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. 481 notes so far, updated daily.
Why in news: Patna High Court issued statewide directives to curb noise pollution in Bihar by banning loudspeakers after 9:55 PM and mandating sound monitoring systems.
Justice Rajiv Roy of the Patna High Court ordered strict compliance with Noise Pollution Rules and the Motor Vehicles Act. The order mandates a loudspeaker ban after 9:55 PM, registration of DJ operators, and the installation of sound monitoring systems by the Bihar State Pollution Control Board.
BodyBihar State Pollution Control Board: State body responsible for monitoring and regulating environmental pollution.
FactLoudspeaker ban: Effective after 9:55 PM across Bihar.
PlacePatna High Court: The judicial body issuing the statewide directive.
Mains angle
Q. Discuss the challenges in enforcing noise pollution regulations in India and suggest measures to balance individual rights with the right to a healthy environment.
legal framework: Noise Pollution Rules
enforcement hurdles: lack of monitoring infrastructure
way forward: technological integration and public awareness
Keywords: Right to a healthy environment · Regulatory compliance · Public nuisance · Environmental governance · Judicial activism
Why in news: The Supreme Court mandated a structured eviction framework using paramilitary forces to remove encroachers from the Agasthyamalai landscape due to state inaction.
The Agasthyamalai landscape includes the Kalakad Mundanthurai Tiger Reserve and Kanyakumari Wildlife Sanctuary. The Supreme Court intervened after the Tamil Nadu government failed to implement previous eviction orders from both the Madras High Court and the Supreme Court.
Prelims pointers (3)
PlaceAgasthyamalai landscape is located in the state of Tamil Nadu.
EnvironmentKalakad Mundanthurai Tiger Reserve and Kanyakumari Wildlife Sanctuary are key protected areas in the Agasthyamalai region.
FactThe Supreme Court suggested the use of paramilitary forces for eviction of encroachers.
Mains angle
Q. Discuss the challenges in protecting ecologically sensitive zones from encroachment and the role of the judiciary in ensuring environmental conservation.
Why in news: The Supreme Court issued a directive on solid waste management (SWM) blaming public passivity and ordering District Collectors to integrate SWM education into school curricula.
On August 18, 2026, a Supreme Court Bench headed by Justice S.V.N. Bhatti addressed inadequate solid waste management in India. The court directed District Collectors to engage households and schools to mitigate health risks to sanitary workers.
Prelims pointers (3)
BodySupreme Court of India: The highest judicial body in India.
FactDistrict Collectors: Administrative heads of districts responsible for implementing waste management directives.
PlaceIndia: The geographical scope of the court's directive on solid waste management.
Mains angle
Q. Discuss the role of community participation and educational reforms in addressing the challenges of urban solid waste management in India.
public health implications
role of local administration
behavioral change through education
waste management infrastructure
Keywords: Solid Waste Management · Public Health · Behavioral Change · Community Engagement · Sanitation
Why in news: A CSTEP study revealed that Kerala has the highest local contribution to air pollution in South India, with 25 cities failing PM10 standards under the National Clean Air Programme (NCAP).
The study 'Governance Framework for Airshed-Level Air Quality Management in South India' identifies Kerala as having a 65% local pollution contribution. It highlights that Tamil Nadu and Andhra Pradesh are net contributors, while Kerala and Telangana are primary receivers of pollutants.
Prelims pointers (4)
FactKerala's local contribution to air pollution in South India is 65%.
Fact25 cities in South India are classified as non-attainment under NCAP.
BodyCSTEP (Council on Sustainable Ecological Systems and Technologies) conducted the study.
SchemeNCAP (National Clean Air Programme) targets cities with PM10 and PM2.5 concentrations exceeding specified limits.
Mains angle
Q. Discuss the challenges in managing air quality at the 'airshed' level in India. Suggest measures to improve inter-state cooperation for pollution control.
Why in news: Researchers discovered that marine worms like *Olavius algarvensis* possess enzymes to break down polyhydroxyalkanoates (PHAs), offering insights into natural biodegradation of bioplastics.
The Max Planck Institute for Marine Microbiology identified enzymes in marine worms capable of degrading PHAs, which are natural polymers produced by microorganisms. The study was published in the journal Nature Ecology & Evolution.
Prelims pointers (3)
S&TOlavius algarvensis: A marine worm species capable of breaking down polyhydroxyalkanoates (PHAs).
S&TPHAs: Natural polymers produced by microorganisms that serve as a basis for bioplastics.
BodyMax Planck Institute for Marine Microbiology: Research body involved in the study.
Mains angle
Q. Discuss the potential of biological biodegradation in addressing the global plastic pollution crisis and the role of bioplastics in sustainable waste management.
Why in news: A study highlights the massive scale of the Great Pacific Garbage Patch and the severe threat posed by microplastics and fishing nets to marine biodiversity.
The Great Pacific Garbage Patch covers 1.6 million sq km between Hawaii and California. It contains 1.8 trillion plastic pieces (79,000 tons), where fishing nets account for 46% of the total mass.
Prelims pointers (4)
FactGreat Pacific Garbage Patch covers 1.6 million square kilometres.
FactMicroplastics constitute 94% of the pieces but only 8% of the total mass.
FactFishing nets account for at least 46% of the total mass of the patch.
BodyNOAA (National Oceanic and Atmospheric Administration) monitors marine debris and ocean health.
Mains angle
Q. Discuss the ecological impact of marine plastic pollution and evaluate the challenges in implementing effective international cleanup strategies.
Why in news: Experts and NOAA forecast a 90% probability of a record-breaking El Niño peaking in late 2026, posing significant risks to global monsoon patterns and climate stability.
The phenomenon is expected to peak between November 2026 and February 2027. NOAA indicates a 69% probability of the event surpassing historical records during the October-December 2026 period.
Prelims pointers (3)
S&TEl Niño: A climate pattern describing the unusual warming of surface waters in the eastern tropical Pacific Ocean.
FactNOAA forecasts a 69% probability of record-breaking El Niño strength in late 2026.
S&TEl Niño is associated with disruptions in global precipitation, often causing droughts in some regions and floods in others.
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 climatic risks.
Why in news: The Supreme Court directed the Ministry of Environment, Forest and Climate Change to survey elephant corridor obstructions, prioritizing wildlife movement over crop damage.
The Supreme Court ruled that states cannot obstruct elephant corridors even in cases of crop damage. The Ministry of Environment, Forest and Climate Change (MoEFCC) must conduct a fresh survey and submit a status report on obstructions across India.
Prelims pointers (3)
BodyMoEFCC: Ministry of Environment, Forest and Climate Change is the nodal body for wildlife protection.
EnvironmentElephant corridors: Designated pathways used by elephants to move between fragmented habitats.
FactThe court explicitly prohibited the use of firearms or coercive actions against elephants.
Mains angle
Q. Discuss the challenges in balancing human-wildlife conflict with the conservation of migratory corridors in India's fragmented ecosystems.
Why in news: Andhra Pradesh outlined eight adaptation measures in its State Action Plan on Climate Change to establish 120 GW of renewable power projects by 2030.
The AP State Climate Change Cell (APSCCC) plans to increase renewable energy generation to 40% from solar and wind. The plan includes two hydrogen hubs (60 MW capacity) and 100,000 electric vehicle charging stations.
Prelims pointers (5)
FactTarget: 120 GW of renewable power projects by 2030.
FactTarget: 40% renewable energy generation from solar and wind.
FactHydrogen Hubs: Two hubs with a combined capacity of 60 MW.
FactEV Infrastructure: Plan to install one lakh electric vehicle charging stations.
PlaceVulnerability: Northern and central regions identified as highly vulnerable to climate change.
Mains angle
Q. Discuss the significance of state-level action plans in achieving India's national climate goals, with reference to Andhra Pradesh's renewable energy targets.
decentralized climate governance
technological transition (Hydrogen/EVs)
mitigation vs adaptation strategies
regional vulnerability mapping
Keywords: Climate Adaptation · Renewable Energy Transition · Decarbonization · State Action Plan · Energy Security
Why in news: The Forest Department initiated mass evictions in the Agasthyamalai Biosphere Reserve (ABR) following Supreme Court directives and CEC recommendations to remove illegal encroachments.
The eviction targets thousands of households in the Theni district of the Agasthyamalai Biosphere Reserve. The Supreme Court imposed penalties on 118 government servants found to be encroachers and prohibited new non-forest activities in the reserve.
Prelims pointers (3)
PlaceAgasthyamalai Biosphere Reserve (ABR) is located in the Western Ghats region.
BodyCEC (Central Empowered Committee) provides recommendations on environmental and land issues.
Fact118 government servants were identified and penalized for encroachment in the ABR.
Mains angle
Q. Discuss the challenges in balancing the rights of forest-dwelling communities with the conservation of biodiversity in protected areas like the Agasthyamalai Biosphere Reserve.
Why in news: A massive backlog of 2,000 applications for exotic animal registration in Tamil Nadu highlights enforcement challenges and infrastructure gaps in wildlife regulation.
The Chief Wildlife Warden (CWLW) in Tamil Nadu faces a backlog of approximately 2,000 applications for exotic animal registration. The delay is attributed to a portal transition and high demand, exacerbated by a lack of dedicated housing facilities for seized exotic animals.
Prelims pointers (3)
BodyCWLW: Chief Wildlife Warden is the primary authority for wildlife management and enforcement at the state level.
FactTamil Nadu currently has a backlog of approximately 2,000 applications for exotic animal registration.
EnvironmentExotic animals are non-native species whose trade and possession are regulated under the Wildlife Protection Act.
Mains angle
Q. Discuss the challenges in regulating the trade and possession of exotic animals in India and suggest measures to strengthen wildlife enforcement mechanisms.
Why in news: The National Green Tribunal (NGT) intervened to resolve conflicting reports on mercury contamination in Neyveli, directing the TNPCB to formalize a study by IIT-Madras.
The NGT Southern Bench issued the order on August 12 regarding mercury levels in Neyveli. The Tamil Nadu Pollution Control Board (TNPCB) was directed to provide Terms of Reference for a study by IIT-Madras due to discrepancies in technical committee reports.
Prelims pointers (4)
BodyNational Green Tribunal (NGT): A statutory body established to handle environmental disputes.
BodyTNPCB: The state-level body responsible for implementing environmental laws in Tamil Nadu.
PlaceNeyveli: A prominent mining and industrial hub in Tamil Nadu.
FactMercury: A heavy metal and potent neurotoxin that poses significant environmental and health risks.
Mains angle
Q. Discuss the challenges in monitoring heavy metal pollution in industrial hubs and the role of statutory bodies in ensuring environmental accountability.
technical complexities in source identification
regulatory oversight by TNPCB
public health implications of mercury
role of NGT in environmental adjudication
Keywords: Heavy metal contamination · Statutory oversight · Environmental adjudication · Pollution monitoring · Precautionary principle
Why in news: Harrisons Malayalam Limited (HML) utilized drone seeding technology to restore 15 acres of land near Peerumade hills with 24 native species to promote biodiversity.
HML used drones and seed balls to plant 24 native species sourced from the Kerala Forest Research Institute (KFRI) seed bank. The project targets a minimum plant density of 5,000 plants per hectare by 2031 in the Idukki district.
Prelims pointers (4)
PlacePeerumade hills are located in the Idukki district of Kerala.
S&TDrone seeding technology is used for large-scale reforestation and seed dispersal.
FactThe project aims for a plant density of 5,000 plants per hectare.
BodyKerala Forest Research Institute (KFRI) manages seed banks for native species.
Mains angle
Q. Discuss how the integration of drone technology and seed ball dispersal can enhance large-scale reforestation and biodiversity conservation in India's Western Ghats.
Why in news: The CAG report highlighted a significant shortfall in the Green India Mission's (GIM) forest cover targets, revealing systemic issues in implementation and monitoring.
The CAG report revealed that the Green India Mission achieved only 0.03 million hectares of forest cover increase against a target of 1.4 million hectares (2015-16 to 2024-25). The mission faced a 97.57% shortfall due to poor financial management and lack of convergence with existing schemes across 16 states and UTs.
Prelims pointers (3)
SchemeGreen India Mission (GIM): A government initiative to enhance forest/tree cover and improve ecosystem services.
BodyCAG: The Comptroller and Auditor General of India is the supreme audit institution of the country.
FactGIM shortfall: 97.57% discrepancy between target (1.4 million hectares) and achievement (0.03 million hectares).
Mains angle
Q. Critically analyze the challenges in implementing large-scale afforestation schemes in India and suggest measures to ensure better convergence and monitoring.
Why in news: A World Weather Attribution (WWA) study highlights that land-use changes, rather than climate change, were the primary drivers of the devastating floods in eastern Assam.
The floods occurred between late June and early August, affecting Sivasagar, Charaideo, and Jorhat districts. The study found that rainfall remained within historical norms, but human-induced land-use changes exacerbated the impact, resulting in at least 103 fatalities.
Prelims pointers (3)
BodyWorld Weather Attribution (WWA) is a global initiative that investigates the links between extreme weather events and climate change.
PlaceSivasagar, Charaideo, and Jorhat are districts in the state of Assam.
FactThe floods in eastern Assam resulted in at least 103 deaths.
Mains angle
Q. Discuss how anthropogenic land-use changes exacerbate the impact of natural disasters in the Northeast region of India. Suggest measures for sustainable flood management.
impact of deforestation and urbanization
vulnerability of hill catchments
need for community-based disaster management
policy shift towards climate-resilient infrastructure
Why in news: Andhra Pradesh Deputy CM and Union Minister called for a shift from human-elephant conflict to coexistence during a conference on World Elephant Day.
Andhra Pradesh is home to approximately 132-142 wild elephants. The state signed an MoU with Karnataka’s Forest Department to receive four kumki elephants and establish a training center.
Prelims pointers (3)
EnvironmentKumki elephants: Trained elephants used for capturing and relocating wild elephants.
PlaceVisakhapatnam: Location of the conference on human-elephant coexistence.
Mains angle
Q. Discuss the challenges of human-elephant conflict in India and evaluate the role of 'kumki' elephants and habitat restoration in promoting coexistence.
Why in news: Assam CM Himanta Biswa Sarma proposed reducing the Eco-Sensitive Zone (ESZ) of Kaziranga National Park from 10 km to 1 km to facilitate infrastructure development.
Kaziranga National Park and Tiger Reserve is a UNESCO World Heritage Site famous for its one-horned rhinoceroses. The proposal seeks to reduce the ESZ buffer to 1 km to accommodate projects like a stadium while following Supreme Court guidelines on ESZ variations.
Prelims pointers (4)
PlaceKaziranga National Park is located in the state of Assam.
EnvironmentKaziranga is a primary habitat for the Great One-horned Rhinoceros.
FactThe proposed reduction of the Eco-Sensitive Zone (ESZ) is from 10 km to 1 km.
BodyUNESCO World Heritage Site status is granted by the United Nations Educational, Scientific and Cultural Organization.
Mains angle
Q. Discuss the challenges of balancing infrastructure development with the conservation of ecologically sensitive zones in India's protected areas.
biodiversity loss risks
developmental imperatives
Supreme Court guidelines on ESZs
sustainable development model
Keywords: Eco-Sensitive Zone · Sustainable Development · Biodiversity Conservation · Infrastructure Development · UNESCO World Heritage
Why in news: Researchers documented ground subsidence in Point Lay (Alaska) due to thawing permafrost, which releases methane and CO2, creating a feedback loop for global warming.
Point Lay (Kali) is experiencing subsidence where ice makes up ~40% of the ground. Ice wedges extend over 12 metres below the surface. The thawing releases carbon dioxide and methane from ancient organic material.
Prelims pointers (4)
EnvironmentPermafrost: Ground that remains completely frozen for at least two consecutive years.
FactIce content in Point Lay ground reaches approximately 40%.
S&TMethane and CO2 are primary greenhouse gases released from thawing permafrost.
PlacePoint Lay (Kali) is located in Alaska, USA.
Mains angle
Q. Discuss how the thawing of Arctic permafrost acts as a positive feedback loop in global warming and its socio-economic impact on indigenous communities.
Why in news: A global study published in Nature Food highlights that 1/3 of farmland causes 2/3 of biodiversity and carbon loss, identifying specific hotspots and trade-related impacts.
The study by Leiden University, Oxford Martin School, and China Agricultural University identifies South America, Southeast Asia, India, and China as major hotspots. It notes that beef and dairy production are significant contributors to environmental degradation.
Prelims pointers (4)
EnvironmentOne-third of global agricultural land accounts for two-thirds of farming-related biodiversity and carbon loss.
FactTargeted restoration of high-impact areas could capture 170 billion tonnes of carbon.
FactRestoration of high-impact areas could prevent approximately 60% of agriculture-driven extinction risks.
PlaceBrazil is identified as the largest net exporter of environmental impacts from agriculture, while China is the largest importer.
Mains angle
Q. Discuss the impact of intensive agricultural practices on global biodiversity and carbon sequestration. How can international trade policies be aligned with environmental sustainability?
Why in news: The Tamil Nadu Forest Department is investigating the legal ownership and CITES compliance of a Lar Gibbon featured in a viral video involving actor Vikram.
The Lar Gibbon was moved from a private residence in Injambakkam to Erode. Its documented trail links it to Manipur and Malaysia, with transfers allegedly governed by CITES regulations.
Prelims pointers (4)
EnvironmentLar Gibbon: A primate species whose trade is regulated under international and domestic wildlife laws.
Intl. orgCITES: Convention on International Trade in Endangered Species of Wild Fauna and Flora.
FactThe animal's movement was documented across Manipur and Malaysia before reaching Tamil Nadu.
S&TZoonotic diseases: Diseases that can spread from animals to humans, a risk highlighted by wildlife activists.
Mains angle
Q. Discuss the challenges in regulating the private ownership of endangered species and the role of CITES in curbing illegal wildlife trade in India.
Why in news: The Union government, via the National Mission for Clean Ganga (NMCG), revised the flood plain definition to allow regulated construction in moderate/rare flood zones along the Ganga.
The order was issued by the National Mission for Clean Ganga (NMCG) to address inconsistencies in construction rules. It maintains a strict ban within the 'active flood plain' while permitting regulated construction in areas subject to moderate or rare flooding with official clearances.
Prelims pointers (3)
BodyNMCG: National Mission for Clean Ganga is the nodal agency for river rejuvenation.
FactThe revision allows construction in areas subject to moderate or rare flooding.
FactConstruction remains strictly prohibited within the 'active flood plain'.
Mains angle
Q. Discuss the challenges of balancing urban development with ecological preservation in the floodplains of major Indian rivers like the Ganga.
Why in news: Kerala experienced fatal landslides in Wayanad, Idukki, and Kottayam due to extreme monsoon rainfall, highlighting the link between climate change and disaster vulnerability.
Kerala receives approximately 3,000 mm of annual rainfall, often in high-intensity spells. The landslides occurred in the foothills of the Western Ghats, specifically affecting Wayanad, Idukki, and Kottayam districts.
Prelims pointers (3)
PlaceWayanad, Idukki, and Kottayam are districts in Kerala prone to landslides.
FactKerala receives an average of 3,000 mm of annual rainfall.
EnvironmentThe Western Ghats are a biodiversity hotspot and a sensitive ecological zone prone to landslides.
Mains angle
Q. Discuss how climate change is intensifying the frequency and severity of landslides in the Western Ghats and suggest measures for disaster-resilient infrastructure.
Why in news: The Andhra Pradesh government approved 25 new tiger protection camps following a High-Level Committee recommendation to curb tiger mortality.
The High-Level Committee, chaired by P. Mallikharjuna Rao (IFS retd.) and Rahul Pandey (IFS), recommended increasing the number of tiger protection base camps from 100 to 125. Each camp is to be staffed by at least four field personnel.
Prelims pointers (3)
FactAndhra Pradesh is increasing tiger protection base camps from 100 to 125.
PostP. Mallikharjuna Rao and Rahul Pandey (IFS) chaired the High-Level Committee for tiger protection.
EnvironmentTiger protection camps are established to mitigate human-wildlife conflict and poaching.
Mains angle
Q. Discuss the challenges in tiger conservation in India and evaluate the effectiveness of increasing field-staff presence in protected areas.
Why in news: Record rainfall in Delhi in August 2026 eased India's cumulative monsoon deficit, while East India faces persistent dry spells and El Niño-related drought risks.
As of August 7, 2026, India's cumulative rainfall deficit was reduced to 11 percent. The IMD reported record-breaking rainfall in Delhi within the first eight days of August, though rice and oilseed crops remain behind targets.
Prelims pointers (4)
FactIndia's cumulative rainfall deficit was 11 percent as of August 7, 2026.
BodyIMD (India Meteorological Department) is the primary agency for monitoring monsoon and rainfall.
Intl. orgWorld Meteorological Organisation (WMO) monitors global climate patterns like El Niño.
S&TEl Niño is a climate pattern characterized by the warming of surface waters in the eastern tropical Pacific Ocean.
Mains angle
Q. Discuss the impact of erratic monsoon patterns and El Niño on India's food security and the challenges in climate-resilient agriculture.
Why in news: Copernicus Climate Change Service reported record-high July ocean temperatures (20.96°C) driven by El Niño, highlighting escalating global warming trends.
The Copernicus Climate Change Service recorded a peak ocean temperature of 20.96°C in July. The warming is attributed to developing El Niño conditions in the Pacific and has led to extreme heatwaves, wildfires, and droughts in Western Europe.
Prelims pointers (4)
S&TEl Niño: A climate pattern describing the unusual warming of surface waters in the eastern tropical Pacific Ocean.
FactRecord July ocean temperature: 20.96°C.
BodyCopernicus Climate Change Service: The European Union's Earth observation program.
EnvironmentOcean warming impacts: Sea level rise and intensification of tropical storms.
Mains angle
Q. Discuss the impact of rising ocean temperatures on global climate patterns and suggest measures to mitigate the effects of extreme weather events.
impact on coastal infrastructure
disruption of marine biodiversity
economic cost of extreme heatwaves
global mitigation strategies
Keywords: Global Warming · El Niño · Climate Resilience · Marine Ecosystems · Extreme Weather
Why in news: The expansion of Asiatic lion habitats across diverse terrains in Saurashtra highlights the success of conservation and human-wildlife coexistence.
The Asiatic lion (Panthera leo leo) is found exclusively in the Gir National Park and Sanctuary region of Gujarat. They have expanded their range into Girnar hills, Mitiyala forests, and coastal tracts of Saurashtra and Bhavnagar.
Prelims pointers (3)
EnvironmentAsiatic lions are found exclusively in the Gir National Park and Sanctuary in Gujarat.
PlaceSaurashtra and Bhavnagar are regions in Gujarat where lions have established territories.
FactLions inhabit diverse terrains including grasslands, riverbeds, and mountainous terrain like Girnar hills.
Mains angle
Q. Discuss the challenges and strategies involved in managing human-wildlife conflict in expanding habitats of endangered species like the Asiatic lion.
Why in news: Activists and citizens in Bengaluru formed a human chain to protest a ₹17,770 crore tunnel road project that threatens the ecological integrity of Lalbagh Botanical Garden.
The proposed project aims to connect North and South Bengaluru via Esteem Mall in Hebbala. Protesters argue the construction will damage the 3,300-year-old Lalbagh Rock and thousands of trees. A High Court hearing is scheduled for August 20th to address petitions against the project.
Prelims pointers (3)
PlaceLalbagh: A prominent botanical garden and heritage site located in Bengaluru, Karnataka.
FactThe estimated cost of the proposed tunnel road project is ₹17,770 crore.
FactLalbagh Rock is cited as a significant geological feature with an age of approximately 3,300 years.
Mains angle
Q. Discuss the conflict between large-scale infrastructure development and the preservation of urban green spaces and heritage sites in rapidly growing Indian cities.
Ecological impact on urban biodiversity
Preservation of geological and cultural heritage
Sustainable urban planning and public participation
Keywords: Urban Ecology · Sustainable Development · Public Interest Litigation · Environmental Impact Assessment
Why in news: The Greater Bengaluru Authority (GBA) banned Plaster of Paris (PoP) and non-biodegradable Ganesh idols to curb water pollution during the festival.
The GBA prohibited the production, sale, and immersion of idols made from non-biodegradable materials and those painted with heavy-metal-containing chemical paints. Violations are punishable under the Environment (Protection) Act.
Prelims pointers (3)
Act / BillEnvironment (Protection) Act: Primary legislation for environmental conservation in India.
FactPlaster of Paris (PoP): A synthetic gypsum material that is non-biodegradable and contributes to water pollution.
PlaceGreater Bengaluru Authority (GBA): The civic body responsible for enforcing environmental regulations in Bengaluru.
Mains angle
Q. Discuss the environmental impact of religious festivals on urban water bodies and evaluate the effectiveness of legislative measures in curbing such pollution.
impact on aquatic ecosystems
public health risks from heavy metals
balancing cultural practices with environmental sustainability
Keywords: biodegradability · heavy metal toxicity · urban pollution · regulatory enforcement · sustainable celebration
Why in news: Severe flooding in Assam caused by a cloudburst and river breach led to 98 deaths, highlighting the need for a national-level disaster management strategy.
A cloudburst on July 19 caused the Dikhow River to breach its extreme flood level in Sivasagar, Charaideo, Jorhat, and Golaghat districts. The floods resulted in 98 fatalities and caused annual asset damage exceeding ₹1,000 crore.
Prelims pointers (3)
PlaceDikhow River: A major river in Assam prone to flooding.
FactAssam floods caused over ₹1,000 crore in annual asset damage.
EnvironmentCloudbursts: Intense rainfall caused by sudden condensation of moisture in mountainous/hilly regions.
Mains angle
Q. Discuss the impact of environmental degradation and upstream activities on the increasing frequency of floods in Northeast India. Suggest measures for a coordinated national response.
Why in news: The Andhra Pradesh government is translocating gaurs and tigers to the Nagarjunasagar-Srisailam Tiger Reserve (NSTR) to restore the prey base and genetic diversity of the ecosystem.
The initiative involves translocating 30 gaurs from central India and two female tigers from Maharashtra and Madhya Pradesh into NSTR. The project is being executed in collaboration with the Wildlife Institute of India (WII) to combat habitat loss and hunting-induced population decline.
Prelims pointers (4)
PlaceNagarjunasagar-Srisailam Tiger Reserve (NSTR) is located in Andhra Pradesh.
BodyWildlife Institute of India (WII) is a premier autonomous institution for wildlife research and conservation.
EnvironmentGaur (Indian Bison) is a large wild bovine species and a key prey species for tigers.
FactThe translocation includes 30 gaurs and 2 female tigers from Maharashtra and Madhya Pradesh.
Mains angle
Q. Discuss the importance of prey-base management and genetic diversity in the conservation of apex predators like tigers in India's protected areas.
Why in news: Tamil Nadu government announced the TN-SHORE project to restore 2,500 hectares of mangroves to enhance coastal biodiversity and livelihoods.
The TN-SHORE project aims to restore and expand mangrove forests across eight districts in Tamil Nadu, including Kanniyakumari. The project focuses on natural expansion through channel creation and the removal of invasive species.
Prelims pointers (3)
PlaceKanniyakumari district in Tamil Nadu contains significant mangrove concentrations in Manakudy and Rajakkamangalam.
FactTN-SHORE project targets the restoration of 2,500 hectares of mangrove forests.
EnvironmentMangroves are coastal ecosystems that provide essential services like coastal protection and biodiversity support.
Mains angle
Q. Discuss the ecological and socio-economic importance of mangrove restoration in coastal India and the challenges involved in managing invasive species.
Why in news: The Gauhati High Court intervened to halt encroachments in Manas National Park following a Public Interest Litigation (PIL) by an environmental activist.
The Gauhati High Court issued orders to the Assam government and Bodoland Territorial Council (BTC) on July 31, 2026. The court served notices to the Union Ministry of Environment, Forest, and Climate Change, and the National Tiger Conservation Authority (NTCA).
Prelims pointers (3)
PlaceManas National Park and Tiger Reserve is located in Assam.
BodyNTCA (National Tiger Conservation Authority) is the statutory body for tiger conservation in India.
FactThe court set a returnable date of October 7, 2026, for the submission of reports.
Mains angle
Q. Discuss the challenges in preventing illegal encroachments in protected areas and the role of judicial activism in environmental conservation.
Why in news: Meghalaya CM launched 'Mission Clouded Leopard' to protect the state animal, Neofelis nebulosa, from habitat loss and illegal hunting.
The mission focuses on habitat protection and research in community-managed forests like Balpakram. An assessment identified 21 leopards in Balpakram National Park. The species is listed as 'Vulnerable' on the IUCN Red List.
Prelims pointers (4)
EnvironmentNeofelis nebulosa (Clouded Leopard) is the state animal of Meghalaya.
EnvironmentClouded Leopard is listed as 'Vulnerable' on the IUCN Red List.
PlaceBalpakram National Park is a key habitat for the Clouded Leopard in Meghalaya.
Fact21 leopards were identified in Balpakram National Park during the ongoing assessment.
Mains angle
Q. Discuss the importance of community-managed forests in biodiversity conservation and the challenges faced by endangered species like the Clouded Leopard.
habitat fragmentation
community-led conservation
illegal poaching threats
IUCN conservation status
Keywords: biodiversity conservation · habitat protection · IUCN Red List · community-managed forests · species preservation
Why in news: Severe monsoon-induced floods and landslides across India and Sri Lanka have caused over 100 deaths, highlighting the intensifying impact of climate change and El Niño.
Since July, India's monsoon has caused over 100 deaths, with Assam reporting 87 fatalities and Kerala recording 15. Sri Lanka reported 8 deaths and 12,000 displaced persons due to flooding despite concurrent drought conditions.
Prelims pointers (3)
FactAssam recorded 87 fatalities due to monsoon-related disasters since July.
FactSri Lanka reported 12,000 displaced persons due to monsoon flooding.
S&TEl Niño and climate change are identified as primary drivers for extreme monsoon patterns.
Mains angle
Q. Discuss the increasing frequency of extreme weather events in South Asia and suggest measures to enhance disaster resilience against climate-induced floods.
Why in news: The IMD issued yellow alerts and heavy rain forecasts for Delhi-NCR and Odisha, while Kerala and Himachal Pradesh faced severe monsoon-related disruptions.
The India Meteorological Department (IMD) issued a yellow alert for Delhi-NCR for moderate rain until August 10. In Himachal Pradesh, monsoon rains resulted in 153 blocked roads and 191 power transformers being down.
Prelims pointers (3)
BodyIMD: India's primary agency for meteorological observations and forecasting.
FactYellow Alert: Issued by IMD to indicate heavy rainfall and potential for localized flooding.
PlacePathanamthitta, Alappuzha, and Kottayam: Districts in Kerala affected by monsoon-induced evacuations.
Mains angle
Q. Discuss the challenges faced by urban and hilly regions in India during extreme monsoon events and suggest measures for enhancing disaster resilience.
Why in news: A study in 'Biological Invasions' revealed that wooden packaging accounts for 98% of woodwasp interceptions in the US, highlighting risks in global trade.
The study analyzed 3,054 interception records from the US, Canada, and New Zealand between 1952 and 2020. It identified pallets and crates as the primary pathway for woodwasps, emphasizing the role of international trade in invasive species spread.
Prelims pointers (3)
EnvironmentWoodwasps are invasive insects that spread via wooden packaging materials like pallets and crates.
Intl. orgISPM 15 is the international standard governing the treatment of wood packaging materials to prevent the spread of pests.
FactNearly 98% of woodwasp interceptions in the US were linked to wooden packaging materials.
Mains angle
Q. Discuss the challenges posed by invasive species to global biodiversity and trade, and suggest measures to strengthen international regulatory frameworks like ISPM 15.
impact on local ecosystems
economic costs of invasive species
strengthening international compliance
biosecurity protocols
Keywords: invasive species · biosecurity · global trade · biodiversity loss · ISPM 15
Why in news: Experts warned that Punjab's groundwater is severely overexploited, threatening long-term agricultural sustainability and rural livelihoods.
72.55% of Punjab's groundwater blocks are classified as over-exploited, with extraction exceeding recharge by 156%. Water tables have dropped by 14 meters since 1998, with a risk of aquifer exhaustion by 2039.
Prelims pointers (3)
Fact72.55% of Punjab's groundwater blocks are currently classified as over-exploited.
FactGroundwater extraction in Punjab exceeds recharge by 156%.
FactWater tables in the region have fallen by 14 meters since 1998.
Mains angle
Q. Discuss the impact of groundwater over-exploitation on Punjab's agrarian economy and suggest measures for sustainable water management.
Why in news: A study by Earth's Future revealed that 84% of tracked wetlands are drowning due to rising sea levels, posing a threat to ecological and social stability.
The study tracked nearly 450 wetlands over a 20-year period. It found that only 16% of these wetlands are gaining elevation fast enough to outpace sea-level rise, while the Gulf Coast is highlighted as particularly vulnerable due to human pressures.
Prelims pointers (3)
Fact84% of tracked wetlands are being inundated by rising sea levels.
FactOnly 16% of tracked wetlands are gaining elevation fast enough to outpace sea-level rise.
EnvironmentWetlands can survive if they are able to migrate inland into available space.
Mains angle
Q. Discuss the impact of rising sea levels on coastal wetlands and suggest measures to mitigate the ecological and socio-economic risks associated with wetland inundation.
Why in news: The IMD issued a red alert for Meghalaya and Arunachal Pradesh due to extreme rainfall, highlighting the increasing frequency of extreme weather events in the Northeast.
The India Meteorological Department (IMD) issued a red alert for Meghalaya and Arunachal Pradesh. The State Disaster Response Force (SDRF) and National Disaster Response Force (NDRF) are on standby to manage flood risks and landslides in the region.
Prelims pointers (4)
BodyIMD: India Meteorological Department is the primary agency for monitoring and forecasting weather.
BodyNDRF: National Disaster Response Force operates under theMinistry of Home Affairs.
BodySDRF: State Disaster Response Force is the state-level counterpart to the NDRF.
PlaceMeghalaya and Arunachal Pradesh are part of the Northeast region of India.
Mains angle
Q. Discuss the challenges in disaster management and climate resilience in the Northeast region of India, focusing on the impact of extreme rainfall and landslides.
geological vulnerability
early warning systems
community-based disaster management
infrastructure resilience
Keywords: climate resilience · disaster mitigation · early warning systems · geological hazards
Why in news: A KERI study revealed that nearly 49% of the Malankara dam's storage capacity is occupied by silt, posing a significant flood risk to the Muvattupuzha Valley Irrigation Project.
The Kerala Engineering Research Institute (KERI) study (2021) found 48.95% silt accumulation in the Malankara dam (Idukki). This reduces the reservoir's full level from 42m, impacting the management of Thodupuzha and Muvattupuzha rivers.
Prelims pointers (3)
PlaceMalankara Dam is located in the Idukki district of Kerala.
FactSilt occupies 48.95% of the Malankara dam's storage capacity.
BodyKerala Engineering Research Institute (KERI) is the body that conducted the study.
Mains angle
Q. Discuss the challenges posed by siltation in reservoir dams and suggest measures to mitigate flood risks in ecologically sensitive regions like Kerala.