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

  • India’s Air Quality Management needs Transboundary Accountability

    airshed

    Central Idea

    • The annual recurrence of ‘severe’ air quality levels in the Delhi-National Capital region and surrounding areas during winter often leads to the misconception that air pollution is a seasonal issue primarily driven by farm residue burning.
    • However, this perception falls short of the complex, year-round, multi-source, and multi-pollutant nature of the problem.

    This article highlights the need to adopt a comprehensive, science-backed approach to address air pollution effectively.

    Year-round, Multi-source Pollution

    • Misconception: Labelling air pollution as a ‘winter’ problem caused solely by farm residue burning oversimplifies the issue.
    • Complex Reality: Air pollution is a continuous problem arising from various sources, not confined to a particular season.
    • Ineffectiveness of City-Centric Strategies: Current initiatives like the National Clean Air Programme (NCAP) focus on cities, ignoring the transboundary nature of pollution.

    Transboundary Air Pollution

    • Understanding Dispersion: Pollution emitted in one region can significantly impact air quality in another due to transboundary dispersion.
    • Inter-state Implications: Weather, topography, and climatic conditions influence transboundary dispersion, creating challenges for downwind regions.
    • Limited Jurisdictional Power: Downwind regions often lack the authority to regulate upwind pollution sources, rendering mitigation strategies ineffective.

    Need for Airshed Air Pollution Management

    • Defining Airsheds: An airshed is a geographic area governed by common meteorology, topography, and climate, impacting air mass dispersion.
    • Global Precedents: Countries like the United States, China, and the European Union have implemented effective regional airshed-level frameworks.

    Policy Levers in India

    • Existing Legal Framework: The Commission for Air Quality Management in National Capital and Adjoining Areas (CAQM) Act, 2021 recognizes the transboundary nature of air pollution.
    • Expanding Scope: The Air Act, 1981, can be expanded to cover multiple jurisdictions and pollution sources under a single air quality management framework.
    • Global Experiences: Drawing lessons from frameworks like the Cross-State Air Pollution Rule (CSAPR) in the US and the Long Range Transboundary Air Pollution (LRTAP) in Europe can inform India’s approach.

    Implementation Challenges

    • Accountability: Holding upwind polluting regions accountable for transboundary pollution remains a challenge, necessitating legal mechanisms and cooperation.
    • Conflict Resolution: Implementing a formal procedure for resolving conflicts arising from the interpretation or application of airshed-level frameworks is crucial.
    • Political Will: Ensuring consistent implementation of air quality management measures despite bureaucratic cycles and political considerations is a persistent challenge.
    • Cross-Boundary Cooperation: Encouraging cooperation between jurisdictions and regions to collectively address air pollution requires coordinated efforts.
    • Data Integration: Integrating data from diverse sources and ensuring uniformity in air quality monitoring can be challenging.

    Way Forward

    • Legal Framework Expansion: Expanding the scope of the Air Act, 1981, to encompass multiple jurisdictions and pollution sources under a single air quality management framework.
    • Global Lessons: Drawing lessons from international frameworks like the Cross-State Air Pollution Rule (CSAPR) and Long Range Transboundary Air Pollution (LRTAP) to inform India’s approach.
    • Accountability Measures: Legally binding upwind polluters to address transboundary pollution through mitigation plans.
    • Scientific Independence: Separating scientific and technical activities from political negotiations to ensure data-driven decisions.
    • Conflict Resolution Mechanism: Implementing a mechanism for resolving disputes arising from framework interpretation or application.
    • Promoting Change: Integrating an airshed-level framework within existing legal structures or introducing a new framework to deliver cleaner air for citizens.

  • Delhi Odd-Even Scheme: Emergency Traffic Restrictions

    odd-even scheme

    Central Idea

    • The Odd-Even scheme, designed to reduce vehicular emissions and combat severe air pollution in Delhi, has garnered attention and scrutiny.
    • While this emergency action has been implemented in response to deteriorating air quality, experts emphasize that it may not be a panacea for all pollution woes.

    Odd-Even Scheme

    • Reduction in Vehicles: The scheme aims to curtail vehicular pollution by restricting the number of cars on the road. However, it has limitations, as it excludes two-wheelers and taxis, which are significant contributors to emissions.
    • Two Aspects of Transport Pollution: Transport pollution encompasses emissions from exhaust tailpipes and wear and tear of tires and brakes. Tailpipe emissions contain pollutants like PM2.5, soot, organics, nitrogen oxides, carbon monoxide, and poly-aromatic hydrocarbons.

    Why such move?

    • Curbing Local Sources of Pollution: Transport is a dominant source of pollutants when considering Delhi’s local emissions. Vehicles play a crucial role in exacerbating air quality issues.
    • Complex Challenges: Estimating the scheme’s exact impact on pollution levels is challenging due to multiple factors, including emissions from outside Delhi, restricted coverage of the transport fleet, and exemptions.

    Prior Experience and Expert Opinions

    • Experience from 2016: A study conducted on the Odd-Even scheme implemented in January 2016 indicated limited success in mitigating air pollution. PM2.5 levels decreased marginally in specific areas but not significantly citywide.
    • Comprehensive Approach Needed: Experts argue that while the Odd-Even scheme can contribute to pollution reduction, it should be viewed as one element of a comprehensive strategy, combined with measures like construction halts, during periods of stagnant air.
    • Not a Silver Bullet: Emergency actions, including the Odd-Even scheme, cannot independently solve air quality issues, and their effectiveness is influenced by various factors.

    Assessing Impact Based on Pollution Concentration

    • Air Quality Index (AQI) May Not Tell the Full Story: Experts emphasize the importance of considering pollutant concentration levels rather than relying solely on the Air Quality Index (AQI) for assessing the scheme’s impact.
    • Concentration Matters: Monitoring the concentration of pollutants provides a clearer picture of the scheme’s effectiveness in reducing harmful substances in the air.

    Transportation Role in Delhi’s Pollution

    • Contributor to Emissions: Transport, including vehicles and cars, is a substantial contributor to PM2.5 emissions in Delhi, accounting for a significant portion of the pollution.
    • Role of Four-Wheeler Cars: Four-wheeler cars contribute about 8% of emissions within the transport sector. Reducing their presence on the road can make a notable difference.

    Lessons from Other Cities

    • Global Precedents: Other major cities, such as Beijing and Paris, have implemented vehicle restrictions to address pollution issues.
    • Comprehensive Measures: The success of such schemes often depends on their comprehensive nature and alignment with specific local conditions.

    Conclusion

    • The Odd-Even scheme in Delhi serves as a critical emergency measure to combat air pollution during periods of severe deterioration.
    • While it can contribute to reducing vehicular emissions, experts emphasize that it should be part of a broader strategy that addresses multiple pollution sources.
    • Analyzing pollutant concentration levels provides a more accurate assessment of the scheme’s impact, and it is crucial to view it in conjunction with other measures to ensure sustained improvements in air quality.

  • Delhi AQI worsens to ‘Severe Plus’

    Central Idea

    • As Delhi-NCR and its environs grapple with worsening air pollution, the Air Quality Index (AQI) has gained prominence as a critical measure of air quality.

    Understanding Air Quality Index (AQI)

    • AQI measures how safe the air around you is for breathing. Organizations that report AQI measure the density of various pollutants in the air (such as PM2.5, PM10, nitrogen dioxide, ozone, etc) at different monitoring stations.
    • The widely-used National Air Quality Index (NAQI) given by the Central Pollution Control Board is a 24-hour average.
    • Its unit is micrograms per cubic meter.
    • A particular amount of one pollutant may not be as harmful as the same amount of another pollutant.
    • So, each pollutant’s quantity in the air is adjusted to a common scale (say, 0 to 500) that works for all pollutants.
    • Finally, the pollutant with the worst sub-index determines the AQI for that time and location.

    Air Pollutants covered:

    • Sulphur Dioxide (SO2)
    • Nitrogen Dioxide (NO2),
    • Particulate Matter (size less than 10 µm) or PM 10
    • Particulate Matter (size less than 2.5 µm) or PM2.5
    • Ozone (O3)
    • Carbon Monoxide (CO)
    • Ammonia (NH3)

    (Pollutants that most of us NEVER heard of-)

    • Lead
    • Benzene (C6H6)
    • Benzo(a)Pyrene (BaP)
    • Arsenic(As)
    • Nickel (Ni)

    Influence on Government Policy

    • Graded Response Action Plan (GRAP): AQI plays a pivotal role in shaping government policies to combat air pollution. When AQI levels in areas like Delhi-NCR deteriorate, emergency measures, such as Stage 3 of GRAP, are activated.
    • Immediate Action: For instance, the recent dip in AQI to the ‘severe’ category prompted immediate actions. Diesel four-wheelers not meeting BS-VI compliance were prohibited, and truck entry into Delhi was restricted. Petrol cars continued to operate under regular conditions.

    About Graded Response Action Plan (GRAP)

    • The GRAP was conceived as a response to the alarming findings of a WHO study in 2014, which ranked Delhi as the most polluted city globally.
    • In 2016, the Supreme Court (M. C. Mehta vs. Union of India Case) approved GRAP after multiple expert consultations.
    • First GRAP was notified in January 2017 by the Ministry of Environment, Forest and Climate Change.

    Implementation

    • Starting in 2021, the Commission for Air Quality Management in NCR & Adjoining Areas (CAQM) has taken over the responsibility of implementing GRAP.
    • Prior to 2021, the Supreme Court-appointed EPCA would instruct states to enforce GRAP measures.
    • In 2020, the EPCA was disbanded and substituted with the Commission for Air Quality Management (CAQM).
    • The CAQM recommendations depend on the Air Quality Index (AQI) and meteorological predictions provided by the Indian Institute of Tropical Meteorology (IITM) and the India Meteorological Department (IMD).

    Revised measure implemented

    Air Quality Stage Range Measures to be implemented
    Stage I (Poor) 201-300 Enforce NGT/Supreme Court’s order on over-aged diesel/petrol vehicles.
    Stage II (Very Poor) 301-400 Implement rigorous actions to combat air pollution at identified hotspots.
    Stage III (Severe) 401-450 Impose strict restrictions on BS III petrol and BS IV diesel vehicles. Suspend physical classes in schools for primary grade children up to Class 5 in certain areas.
    Stage IV (Severe Plus) >450 Prohibit the entry of four-wheelers registered outside Delhi, except for electric vehicles, CNG vehicles, and BS-VI diesel vehicles.

     

  • Biosphere reserves are evolving as pockets of hope

    Central idea 

    World Biosphere Reserve Day on November 3 emphasizes the global importance of UNESCO-designated reserves in conserving biodiversity and mitigating climate change. With 748 reserves in 134 countries, challenges like deforestation persist, necessitating local collaboration, sustainable tourism, and international cooperation for effective conservation.

    Key Highlights:

    • World Biosphere Reserve Day: Annual celebration on November 3 to raise awareness and promote the conservation of biosphere reserves.
    • UNESCO Designation: Biosphere reserves designated by UNESCO for biodiversity conservation, sustainable development, and research.
    • Global Impact: 748 biosphere reserves in 134 countries, influencing the lives of over 250 million people.
    • Transboundary Collaboration: 22 transboundary sites fostering cooperation between neighboring countries.

    Key Organizations:

    • UNESCO (United Nations Educational, Scientific and Cultural Organization): Initiator and supporter of the Man and the Biosphere (MAB) Programm Designates and recognizes biosphere reserves globally, promoting conservation and sustainable development.
    • United Nations Development Programme (UNDP): Collaborates with biosphere reserves to support sustainable development initiatives.
    • United Nations Environment Programme (UNEP): Engages in activities to enhance environmental sustainability within biosphere reserves.
    • International Union for Conservation of Nature (IUCN): Supports UNESCO in biodiversity conservation efforts and sustainable development.
      Prelims focus

      UNESCO MAB Award:

        • The Gulf of Mannar Biosphere Reserve Trust received the UNESCO Michel Batisse Award for Biosphere Reserve Management in 2023, recognizing exemplary efforts in conservation.

      Origin of Man and the Biosphere (MAB) Programme:

       

      Inception: Established by UNESCO (United Nations Educational, Scientific and Cultural Organization) in 1971.

      Inspiration: Evolved from the recommendations of the International Biological Programme (IBP), recognizing the need for a comprehensive approach to address the human-environment relationship.

      MAB’s Foundation: Launched during the 16th session of the UNESCO General Conference in 1971, with the primary goal of integrating natural and social sciences for sustainable development and biodiversity conservation.

      Key Drivers: Emerged as a response to growing concerns about the impact of human activities on the environment and the need for a coordinated effort to balance conservation and development.

       

       

    Challenges and Concerns:

    • Anthropogenic Pressures: Human-induced pressures on biosphere reserves, such as pollution, habitat destruction, and overexploitation, pose significant threats to biodiversity.
    • Climate Change Impact: The increasing impacts of climate change, including rising temperatures and extreme weather events, challenge the resilience of biosphere reserves and their ability to support diverse ecosystems.
    • Lack of Funding: Many biosphere reserves face financial constraints, hindering effective conservation efforts and the implementation of sustainable development projects. Adequate funding is crucial for long-term success.
    • Deforestation, invasive species, and land use changes like mining pose significant challenges.
    • Urbanization and population growth contribute to increased exploitation.

    Analysis:

    • Role as Carbon Sinks: Biosphere reserves play a crucial role as carbon sinks, absorbing carbon dioxide and contributing to climate change mitigation.
    • Economic and Biodiversity Significance: Provide a foundation for sustainable economic development and protect diverse biodiversity.

    Key facts:

    • World Biosphere Reserve Day: Celebrated on November 3 annually to raise awareness about biosphere reserves.
    • Biosphere Reserves Globally: Currently, 748 biosphere reserves across 134 countries.
    • Transboundary Sites: 22 transboundary biosphere reserve sites, fostering cooperation between neighboring countries.
    • Global Impact: Biosphere reserves impact the lives of over 250 million people in 134 countries.
    • Local Initiatives: Examples include the Sundarban Biosphere Reserve in India, where local communities manage mangrove forests, and the Gulf of Mannar Biosphere Reserve, introducing ‘plastic checkpoints’ for waste management.

    Key Terms:

    • Biosphere Reserves: Designated by UNESCO for conservation, sustainable development, and research.
    • Carbon Sinks: Areas like forests and the ocean that absorb carbon dioxide from the atmosphere.
    • World Biosphere Reserve Day: Annual celebration on November 3 to raise awareness about biosphere reserves.

    Way Forward:

    • Local Collaboration for Conservation: Emphasize the importance of local collaboration for effective conservation efforts. Encourage the active involvement of local communities in biodiversity protection and sustainable practices.
    • Addressing Specific Threats: Develop targeted strategies to address diverse threats such as deforestation, invasive species, and land use changes. Implement policies and practices that mitigate the impact of urbanization and population growth on biosphere reserves.
    • Promoting Sustainable Tourism: Encourage sustainable tourism practices within biosphere reserves to minimize negative environmental impacts. Educate tourists and local communities about responsible tourism to ensure the long-term well-being of these ecosystems.
    • International Cooperation: Strengthen international cooperation for the conservation of transboundary biosphere reserves. Facilitate knowledge exchange and collaborative initiatives to address global environmental challenges.

    This World Biosphere Reserve Day serves as a crucial moment to reflect on the significance of these natural treasures and the collective responsibility to ensure their preservation for future generations.

  • In news: Mhadei Wildlife Sanctuary (WLS)

    Mhadei Wildlife Sanctuary

    Central Idea

    • The Goa bench of the Bombay High Court issued directives to the Goa government, compelling the establishment of a tiger reserve within Mhadei Wildlife Sanctuary (WLS).
    • The National Tiger Conservation Authority (NTCA) had identified Goa’s Cotigao-Mhadei forest complex, which encompasses several protected areas, as an ideal habitat for tigers.

    About Mhadei Wildlife Sanctuary

    Location Western Ghats, spanning Goa, Karnataka, and Maharashtra.
    Establishment Designated as a wildlife sanctuary in 1999.
    Area Approximately 208.5 square kilometers.
    Ecological Significance Located within the UNESCO World Heritage-listed Sahyadri mountain range. Comprises various forest types and grasslands, supporting diverse flora and fauna.
    Flora Rich in plant species, including medicinal plants and endemic flora.
    Fauna Home to Tigers, Indian gaur, sambar deer, leopards, barking deer, wild boars, reptiles, amphibians, and birds.
    Conservation Importance Crucial for conserving endangered species and maintaining biodiversity in the Western Ghats. Promotes genetic diversity through wildlife corridors.
    Legal Dispute Ongoing disagreement between Goa and Karnataka regarding Mhadei/Mahadayi (Mandowi) River water diversion, with concerns about its impact on the sanctuary’s ecology.

  • Stocktaking climate finance a case of circles in red ink

    climate finance

    Central idea

    The article emphasizes the critical role of climate finance in global trust-building, highlighting challenges such as inequality, mandatory contribution frameworks, and political will. Concerns arise from insufficient funding, voluntary contributions, and disparities between pledged amounts and actual commitments.

    Key Highlights:

    • Climate Finance Crucial: Climate finance is essential for trust in climate change negotiations, especially in COP 28. The Synthesis Report highlights a 1.1°C temperature increase causing hazardous weather, intensifying demands for mitigation actions by developing countries.
    • $100 Billion Commitment: Developed countries committed to mobilize $100 billion per year by 2020, but the Glasgow conference in 2021 reported only $79.6 billion mobilized, leading to concerns about insufficient funding to support developing nations in low-carbon transitions.
    • NDC Financial Needs: Developing nations, as per their Nationally Determined Contributions (NDCs), estimate financial needs close to $6 trillion until 2030. India’s NDCs highlight financial requirements of $206 billion for adaptation and $834 billion for mitigation.

    Challenges:

    • Inequality in Contribution: Developed countries exhibit disparities in fulfilling climate finance commitments, with the U.S. contributing only 5% of its fair share. This inequality hampers the effective mobilization of funds required for climate action.
    • Mandatory Contribution Framework: The absence of a mandatory framework for developed nations to contribute poses a significant challenge. The lack of clear criteria for collecting funds creates uncertainty about achieving the set financial goals.
    • Discrepancies in Pledged Amounts: The second replenishment of the Green Climate Fund (GCF) revealed contributions from only 25 out of 37 developed countries. The shortfall in meeting pledges raises concerns about the reliability of financial commitments.
    • Global Urgency Disparity: Unlike the swift response to the 2009 global financial crisis, there is a notable lack of political will and urgency among developed nations to address climate finance needs. This disparity impedes progress in protecting the global atmosphere.

    Concerns:

    • Insufficient Funding: The $79.6 billion mobilized falls short of the committed $100 billion annually, hindering the capacity of developing nations to transition to sustainable practices. The insufficiency raises concerns about meeting climate finance goals.
    • Voluntary Contributions Challenge: The inclusion of voluntary contributions by nine developing countries in the GCF introduces complexities in defining and accounting for international public climate finance. The challenge lies in establishing uniform criteria for contributions.
    • Impact on Developing Nations: Developing nations, as highlighted in their Nationally Determined Contributions (NDCs), express financial needs close to $6 trillion until 2030. The gap between needs and actual mobilized funds poses a significant concern for these nations.

    Analysis:

    • Crisis of Commitment: Discrepancies between pledged amounts and actual contributions underscore a crisis of commitment among developed countries. This undermines the effectiveness of global climate finance mechanisms, impacting the transition to sustainable practices.
    • Political Will Deficiency: The lack of political will and a sense of urgency among developed nations to address climate finance needs reveals a critical deficiency. Urgent action is necessary to bridge the gap between commitments and tangible contributions.

    Key Data:

    • GCF Replenishment: The second replenishment of the Green Climate Fund gathered pledges of $9.3 billion, with contributions from 25 developed countries out of 37.
    • Developed Countries’ $100 Billion Commitment: The actual mobilization reported at the Glasgow conference in 2021 was $79.6 billion, falling short of the committed $100 billion annually.

    Key Terms:

    • Nationally Determined Contributions (NDCs): Country-specific climate action plans submitted under the Paris Agreement outlining mitigation and adaptation goals.
    • Global Stocktake: Periodic assessment of collective progress in climate action, informed by scientific findings, as part of the COP meetings.

    Way Forward:

    • Transparent Burden-Sharing: Establishing a transparent and agreed-upon burden-sharing formula among developed countries is crucial for fair and consistent contributions to climate finance.
    • Mandatory Contribution Framework: Implementing a mandatory framework for developed nations to contribute, accompanied by clear criteria for mobilizing funds, is essential to ensure reliability in financial commitments.
    • Global Cooperation and Urgency: Fostering a sense of urgency and global cooperation is imperative. A collective and urgent response, similar to past financial crises, is needed to address the critical climate finance needs and fulfill international commitments effectively.
    • Capacity Building: Prioritizing capacity building in developing nations to facilitate a smooth transition to sustainable practices. This includes supporting economic opportunities and livelihoods for those entrenched in fossil fuel economies.

  • Indians are choking on pollution. How can it be stopped?

    Central idea

    Severe health consequences of air pollution cannot be mitigated by personal protection measures alone. Clean, public transport and rapid transition away from fossil fuels are needed.

    Key Highlights:

    • Air pollution in India, particularly in cities like Delhi, is significantly reducing life expectancy.
    • A recent report estimates an average loss of 5.3 years of life expectancy in India due to air pollution.
    • Delhi, one of the most polluted cities globally, faces an even worse scenario with an estimated life loss of 11.9 years.

    Challenges:

    • 39 out of 50 of the world’s most polluted cities are in India, impacting both urban and rural areas.
    • Pollutants monitored include PM 10, PM 2.5, nitrogen dioxide, sulfur dioxide, carbon monoxide, ozone, ammonia, lead, benzene, formaldehyde, and cadmium.
    • India’s air quality standards are less stringent than WHO standards, with concerns about health risks even at lower pollution levels.

    Concerns:

    • Prolonged exposure to air pollution, even at satisfactory Air Quality Index (AQI) levels, can have adverse health effects.
    • Geographical factors, like the landlocked Indo-Gangetic plain, exacerbate pollution levels, especially during winters.
    • Both outdoor and indoor sources contribute to air pollution, impacting various regions differently.

    Analysis:

    • Health harms range from acute effects like respiratory issues to severe conditions such as heart attacks and strokes.
    • Long-term exposure to air pollution is linked to hypertension, cardiovascular diseases, cancers, diabetes, dementia, cataracts, and more.
    • Pregnant women and children are particularly vulnerable, facing risks of stillbirths, neonatal deaths, low birth weight, and developmental issues.

    Key Data:

    • The WHO’s PM 2.5 limit is 5 microns, while India allows 40 microns.
    • Delhi’s current AQI of 126 exceeds national and WHO standards.
    • 22 states meet national AQI standards, but none meet WHO standards.

    Key Terms:

    • Particulate matter (PM 2.5) and ultra-fine particles.
    • AQI categories: Good, satisfactory, moderately polluted, poor, very poor, and severe.
    • Emission sources: line, point, area, and natural sources.
    • Personal protection measures, including air purifiers, masks, and breathing exercises.

    Way Forward:

    • Urgent measures needed for clean transport, increased public transport usage, renewable energy adoption, and waste disposal improvements.
    • Addressing household air pollution through alternative fuel use and better ventilation.
    • Proactive public policy, enforcement, monitoring, and innovations required to combat air pollution and its health impacts.

  • Cloud Seeding

    cloud seeding

    Central Idea

    • Solapur, a city with limited rainfall due to its location on the leeward side of the Western Ghats, witnessed an 18% relative enhancement in rainfall through a cloud seeding experiment.

    What is Cloud Seeding?

    Explanation
    Definition Weather modification technique to enhance precipitation.
    Objective Increase rainfall or snowfall in areas facing water scarcity or drought.
    Seeding Agents Silver iodide, calcium chloride, potassium iodide, sodium chloride, etc.
    Suitable Clouds Typically convective clouds with moisture and vertical motion.
    Methods of Dispersion Aircraft, rockets, ground-based generators, drones.
    Environmental Impact Generally considered safe with minimal environmental impact.
    Effectiveness Variable; depends on weather conditions and cloud characteristics.

    About CAIPEEX Experiment

    • The initiative, known as the Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX phase-4), sought to investigate the effectiveness of hygroscopic seeding in deep convective clouds.
    • Over two hours after cloud seeding, an additional 8.67mm of rainfall was recorded, resulting in 867 million litres of augmented water availability.

    Importance of the Experiment

    • Growing NCD Burden: As India grapples with a rising burden of non-communicable diseases (NCDs), exacerbated by the consumption of pre-packaged foods, informed consumer choices and food safety become paramount.
    • Cloud Seeding Efficacy: The experiment underscores cloud seeding as an effective strategy for enhancing rainfall, particularly in regions with suitable conditions.
    • Cost-Benefit Analysis: The research evaluates the cost-effectiveness of cloud seeding, estimating the cost of producing water through cloud seeding at 18 paise per litre.

    Key Findings and Methodology

    • Randomized Seeding Experiment: The study selected 276 convective clouds, with 150 subjected to seeding and 122 serving as the control group.
    • Criteria for Seeding: Clouds with characteristics such as significant liquid water content, vertical motion indicative of cloud growth, and depth exceeding one kilometre were targeted.
    • Seeding Agent: Calcium chloride flares were employed for cloud seeding, ensuring optimal dispersion and entry into growing clouds.
    • Rainfall Enhancement: Seeded clouds produced more rainfall than unseeded ones, resulting in an 18% relative enhancement.

    Implications and Future Prospects

    • Water Management: While cloud seeding alone cannot alleviate droughts, it can contribute to an 18% increase in rainfall and partially address water requirements.
    • Cost Reduction: Utilizing indigenous seeding aircraft could reduce costs by over 50%, making cloud seeding more accessible.
    • High-Resolution Numerical Model: The study has developed a numerical model to help stakeholders identify target locations, suitable clouds for seeding, and effective strategies for enhancing rainfall.

  • A green transition, but not without the coal-rich states

    green transition

    Central idea

    India’s green transition faces challenges as coal-rich states encounter fiscal implications and regional imbalances. The article emphasizes the need for inclusive development, addressing fiscal concerns, and reviving balanced regional developmentalism to ensure a fair and effective energy transition.

    Key issues highlighted in the article

    • In August 2023, 5% of grid-connected RE generation came from eight states.
    • The Central Electricity Authority’s report projects solar and wind to constitute almost 51% of total generation capacity and nearly 31% of all generated power by 2030.
    • The massive RE build-out has mainly benefited western and southern states.
    • Research indicates that RE-poor, coal-rich states may face a double hit to state revenues due to declining coal royalties and increasing electricity imports.
    • The combined revenue impact could worsen budget deficits of RE-poor power-importing states by almost 8.66% on average.
    • Frictions exist between Union and state governments regarding central policies, transmission waivers, and financing struggles in the power sector.

    Present Status:

    • Recent developments indicate a continued reliance on coal, raising questions about the trajectory of India’s energy transition.
    • The dominance of specific states in RE generation highlights regional imbalances.

    UPSC mains relevance:

    • Ongoing debates on India’s energy transition and challenges in balancing fiscal interests.
    • Understanding the role of state finances in achieving national renewable energy goals.
    • Familiarity with the potential fiscal impacts of transitioning from coal to renewables in different states.

    Key Challenges:

    • Declining coal royalties and increasing RE procurement costs pose a fiscal challenge for coal-rich states.
    • The combined revenue impact could exacerbate budget deficits of RE-poor states by almost 8.66%, breaching norms established by the Fiscal Responsibility and Budgetary Management Act, 2003.
    • Tensions between the Union and states regarding power sector policies, transmission waivers, and centralization of electricity markets.
    • The displacement of RE integration costs onto state transmission companies raises concerns.

    Relevant Data from Article:

    • In August 2023, 92.5% of grid-connected RE generation came from eight states, primarily in the western and southern regions.
    • The Central Electricity Authority’s projection expects solar and wind to constitute nearly 51% of total generation capacity by 2030.

    Way Forward:

    • Revive the philosophy of balanced regional developmentalism, ensuring that RE-poor states have a substantial stake in the energy transition.
    • Preferential lending for RE projects in such states by state lenders.
    • Reinforce institutions like the Inter-State Council to facilitate greater state participation in federal power negotiations.
    • Explicit financial transfers to RE-poor states through the Finance Commission.
    • Implement just transition mechanisms for collaborative industrial policies, ensuring a fair distribution of benefits and challenges.

    Conclusion:

    Ensuring a green transition in India necessitates addressing the fiscal and regional disparities. The revival of balanced regional developmentalism and inclusive policies is crucial to prevent the energy transition from exacerbating existing inequalities. The focus should be on collaborative federalism, just transition mechanisms, and empowering all states to actively participate in and benefit from the ongoing energy transformation.

  • Mitigating tragedies in the Himalayan region

    Central idea

    The article highlights the increasing risks of glacial lake outburst floods (GLOFs) in the Indian Himalayan Region due to climate change. It emphasizes the need for a comprehensive, multi-disciplinary effort to develop early warning systems and mitigation strategies for high-risk glacial lakes.

    Definition of GLOFs:

    • Glacial Lake Outburst Floods (GLOFs) are sudden and massive releases of water from glacial lakes, often triggered by the collapse of glacial moraines or other natural events. These floods pose severe threats to downstream areas.

    Features of Glacial Lake Outburst Floods (GLOFs)

    • Rapid Onset: Glacial Lake Outburst Floods (GLOFs) are characterized by their sudden and rapid onset. These floods can unleash enormous amounts of water in a short period, often catching downstream communities off guard.
    • Highly Destructive: GLOFs are highly destructive natural disasters. The massive volume of water released during an outburst can lead to flash floods, causing widespread damage to infrastructure, agriculture, and ecosystems in the affected areas.
    • Glacial Lakes as Time Bombs: Glacial lakes, formed by the melting of glaciers, act as reservoirs for potential GLOFs. The increasing rate of glacier melt, attributed to climate change, raises concerns about the growing number of these ‘time bombs’ that could pose threats to downstream regions.
    • Global Impact: GLOFs are not confined to specific regions but have a global impact. The risk of GLOFs exists in various mountainous areas worldwide, including the Himalayas, Andes, Alps, and the Rocky Mountains. Climate change exacerbates these risks, making GLOFs a concern on a broader scale.

    Consequences of GLOFs:

    • Flash Floods: The rapid release of water leads to flash floods downstream, causing immediate and extensive damage.
    • Morphological Changes: GLOFs alter the landscape, leading to changes in river courses and topography.
    • Loss of Life and Property: Downstream communities face a high risk of casualties, property damage, and loss of livelihoods.
    • Permanent Changes: GLOFs bring permanent alterations to the affected areas, impacting their socio-economic fabric.

    Challenges in Monitoring and Prediction:

    • Monitoring and predicting such cascading events are challenging, requiring an integrated system for early warnings and risk mitigation.
    • The Himalayan Region faces a range of hydro-meteorological, tectonic, climate, and human-induced mountain hazards, making monitoring and estimation difficult due to the multitude of glaciers and temporal variations in glacial recession.

    Well known examples

    • South Lhonak Lake, Sikkim (2023): The recent glacial lake outburst flood in Sikkim resulted in the death of 14 people and left 102 missing. The South Lhonak Lake, situated at 17,000 ft, burst due to incessant rains, causing flash floods in downstream areas along the Teesta river.
    • Chorabari Tal, Uttarakhand (2013): In 2013, flash floods and a glacial lake outburst flood were triggered by the Chorabari Tal glacial lake in Uttarakhand’s Kedarnath. The event caused widespread destruction, leading to the loss of thousands of lives.

    Government Schemes and Initiatives

    • Early Warning Systems: The National Disaster Management Authority (NDMA) led a preparatory mission, installing automated cameras and monitoring equipment at high-altitude glacial lakes. Despite challenges, this initiative is a step towards developing an end-to-end early warning system.
    • Geo-technical Solutions: Globally, measures like excavating channels, drainage systems, spillway construction, and small catchment dams have been attempted. However, implementing these at high altitudes faces formidable challenges, including inaccessibility and harsh conditions.
    • National Remote Sensing Centre’s Atlas: The NRSC’s Glacial Lake Atlas of 2023 provides crucial data on the distribution of glacial lakes. It highlights the vast number of high-risk lakes in the Indus, Ganga, and Brahmaputra basins, emphasizing the enormity of the challenge.

    Way Forward

    • Integrated Efforts: Addressing the GLOF risk requires collaboration across institutions. The NRSC’s remote sensing data, the Central Water Commission’s hydro-dynamic assessments, and the NDMA’s guidelines contribute to a comprehensive understanding of the hazard.
    • Comprehensive GLOF Risk Mitigation Plan: A plan is in progress, focusing on installing monitoring and early warning systems. However, the success of this plan depends on the collective efforts of governments and scientific institutions.

     

    Conclusion

    Mitigating GLOFs demands immediate attention. The integration of resources and capacities, along with a focus on prevention and mitigation, will reduce the impact on downstream communities. The government’s initiatives and collaborative efforts are crucial steps towards ensuring the stability and resilience of Himalayan communities in the face of increasing climate risks.