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. 457 notes so far, updated daily.
Why in news: The Government of India highlighted the growth of the Asiatic lion population from 674 in 2020 to 891 in 2025 during Wildlife Week.
The Asiatic lion population reached 891 in 2025, up from 674 in 2020. The IUCN reported that 1,012 out of 7,516 assessed species are currently threatened.
Prelims pointers (4)
FactAsiatic lion population: 891 in 2025 (increased from 674 in 2020)
EnvironmentIUCN reported 1,012 threatened species out of 7,516 assessed
SchemeProject Nilgiri Tahr and Phoenix Species Project are active conservation efforts
PlaceGreat Indian Bustard chick was spotted in Kutch
Mains angle
Q. Evaluate the effectiveness of species-specific conservation projects in ensuring the recovery of endangered fauna in India.
Habitat fragmentation: Balancing infrastructure development with the spatial requirements of large apex predators
Genetic diversity: Risks of inbreeding depression in isolated populations like the Asiatic lion
Inter-agency coordination: Synergy between state-led conservation and central biodiversity mandates
Keywords: Biodiversity conservation · Species recovery · In-situ conservation · Wildlife management · IUCN status
Why in news: A review in Nature Reviews Biodiversity highlights that plantations, infrastructure, and climate change have reduced native habitats in the Western Ghats to just one-third of their original extent.
The study identifies specific land use by plantations: coffee occupies 3,000 sq km, tea 1,134 sq km, and rubber 5,000 sq km. Additionally, cashew cultivation has expanded by 53,500 ha in the region.
Prelims pointers (5)
PlaceWestern Ghats: A biodiversity hotspot in India significantly impacted by plantation expansion.
FactCoffee plantation area: 3,000 sq km.
FactTea plantation area: 1,134 sq km.
FactRubber plantation area: 5,000 sq km.
FactCashew expansion: 53,500 ha.
Mains angle
Q. Discuss the ecological consequences of large-scale plantation expansion on biodiversity hotspots like the Western Ghats and suggest measures for sustainable land-use management.
Habitat fragmentation: Loss of native flora and fauna due to monoculture expansion and infrastructure development
Climate-land use nexus: Compounding effects of global warming and agricultural expansion on endemic species
Economic-ecological trade-off: Balancing plantation-led livelihoods with the preservation of Western Ghats biodiversity
Why in news: The Ladakh administration flagged off India's first high-altitude wildlife safari in Rumbak, Shang, and Uley to link conservation with local livelihoods.
The project involves six open-back vehicles and aims to employ local residents as drivers and guides. Ladakh is estimated to hold 477 of the 718 snow leopards in the region.
Prelims pointers (3)
PlaceRumbak, Shang, and Uley are locations in Ladakh where the high-altitude wildlife safari was flagged off.
FactLadakh holds an estimated 477 of the 718 snow leopards in the region.
EnvironmentThe safari project aims to protect fragile ecosystems while potentially expanding to Hemis National Park.
Mains angle
Q. Discuss how community-led wildlife tourism can balance ecological conservation with the socio-economic development of mountain communities in high-altitude regions like Ladakh.
Livelihood integration: Transitioning local residents from extractive activities to conservation-based employment
Ecological integrity: Balancing tourist footfall with the protection of fragile high-altitude habitats
Spatial planning: Regulated safari routes to prevent habitat fragmentation in snow leopard territories
Why in news: Tenkasi district officials began demolishing illegal artificial waterfalls to restore the natural flow of wild streams from the Western Ghats following a Madras High Court order.
District Collector Ranjeet Singh and Sub-Collector Vaishnavi Paul led the demolition of concrete walls in Tenkasi. The action follows an inspection of 29 resorts and bungalows by committees to address illegal stream diversions affecting irrigation tanks like Paimpozhil.
Prelims pointers (3)
PlaceWestern Ghats: The mountain range from which wild streams were being illegally diverted.
Fact29 resorts and bungalows were inspected by committees following a Madras High Court order.
PlacePaimpozhil: An irrigation tank in Tenkasi whose water flow is being restored.
Mains angle
Q. Discuss the ecological and socio-economic implications of illegal water diversion in ecologically sensitive zones like the Western Ghats and suggest measures for sustainable water management.
Ecological degradation: Disruption of natural hydrological cycles and downstream irrigation water availability
Regulatory oversight: Weak enforcement of environmental laws against private resort developments in biodiversity hotspots
Keywords: Hydrological integrity · Ecologically sensitive zones · Sustainable water management · Regulatory enforcement · Biodiversity conservation
Why in news: The Assam Forest Department and WWF-India released a report detailing human-elephant conflict data and habitat tracking in Assam since 2016.
The study tracked four female-led herds and one male elephant across Udalguri, Sonitpur, and Biswanath districts using 38,000 GPS locations. Since 2016, these conflicts have resulted in 1,147 human fatalities and 246 elephant deaths.
Prelims pointers (3)
PlaceUdalguri, Sonitpur, and Biswanath are districts in Assam where elephant habitat studies were conducted.
FactThe study utilized 38,000 GPS locations to identify habitats like Sonai-Rupai, Behali, and Bornadi sanctuaries.
FactHuman-elephant conflicts in Assam caused 1,147 human deaths and 246 elephant deaths since 2016.
Mains angle
Q. Discuss the ecological and socio-economic implications of human-elephant conflicts in Northeast India and suggest measures for mitigation.
Habitat fragmentation: Encroachment on elephant corridors in Udalguri and Sonitpur leading to increased proximity to human settlements
Compensation bottlenecks: Delays in victim relief and lack of community-led early warning systems in Assam
Why in news: Weather agencies are monitoring a 'super' El Niño event characterized by a 2 °C rise in Pacific Ocean surface waters off Peru and Ecuador.
The 'super' El Niño is defined by a 2 °C rise in surface waters off the western coast of Peru and Ecuador, significantly higher than the typical 0.5 °C rise. While India usually faces rainfall deficits during these cycles, coastal Tamil Nadu may face intense localized rainfall due to increased evaporation in the Bay of Bengal.
Prelims pointers (4)
FactSuper El Niño surface water temperature rise: 2 °C above average
FactTypical El Niño surface water temperature rise: 0.5 °C above average
PlaceLocation of surface water rise: Western coast of Peru and Ecuador
PlaceImpact zone in India: Coastal Tamil Nadu (Bay of Bengal evaporation)
Mains angle
Q. Discuss the impact of extreme El Niño events on the Indian monsoon and the regional climatic variability in the Bay of Bengal.
Meteorological variability: Shift from national rainfall deficits to localized extreme precipitation in coastal regions
Climate adaptation: Need for localized early warning systems for intense rainfall in Tamil Nadu
Keywords: El Niño · Climate Variability · Bay of Bengal · Monsoon Dynamics · Extreme Weather
Why in news: The Regional Meteorological Centre (RMC) and Regional Weather Forecasting Centre (RWFC) reported that Tamil Nadu recorded its highest Southwest monsoon mean temperature of 29.45°C during the 2018-25 period.
Tamil Nadu's mean temperature during the Southwest monsoon was 29.45°C, which is 1.21°C above the average. The period recorded a maximum temperature of 34.25°C and a minimum mean of 24.64°C.
Prelims pointers (4)
FactTamil Nadu's Southwest monsoon mean temperature reached 29.45°C during the 2018-25 period.
FactThe recorded temperature was 1.21°C above the average for the period.
PlaceVellore and Kodaikanal were identified as stations showing widespread warming.
S&TGlobal warming and El Niño were cited as primary factors for the temperature rise.
Mains angle
Q. Discuss how the increasing frequency of extreme temperature anomalies during monsoon seasons poses a threat to India's agricultural stability and water security.
Agro-climatic stress: Heat stress on monsoon-dependent crops leading to reduced yields
Why in news: Researchers at Hemvati Nandan Bahuguna Garhwal University found that the Himalayan Monal is shifting to higher altitudes and altering its vocalizations to adapt to human encroachment and noise pollution in Uttarakhand.
A five-year study by researchers from Hemvati Nandan Bahuguna Garhwal University in Uttarakhand revealed behavioral adaptations in the Monal. Climate change projections through 2100 indicate significant habitat shrinkage for the species across Uttarakhand and Himachal Pradesh.
Prelims pointers (2)
PlaceUttarakhand and Himachal Pradesh: States identified as having shrinking habitats for the Monal due to climate change.
FactClimate change projections: Habitat shrinkage for the Monal is projected through the year 2100.
Mains angle
Q. Discuss how anthropogenic pressures and climate change are forcing behavioral adaptations in Himalayan biodiversity and the implications for conservation strategies.
Habitat fragmentation: Shrinking alpine zones due to climate projections through 2100
Acoustic interference: Modification of avian call pitches to overcome anthropogenic noise pollution
Altitudinal migration: Upward shift of species as lower elevations face increasing human encroachment
Why in news: The Delhi government and the Centre unveiled the Winter Action Plan 2026-27 to combat NCR air pollution, featuring fuel station restrictions and vehicle bans.
The plan mandates 'No PUCC, No Fuel' rules at 500 fuel stations starting October 1, 2026. It includes entry bans for non-BS-VI vehicles from November 1 and phased construction prohibitions until January 31.
Prelims pointers (3)
Fact500 fuel stations will enforce 'No PUCC, No Fuel' rules starting October 1, 2026
FactNon-BS-VI vehicles face entry bans from November 1
FactConstruction prohibitions are scheduled to last until January 31
Mains angle
Q. Critically analyze the effectiveness of seasonal action plans in addressing the structural causes of air pollution in the National Capital Region.
Institutional friction: Coordination gaps between Delhi government and Central agencies in enforcement
Regulatory limitations: Seasonal bans vs. long-term transition to BS-VI standards and green construction
Technological monitoring: Scalability of ANPR systems for real-time pollution source tracking
Why in news: Environment Minister Ramalinga Reddy chaired the Standing Committee of the State Board for Wildlife to order actions against illegal resorts in Eco Sensitive Zones (ESZ) and buffer zones.
The committee deferred a resort proposal in Bhadra Tiger Reserve and rejected a quarrying project in Kappatagudda Wildlife Sanctuary. It approved BSNL infrastructure and decided to maintain the Bannerughatta National Park ESZ.
Prelims pointers (5)
PlaceBhadra Tiger Reserve: Location where a resort proposal was deferred.
PlaceKappatagudda Wildlife Sanctuary: Site where a quarrying proposal was rejected.
PlaceBannerughatta National Park: Location where the ESZ status is to be maintained.
BodyState Board for Wildlife: Body whose Standing Committee chaired the meeting.
FactEco Sensitive Zones (ESZ) and buffer zones are the specific areas targeted for illegal resort actions.
Mains angle
Q. Discuss the challenges in balancing infrastructure development with the preservation of Eco Sensitive Zones and wildlife sanctuaries in India.
Regulatory gap: Lack of synchronized Zonal Master Plans leading to unauthorized commercial construction in buffer zones
Conflict of interest: Balancing telecommunication infrastructure requirements (BSNL) with biodiversity conservation mandates
Keywords: Eco Sensitive Zones · Buffer Zones · Biodiversity Conservation · Zonal Master Plans · Wildlife Protection
Why in news: Environment Minister Bhupender Yadav released two male Great Indian Bustards into the wild at Desert National Park, Rajasthan, as part of a captive breeding and release initiative.
The initiative is a collaborative effort between the Union Environment Ministry, Rajasthan Forest Department, and the Wildlife Institute of India. Facilities in Sam and Ramdevra currently house 97 birds, with 11 birds earmarked for release.
Prelims pointers (3)
EnvironmentGreat Indian Bustard: A bird species released into the wild at Desert National Park, Jaisalmer.
FactCaptive reproduction produced 24 chicks in 2025 and 29 chicks in 2026.
BodyWildlife Institute of India: Collaborating body for the captive breeding initiative.
Mains angle
Q. Discuss the significance of ex-situ conservation measures like captive breeding in preserving critically endangered species in India's arid ecosystems.
Genetic diversity risk: Potential for inbreeding depression in small captive populations
Habitat integrity: Requirement for large, undisturbed corridors to ensure post-release survival
Inter-agency coordination: Synergy between central ministries and state forest departments in wildlife management
Keywords: ex-situ conservation · captive breeding · biodiversity conservation · Great Indian Bustard · habitat restoration
Why in news: Chief Minister Mohan Yadav announced that an India-born cheetah (KJP21) gave birth to five cubs in Kuno National Park, marking a milestone for Project Cheetah.
KJP21, a female cheetah born in India, gave birth to five healthy cubs in Kuno National Park, Madhya Pradesh. The father is a cheetah from Botswana, establishing a new genetic lineage in India.
Prelims pointers (4)
FactTotal cheetah population in India reached 60 as of October 2026.
Fact41 out of the 60 cheetahs in India were born on Indian soil.
PlaceKuno National Park is located in the Sheopur district of Madhya Pradesh.
FactKJP21 is the third female cheetah born in India, following Mukhi and KGP12.
Mains angle
Q. Examine the ecological and genetic implications of the cheetah reintroduction program in India, focusing on the challenges of establishing a self-sustaining population.
Genetic diversity: Risks of inbreeding depression vs. benefits of establishing new lineages from Botswana stock
Habitat suitability: Ecological requirements of Kuno National Park for apex predator conservation
Monitoring protocols: Role of scientific management and field staff in tracking reproductive success
Why in news: Conservationists reported that unscientific desilting of Ooty lake in Nilgiris led to a bird population drop from 600 in 2023 to 270 in 2025 despite a ₹7.51 crore expenditure.
The Nilgiris district spent ₹7.51 crore to clean 24 hectares of Ooty lake and modernize its sewage treatment plant. The project, inaugurated in October 2024, resulted in the destruction of sand banks and reed beds, leading to rampant water hyacinth growth.
Prelims pointers (4)
PlaceOoty lake is located in the Nilgiris district.
FactBird population in Ooty lake dropped from over 600 in 2023 to 270 in 2025.
Fact₹7.51 crore was sanctioned for the desilting and sewage treatment plant modernization.
EnvironmentWater hyacinth proliferation is a telltale sign of eutrophication (nutrient-pollution).
Mains angle
Q. Examine how unscientific ecological interventions can exacerbate environmental degradation and impact local biodiversity. Suggest measures for sustainable lake management.
Ecological imbalance: Destruction of natural filters like reed beds and sand banks facilitates rapid eutrophication.
Policy-implementation gap: High fiscal expenditure failing to achieve ecological restoration due to lack of ecosystem-specific knowledge.
Nutrient-pollution: Uncontrolled runoff of fertilizers and untreated sewage causing choking of aquatic life.
Why in news: Researchers from IIHS Bengaluru and the University of Alabama in Huntsville highlighted how high-rise buildings and asphalt cause 'terrestrial stilling' and intensify urban heat.
Amruthraj M.N. (IIHS Bengaluru) noted that high-rise buildings reduce wind speeds near the 10 m surface level. Researchers suggested using computational fluid dynamics and satellite imagery to create ventilation maps for cities like Chennai and Mumbai.
Prelims pointers (3)
S&TComputational fluid dynamics (CFD) is suggested as a tool to create city ventilation maps.
FactTerrestrial stilling is defined as the reduction of wind speeds near the 10 m surface level due to urban infrastructure.
PlaceChennai and Mumbai are identified as cities requiring ventilation mapping.
Mains angle
Q. Discuss how rapid urbanisation and infrastructure development contribute to the 'urban heat island' effect and suggest technological interventions to mitigate terrestrial stilling.
Aerodynamic bottleneck: High-rise density obstructing wind flow and reducing natural cooling at the 10 m surface level
Material heat retention: Asphalt and lack of vegetation creating thermal mass that intensifies localized heat
Data-driven planning: Utilizing computational fluid dynamics and satellite imagery for precision ventilation mapping
Keywords: Urban Heat Island · Terrestrial Stilling · Computational Fluid Dynamics · Urban Ventilation · Thermal Mass
Why in news: The Parambikulam Tiger Reserve inaugurated a photography exhibition to honor the rediscovery of *Haplothismia exannulata*, a plant species declared extinct in the 1990s.
The 'Haplothismia' exhibition features wildlife and landscapes and runs from October 2 to October 8, 2026. The plant *Haplothismia exannulata* was first collected in 1851 and was rediscovered 26 years ago by N. Sasidharan and P. Sujanapal.
Prelims pointers (3)
EnvironmentHaplothismia exannulata: A plant species first collected in 1851 and declared extinct in the 1990s before being rediscovered.
PlaceParambikulam Tiger Reserve: Location of the 'Haplothismia' photography exhibition.
FactThe plant was rediscovered 26 years prior to the 2026 exhibition.
Mains angle
Q. Discuss the importance of botanical biodiversity and the role of tiger reserves in conserving endangered flora and fauna in India.
Ecological restoration: Re-evaluating 'extinct' species to bolster local biodiversity and ecosystem resilience
Conservation methodology: Integrating community-led rediscovery and public awareness through exhibition-based education
Why in news: IIT Hyderabad hosted the 17th International Conference on Mercury as a Global Pollutant (ICMGP 2026) to review the ten-year enforcement of the Minamata Convention.
The six-day conference was co-organized by UNEP, Circular Innovation Lab, and Goethe-Zentrum Hyderabad. It featured sessions by Nina Davuluri and included a delegation from Kumamoto Prefecture.
Prelims pointers (2)
PlaceKumamoto Prefecture: A region in Japan
FactICMGP 2026: The 17th iteration of the International Conference on Mercury as a Global Pollutant
Mains angle
Q. Discuss the effectiveness of the Minamata Convention in mitigating mercury pollution and the challenges in enforcing global environmental standards across diverse industrial landscapes.
Regulatory friction: Balancing industrial mercury use in mining vs. stringent environmental protection mandates
Monitoring gap: Difficulty in tracking transboundary mercury movement and atmospheric deposition across borders
Why in news: Paani Earth Foundation mapped 89 villages in Karnataka following the state legislature's rejection of the K. Kasturirangan Committee report regarding the Western Ghats Ecologically Sensitive Area.
The Paani Earth Foundation mapped 54 villages in Kodagu and 35 in Udupi. The analysis was based on the Centre's July 27 draft notification which bans mining but allows agriculture and property ownership.
Prelims pointers (3)
PlaceKodagu and Udupi are districts in Karnataka where village mapping was conducted.
FactThe Paani Earth Foundation mapped a total of 89 villages across two districts.
FactThe Centre's July 27 draft notification bans mining in the Western Ghats Ecologically Sensitive Area.
Mains angle
Q. Discuss the conflict between ecological conservation and local livelihoods in the Western Ghats, highlighting the challenges of implementing the Kasturirangan Committee recommendations.
Regulatory friction: State legislative rejection vs. Central draft notifications on ecologically sensitive zones
Livelihood trade-offs: Balancing mining bans with the preservation of existing agricultural rights and property ownership
Keywords: Ecologically Sensitive Area · Biodiversity Conservation · Legislative Oversight · Sustainable Development · Land Use Policy
Why in news: The National Tiger Conservation Authority and Wildlife Institute of India released tigress T138 from Bihar's Valmiki Tiger Reserve into West Bengal's Buxa Tiger Reserve to establish a self-sustaining tiger population.
Tigress T138, aged three years, was relocated from Valmiki Tiger Reserve (Bihar) to Buxa Tiger Reserve (West Bengal). The Buxa Tiger Reserve covers an area of 760.87 sq km.
Prelims pointers (4)
PlaceBuxa Tiger Reserve is located in West Bengal
PlaceValmiki Tiger Reserve is located in Bihar
FactBuxa Tiger Reserve covers an area of 760.87 sq km
BodyNational Tiger Conservation Authority (NTCA) oversees tiger conservation in India
Mains angle
Q. Discuss the ecological and logistical challenges involved in establishing self-sustaining tiger populations through the phased reintroduction of individuals into fragmented habitats.
Habitat fragmentation: Connectivity issues between isolated tiger reserves in West Bengal and Bihar
Genetic diversity: Risks of inbreeding in small, isolated populations without corridor management
Human-wildlife conflict: Potential for increased tiger-human encounters in fringe areas of Buxa
Why in news: The Supreme Court ruled to ban cellphones in the Bandhavgarh tiger reserve by early 2026 to ensure responsible tourism and wildlife protection.
Bandhavgarh tiger reserve was established in 1993 in Madhya Pradesh and covers 1536 square kilometres. It currently houses 164 tigers, including an 8-year-old male Bengal tiger named Samrat in the Tala and Khitauli zones.
Prelims pointers (4)
PlaceBandhavgarh tiger reserve is located in Madhya Pradesh
FactBandhavgarh tiger reserve covers an area of 1536 square kilometres
FactThe reserve houses 164 tigers as of the 2026 reporting period
FactBandhavgarh tiger reserve was established in 1993
Mains angle
Q. Discuss the conflict between tourism development and wildlife conservation in tiger reserves. How can regulatory measures like mobile bans balance these competing interests?
Ecological integrity: Mitigation of human-induced stress and noise pollution on flagship species like the Bengal tiger
Regulatory enforcement: Challenges in monitoring electronic device usage within expansive protected areas
Tourism management: Balancing the demand for high-end safari experiences with the mandate of responsible wildlife tourism
Why in news: The Idukki district administration and Forest department are clearing natural passages in the Devikulam forest range to mitigate human-wildlife conflicts following a decade of fatalities.
The initiative targets the Chinnakkanal area in the Devikulam forest range of Idukki. Data indicates 81 deaths and 486 injuries over a decade, with 10 deaths recorded in 2023-24.
Prelims pointers (2)
FactHuman-wildlife conflict in the region resulted in 81 deaths and 486 injuries over a decade.
FactThe translocation of the tusker named Murivali is planned before December.
Mains angle
Q. Discuss the ecological and socio-economic challenges of managing human-wildlife conflict in fragmented forest landscapes like the Western Ghats.
Habitat fragmentation: Encroachment and infrastructure development creating corridors for elephant movement into human settlements
Mitigation trade-offs: Balancing the ecological necessity of elephant corridors with the safety and livelihood of local communities
Why in news: A synchronous survey in Wayanad Wildlife Sanctuary recorded 65 distinct vultures, providing baseline data for monitoring critically endangered scavengers in the Nilgiri Biosphere Reserve.
The survey recorded 54 white-rumped vultures and 11 red-headed vultures across seven vantage points. It was a joint initiative by the Kerala Forest Department, Wayanad Wildlife Division, WWF-India, and the Hume Centre for Ecology and Wildlife Biology.
Prelims pointers (3)
EnvironmentWhite-rumped and red-headed vultures are classified as critically endangered scavengers.
PlaceWayanan Wildlife Sanctuary is located within the Nilgiri Biosphere Reserve.
FactThe survey recorded a total of 65 distinct vultures across 108 observations.
Mains angle
Q. Discuss the ecological significance of vulture populations in maintaining forest health and evaluate the conservation strategies required to protect critically endangered scavengers in India.
Trophic role: Vultures as essential scavengers preventing the spread of zoonotic diseases and pathogens.
Habitat fragmentation: Impact of land-use changes on nesting sites within the Nilgiri Biosphere Reserve.
Conservation monitoring: Importance of baseline data for long-term population viability assessments.
Keywords: Biodiversity conservation · Scavenger ecology · Baseline data · Critically endangered species · Biosphere Reserve
Why in news: The Divisional Forest Office in Thrissur issued a memo to stop the Plantation Corporation of Kerala Ltd. (PCK) from using 4,261 hectares of lease-expired forestland for pineapple cultivation.
The Vazhachal division forest office issued the memo on September 29 following a Kerala High Court order dated August 5. The action targets 4,261 hectares of forestland in the Chalakudy division currently occupied by PCK.
Prelims pointers (3)
PlaceChalakudy division and Vazhachal division are located in the Thrissur district of Kerala.
Act / BillVan (Sanrakshan Evam Samvardhan) Adhiniyam, 1980 is the primary legislation governing forest protection in the state.
FactThe area of lease-expired forestland under dispute is 4,261 hectares.
Mains angle
Q. Discuss the conflict between commercial plantation activities and forest conservation laws in India. How can the Van (Sanrakshan Evam Samvardhan) Adhiniyam be strengthened to prevent illegal land use?
Regulatory oversight: Difficulty in monitoring lease expiration and unauthorized land conversion in dense forest tracts
Conservation vs. Economy: Balancing state-led plantation goals with the statutory protections of the 1980 Act
Keywords: Forest Governance · Land Use Policy · Statutory Violation · Conservation Law · Public-Private Conflict
Why in news: The Madras High Court ordered the Tamil Nadu government to establish a Standard Operating Procedure (SOP) for the management of elephants during religious festivals to ensure safety and animal welfare.
The Madras High Court bench of Chief Justice Sushrut Arvind Dharmadhikari and Justice G. Arul Murugan issued the order on October 1, 2026. A Joint Working Group comprising the Environment, Climate Change and Forests secretary and the Hindu Religious and Charitable Endowments (HR&CE) secretary must submit a draft SOP by October 30, 2026.
Prelims pointers (2)
BodyHR&CE: Hindu Religious and Charitable Endowments department in Tamil Nadu
FactDraft SOP submission deadline: October 30, 2026
Mains angle
Q. Discuss the conflict between cultural practices and wildlife conservation in India. How can Standard Operating Procedures balance religious sentiments with animal welfare?
Legal conflict: Balancing the right to practice religion with constitutional protections for wildlife
Administrative bottleneck: Coordination between forest departments and religious endowment bodies
Ethical dilemma: Balancing traditional cultural heritage with modern animal rights standards
Keywords: Wildlife Conservation · Standard Operating Procedure · Animal Welfare · Cultural Heritage · Inter-departmental Coordination
Why in news: IMD Director-General Mrutyunjay Mohapatra announced that the Northeast monsoon is likely to be normal despite a 20% Southwest monsoon deficit.
The India Meteorological Department (IMD) reported a 20% deficit in the Southwest monsoon. While coastal Tamil Nadu expects normal to above-normal rainfall from the third week of October, north interior districts may see below-average rainfall.
Prelims pointers (4)
FactSouthwest monsoon deficit: 20% as reported by IMD
PlaceCoastal Tamil Nadu: Expected normal to above-normal rainfall from third week of October
PlaceNorth interior districts: Expected below-average rainfall during Northeast monsoon
PostMrutyunjay Mohapatra: Director-General of the India Meteorological Department (IMD)
Mains angle
Q. Analyze the impact of monsoon variability on India's agricultural productivity and suggest measures to mitigate the effects of monsoon deficits.
Hydrological stress: Reduced groundwater recharge in north interior districts due to below-average rainfall
Agricultural risk: Crop yield volatility in coastal regions facing erratic rainfall patterns
Climate adaptation: Need for weather-indexed insurance for farmers facing monsoon deficits
Why in news: Dal Lake in Srinagar faces an ecological crisis due to untreated sewage, plastic waste, and unregulated construction, threatening the local ecosystem and livelihoods.
Dal Lake in Srinagar, Indian-administered Kashmir, is experiencing ecosystem deterioration from untreated sewage, plastic waste, and weed growth. Land encroachment and rising temperatures are actively reducing the lake's surface area.
Prelims pointers (3)
PlaceDal Lake is located in Srinagar, Indian-administered Kashmir
FactPollution sources include untreated sewage, plastic waste, and weed growth
EnvironmentRising temperatures and land encroachment are reducing the lake's surface area
Mains angle
Q. Discuss the ecological and socio-economic impacts of urban encroachment and pollution on high-altitude lake ecosystems like Dal Lake.
Ecological degradation: Weed growth and untreated sewage leading to eutrophication and loss of biodiversity
Socio-economic vulnerability: Impact of deteriorating water quality on local residents and businesses
Climate-urban nexus: Synergistic effect of rising temperatures and land encroachment on shrinking surface area
Why in news: IIT Delhi recorded a poor AQI of 207 as the ICAR-Indian Agricultural Research Institute detected 19 stubble-burning events across six states.
IIT Delhi recorded an AQI of 207 while the general Delhi AQI was 129. ICAR detected 114 residue-burning events between September 15 and 30.
Prelims pointers (4)
FactIIT Delhi recorded a poor AQI of 207 on Wednesday.
FactICAR detected 19 stubble-burning events across six states.
Fact114 residue-burning events occurred between September 15 and 30.
PlaceSafdarjung, Palam, Lodi Road, The Ridge, and Ayanagar recorded maximum temperatures by IMD.
Mains angle
Q. Discuss the impact of agricultural residue burning on urban air quality and suggest measures to transition towards sustainable crop management in India.
Institutional gap: Coordination hurdles between agricultural departments and environmental agencies for real-time monitoring
Technological barrier: High cost of in-situ management machinery for small and marginal farmers
Keywords: Air Quality Index · Stubble Burning · Agricultural Residue · Atmospheric Pollution · Crop Management
Why in news: The southwest monsoon in Keralam ended on September 30, 2026, with a 28% rainfall deficit, marking one of the lowest records since 1901.
Keralam recorded 1,446.5 mm of rainfall against a normal of 2,018.6 mm. Idukki and Wayanad districts experienced a 50% reduction in rainfall compared to normal levels.
Prelims pointers (4)
FactKeralam rainfall deficit: 28% (1,446.5 mm recorded vs 2,018.6 mm normal)
FactIdukki and Wayanad rainfall deficit: 50% less than normal
FactMonsoon record: 7th-lowest since 1901 and 4th-lowest since 2001
S&TIndia Meteorological Department (IMD) scientist V.K. Mini attributes October's below-normal rainfall to El Niño
Mains angle
Q. Analyze the impact of El Niño on the Indian monsoon patterns and discuss the implications of increasing rainfall deficits on the agrarian economy of Kerala.
Hydrological stress: Reduced groundwater recharge and reservoir levels in Idukki and Wayanad
Agricultural vulnerability: Impact of 50% rainfall deficit on crop yields and food security
Climate variability: Increasing frequency of record-low monsoon rainfall since 1901
Why in news: Researchers documented a suspected case of albinism in a Toda buffalo calf, highlighting the urgent need for genetic and phenotypic diversity documentation to conserve the endangered breed.
The Toda buffalo is an endangered breed endemic to The Nilgiris. Its population has declined from over 2,100 individuals to less than a thousand since the mid-19th century.
Prelims pointers (2)
EnvironmentToda buffalo: An endangered breed endemic to The Nilgiris
PlaceSholur village: Located near Udhagamandalam where the albino calf was observed
Mains angle
Q. Discuss the importance of genetic diversity and systematic documentation in the conservation of endangered indigenous livestock breeds in India.
Genetic erosion: Risk of inbreeding depression in small, isolated populations of endemic breeds
Conservation policy: Lack of systematic phenotypic documentation for indigenous livestock varieties
Biodiversity loss: Impact of population decline on the cultural and ecological landscape of the Nilgiris
Why in news: The Delhi government and the Ministry of Environment, Forest, and Climate Change unveiled the Winter Action Plan 2026-27 to combat air pollution in the NCR region.
The plan includes a 'No PUCC, No Fuel' campaign at 500 fuel pumps equipped with ANPR systems starting October 1. Non-compliant vehicles will be banned from entering Delhi from November 1, alongside construction bans and work-from-home policies.
Prelims pointers (2)
Fact500 fuel pumps equipped with ANPR systems for the 'No PUCC, No Fuel' campaign
FactBan on non-compliant vehicles in Delhi starts from November 1
Mains angle
Q. Critically analyze the effectiveness of multi-agency collaborative frameworks like the CAQM in addressing the recurring winter air pollution crisis in the National Capital Region.
Inter-agency coordination: Complexity of synchronizing enforcement between CPCB, DMRC, and DTC
Regulatory enforcement: Challenges in monitoring non-compliant vehicles across the NCR's vast geographic expanse
Economic trade-offs: Balancing construction bans and work-from-home mandates with urban development goals
Why in news: The National Green Tribunal (NGT) Southern Bench questioned the Kerala State Pollution Control Board's (KSPCB) claim of adequate biomedical waste capacity following reports of illegal dumping in neighboring states.
In 2025, Kerala generated approximately 73.08 tonnes of biomedical waste daily against an installed treatment capacity of 71.8 tonnes per day. The NGT noted that 642 applications for waste management authorization were pending and 73 were returned for clarification.
PlaceKSPCB: Kerala State Pollution Control Board is the state-level regulatory body.
Mains angle
Q. Examine the institutional and infrastructural challenges in managing biomedical waste in India and suggest measures to ensure environmental compliance.
Regulatory bottleneck: High volume of pending authorization applications delaying waste management compliance
Infrastructure deficit: Gap between daily waste generation and installed treatment capacity leading to illegal dumping
Inter-state friction: Environmental externalities caused by waste dumping in neighboring states
Why in news: The State of Keralam is seeking to restrict the Ecologically Sensitive Area (ESA) in its Western Ghats region to 98 villages and 8,590.69 sq km by September 24, 2026.
Keralam proposes excluding human habitations and the Cardamom Hill Reserve from ESA classification. The state argues for exemptions for power generation facilities and dairy units while highlighting increased forest cover and sustainable tiger populations.
Prelims pointers (4)
PlaceWestern Ghats: Region in Keralam proposed for ESA restriction.
FactProposed ESA area: 8,590.69 sq km across 98 villages.
FactCardamom Hill Reserve: Specifically sought to be excluded from ESA classification.
FactProposed exemptions: Power generation facilities and dairy units.
Mains angle
Q. Discuss the conflict between ecological conservation and developmental needs in the Western Ghats, highlighting the challenges of defining Ecologically Sensitive Areas.
Developmental friction: Balancing power generation and dairy unit requirements against biodiversity conservation goals
Regulatory ambiguity: Conflict between state-led land use demands and central conservation mandates
Ecological integrity: Risks of habitat fragmentation due to dilution of ESA norms in high-biodiversity zones
Keywords: Ecologically Sensitive Area · Biodiversity Conservation · Sustainable Development · Western Ghats · Land Use Policy
Why in news: The NHAI and Forest Department collaborated to plant over 75,000 mangrove saplings in Pichavaram to offset ecological damage caused by highway expansion.
The project involved planting 75,000 saplings at a cost of ₹1.97 crore in Pichavaram. It successfully reduced the actual mangrove destruction impact from 21.283 hectares to 0.15 hectares while generating 18,135 man-days of work for tribal communities.
Prelims pointers (4)
FactNHAI and Forest Department spent ₹1.97 crore on mangrove plantation in Pichavaram.
FactThe project reduced mangrove destruction impact from 21.283 hectares to 0.15 hectares.
FactThe plantation effort generated 18,135 man-days of work for tribal communities.
PlacePichavaram is the site of the mangrove plantation project near Marakkanam.
Mains angle
Q. Discuss the importance of compensatory afforestation and ecological restoration in balancing infrastructure development with biodiversity conservation in coastal ecosystems.
Ecological integrity: Balancing highway expansion with the preservation of coastal mangrove ecosystems
Livelihood integration: Utilizing conservation projects to generate employment for marginalized tribal communities
Mitigation efficacy: Measuring the success of compensatory plantation versus actual habitat loss
Why in news: The Delhi government approved granting Reserved Forest status to nearly 1,000 acres of the Southern Ridge to enhance legal protection and ecosystem revival.
The Southern Ridge covers approximately 6,200 hectares and is the largest part of Delhi’s ridge system. The notification increases the total protected ridge area to around 13,000 acres.
Prelims pointers (4)
PlaceSouthern Ridge: The largest part of Delhi’s ridge system covering about 6,200 hectares.
FactTotal protected ridge area in Delhi: approximately 13,000 acres post-notification.
BodyA management board was formed in 2026 to oversee restoration and invasive species control.
Mains angle
Q. Discuss the significance of designating urban forest areas as Reserved Forests in mitigating the ecological impact of rapid urbanization in the National Capital Region.
Ecological restoration: Balancing native flora preservation against the spread of invasive species in urban corridors.
Legal protection: Utilizing Reserved Forest status to curb historical encroachment and unauthorized construction since 1994.
Institutional oversight: Role of dedicated management boards in ensuring long-term ecological sustainability.
Keywords: Ecosystem revival · Reserved Forest status · Invasive species management · Urban forestry · Ecological restoration
Why in news: A group of 188 Indian scientists and ecologists published an appeal urging researchers to prepare for a 'Super' El Niño event expected to cause extreme heat and drought.
Pacific Ocean temperatures reached +2.6°C above normal in August 2026, with projections of anomalies up to +4°C. These levels are reported to be higher than any time in the past 1,000 years based on coral core reconstructions.
Prelims pointers (4)
FactPacific Ocean temperature reached +2.6°C above normal in August 2026
FactProjected El Niño anomalies of up to +4°C
PlaceEl Niño originates in the Pacific Ocean
S&TCoral core reconstructions used to determine historical temperature anomalies
Mains angle
Q. Discuss the impact of extreme El Niño events on India's monsoon patterns and suggest measures to mitigate the resulting agricultural and heat-related risks.
Why in news: The Commission for Air Quality Management (CAQM) intensified enforcement operations in the National Capital Region (NCR) to curb seasonal air pollution, resulting in the sealing of non-compliant diesel generators in Nuh.
CAQM conducted 150 inspections across industrial units, construction sites, and power-generation facilities between August 24 and September 7, 2026. In Nuh, Haryana, 35 premises were inspected on September 3, while in Hapur, Uttar Pradesh, seven teams audited 22 industrial units on September 15.
Prelims pointers (4)
BodyCAQM: Commission for Air Quality Management responsible for air quality in NCR and adjoining areas
Fact150 inspections conducted across industrial units, construction sites, and power-generation facilities
PlaceNuh: District in Haryana where non-compliant diesel generator sets were sealed
PlaceHapur: District in Uttar Pradesh where 22 industrial units were audited
Mains angle
Q. Critically analyze the effectiveness of the Commission for Air Quality Management (CAQM) in tackling regional air pollution in the National Capital Region.
Regulatory friction: Balancing industrial output with stringent environmental compliance standards in NCR
Enforcement gap: Challenges in monitoring decentralized diesel generator sets and construction site emissions
Inter-state coordination: Complexity of synchronized pollution control measures across Haryana, Uttar Pradesh, and Delhi
Keywords: Air Quality Management · Environmental Enforcement · National Capital Region · Pollution Mitigation · Regulatory Compliance
Why in news: The Tamil Nadu government informed the National Green Tribunal (NGT) that it will ban Ganesh idol immersion at Chennai's Foreshore Estate and Neelankarai beaches starting next year to curb water pollution.
The Tamil Nadu government aims to stop idol immersions in natural water bodies by 2027. The petitioner argued that plaster of Paris, paints, and chemicals from idols pollute water bodies and suggested using artificial ponds as alternatives.
Prelims pointers (3)
BodyNational Green Tribunal (NGT): A specialized body for adjudication of environmental disputes.
PlaceForeshore Estate and Neelankarai beaches: Locations in Chennai, Tamil Nadu, where immersion was banned.
FactTarget year: The government aims to stop immersions in natural water bodies by 2027.
Mains angle
Q. Discuss the conflict between religious practices and environmental conservation in India. How can the state balance cultural traditions with the need to protect natural water bodies from pollution?
Regulatory friction: Balancing the right to freedom of religion with the state's duty to protect the environment.
Infrastructure gap: Lack of standardized artificial ponds and waste management systems for religious artifacts.
Enforcement hurdles: Managing law-and-order issues during the transition to new immersion sites.
Keywords: Environmental Jurisprudence · Pollution Mitigation · Sustainable Religious Practices · Public Order · Regulatory Compliance
Why in news: Researchers at Northumbria University, supported by NASA, found that Greenland and Antarctica lost 11.3 billion tonnes of ice since the late 1970s, contributing to a 31.4 mm rise in global sea levels.
The study analyzed 42 satellite surveys over five decades, revealing that glacier acceleration accounted for 84% of ice loss. Annual ice loss in Greenland increased from 60 to 264 billion tonnes, while Antarctica's loss rose from 48 to 202 billion tonnes between 1979 and 2023.
Prelims pointers (4)
FactTotal ice loss in Greenland and Antarctica since the late 1970s: 11.3 billion tonnes
FactRise in global sea levels attributed to this ice loss: 31.4 millimeters
FactGlacier acceleration accounted for 84% of ice loss, rather than surface melting
FactStudy integrated data from 42 satellite surveys over five decades
Mains angle
Q. Discuss the implications of accelerated glacial melting in polar regions on global sea-level rise and the resulting challenges for coastal geography.
Cryospheric feedback: Accelerated glacier movement vs. surface melting dynamics
Geopolitical risk: Coastal erosion and displacement of populations in low-lying deltaic regions
Data-driven monitoring: Role of multi-decadal satellite surveys in climate modeling