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Subject: Environment

  • India Withdraws Bid to Host COP 33 in 2028

    Why in the News?

    India has withdrawn its bid to host COP 33 in 2028, according to reports.
    India had earlier expressed interest at COP 28 (Dubai, 2023).

    Key Points

    • COP 33 scheduled for 2028
    • India withdrew after review of commitments
    • No official government statement yet
    • South Korea now only country interested

    COP Hosting Rotation

    COP hosting rotates among 5 UN regional groups:

    • African States
    • Asia Pacific States
    • Eastern European States
    • Latin America & Caribbean
    • Western Europe & Others

    India belongs to Asia Pacific group.

    Upcoming COPs

    • COP 30: Brazil
    • COP 31: Turkey & Australia
    • COP 32 (2027): Ethiopia
    • COP 33 (2028): To be decided

    India’s COP Hosting History

    • India hosted COP 8 (2002)
    • Only time India hosted COP

    India’s Climate Commitments (Updated NDCs)

    By 2035, India aims to:

    • 60% electricity from non fossil sources
    • Reduce emissions intensity by 47%
    • Increase carbon sink by 3.5 to 4 billion tonnes CO₂

    What is COP

    COP = Conference of Parties

    • Annual UN climate summit
    • Under UNFCCC
    • Discuss climate change policies
    [2025] Consider the following statements:
    Statement I: At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the ‘Declaration on Climate and Health’.
    Statement II: The COP 28 Declaration on Climate and Health is a binding declaration; and if signed, it becomes mandatory to decarbonize health sector.
    Statement III: If India’s health sector is decarbonized, the resilience of its healthcare system may be compromised.
    Which one of the following is correct in respect of the above statements?
    (a) Both Statement II and Statement III are correct and both of them explain Statement I (b) Both Statement II and Statement III are correct but only one of the them explains Statement I (c) Only one of the Statements II and III is correct and that explains Statement I (d) Neither Statement II nor Statement III is correct
  • On India’s updated climate pledges

    Why in the News?

    India has updated its Nationally Determined Contributions (NDCs) under the Paris Agreement, signalling continuity in climate ambition while exposing tensions between developmental needs and decarbonisation pressures. The revision raises critical questions on feasibility, equity, and financing, especially for a lower-middle-income economy navigating industrial expansion.

    What are the key enhancements in India’s updated NDCs?

    1. Emission Intensity Reduction: Targets reduction of 47% below 2005 levels by 2035, increasing ambition beyond earlier 45% by 2030.
    2. Non-Fossil Capacity Expansion: Ensures 60% installed electric capacity from non-fossil sources, strengthening renewable transition.
    3. Carbon Sink Expansion: Enhances forest and tree cover to create 3.5-4 billion tonnes CO₂ equivalent sink.
    4. Continuity in Policy: Retains alignment with earlier commitments while incrementally increasing ambition.

    Why are India’s climate commitments structurally constrained?

    1. Developmental Status: Reflects lower-middle-income economy, limiting fiscal and technological capacity.
    2. Energy Demand Growth: Ensures rising demand due to industrial expansion and urbanisation.
    3. Per Capita Emissions: Remains one-third of global average, reinforcing equity argument.
    4. Historical Responsibility: Highlights minimal contribution compared to developed countries.

    What are the major implementation challenges in achieving NDC targets?

    1. Storage Constraints: Limits renewable scalability due to lack of battery storage capacity.
    2. Grid Integration Issues: Creates challenges in balancing intermittent sources like solar and wind.
    3. Transmission Bottlenecks: Restricts evacuation of renewable energy from generation sites.
    4. Financial Burden: Requires large-scale investments, e.g., battery storage expansion needing ~₹3 lakh crore.
    5. Operational Costs: Increases costs due to backup fossil-based power for intermittency.

    Does renewable energy expansion fully address India’s climate goals?

    1. Intermittency Challenge: Reduces reliability due to solar/wind variability.
    2. Curtailment Risk: Leads to underutilisation of installed RE capacity.
    3. Cost-effectiveness Debate: Questions viability when storage and backup costs are included.
    4. Hydropower Constraints: Limits expansion due to environmental and regulatory challenges.

    How does global climate ambition interact with India’s development needs?

    1. 1.5°C Target Pressure: Requires deeper cuts beyond current NDC trajectory.
    2. Equity Principle: Demands consideration of common but differentiated responsibilities (CBDR).
    3. Industrial Growth Needs: Necessitates expansion in manufacturing and infrastructure sectors.
    4. Urbanisation Demand: Increases energy consumption due to rising living standards.

    What are the financial and institutional gaps in India’s climate strategy?

    1. Climate Finance Deficit: Limits implementation due to lack of adequate global funding.
    2. Technology Access Barriers: Restricts adoption of advanced clean technologies.
    3. Institutional Coordination: Creates challenges across sectors like energy, transport, and industry.
    4. Global Cooperation Gaps: Weakens support due to inadequate commitments by developed nations.

    Should India increase its climate ambition further?

    1. Feasibility Concerns: Questions practicality given structural constraints.
    2. Cost Implications: Raises economic burden without assured external support.
    3. Strategic Positioning: Suggests calibrated approach using “national circumstances” principle.
    4. Global Inequity: Highlights disproportionate burden-sharing by developing countries. 

    Conclusion

    India’s updated NDCs reflect a calibrated balance between climate responsibility and developmental priorities. While ambition has increased, structural constraints in finance, technology, and energy systems necessitate a cautious approach. Future climate action must align with equity, global support, and domestic growth imperatives.

    PYQ Relevance

    [UPSC 2022] Discuss global warming and mention its effects on the global climate. Explain the control measures to bring down the level of greenhouse gases which cause global warming, in the light of the Kyoto Protocol, 1997.

    Linkage: The question directly links to India’s updated NDCs as both focus on reducing greenhouse gas emissions through global commitments and national targets under UNFCCC frameworks. It is relevant as it helps analyze how India balances emission reduction obligations (Kyoto/Paris) with developmental priorities, as highlighted in the article.

  • Indian Softshell Turtle Rescued in Greater Noida

    Why in the News?

    Police in Greater Noida rescued 16 Indian Softshell Turtles from smugglers. The species is protected under Schedule I of Wildlife Protection Act.

    About Indian Softshell Turtle

    • Scientific Name: Nilssonia gangetica
    • Also called: Gangetic Softshell Turtle
    • Type: Freshwater turtle
    • Family: Trionychidae (soft shelled turtles)

    Conservation Status

    • IUCN Status: Endangered
    • Wildlife Protection Act 1972: Schedule I
    • CITES: Appendix I

    Habitat & Distribution

    • Found in river systems: Ganga, Indus, and Mahanadi
    • Countries: India, Pakistan, Nepal, and Bangladesh
    • Habitat: Deep rivers, Lakes, Canals, and Muddy riverbeds

    Key Features

    • Leathery soft shell
    • Olive green colour
    • Long snorkel like nose
    • Size up to 94 cm
    • Omnivorous scavenger

    Why Smuggled

    • Myth of 20 claws brings good luck
    • Used in illegal wildlife trade
    • False medicinal beliefs
    [2017] In India, if a species of tortoise is declared protected under Schedule I of the Wildlife (Protection) Act, 1972, what does it imply? 
    (a) It enjoys the same level of protection as the tiger. 
    (b) It no longer exists in the wild, a few individuals are under captive protection; and now it is impossible to prevent its extinction. 
    (c) It is endemic to a particular region of India. 
    (d) Both (b) and (c) stated above are correct in this context.
  • [7th April 2026] The Hindu OpED: Climate change as public health emergency

    PYQ Relevance[UPSC 2017] Climate Change’ is a global problem. How India will be affected by climate change? How Himalayan and coastal states of India will be affected by climate change?Linkage: This question directly links to the article as it moves beyond environmental impacts to examine human health consequences, including disease spread, heat stress, and food insecurity. The article adds value by expanding climate change discourse into a public health emergency dimension, enriching GS-3 answers.

    Mentor’s Comment

    Observed on 7 April, World Health Day has brought renewed focus on climate change as a public health emergency. This is significant as global health discourse is now directly linking rising diseases, heat stress, and food insecurity to climate change. The issue is in the news because India is already witnessing these impacts, shifting disease patterns, heat-related deaths, and worsening air pollution, making it an immediate policy concern.

    How is climate change altering disease patterns and epidemiology?

    1. Vector Expansion: Extends mosquito habitats due to warmer and wetter conditions, increasing diseases like malaria beyond endemic zones (e.g., spread to Himachal Pradesh).
    2. Seasonal Disruption: Alters rainfall and temperature cycles, extending infection seasons and increasing unpredictability.
    3. Geographical Shift: Expands disease zones to previously unaffected regions lacking immunity and preparedness.
    4. Example: Dengue cases in Delhi-NCR now peak later than traditional cycles.

    How does climate change intensify waterborne and sanitation-related diseases?

    1. Urban Flooding: Overwhelms drainage systems in cities like Mumbai, creating breeding grounds for pathogens.
    2. Water Contamination: Compromises clean water supply, increasing diseases like cholera, typhoid, hepatitis A, and leptospirosis.
    3. Sanitation Breakdown: Overburdens infrastructure, exposing urban populations to infection risks.
    4. Example: Recurrent waterlogging in Mumbai leading to repeated outbreaks.

    How does climate change exacerbate air pollution and associated health risks?

    1. PM2.5 Increase: Fine particulate matter penetrates deep into lungs and bloodstream, affecting multiple organs.
    2. Respiratory Diseases: Increases incidence of asthma, chronic obstructive pulmonary disease (COPD), and reduced lung function.
    3. Cardiovascular Impact: Leads to hypertension, heart attacks, stroke due to vascular damage.
    4. Example: Rising air pollution in Indian cities linked with increased hospital admissions.

    How are heatwaves and rising temperatures affecting human health?

    1. Heat Stress: Causes dehydration, heatstroke, and mortality, especially among outdoor workers.
    2. Night-time Temperature Rise: Eliminates recovery period, increasing cumulative heat exposure (Delhi-NCR, Mumbai).
    3. Cardiovascular Strain: Forces body to regulate temperature, increasing risk of heart-related conditions.
    4. Example: Increased heatstroke deaths reported in Odisha, Telangana, Vidarbha.

    What are the impacts of climate change on food security and nutrition?

    1. Crop Disruption: Extreme weather events reduce agricultural productivity and disrupt cropping cycles.
    2. Nutritional Decline: Reduces quality of food, leading to micronutrient deficiencies.
    3. Food Price Rise: Increases economic burden and reduces accessibility.
    4. Milk Production Decline: Heat stress reduces livestock productivity, affecting child nutrition.
    5. Example: Increased malnutrition risks among children and elderly.

    How does climate change affect vulnerable populations disproportionately?

    1. Outdoor Workers: Faces prolonged exposure to extreme heat (manual labourers).
    2. Infants: Higher risk of preterm births and low birth weight due to heat and pollution exposure.
    3. Urban Poor: Lack access to cooling, sanitation, and healthcare infrastructure.
    4. Elderly: Increased susceptibility due to weaker immunity and chronic conditions. 

    Way Forward

    1. Integrated Policy Framework: Ensures convergence of climate action and public health systems under National Action Plan on Climate Change (NAPCC) and National Health Mission.
    2. Strengthening Surveillance Systems: Enables early detection of climate-sensitive diseases through real-time data and district-level health monitoring.
    3. Urban Climate Resilience: Promotes heat action plans, sustainable drainage systems, and pollution control to reduce urban health risks.
    4. Healthcare Infrastructure Expansion: Strengthens primary healthcare capacity in climate-vulnerable regions with focus on preventive care.
    5. Food and Nutrition Security: Supports climate-resilient agriculture, crop diversification, and nutrition-sensitive policies.
    6. Community Awareness and Behavioural Change: Enhances public awareness on heat protection, sanitation, and disease prevention.
    7. Adoption of One Health Approach: Integrates human, animal, and environmental health for holistic risk mitigation. 

    Conclusion

    Climate change has transitioned from an environmental concern to a systemic public health emergency. Addressing it requires integrated policymaking, strengthening healthcare systems, and prioritizing vulnerable populations to ensure resilience and adaptive capacity.

  • Supreme Court Allows Kozhikode Wayanad Tunnel Project

    Why in the News?

    The Supreme Court refused to interfere with environmental clearance granted to the Kozhikode Wayanad twin tube tunnel project in Kerala’s Western Ghats.

    Supreme Court Observation

    • Project appears of national importance
    • Kerala faces:
      • Land scarcity
      • Road congestion
      • Transport bottlenecks
    • Court noted:
      • Tunnels common worldwide
      • Experts will handle safety concerns

    About Kozhikode Wayanad Tunnel Project

    • Twin tube tunnel corridor
    • Connects:
      • Kozhikode district
      • Wayanad district
    • Located in Western Ghats
    • Landslide prone region

    Concerns Raised

    Petitioner NGO argued:

    • Near Nilgiri Biosphere Reserve
    • Ecologically fragile Western Ghats
    • Landslide prone area
    • Risk from blasting and vibrations
    • Should receive Category A environmental clearance
    [2016] ‘Gadgil Committee Report’ and ‘Kasturirangan Committee Report’, sometimes seen in the news, are related to (a) constitutional reforms (b) Ganga Action Plan (c) linking of rivers (d) protection of Western Ghats
  • 518 of 697 Lakes in Jammu and Kashmir Shrinking or Vanished: CAG

    Why in the News?

    According to CAG report, 518 out of 697 lakes (74%) in Jammu and Kashmir have either disappeared or shrunk, causing ecosystem degradation and climate risks.

    Key Findings

    • Total lakes assessed: 697
    • Lakes disappeared: 315 (45%)
    • Lakes shrunk: 203 (29%)
    • Total affected lakes: 518 (74%)
    • 63 lakes lost ≥50% water area

    Other Observations

    • 150 lakes (22%) increased in area
    • 29 lakes (4%) remained unchanged

    Major Causes

    • Encroachment and construction
    • Land use change
    • Aquatic vegetation growth
    • Lack of conservation plans
    • Anthropogenic pressure

    Flood Risk

    • Shrinking lakes contributed to 2014 Kashmir floods
    • Lakes act as natural flood buffers

    Governance Gaps

    • No conservation plans for 255 lakes
    • No detailed survey of 697 lakes
    • Poor coordination among departments

    Lakes with Conservation Programmes

    • Only 6 lakes have management plans: Dal Lake, Wular Lake, Hokersar, Manasbal Lake, Surinsar Lake, and Mansar Lake.
    [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
  • Climate Change Threatens Kashmir Willow Cricket Bat Industry

    Why in the News?

    Climate change, declining snowfall, and shrinking willow plantations are threatening Kashmir’s traditional cricket bat industry, which supports over 1.5 lakh livelihoods.

    Kashmir Cricket Bat Industry:  

    • Over 100 years old industry
    • Around 3 million cricket bats produced annually
    • About 150 bat manufacturing units in Sangam (South Kashmir)
    • 1.5 lakh people dependent on the industry
    • Kashmir willow bats are supplied to: Domestic markets and International markets

    Main Raw Material: Kashmir Willow

    • Scientific name: Salix alba (White Willow)
    • Grows near rivers and wetlands
    • Requires:
      • High moisture
      • Moderate temperature
      • Saturated soil
    • Around 80% of bat wood comes from riparian zones (riverbanks and wetlands).
    [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
  • Bengal Florican: The Last Dance in Shrinking Grasslands

    Why in the News?

    The Bengal Florican, a rare grassland bird, is facing severe population decline, with fewer than 1,000 individuals remaining worldwide due to shrinking floodplain grasslands.

    About Bengal Florican

    • Scientific Name: Houbaropsis bengalensis
    • Type: Bustard species
    • Habitat:
      • Alluvial floodplain grasslands
      • Gangetic Brahmaputra plains

    Grass species in habitat:

    • Imperata cylindrica
    • Saccharum spontaneum
    • Saccharum bengalense
    • Desmostachya bipinnata

    Unique Behaviour

    • Male performs vertical jumps
    • Displays wing movements and vocal calls
    • Known as Lekking behaviour
      • Multiple males display together
      • Attract females

    Local Names:

    • Assamese: Ulu mora
    • Bodo: Daotriling

    Distribution

    India

    Major strongholds:

    • Dudhwa National Park (Uttar Pradesh)
    • Manas National Park (Assam)
    • Kaziranga National Park
    • Orang National Park
    • Dibru Saikhowa National Park
    • Majuli river islands
    • Arunachal Pradesh grasslands

    Outside India

    • Nepal
    • Cambodia (Tonle Sap floodplain)

    Why Bengal Florican is Important

    • Indicator species for grassland ecosystem
    • Flagship species for South Asian grasslands
    • Helps maintain ecological balance
    [2020] With reference to India’s Desert National Park, which of the following statements are correct? 1 It is spread over two districts. 2 There is no human habitation inside the Park. 3 It is one of the natural habitats of Great Indian Bustard. Select the correct answer using the code given below: (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3
  • Is global warming being measured comprehensively? A new study flags gaps

    Why in the News?

    A study in Environmental Research Letters shows that current carbon accounting underestimates global warming by undervaluing short-lived pollutants like methane. The dominant GWP100 framework, which centers CO₂, fails to capture methane’s strong near-term impact, potentially underestimating its contribution by up to 40%. The proposed Relative Forcing Accounting (RFA) framework offers a more accurate, time-sensitive approach, challenging existing climate policies and carbon markets.

    Why is the current carbon accounting framework considered inadequate?

    1. Uniform Metric Limitation: Uses CO₂ equivalent (CO₂e) based on GWP100, which standardizes all gases over 100 years, masking short-term impacts.
    2. Methane Undervaluation: Methane is ~28 times more potent than CO₂ over 100 years but significantly more impactful in the short term.
    3. Temporal Blindness: Fails to capture immediate warming spikes caused by short-lived pollutants like methane and black carbon.
    4. Policy Distortion: Encourages focus on long-term CO₂ reduction over urgent methane mitigation.
    5. Example: Current accounting assigns methane emissions a fixed equivalence, ignoring their intense near-term warming.

    What is the significance of the 100-year Global Warming Potential (GWP100)?

    1. Standardization Tool: Enables comparison of different greenhouse gases using a single metric.
    2. Long-Term Bias: Prioritizes long-term climate impacts over short-term warming dynamics.
    3. Methane Misrepresentation: Methane appears less significant when averaged over 100 years.
    4. Policy Implication: Delays urgent action on methane despite its strong short-term effects.
    5. Example: Methane’s high warming effect in the first 20 years is diluted under GWP100 calculations.

    How does the Relative Forcing Accounting (RFA) framework improve measurement?

    1. Dynamic Accounting: Adjusts impact measurement based on physical warming effects over time.
    2. Short-Term Sensitivity: Gives higher weight to short-lived gases like methane.
    3. Atmospheric Reality Alignment: Reflects how long gases remain and affect temperature.
    4. Policy Precision: Enables targeted mitigation strategies based on actual warming impact.
    5. Example: RFA captures methane’s rapid warming and cooling cycle, unlike static GWP metrics.

    What are the implications of underestimating methane emissions?

    1. Climate Risk Amplification: Accelerates near-term global temperature rise.
    2. Policy Misallocation: Resources may be diverted toward less impactful long-term measures.
    3. Carbon Market Distortion: Inaccurate pricing of emissions affects financial flows.
    4. Delayed Mitigation: Slower action on methane reduces chances of limiting warming below 1.5°C.
    5. Data Insight: Study suggests methane accounting may be underestimated by up to 40%.

    How could this shift impact global climate policy and governance?

    1. Policy Recalibration: Shifts focus toward rapid methane reduction strategies.
    2. Climate Targets Revision: Requires re-evaluation of national commitments (NDCs).
    3. Sectoral Focus: Agriculture, waste, and fossil fuel sectors gain prominence in mitigation.
    4. Financial Implications: Alters carbon credit valuation and climate finance priorities.
    5. Example: Landfill and agricultural emissions may receive stricter regulatory attention.

    Does this challenge existing climate frameworks and agreements?

    1. Paris Agreement Limitations: Based on existing accounting methods like GWP100.
    2. Implementation Gap: Current frameworks may not reflect real-time warming dynamics.
    3. Scientific Evolution: Highlights need for updating climate science in policymaking.
    4. Governance Challenge: Balancing simplicity of metrics with scientific accuracy.
    5. Example: Existing emission inventories may need recalibration under RFA-like approaches.

    Conclusion

    Climate accounting frameworks shape global mitigation priorities. Underestimation of methane risks undermining near-term climate goals. Adoption of dynamic frameworks like RFA can improve policy accuracy and enhance climate action effectiveness.

    PYQ Relevance

    [UPSC 2022] Discuss global warming and mention its effects on the global climate. Explain the control measures to bring down the level of greenhouse gases which cause global warming, in the light of the Kyoto Protocol, 1997. 

    Linkage: The PYQ highlights measurement and mitigation of greenhouse gases—core to the article’s debate on flawed carbon accounting. It directly links to need for improved frameworks (like RFA) to accurately guide global climate policy and emission reduction strategies.

  • Why Was a Sloth Bear Captured Near Shivamogga Airport in Karnataka?

    Why in News?

    The Karnataka Forest Department captured a female sloth bear near Shivamogga airport after it entered nearby villages and airport premises, raising concerns about human wildlife conflict.

    What Is Sloth Bear?

    Scientific Name Melursus ursinus
    • Found in Indian Subcontinent
    • Habitat: Dry forests, Grasslands, Scrub forests
    • Known for Insect feeding, Strong claws, and Human conflict incidents

    Conservation Status

    IUCN Status Vulnerable
    Wildlife Protection Act 1972
    • Listed under Schedule I protection

    [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