Every news story that matters for the Environment & Ecology part of UPSC Civil Services GS3 (Economy · S&T · Environment · Security), written for the exam: why in news, background, prelims facts, a practice MCQ and a mains question. 477 notes so far, updated daily.
Why in news: Scientists tracked a pack of African wild dogs completing a record-breaking 2,485-mile trek across Zambia, highlighting wildlife connectivity and poaching risks.
A pack of African wild dogs, including three brothers, traveled 2,485 miles across Zambia to find a mate. The study, published in the journal Ecology, suggests wild dog populations are more connected than previously thought.
Prelims pointers (3)
EnvironmentAfrican wild dogs: Species capable of traversing vast distances despite human pressures and poaching snares.
PlaceZambia: Location of the 2,485-mile trek recorded by scientists.
Fact2,485 miles: The record-breaking distance traveled by the pack in search of a mate.
Mains angle
Q. Discuss the importance of landscape-scale connectivity in wildlife conservation and the limitations of relying solely on protected areas for species survival.
Habitat fragmentation: Isolation of populations due to human-dominated landscapes and infrastructure
Conservation policy: Need for trans-boundary and corridor-based management beyond traditional protected areas
Anthropogenic pressure: Impact of poaching snares on migratory patterns and genetic diversity
Why in news: Ladakh Lieutenant Governor Vinai Kumar Saxena rejected a report on the boundaries of three wildlife sanctuaries
The report concerned the boundaries of Hemis National Park, High Altitude Cold Desert (Changthang) Wildlife Sanctuary, and Karakoram (Nubra-Shyok) Wildlife Sanctuary. The Lieutenant Governor noted that the sub-committee's exercise failed to follow statutory processes under the Wildlife Protection Act.
Prelims pointers (3)
PlaceHemis National Park, High Altitude Cold Desert (Changthang) Wildlife Sanctuary, and Karakoram (Nubra-Shyok) Wildlife Sanctuary are located in Ladakh.
Act / BillThe Wildlife Protection Act governs the statutory processes for sanctuary boundaries and community rights.
FactThe Lieutenant Governor mandated a two-month deadline for resolving local communities' rights.
Mains angle
Q. Discuss the challenges in balancing the conservation of protected areas with the traditional rights of indigenous communities in ecologically sensitive zones like Ladakh.
Legal friction: Conflict between statutory wildlife protection mandates and customary land rights
Security-Conservation nexus: Balancing national security concerns with ecological preservation and local livelihoods
Keywords: Ecologically Sensitive Zones · Customary Rights · Statutory Compliance · Community-led Conservation · Conflict Resolution
Why in news: The rescue of five baby orangutans from Odisha's Bichitrapur forest has triggered an international wildlife trafficking investigation involving Indonesia.
Five baby orangutans were rescued from the Bichitrapur forest in Balasore district, Odisha, on September 8. The animals are native only to Indonesia and Malaysia and are currently under quarantine at Nandankanan Zoological Park in Bhubaneswar.
Prelims pointers (4)
EnvironmentOrangutans are native only to Indonesia and Malaysia
PlaceBichitrapur forest is located in the Balasore district of Odisha
PlaceNandankanan Zoological Park is located in Bhubaneswar, Odisha
FactFive baby orangutans were rescued on September 8
Mains angle
Q. Discuss the challenges in curbing international wildlife trafficking and the importance of international cooperation in protecting endangered species.
Enforcement gap: Difficulty in tracking clandestine cross-border smuggling routes and identifying transit hubs
Diplomatic friction: Complexity of DNA-based evidence for repatriation and legal ownership of smuggled fauna
Why in news: Copernicus reported that August 2026 tied with July 2023 as the hottest month ever recorded, driven by climate change and a strong El Niño event.
The global average temperature for August 2026 was 1.65 degrees Celsius above preindustrial levels. The heat waves resulted in an estimated 35,000 deaths in Europe and caused severe wildfires globally.
Prelims pointers (4)
BodyCopernicus: The climate agency of the European Union
FactAugust 2026 global average temperature: 1.65°C above preindustrial levels
FactHeat wave fatalities: Estimated 35,000 deaths in Europe
S&TEl Niño: A climate phenomenon identified as a factor exacerbating the 2026 heat records
Mains angle
Q. Discuss how the increasing frequency of extreme weather events like heatwaves and wildfires poses a threat to global climate stability and human safety.
Climate feedback loops: El Niño interaction with anthropogenic warming accelerating global temperature anomalies
Humanitarian crisis: Mortality and infrastructure damage from extreme heatwaves in temperate regions
Why in news: The James Dyson Award 2026 recognized 'Circular Design Cement' for using eggshells and oyster shells as recycled aggregates to create stronger, greener cement.
The project replaces conventional aggregates with blast furnace slag cement to reduce carbon emissions. Testing demonstrated bending strengths up to 16.1 N/mm², which exceeds the strength of conventional cement boards.
Prelims pointers (3)
S&TCircular Design Cement uses eggshells, glass, ceramics, and oyster shells as recycled aggregates.
FactThe material achieved bending strengths up to 16.1 N/mm².
S&TThe process involves crushing, cutting, mixing, moulding, and curing to produce boards and tiles.
Mains angle
Q. Discuss how the adoption of circular economy principles in the construction industry can mitigate the environmental impact of infrastructure development in India.
Resource efficiency: Reducing reliance on virgin aggregates through industrial and organic waste valorization
Decarbonization: Lowering the carbon footprint of cement production via blast furnace slag integration
Keywords: Circular Economy · Waste Valorization · Sustainable Construction · Carbon Mitigation · Material Science
Why in news: The Ganga river crossed its highest recorded level at Patna's Gandhi Ghat, impacting over 16.8 lakh people in Bihar and causing significant flooding in Uttar Pradesh.
The floods in Bihar affected 11 districts and impacted 16.8 lakh people. In Uttar Pradesh, 3.53 lakh people were affected and 17,500 individuals were evacuated.
Prelims pointers (4)
FactGanga river reached its highest recorded level at Patna's Gandhi Ghat.
FactFloods between 2000 and 2025 caused $76.95 billion in economic damage in India.
FactA total of 36,103 people died due to floods in India between 2000 and 2025.
FactFloods between 2000 and 2025 affected approximately 36.5 crore individuals.
Mains angle
Q. Analyze the factors contributing to the increasing frequency and severity of riverine floods in the Indo-Gangetic plain and suggest mitigation strategies.
Why in news: A study by Oak Ridge National Laboratory reveals that peatlands can transition from carbon sinks to carbon emitters within just three years of warming.
The SPRUCE project in Minnesota's Marcell Experimental Forest found that even modest temperature increases cause peatlands to release CO2 and methane. These emissions occur at rates five to nearly 20 times faster than historical carbon accumulation.
Prelims pointers (3)
S&TPeatlands are significant terrestrial carbon sinks that store organic matter.
FactWarmed peatlands can become carbon emitters within a three-year period.
EnvironmentPeatlands release both carbon dioxide (CO2) and methane (CH4) when warmed.
Mains angle
Q. Discuss the role of peatlands in global carbon sequestration and the implications of climate-induced warming on their transition into carbon sources.
Why in news: A 'super' El Niño and land-use changes have triggered massive wildfires across Southeast Asia, causing severe air pollution and over 50,000 respiratory cases in Indonesia.
Wildfires in Indonesia, Malaysia, Singapore, and the Philippines have caused millions to be exposed to toxic haze since mid-July. Indonesia's Health Ministry reported over 50,000 respiratory cases, with drained peatlands identified as 'carbon bombs' that intensify the fire risk.
Prelims pointers (3)
EnvironmentPeatlands: Organic soil layers that, when drained, become highly flammable and release significant carbon.
FactIndonesia recorded over 50,000 respiratory cases linked to wildfire haze.
S&TEl Niño: A climate pattern characterized by the warming of surface waters in the eastern Pacific Ocean, often leading to droughts and fires.
Mains angle
Q. Discuss how land-use changes and climate phenomena like El Niño exacerbate air pollution in Southeast Asia. Suggest measures to mitigate the impact of peatland fires.
Why in news: The World Meteorological Organization (WMO) predicted a record-breaking super El Niño, which could accelerate global warming beyond the 1.5°C threshold.
The WMO predicts a nearly 100% likelihood of a super El Niño lasting through February. This phenomenon involves warmer-than-normal ocean temperatures in the eastern tropical Pacific and is expected to cause extreme weather and severe droughts in regions like Sudan and Puerto Rico.
Prelims pointers (3)
S&TEl Niño: Characterized by warmer-than-normal ocean temperatures in the eastern tropical Pacific.
BodyWorld Meteorological Organization (WMO): A specialized agency of the United Nations.
FactThe 1.5°C warming threshold is a key target in the Paris Agreement to limit global temperature rise.
Mains angle
Q. Discuss how extreme climatic phenomena like 'Super El Niño' pose a threat to global climate targets and suggest measures to mitigate their impact on vulnerable regions.
impact on global temperature targets
regional drought and food security
adaptation strategies for vulnerable nations
Keywords: Climate Change · El Niño · Global Warming · Extreme Weather · Climate Resilience
Why in news: The Chintan Research Foundation launched a book highlighting glacier melting and climate adaptation strategies for the Global South to be presented at COP 31.
The book 'Navigating the Climate Crisis' was edited by Dr Debajit Palit and features contributions from 22 scholars. It focuses on climate impacts in Asia and Africa, emphasizing glacier melting and the need for climate finance.
Prelims pointers (3)
PlaceCOP 31: Scheduled to be held in Antalya, Turkey, in November.
FactThe book focuses on climate adaptation and mitigation strategies specifically for the Global South.
S&TGlacier melting is identified as a critical climate impact affecting disaster resilience in Asia and Africa.
Mains angle
Q. Discuss the significance of climate finance and governance frameworks in addressing the disproportionate impact of climate change on the Global South.
Climate justice for Global South
Role of climate finance
Glacier melting and disaster resilience
Way forward: Strengthening international governance
Keywords: Climate Adaptation · Mitigation · Global South · Climate Finance · Disaster Resilience
Why in news: Indonesian forest and peatland fires caused hazardous air quality in Malaysian Borneo, triggering a transboundary haze alert by ASEAN.
Air quality in Kuching reached a Pollutant Index of 407, exceeding hazardous levels. The crisis led to a surge in asthma cases from 219 to 1,811 in a single week.
Prelims pointers (3)
FactKuching recorded an Air Pollutant Index (API) of 407.
Intl. orgASEAN activated its highest transboundary haze alert for the region.
PlaceThe affected region is Malaysian Borneo (Sarawak).
Mains angle
Q. Discuss the challenges of managing transboundary haze in Southeast Asia and the role of ASEAN in ensuring regional environmental cooperation.
transboundary pollution
ASEAN cooperation
impact on public health
peatland management
Keywords: transboundary haze · peatland fires · ASEAN cooperation · public health crisis
Why in news: The India Meteorological Department (IMD) issued a forecast of below-normal September rainfall due to intensifying El Niño conditions.
The IMD projected September rainfall at 91% of the Long Period Average (LPA) of 167.9 mm. August 2024 was recorded as India's hottest month since 1901, with a mean temperature of 28.01°C.
Prelims pointers (4)
BodyIMD: India's primary agency for monitoring and forecasting weather and climate.
S&TEl Niño: A climate pattern involving the warming of surface waters in the eastern tropical Pacific Ocean.
FactAugust 2024 mean temperature: 28.01°C (Normal: 27.34°C).
S&TLPA (Long Period Average): A statistical average of rainfall/temperature over a long period, typically 30 years.
Mains angle
Q. Discuss the impact of El Niño and La Niña phenomena on India's monsoon patterns and suggest measures to mitigate climate-induced agricultural risks.
Why in news: Scientists identified 219 hanging glaciers in Uttarakhand's Alaknanda basin at risk of collapse due to rapid warming, highlighting a significant glacial hazard.
A study by IIT Bhubaneswar identified 219 hanging glaciers covering 71.7 ± 3.5 sq km in the Alaknanda basin. Approximately one-third of these glaciers are classified as unstable due to rising temperatures.
Prelims pointers (4)
PlaceAlaknanda basin is a major glacial basin in the Uttarakhand Himalayas.
S&TGlabTop2 is the tool used by researchers to map and identify hanging glaciers.
BodyWadia Institute of Himalayan Geology (WIHG) is a premier institute for Himalayan geological studies.
BodyUttarakhand State Disaster Management Authority (USDMA) is the nodal body for disaster mitigation in the state.
Mains angle
Q. Discuss the impact of climate change on Himalayan glacial stability and suggest measures for disaster risk reduction in the Himalayan region.
Why in news: Central Railway is adopting vetiver grass plantation as a bio-engineering solution to mitigate soil erosion and landslips in the Western Ghats.
Central Railway plans to plant vetiver grass (Chrysopogon zizanioides) in Bhor Ghat and Thal Ghat. The grass is chosen for its dense root system which stabilizes soil and reduces surface runoff. A pilot plantation of 5,300 sq m has already been initiated.
Prelims pointers (3)
EnvironmentVetiver Grass (Chrysopogon zizanioides) is used for soil stabilization and erosion control.
PlaceBhor Ghat and Thal Ghat are key ghat sections in the Western Ghats connecting the coastal plains to the Deccan Plateau.
FactThe pilot plantation covers an area of 5,300 square meters.
Mains angle
Q. Discuss the role of bio-engineering and nature-based solutions in mitigating geological hazards and infrastructure damage in ecologically sensitive zones like the Western Ghats.
Why in news: The blooming of rare blue-violet flowers resembling Neelakurinji in Kudremukh highlights the need for regulated eco-tourism to preserve fragile biodiversity.
The flowers bloomed in the Kudremukh region of Chikkamagaluru district, Karnataka. The Tourism Department has issued instructions for responsible tourism to prevent environmental damage to these rare blooms.
Prelims pointers (3)
PlaceKudremukh is located in the Chikkamagaluru district of Karnataka.
EnvironmentNeelakurinji (Strobilanthes kunthiana) is known for its rare blooming cycles.
FactSignificant blooms were previously recorded in the region during 2022–23.
Mains angle
Q. Discuss the challenges of balancing eco-tourism with biodiversity conservation in ecologically sensitive zones like the Western Ghats.
Why in news: Scientists are planning to use heat-resistant 'super coral' from Palau to restore Australia's Great Barrier Reef, which is suffering from climate-induced bleaching.
Palau's coral reefs have shown unusual resistance to mass bleaching events compared to the Great Barrier Reef. Scientists in Australia are currently cultivating these resilient coral larvae for reef restoration efforts.
Prelims pointers (3)
EnvironmentGreat Barrier Reef: The world's largest coral reef system, located in the Coral Sea, off the coast of Queensland, Australia.
FactCoral bleaching: A phenomenon where corals expel algae living in their tissues due to environmental stress, primarily rising sea temperatures.
PlacePalau: A Pacific island nation known for its diverse marine biodiversity and coral reef ecosystems.
Mains angle
Q. Discuss the role of coral reef restoration and 'super coral' cultivation in mitigating the impacts of climate change on marine biodiversity.
impact of rising sea temperatures
biological intervention vs. systemic climate action
Why in news: El Niño-induced wildfires in Indonesia have caused a public health crisis, affecting 3.4 million people and necessitating emergency evacuations.
Wildfires in West Kalimantan, Indonesia, have burned for over a month due to El Niño conditions. The fires have impacted 3.4 million people, primarily causing respiratory infections among vulnerable groups like children and pregnant women.
Prelims pointers (3)
S&TEl Niño: A climate pattern involving the unusual warming of surface waters in the eastern and central tropical Pacific Ocean.
Fact3.4 million people in Indonesia are currently at risk of respiratory infections due to wildfire smoke.
PlaceWest Kalimantan: The specific region in Indonesia experiencing severe wildfire-induced evacuations.
Mains angle
Q. Discuss the impact of El Niño-induced wildfires on public health and regional stability. Suggest measures for transboundary cooperation in managing climate-induced disasters.
public health crisis
vulnerability of marginalized groups
climate change adaptation
transboundary haze management
Keywords: El Niño · respiratory health · climate-induced disaster · vulnerable populations · environmental mitigation
Why in news: The US Geological Survey identified a glacial collapse as the cause of flash floods on the Nepal-Tibet border, highlighting the risks of accelerated Himalayan glacier melt.
The flash floods were initially mistaken for an earthquake before being identified as a glacial collapse. Scientists attribute the event to rising temperatures and accelerating glacier melt in the Himalayan region.
Prelims pointers (3)
S&TGlacial collapse: The disintegration of a glacier or a significant portion of it, often leading to sudden flash floods.
PlaceNepal-Tibet border: A region in the Himalayas highly susceptible to glacial lake outburst floods (GLOFs).
FactUS Geological Survey (USGS): The agency responsible for reporting the geological cause of the floods.
Mains angle
Q. Discuss how climate change-induced glacial melting in the Himalayan region poses a significant threat to regional disaster management and water security.
Why in news: The Meghalaya Legislative Assembly passed a resolution opposing uranium mining to address local concerns over health, environmental degradation, and displacement.
The Meghalaya Legislative Assembly formally rejected uranium mining and processing facilities in the state. Identified deposits are located in Domiasiat, Wahkyn, and Nongstoin regions.
Prelims pointers (2)
PlaceDomiasiat, Wahkyn, and Nongstoin are identified uranium-bearing regions in Meghalaya.
FactThe resolution was tabled by Chief Minister Conrad Sangma in the Meghalaya Legislative Assembly.
Mains angle
Q. Discuss the conflict between national mineral extraction goals and local environmental rights in India. How can the state balance industrial development with community-led conservation?
Why in news: Scientists are analyzing why India experienced relatively lower temperatures compared to Europe's record-breaking heatwave, highlighting the role of irrigation and pollution.
Europe faced its worst heatwave on record, causing agricultural collapse and health emergencies. In India, extensive irrigation and air pollution (reflecting sunlight) are identified as factors slowing the rate of warming.
Prelims pointers (3)
S&TAlbedo effect: Air pollution can reflect sunlight, potentially cooling surface temperatures.
FactIrrigation systems increase evaporation, which can influence local and regional temperature profiles.
EnvironmentHeatwaves are a primary driver of agricultural collapse and heat-related health emergencies.
Mains angle
Q. Discuss how anthropogenic factors like irrigation and air pollution influence regional climate patterns and the long-term implications of these factors on India's climate resilience.
Why in news: The birth of Red Panda cubs (Nuba and Numa) at Sikkim's Himalayan Zoological Park marks a significant milestone in the conservation of an endangered species after a seven-year gap.
Red pandas (Ailurus fulgens) are endangered with fewer than 10,000 individuals globally. The Himalayan Zoological Park near Gangtok, Sikkim, initiated its breeding programme in 1997, which faced setbacks due to canine distemper outbreaks.
Prelims pointers (4)
EnvironmentRed pandas (Ailurus fulgens) are primarily herbivores and use their bushy tails for balance and warmth.
FactThe global population of red pandas is estimated to be fewer than 10,000 individuals.
PlaceThe Himalayan Zoological Park is located near Gangtok, Sikkim.
FactApproximately 50% of the red panda's habitat is located in the Eastern Himalayas.
Mains angle
Q. Discuss the challenges faced in ex-situ conservation of endangered species in India and suggest measures to ensure the long-term viability of captive breeding programmes.
genetic diversity maintenance
biosecurity and disease management
habitat preservation in Eastern Himalayas
Keywords: ex-situ conservation · biodiversity loss · captive breeding · biosecurity · endangered species
Why in news: A GEER Foundation study confirmed Khijadiya Bird Sanctuary as a critical breeding site for Black-necked Storks, highlighting successful reproduction due to stable hydrology.
The study was published in the Journal of Threatened Taxa. Between July 2024 and March 2025, four active nests produced eight fledglings with zero mortality. The storks were observed using invasive Neltuma juliflora for nesting.
Prelims pointers (4)
EnvironmentBlack-necked Storks are a significant avian species in Gujarat's wetlands.
PlaceKhijadiya Bird Sanctuary is located in the Jamnagar district of Gujarat.
EnvironmentNeltuma juliflora is an invasive plant species used by storks for nesting.
FactThe study recorded zero nest abandonment or chick mortality during the observation period.
Mains angle
Q. Discuss the role of hydrological stability and habitat management in the conservation of migratory and resident avian species in India's wetlands.
Why in news: A PNAS study highlights that melting Antarctic glaciers are significantly accelerating the release of mercury into the ocean, posing risks to marine ecosystems and human health.
The study, led by Chengzhen Zhou and Maodian Liu, found that mercury accumulation in Antarctic Peninsula sediments has risen by 160% since industrialization. Glacier melt specifically increased mercury release by 550%, threatening marine biodiversity and seafood safety.
Prelims pointers (3)
S&TMercury (Hg) is a heavy metal and a potent neurotoxin that bioaccumulates in marine food chains.
FactAntarctic glacier melt has increased mercury release by 550% according to the PNAS study.
PlaceThe Antarctic Peninsula is a key region for monitoring glacial retreat and polar environmental changes.
Mains angle
Q. Discuss the impact of melting polar ice caps on global marine ecosystems and human health, with special reference to the release of heavy metals like mercury.
bioaccumulation in marine food chains
impact on global food security
need for international cooperation on polar environmental protection
Why in news: Copernicus Climate Change Service reported record-breaking global sea surface temperatures of 21.1°C, highlighting the impact of El Niño and anthropogenic climate change.
The Copernicus Climate Change Service reported a record high sea surface temperature of 21.1°C (69.98°F). This warming trend is expected to persist until January, driven by El Niño and human-induced climate change.
Prelims pointers (3)
FactRecord global sea surface temperature: 21.1°C (69.98°F)
S&TCopernicus Climate Change Service: European Union's Earth observation program
EnvironmentEl Niño: A climate pattern involving the warming of surface waters in the eastern tropical Pacific Ocean
Mains angle
Q. Discuss the impact of rising ocean temperatures on marine biodiversity and coastal economies. Suggest measures to mitigate the effects of anthropogenic climate change.
Why in news: The Supreme Court banned construction and hazardous industries near the Jojari River in Rajasthan to prevent river contamination and protect the livelihoods of two million people.
On August 24, 2026, the Supreme Court (Justices Vikram Nath and Sandeep Mehta) prohibited construction within 100m and hazardous industries within 500m of the Jojari River. The river merges with the Bandi and Luni rivers near Balotra city.
Prelims pointers (3)
PlaceJojari River: A river in Rajasthan that merges with the Bandi and Luni rivers near Balotra.
FactThe court mandated a construction-free zone of 100m and a hazardous industry-free zone of 500m from the river bank.
PostThe order was issued by a Supreme Court Bench of Justices Vikram Nath and Sandeep Mehta.
Mains angle
Q. Discuss the role of the judiciary in balancing industrial development with environmental conservation and the protection of river ecosystems in India.
Judicial activism in environmental protection
Impact on industrial relocation and economic growth
Why in news: A tiger was camera-trapped in the Kishkindha hills after 50 years, highlighting the importance of wildlife corridors and habitat connectivity.
The tiger was captured on camera on August 23, 2026, in the Kishkindha hills of Koppal district. Experts believe the tiger migrated from the Srisailam landscape in Andhra Pradesh via a wildlife corridor.
Prelims pointers (3)
PlaceKishkindha hills are located in the Koppal district of Karnataka.
EnvironmentSrisailam landscape in Andhra Pradesh serves as a significant wildlife corridor for tigers.
FactThe tiger was the first recorded sighting in the area in nearly five decades.
Mains angle
Q. Discuss the significance of wildlife corridors in ensuring the survival of endangered species and the challenges in managing human-wildlife conflict in fragmented habitats.
Why in news: A 2024 study in 'Remote Sensing' highlights how erratic rainfall and climate change are causing significant shifts in the Nilgiri Biosphere Reserve's forest structure.
The study analyzed satellite imagery from 2000 to 2020 to track forest responses to climate change. It specifically identified the Nilgiri Biosphere Reserve (NBR) as a site facing significant disruption due to unpredictable rainfall patterns.
Prelims pointers (3)
PlaceNilgiri Biosphere Reserve is located in the Western Ghats of South India.
EnvironmentBiosphere Reserves are protected areas aimed at conserving biodiversity and promoting sustainable development.
FactThe study utilized satellite imagery spanning a 20-year period (2000-2020).
Mains angle
Q. Discuss how erratic rainfall patterns and climate change are impacting the biodiversity of the Western Ghats and suggest measures for forest conservation.
impact on water security
loss of native forest species
need for climate-resilient conservation strategies
Keywords: climate change · biodiversity loss · water security · remote sensing · ecological disruption
Why in news: An RTI application was filed to check the Assam government's compliance with Central Empowered Committee (CEC) directions regarding mining near Kaziranga National Park.
The CEC criticized the Assam government for failing to address mining issues in the Parkup Pahar Range, a declared wildlife sanctuary and vital ecological corridor. The issue arose during a controversy over plans to reduce the Eco-Sensitive Zone of Kaziranga National Park.
Prelims pointers (3)
PlaceKaziranga National Park is located in Assam and is a major habitat for the one-horned rhinoceros.
BodyThe Central Empowered Committee (CEC) is a body often constituted by the Supreme Court to oversee environmental compliance.
EnvironmentParkup Pahar Range is a declared wildlife sanctuary and a vital ecological corridor in Assam.
Mains angle
Q. Discuss the challenges in balancing industrial mining activities with the preservation of ecologically sensitive zones in India's protected wildlife habitats.
ecological corridor integrity
regulatory oversight by CEC
balancing development vs conservation
transparency in environmental clearances
Keywords: Eco-Sensitive Zone · Ecological Corridor · Regulatory Compliance · Sustainable Development · Biodiversity Conservation
Why in news: The National Green Tribunal (NGT) highlighted severe groundwater contamination by hexavalent chromium in Uttar Pradesh due to decades of improper industrial waste management.
The NGT reported that 62,225 metric tonnes of toxic waste were dumped near Rania, Kanpur Dehat. Government blood tests revealed that 73%-96% of samples in affected areas contained unsafe chromium levels.
Prelims pointers (3)
BodyNational Green Tribunal (NGT): A specialized body for adjudication of environmental disputes.
FactHexavalent Chromium: A toxic heavy metal and industrial byproduct known to cause severe health issues.
PlaceKanpur Dehat: District in Uttar Pradesh identified as a site of significant industrial waste dumping.
Mains angle
Q. Discuss the challenges in managing industrial waste and the long-term impact of heavy metal contamination on public health and groundwater resources in India.
Regulatory gaps in industrial waste management
Public health crisis and healthcare accessibility
Remediation of contaminated groundwater
Way forward: Strengthening the 'Polluter Pays' principle
Keywords: Heavy metal contamination · Groundwater pollution · Industrial waste management · Public health crisis · Environmental justice
Why in news: The Supreme Court set aside a 2017 NGT order against the Art of Living Foundation, ruling that the Yamuna floodplain was already in a dilapidated state before the 2016 World Culture Festival.
The Supreme Court ordered the Delhi Development Authority (DDA) to refund Rs 5 crore in environmental compensation to the Art of Living Foundation. The court found that the National Green Tribunal (NGT) failed to consider evidence of pre-existing damage to the Yamuna floodplain.
Prelims pointers (3)
BodyNational Green Tribunal (NGT): A statutory body established to handle environmental protection cases.
FactThe Supreme Court ordered a refund of Rs 5 crore environmental compensation.
PlaceYamuna floodplain: The site of the 2016 World Culture Festival and the subject of the environmental dispute.
Mains angle
Q. Discuss the challenges in balancing large-scale cultural events with environmental conservation in ecologically sensitive zones like the Yamuna floodplain.
Environmental impact assessment (EIA) integrity
Accountability of civil society organizations
Judicial oversight of environmental damage
Keywords: Environmental Compensation · Ecologically Sensitive Zones · Judicial Review · Pre-existing Damage · Sustainable Development
Why in news: Dr. Shailesh Nayak inaugurated the Centre of Excellence on Blue Economy to promote sustainable marine resource use and ocean technologies.
The centre was inaugurated on August 22, 2026, at Vignan’s University in Vadlamudi, Guntur district. It focuses on coastal conservation, ocean technologies, and integrating blue economy with climate change and ecological balance.
Prelims pointers (3)
PlaceVadlamudi is located in the Guntur district of Andhra Pradesh.
S&TBlue Economy refers to the sustainable use of ocean resources for economic growth.
PostDr. Shailesh Nayak is the Director of the National Institute of Advanced Studies (NIAS), Bengaluru.
Mains angle
Q. Discuss the significance of the 'Blue Economy' in achieving India's sustainable development goals while ensuring coastal conservation and ecological balance.
sustainable marine resource management
mitigation of climate change impacts
technological interventions in oceanography
Keywords: Blue Economy · Coastal Conservation · Sustainable Development · Ocean Technology · Ecological Balance
Why in news: The Central Industrial Security Force (CISF) initiated a river restoration project in Delhi to combat Yamuna riverbank erosion and improve habitat.
The CISF planted 1,000 fruit-bearing and medicinal trees and 100,000 vetiver grass slips at Ganga Vihar, Delhi. The project is modeled after a successful reclamation project in Dhanbad, Jharkhand.
Prelims pointers (3)
BodyCISF: Central Industrial Security Force is a federal paramilitary force under the Ministry of Home Affairs
EnvironmentVetiver grass is commonly used in bio-engineering for soil conservation and erosion control
PlaceGanga Vihar is located near Sarai Kale Khan in Delhi
Mains angle
Q. Discuss the role of community-led and institutional interventions in the ecological restoration of riverine ecosystems in India.
Why in news: Aaranyak launched a project in Khalingduar Reserve Forest to combat invasive alien plants (IAPs) to restore native vegetation and improve elephant habitats.
The project targets invasive species like Lantana camara, Chromolaena odorata, and Mikania micrantha. It utilizes seed-ball-assisted regeneration and biochar production from cleared biomass. The initiative is supported by the International Elephant Foundation.
Prelims pointers (4)
EnvironmentLantana camara and Chromolaena odorata are identified as invasive alien plants (IAPs) in Indian forests.
PlaceKhalingduar Reserve Forest is located under the Dhansiri Forest Division.
FactBiochar production is used as a method to manage biomass from cleared invasive plants.
BodyAaranyak is a Guwahati-based conservation organization.
Mains angle
Q. Discuss the ecological impact of invasive alien plants on India's biodiversity and suggest measures for their effective management in protected areas.
Why in news: Japan's Ministry of the Environment declared the successful eradication of the invasive small Indian mongoose from the UNESCO World Heritage site of Amami Oshima.
The mongoose was introduced in 1979 to control habu snakes but caused severe damage to native wildlife. By 2000, the population reached approximately 10,000 individuals before a long-term trapping campaign led to the last capture in April 2018.
Prelims pointers (3)
EnvironmentSmall Indian mongoose is an invasive species in Japan's Amami Oshima.
PlaceAmami Oshima is a UNESCO World Heritage site in Japan.
FactThe mongoose population in Amami Oshima peaked at around 10,000 by the year 2000.
Mains angle
Q. Discuss the ecological impacts of invasive species on biodiversity and evaluate the importance of biosecurity measures in preserving native ecosystems.
impact on native biodiversity
ecological imbalance
biosecurity and conservation strategies
Keywords: invasive species · biodiversity loss · biosecurity · ecological restoration · UNESCO World Heritage
Why in news: Climate scientists warn that the current El Niño cycle may be the strongest on record, potentially making 2027 the hottest year ever recorded.
El Niño is the warming phase of the El Niño-Southern Oscillation (ENSO) cycle. Current Pacific sea temperatures are 2.6°C above average, with a projected peak of 3.9°C in November. Scientists project 2027 could reach 1.76°C above pre-industrial levels.
Prelims pointers (4)
S&TENSO: El Niño-Southern Oscillation is a natural climate cycle involving the warming of surface waters in the tropical Pacific.
FactNino 3.4 region: An imaginary box in the Pacific used to monitor sea surface temperatures for El Niño tracking.
EnvironmentEl Niño mechanism: Occurs when trade winds ease, allowing warm water to move eastward and rise to the surface.
FactCurrent anomaly: Sea surface temperatures are currently 2.6°C above the 30-year average.
Mains angle
Q. Discuss how extreme climatic phenomena like El Niño exacerbate the impacts of anthropogenic climate change on global biodiversity and food security.
Why in news: The Met Office warned that a developing El Niño event could make 2027 the hottest year on record, impacting global weather patterns including Indian monsoons.
Current sea surface temperatures are over 2°C above normal, with projections to exceed 3°C. El Niño is linked to below-average monsoon rains in India and suppressed hurricane activity in the Atlantic.
Prelims pointers (3)
S&TEl Niño: A climate pattern characterized by the warming of surface waters in the eastern tropical Pacific Ocean.
FactCurrent sea surface temperatures are reported to be over 2°C above normal.
EnvironmentEl Niño impacts include suppressed hurricane activity in the Atlantic and altered monsoon patterns in Asia.
Mains angle
Q. Discuss the impact of El Niño and La Niña on India's monsoon patterns and suggest measures to mitigate the risks of extreme climate variability.
Why in news: The Madras High Court is deliberating on the regulation of construction activities near the Pallikaranai marshland, balancing ecological preservation with urban development.
The Tamil Nadu State Wetlands Authority proposed regulating construction in the Zone of Influence (ZoI) rather than a blanket ban. The National Centre for Sustainable Coastal Management proposed variable ZoI widths, challenging the National Green Tribunal's uniform 1 km ban.
Prelims pointers (4)
PlacePallikaranai marshland is a significant wetland ecosystem located in Chennai, Tamil Nadu.
BodyNational Green Tribunal (NGT) is the primary body for adjudicating environmental disputes in India.
BodyNational Centre for Sustainable Coastal Management (NCSCM) provides technical support for coastal and wetland management.
FactThe current uniform 1 km ban was previously imposed by the National Green Tribunal.
Mains angle
Q. Discuss the challenges in balancing rapid urban infrastructure development with the preservation of critical wetland ecosystems in India.
ecological impact of urban sprawl
regulatory framework of NGT
scientific zoning vs. blanket bans
sustainable urban planning
Keywords: Zone of Influence · Wetland Conservation · Sustainable Development · Regulatory Framework · Ecological Balance