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GS Paper: GS1-08.Urbanisation:problems and remedies

  • The heavy rainfall and the crazy Banglore flood: A case to study

    floodContext

    • The recent events of heavy downpours in short period of time and the recent example of Banglore flood, highlights how cities in India and elsewhere need to adapt to climate change as it brings more extreme rainfall in the future.

    What is heavy downpour?

    • A downpour or cloudburst is a sudden and unexpected heavy fall of rain.
    • It is usually local in nature and of brief duration. Most so-called cloudbursts occur in connection with thunderstorms.
    • Heavy downpour in short period causes flood, damage to buildings and infrastructure can disrupt transport, communications and connectivity, loss of crops and livestock.

    The heavy rainfall and the Banglore flood causes

    • Rise in built up area: Lakes and natural depressions may not always fill up during many monsoons so the people who are unaware of hydrology tempts to build and buy in the catchment areas of water-bodies, which will be disastrous when it rains heavily as there is rise in the quantity.
    • Water-logging: rainwater and sewage water are forced to build up, which results in water-logging. The highway acts as a dam for the water ,Garbage frequently clogs drains, which limits the flow of sewage, and they are too small to support the weight of the expanding population.
    • Physical shrinkage of water-bodies: Destruction of lakes is a major issue .lakes can store the excess water and regulate the flow of water however the pollution of natural water bodies and converting them for development purposes has increased the risks of floods. Unplanned growth, Rise in population, rise in the built up areas along streams, canals, around the lakes, leaving no storage capacity.
    • Compromised runoff potential and health hazards: Choked and encroached drains and lakes, ill designed infrastructure and missing pipes compromising run off potential. Not only the physical quantity of the runoff that poses a hazard. When polluted drains and lakes overflow, the flood can pose a health hazard especially to vulnerable and exposed marginal communities living in informal settlements.
    • Zero or limited ability to allow infiltration of water: Encroachments in and around wetlands and green lands harming the natural way of water infiltration and ground water recharge.
    • Lack of vision in rain water harvesting: Ignorance towards the tradition rain water harvesting techniques and no or limited vision for creating new systems of rain water harvesting. Exceptionally heavy monsoon rains have been exacerbated by poor urban planning in the Indian tech hub, showing the need for improved water systems.

    floodWhat are the reasons behind the frequent floods in urban areas?

    • Meteorological factors: change in the weather patterns, increase in the temperature leading to heavy rainfall, sudden downpour, cloudburst, thunderstorms, hailstorms etc.
    • Hydrological factors: Natural surface infiltration rate, soil moisture level, presence or absence of Overbank flows, Presence of impervious cover, the occurrence of high tides impeding the drainage in coastal cities.
    • Man-Made factors:
      • Unplanned urbanization: Unplanned settlement is one of the main cause of urban flooding. Blocking of natural drainage pathways through construction activity and encroachment on catchment areas, streams, rivers, lakebeds. Reduced infiltration and ground water recharge of water, destruction of lakes, Land-use changes (e.g. surface sealing due to urbanization, deforestation) increase runoff and sedimentation. Inefficiency or non-maintenance of infrastructure etc.
      • Outdated Drainage systems: The old and ill-maintained drainage system is one of the main factor making cities in India vulnerable to flooding
      • Encroachments on and around water-bodies: Illegal Habitations started growing into towns and cities alongside rivers and watercourses. As a result of this, the capacity of the natural drains has decreased, resulting in flooding.
      • Climate Change: Climate change due to various anthropogenic events has led to extreme weather events, increasing temperature which resulting in heavy rainfall in one part while drought and dry spells in other.
      • Poor Solid Waste Management System: Indiscriminate disposal of solid waste, poor waste management system, clogging drains because of accumulation of non-biodegradable wastes are major concerns. Domestic, commercial and industrial waste and dumping of it into the drains also contribute significantly to reducing their capacities.
      • Reduced Seepage: use of hard and non-porous construction material making the soil impervious, reducing the seepage capability in no of cities in India.
      • Weak Implementation and lack of awareness:Even with provisions of rainwater harvesting, sustainable urban drainage systems, etc, in regulatory mechanisms like the Environmental Impact Assessment (EIA), adoption at user end as well as enforcement agencies remains weak.
      • No Community Participation:Flood control measures planned without participation of the affected community are unsustainable as they do not meet the needs of relevant stakeholders.

    What can be done to prevent the urban floods and prevent losses?

    • Developing climate Resilient Infrastructure: using permeable material for roads and pavement, green roofs and harvesting systems in buildings. To reduce the burden of road infrastructure in cities Outer Ring Road should be explored. Innovative approaches like Sponge Cities wetland restoration, flushing systems using collected rooftop water, public spaces as flexible water retention facilities can be applied to Indian urban areas.
    • Use of technology in Early Warning Systems and Communication: Early-warning systems using sensors across waterbodies and drains, and a network of communication for hotspots of emerging flood risk in the wet-season should be put in place. Providing real-time data where traditional systems fail. Tools such as predictive precipitation modelingcan help do that and are also able to link it with the adaptive capacity of urban land use.
    • Proper management and regular upgrade of Urban Drainage System: drains need to be cleaned on a regular basis to permit the free flow of water .Proper management of the drainage system is necessary to ensure that the water does not get stored in one place. Watershed management and emergency drainage plan should be clearly enunciated in policy.
    • Rainwater Harvesting: It will serve the twin purposes of lowering the peak runoff and raising the groundwater table. Many municipal corporations in India have already made rainwater harvesting compulsory. 
    • Conservation of Water Bodies: Urban water bodies like lakes, tanks, and ponds also play a very important role in the management of urban flooding by reducing the flood water run-off by capturing it.
    • Holistic approach: Improved monitoring, forecasting, and decision-support systems. Find out the different method for improving the preparedness for urban flooding.
    • Responsibility on every stakeholder: Locally, citizens, local ward officials and staff will need to work together to minimize dumping of solid waste and garbage in storm-water drains. As this is a socio –political problem, public participation awareness and responsibility of citizen is the need of the hour. To develop a long-lasting solution, all parties must acknowledge the issues and adopt a thorough strategy.

    What we as citizens can do on a personal level to prevent the urban environment?

    • Raising voice at all available forums and platforms
    • Making politicians and bureaucrats accountable
    • Refuse to buy a house in the encroached lands.
    • Applying methods of rain water harvesting on individual level.

    Way ahead

    • Exceptionally heavy monsoon rains have been exacerbated by poor urban planning in the Indian tech hub, showing the need for improved water systems.
    • Urbanization is a global and inevitable process, and with cities as engines of the economy, built-up areas will continue to grow. But we need to draw upon these experiences and the growing perils of climate change and extreme rain events and change course.
    • According to UN projections, by 2050 more than 68% of the world’s population could be concentrated in urban areas.
    • In this context, resilience-based strategies should be adopted to improve the capacity to handle the crisis arising out of climate change.
    • Wetlands are the kidneys of the earth, let’s keep it healthy.

     

    Mains Question

    Q. What are the factors causing flood in the urban cities? What are the measures to prevent the urban flooding keeping in mind the sustainable development? Discuss.

     

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  • Understanding the Olga Tellis Judgment

    A 37-year-old Constitution Bench judgment of the Supreme Court which held that pavement dwellers are different from trespassers. This may become a game-changer in the Jahangirpuri case.

    What is the Olga Tellis judgment?

    • The judgment, Olga Tellis vs. Bombay Municipal Corporation, was given in 1985 by a five-judge Bench led by then Chief Justice of India Y.V. Chandrachud (F/O Justice D.Y Chandrachud).
    • It is agreed that pavement dwellers do occupy public spaces in an unauthorized manner.

    Key takeaways of the Judgment

    • Opportunity to depart: The court maintained they should be given a chance to be heard and a reasonable opportunity to depart before force is used to expel them.
    • No use of force: The Supreme Court reasoned that eviction using unreasonable force, without giving them a chance to explain is unconstitutional.
    • Right to life: Pavement dwellers, too, have a right to life and dignity. The right to life included the right to livelihood. They earn a meagre livelihood by living and working on the footpaths.
    • No misuse of powers of eviction: A welfare state and its authorities should not use its powers of eviction as a means to deprive pavement dwellers of their livelihood.

    What led to the judgment?

    • Sometime in 1981, the State of Maharashtra and the Bombay Municipal Corporation decided that pavement and slum dwellers in Bombay city should be evicted and “deported to their respective places of origin or places outside the city of Bombay.”
    • Some demolitions were carried out before the case was brought to the Bombay High Court by pavement dwellers, residents of slums across the city, NGOs and journalists.
    • While they conceded that they did not have “any fundamental right to put up huts on pavements or public roads”, the case came up before the Supreme Court on larger questions of law.

    What were the questions discussed before the Supreme Court?

    • One of the main questions was whether eviction of a pavement dweller would amount to depriving him/her of their livelihood guaranteed under Article 21 of the Constitution.
    • The Article mandates that “no person shall be deprived of his life or personal liberty EXCEPT according to procedure established by law.”
    • The Constitution Bench was also asked to determine if provisions in the Bombay Municipal Corporation Act, 1888, allowing the removal of encroachments without prior notice, were arbitrary and unreasonable.
    • The Supreme Court also decided to examine the question whether it was constitutionally impermissible to characterise pavement dwellers as trespassers.

    What was the State government’s defence?

    • The State government and the corporation countered that pavement dwellers should be estopped (estoppel is a judicial device whereby a court may prevent or “estop” a person from making assertions.
    • Estoppel may prevent someone from bringing a particular claim from contending that the shacks constructed by them on the pavements cannot be demolished because of their right to livelihood.
    • They cannot claim any fundamental right to encroach and put up huts on pavements or public roads over which the public has a ‘right of way.’

    How did the Supreme Court rule?

    • The Bench threw out the government’s argument of estoppel, saying “there can be no estoppel against the Constitution.”
    • The court held that the right to life of pavement dwellers were at stake here.
    • The right to livelihood was an “integral component” of the right to life. They can come to court to assert their right.
    • If the right to livelihood is not treated as a part of the constitutional right to live, the easiest way of depriving a person of his right to life would be to deprive him of his means of livelihood to the point of abrogation.
    • Any aggrieved person can challenge the deprivation as offending the right to life.
    • Removal of encroachments without prior notice was arbitrary; the court held that such powers are designed to operate as an “exception” and not the “general rule.”
    • The procedure of eviction should lean in favour of procedural safeguards which follow the natural principles of justice like giving the other side an opportunity to be heard.
    • Finally, the court emphatically objected to authorities treating pavement dwellers as mere trespassers.
    • The encroachment committed are involuntary acts in the sense that those acts are compelled by inevitable circumstances and are not guided by choice.

    Way ahead

    • It is not a free choice to exercise as to whether to commit an encroachment and if so, where.
    • Trespassers should not be evicted by using force greater than what is reasonable and appropriate.
    • He/she should be asked and given a reasonable opportunity to depart before force is used to expel him.

     

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  • [pib] 6 years of Urban Transformation

    The Ministry of Housing and Urban Affairs (MoHUA) has commemorated 6 years of the three transformative Urban Missions vis. Smart Cities Mission (SCM), Atal Mission for Urban Rejuvenation and Urban Transformation (AMRUT) and Pradhan Mantri Awas Yojana-Urban (PMAY-U). All these missions were inaugurated in 2015.

    [A] Pradhan Mantri Awas Yojana – Urban (PMAY)

    • PMAY is an initiative in which affordable housing will be provided to the urban poor with a target of building 2 crore (20 million) affordable houses by 31 March 2022.
    • It has two components: for the urban poor and also for the rural poor.
    • This scheme is converged with other schemes to ensure houses have a toilet, Saubhagya Yojana electricity connection, Ujjwala Yojana LPG connection, access to drinking water, and Jan Dhan banking facilities, etc.

    [B] Atal Mission for Rejuvenation & Urban Transformation (AMRUT)

    • AMRUT was launched with the focus to establish an infrastructure that could ensure adequate robust sewage networks and water supply for urban transformation by implementing urban revival projects.
    • The components of the AMRUT consist of capacity building, reform implementation, water supply, sewerage and septage management, stormwater drainage, urban transport, and the development of green spaces and parks.
    • During the process of planning, the Urban Local Bodies (ULBs) will strive to include some smart features in the physical infrastructure components.
    • Rajasthan was the first state in the country to submit State Annual Action Plan under Atal Mission for Rejuvenation and Urban Transformation (AMRUT).

    [C] Smart Cities Mission

    • National Smart Cities Mission is an urban renewal and retrofitting program by the Government of India with the mission to develop smart cities across the country, making them citizen-friendly and sustainable.
    • The Union Ministry of Urban Development is responsible for implementing the mission in collaboration with the state governments of the respective cities.
    • All the participating cities from West Bengal have withdrawn from the Smart Cities Mission.
    • Mumbai and Navi Mumbai from Maharashtra have also been withdrawn from the Smart Cities Mission.

  • Delhi’s Master Plan 2041

    The Delhi Development Authority gave its preliminary approval to the draft Master Plan for Delhi 2041.

    What is the Master Plan 2041 for Delhi?

    • The draft of the Master Plan seeks to “foster a sustainable, liveable and vibrant Delhi by 2041”.
    • It includes analysis, recommendations, and proposals keeping in mind the population, economy, housing, transportation, community facilities, and land use.
    • The current master plan of Delhi — Master Plan 2021 — expires this year.
    • The first volume is an introduction, providing an overview of Delhi in present times, its global and regional positioning, estimates of population, and projections for 2041.
    • The draft MPD presents a plan for the city for the next 20 years.

    What are the main focus areas of the master plan?

    • In the housing sector, it talks about incentivizing rented accommodation by inviting private players and government agencies to invest more, keeping in mind the large migrant population.
    • It addresses parking problems and suggests a ‘user pays principle, which means users of all personal motor vehicles, except for non-motorized ones, have to pay for authorized parking facilities, spaces and streets.

    How does the master plan tackle environmental pollution?

    • The draft plan aims to minimize vehicular pollution through key strategies, including a switch to greener fuels for public transport and the adoption of mixed-use of transit-oriented development (also known as TOD).
    • It also addresses improving the quality of water, which is taken from the Yamuna river as well as various lakes, natural drains and baolis.
    • The draft lays a clear boundary of the buffer zone near the Yamuna river and explores how to develop it.
    • As per the plan, a green buffer of 300-metre width shall be maintained wherever feasible along the entire edge of the river.

    How is it different from the 2021 Master Plan?

    • The world has gone through a drastic change due to the pandemic, and the growing population has led to shrinking spaces and unemployment.
    • The 2041 plan aims to develop common community spaces to provide refuge spots, common kitchens and quarantine space in an emergency.
    • To improve the nighttime economy, the plan focuses on cultural festivals, bus entertainment, metro, sports facilities, and retail stores included in Delhi Development Authority (DDA)’s Night Life Circuit plan.
    • It also proposes to reduce vulnerability to airborne epidemics through decentralized workspaces, mandatory creation of open areas, better habitat design and green-rated developments to reduce dependence on mechanical ventilation systems.

    What challenges will its implementation face?

    • The master plan on paper looks like a perfect document for the city’s progress.
    • However, when the implementing agencies try to replicate it on the ground, they face challenges like confrontation from political wings, lack of resources and funds, corruption in different departments, lack of political and bureaucratic will and multiplicity of agencies.
    • For instance, despite talks of increasing surface parking, removing junk vehicles, imposing fines for dumping debris, garbage burning, and segregation of waste, a lot of these things could never be implemented.
    • In some cases like, increasing parking or increasing its charges, there is resistance from politicians due to vote-bank politics. In other cases, lack of funds and improper implementation mar the projects.

  • Cost and complications of transplanting a tree

    The Central Public Works Department (CPWD) wants to transplant over 1,800 trees which are inside what used to be the Indira Gandhi National Centre for the Arts (IGNCA) complex, as part of the Central Vista redevelopment project.

    Transplantation of trees

    • The transplantation of trees is a complex and delicate process whose outcome cannot be predicted.
    • A tree cannot be transplanted by simply uprooting it and placing it in a pit dug elsewhere. The process involves multiple steps and requires significant expertise.

    How it is done?

    • First, the soil around the tree is dug up to isolate the roots. The big branches are lopped off, leaving only small shoots for regeneration. This is done to make transportation of the tree to the new location easier.
    • The root system is covered with wet gunny bags to protect the roots and to keep the tree hydrated.
    • The tree has to be first sent to a nursery to acclimatize to a new kind of soil, and to regenerate.
    • Once new shoots start sprouting, the tree is lowered into a pit created in its new spot.

    What factors determine the success of a transplant?

    • Even after all steps are meticulously followed, a lot depends on luck. The survival rate of a transplanted tree is about 50%.
    • Not all trees can be transplanted. While peepal, ficus, semal and sheesham are tolerant to transplantation, trees such as dak, palash, arjun, shahtoot and jhilmil are not.

    (1) Roots

    • Any tree that has a tap root system cannot be transplanted, as the root goes deep into the soil, and it is not possible to isolate it without damage.

    (2) Size

    • Transplanting any tree with a trunk girth of more than 80-90 cm is not advisable as the tree cannot bear the shock, and will eventually die.

    (3) Age

    • That effectively means that big, old trees cannot, in most cases, be removed to another location.

    (4) Soil

    • It is important to consider soil type before transplantation.
    • A tree growing on, say, the Delhi Ridge will not easily acclimatize to the soil in the Yamuna floodplain, as the two ecosystems are entirely different.

    How expensive is transplantation?

    • The cost of transplanting an average-sized tree might come to around Rs 1 lakh, which included post-transplantation care.
    • For larger trees, the cost could go up to Rs 3 lakh.
    • Private and voluntary organizations, however, claim that the cost is between Rs 5,000 and Rs 10,000 per tree.

  • [pib] Ease of Living Index (EOLI) 2020

    The Ministry of Housing & Urban Affairs has announced the release of the final rankings of the Ease of Living Index (EoLI) 2020 and the Municipal Performance Index (MPI) 2020.

    For any such index, always note the verticals i.e. the various parameters.

    Ease of Living Index (EoLI)

    • It is an assessment tool that evaluates the quality of life and the impact of various initiatives for urban development.
    • It provides a comprehensive understanding of participating cities across India based on the quality of life, the economic ability of a city, and its sustainability and resilience.
    • It examines the outcomes that lead to existing living conditions through pillars of Quality of Life, Economic Ability, Sustainability.

    Municipal Performance Index (MPI)

    • It was launched as an accompaniment to the Ease of Living Index.
    • The five verticals under MPI are Services, Finance, Policy, Technology and Governance.
    • The Ease of Living Index encapsulates the outcome indicators while the Municipal Performance Index captures the enabling input parameters.

    Performance of cities

    • Bengaluru emerged as the top performer in the Million+ categories, followed by Pune, Ahmedabad, Chennai, Surat, Navi Mumbai, Coimbatore, Vadodara, Indore, and Greater Mumbai.
    • In the Less than Million category, Shimla was ranked the highest in ease of living, followed by Bhubaneshwar, Silvassa, Kakinada, Salem, Vellore, Gandhinagar, Gurugram, Davangere, and Tiruchirappalli.

    Why need such indices?

    • The EoLI primarily seeks to accelerate India’s urban development outcomes, including the achievement of the Sustainable Development Goals.
    • The findings from the index can help guide evidence-based policymaking.
    • It also promotes healthy competition among cities, encouraging them to learn from their peers and advance their development trajectory.

  • [pib] City Innovation Exchange (CiX)

    The City Innovation Exchange (CiX) platform was launched by the Ministry of Housing and Urban Affairs.

    City Innovation Exchange (CiX)

    • The CiX will connect cities to innovators across the national ecosystem to design innovative solutions for their pressing challenges.
    • The platform will ease the discovery, design & validation of solutions through a robust, transparent and user-centric process that will reduce barriers for innovators and cities to discover fitting solutions.
    • Built on the concept of ‘open innovation’, the platform will help in the flow of ideas ‘outside in and inside out, enhancing the skills and capacity required to deliver smart urban governance.
    • Through interaction with Academia and Businesses/Startups, the platform will benefit cities in the transfer of ideas from ‘labs’ to the real environment.
    • Similarly, by helping urban governments interact with citizens, the platform will ensure the adoption of tested solutions that will be impactful and sustainable.

    Benefits of CiX

    • The CiX platform will be a significant addition to the growing innovation ecosystem of India and focuses on fostering innovative practices in cities.
    • CiX, through an ‘open innovation’ process, engages with innovators to design-test-deliver on solutions to pressing urban challenges.
    • This initiative is among the ongoing efforts to realize PM’s vision of New and AtmaNirbhar Bharat, by making cities more self-reliant and enabled to meet the needs of and provide services to their citizens.
    • The platform in due time will help our cities in adopting solutions that will enhance the quality of life for their residents and significantly improve the Ease of Doing Business.

    Try this PYQ:

    Q.The Constitution (Seventy-Third Amendment) Act, 1992, which aims at promoting the Panchayati Raj Institutions in the country, provides for which of the following?

    1. Constitution of District Planning Committees.
    2. State Election Commissions to conduct all panchayat elections.
    3. Establishment of State Finance Commissions.

    Select the correct answer using the codes given below:

    (a) Only 1

    (b) 1 and 2 only

    (c) 2 and 3 only

    (d) 1, 2 and 3

  • India’s internal migration

    This newscard presents data on India’s internal migration considering the mass exodus which was visible during the lockdowns.

    The displacement of people during the imposition of lockdown has been described as the second-largest since the Partition of the country.

     

    Also read:

    [Burning Issue] Migrant workers amid COVID-19 outbreak

    India’s internal migration

    (1) Number of migrants

    • As of 2020, India has an estimated 600 million migrants. Roughly half of India is living in a place where it wasn’t born.
    • It would be roughly double the size of the fourth-largest nation on the planet — the United States.

    (2) Nature of migration

    • The bulk of the internal migration in India is within one district itself. An estimated 400 million Indians “migrate” within the district they live in.
    • The next 140 million migrate from one district to another but within the same state.
    • And only about 60 million — that is, just 10% of all internal migrants — move from one state to another.

    (3) Type of Migration

    • There are other misconceptions as well. Typically, it is thought that most migration happens when people from rural areas move to urban areas.
    • That is incorrect. The most dominant form of migration is from rural to rural areas.
    • Only about 20% of the total migration (600 million) is from rural to urban areas.
    • In fact, 20% of the total migration is from one urban area to another urban area.
    • As such, urban migration (rural to urban as well as urban to urban) accounts for 40% of the total migration.

    (4) Comparison with other countries

    • India’s proportion of internal migrants (as a percentage of the overall population) is much lower than some of the comparable countries such as Russia, China, South Africa and Brazil.
    • All have much higher urbanisation ratios, which is a proxy for migration level.
    • In other words, as India adopts a strategy of rapid urbanisation, levels of internal migration will increase further.

    Impact of COVID

    The reality of a migrant worker’s existence is much more complicated than those sharply defined numbers.

    Not all migrants were equally affected

    • The worst-hit were a class of migrants that felt under the group “vulnerable circular migrants”.
    • These are people who are “vulnerable” because of their weak position in the job market and “circular” migrants because even though they work in urban settings, they continue to have a foothold in the rural areas.
    • Such migrants work in construction sites or small factories or as rickshaw pullers in the city but when such employment avenues dwindle, they go back to their rural setting.
    • In other words, they are part of the informal economy outside agriculture.

    “Data insufficient”

    • The truth is that even now all the estimates mentioned above are individual estimates.
    • The official data — be it the Census or the National Sample Survey — is more than a decade old.
    • In fact, Census 2011 migration data was made publicly available only in 2019.

  • Jal Jeevan Mission (Urban) to revive urban water bodies

    The urban water supply mission under the Jal Jeevan Mission announced in the Budget would include rejuvenation of water bodies as well as 20% of supply from reused water.

    Access to safe drinking water has been a grave problem for India, especially in rural areas where lack of usable water has resulted in decades-old sanitation and health problems.

    Jal Jeevan Mission

    • Jal Jeevan Mission, a central government initiative under the Ministry of Jal Shakti, aims to ensure access of piped water for every household in India.
    • The mission’s goal is to provide to all households in rural India safe and adequate water through individual household tap connections by 2024.
    • The Har Ghar Nal Se Jal programme was announced by FM in Budget 2019-20 speech.
    • This programme forms a crucial part of the Jal Jeevan Mission.
    • The programme aims to implement source sustainability measures as mandatory elements, such as recharge and reuse through greywater management, water conservation, and rainwater harvesting.

    Urban component of the mission

    • The mission is meant to create a people’s movement for water, making it everyone’s priority.
    • There are an estimated gap of 2.68 crore urban household tap connections that the Mission would seek to bridge in all 4,378 statutory towns.
    • The Mission would also aim to bridge the gap of 2.64 crore sewer connections in the 500 cities under the existing Atal Mission for Rejuvenation and Urban Transformation (AMRUT).
    • The mission would include rejuvenation of water bodies to boost the sustainable freshwater supply and the creation of green spaces.

  • WWF Water Risk Filter

    Nearly a third of the 100 cities in the world susceptible to ‘water risk’ — defined as losses from battling droughts to flooding — are in India, according to the WWF Water Risk Filter.

    Try this question for mains:

    Q.For Indian cities to break away from the vicious loop of flooding and water scarcity, nature-based solutions like restoration of urban watersheds and wetlands could offer an alternative. Examine.

    What is Water Risk Filter?

    • This is an online tool, co-developed by the Worldwide Fund for Nature that helps evaluate the severity of risk places faced by graphically illustrating various factors that can contribute to water risk.
    • Launched in 2012, it is a practical online tool that helps companies and investors assess and respond to water-related risks facing their operations and investments across the globe.
    • After a major upgrade in 2018, the Water Risk Filter 5.0 enables companies and investors to Explore, Assess, Value and Respond to water risks.
    • Lately, the Water Risk Filter provides scenarios of water risks for 2030 and 2050, integrating climate and socio-economic changes in different pathways.

    Highlights of the recent analysis

    • It reported 30 Indian cities that would face a ‘grave water risk’ by 2050 due to a dramatic increase in their population percentage to 51 per cent by 2050, from 17 per cent in 2020.
    • Jaipur topped the list, followed by Indore and Thane. Mumbai, Kolkata and Delhi also featured on the list.
    • The global list includes cities such as Beijing, Jakarta, Johannesburg, Istanbul, Hong Kong, Mecca and Rio de Janeiro. China accounts for almost half the cities.

    Major recommendations

    • The future of India’s environment lies in its cities. As India rapidly urbanizes, cities will be at the forefront both for India’s growth and for sustainability.
    • For cities to break away from the current vicious loop of flooding and water scarcity, nature-based solutions like restoration of urban watersheds and wetlands could offer solutions.
    • Urban watersheds and wetlands are critical for maintaining the water balance of a city, flood cushioning, micro-climate regulation and protecting its biodiversity, the report notes.