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Subject: Environment

  • World Bank report suggests “New Water-Food Nexus Framework” for smarter hydrological use to feed 10 billion people

    Why in the News?

    In March 2026, the World Bank released a landmark report titled “New Water-Food Nexus Framework” ahead of World Water Day. The report warns of a “Global Water Bankruptcy,” stating that current water management can sustainably support food for only 3.4 billion people, far short of the 10 billion projected by 2050.

    Economic Impact of Productivity:

    • A 10% increase in agricultural productivity can lead to a 2.5–3% reduction in poverty.
    • Expanding irrigation in rainfed areas could potentially create 245 million jobs globally.

    Global Water Bankruptcy:

    • The UN and World Bank warn that water crises are no longer “temporary” but a structural state of bankruptcy.
    • South Asia (including India) is flagged for overexploiting resources, while Sub-Saharan Africa is noted for underusing available water.

    The “New Water-Food Nexus Framework”: 

    • The report categorizes nations into four quadrants to guide policy:
      • Water-secure food exporter: Abundant water, exports calories (e.g., Brazil).
      • Water-secure food importer: Has water but relies on trade for food.
      • Water-stressed food exporter: High water risk but remains a major exporter (India falls here).
      • Water-stressed food importer: Lacks water and relies on imports (e.g., Middle East).
    [2023] Consider the following statements: 
    Statement-I: According to the United Nations’ ‘World Water Development Report, 2022’, India extracts more than a quarter of world’s groundwater withdrawal each year. 
    Statement-II: India needs to extract more than a quarter of the world’s groundwater each year to satisfy the drinking water and sanitation needs of almost 18% of world’s population living in its territory. 
    Which one of the following is correct in respect of the above statements? 
    (a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I (c) Statement-I is correct but Statement-II is incorrect (d) Statement-I is incorrect but Statement-II is correct
  • Should Kerala Capture Muttikomban or Promote Coexistence?

    Why in the news?

    The Kerala Forest Department is attempting to capture the wild elephant Muttikomban in Vadakkanad, Wayanad district, with plans to confine it in a kraal at Muthanga and convert it into a Kumki elephant, triggering scientific, legal and conservation concerns.

    Why Is Muttikomban Being Targeted?

    Repeated crop damage in farms and plantations
    Frequent movement into settlements
    Recent death of farmer Rajeev
    • Locals suspect Muttikomban responsible

    However

    No scientific evidence linking elephant to death
    No camera trap or forensic confirmation
    • No record of previous human killing

    What Is a Kraal?

    Wooden enclosure used to confine wild elephants
    • Used during taming and training process
    • Step before conversion into Kumki elephant

    What Is a Kumki Elephant?

    Trained captive elephant
    • Used to control wild elephants
    • Used during capture operations
    • Used in forest management

    Why Are Experts Opposing Capture?

    Legal Concerns

    Wildlife Protection Act 1972
    • Capture allowed only as Last Resort
    • Requires Verified Threat Evidence
    • Experts say Legal criteria not met

    Ethical Concerns

    Stress during tranquilisation
    Captivity of wild elephant
    • Possible Violation of Prevention of Cruelty to Animals Act

    [2022] With reference to Indian laws about wildlife protection, consider the following statements: 
    1 Wild animals are the sole property of the government. 
    2 When a wild animal is declared protected, such animal is entitled for equal protection whether it is found in protected areas or outside. 
    3 Apprehension of a protected wild animal becoming a danger to human life is sufficient ground for its capture or killing. 
    Which of the statements given above is/are correct? 
    (a) 1 and 2 (b) 2 only (c) 1 and 3 (d) 3 only
  • New Butterfly Species Named After Zubeen Garg

    Why in the news?

    A new butterfly species discovered in Arunachal Pradesh’s Leparada district has been named Euthalia zubeengargi in honour of Zubeen Garg, a cultural icon of Assam, whose death on September 19, 2025 triggered widespread public reaction.

    What Is the Newly Discovered Butterfly Species?

    Scientific Name: Euthalia zubeengargi
    Common Name Proposed: Basar Duke
    Genus: Euthalia
    Habitat: Semi evergreen forests
    Elevation Range: 600 to 750 metres
    Location: Leparada district, Arunachal Pradesh

    Why Is the Discovery Important?

    • Only Two Male Individuals recorded
    • One Collected Specimen
    • One Photographed in Wild
    • Indicates Rare or Highly Localised Species
    • Found in Forest Ecosystem of Eastern Himalayas

    [2016] Recently, for the first time in our country, which of the following States has declared a particular butterfly as ‘State Butterfly’? 
    (a) Arunachal Pradesh (b) Himachal Pradesh (c) Karnataka (d) Maharashtra

  • India’ new climate targets are modest but significant

    Why in the News?

    India officially approved its third Nationally Determined Contribution (NDC 3.0) for the 2031-2035 period. This comes at a time when global climate leadership is weakening, especially with the US stepping back from clean energy financing and multilateral commitments. This is significant because India, despite being the third-largest emitter, is signalling continuity in climate commitment while many developed countries are retreating.

    What are the exact targets under India’s NDC-3?

    1. Emissions Intensity Reduction: Ensures 47% reduction by 2035 (from 2005 levels); builds on 45% target for 2030 and 36% already achieved by 2020.
    2. Non-Fossil Electricity Capacity: Ensures 60% installed capacity from non-fossil sources by 2035; compared to 40% (Paris target) and ~52% achieved by Feb 2026.
    3. Carbon Sink Expansion: Ensures 3.5-4 billion tonnes CO₂ equivalent sink, up from 2.5-3 billion tonnes target; 2.3 billion tonnes already created by 2021.

    What were India’s early achievements under previous NDCs?

    1. Early Target Achievement: Ensures fulfillment of 33-35% emissions intensity reduction (2005–2030 target) by 2020 itself, achieving a 36% reduction, i.e., 11 years ahead of schedule, demonstrating policy credibility and implementation capacity.
    2. Renewable Energy Transition: Ensures achievement of 40% non-fossil fuel-based installed electricity capacity well before the 2030 deadline (achieved ~2021-22), reflecting accelerated deployment of solar, wind, and other clean energy sources.
    3. Enhanced Ambition: Strengthens climate commitment by revising emissions intensity reduction target from 45% (2030) to 47% (2035), building on early success and improved capacity.
    4. Carbon Sink Creation: Ensures creation of 2.29 billion tonnes of CO₂ equivalent carbon sink by 2021, progressing steadily towards the earlier target of 2.5-3 billion tonnes, through afforestation and ecosystem restoration initiatives.
    5. Afforestation and Livelihood Linkage: Supports rural livelihoods alongside climate mitigation through forest expansion, integrating environmental sustainability with socio-economic development.
    6. Global Recognition: Secures international validation, with the Food and Agriculture Organization (FAO) ranking India 3rd globally in net gain in forest area and 9th in total forest area, highlighting effectiveness of conservation policies. 

    Why are the targets termed ‘modest’ despite progress?

    1. Marginal Increase: Expands clean energy share from 52% to only 60% by 2035, indicating slow incrementalism.
    2. Under-commitment Strategy: Avoids overpromising due to uncertainty in finance and technology access.
    3. Comparison with Capability: Existing trajectory suggests India could achieve higher targets without formal commitment.
    4. Deliberate Caution: Prevents binding commitments that may constrain future policy flexibility

    How has India overachieved its previous climate commitments?

    1. Early Emissions Reduction: Achieved 36% reduction by 2020, exceeding 33-35% target for 2030.
    2. Renewable Expansion: Rapid increase in solar and wind capacity pushed non-fossil share to ~52% by 2026.
    3. Carbon Sink Creation: Achieved 2.3 billion tonnes CO₂ sink by 2021, nearing earlier commitments.
    4. Policy Continuity: Maintains stable climate trajectory unlike abrupt reversals in other economies.

    What global developments are shaping India’s cautious climate stance?

    1. US Retreat: Weakens global leadership in renewables and climate finance.
    2. Geopolitical Conflicts: Russia-Ukraine war triggered energy insecurity, increasing fossil fuel reliance globally.
    3. Supply Chain Disruptions: Pandemic exposed vulnerabilities in global manufacturing and logistics.
    4. Energy Nationalism: Countries prioritizing domestic fossil fuel security over climate commitments.

    Why is climate finance the central constraint in India’s climate ambition?

    1. Finance Gap: Developed countries promised $300 billion/year post-2035, while developing nations demand $1.3 trillion/year.
    2. Implementation Barrier: Limits renewable expansion, storage infrastructure, and grid modernization.
    3. Equity Principle (CBDR): Requires developed nations to bear greater responsibility.
    4. Negotiation Deadlock: Failure at Baku COP29 to finalize adequate financing framework.

    How does India use climate commitments as a strategic negotiation tool?

    1. Conditional Ambition: Links higher targets to availability of finance and technology.
    2. Diplomatic Leverage: Uses moderated commitments to push for fair global burden-sharing.
    3. South Leadership: Positions itself as the voice of developing countries.
    4. Forum Engagement: Raises concerns consistently in international platforms and negotiations.

    What are the risks associated with India’s current climate strategy?

    1. Low Ambition Risk: May not align with the 1.5°C warming pathway.
    2. Fossil Lock-in: Continued reliance due to industrial growth and energy demand.
    3. Climate Vulnerability: India remains highly exposed to climate impacts despite mitigation efforts.
    4. Global Trust Deficit: Weak multilateralism reduces effectiveness of cooperative climate action.

    How is India balancing development and climate responsibility?

    1. Development Priority: Ensures energy access and economic growth remain central.
    2. Gradual Transition: Avoids abrupt fossil fuel phase-out.
    3. Domestic Financing Shift: Increasing reliance on internal resources due to global finance gaps.
    4. Adaptation Focus: Expected emphasis in COP30 (Brazil) on resilience and adaptation strategies. 

    Conclusion

    India’s NDC-3 reflects a calibrated realism shaped by global uncertainty and domestic priorities. Sustained credibility through overachievement strengthens India’s position, but enhanced ambition depends on resolving finance and technology constraints.

    PYQ Relevance

    [UPSC 2021] Describe the major outcomes of the 26th session of the Conference of the Parties (COP) to the United Nations Framework Convention on Climate Change (UNFCCC). What are the commitments made by India in this conference?

    Linkage: This PYQ tests understanding of global climate governance (COP26) and India’s NDC commitments, core to GS3 environment and international relations. It is directly linked to the article as India’s 2035 NDC targets (NDC-3) build upon and extend the COP26 commitments (Panchamrit), reflecting continuity and calibrated ambition.

  • Death of Winter in Kashmir: Shrinking Snowfall and Himalayan Climate Crisis

    Why in News

    • A Down To Earth report (March 2026) highlighted that Kashmir has recorded seven consecutive winters with below normal snowfall.  

    Key Findings

    Declining Snowfall

    • Seven consecutive winters with below normal snowfall
    • Winter 2025 to 26 precipitation:
      • Actual: 100.6 mm
      • Normal: 284.9 mm
      • Deficit: 65 percent

    February 2026 Rainfall

    • Actual rainfall: 14.2 mm
    • Normal rainfall: 130.4 mm
    • Deficit: 89 percent

    Srinagar Record

    • Only 5.3 mm precipitation
    • One of the lowest since 1901

    Rising Winter Temperatures

    Record Temperatures

    • Srinagar February average maximum:
      • 15.6°C in 2026
      • Previous record: 14.9°C in 2016

    Gulmarg Temperature

    • Early March temperature:
      • 17.2°C
      • 13.7°C above normal

    Why Snowfall Matters in the Himalayas

    Natural Water Storage

    • Snow acts as natural reservoir
    • Gradual melting feeds: Rivers, Streams and Irrigation systems
    [2023] Consider the following statements: 1 Jhelum River passes through Wular Lake. 2 Krishna River directly feeds Kolleru Lake. 3 Meandering of Gandak River formed Kanwar Lake. How many of the statements given above are correct? (a) Only one (b) Only two (c) All three (d) None
  • Cauvery Basin May Face Water Decline Till 2050 

    Why in the News

    A study by IIT Gandhinagar published in Earth’s Future journal warns that the Cauvery river basin may face a decline in water availability until 2050, unlike most other Indian rivers expected to see increased flows due to climate change.

    Key Findings of the Study

    Decline in Cauvery Water

    • 3.5 percent decline in Cauvery water expected
    • Time period: 2026 to 2050
    • Minimal increase expected after 2051

    Historical Decline

    • Cauvery streamflow declined 28 percent between 1951 and 2012
    • Based on data from Kollegal monitoring station

    Contrast with Other Rivers

    • Most major Indian rivers expected to see increase in flow
    • Projected increases
      • Indus: 25 percent increase
      • Ganga: 8 percent increase
      • Krishna: 16 percent increase
    • Cauvery stands as exception
    [2020] Which of the following Protected Areas are located in Cauvery basin? 
    1 Nagarhole National Park 
    2 Papikonda National Park 
    3 Sathyamangalam Tiger Reserve 
    4 Wayanad Wildlife Sanctuary 
    Select the correct answer using the code given below: 
    (a) 1 and 2 only (b) 3 and 4 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4
  • India Targets 60 Percent Non Fossil Power Capacity by 2035

    Why in News

    India updated its Nationally Determined Contributions NDC under the Paris Agreement, setting new climate targets for 2035.

    Key Climate Targets for 2035

    Energy Transition Target

    • 60 percent installed electricity capacity from non fossil sources
    • Non fossil sources include: Solar, Wind, Hydropower, Biomass, and Nuclear

    Emissions Reduction Target

    • Reduce emissions intensity of GDP by 47 percent
    • Base year: 2005 levels

    Carbon Sink Target

    • Increase carbon sink to 3.5 to 4 billion tonnes of CO2 equivalent
    • Through: Forest cover and Tree cover

    Current Status

    Non Fossil Capacity

    • Current installed capacity from non fossil sources: 52 percent
    • Power generation from non fossil sources: About 25 percent

    Emissions Reduction

    • India reduced emissions intensity: 36 percent reduction from 2005 to 2020

    Carbon Sink Progress

    • Carbon sink created from 2005 to 2019: 1.97 billion tonnes CO2 equivalent

    Forest Cover

    • Forest and tree cover in 2021: 24.6 percent of geographical area
    • National target: 33 percent forest cover

    Earlier NDC Targets for 2030

    India committed to:

    • 50 percent non fossil electricity capacity
    • 44 percent emissions intensity reduction
    • Carbon sink of 2.5 to 3 billion tonnes

    Paris Agreement Context

    • Countries must submit updated NDC every five years
    • India required to submit updated targets by 2025
    • Targets apply for 2031 to 2035 period
    [2016] The term ‘Intended Nationally Determined Contributions’ is sometimes seen in the news in the context of 
    (a) pledges made by the European countries to rehabilitate refugees from the war-affected Middle East  
    (b) plan of action outlined by the countries of the world to combat climate change 
    (c) capital contributed by the member countries in the establishment of Asian Infrastructure Investment Bank 
    (d) plan of action outlined by the countries of the world regarding Sustainable Development Goals

  • Smog-Eating Photocatalytic Coating

    Why in the News

    • The Delhi Government and IIT Madras are collaborating to study smog eating photocatalytic coatings on roads to reduce urban air pollution.

    What is Smog-Eating Photocatalytic Coating

    • A special coating applied on roads and buildings
    • Designed to neutralize harmful pollutants in the air
    • Targets:
      • Nitrogen dioxide (NO₂)
      • Volatile hydrocarbons
      • Other toxic gases

    Compound Used

    Titanium Dioxide (TiO₂)

    • Most commonly used material
    • Advantages:
      • Low cost
      • Chemically stable
      • Durable
      • Compatible with construction materials

    Working Mechanism

    Photocatalysis Process

    • Sunlight activates Titanium dioxide
    • Chemical reactions break down pollutants
    • Converts harmful gases into:
      • Less toxic substances
      • Harmless compounds

    Result:

    • Cleaner air
    • Reduced smog levels
    • Environmental cleaning

    Applications

    • Roads, Buildings, Pavements, Flyovers, and Public infrastructure

    Benefits

    • Reduces urban air pollution
    • Passive pollution control
    • Low maintenance
    • Cost effective
    • Sustainable technology
    [2013] Photochemical smog is a resultant of the reaction among: (a) NO 2 ​ , O 3 ​ and peroxyacetyl nitrate (PAN) in the presence of sunlight (b) CO 2 ​ , O 2 ​ , and peroxyacetyl nitrate in the presence of sunlight (c) CO, CO 2 ​ , and NO 2 ​ at low temperature (d) high concentration of NO 2 ​ , O 3 ​ and CO in the evening
  • UNEP Report: Waste Prevention Key to Safe Disposal of Unused Medicines

    Why in News

    A new report by the United Nations Environment Programme (UNEP) highlights waste prevention as the most effective strategy for the safe disposal of unused medicines, citing risks to environmental and public health.

    Why Improper Disposal is a Concern

    Improper disposal of medicines leads to:

    • Antimicrobial Resistance (AMR)
    • Endocrine disruption
    • Toxicity risks
    • Water, soil and air pollution
    • Accidental poisoning

    Unused and expired antimicrobials are particularly linked to AMR pollution.

    UNEP Four Pillar Framework

    The UNEP report proposes a Four-Pillar Approach:

    1. Prevention at source
    2. Medicine take-back systems
    3. Legal and policy frameworks
    4. Awareness and outreach programmes

    Unused Medicine in India 

    • Households discard up to 70% of purchased medicines, with common methods including throwing them in dustbins (over 80% in studies), contributing to environmental contamination and antimicrobial resistance
    • The Central Drugs Standard Control Organization (CDSCO) has issued formal guidelines to address this waste and the resulting environmental hazards.
    • Guidelines for:
    • Collection
    • Storage
    • Transportation
    • Disposal of expired medicines
    • 17 drugs placed under Flush List for safe disposal
    [2019] Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India? 
    1 Genetic predisposition of some people 
    2 Taking incorrect doses of antibiotics to cure diseases 
    3 Using antibiotics in livestock farming 
    4 Multiple chronic diseases in some people 
    Select the correct answer using the code given below: (a) 1 and 2 (b) 2 and 3 only (c) 1, 3 and 4 (d) 2, 3 and 4
  • Erratic Weather in March 2026 

    Why in the News

    • March witnessed unusual weather patterns: early heatwaves followed by thunderstorms, hailstorms, and rain across India.
    • Special Phenomena: Nor’westers (Kalbaisakhi) in eastern India: Sudden intense storms with thunder, lightning, and hail

    What Happened

    • Early March: Heatwaves in North and West India
    • Mid to late March: Sudden shift to:
      • Thunderstorms
      • Hailstorms
      • Intense rainfall
    • Impact: Significant temperature drop

    Main Reasons

    1. Western Disturbances (WDs)

    • Origin: Mediterranean region (via West Asia)
    • Role: Bring rain and snowfall in non-monsoon months
    • Key factor: Two intense Western Disturbances (March 13 & 18) triggered widespread weather changes

    2. Cyclonic Circulation

    • Persistent low-pressure circulation in lower atmosphere
    • Helped intensify: Cloud formation and Rainfall activity

    3. Moisture Influx

    • Winds from: Bay of Bengal and Arabian Sea
    • Result: High moisture availability

    4. Wind Convergence

    • Interaction of: Warm moist winds and cold winds
    • Outcome: Severe convection leading to thunderstorms and hail

    5. Seasonal Transition

    • March marks winter to summer transition
    • Rising temperatures plus moisture create ideal conditions for: Thunderstorms and Hailstorms. 

    Geographical Spread

    • Affected regions:
      • Western Himalayas
      • Northeast India
      • Central and Northwest India
      • Parts of South India
    [2015] Consider the following statements: 
    1. The winds which blow between 30° N and 60° S latitudes throughout the year are known as westerlies. 
    2. The moist air masses that cause winter rains in North-Western region of India are part of westerlies. 
    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