the coasts of north-west and south-west Africa, Panama, northern Mexico, central Chile and south-western United States, and China. Current trends and projections already indicate that by the beginning of the 21st century, the water crisis will be a widespread problem in almost all arid and semi-arid countries, and projections published by the United Nations in the Integrated Assessment of the World's Water Resources (IAWR) show that by 2025, the world's population will have increased to 8.3 billion people, and that the number of people living in water-stressed and often water-scarce countries will have risen from 300 million in 1990 to 3 billion, the latter being 10 times the former, and the size of cities in third world countries will also increase dramatically. Unless freshwater resources are utilized more efficiently, pollution of rivers and lakes is controlled, and purified water is utilized more effectively, one-third of the world's population will suffer from medium-high to high levels of water stress.

Professor Tibaijuka, Administrator of the United Nations Living Environment and Human Settlements Program (UN-Habitat), said at a news seminar on water policy in Africa held in Dar es Salaam, Tanzania, a few days ago, that UN-Habitat is y concerned about the deteriorating water situation of the population in the African region. Today, he said, more than half of the continent's cities face water shortages, and many poor urban dwellers are forced to pay street vendors exorbitant prices for water, with each liter of water often costing 5-20 times more than the price of urban water in developed countries. For example, residents living in the slums of Kenya's capital, Nairobi, earn less than a dollar a day while paying five times as much for the same quality of water as they would in the United States.

Professor Tibaijuka said, Africa is the world's most strained water supply and public **** sanitation facilities are the most backward region, today more than one-third (about 300 million) of the African population lack of water and public **** sanitation facilities. If effective measures are not taken, by 2020, 400 million African residents will lack access to safe water and 600 million will be without access to sanitation.

Korea, like its fellow developing countries, is still in the early stages of water conservation, and the main practices it is currently adopting are:

(1) reusing properly treated wastewater as non-potable feed water;

(2) reducing leaks in systems and rooms, and reducing unaccounted-for water;

(3) promoting water-saving designs through demonstrations by non-governmental organizations. promote water-saving designs.

Additionally, its strategy for future water conservation development is to

(i) evaluate the potential for water reuse for non-potable uses;

(ii) encourage industrial water conservation efforts;

(iii) change pricing policies in favor of water conservation;

(iv) establish a line of water-saving equipment;

(v) promote social tools of information and education aimed at the public;

(vi) promote the use of water-saving equipment in the community;

(vii) promote the use of water-saving equipment in the community. information and education;

(vi) developing a benefit-cost evaluation methodology that includes both qualitative and quantitative factors for some potential water conservation tools.

People's Daily News, November 12, according to the Cabinet Office of Japan on the 10th released a "public opinion survey on water" report shows that two-thirds of the respondents answered in their daily lives to do "save water"; three-quarters of the people think that in order to effectively utilize water resources, they have to save water. Three-fourths of the respondents believe that they can use rainwater and treated recycled water for effective utilization of water resources.

In this report, 64.9% of the respondents answered that they "pay a lot of attention to water conservation" or "have some awareness of water conservation" in their daily lives. This is a slight increase from the 64.1% surveyed two years ago, but a large increase from the survey conducted 15 years ago (51.2%). With regard to the use of rainwater and miscellaneous water, 75% of the respondents were positively in favor of reuse or thought that it could be used if it was used for flushing toilets. However, only 35.5 percent of those asked if they would accept spending money on equipment to treat rainwater and miscellaneous water said they would.

In terms of reasons for water conservation, the majority (78.1%) of respondents said "water is a limited resource that should be cherished," followed by "using a lot of water will increase household expenses" (43.1%), and "using a lot of water will pollute rivers. "Large amounts of water will pollute rivers" (22.8%). The number of people with these thoughts has increased significantly compared with seven years ago when the survey was conducted.

It is reported that the survey was conducted in July and August of this year with 3,000 male and female citizens over 20 years old nationwide. The questionnaire recovery rate was 70.4 percent. (Chen Jianjun)

(People's Daily Japan / Contributed)