Tag: water scarcity

One of the world’s biggest cities may be just months away from running out of water

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Photo Courtesy: Henry Romero/Reuter

Mexico City CNN —  Alejandro Gomez has been without proper running water for more than three months. Sometimes it comes on for an hour or two, but only a small trickle, barely enough to fill a couple of buckets. Then nothing for many days.

Gomez, who lives in Mexico City’s Tlalpan district, doesn’t have a big storage tank so can’t get water truck deliveries — there’s simply nowhere to store it. Instead, he and his family eke out what they can buy and store.

When they wash themselves, they capture the runoff to flush the toilet. It’s hard, he told CNN. “We need water, it’s essential for everything.”

Water shortages are not uncommon in this neighborhood, but this time feels different, Gomez said. “Right now, we are getting this hot weather. It’s even worse, things are more complicated.”

Mexico City, a sprawling metropolis of nearly 22 million people and one of the world’s biggest cities, is facing a severe water crisis as a tangle of problems — including geography, chaotic urban development, and leaky infrastructure — are compounded by the impacts of climate change.

Years of abnormally low rainfall, longer dry periods, and high temperatures have added stress to a water system already straining to cope with increased demand. Authorities have been forced to introduce significant restrictions on the water pumped from reservoirs.

“Several neighborhoods have suffered from a lack of water for weeks, and there are still four months left for the rains to start,” said Christian Domínguez Sarmiento, an atmospheric scientist at the National Autonomous University of Mexico (UNAM).

Politicians are downplaying any sense of crisis, but some experts say the situation has now reached such critical levels that Mexico City could be barreling towards “day zero” in a matter of months — where the taps run dry for huge swaths of the city.

Historic lows

Densely populated Mexico City stretches out across a high-altitude lake bed, around 7,300 feet above sea level. It was built on clay-rich soil — into which it is now sinking — and is prone to earthquakes and highly vulnerable to climate change. It’s perhaps one of the last places anyone would choose to build a megacity today.

The Aztecs chose this spot to build their city of Tenochtitlan in 1325, when it was a series of lakes. They built on an island, expanding the city outwards, constructing networks of canals and bridges to work with the water.

But when the Spanish arrived in the early 16th century, they tore down much of the city, drained the lakebed, filled in canals and ripped out forests. They saw “water as an enemy to overcome for the city to thrive,” said Jose Alfredo Ramirez, an architect and co-director of Groundlab, a design and policy research organization.

Photo Courtesy : Cesar Rodriguez/Bloomberg/Getty Images

Their decision paved the way for many of Mexico City’s modern problems. Wetlands and rivers have been replaced with concrete and asphalt. In the rainy season, it floods. In the dry season, it’s parched.

Around 60% of Mexico City’s water comes from its underground aquifer, but this has been so over-extracted that the city is sinking at a frightening rate — around 20 inches a year, according to recent research. And the aquifer is not being replenished anywhere near fast enough. The rainwater rolls off the city’s hard, impermeable surfaces, rather than sinking into the ground.

The rest of the city’s water is pumped vast distances uphill from sources outside the city, in an incredibly inefficient process, during which around 40% of the water is lost through leaks.

The Cutzamala water system, a network of reservoirs, pumping stations, canals and tunnels, supplies about 25% of the water used by the Valley of Mexico, which includes Mexico City. But severe drought has taken its toll. Currently, at around 39% of capacity, it’s been languishing at a historic low.

“It’s almost half of the amount of water that we should have,” said Fabiola Sosa-Rodríguez, head of economic growth and environment at the Metropolitan Autonomous University in Mexico City.

In October, Conagua, the country’s national water commission, announced it would restrict water from Cutzamala by 8% “to ensure the supply of drinking water to the population given the severe drought.”

Just a few weeks later, officials significantly tightened restrictions, reducing the water supplied by the system by nearly 25%, blaming extreme weather conditions.

“Measures will have to be taken to be able to distribute the water that Cutzamala has over time, to ensure that it does not run out,” Germán Arturo Martínez Santoyo, the director general of Conagua, said in a statement at the time.

The exposed banks of the Villa Victoria Dam, part of the Cutzamala System, in Villa Victoria, Mexico on January 26, 2024.

Photo Courtesy :Raquel Cunha/Reuters

Around 60% of Mexico is experiencing moderate to exceptional drought, according to a February report. Nearly 90% of Mexico City is in severe drought — and it’s set to get worse with the start of the rainy season still months away.

“We are around the middle of the dry season with sustained temperature increases expected until April or May,” said June Garcia-Becerra, an assistant professor in engineering at the University of Northern British Columbia.

Natural climate variability heavily affects this part of Mexico. Three years of La Niña brought drought to the region, and then the arrival of El Niño last year helped deliver a painfully short rainy season that failed to replenish the reservoirs.

But the long-term trend of human-caused global warming hums in the background, fueling longer droughts and fiercer heat waves, as well as heavier rains when they do arrive.

“Climate change has made droughts increasingly severe due to the lack of water,” said UNAM’s Sarmiento. Added to this, high temperatures “have caused the water that is available in the Cutzamala system to evaporate,” she said.

Last summer saw brutal heat waves roil large parts of the country, which claimed at least 200 lives. These heat waves would have been “virtually impossible” without climate change, according to an analysis by scientists.

The climate impacts have collided with the growing pains of a fast-expanding city. As the population booms, experts say the centralized water system has not kept pace.

‘Day zero?’

The crisis has set up a fierce debate about whether the city will reach a “day zero,” where the Cutzamala system falls to such low levels that it will be unable to provide any water to the city’s residents.

Local media widely reported in early February that an official from a branch of Conagua said that without significant rain, “day zero” could arrive as early as June 26.

But authorities have since sought to assure residents there will be no day zero. In a press conference on February 14, Mexican President Andrés Manuel López Obrador said that work was underway to address the water problems. Mexico City’s mayor, Martí Batres Guadarrama, said in a recent press conference that reports of day zero were “fake news” spread by political opponents.

Conagua declined CNN’s interview requests and did not answer specific questions on the prospect of a day zero.

But many experts warn of a spiraling crisis. Mexico City could run out of water before the rainy season arrives if it carries on using it in the same way, Sosa-Rodríguez said. “It’s probable that we will face a day zero,” she added.

This doesn’t mean a complete collapse of the water system, she said, because the city isn’t dependent on just one source. It won’t be the same as when Cape Town in South Africa came perilously close to running totally dry in 2018 following a severe multi-year drought. “Some groups will still have water,” she said, “but most of the people won’t.”

Raúl Rodríguez Márquez, president of the non-profit Water Advisory Council, said he doesn’t believe the city will reach a day zero this year — but, he warned, it will if changes are not made.

“We are in a critical situation, and we could reach an extreme situation in the next few months,” he told CNN.

‘I don’t think anyone is prepared’

For nearly a decade, Sosa-Rodríguez said she has been warning officials of the danger of a day zero for Mexico City.

She said the solutions are clear: Better wastewater treatment would both increase water availability and decrease pollution, while rainwater harvesting systems could capture and treat the rain, and allow residents to reduce their reliance on the water network or water trucks by 30%.

Fixing leaks would make the system much more efficient and reduce the volume of water that has to be extracted from the aquifer. And nature-based solutions, such as restoring rivers and wetlands, would help provide and purify water, she said, with the added advantage of greening and cooling the city.

In a statement on its website, Conagua said it is undertaking a 3-year project to install, develop and improve water infrastructure to help the city cope with decreases in the Cutzamala system, including adding new wells and commissioning water treatment plants.

But in the meantime, tensions are rising as some residents are forced to cope with shortages, while others — often in the wealthier enclaves — remain mostly unaffected.

“There is a clear unequal access to water in the city and this is related to people’s income,” Sosa-Rodríguez said. While day zero might not be here yet for the whole of Mexico City, some neighborhoods have been grappling with it for years, she added.

Photo Courtesy : Henry Romero/Reuters

Amanda Martínez, another resident of the city’s Tlalpan district, said for people here, water shortages are nothing new. She and her family often have to pay more than $100 for a tank of water from one of the city’s water trucks. But it’s getting worse. Sometimes more than two weeks can go by without water and she fears what may be coming, she told CNN.

“I don’t think anyone is prepared.”

Neerain is proud to republish this blog for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

This blog is published by:

CNN

We would like to spread this for the benefit of fellow Indians.

Author : Laura Paddison, Jack Guy and Fidel Gutiérrez

Published On: 25, February, 2024

 

India’s man-made water crisis threatens more cities

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Photo Courtesy : Ador T. Bustamante/Gulf News

Chennai water crisis isn’t an isolated case. 21 cities are expected to run out of water

  • 200,000 Indians die every year because they don’t have a safe water supply.
  • In theory, India receives enough rain every year to meet the needs of over a billion people.
  • A rapidly urbanizing and developing India needs to drought-proof its cities and rationalize its farming.

One of India’s largest cities, Chennai, is dealing with a crippling crisis: It has run out of water. In the middle of a particularly hot summer, the four lakes that supply the capital of the southern state of Tamil Nadu have dried up; together they contain just 1 per cent of the volume they did last year. Residents don’t have enough water to drink, bathe or wash clothes. People are working from home; malls have closed their bathrooms; and restaurants have shut their doors.

The natural instinct is to blame the situation on climate change and, indeed, the last monsoon’s rains were especially weak. While that’s certainly played a role, however, Chennai’s is largely a man-made disaster — one that more Indian metropolises are soon to suffer no matter the weather.

According to a study by the federal government think tank Niti Aayog, 21 Indian cities will run out of groundwater by next year, including the capital New Delhi and the information technology hub of Bengaluru. Two hundred thousand Indians already die every year because they don’t have a safe water supply, the report said. A shocking 600 million people face “high to extreme” water stress.

As the world warms, the rains on which India depends have become erratic: They frequently fail to arrive on time, and they fall in a more disparate and unpredictable pattern.

– Mihir Sharma

That Chennai should have run dry first is instructive. Less than four years ago, the now drought-ridden city was inundated by devastating floods. Though located on a flood plain, the city had paved over the lakes and wetlands that might have helped the process of recharging the water table. As a result, heavy rains couldn’t percolate into aquifers under the city. Water pooled and surged aboveground. That reduced the resources available to deal with a crisis like this year’s.

Photo Courtesy  : istock

Elsewhere, demand is the issue. In theory, India receives enough rain every year to meet the needs of over a billion people. According to the country’s Central Water Commission, it requires at most 3,000 billion cubic metres of water annually and receives 4,000 billion cubic metres of rain.

Inefficiency and misuse

But too much water is wasted thanks to inefficiency and misuse. The situation is particularly dire in India’s northwest, irrigated by the great rivers that rise in the Himalayas. Indians are taught to revere the “green revolution” of the 1970s, when the northwest became India’s granary thanks to canals and tube wells that pumped out groundwater. That revolution, however, has turned out to be unsustainable. In 2011, 245 billion cubic metres of water was withdrawn for irrigation — a quarter of the total groundwater depletion globally that year.

Northwestern states should be growing less water-intensive crops; areas in the east of the country that receive much more plentiful rainfall should take their place as the bread baskets of India. But shifting cultivation patterns around is politically problematic. Farmers in the northwest don’t just expect to continue to grow water-intensive crops, they also want free or subsidised power with which to run the tube wells that pump out their rapidly depleting groundwater.

limate change activists have long argued that water will be the political flashpoint of the 21st century. Water-stressed India will likely be one of the first places to test that theory. The state of Tamil Nadu complains that it doesn’t receive its fair share of the waters of the Cauvery River; recently, the authority that nominally manages the river accused the government of neighbouring Karnataka of holding onto water that it should have allowed to flow down to the Cauvery delta.

Things might get even testier up north, where more than a billion people depend upon rivers that rise in the Himalayas. Bangladesh and Pakistan feel that India is being stingy with river water. Indian strategists constantly worry that China will divert water from the Himalayan rivers that rise in Tibet to feed the thirst cities in its own north.

The floods in Chennai are a warning. As the world warms, the rains on which India depends have become erratic: They frequently fail to arrive on time, and they fall in a more disparate and unpredictable pattern. The country can no longer afford to waste its dwindling resources.

A rapidly urbanising and developing India needs to drought-proof its cities and rationalise its farming. Water-harvesting must be a priority, alongside mechanisms for groundwater replenishment. As it is, every summer is hotter and less bearable. If Indians run short of water as well, one of the world’s most populous nations could well become unlivable.

NeeRain is proud to republish this blog to spread awareness about the situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This blog is published by:

Bloomberg

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Author : Mihir Sharma

Published On : 19 June, 2019

 

A world without water: Scary future lies ahead

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We are living in water-stressed times; there are water-haves and a rising tide of water have-nots.

Photo Courtesy : Deccan Chronicle

In his 2015 sci-fi thriller, The Water Knife, set in Phoenix, Arizona, sometimein the near, dystopian future, novelist Paolo aacigalupi talks about placesthat are catastrophically water-starved, where suburbs have morphed intoghost towns and where people are fleeing drought. A riveting character in the book called Angel is a “water knife”, tasked to infiltrate and sabotage the water supplies of competing states.

I read excerpts of the book. It is racy, graphic, and terrifying, and not in the realm of the implausible anymore. We are living in water-stressed times; there are water-haves and a rising tide of water have-nots. A friend who lives in Gurgaon recently tweeted that in upscale condominiums in his city, there is free, unmetered, unlimited water for residents and one can actually leave a tap running and go off for a week with no charge and minimal consequences.

Meanwhile, the residents of Chennai, India’s sixth largest city, are livingthrough horrific times, though it rained a little earlier this week. Chennai has basically almost run out of water. The city is almost entirely dependent on the northeast monsoon, which starts in October. Last year, it received very little rainfall. Even thousands of kilometers away from Chennai, it is hard to insulate oneself against its troubles. All the four reservoirs that supply Chennai its water are running dry this summer because of scant rainfall in 2018.

Chennai’s water crisis is front-page news; friends’ Facebook posts describe in grim detail what is it is like to go without enough water day after day. There are images and video clips of long queues of people around water tankers in searing heat; there have been reports of scuffles over water. Many of Chennai’s hotels are rationing water for guests, and some private companies have reportedly asked their staff to work from home.

This week, the state government has announced that a train will bring water to Chennai from Jolarpettai in Vellore district, more than 200 km, away at a huge cost. The Opposition DMK leadership is against the idea. In short, more troubles lie ahead.

Chennai makes the headlines because it is a metropolitan city. But it is by no means the only place suffering acute water stress. Nearly half the country is grappling with drought-like conditions, and this has been particularly bad this year in western and southern India because of the below-average rainfall.

The question that interests me most about Chennai is how did it get to this sorry state? Tamil Nadu was perhaps the first state in India to make rainwater harvesting (RWH) mandatory for all buildings in 2003. Chennai has more than eight lakh RWH structures. So why are so many people in that city facing such an acute water shortage?

There hangs a tale which explains just about every mess that you see in nurban India. A building with a rainwater harvesting system on paper does not mean it actually works. A bit like the existence of a toilet does not mean it is used.

It will not work if it is not maintained properly. Friends in Chennai tell me there is huge apathy among a lot of people towards maintaining these structures. The water crisis had never been this acute. Many of the rainwater harvesting structures in Chennai are also inefficient.

If Chennai and so many other cities are facing a water crisis today, one bigreason is that neither policymakers nor many people living in these places truly realise the horrors of running out of water. If it starts raining anytime soon, people will forget their recent sufferings. That’s why the inefficiencies in the water sector remain, and rainwater storage and reuse and treatment of greywater are not given the importance that they deserve.

Here is one scandalous statistic about water losses. Lack of proper maintenance of infrastructure causes losses of almost 40 per cent of piped water in urban India.

Photo Courtesy : Quizlet

Chennai is currently in the news, but the big picture regarding water in India is grim. The Niti Aayog, the government’s think tank, acknowledges that nearly 600 million people in the country face high-to extreme water stress. There is a deepening national groundwater crisis, with 54 per cent of wells declining in level due to unsustainable withdrawals for irrigation.

The Narendra Modi government’s new Jal Shakti (water) ministry has announced a grand plan to provide piped water connections to every household in India by 2024. But the key question remains — what will happen if there is no water to give?

What will it take to realise that time is running out and we have to also wake up to simple ideas about conserving water. India captures only eight per cent of its annual rainfall. This is among the lowest in the world. Our ancestors used to capture far more. But those traditional methods have been neglected to the point where most are in ruins. We also don’t use our wastewater well.

There is much talk about security. It is time to realise that water is a security issue. Millions of Indians are not water-secure. Fights are breaking out over water. In Madhya Pradesh, the state government has reportedly asked the police in all its 52 districts to guard water sources. An existential threat hovers over many prosperous pockets of India. A drought is a huge part of the problem. The situation is getting steadily worse with unregulated extraction of groundwater, which is depleting underground aquifers. Take Bengaluru. Whoever has money drills a borewell to tap groundwater in the newer suburban areas where tech companies are clustered in the city.

A few years ago, I remember meeting a young hip technocrat who told me that “l fear the day when I will have soap all over my face and there is not a drop of water coming out of the tap”.

But I also saw a fascinating initiative called the Participatory Aquifer Mapping Project, which sought to involve Bengaluru’s residents in sharing information about borewells in their communities so that the city’s policymakers could learn what was happening underground and begin to craft a suitable response.

Today, in this country, demand for water vastly outstrips supply; the situation can deteriorate sharply unless we realise that this is an emergency and we must treat water as a precious resource and everyone must work towards conserving it.

The future could well resemble dystopian fiction.

NeeRain is proud to republish this blog to spread awareness about the situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This blog is published by:

Deccan Chronicle

We would like to spread this for the benefit of fellow Indians.

Author : Patralekha Chatterjee

Published On: 28, June, 2019

Water Crisis In Pune : No Permission To New Building In PMRDA Without Assessment : Saurabh Rao

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Photo Courtesy : Pune Pulse

Second meeting called by the Divisional Commissioner of Pune Saurabh Rao regarding the water crisis in PMC and PCMC was held today. More than 60 residents representing various organisations attended the meeting raising various issues.

Advocate Satya Muley shared important points that were discussed with Pune Pulse.

Important minutes of meeting

Divisional Commissioner of Pune announced in presence of PMRDA Commissioner that henceforth no new permissions shall be given in PMRDA jurisdiction without ascertaining availability and capability of local body/PMRDA/Zilla parishad to provide water to the new construction. No new construction permission shall be provided based on an affidavit taken from builders.

Almost 60 to 70 representatives of housing Societies, Housing Federations, Akhil Bharatiya Grahak Panchayat, Maharashtra Housing  societies federation were present.

The demand for providing water through tankers by PMC and PCMc was once again discussed and DC mentioned that the subject is being evaluated.

Spot visits to both corporations have been directed to understand the ground level realities and offer solutions.

Dedicated email id to be shared by both corporations to register complaints from housing complexes regarding water scarcity.

From the next meeting complaints to be received in advance and solutions to be offered during the next monthly meeting.

Adv Satya Muley stated that it is a district wide problem and intensive efforts by the special committee is required. Although providing immediate solutions to current scarcity is important, long term planning is also important which appears to be lacking by both the corporations.

Sunil Koloti, a resident of Nyati Windchimes who was part of the meeting stated that the meeting was fruitful but only it should turn into prompt action. 75 percent of our monthly maintenance goes into procuring water through tankers. PMC must come up with some solution now.

Another resident, Dilip Shah, founder of Undri Residents Forum said, “There were many residents who were present today.  We are hoping that strong action is taken by PMC as well as PCMC. It’s high time citizens get their due. Potable drinking water is what we are demanding. This meeting should not turn into another assurance but no result.”

Neerain is proud to republish this blog for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

This blog is published by:

Pune Pulse

We would like to spread this for the benefit of fellow Indians.

Publish On: 15, January, 2024

Rainwater Harvesting: A Viable Means To Prevent Water Crisis

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Photo courtesy:Istock

“Water, water, every where, / Nor any drop to drink”

These all too familiar lines from the poem by Samuel Taylor Coleridge seem to be ringing too close to home as water becomes an increasingly scarce resource with every passing day.

Water Crisis was ranked as the #5 Global Risk in terms of impact on society by the World Economic Forum in January 2020, making it an alarming issue requiring an earnest redressal. What is interesting is that it is not really about scarcity, but rather proper water management. To quote the World Water Council, “There is a water crisis today. But the crisis is not about having too little water to satisfy our needs. The crisis is managing water so badly that billions of people — and the environment — suffer badly.”1

For sustainability, a healthy relationship between natural cycles and the available natural resources is a must. To further this objective and protect the existing reservoirs, rivers, aquifers, and ecosystems from further destruction, one needs to harness the largest and most accessible resource currently going down the drain: Rain.

What is noteworthy is that harnessing rain neither requires no energy nor any natural resource; on the contrary, it helps preserve the much-needed fast depleting resource: Water.

Rainwater harvesting is an ancient concept that is simple to implement and scalable. Simply put, it is the act of collecting rainwater and storing it for later use.

Rainwater harvesting systems have many an avatar, from the basic rain barrels to collect rainwater to more intricate structures with pumps, tanks, and purification systems.

Rainwater collected through any system is fit for reuse. Without filtration and purification, it finds use in most functions minus consumption — e.g., flushing toilets, washing cars, irrigation etc. Once put through the purification process, it is fit for consumption as well.

In urban areas, the rain falls on roofs, buildings, roads, and other impenetrable hard surfaces, resulting in urban flooding giving rise to another set of challenges. This makes rainwater harvesting even more essential and advantageous. Urban flooding on one hand, and increasing water shortage on the other, is the driving force behind government norms to inculcate the culture of rainwater harvesting in more and more cities.

Let us take the case of Mexico City as an example. It is a city with one of the highest demands for water in the world. Today it is plagued by drying aquifers, the city to sink to the earth by 50 centimeters per year. Today it is estimated that while a large volume is lost every way on account of leaking water pipes across the water management system, heavy rains cause heavy flooding that leaves substantial damage behind every occurrence.2 Researchers confirm that if the city was to adopt an effective rainwater harvesting system, 60 percent of the city’s water needs could be met.3 In light of this, Isla Urbana, a local non-profit, has installed 20,399 rainwater harvesting systems from 2009 to date. The systems have recorded a harvest of 815 million liters annually.4 Mexico City’s water authority, SACMEX, has also installed rainwater harvesting systems in 85 schools in the Tlalpan and Alvaro Obregón boroughs.

Likewise, India — a country that can collect up to 1,000 liters of water or even more during the heavy monsoons — has shown a similar response. In the southern state of Kerala, the government has recently constructed around 87,000 rainwater harvesting pits across schools, offices, and residences,5 with the expectation of these pits to last up to five years, with minimum maintenance.

Following the trend, Singapore installed a rainwater harvesting system on the roof of a 15-story skyscraper. The system diverts the rainwater collected on the roof to two rainwater tanks. This water is supplied to the building’s toilets, with no processing or treatment — a demonstration of how a project like this can be successfully implemented in metropolitan cities such as New York with countless high-rises to cater to their equally high water demands (981 million gallons consumption per day, as of 20206).

But New York is hardly a city to miss out on the ongoing trends. NYC’s Department of Environmental Protection recently initiated a Rain Barrel Giveaway Program as part of their $2.4 billion Green Infrastructure Plan. Its objective is to encourage citizens to capture stormwater before it flows into the sewer system. The intention being to reduce sewer overflows into local waterways by 2030.

 

Photo courtesy:India Mart

The world is slowly but surely waking up to the fact that rainwater harvesting systems need to be an essential part of the infrastructure. Irrespective of the intricacies, all rainwater harvesting systems require five fundamental components:

Catchment – The surface to collect rainwater. It could be a rooftop, a paved flooring surface, or a landscaped region. The volume of water you harvest is a function of the surface area of the catchment.

Gutters and conduit Pipes – They are responsible for directing the water to the storage tank. The most widely used materials for these are half-round pipes made of galvanized iron (GI), steel, aluminum, and uPVC, with GI, steel, and aluminum being the preferred options. Lead and other metal gutters (GI and steel) are not a wise choice for potable water systems. The slightly acidic quality of rain can dissolve lead and other heavy metal contained in gutter solders, contaminating the water supply.

The safest option to get the most usable rainwater is uPVC Pipes. They deliver faithfully on the promise of:

  • water with no harmful metals lacing it;
  • no leakages on account of corrosion over the years;
  • their almost frictionless surface allows for the maximum quantity of water to flow to the storage system;
  • their lighter weight allows for installation virtually anywhere.

Filters and first flush devices – Investing in the correct filtration device is a must. The filtration system should be one that can effectively remove harmful and polluting contaminants. A first flush valve flushes out the first spell of rain, which carries relatively more toxins from the catchment surface and air.

Storage tanks – An important component of the system. Depending on the space availability, they can be overhead, underground, or stacked. Common materials used for these tanks are poly, galvanized steel, and concrete. If the tank is above ground, measures to prevent algae growth will be needed.

Delivery systems – Piping systems that deliver the stored and filtered rainwater until the point of use. The material of pipes used for this purpose is the same as that of conduit pipes. uPVC pipes present the best option to deliver quality water consistently over the years. With 50+ years of life, no rust, no

corrosion, no heavy metals, and an almost frictionless surface, they offer a perfect solution. High-quality uPVC pipes assure you of a leak-free, durable, and minimal maintenance delivery system.

While building a rainwater harvesting system or incorporating it in a facility, it is crucial to be careful while choosing the components for the solution. It is crucial to pick the right materials. The choice at this stage will define the efficacy of the solution and yield the desired results. Rainwater harvesting, if done right, can help the world tide over the water crisis, allowing us to leave a more beautiful world for your future generations.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

Water Online

We would like to spread this for the benefit of fellow Indians.

Author :  Saumya Jain
Published On: June 29, 2021

Making India water-secure: Solutions for the future

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Photo courtesy: Indiamart

‘Water, water everywhere and not a drop to drink’ – this predicament of the sailors in Samuel Taylor Coleridge’s famous poem is a portent to our collective futures; one with little to no access to safe water. In 2019, Chennai, a city that receives twice London’s average annual rainfall at 1,400 mm, had to meet its water needs by trucking in 10 million liters of water a day. The 2018 drinking water crisis in ‘Queen of Hills’ Shimla made international headlines when policemen were deployed on the ground to manage water distribution.

The NITI Aayog’s 2018 Composite Water Management Index (CWMI) depicts an unsettling picture of macro-water availability in India – despite being home to 17% of the world’s population, it has only 4% of the world’s freshwater resources. The total water demand in India is projected to increase by 22% and 32% in 2025 and 2050 respectively and, by 2050, 85% of this demand is expected to come from industrial and domestic sectors alone. Among the regions, the south and the northwest  are expected to face the worst in next two years. About two lakh people die every year due to inadequate water, sanitation and hygiene and ~820 million Indians living in twelve river basins across the country have per capita water availability close to or lower than 1000m3, the official threshold for water scarcity as per the Falkenmark Index.

To address this looming water crisis and ensure water security, it is imperative to devise a holistic urban water management system that can help balance biodiversity by protecting and restoring the health of waterways and wetlands, mitigate flood risk and damage, provide for sustainable and resilient communities, promote sustainable development goals (SDGs), and address the needs of the last person in the queue.

Photo courtesy : Ministry of Jal Shakti

Some of the solutions available to this end include:

  1. Rejuvenation / conservation of water bodies: Replenishing and restoring the health of natural water bodies and wetlands is the single-most effective way of securing a safe source of water. Cities, like Bengaluru, have 210 lakes, covering 3,622 acres with a capacity of 35,000 million ft3. Long-term efforts such as Namami Gange are also bearing fruits. However, for more localized solutions, it is important that traditional water storage structures such as vavsand baolis are rejuvenated and maintained.
  2. Rainwater harvesting: India receives bountiful rains – last Monsoon, India received 925 mm rainfall in just four months. A part of the immense potential to create sources of water through rainwater harvesting is being realized – as on February 2, 2023, more than 1.19 million water conservation and rainwater harvesting structures have been constructed across India.
  3. Government initiatives: In the past few years, the progress towards providing piped water supply and last-mile delivery of water has been stupendous. The one-of-its-kind Jal Jeevan Mission supplied tap water to 10.64 crore – 55% – households in rural India until November 2022 and more than 15 lakh women were trained for testing water quality through field test kits.
  4. Digital interventions: Technologies such as artificial intelligence, machine learning, and Internet of Things (IoT) can help in flood prediction, rain forecasting, detecting water leakages, treating wastewater and harvesting rainwater. AI tools are capable of analyzing the data from recycling plants and suggesting ways to reduce energy consumption up to 30%, contributing to overall sustainable practices.
  5. Stemming groundwater depletion: Since agriculture utilizes the majority of groundwater, the World Bank has been supporting innovative projects targeted at the agrarian communities. These include Atal Bhujal Yojana, the world’s largest community-led groundwater management program and Paani Bachao, Paisa Kamao in Punjab that resulted in water savings between 6 and 25% without any adverse effect on the yield. With states like West Bengal, Jharkhand, Bihar, Assam and Manipur among others reporting high levels of arsenic in the groundwater, efforts for decontamination would also have to become part of the plan.

There is no doubt that the problem of water scarcity is one of environment, population, governance, health and well-being. Having to walk long distances and stand in long lines every day, 163 million people across the country continue to live without clean water close to their homes and ~0.2 million people die every year due to inadequate water, sanitation and hygiene. The population concentration is disproportionately high in Indian cities, 30 of which, according to the World Wide Fund for Nature (WWF), stare at a grave water risk.

Given the seriousness and complexity of the problem, policymakers must therefore employ systems thinking – an approach that can create an ecosystem for innovation that develops big-picture perspective, focuses on opportunities in a problem, and fosters adaptation amid rapidly-evolving environments. There is no doubt that greater involvement of communities can heavily alter the outcome of urban water management solutions. At the same time, funding such programs can meet a roadblock, especially in the wake of the devastating impacts of the pandemic. Therefore, fostering public-private partnerships (PPP) that can work by engaging communities, funders, corporate stakeholders and creating awareness will play a critical role in achieving the goal ahead.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

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Author : Dr Nidhi Pundhir

Published On: March 28, 2023, 2:23 PM

Water conservation in real estate: A necessity for India’s sustainable future

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Water scarcity is a major issue in India, with the majority of the population having insufficient access to safe and potable water. The problem is exacerbated by a rapidly growing population, unplanned urbanization, and droughts caused by climate change. As it is one of our basic necessities, it becomes essential to conserve this precious resource. With the real estate sector being one of India’s largest consumers of water, it is critical to accelerate and implement water conservation measures in this sector to ensure sustainable development. 

Photo courtesy: Istock

Water Crisis: The Current Scenario

Quenching the thirst of India’s 18% of the world’s population, while using only 4% of its water resources makes India one of the world’s most water-stressed countries. As per a report by NITI Aayog, many Indians experience high to extreme water stress. This difficulty is aggravated by India’s dependence on the monsoon, which is becoming more unpredictable for its water needs. Even as the country experiences more floods and droughts, climate change is likely to make this pressure on water resources worse.

The water crisis is not limited to rural areas, as urban areas are also experiencing severe water scarcity. The major reason for this is the ever-increasing population. Taking an example of one of the largest metropolises, Mumbai alone needs over 4200 million litres of water per day but manages to distribute about 3850 million litres of water per day. And interestingly, as per the newspaper reports, this demand is likely to go up to 6424 million litres per day by 2041. How will this large metropolis be able to source such huge quantities of water? Currently, the city of Mumbai relies on lakes and dams, but what comes next? Urbanisation has resulted in the devastation of natural water bodies such as lakes, rivers, and ponds, further aggravating the crisis.

Role of Real Estate in Mitigating the Water Crisis

Real estate, which is a crucial component of any urban foundation, can help mitigate the problem by implementing innovative water-saving and recycling solutions. The developer community is taking effective measures to contribute to this cause. 

Earlier, a lot of water wastage happened owing to the usage of drinking water in construction activities, but this is not the case anymore. Due to stricter government policies and to contribute to this natural resource from becoming extinct, real estate developers started taking efforts to use non-drinking water. However, this has now become a practice where developers rely on underground water resources or non-potable water and have water recycling plants on site to reduce this wastage. 

Photo courtesy: Myloview

Additionally, it is now mandatory for developers to install rainwater harvesting system and grey water recycling systems that can help reuse wastewater for non-potable purposes such as cleaning and flushing. Along with developers, individual property owners, too, are using water-efficient systems and fixtures, such as low-flow toilets, showerheads, and faucets, and water-saving appliances, such as washing machines and dishwashers. This would not only reduce water consumption but also save money on water bills. 

Adding to these efforts, many developers today strive for green certification and rating systems such as LEED (Leadership in Energy and Environmental Design) and Energy Star. These provide a framework for developers to implement sustainable practices in real estate. These certification programs can incentivize the adoption of water conservation practices and make real estate more environmentally friendly.

Additionally, real estate developers can promote sustainable landscaping techniques that use less water. Native plants that need less water for irrigation, permeable surfaces that let water seep into the ground, and mulch that keeps moisture in the soil are all components of sustainable landscaping. Furthermore, sustainable landscaping encourages biodiversity, which increases the site’s ecological value.

While the government is taking efforts to carry out all the important measures to conserve water, a lot of education and awareness is still needed. Along with real estate developers, individual property owners, occupants, and tenants should also contribute to significantly reduce water consumption.

The real estate industry has a significant impact on water consumption, and conservation and implementing sustainable practices can help preserve our planet’s most precious resource. By incorporating efficient water management systems, the real estate industry can contribute to water conservation and help create a more sustainable future. On this World Water Day, let us commit to protecting our planet’s water resources and working towards a better future. Let’s accelerate this process and be the change that we want to see!

Neerain is proud to republish this blog for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

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https://timesofindia.indiatimes.com/blogs/voices/water-conservation-in-real-estate-a-necessity-for-indias-sustainable-future/

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Author: Nirav Dalal

Publish On: April 9, 2023

A deeper look into the roots of Water Crisis in India

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Introduction to Water Scarcity

The issue of water scarcity is a global problem. The unequal distribution of water resources, and the great demand of freshwater globally has led to what the World Economic Forum calls as one of the largest global risks in terms of potential impact over the next decade in 2019. The increase in demand for freshwater is a result of, but not limited to, the increasing world population, changes in consumption, and industrial demands. Further, the great inequity between the developed and developing countries, in terms of water resources, grows larger as drinking water and water usage is becoming privatized and coupled with economic growth. This has led to Lower Economically Developed Countries (LEDCs) to lose opportunities to gain water shifting government priorities.

Photo courtesy: https://blog.nextias.com/water-crisis-a-complete-picture

The issue of water scarcity is best seen from the perspective of India, a crisis which affects approximately 1 million people a year. The water crisis playing out in India today can be seen as a microcosm of the overall situation that will, or already has, affected many countries in the world. Private water tank owners illegally smuggle and sell clean water at expensive prices, greatly exacerbating the issues of the water crisis in the first place. That, coupled with infrastructural issues and climate change, the issue of water scarcity in India is surely important to examine. This blog seeks to examine the causes of water scarcity in India, the effects it has on the population, and the possible solutions that already exist and/or should be implemented at a local and a national level.

Causes for the Water Crisis in India

The two major monsoons in India, the North-East and the South-West monsoons, account for a large proportion of water that can be harvested and distributed. However, as a result of climate change, monsoons are being disrupted and losing a lot of water.

According to the India Meteorological Department in 2018, the North-East monsoon was deficient by 44% while the South-West monsoon fell short by 10%. Lower rainfall has reduced water levels by about 32% in 91 major reservoirs across the country.

As stated by Impakter, “Unusual temperatures caused by climate change have made rainfall erratic with significant changes in monsoon patterns making droughts and floods more common in many parts of India.”

Photo courtesy:istock

Causes for the Water Crisis in India

The rapid urbanization of India coupled with a lack of city planning has led for former ponds to be used up due to the rising population and a general lack of infrastructure used to treat wastewater for reuse nor an appropriate method of collecting and distributing water.

According to the Central Water Commission, the country still receives enough rainfall to meet the needs of over 1 billion people. Yet, due to poor city planning and the growing population, India only catches only 8 percent through inefficient rainwater harvesting.

Effects of the Water Crisis in India

The water crisis in India affects hundreds of millions of people. Though a lot of Indians are capable of purchasing drinking water from private distributors, rural Indians are faced with walking kilometers away to reach a well or public water pump. Indians who are unable to purchase water are forced to dig bore wells, especially in times of crisis.

First, in June 2016, Latur faced the depletion of approximately 90% of water sources. Next, in 2019, Chennai completely depleted its water supply on the 19th of June, because of deficient rainfall in the previous year’s monsoons.

The vibrant ecosystems of India, and the lives of the indigenous flora and fauna, are threatened by this lack of water. In 2016, the Indian cities of Mettur and Kolathur, in the face of a drought, saw wild animals like elephants, tigers, and deers sneaking into the city in search of water. Indian gaurs in Madurai, Tamil Nadu wound up dead as they fell into wells in search of water.

Agriculture makes up about 16% of India’s economy, according to the World Bank in 2019, and employs almost 44% of India’s working population. In the absence of water, farmers wouldn’t be able to produce crops. This causes much of the farming industry in India to cease operations, collapsing the local economies of smaller Indian towns. This has led farmers and other workers in the agricultural sector to move out into cities in search for jobs. However, this increases the demand for water in major cities, and further complicates the strain that major Indian cities have on the scarce supply of water

Efforts to the Water Crisis

The Government of India has established a new ministry and launched cleaning programs in order to increase the whole country’s water use efficiency. Firstly, the Jal Shakti ministry was formed by Prime Minister Narendra Modi in June 2019. It combines the Ministry of Water Resources, River Development and Ganga Rejuvenation, with the previous Ministry of Drinking Water and Sanitation to form a specialized ministry to clean the river Ganges, settle international water disputes, and provide safe drinking water to the people of India. The Ganga Action Plan was started in 1985 to tackle the problem of water pollution in the river Ganges, however government incompetence hindered the action plan to be anywhere close to efficient. Prime Minister Narendra Modi announced that his government would be investing more into managing the pollution of the various rivers in India.

Non Government Organizations (NGOs) like ‘FORCE’ and ‘Safe Water Network’, along with international organizations such as ‘We are Water’ and UNICEF are actively working to provide water supply and sanitation to villages and dealing with the overall water crisis in India. One way NGOs help is by raising social awareness of these issues. Many smaller NGOs use social media, advertising campaigns, and engaging with local people in order to educate how to manage water efficiently at a local level. For example, ‘We are Water’ publishes documentary films every year to raise social awareness on the severe water scarcity issues of India, along with other countries’ scarcity issues as well. Another way NGOs help is by creating Water Resources Projects. For example, UNICEF supported the creation of a 1000+ hectare catchment plan near Ahmednagar, Maharashtra strictly for domestic usage. The Jal Bhagirathi Foundation is prominent in Rajasthan for covering over 550 villages and reviving more than 2000 water harvesting resources in the region.

Possible Solutions

As technology improves, new innovations allow ways to manage water resources more effectively, and possibly solve the water crisis in India. One such technology is rainwater harvesting. A lot of homes already, in India, have rainwater harvesting structures in order to be self sufficient. In Banglore, Biome Environmental Trust and Friends of Lakes dug upto 1 million of these rainwater harvesting wells and connected them to the groundwater, collecting about 60% of total rainwater in the region. Desalination, or the process of treating sea water to make it fit for drinking, is a technique that can solve the problem of water shortages, especially in coastal cities. Israel has already utilized desalination for industrial and domestic use. The Indian government is already looking into desalination technologies, especially for coastal cities like Chennai. Another technology used to manage water resources is the smart water meter. WEGoT, our startup company in India, has innovated on the old analogue design of a water meter and created a new product that uses ultrasonic sensors to monitor water flow with more than 98% accuracy accompanied with a digital app to monitor your water usage intuitively with a simple UI. The installation and usage of this technology is seamless and can greatly benefit both the common customer and larger organizations who wish to manage their water consumption. Finally, irrigation techniques such as drip irrigation technology efficiently controls the amount of water to land and can possibly relieve the water scarcity in India for decades.

Conclusion

The issue of water scarcity in India already has long reaching effects, some of which can already be seen today. Although some factors, such as city planning, cannot be immediately changed to solve this problem, new technologies can definitely help alleviate and possibly reduce the intensity of this issue in India. Though the government of India is finally investing more resources into solving this problem, it’ll take the cumulative effort of every single Indian citizen to conserve their own water, and the effort of the government to implement costly, yet effective, technology and infrastructure to distribute water evenly throughout the country. And with hope, this issue can be finally solved and put to rest.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

This article is published by: –https://www.wegot.in/blog/a-deeper-look-into-the-roots-of-water-crisis-in-india/

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Author:  Khushboo Vyas

Publish On: Jul 09, 2021