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GS Paper: GS3-18.Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment.

  • A resilient future for Uttarakhand

    The article discusses the factors that could explain the cause of the recent flash floods in Uttarakhand and suggest the immediate steps to deal with such disasters.

    What makes Uttarakhand vulnerable

    • Days after a glacier burst in the Chamoli district of Uttarakhand caused flash floods, the scientific community is still struggling to understand what triggered the disaster.
    • Uttarakhand is located in the midst of young and unstable mountains and is subject to intense rainfall.
    • For years experts have voiced their fears about an impending disaster due to climate change, rapid and indiscriminate construction activities, and the subsequent ecological destruction in the region.
    • Studies have shown that widespread settlements, farming, cattle grazing and other anthropogenic activities could destroy the natural barriers that control avalanches and floods, thereby enhancing the possibilities of a glacial lake outburst flood.
    • The Hindu Kush Himalaya Assessment Report (2019) had pointed out that one-third of the Hindu Kush Himalaya’s glaciers would melt by 2100 and potentially destabilise the river regime in Asia, even if all the countries in the region fulfilled their commitments under the Paris Agreement.

    Possible causes of the current glacial outburst

    • The current glacier burst was loosely attributed to erosion, a build-up of water pressure, an avalanche of snow or rocks, landslides or an earthquake under the ice.
    • A rock mass, weakened from years of freezing and thawing of snow, may have led to the creation of a weak zone and fractures leading to a collapse that resulted in flash floods.

    Issue of construction activity

    • Experts and activists have incessantly asked for scrutiny into the construction of hydroelectric power projects in Uttarakhand.
    • There have also been allegations about the use of explosives in the construction of dams and other infrastructure.
    • In 2014, an expert committee led by Dr Ravi Chopra, instituted to assess the role of dams in exacerbating floods, provided hard evidence on how haphazard construction of dams was causing irreversible damage to the region.

    7 Immediate steps

    • 1) Investing in resilience planning, especially in flood prevention and rapid response.
    • 2) Climate proofing the infrastructure such as by applying road stabilisation technologies for fragile road networks and strengthening existing structures like bridges, culverts and tunnels.
    • 3) Strengthening embankments with adequate scientific know-how
    • 4) Reassessing development of hydropower and other public infrastructure.
    • 5) Investing in robust monitoring and early warning system.
    • 6) Establishing implementable policies and regulatory guidelines to restrict detrimental human activities, including responsible eco- and religious tourism policies.
    • 7) Investing in training and capacity building to educate and empower local communities to prevent and manage risks effectively.

    Consider the question “What are the factors that make Uttarakhand vulnerable to natural disasters? Suggest the measures to prevent and deal with the disasters” 

    Conclusion

    India needs to urgently rise up to the challenge by applying innovative and inclusive solutions that support nature and marginalised communities, to restore and rebuild a resilient future for Uttarakhand.

  • Role of dams in Uttarakhand floods

    The article explains the link between the disasters in the Uttarakhand and the construction of dams.

    How dams exacerbate disasters

    • The use of explosives has repeatedly been questioned for dam construction, and the construction of other infrastructure projects, such as roads, in the fragile Himalayan State.
    • Other than this, deforestation takes place when dams are constructed.
    • The construction material that is supposed to be dumped on separate land is often dumped into the rivers.

    The Chopra Committee report after Kedarnath flood

    • The Chopra Committee report of 2014 brings more clarity on how dams exacerbate a disaster such as floods.
    • Its report mentions how dams exacerbated the 2013 deluge, mainly as riverbeds were already raised from the disposed muck at the dam construction sites.
    • The report presents evidence to prove that dams are not only damaged in floods, they also cause immense damage in downstream areas.
    • This is because as floodwaters damage a barrage, they increase the destructive capacity of the water that flows downstream of the barrage.
    • In an affidavit submitted on December 5, 2014 in the Supreme Court, the Union Ministry of Environment, Forest and Climate Change acknowledged the adverse impact of dams in the 2013 floods.

    Impact of climate change and threat of earthquakes

    • Himalayan glaciers are receding and disintegrating as a result of climate change, and the snow cover in the Himalayas is also thinning.
    • Research shows an increase in number and volume of glacial lakes as a result of of increased temperatures.
    • For dams, this means rapid increase or decrease in the reservoir water level.
    • It also means that the projections on the life of a dam reservoir may not stand due to erratic events, such as floods, that could rapidly fill a reservoir with muck and boulders brought along with the floods.
    • In terms of earthquake risk, Uttarakhand lies in Seismic Zone-IV (severe intensity) and Seismic Zone-V (very severe intensity).
    • Ignoring this, many dams have been constructed in zones that are under high risk of witnessing severe earthquakes.

    Consider the question “Examine the role played by the dams in exacerbating the disasters in the Himalayan states”

    Conclusion

    It is clear that dams worsen disasters, and for this to be ignored by the State authorities is unfortunate.

  • Why hydel projects in the Himalayas are worrying?

    The flash flood that claimed several lives in Chamoli has caused Uttarakhand’s hydroelectric projects (HEPs) to be scrutinized closely.

    Q.How do hydropower projects pose geological and topographical threats to the ecosystem? (150W)

    Why Hydropower in Uttarakhand?

    • Uttarakhand has a tricky relationship with electricity.
    • With a landscape that’s inhospitable to thermal power grid lines and with people too poor to pay for electricity, micro and mini hydro-electric power projects were seen as the answer.
    • Between the government’s long-standing ‘power for all’ objective, and environmentalists pushing for a cleaner, renewable energy, setting up dozens of hydel power plants seemed ideal.

    Impacts of HEPs

    Limitless quarrying, deforestation, stopping the flow of rivers, and mushrooming of hydropower projects have made the Himalayas unstable.

    • Existing and under-construction hydro-power projects in Uttarakhand have led to several deleterious environmental impacts (Char Dham Committee).
    • Among the significant impacts are on the river ecosystem, forest and terrestrial biodiversity, geological environment and social infrastructure.
    • More than seven years later, some experts believe that over-exploitation of rivers and rampant damming for hydroelectric projects (HEPs) could be one of the big factors responsible for the Chamoli disaster.
    • The ‘river-bed profile’ across the major HEPs of Uttarakhand has changed significantly, suggesting the possibility of disasters in future.

    The Kedarnath floods

    • Between June 13 and 17, 2013, Uttarakhand had received an unusual amount of rainfall.
    • This led to the melting of the Chorabari glacier and the eruption of the Mandakini river.
    • The floods affected large parts of Uttarakhand, Himachal Pradesh and Western Nepal.
    • The heavy rainfall caused massive flash floods and landslides resulting in the death of residents and tourists as well as extensive damage to property.
    • Over 5,000 people were killed in the floods

    Construction still persists

    • Neglecting all warnings of the experts, rampant construction was carried out in the sensitive zones even after the 2013 Kedarnath deluge.
    • Notably, two dozen hydropower plants of Uttarakhand were rejected by the Supreme Court after the expert panel report.

    HEPs in Uttarakhand

    The rivers and basins in the state are dotted with 43 micro hydel projects. Some of them are:

    Alarms have been raised earlier

    • The Kedarnath expert committee had warned about the excessive exploitation of vulnerable regions and the need to re-study and re-evaluate the HEPs of Uttarakhand.
    • The report also objected to HEPs at an altitude of over 2000 metres.
    • The report pointed out that the potential threat of landslide, cloudburst, subsidence, flash floods has increased tremendously in the past few years and many critical zones need immediate attention.
    • The study also mentioned that a lot of anthropogenic pressure due to different activities related to HEPs was alarming and needed checks.

  • [pib] Scheme for Management of Crop Residues

    The Scheme on ‘Promotion of Agricultural Mechanization for In-Situ Management of Crop Residue in the States of Punjab, Haryana, Uttar Pradesh and NCT of Delhi’ has been extended for the year 2021-22.

    We can cite the example of this scheme for crop residue management as an effective solution against stubble burning.

    Management of Crop Residues

    • In pursuance this, a central sector scheme (100% funded by centre) was launched in 2018 Budget to support the efforts of the governments of Haryana, Punjab, Uttar Pradesh and the NCT of Delhi to address air pollution.
    • It aimed to subsidize the machinery required for in-situ management of crop residue.

    Various objectives of the scheme:

    • Protecting the environment from air pollution and preventing loss of nutrients and soil micro-organisms caused by burning of crop residue;
    • Promoting in-situ management of crop residue by retention and incorporation into the soil through the use of appropriate mechanization inputs and
    • Creating awareness among stakeholders for effective utilization and management of crop residue

    Outcomes of the scheme

    • The residue burning events in 2020 in Punjab, Haryana and UP together have reduced by -30% as compared to 2016.
    • In Punjab the reduction is -22.7%, Haryana – 63.8% and UP – 52.01%.

  • [pib] India gets its first Centre for Wetland Conservation and Management

    The Ministry of Environment, Forest and Climate Change has announced the establishment of a Centre for Wetland Conservation and Management (CWCM).

    What are Wetlands?

    • A wetland is a distinct ecosystem that is flooded by water, either permanently or seasonally, where oxygen-free processes prevail.
    • The primary factor that distinguishes wetlands from other landforms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil.
    • Wetlands provide a wide range of important resources and ecosystem services such as food, water, fibre, groundwater recharge, water purification, flood moderation, erosion control and climate regulation.

    Ecological significance of wetlands

    • Wetlands provide a wide range of important resources and ecosystem services such as food, water, fibre, groundwater recharge, water purification, flood moderation, erosion control and climate regulation.
    • They are, in fact, a major source of water and our main supply of fresh water comes from an array of wetlands which help soak rainfall and recharge groundwater.
    • Just as forests are called the ‘lungs of the earth’, wetlands are the ‘kidneys’ that regulate water and filter waste from the landscape.

    About CWCM

    • WCM would serve as a knowledge hub and enable exchange between State/ UT Wetland Authorities, wetland users, managers, researchers, policy-makers and practitioners.
    • It would function as a part of the National Centre for Sustainable Coastal Management (NCSCM), Chennai.
    • It would address specific research needs and knowledge gaps and will aid in the application of integrated approaches for conservation, management and wise use of the wetlands.

    Why need such a centre?

    • India has nearly 4.6% of its land as wetlands, covering an area of 15.26 million hectares and has 42 sites designated as Wetlands of International Importance (Ramsar Sites), with a surface area of 1.08 million hectares.
    • The year 2021 also commemorates the 50th anniversary of the signing of the Ramsar Convention on Wetlands on 2 February 1971 in Ramsar, Iran, celebrated annually as World Wetlands Day.

    Back2Basics: Ramsar Convention

    • The Convention on Wetlands of International Importance (better known as the Ramsar Convention) is an international agreement promoting the conservation and wise use of wetlands.
    • It is the only global treaty to focus on a single ecosystem.
    • The convention was adopted in the Iranian city of Ramsar in 1971 and came into force in 1975.
    • Traditionally viewed as a wasteland or breeding ground of disease, wetlands actually provide fresh water and food and serve as nature’s shock absorber.
    • Wetlands, critical for biodiversity, are disappearing rapidly, with recent estimates showing that 64% or more of the world’s wetlands have vanished since 1900.
    • Major changes in land use for agriculture and grazing, water diversion for dams and canals and infrastructure development are considered to be some of the main causes of loss and degradation of wetlands.

    Enthusiasts can read this document:

    Faunal Diversity in Ramsar Wetlands of India

  • Limited success of the Green India Mission

    The central government’s afforestation scheme, Green India Mission (GIM), was able to only achieve 2.8 per cent of its plantation target, according to the Economic Survey 2021.

    Try this PYQ:

    Q.Consider the following statements:

    1. As per law, the Compensatory Afforestation Fund Management and Planning Authority exists at both National and State levels.
    2. People’s participation is mandatory in the compensatory afforestation programmes carried out under the Compensatory Afforestation Fund Act, 2016.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 only

    (c) Both 1 and 2

    (d) Neither 1 nor 2

    Green India Mission

    • GIM is one of the eight Missions outlined under India’s action plan for addressing the challenge of climate change -the National Action Plan on Climate Change (NAPCC).
    • Launched in February 2014, it is aimed at protecting; restoring and enhancing India’s diminishing forest cover and responding to climate change by a combination of adaptation and mitigation measures.
    • The mission has the broad objective of both increasing the forest and tree cover by 5 million ha,  as well as increasing the quality of the existing forest and tree cover in 10 years.
    • The Mission proposes a holistic view of greening and focuses not on carbon sequestration targets alone, but also, on multiple ecosystem services, especially, biodiversity, water, biomass etc., along with provisioning services like fuel, fodder, timber and non-timber forest produces.
    • It will also increase options of forest-based livelihood of households living in the fringe of those landscapes where the Mission is implemented.

    Limited success of the scheme

    • As of March 2020, plantation under the scheme was undertaken only over 0.14 m ha land.
    • A 2018 parliamentary committee report on GIM found that the scheme was grossly underfunded.
    • The report found that the scheme had also missed its targets by 34 per cent in both 2015-16 and 2016-17 financial years.
    • The committee also pointed out that the afforestation done under the mission was only aimed at increasing tree count without considering the soil and weather conditions.
    • Trees like eucalyptus were planted which make environmental problems worse rather than solving it.
    • Planting of unsuitable trees may cause drought and prevent biodiversity in the regions.

  • National Marine Turtle Action Plan

    The Ministry of Environment Forest and Climate Change (MoEFCC) has launched the National Marine Turtle Action Plan.

    Do you know?

    Most people use the term “turtle” to reference any reptile with a shell on its back, but there are several differences between these two unique creatures. In actual sense tortoises are turtles, but not all turtles are tortoises.

    Tortoises have more rounded and domed shells where turtles have thinner, more water-dynamic shells.  Turtle shells are more streamlined to aid in swimming. One major key difference is that tortoises spend most of their time on land and turtles are adapted for life spent in water.

    National Marine Turtle Action Plan

    Aim: To strengthen and sustain collective and collaborative sea turtle conservation through the monitoring of key sites and a network of partners in the Indian sub-continent

    Project details

    • The project contains ways and means to not only promote inter-sectoral action for conservation but also guide improved coordination amongst the government, civil society and all relevant stakeholders.
    • It highlights actions to be taken for handling stranded animals on the shore, stranded or entangled animals in the sea or on a boat, reducing threats to marine species and their habitats, rehabilitation, etc.

    Why need such a project?

    • India has rich marine biodiversity along a vast coastline of over 7,500 km.
    • It has significant  nesting  and  feeding  grounds  for  four  species  of  marine  turtles,  namely  leatherback  (Dermochelys  coriacea),  green  (Chelonia  mydas), hawksbill (Eretmochelys  imbricata)  and  olive  ridley  (Lepidochelys  olivacea)
    • Even though all four species are listed under Schedule I  of the  Indian  Wild  Life  (Protection)  Act,  1972,  their populations in the  Indian waters are under threat.

  • Places in news: Sundarban Biosphere Reserve

    Indian Sunderbans, which is part of the largest mangrove forest in the world, is home to 428 species of birds, a recent publication of the Zoological Survey of India (ZSI) States.

    Sundarban Biosphere Reserve

    • Sundarbans is the largest delta and mangrove forest in the world.
    • The Indian Sunderbans, which covers 4,200 sq km, comprises of the Sunderban Tiger Reserve of 2,585 sq km is home to about 96 Royal Bengal Tigers (2020) is also a world heritage site and a Ramsar Site.
    • The Indian Sunderbans is bound on the west by river Muriganga and on the east by rivers Harinbhahga and Raimangal.
    • Other major rivers flowing through this eco-system are Saptamukhi, Thakuran, Matla and Goasaba.
    • Recent studies claim that the Indian Sundarban is home to 2,626 faunal species and 90% of the country’s mangrove varieties.

    What is the latest research?

    • The scientists have listed 428 birds, some, like the Masked Finfoot and Buffy fish owl, are recorded only from the Sunderbans.
    • India has over 1,300 species of birds and if 428 species of birds are from Sunderbans.
    • The area is home to nine out of 12 species of kingfishers found in the country as well rare species such as the Goliath heron and Spoon-billed Sandpiper.

    Try this PYQ:

    With reference to India’s biodiversity, Ceylon frogmouth, Coppersmith barbet, Gray-chinned miniyet and White-throated redstart are–

    (a) Birds

    (b) Primates

    (c) Reptiles

    (d) Amphibians

  • What is Nitrogen-Use Efficiency (NUE)?

    A group of Indian scientists have found a way to improve crops by reducing wastage of nitrogen fertilizers applied to them.

    Try this PYQ:

    Q.Which of the following adds/add nitrogen to the soil?

    1. Excretion of Urea by animals
    2. Burning of coal by man
    3. Death of vegetation

    Select the correct answer using the code given below:

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2, and 3

    Nitrogen-Use Efficiency

    • NUE is calculated as a ratio between nitrogen used and harvest: A higher number denotes low wastage.
    • With the efficiency on the decline, farmers use more fertiliser in the hope of raising yield. This in turn worsens NUE.
    • Crops generally use up 30 per cent of nitrogen fertilizer applied; the rest seeps into the environment, harming health and adding to climate change.
    • Researchers were able to identify phenotypes or visibly identifiable features that determine the efficiency with which cultivated rice varieties (cultivars) use nitrogen.
    • This efficiency is known as nitrogen-use efficiency (NUE).
    • Cereals consume over 69 per cent of nitrogen fertilizers in India; rice tops the list with 37 per cent, followed by wheat (24 per cent).

    Nitrogen Pollution: the reason behind

    • Agriculture leads to 70 per cent of nitrous oxide emissions in India.
    • Of this, 77 per cent is contributed by fertilizers, mostly urea, according to the Indian Nitrogen Assessment published in 2017.
    • This greenhouse gas (GHG) is 300 times more potent than carbon dioxide.
    • It has replaced methane as the second-largest component of GHG emissions from Indian agriculture in the past 15 years.

    Must read:

    [Burning Issue] Nitrogen Pollution in India

  • Issues with treating mineral sale proceeds as revenue or income

    The rate at which we are extracting mineral and spending the proceeds from it without consideration for the future generation needs a rethink. The article deals with this issue.

    The principle of Intergenerational Equity

    • We cannot compromise the ability of future generations to meet their needs, and this is reflected in the aim for the sustainable economy.
    • The principle of Intergenerational Equity would make it imperative for us to ensure future generations inherit at least as much as we did.
    • If we are successful in abiding by intergenerational equity, our children will be at least as well off as we are.

    Issues with our mineral policy

    • India’s National Mineral Policy 2019 states: “natural resources, including minerals, are a shared inheritance where the state is the trustee on behalf of the people to ensure that future generations receive the benefit of inheritance.”
    • The extraction of oil, gas, and minerals is effectively the sale of this inheritance.
    • Unfortunately, governments everywhere treat the mineral sale proceeds as revenue or income which is basically a sale of inherited wealth.
    • This results in governments selling minerals at prices significantly lower than what they are worth, driven by lobbying, political donations, and corruption.

    Error in accounting

    • Proceeds received by the government are treated as “revenue” and spent.
    • This is just not sustainable.
    • There is growing empirical evidence of large losses in mining from around the world.
    • There is also growing evidence from the International Monetary Fund that many governments of resource-rich nations face declining public sector net worth, i.e., their governments are becoming poorer.
    • Due to the high profits involved, the extractors are keen to extract as quickly as possible and move on.
    • More mining would make a bad situation significantly worse.
    • The Government Accounting Standards Advisory Board needs to correct this error in the standards for public sector accounting and reporting for mineral wealth.

    Way forward

    • If we extract and sell our mineral wealth, the explicit objective must be to achieve zero loss in value; the state as trustee must capture the full economic rent.
    • Any loss is a loss to all of us and our future generations, and makes some rich; that is patently unfair.
    • India’s National Mineral Policy 2019 says: “State Governments will endeavor to ensure that the full value of the extracted minerals is received by the State.”
    • Like Norway, the entire mineral sale proceeds must be saved in a Future Generations Fund.
    • The Future Generations Fund could be passively invested through the National Pension Scheme framework.
    • The real income of a fund of this nature may be distributed only as a citizens’ dividend, equally to all as owners.
    • For the Indian economy, this is sustainable — capital has been maintained; the savings rate would rise, making available more long-term domestic capital; it diversifies risk while likely improving returns.

    Consider the question “What are the issues with our mining policies? Suggest the changes to make it more sustainable.”

    Conclusion

    Through these changes, let us be the generation that changes the course of history for the better, not the one that consumed the planet.