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Page added on February 10, 2018

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The 11 cities most likely to run out of drinking water – like Cape Town

Enviroment

Cape Town faces the unenviable situation of being the first major city in the modern era to run out of drinking water.

However, the plight of the drought-hit South African city is just one extreme example of a problem that experts have long been warning about – water scarcity.

Despite covering about 70% of the Earth’s surface, water, especially drinking water, is not as plentiful as one might think. Only 3% of it is fresh.

Over one billion people lack access to water and another 2.7 billion find it scarce for at least one month of the year. A 2014 survey of the world’s 500 largest cities estimates that one in four are in a situation of “water stress”

According to UN-endorsed projections, global demand for fresh water will exceed supply by 40% in 2030, thanks to a combination of climate change, human action and population growth.

It shouldn’t be a surprise, then, that Cape Town is just the tip of the iceberg. Here are the other 11 cities most likely to run out of water.

1. São Paulo

Brazil’s financial capital and one of the 10 most populated cities in the world went through a similar ordeal to Cape Town in 2015, when the main reservoir fell below 4% capacity.

At the height of the crisis, the city of over 21.7 million inhabitants had less than 20 days of water supply and police had to escort water trucks to stop looting.

Image copyright Getty Images
Image caption At the height of the drought, Sao Paulo’s reservoirs became a desolate landscape

It is thought a drought that affected south-eastern Brazil between 2014 and 2017 was to blame, but a UN mission to São Paulo was critical of the state authorities “lack of proper planning and investments”.

The water crisis was deemed “finished” in 2016, but in January 2017 the main reserves were 15% below expected for the period – putting the city’s future water supply once again in doubt.

2. Bangalore

Local officials in the southern Indian city have been bamboozled by the growth of new property developments following Bangalore’s rise as a technological hub and are struggling to manage the city’s water and sewage systems.

To make matters worse, the city’s antiquated plumbing needs an urgent upheaval; a report by the national government found that the city loses over half of its drinking water to waste.

Like China, India struggles with water pollution and Bangalore is no different: an in-depth inventory of the city’s lakes found that 85% had water that could only be used for irrigation and industrial cooling.

Not a single lake had suitable water for drinking or bathing.

Will Cape Town be the first city to run out of water?

Image copyright Getty Images
Image caption Pollution in Bangalore’s lakes is rife

3. Beijing

The World Bank classifies water scarcity as when people in a determined location receive less than 1,000 cubic metres of fresh water per person.

In 2014, each of the more than 20 million inhabitants of Beijing had only 145 cubic metres.

China is home to almost 20% of the world’s population but has only 7% of the world’s fresh water.

A Columbia University study estimates that the country’s reserves declined 13% between 2000 and 2009.

And there’s also a pollution problem. Official figures from 2015 showed that 40% of Beijing’s surface water was polluted to the point of not being useful even for agriculture or industrial use.

The Chinese authorities have tried to address the problem by creating massive water diversion projects. They have also introduced educational programmes, as well as price hikes for heavy business users.

4. Cairo

Once crucial to the establishment of one of the world’s greatest civilisations, the River Nile is struggling in modern times.

It is the source of 97% of Egypt’s water but also the destination of increasing amounts of untreated agricultural, and residential waste.

Image copyright Getty Images
Image caption The Nile provides 97% of Egypt’s water supply

World Health Organization figures show that Egypt ranks high among lower middle-income countries in terms of the number of deaths related to water pollution.

The UN estimates critical shortages in the country by 2025.

5. Jakarta

Like many coastal cities, the Indonesian capital faces the threat of rising sea levels.

But in Jakarta the problem has been made worse by direct human action. Because less than half of the city’s 10 million residents have access to piped water, illegal digging of wells is rife. This practice is draining the underground aquifers, almost literally deflating them.

As a consequence, about 40% of Jakarta now lies below sea level, according to World Bank estimates.

To make things worse, aquifers are not being replenished despite heavy rain because the prevalence of concrete and asphalt means that open fields cannot absorb rainfall.

Image copyright Getty Images
Image caption Illegal well-drilling is making the Indonesian capital more vulnerable to flooding

6. Moscow

One-quarter of the world’s fresh water reserves are in Russia, but the country is plagued by pollution problems caused by the industrial legacy of the Soviet era.

That is specifically worrying for Moscow, where the water supply is 70% dependent on surface water.

Official regulatory bodies admit that 35% to 60% of total drinking water reserves in Russia do not meet sanitary standards

7. Istanbul

According to official Turkish government figures, the country is technically in a situation of a water stress, since the per capita supply fell below 1,700 cubic metres in 2016.

Local experts have warned that the situation could worsen to water scarcity by 2030.

Image copyright AFP
Image caption A 10-month long drought dried up this lake near Istanbul

In recent years, heavily populated areas like Istanbul (14 million inhabitants) have begun to experience shortages in the drier months.

The city’s reservoir levels declined to less than 30 percent of capacity at the beginning of 2014.

8. Mexico City

Water shortages are nothing new for many of the 21 million inhabitants of the Mexican capital.

One in five get just a few hours from their taps a week and another 20% have running water for just part of the day.

The city imports as much as 40% of its water from distant sources but has no large-scale operation for recycling wastewater. Water losses because of problems in the pipe network are also estimated at 40%.

9. London

Of all the cities in the world, London is not the first that springs to mind when one thinks of water shortages.

The reality is very different. With an average annual rainfall of about 600mm (less than the Paris average and only about half that of New York), London draws 80% of its water from rivers (the Thames and Lee).

Image copyright Getty Images
Image caption London has a water waste rate of 25%

According to the Greater London Authority, the city is pushing close to capacity and is likely to have supply problems by 2025 and “serious shortages” by 2040.

It looks likely that hosepipe bans could become more common in the future.

10. Tokyo

The Japanese capital enjoys precipitation levels similar to that of Seattle on the US west coast, which has a reputation for rain. Rainfall, however, is concentrated during just four months of the year.

That water needs to be collected, as a drier-than-expected rainy season could lead to a drought. At least 750 private and public buildings in Tokyo have rainwater collection and utilisation systems.

Home to more than 30 million people, Tokyo has a water system that depends 70% on surface water (rivers, lakes, and melted snow).

Recent investment in the pipeline infrastructure aims also to reduce waste by leakage to only 3% in the near future.

11. Miami

The US state of Florida is among the five US states most hit by rain every year. However, there is a crisis brewing in its most famous city, Miami.

An early 20th Century project to drain nearby swamps had an unforeseen result; water from the Atlantic Ocean contaminated the Biscayne Aquifer, the city’s main source of fresh water.

Image copyright Getty Images
Image caption Contamination by seawater threatens Miami’s water supplies

Although the problem was detected in the 1930s, seawater still leaks in, especially because the American city has experienced faster rates of sea level rise, with water breaching underground defence barriers installed in recent decades.

Neighbouring cities are already struggling. Hallandale Beach, which is just a few miles north of Miami, had to close six of its eight wells due to saltwater intrusion

BBC



19 Comments on "The 11 cities most likely to run out of drinking water – like Cape Town"

  1. Anonymouse1 on Sat, 10th Feb 2018 9:49 pm 

    Correction:

    Miami is plagued by pollution problems caused by the industrial legacy of the capitalist era.

    Official regulatory bodies admit that a significant % of total drinking water reserves in Floriduh do not meet sanitary standards

    http://jrscience.wcp.muohio.edu/FieldCourses99/MarineEcologyArticles/WaterPollutionandtheFloriA.html

  2. Shortend on Sat, 10th Feb 2018 9:59 pm 

    I live in South Florida, this is a silent crisis, and yes fresh water is being depleted.
    Salt water intrusion of the aquifer is being encountered and will continue as residents unknowingly waste this resource as the population here continues to grow.
    Once salt water contaminates the fresh water aquifer, no fixing it.
    Already, cities like Hallandale is drawing its supply ever westward.
    Read an article once not too long ago in the Miami Herald and one mans crusade to alert about the danger, never heard about it since.
    Out of site, out of mind.
    Basicly, write S. Florida off as a lost cause.

  3. Cloggie on Sun, 11th Feb 2018 12:55 am 

    Water is more important than oil for life.
    I already see tankers leaving the port of Rotterdam filled with (somewhat) fresh water.

    We have 2200 m3/s on offer.

  4. Cloggie on Sun, 11th Feb 2018 2:29 am 

    Large oil tankers can have a volume of 320,000 m3. The world has about 4,300 oil tankers, that can be put to good use after the end of the oil age.

    In Rotterdam an oil-tanker of former fame can be filled with water with a speed of (theoretically) 320,000/2,200 = 145 seconds. A few hours will be fine also.

    Anyone?

    https://en.wikipedia.org/wiki/Rhine

    Other rivers could obviously function as sources of fresh water as well, like the Amazon.

  5. Norman Pagett on Sun, 11th Feb 2018 4:01 am 

    i know this is a serious problem—and not a subject for laughter

    but—– oil tankers can ship water after the end of the oil age?

    using what—sails?

  6. Davy on Sun, 11th Feb 2018 4:48 am 

    “Basicly, write S. Florida off as a lost cause.”

    Many of those houses there in Florida could gather rainwater as a start.

  7. Go Speed Racer on Sun, 11th Feb 2018 6:32 am 

    Nobody is complaining about Elon Musk
    and his orbital Tesla car?

    The Trump-Republican policies make the
    ultra rich even richer.
    Now they build their own rockets
    and dump a car in space.
    To do 4000 pounds of littering
    in outer space.

    So that’s the much hyped, Republican
    “trickle down economics”?? A litterbug
    dumps a car into space where it will sit
    there for millions of years?

    Gee I feel richer already,
    Thx Repub’s and Trump and Musk..

  8. Davy on Sun, 11th Feb 2018 7:15 am 

    Speeder, Muskie is a Democrat. Geeze, I thought you would know things like that.

  9. Shortend on Sun, 11th Feb 2018 8:04 am 

    Davy, said gather rainwater as a start!
    LOL…maybe also grow their own food too while tbey are at it! Sure, Dave, just because it write it, the masses will do it!
    Maybe if they START flushing down pure potable water in the specific tank and stop watering their non indigenous lawns too.
    Yes sir, we are on a roll here folks.
    Forgetabouit.

    Hermine Ricketts and her husband Tom Carroll may grow fruit trees and flowers in the front yard of their Miami Shores house. They may park a boat or jet ski in their driveway. They may place statues, fountains, gnomes, pink flamingoes or Santa in a Speedo on their property.

    Vegetables, however, are not allowed.

    Ricketts and Carroll thought they were gardeners when they grew tomatoes, beets, scallions, spinach, kale and multiple varieties of Asian cabbage. But according to a village ordinance that restricts edible plants to backyards only, they were actually criminals. They didn’t think they were engaged in a Swiss chard conspiracy or eggplant vice, yet they were breaking the law.

    Florida’s 3rd District Court of Appeal upheld Miami Shores’ ban on front-yard vegetable gardens in a recent decision, so the couple will take their case to the Florida Supreme Court. They argue, on behalf of gardeners everywhere, that the village’s restriction is unconstitutional and an infringement on their property rights.

    “That’s what government does – interferes in people’s lives,” Ricketts said. “We had that garden for 17 years.

  10. Davy on Sun, 11th Feb 2018 8:27 am 

    Short, south Florida is hopeless in general but those positioned right can make arrangements at least for the short term. Rainwater collection into cisterns with solar or hand pumps is a good investment. Of course growing food is essential but longer term that is still dependent on the viability of the local. If south Florida goes through a long emergency instead of a flash crash then these strategies will help. Every little bit helps when you are sinking.

  11. Dredd on Sun, 11th Feb 2018 9:42 am 

    Very informative article.

    Gives new meaning to “water everywhere but not a drop to drink.”

    Or … “Ah yes, reminds me of the time I was forced to live on food and water for three days.”

    Most drinking water on Earth is in ice sheets and their glaciers.

    They too are melting away (Hot, Warm, & Cold Thermal Facts: Tidewater-Glaciers – 3).

  12. Duncan Idaho on Sun, 11th Feb 2018 10:14 am 

    Miami will be great snorkle destination, as soon as all the pollution is washed out.
    Bunch of Debbie Downers!
    Jakarta will take a bit longer.

  13. Jef on Sun, 11th Feb 2018 11:11 am 

    1,000 cubic metres is over 200,000 gallons. Thats a big rain catchment tank sitting under your down spout.

  14. Kenz300 on Sun, 11th Feb 2018 11:37 am 

    Unsustainable population growth is stressing our natural resources beyond their capability.

    Too many people demand too many resources, yet the worlds population grows by 80 million every year

    How many charities are dealing with the same problems they were dealing with 10 or 20 years ago with no end in sight.

    Every problem is made worse by the worlds growing population.

  15. Cloggie on Sun, 11th Feb 2018 12:04 pm 

    https://russia-insider.com/en/chinese-plan-ship-russian-water-tanker-load/ri22488

    “Chinese Plan to Ship Russian Water by the Tanker-Load”

  16. Boat on Sun, 11th Feb 2018 12:08 pm 

    Do you live in a shythole?

    hhtps://www.google.com/amp/www.pewresearch.org/fact-tank/2017/06/28/10-facts-about-smartphones/%3famp=1#ampshare=http://www.pewresearch.org/fact-tank/2017/06/28/10-facts-about-smartphones/

    At 22% we know the P’ are a little slow in adapting to nutrition and the smartphone.

  17. Harquebus on Sun, 11th Feb 2018 3:51 pm 

    Kenz300
    I have been reading your comments here for years and this is the first time that I am in agreement with you.

  18. bobinget on Tue, 13th Feb 2018 11:26 am 

    Once a new million barrel oil tanker hauls crude,
    “clean hull’ means that tanker is suitable for hauling
    another fossil fuel product.

    No more single hull tankers, suitable to carry fresh water are being built, as yet. Brand new (virgin) double hull ships, yes.

    Tankers are forbidden to flush seawater ballast tanks near ports for pollution reasons.

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