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

  • Bird Deaths in Thar Desert

    Why in the News?

    A new study by the Wildlife Institute of India (WII) reveals that wind farms in the Thar Desert, Rajasthan, have the highest recorded bird mortality rates globally.

    Bird Deaths in Thar Desert

    Bird Mortality at Wind Farms: Key Findings

    • Study Details: Conducted across 3,000 sq. km in Jaisalmer, Rajasthan, covering 90 wind turbines and 272 bird species, including the critically endangered Great Indian Bustard.
    • Carcass Count: 124 bird carcasses found within 150m radius of turbines.
    • Annual Mortality Estimate: 4,464 birds per 1,000 sq. km, after corrections for detection gaps and scavenger interference.
    • Control Sites: 28 sites (500–2,000m from turbines) found zero carcasses — indicating turbines as the direct cause.
    • Reasons:
      • Policy Gap: Onshore wind projects in India do not require Environmental Impact Assessments (EIAs), which weakens ecological safeguards.

    India’s Wind Energy Growth:

    • Current Status: India added 3.5 GW of wind power in the first half of 2025 — an 82% YoY increase.
    • Total Installed Capacity: Now stands at 51.3 GW.
    • Untapped Potential: Estimated at 1163.9 GW at 150 meters above ground level (National Institute of Wind Energy).

    Comparison with Past Studies:

    • 2019 Studies: Recorded just 0.47 bird deaths per turbine/year in Kutch and Davangere.
    • Thar Desert Rate: 1.24 bird deaths per turbine/month — significantly higher.
    • Contributing Factors:
      • High bird density in Thar.
      • Location along Central Asian Flyway.
      • Collisions with turbine-linked power lines included in this study.

    Proposed Mitigation Measures:

    • Technological:
      • Paint one turbine blade for visibility.
      • Shut down turbines during peak migration or high-risk periods.
    • Planning-Based:
      • Careful Site Selection seen as most critical step.
      • Use of tools like AVISTEP (Avian Sensitivity Tool for Energy Planning), which maps avian sensitivity across India.
      • AVISTEP ranks zones as low to very high sensitivity — intended as a guide for site avoidance.
    [UPSC 2012] Vultures which used to be very common in Indian countryside some years ago are rarely seen nowadays. This is attributed to:

    Options: (a) the destruction of their nesting sites by new invasive species disease among them

    (b) a drug used by cattle owners for treating their diseased cattle persistent and fatal *

    (c) scarcity of food available to them

    (d) a widespread, persistent and fatal disease among them

     

  • Species in news: Alpine Musk Deer

    Why in the News?

    A Central Zoo Authority (CZA) report reveals a major conservation error — the critically endangered Alpine musk deer was wrongly replaced by the Himalayan musk deer in India’s breeding programmes.

    Species in news: Alpine Musk Deer

    Back2Basics: Central Zoo Authority (CZA):

    • Establishment: Formed in 1992 under Wildlife (Protection) Act, 1972.
    • Mandate: Captive breeding, zoo oversight, and assigning species to zoos.
    • Expanded Scope (2022): Includes rescue centres, off-display facilities, and conservation breeding centres.

    About Alpine Musk Deer (Moschus chrysogaster):

    • Not a true Deer: closer to goats and antelopes (Bovidae).
    • Musk Sac: Males have a visible musk sac between the testes.
    • Canines: Grows fang-like canines during the mating season.
    • Habitat: Found at 3,000–5,000 m in forests of the Himalayas.
    • Range: India (J&K, HP, Uttarakhand, Sikkim, Arunachal), Nepal, Bhutan, China.
    • Diet: Eats grasses, leaves, lichens, mosses, and twigs.
    • Behaviour: Solitary and crepuscular (active at dawn/dusk).
    • Legal Protection:  IUCN Status Critically Endangered (2014), CITES Appendix I; Indian Wildlife Act- Schedule I.
    • Threats: Poaching for musk and habitat loss.
    • Key Habitats: Askot, Gangotri & Kedarnath Wildlife Sanctuaries (Uttarakhand).
    [UPSC 2020] Which of the following are the most likely places to find the musk deer in its natural habitat?

    1. Askot Wildlife Sanctuary 2. Gangotri National Park

    3. Kishanpur Wildlife Sanctuary 4. Manas National Park

    Options: (a) 1 and 2 only * (b) 2 and 3 only (c) 3 and 4 only (d) 1 and 4 only

     

  • Why the ICJ’s advisory opinion on climate change opens the window for a new, restorative vision of environmental law in India

    Why in the News?

    Recently, the International Court of Justice (ICJ) delivered a landmark advisory opinion on July 23, 2025, clarifying the legal obligations of states regarding climate change.

    Note: The International Court of Justice (ICJ) is the principal judicial organ of the United Nations. While advisory opinions are not formally binding, they hold persuasive (Convince other) legal weight and reflect the Court’s authoritative interpretation of international law.

    What does the ICJ say about saving nature and the climate?

    • Nature is a climate actor, not just a victim: ICJ recognizes ecosystems like forests, oceans, and coral reefs as active parts of the climate system. Eg: Forests absorb CO₂ and regulate rainfall.
    • Protecting nature is a legal climate duty: Countries have a responsibility to safeguard nature as part of their climate obligations. Eg: Wetlands must be preserved to manage floods and store carbon.
    • Ecological literacy is essential: Decision-makers must understand ecosystem roles in climate regulation. Eg: Mangrove destruction worsens storm impact and carbon release.
    • Biodiversity and climate are equal: Climate action must not come at the cost of biodiversity. Eg: Solar parks should not destroy grasslands or wildlife zones.
    • Global justice includes nature’s rights: The ICJ promotes a shift from human-centred to eco-centred justice. Eg: Legal personhood to rivers (like Ganga) aligns with this approach.

    How can India align the ICJ view with Articles 21 and 48A of the Constitution?

    • Recognize environmental rights as part of Right to Life (Article 21): Link clean air, water, and a healthy ecosystem to the fundamental right to life. Eg: Supreme Court’s recognition of the right to a healthy environment in the Subhash Kumar case.
    • Implement Directive Principle on environment (Article 48A): Strengthen policies to protect and improve forests, rivers, and biodiversity. Eg: Initiatives like Namami Gange align with this duty.

    What are the roles of Tribals in India’s climate plans?

    The roles of tribals in India’s climate plans are crucial because they are deeply connected with nature and are key to conservation and climate resilience.

    • Traditional Ecological Knowledge: Tribals have deep understanding of local ecosystems, useful for conservation and climate adaptation. Eg: Bhil tribes, Madhya Pradesh – traditional water harvesting for drought resilience.
    • Forest and Biodiversity Guardianship: Indigenous communities act as forest protectors and biodiversity custodians, aiding carbon sequestration. Eg: Dongria Kondh, Odisha – protect Niyamgiri Hills’ biodiversity.
    • Sustainable Livelihood Practices: Tribes follow low-carbon, eco-friendly practices, supporting climate goals. Eg: Apatani tribe, Arunachal Pradesh – eco-friendly wet rice farming (growing rice in flooded fields).
    • Community-Based Climate Adaptation: Local innovation enables faster climate resilience and resource management. Eg: Women in Kutch, Gujarat – build check dams for water security.
    • Effective Implementation of Climate Schemes: Grassroots involvement improves policy success, ensures inclusive development. Eg: Van Dhan Yojana – empowers tribal collectives for sustainable forest use.

    Which laws should India improve to better protect nature and fight climate change?

    • Strengthen Environmental Impact Assessment (EIA): Make public consultations more transparent and science-based. Eg: Dilution in EIA 2020 draft faced criticism for reducing oversight on polluting projects.
    • Amend Forest Conservation Act (FCA): Ensure tribal rights and ecological value are protected during land diversion. Eg: FCA 2023 allowed exemptions for some forest lands, risking biodiversity loss.
    • Update Air (Prevention and Control of Pollution) Act, 1981: Include stricter penalties and real-time monitoring for industrial emissions. Eg: Delhi’s recurring smog highlights the law’s limited deterrence.

    Way forward:

    • Empower Local Communities: Recognize and support tribal and grassroots climate efforts through legal rights, funding, and capacity building.
    • Mainstream Climate in Policy Planning: Integrate climate adaptation and mitigation into urban planning, agriculture, and infrastructure development.
    • Promote Green Finance and Innovation: Incentivize clean technologies, nature-based solutions, and public-private partnerships for sustainable development.

    Mains PYQ:

    [UPSC 2023] The most significant achievement of modern law in India in the constitutionalization of environmental problems by the Supreme Court. Discuss this statement with the help of relevant case laws.

    Linkage: The article highlights that India’s Supreme Court has interpreted Article 21 (right to life) to include the right to a healthy environment, and the ICJ’s opinion internationalizes this idea, providing a strong basis for India’s legal framework to embrace a restorative vision.

  • [31st July 2025] The Hindu Op-ed: Restoring mangroves can turn the tide on India’s coastal security 

    PYQ Relevance:

    [UPSC 2019] Discuss the causes of depletion of mangroves and explain their importance in maintaining coastal ecology.

    Linkage: The article explicitly details the importance of mangroves, stating they are “critical in India’s pursuit of climate resilience, biodiversity conservation, and the empowerment of coastal communities”. It explains their role as “natural barriers, protecting coastal communities from cyclones, tidal surges, and erosion”, and their significance in “biodiversity conservation”. The article also discusses the threats leading to their “depletion,” such as “urban expansion, aquaculture, pollution, and changing climate patterns”.

     

    Mentor’s Comment:  India’s mangrove forests have come into focus due to growing efforts to restore and protect them amid increasing threats from urban expansion, climate change, and pollution. Recent successful restoration projects in Tamil Nadu, Gujarat, and Mumbai, along with support from government missions and private partners, highlight India’s growing role in mangrove conservation. These forests are vital for climate resilience, coastal protection, and biodiversity, making their preservation a national priority.

    Today’s editorial analyses India’s growing efforts to restore mangrove forests. This topic is important for GS Paper III (Environment) in the UPSC mains exam.

    _

    Let’s learn!

    Why in the News?

    Recently, mangrove restoration efforts in Tamil Nadu, Gujarat, and Mumbai have been successful.

    What is the extent of Mangroves in India?

    • India’s total mangrove cover is 4,992 sq km, accounting for 0.15% of the country’s geographical area (as per ISFR 2021).
    • West Bengal, Gujarat, and the Andaman & Nicobar Islands hold the largest mangrove areas, with West Bengal (Sundarbans) alone covering over 42% of the total.

    Why are mangroves vital for climate and coastal resilience in India?

    • Natural Coastal Shield: Mangroves act as buffers against cyclones, storm surges, and coastal erosion. Eg: During the 2004 tsunami, villages protected by mangroves in Tamil Nadu suffered less damage compared to those without them.
    • Climate Change Mitigation: They store “blue carbon” in biomass and deep soil, helping to absorb excess CO₂. Eg: India’s mangroves contribute significantly to carbon sequestration, aiding in climate targets under the Paris Agreement.
    • Biodiversity Hotspots: Provide breeding grounds for fish, crabs, birds, and other marine life. Eg: Thane Creek Flamingo Sanctuary in Mumbai supports over 180 bird species due to nearby mangroves.
    • Livelihood Support for Communities: Sustain traditional occupations like fishing, honey gathering, and crab farming. Eg: Sunderbans communities rely on mangroves for fishing and honey collection.
    • Disaster Risk Reduction: Reduce the impact of natural disasters by slowing floodwaters and stabilising shorelines. Eg: In Odisha, mangroves helped minimise damage during Cyclone Phailin (2013).

    What threatens India’s mangroves?

    • Urbanisation and Industrial Expansion: Mangrove areas are cleared for ports, housing, and industrial zones. Eg: Mangrove loss in Mumbai due to Navi Mumbai airport construction.
    • Aquaculture and Agriculture Encroachment: Conversion of mangrove land into shrimp farms or paddy fields disrupts ecosystems. Eg: Andhra Pradesh lost mangroves to extensive aquaculture projects.
    • Pollution: Discharge of industrial effluents, plastic, and sewage harms mangrove health. Eg: Thane Creek, Mumbai, faces heavy pollution impacting biodiversity.
    • Climate Change and Sea Level Rise: Changes in salinity, temperature, and rising sea levels affect mangrove regeneration. Eg: Sundarbans face submergence and loss due to rising sea levels.
    • Overexploitation of Resources: Excessive collection of wood, honey, and fodder leads to degradation. Eg: In West Bengal, unsustainable practices by local communities reduce forest cover.

    How has community involvement aided mangrove restoration in Tamil Nadu?

    • Collaborative Restoration Projects: Community members partnered with institutions like the M.S. Swaminathan Research Foundation and the Tamil Nadu Forest Department for restoring degraded mangroves. Eg: In Muthupettai’s Pattuvanachi estuary, locals helped implement a 115-hectare restoration plan.
    • Tidal Canal Digging for Hydrology Restoration: Villagers participated in digging 19 major canals to restore natural tidal flow, crucial for mangrove survival. Eg: This intervention successfully revived water movement in Muthupettai, enabling mangrove regrowth.
    • Seed Collection and Plantation: Locals actively collected and planted seeds of native mangrove species like Avicennia and Rhizophora. Eg: Over 4.3 lakh Avicennia seeds and 6,000 Rhizophora propagules were planted by community members.
    • Removal of Invasive Species: Community groups helped clear invasive weeds like Prosopis juliflora, which compete with mangroves for space and nutrients. Eg: In Kazhipattur near Buckingham Canal, Chennai, invasive plants were removed before mangrove restoration began.
    • Support for Green Missions and Monitoring: Local residents supported and maintained mangrove cover under the Green Tamil Nadu Mission, ensuring long-term success. Eg: Community participation helped double Tamil Nadu’s mangrove area from 4,500 ha to 9,000 ha (2021–2024).

    What is the role of corporate partnerships in mangrove revival in Mumbai?

    • Financial and Technical Support: Amazon’s Right Now Climate Fund invested $1.2 million (₹10.3 crore) in a restoration project along Thane Creek, enabling large-scale ecological rehabilitation.
    • Pollution Control and Ecosystem Restoration: Partnered with Hasten Regeneration and Brihanmumbai Municipal Corporation to install trash booms that intercept plastic waste, aiming to collect 150 tonnes over 3 years while planting 3.75 lakh mangrove saplings.
    • Community Empowerment and Livelihood Generation: Created paid employment opportunities for local women in planting and maintenance, linking ecological recovery with socio-economic upliftment.

    Why is Gujarat leading in mangrove restoration?

    • Ambitious Scale under MISHTI Scheme: Under the Mangrove Initiative for Shoreline Habitats and Tangible Incomes (MISHTI), launched in 2023, Gujarat planted over 19,000 hectares of mangroves within two years—far exceeding the national five-year target of 54,000 hectares.
    • Strategic Coastal Coverage & Biodiversity Focus: Gujarat holds about 23.6% of India’s total mangrove cover, with major plantations in Kutch, Bhavnagar, Surat, and Dumas-Ubhrat. These areas support critical ecological balance, biodiversity, and local livelihoods.
    • Strong Governance, Planning & Local Institutional Support: Efficient coordination between the Gujarat Forest Department, state environment agencies, and local communities has ensured success. Structured coastal mapping, restoration planning, and promotion of ecotourism-linked livelihoods have further strengthened outcomes.

    What are the steps taken by the Indian government? 

    • Green India Mission & State Missions: Through the National Green India Mission and state-level initiatives like the Green Tamil Nadu Mission, the government supports afforestation, ecosystem restoration, and community-based conservation efforts.
    • Inclusion in Coastal Regulation Zone (CRZ) Rules: Mangrove areas are designated as Ecologically Sensitive Zones (ESZ) under the CRZ Notification, restricting construction and promoting their protection through legal safeguards and regulatory oversight.

    Way forward: 

    • Strengthen Community-Based Conservation: Empower local communities through training, incentives, and formal roles in monitoring and maintaining mangroves to ensure sustainable, long-term protection.
    • Integrate Mangroves into Climate and Development Planning: Recognise mangroves as vital climate infrastructure by integrating them into coastal zone management, disaster resilience strategies, and carbon credit frameworks.

  • New Guidelines for Management of Contaminated Sites

    Why in the News?

    The Union Environment Ministry has notified the Environment Protection (Management of Contaminated Sites) Rules, 2025 under the Environment (Protection) Act, 1986.

    About the Environment Protection (Management of Contaminated Sites) Rules, 2025:

    • Nodal Agency: Ministry of Environment, Forest and Climate Change (MoEFCC).
    • Legal Basis: Framed under the Environment (Protection) Act, 1986.
    • Purpose: India’s first dedicated legal framework to identify, clean up, and monitor contaminated sites.
    • Goal: Prevent environmental degradation, enforce clean-up, and ensure polluter accountability.
    • Funding Pattern:
      • Himalayan & Northeast states: 90% Centre – 10% State
      • Other states: 60% Centre – 40% State
      • Union Territories: 100% Centre

    Key Features:

    • Site Classification: Sites categorized as suspected, potentially contaminated, or confirmed, based on scientific evidence.
    • Exclusions: Sites involving radioactive waste, mining, marine oil spills, or municipal solid waste (regulated separately).
    • Transparency & Tracking: Central Pollution Control Board (CPCB) to maintain a real-time online portal with public access.
    • Public Participation:
      • 60-day window for stakeholder feedback post-listing.
      • Final site lists must be published in regional newspapers.
    • Polluter Pays Principle:
      • Identified polluters must bear full remediation cost and repay within 3 months.
      • Land use changes or ownership transfers restricted during/post clean-up.
    • Orphan Sites (No Known Polluter): Clean-up funded through:
      • Environment Relief Fund
      • Environmental violation penalties
      • Government budgetary support
    • Voluntary Remediation: Private entities with technical capacity may remediate sites with landowner consent.
    • Monitoring Committees: State and Central-level bodies to oversee implementation and submit annual compliance reports.

    Back2Basics: Environment (Protection) Act, 1986

    • Enactment: In response to the Bhopal Gas Tragedy; derives authority from Article 253 of the Constitution.
    • Objective: To protect and improve the environment and prevent hazards to life and property.
    • Significance: Acts as India’s umbrella environmental legislation, coordinating with the Water Act (1974) and Air Act (1981).
    • Key Provisions:
      • Pollution standards via Environment (Protection) Rules.
      • Hazardous Waste Rules, 1989 – manage toxic waste.
      • Chemical Safety Rules – control handling of hazardous chemicals.
      • Cells Rules, 1989 – govern gene tech and genetically modified organisms.
    • Power: Empowers the Central Government to act directly for environmental protection.

     

    [UPSC 2019] Consider the following statements:

    The Environment Protection Act, 1986 empowers the Government of India to:

    1. State the requirement of public participation in the process of environmental protection, and the procedure and manner in which it is sought.

    2. Lay down the standards for emission or discharge of environmental pollutants from various sources.

    Which of the statements given above is/are correct?

    Options: (a) 1 only (b) 2 only* (c) Both 1 and 2 (d) Neither 1 nor 2

     

  • Grassland Bird Census in Kaziranga

    Why in the News?

    The Prime Minister recently highlighted a first-of-its-kind grassland bird census in Kaziranga National Park, Assam.

    About the Bird Census:

    • Significance: India’s first-ever dedicated census of grassland birds
    • Led by: Chiranjib Bora (PhD scholar), supported by INSPIRE Fellowship from the Department of Science & Technology
    • Organised by: Park authorities, scientists, and conservationists
    • Objective:
      • Document rare, endemic, and threatened grassland bird species
      • Focused on 10 priority species endemic to the Brahmaputra floodplains

    Methodology Used:

    • Passive Acoustic Monitoring (PAM):
      • Recording devices placed in tall trees during breeding season
      • Recordings captured across 29 locations over 3 days
      • Ideal for detecting small, shy, camouflaged birds not easily visible
    • Sound Identification Tools:
      • BirdNet: Machine learning tool used to identify bird calls
      • Spectrograms: Visual analysis of sound patterns; Final identifications verified by ornithologists

    Key Findings:

    • Total Species Recorded: 43 grassland bird species
    • Priority Species Identified: Bengal Florican, Swamp Francolin, Finn’s Weaver, Jerdon’s Babbler, Black-breasted Parrotbill, among others
    • Major Discovery: A breeding colony of over 85 Finn’s Weaver nests—first-ever documentation
    [UPSC 2014] If you walk through countryside, you are likely to see some birds stalking alongside the cattle to seize the insects disturbed by their movement through grasses. Which of the following is/are such bird/birds?

    1. Painted Stork  2. Common Myna  3. Black-necked Crane

    Options: (a) 1 and 2 (b) 2 only* (c) 2 and 3 (d) 3 only

     

  • In news: Kyoto Protocol

    Why in the News?

    Vijai Sharma, a 1974-batch IAS officer and architect of India’s climate diplomacy, who helped shape the Kyoto Protocol for safeguarding the interests of developing countries like India, has passed away.

    About Kyoto Protocol:

    • Adopted: 11 December 1997 (UNFCCC COP-3, Kyoto, Japan); Came into Force: 16 February 2005
    • Legal Status: Legally binding on developed (Annex I) countries
    • Parent Treaty: United Nations Framework Convention on Climate Change (1992)
    • Objective: Reduce greenhouse gas emissions and address climate change
    • Principle: Common but Differentiated Responsibilities and Respective Capabilities (CBDR-RC)
    • Parties: 192 ratified; key non-parties include United States and Canada

    Key Features:

    • Emission Targets:
      • Annex B nations to cut emissions by 5% below 1990 levels (2008–2012)
      • Doha Amendment (2012): 18% cut for 2013–2020
    • Greenhouse Gases Covered:
      • Carbon dioxide, Methane, Nitrous oxide, Hydrofluorocarbons, Perfluorocarbons, Sulfur hexafluoride
    • Market Mechanisms:
      • Clean Development Mechanism (CDM): Carbon credits via projects in developing nations
      • Joint Implementation (JI): Emission reduction between Annex I countries
      • International Emissions Trading: Trade surplus emission units
    • Monitoring and Enforcement:
      • Mandatory reporting and independent verification
      • Compliance Committee oversight
      • Land Use, Land-Use Change and Forestry (LULUCF) included; aviation/shipping excluded
    • Equity Element:
      • No binding targets for developing nations like India and China
      • Developed nations held accountable for historical emissions

    Vijai Sharma’s Contributions:

    • Climate Negotiations Leader: India’s chief negotiator (1995–2001), led G77+China, defended equity and exemptions for developing nations
    • Policy Architect: Helped shape CDM governance, promoted India’s clean-tech access
    • Environmental Reformer: As Environment Secretary (2008–2010), improved clearance processes
    • Legacy: Called “Sir Humphrey Sharma” for his sharp wit and bureaucratic skill; key figure in India’s Kyoto-era climate diplomacy
    [UPSC 2016] Consider the following pairs:

    Terms sometimes seen in the news : Their origin

    1. Annex-I Countries : Cartagena Protocol

    2. Certified Emissions Reductions : Nagoya Protocol

    3. Clean Development Mechanisms : Kyoto Protocol

    Which of the pairs given above is/are correctly matched?

    Options: (a) 1 and 2 only (b) 2 and 3 only (c) 3 only* (d) 1, 2 and 3

     

  • Sundarbans set to become India’s Second-Largest TR

    Why in the News?

    The proposal to expand the Sundarbans Tiger Reserve by 1,100 sq km has received clearance from the National Tiger Conservation Authority (NTCA) and awaits approval from National Board for Wildlife (NBWL).

    Sundarbans set to become India’s Second-Largest TR

    About Sundarbans Tiger Reserve (STR):

    • Location: Situated in South and North 24-Parganas districts, West Bengal; lies at the southern tip of the Gangetic Delta.
    • Area: Presently 2,585.89 sq km; expansion to 3,629.57 sq km under proposal.
    • Status: Notified as a Tiger Reserve, National Park, Biosphere Reserve; part of the UNESCO World Heritage Site.
    • Unique Feature: World’s only mangrove forest with a viable tiger population.
    • Tiger Count: Over 100 tigers – 80 in core area, 21 in adjoining forests.
    • Landscape: Interconnected estuaries, tidal creeks, and 105 mangrove-covered islands.
    • Flora: Dominated by mangrove species like Avicennia, Rhizophora, Heritiera.
    • Fauna: Includes Royal Bengal Tigers, Fishing Cats, Estuarine Crocodiles, Irrawaddy Dolphins, King Cobras, and endangered reptiles and birds.
    • Boundaries:
      • East: Bangladesh border (Raimangal, Harinbhanga rivers)
      • South: Bay of Bengal
      • North/West: Matla, Bidya, Gomdi Rivers

    Back2Basics: Tiger Reserves in India

    • Overview: A Tiger Reserve is a legally notified area under the Wildlife (Protection) Act, 1972 for the conservation of tigers and biodiversity.
    • Governing Authority: National Tiger Conservation Authority (NTCA), Ministry of Environment, Forest and Climate Change.
    • Origin: Initiated under Project Tiger, launched in 1973.
    • Structure:
      • Core Zone: Highly protected; no human activity allowed; declared as National Park or Sanctuary.
      • Buffer Zone: Surrounds core; allows regulated human use and supports conservation-compatible livelihoods.

    Tiger Reserve Landscape in India (as of 2025):

    • Total Reserves: 58 (up from 46 in 2014)
    • Largest Reserve: Nagarjunasagar-Srisailam, Andhra Pradesh – 3,727.82 sq km
    • Oldest Reserve: Corbett Tiger Reserve, Uttarakhand – established in 1973
    • Newest Reserves: Guru Ghasidas (Chhattisgarh), Ranipur (Uttar Pradesh), Ramgarh Vishdhari (Rajasthan)
    • Top State: Madhya Pradesh – 7 Tiger Reserves
    • Tiger Density: Bandipur TR > Corbett TR > Kaziranga TR (148, 18.6 tigers/sq. km.)
    • Global Tiger Day: Celebrated on 29th July every year

     

    [UPSC 2020] Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”?”

    Options: (a) Corbett (b) Ranthambore (c) Nagarjunsagar-Srisailam* (d) Sunderbans

     

  • The scientist who made ‘mangroves’ a buzzword

    Why in the News?

    World Mangrove Day was observed on July 26. The occasion also recalled the pioneering role of M.S. Swaminathan in promoting mangrove conservation through initiatives like the International Society for Mangrove Ecosystems (ISME), GLOMIS, and the fishbone canal method of restoration.

    Role of M.S. Swaminathan in mangrove conservation

    • As early as 1989, he advocated using mangroves for climate resilience in coastal areas.
    • Proposed developing salinity-tolerant crops (e.g., rice) using mangrove genes.
    • Played a key role in founding the International Society for Mangrove Ecosystems (ISME) in 1990, promoting global knowledge exchange.
    • Co-authored the Charter for Mangroves, which was later included in the World Charter for Nature (1992) by the UN.
    • Led Community-Based Restoration in India through the M.S. Swaminathan Research Foundation (MSSRF).

    What is the ‘fishbone canal’ method? What are its advantages?

    The method mimics the natural branching pattern of rivers. It allows tidal waters to penetrate deep into degraded mangrove areas. Eg: In Tamil Nadu’s Pichavaram, fishbone canals revived previously stagnant mangrove zones, promoting natural seed dispersal.

    Advantages of the method

    1. Facilitates Natural Regeneration: By improving hydrology, it creates conditions suitable for natural mangrove seedling establishment without extensive manual planting. Eg: In Odisha’s Bhitarkanika, the method led to spontaneous growth of native mangrove species.
    2. Cost-Effective: Compared to large-scale planting, this method is less resource-intensive 
    3. It preserves ecosystem integrity.

    How have global and national initiatives reshaped mangrove management?

    • Shift Towards Community-Based Conservation: Focus has moved from government-led to community-driven models, recognising local knowledge and stakeholder participation. Eg: Eg: Sundarbans’ Joint Forest Committees empower villagers in conservation.
    • Integration with Climate Resilience Strategies: Mangroves are now seen as vital for disaster risk reduction and carbon sequestration. Eg: Indonesia’s “Mangroves for Coastal Resilience” project links mangrove conservation with coastal protection and blue carbon goals.
    • Technological Interventions and Scientific Planning: Use of GIS mapping, remote sensing, and hydrological modelling has made restoration more precise and scalable. Eg: In Andhra Pradesh, the Integrated Coastal Zone Management Project used satellite data to identify degraded mangrove areas for targeted restoration.

    How did India’s mangrove policy evolve post-1980 ?

    • CRZ Inclusion (1991): Mangroves declared ecologically sensitive under CRZ Rules, restricting commercial activity.
    • Post-Tsunami Shift (2004): Indian Ocean Tsunami highlighted mangroves as bio-shields, leading to their inclusion in disaster risk and coastal zone policies.
    • Boost in Support (Post-2005): Initiatives like the National Coastal Mission and remote sensing-based mapping promoted monitoring and restoration.

    What are ISME and GLOMIS?

    • ISME (International Society for Mangrove Ecosystems) is a global non-profit organization founded in 1990 to promote the conservation, restoration, and sustainable use of mangrove ecosystems through research, training, and international cooperation. It also offers technical support and capacity building for sustainable mangrove management.
    • GLOMIS (Global Mangrove Database and Information System), developed by ISME, is a centralized database that provides scientific data, GIS mapping, and case studies to support effective mangrove management and policymaking worldwide. GLOMIS serves as a database for mangrove species, restoration efforts, and GIS data.

    Way forward: 

    • Strengthen Community-Based Restoration: Empower local communities through training, sustainable livelihood support, and participation in restoration using techniques like the ‘fishbone canal’ method for greater ecological success.
    • Leverage Technology and Global Networks: Use remote sensing, GIS, and platforms like GLOMIS for monitoring mangrove health, while collaborating with international bodies like ISME to adopt best global practices.

    Mains PYQ:

    [UPSC 2019] Discuss the causes of depletion of mangroves and explain their importance in maintaining coastal ecology.

    Linkage: This question is directly and explicitly about mangroves, focusing on two key aspects: their depletion and their importance in maintaining coastal ecology. The fact that such a detailed question appeared in the examination signifies the recognized environmental importance and public awareness surrounding mangroves. A scientist’s work to popularize mangroves would logically contribute to this level of public and academic interest.

  • Ramsar COP15 opens in Zimbabwe

    Why in the News?

    Delegates from 172 countries convened in Victoria Falls, Zimbabwe, for the 15th Meeting of the Conference of the Contracting Parties (COP15) to the Ramsar Convention on Wetlands.

    Highlights of Ramsar COP15

    • Theme: Protecting Wetlands for Our Common Future
    • Host Nation: Zimbabwe (holds presidency of the Ramsar Convention for 3 years)
    • Expected Outcome: Adoption of the Victoria Falls Declaration, a global framework to protect wetlands

    About the Ramsar Convention:

    • Adopted on: 2 February 1971, in Ramsar, Iran.
    • Objective: Conserve and ensure the wise use of wetlands globally.
    • Key Functions:
      • Identify wetlands of international importance.
      • Promote sustainable management practices.
      • Foster international cooperation in wetland conservation.
    • Governing Body:
      • Conference of the Contracting Parties (COP) meets every 3 years.
      • Reviews implementation, adopts site designations, budgets, and policy actions.
      • Includes member + non-member states, IGOs, and NGOs as observers.

    Criteria for Ramsar Site Designation:

    A wetland must meet at least one of the following 9 criteria:

    1. Unique or rare wetland type.
    2. Habitat for endangered, vulnerable, or endemic species.
    3. Crucial for migratory waterbirds.
    4. High ecological, hydrological, or biodiversity value.
    5. Supports ecosystem services (e.g., flood control, water purification).
    6. Provides cultural or spiritual value.
    7. Serves sustainable community livelihoods.
    8. Holds scientific or educational importance.
    9. Requires global cooperation due to threats.

    India and the Ramsar Convention:

    • Joined on: 1 February 1982.
    • First Ramsar Site: Chilika Lake (Odisha), 1981.
    • As of July 2025:
      • Total sites: 91
      • Total area: ~13.58 lakh hectares
      • % of India’s wetland area under Ramsar: ~10%
    • Top States: Tamil Nadu: 20 sites (highest); Uttar Pradesh: 10 sites
    • Note: India has never chaired a Ramsar COP session.

    Global Snapshot and Other Facts:

    • Total Members: 171 countries.
    • Leading Countries:
      • United Kingdom: 175 sites (most)
      • Mexico: 142 sites
      • Bolivia: Largest area (~1.48 lakh sq. km under protection)
    • World Wetlands Day: Celebrated on 2 February annually.
    • Montreux Record: Register for Ramsar sites under serious threat needing urgent conservation.
    [UPSC 2019] Consider the following statements:

    1. Under Ramsar Convention, it is mandatory on the part of the Government of India to protect and conserve all the wetlands in the territory of India.

    2. The Wetlands (Conservation and Management) Rules, 2010 were framed by the Government of India based on the recommendations of Ramsar Convention.

    3. These Rules also encompass the drainage area or catchment regions of the wetlands as determined by the authority.

    Which of the statements given above is / are correct?

    Options: (a) 1 and 2 only (b) 2 and 3 only (c) 3 only* (d) 1, 2 and 3