How many countries in the world are water scarce, how many are classified as water scarce, and how m

- Land drying up has become a common phenomenon, and the harsh natural environment is developing at an accelerated pace.

Water scarcity is a worldwide phenomenon. According to statistics, there are more than 100 countries in the world with varying degrees of water scarcity, and 28 countries in the world are classified as water scarcity countries or severe water scarcity countries. In another 30 years, there will be 40,52 water-scarce countries, and the number of water-scarce people will increase more than eightfold to 2.8 billion to 3.3 billion.

Countries and regions with a serious shortage of fresh water even affect people's basic survival. In arid countries bordering the southern Sahara Desert, tens of millions of people are dying of starvation due to water shortages and abandoned farmland, with about 200,000 people dying of starvation every year. At least 3.4 of the rural population and 1.5 of the urban population in developing countries currently lack access to safe and hygienic drinking water for many years, and 1.7 billion people do not have access to adequate drinking water.

Some countries already live by buying water. Germany buys water from Switzerland, the United States buys water from Canada, and Algeria imports water from other countries. Since 1984, the United Arab Emirates has imported 20 million cubic meters of rainwater from Japan every year.

Shrewd Japan only needs to convert more than 100 tons of water to get 1 ton of oil.

Of the world's total available water, seawater accounts for about 97 percent, and freshwater reserves account for only that. In the Earth's freshwater, deep groundwater, glaciers at the poles and high mountains, permanent snow cover and permafrost bottoms together account for more than the total amount of freshwater; However, the amount of fresh water such as lakes, rivers and shallow groundwater, which is relatively easy to develop and utilize, only accounts for about one trillion cubic meters of the world's total freshwater. In view of the fact that deep groundwater, glaciers at the poles and high mountains, and a large amount of fresh water such as permanent snow cover are still difficult to develop and utilize, many countries or regions have experienced shortage of freshwater resources and are in short supply.

Before the mid-80s, the world consumed about 31 trillion tonnes of freshwater annually. According to the data released by the United Nations in 1986, the world's four largest water users are:

USA, USSR, India and China. They account for about 50 percent of the world's population, 70 percent of the world's irrigated land, and more than 45 percent of the world's water consumption. The U.S. uses the highest amount of water per capita per day of the four countries, almost twice as much as the Soviet Union and more than five times that of China and India.

In four countries. The United States also has the highest water consumption for industry and power generation, accounting for about 54 percent of total water use, the Soviet Union for 45, China for 5, and India for only 3. In terms of irrigation water, India is the top of the four, accounting for 96 percent of the total water, China 93 percent, the Soviet Union 51 percent, and the United States only 33 percent.

However, the four largest water users all face serious problems with increasing freshwater scarcity. —The Light of Technology

Global freshwater resources are not only scarce, but also extremely unevenly distributed regionally. Nine countries, including Brazil, Russia, Canada, China, the United States, Indonesia, India, Colombia and the Congo, account for 60 percent of the world's freshwater resources. Eighty countries and territories, accounting for about 40 of the world's population, are experiencing severe water stress.

Water scarcity --- a global problem.

Global freshwater resources are not only scarce, but also extremely unevenly distributed regionally.

According to regional distribution, nine countries, including Brazil, Russia, Canada, China, the United States, Indonesia, India, Colombia and Congo, account for 60 of the world's freshwater resources, and 80 countries and regions account for about 40 of the world's total number of people with serious water shortages.

According to statistics, there are currently 20 countries in the world that are water-scarce, and among the most water-scarce countries, Malta's annual per capita water availability is only 82 cubic meters, and its water scarcity is the highest among water-scarce countries, and according to the United Nations hypothesis, Libya will rank first among water-scarce countries by 2050 (it was the fourth largest water-scarce country in 1995), with an annual per capita water availability of only 31 cubic meters. By then, Malta, whose population is not growing so fast, will become the fourth most water-scarce country, with a per capita water availability of 68 cubic metres.

（1）100÷200=1 2

3) Half of the world's countries are short of water, 1 5

The country is severely short of water, so it is proposed:

It is necessary to conserve water and protect water resources

So the answer is: 1 2

It is necessary to conserve water and protect water resources

In this day and age, it is true that 4,000 children around the world die every day due to lack of water.

The most water-scarce region in the world is Malta, and by 2050, Libya will be the top water-scarce country.

World Environment Day 2003 is celebrated on 5 June, and this year's theme is "Water – 2 Billion Lives". Statistics show that 2 billion people worldwide currently face water scarcity, 3 billion lack water sanitation, and 3 million to 4 million people die each year from water-related diseases. By 2025, the water crisis will spread to 48 countries around the world, and 3.5 billion people will face severe water scarcity.

Villagers in the Indian state of Gujarat fetch water from a huge well on June 1. At present, Gujarat is suffering from a drought that has not been seen in more than a decade, and the local population has become a problem with the draft of the local population. Some other parts of India are also suffering from drought.

Stockholm, August 13 (Xinhua) -- Some well-known international water resources experts delivered speeches at the opening ceremony of the Stockholm International Symposium on Water Resources on August 13, calling on the world to carry out cross-field cooperation to solve the increasingly serious global water shortage.

Margaret Catley Carlson, president of the Global Water Collaboration, said that in the face of increasingly scarce water resources, the world is facing three major challenges: population growth, lack of funding and outdated concepts, and only by working together including the first sector, scientific research institutions, local organizations and private enterprises can it be possible to find a solution to the problem.

Takashi Asano, a professor at the University of California in the United States, who won this year's Stockholm Water Prize, said that the current water shortage faced by mankind is largely man-made, because a large amount of precious water resources are wasted without being fully utilized, such as serious industrial water waste. He believes that industrial water consumption can be reduced by 40 to 90 percent if effective technologies are used.

According to a study published by the International Institute for Water Management, more than 100 million people around the world are currently facing severe water scarcity. Without action, the world's population with severe water scarcity will explode to 2.7 billion in 25 years.

The Stockholm International Symposium on Water Issues was attended by more than 1,000 water experts from all over the world.

Brazil, Russia, Canada.

Sixty-five of the world's freshwater resources are concentrated in 10 countries, while 80 countries, which account for 40 of the population, are experiencing severe water scarcity. If a country's annual per capita water volume is less than 2,000 cubic meters, it is a water-scarce country. There are 15 countries with a per capita water volume of less than 1,000 cubic meters, which are seriously water-deficient

Egypt, United Arab Emirates, Oman, Cape Verde, Burundi, Algeria, Yemen, Jordan, Saudi Arabia, Barbados, Singapore, Bahrain, Libya, Kuwait, Qatar, Malta (82 cubic meters per capita per year). Chinese people are not rich in water per capita, and they are one of the countries with water shortages.

Seven non-flowing countries (no rivers, water mainly imported from abroad and rainfall): Saudi Arabia, Yemen, Oman, United Arab Emirates, Kuwait, Qatar, Bahrain.

Freshwater, seawater, ice, groundwater, rainwater: there are about 138 6 10 800 million cubic meters of water on Earth. However, 1.5 billion people are geographically deficient in drinking water.

Moreover, the number of people on the planet without access to drinking water could reach as many as 2 billion by 2050. According to statistics, there are currently 20 countries in the world that are water-scarce.

Malta has the highest annual water availability per capita of 82 cubic metres among the most water-scarce countries.

In terms of population** based on UN assumptions, by 2050 Libya will be the largest water-scarce country (it was the fourth largest in 1995), with an annual per capita water availability of only 31 cubic metres.

In another 50 years, Malta, whose population is not growing so fast, will become the fourth most water-scarce country, with a per capita water availability of 68 cubic metres.

In 1995, apart from Malta, the most water-scarce countries were Qatar, Kuwait, Libya, Bahrain, Singapore, Barbados, Saudi Arabia, Jordan, Yemen, Israel, Tunisia, Algeria, Burundi, Cape Verde, Oman, the United Arab Emirates, Egypt, Kenya and Morocco.

Many experts point out that water will be more valuable than oil in the 21st century. It has been discovered that water resources are not so abundant in major oil-producing countries. The situation will not improve until 2050.

However, oil-producing countries have large amounts of cheap energy, which can lead them to make efforts in desalination.

In another 50 years, Kuwait, Qatar, Saudi Arabia, Bahrain, Oman and Algeria will each be among the most water-scarce countries.

II. III.

V. 7. The eleventh and fifteenth water-scarce countries. Only the United Arab Emirates and Morocco will no longer be the most water-scarce countries. However, the other two countries, Somalia and Rwanda, which were not previously the most water-scarce countries, will become the new water-scarce countries, the seventeenth and eighteenth largest water-scarce countries, respectively.

According to the Association "Balance and Population", less than 1,700 cubic meters of water per capita per year is the eve of water shortage, and less than 1,000 cubic meters is "chronic water shortage".