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Underground Water: A Big Cause of land around the world to sink

Underground Water: A Big Cause of land around the world to sink.

Save Water To Save the World

Big Cause of world to Sink
Big Cause of world to Sink

Do you know what is the biggest source of drinking water in our country?

In response, do not take the name of river, lake or pond. Because the correct answer is that 85% of drinking water in India is extracted from the ground. This is the highest in the world. We are pulling water out of the ground very fast. We may have to face its terrible consequences.

Only the water level does not go below it. Extraction of excess water from the ground causes many more damage.

Today the land is sinking from Miami of America to Jakarta in Indonesia. The result is that water is entering cities.

Jakarta, the capital of Indonesia. This city is close to the sea. Due to its land subsidence, sea water often enters the city. When the tide comes, many settlements in Jakarta begin to sink. Indonesia has built walls along the sea shore to avoid this. But a permanent solution to this problem could not be found. As of today, the city of Jakarta is sinking at a speed of 17 centimeters every year.

Expert Michelle Sneed of the American Geological Survey says that people see this by connecting to Global Warming. The whole world is worried about this. But, that is wrong. Actually, the sea water is increasing. But in many parts of the world, land is also sinking.

Both have different problems. Yes, the places where these two challenges have arisen together, they are getting more difficult. Jakarta is one such place, which is facing the double challenge of rising sea water and land subsidence.

Like Jakarta, Mexico City, Mexico's capital, and the San Joachine area of ​​the United States, have been steadily and rapidly sinking.

Jakarta is Sinking so fast
Jakarta is Sinking so fast

Extracting of Ground water is crime

But the good thing is that these incidents of land subsidence are very local. Geologist Gilles Erkens of Utrecht University in the Netherland says that increasing water in the sea is a challenge for the whole world. At the same time, the problem of land subsidence is local. Which many countries are dealing with in their own way.

Countries like Shanghai and Tokyo have overcome this problem more or less. The work of Extracting water from the land in these cities is being strictly monitored. These cities have made it a crime to remove ground water by making strict laws. Also, new ways to meet the city's water needs have also been discovered.

Experts say that some of the ups and downs in the land have been going on for thousands of years. Like the land has been subsiding in Greenland and Canada since the last ice age. In addition to this, land is also rising up in many places in the Atlantic Ocean. But this speed is one or two millimeters per year. The effect of which is not known to anyone.

In contrast, the Hampton Road area of ​​Mexico City, San Joachine and Virginia has been continuously submerged due to the wild exploitation of water from the land.

Simone Fiashi of Padua University in Italy says that if you remove something from the ground, then that place remains empty inside. Now if you drain the water, the soil inside the ground shrinks. Rain water leaks into the ground. But the faster the water is extracted, the faster the ground water is not being absorbed again. The result is that the land starts sinking.

Extracting Underground Water
Extracting Underground Water

Water of the land will be lost in the next 50 years

Today, India meets 85% of its drinking water needs with groundwater. In Europe, 75 percent of drinking water is extracted from the ground.

At the same time, groundwater is used extensively for irrigation in America. In 2010, about 50 billion gallons of water was being extracted from the ground daily for irrigation of crops in America.

Now, the faster the water is being extracted, the faster it is being supplied to the land. This is the reason why land in San Joachine, California is sinking very fast.

Similar is the situation in Mexico City. Water is extracted from the ground on a large scale to provide water to the approximately twenty five million population of the city.  41 percent of this is wasted during supply.

With the speed at which water is being extracted in Mexico City, the water of the land will be lost in the next 50 years. With the rapid exploitation of ground water, some parts of Mexico City are sinking at the rate of 30 centimeters or one foot every year.

Water Decreasing Chart upto 1995

Mexico City is caught in a vicious cycle due to land subsidence. Old pipelines laid within the ground are crumbling due to land subsidence. A lot of water is wasted by this. So more water is being extracted from the ground. Due to this, the speed of land sinking has become faster. Many old buildings of the city are in danger.

Expert Gilles Erkens of the Netherlands says that no data exists of how many such incidents are happening around the world. But scientists have definitely noticed that where the speed of extracting water from the land has decreased, the rate of land subsidence has also slowed down.

The city of Tokyo is its biggest example. In 1968, the land was sinking in Tokyo at the rate of 24 centimeters every year. At that time, about 33 crore gallons of water was being extracted from the ground daily. Tokyo enacted several stringent laws to control the situation. By the year 2000, the rate of land subsidence in Tokyo had dropped to 0.4 centimeters per year.

But this formula cannot be repeated everywhere. After all, in areas where water is being extracted from the land, they should also have an option.

On this front, the San Joachine area of ​​America has shown the way. Here, due to the tremendous exploitation of water, every year the ground was sinking at a speed of two feet. Then the planners here decided that the water that wastes after use should be cleaned and stored again. May it be used again. So that the process of removing water from the ground is reduced.

Work on this plan has started. During this time, the canals built in San Joachine have started breaking due to land subsidence. Bridges are sinking. That is, this area of ​​California needs to work more quickly to save itself from subsidence.

Land View after 50 Years
Land View after 50 Years

Very Difficult to fill empty space due to extracted underground water 

Some similar formula was implemented by Shanghai. He brought water from elsewhere to make the lakes and ponds around Shanghai boil. The result is that the exploitation of water from the ground is reduced. The rate of subsidence of the city also slowed down.

Now Hampton Roads area of ​​Virginia province of America is also trying to follow this formula. Here too ground water is being exploited on a large scale. It is only because of this that the land in Hampton Roads area is sinking at the rate of about 3 millimeters every year. The land is equal. Therefore even such a small amount of money makes a lot of difference. Now the administration here is also working on a plan to clear the dirty water and re-enter the Potomac River. So that the required water can be extracted from the ground at least.

However, American Geological Survey Scientist David Nelms warns that it is not possible to implement these solutions everywhere.

American Geological Survey Scientist David Nelms says that "There is a layer of soil and sand inside the ground. When you drain the water, both layers shrink. If you try and bring the water back into the ground, then the sand layer will come back in its form. But the shrinking layer of soil will not be the same again.  Because it has shrunk permanently."

Earth Layer after extracting ground water

However, David Nelms says that maybe in some places we get to see good results of our efforts.

India too needs to learn from these examples around the world. Because we are draining most of the water from the world by pulling it out of the ground. The decreasing rainfall year after year, the drying up of rivers and lakes, are making our problem even bigger.

We need to be careful.  Otherwise it may not be too late.

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