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: The Kerala Forest Department is launching a 100-day action plan to mitigate human-wildlife conflict through infrastructure, technology, and legislative amendments.
The Kerala Forest Department's plan includes solar-powered fencing, a 'Vista Clearance' project for road safety, and satellite rapid response teams. The state government intends to propose legal amendments specifically targeting wild boar and bonnet macaque control.
Prelims pointers (4)
S&TSatellite rapid response teams are being deployed for real-time monitoring of wildlife movements.
FactThe action plan is scheduled for a 100-day implementation period.
EnvironmentWild boars and bonnet macaques are identified as primary species causing conflict in the Kerala region.
BodyThe Forest Department is the primary nodal agency responsible for wildlife management and human-wildlife conflict mitigation.
Mains angle
Q. Discuss the multi-pronged approach required to mitigate human-wildlife conflict in ecologically sensitive zones like Kerala, balancing biodiversity conservation with public safety.
Infrastructure gap: Inadequacy of traditional fencing leading to frequent crop damage and livestock predation.
Legislative bottleneck: Need for specific legal frameworks to manage invasive or nuisance species like wild boars.
Technological integration: Transition from reactive to proactive management using satellite-based rapid response systems.
Why in news: The emergence of the niangtaser cicada in Meghalaya was highlighted as a rare biological phenomenon tied to monsoon cycles and local cultural identity.
The niangtaser cicada is a newly identified species in Meghalaya that remains underground for a four-year cycle. Its emergence is triggered by specific soil moisture and temperature changes coinciding with the annual monsoon season.
Prelims pointers (4)
EnvironmentNiangtaser cicada: A newly identified insect species in Meghalaya, India.
FactThe niangtaser cicada follows a four-year underground emergence cycle.
PlaceSaiden village, Meghalaya: The primary site for the niangtaser cicada emergence.
S&TEnvironmental triggers: Soil moisture and temperature changes determine the cicada's emergence cycle.
Mains angle
Q. Discuss the significance of indigenous biodiversity in shaping local cultural identities and the importance of preserving such niche ecosystems in Northeast India.
Eco-cultural synergy: Integration of local folklore and traditional knowledge in biodiversity conservation efforts
Climate sensitivity: Vulnerability of niche species to shifting monsoon patterns and soil moisture fluctuations
Community-led conservation: Potential for community-based monitoring of rare species to prevent ecological degradation
Why in news: Tamil Nadu extended its peak summer heat into June with temperatures exceeding 40°C, prompting the implementation of the Heat Action Plan 2026 to protect vulnerable populations.
Tamil Nadu has officially implemented the Heat Action Plan 2026 to mitigate extreme heat. The plan includes vulnerability mapping and early warning systems to assist gig workers and elderly residents facing heat stress.
Prelims pointers (3)
FactTemperatures in several Tamil Nadu districts exceeded 40°C during the extended summer period.
SchemeHeat Action Plan 2026: A state-level initiative in Tamil Nadu for heat stress mitigation.
S&TEl Nino: A climate pattern involving the warming of surface waters in the eastern tropical Pacific Ocean.
Mains angle
Q. Discuss the socio-economic implications of rising heat stress in India and evaluate the effectiveness of state-level Heat Action Plans in protecting vulnerable urban populations.
Urban heat island effect: Concentration of heat in densely populated areas with low green cover and high concrete density.
Labor rights gap: Lack of mandatory cooling breaks and hydration protocols for outdoor gig workers and construction laborers.
Infrastructure deficit: Inadequate public cooling centers and water distribution systems in high-vulnerability zones.
Keywords: Heat Action Plan · Vulnerability Mapping · Climate Adaptation · Heat Stress · El Nino · Urban Resilience
Why in news: Kaziranga National Park released its first scientific report confirming a thriving population of the globally vulnerable greater hog badger.
The study was conducted by Kaziranga’s Tiger Cell in collaboration with Wildlife Conservation Trust and The Fishing Cat Project. It estimated at least 55 individuals of the greater hog badger within an area of approximately 1,100 sq. km.
Prelims pointers (3)
EnvironmentGreater hog badger: A globally vulnerable mammal species found in the wild.
PlaceKaziranga National Park and Tiger Reserve: Located in Assam, India.
FactPopulation estimate: At least 55 individuals identified in a 1,100 sq. km area.
Mains angle
Q. Discuss the significance of scientific monitoring and habitat conservation in ensuring the survival of elusive and globally vulnerable species in protected areas like Kaziranga.
Ecological indicator: Presence of elusive mammals signifies healthy biodiversity and robust ecosystem integrity.
Data-driven conservation: Scientific assessment enables targeted habitat management and population monitoring for vulnerable species.
Habitat connectivity: Importance of maintaining diverse habitats to support species movement and breeding cycles.
Keywords: Biodiversity conservation · Scientific monitoring · Endangered species · Habitat integrity · Ecosystem health
Why in news: The Uttar Pradesh government is deploying drone surveys and GIS-based dashboards to achieve zero discharge into rivers under the National Mission for Clean Ganga.
The initiative covers over 400 kilometers of major river systems in districts including Kanpur, Varanasi, and Prayagraj. It utilizes geospatial technology to map drain discharge points and feed data into a live GIS-based Drain Dashboard for basin-level monitoring.
Prelims pointers (4)
BodyNational Mission for Clean Ganga (NMCG) is the nodal agency for river rejuvenation in India
FactThe drone survey initiative has already completed mapping of over 400 kilometers of river systems
PlaceKey districts involved in the drone survey include Kanpur, Varanasi, Prayagraj, Hardoi, Ballia, Meerut, and Mirzapur
S&TGIS (Geographic Information System) is used for real-time basin-level pollution monitoring and drain mapping
Mains angle
Q. Examine how the integration of geospatial technologies and drone surveillance can enhance the efficacy of river rejuvenation missions like the National Mission for Clean Ganga.
Data-driven enforcement: Real-time GIS dashboards enable pinpointing of illegal industrial discharge points for immediate regulatory action
Technological scalability: Drone surveys overcome geographical barriers in mapping complex urban and rural drain networks
Inter-agency coordination: Requirement for seamless data sharing between state pollution boards and the NMCG for basin-level management
Keywords: Geospatial technology · Basin-level monitoring · Zero discharge · River rejuvenation · Real-time data
Why in news: NOAA declared the start of a potentially record-breaking El Niño, which is expected to significantly influence global weather patterns and exacerbate global warming.
The National Oceanic and Atmospheric Administration (NOAA) officially declared the onset of El Niño, characterized by warmer-than-normal sea surface temperatures in the eastern tropical Pacific. This specific event is projected to be among the strongest on record, posing risks of severe drought in Indonesia and the Sahel region.
Prelims pointers (4)
S&TEl Niño: A climate pattern involving the warming of surface waters in the eastern tropical Pacific Ocean.
FactNOAA: The primary US agency responsible for monitoring and reporting on climate phenomena like El Niño.
EnvironmentSahel Region: A transition zone in Africa prone to severe drought during strong El Niño years.
S&TPositive Feedback Loop: Strong El Niño events can lead to a significant spike in global mean temperatures.
Mains angle
Q. Analyze how extreme climate phenomena like El Niño exacerbate the vulnerabilities of agrarian economies in the Global South and suggest mitigation strategies.
Hydrological stress: Increased frequency of prolonged droughts in the Sahel and Southeast Asia affecting food security.
Thermal feedback: Accelerated melting of polar ice due to temporary spikes in global mean surface temperatures.
Economic volatility: Disruption of global supply chains and agricultural yields due to unpredictable extreme weather events.
Keywords: Climate Variability · Anthropogenic Warming · Hydrological Stress · Global Temperature Anomalies · Climate Resilience
Why in news: Haryana Chief Secretary Anurag Rastogi set a December 2027 deadline for completing sewage-treatment and industrial-effluent-management projects to mitigate Yamuna pollution.
The Haryana State Pollution Control Board reported that projects for 425 MLD of additional sewage treatment capacity and 150 MLD of industrial effluent treatment capacity are currently underway. The initiative includes the development of STPs, CETPs, micro-STPs, and effluent-tapping infrastructure across the Yamuna catchment.
Prelims pointers (4)
Fact425 MLD: Additional sewage treatment capacity currently under project implementation in Haryana.
Fact150 MLD: Industrial effluent treatment capacity currently under project implementation in Haryana.
PlaceYamuna catchment: The geographical area targeted for pollution-control projects by the Haryana government.
BodyHaryana State Pollution Control Board: The body responsible for reporting progress on effluent-tapping and treatment infrastructure.
Mains angle
Q. Discuss the institutional and logistical challenges in managing trans-boundary river pollution in India, with specific reference to the Yamuna river's ecological health.
Inter-state coordination: Lack of unified regulatory framework for river basin management across state boundaries
Enforcement gap: Difficulty in monitoring and penalizing unauthorized industrial discharges in rural catchment areas
Infrastructure bottleneck: High capital intensity and technical complexity of establishing large-scale CETPs and STPs
Why in news: Tamil Nadu Minister for Energy Resources C.T.R. Nirmalkumar announced a comprehensive ecosystem approach to accelerate the state's transition to clean energy through wind, solar, and green hydrogen.
The Tamil Nadu government plans to utilize wind, solar, pumped hydro, and battery storage technologies. The initiative aims to leverage existing infrastructure to attract investments and position the state as a leader in offshore wind and green hydrogen.
Prelims pointers (3)
FactTamil Nadu's clean energy portfolio includes wind, solar, pumped hydro, and battery storage.
S&TOffshore wind and green hydrogen are identified as key focus areas for the state's energy transition.
PostC.T.R. Nirmalkumar is the Minister for Energy Resources and Law in Tamil Nadu.
Mains angle
Q. Discuss the role of state-led initiatives in achieving India's clean energy transition goals. How can Tamil Nadu's model of integrating battery storage and green hydrogen serve as a blueprint?
Infrastructure synergy: Integrating pumped hydro and battery storage to manage intermittency of solar/wind
Investment attraction: Leveraging existing renewable expertise to secure private capital for offshore wind projects
Technological diversification: Transitioning from traditional renewables to green hydrogen and offshore wind ecosystems
Keywords: Renewable Energy Transition · Green Hydrogen · Pumped Hydro · Energy Ecosystem · Offshore Wind · Decarbonization
Why in news: The Delhi High Court expressed concern over the Centre's plan to redevelop the Jaipur Polo Ground, questioning the loss of green spaces and the motives behind the eviction order.
The Centre issued an eviction order under the Public Premises (Eviction of Unauthorised Occupants) Act to redevelop the Jaipur Polo Ground for a 'larger public purpose'. The High Court stayed the execution of this order until June 12, 2026, while directing a district court to hear a stay application by the IPA.
Prelims pointers (3)
Act / BillPublic Premises (Eviction of Unauthorised Occupants) Act: Law used by the Centre to issue the eviction order.
PlaceJaipur Polo Ground: Site of the proposed redevelopment and green space loss in Delhi.
BodyDelhi High Court: Judicial body that stayed the eviction order until June 12.
Mains angle
Q. Critically analyze the conflict between urban infrastructure development and the preservation of urban green spaces in rapidly expanding metropolitan cities like Delhi.
Ecological degradation: Loss of carbon sinks and biodiversity in urban heat islands
Judicial oversight: Balancing 'public purpose' definitions against environmental conservation mandates
Urban planning: Lack of integrated green-space preservation in large-scale redevelopment projects
Keywords: Urban Heat Island · Public Purpose · Environmental Governance · Judicial Review · Sustainable Urbanization
Why in news: The Centre's proposed ₹91,000 crore Great Nicobar Island development project is facing scrutiny over its lack of clear strategic objectives and the PPPAC's refusal of Viability Gap Funding.
The project involves the construction of a port, airport, power plant, and township on Great Nicobar Island. Scientists warn of irreversible loss of primary rainforest, while tribal councils allege lack of full disclosure regarding consent and resettlement.
Prelims pointers (3)
FactThe estimated cost of the Great Nicobar Island development project is ₹91,000 crore.
BodyPPPAC (Public-Private Partnership Advisory Council) refused Viability Gap Funding for the project.
PlaceGreat Nicobar Island is the site of the proposed port, airport, and township development.
Mains angle
Q. Critically analyze the conflict between large-scale infrastructure development and the preservation of fragile island ecosystems and indigenous rights in India.
Ecological degradation: Irreversible loss of primary rainforest and biodiversity in fragile island ecosystems
Procedural injustice: Concerns over informed consent and transparency in resettlement promises to tribal communities
Fiscal viability: Lack of clear strategic objectives and refusal of Viability Gap Funding by PPPAC
Keywords: Ecological integrity · Informed consent · Sustainable development · Biodiversity loss · Tribal rights
Why in news: Kaziranga National Park and Tiger Reserve, in collaboration with Gauhati University, conducted a survey revealing the presence of 30 raptor and six stork species
The survey conducted between late February and March recorded 217 individual raptors across 30 species and 266 individual storks across six species. The Eastern Assam Wildlife Division recorded the highest number of these species.
Prelims pointers (2)
EnvironmentPallas’s fish eagle: Identified as an endangered bird species inhabiting Kaziranga National Park.
PlaceEastern Assam Wildlife Division: Recorded the highest number of raptor and stork species in the survey.
Mains angle
Q. Discuss the significance of protected areas like Kaziranga in conserving avian biodiversity and the role of academic-institutional collaborations in wildlife monitoring.
Habitat connectivity: Ensuring ecological corridors for migratory and endangered raptor species
Why in news: The United Sangtam Likhum Pumji (USLP) imposed a ban on pangolin hunting across 42 villages in Kiphire district, Nagaland, to combat illegal wildlife trafficking.
The United Sangtam Likhum Pumji (USLP) is the apex tribal body of the Sangtam Naga community. The ban covers 42 villages in the Kiphire district of Nagaland to protect pangolins from hunting and trafficking.
Prelims pointers (3)
EnvironmentPangolins are mammals trafficked for their scales and meat.
PlaceKiphire is a district in the state of Nagaland.
BodyUnited Sangtam Likhum Pumji (USLP) is the apex tribal body of the Sangtam Naga community.
Mains angle
Q. Discuss how community-led conservation and traditional laws can be integrated with state-led wildlife protection frameworks to combat illegal wildlife trafficking in India.
Institutional synergy: Integrating tribal customary laws with the Wildlife Protection Act framework
Ecological interdependence: Addressing cascading effects of pangolin loss on forest biodiversity and agriculture
Socio-cultural shift: Transitioning from traditional hunting beliefs to community-led conservation models
Keywords: Community-led conservation · Customary law · Biodiversity loss · Wildlife trafficking · Ecological balance
Why in news: A Caracal was recorded in camera trap footage at Kuno National Park, Madhya Pradesh, after decades, which Chief Minister Dr Mohan Yadav attributed to the success of Project Cheetah in restoring the ecosystem.
The Caracal is one of India's rarest wild cats. Its presence in Kuno National Park is considered a key indicator of healthy prey populations and a functioning ecosystem.
Prelims pointers (2)
EnvironmentCaracal: One of India's rarest wild cats recorded in Kuno National Park
FactThe sighting occurred after decades of absence
Mains angle
Q. Discuss how the reintroduction of apex predators and the restoration of ecological balance contribute to the long-term sustainability of biodiversity in protected areas.
Trophic cascade: Restoration of predator-prey dynamics ensuring vegetation health
Habitat connectivity: Importance of corridor management for rare feline species movement
Indicator species: Using predator presence to measure ecosystem health and prey density
Why in news: The Tamil Nadu Forest Department reported a 4.68% increase in the Nilgiri Tahr population to 1,364 individuals during a 2026 estimation exercise.
The population estimation was conducted across 14 forest divisions between April 24-27, 2026. The Pollachi Forest Division recorded the highest population with 438 individuals.
Prelims pointers (4)
EnvironmentNilgiri Tahr: An endangered species found exclusively in the Southern Western Ghats.
FactNilgiri Tahr population in Tamil Nadu: 1,364 individuals as of June 2026.
PlacePollachi Forest Division: Recorded the highest Nilgiri Tahr population (438) in the study.
FactPopulation growth: 4.68% increase over the previous year.
Mains angle
Q. Discuss the ecological significance of the Nilgiri Tahr in high-altitude mountain ecosystems and evaluate the effectiveness of population monitoring in biodiversity conservation.
Ecological role: Vital contribution to nutrient cycling in high-altitude mountain ecosystems
Conservation monitoring: Importance of synchronized population estimation for endangered species management
Keywords: Biodiversity Conservation · Endangered Species · Nutrient Cycling · Population Dynamics · Western Ghats
Why in news: The India Meteorological Department (IMD) issued red and orange alerts as the Southwest monsoon set in over Kerala on June 5, 2026, predicting heavy to very heavy rainfall across several states.
The IMD issued red alerts for five districts in Kerala and orange alerts for other states. Predicted rainfall for Kerala and Karnataka is between 7-20cm, with heavy rainfall expected to continue in Northeast India.
Prelims pointers (3)
BodyIMD: India Meteorological Department is the official agency for weather forecasting and monsoon tracking.
FactSouthwest Monsoon: Expected rainfall of 7-20cm over Kerala and Karnataka.
FactRed Alert: Issued by IMD for five districts in Kerala for heavy to very heavy rainfall.
Mains angle
Q. Discuss the impact of the Southwest Monsoon on India's agricultural economy and the challenges in managing monsoon-related flood disasters in coastal states.
Hydrological risk: Increasing frequency of extreme rainfall events causing flash floods in Kerala and Karnataka
Agricultural dependency: Vulnerability of monsoon-dependent crops to erratic rainfall patterns and heavy precipitation
Early warning systems: Limitations in real-time disaster response despite IMD's red alert protocols
Why in news: A study highlights that global mangrove forests have shown a net recovery since 2010 due to increased legal protections and natural regeneration following major disasters.
Since 2010, the world has gained more mangroves than it has lost. Significant recovery and reduced deforestation were noted in Indonesia and Myanmar following the 2004 Indian Ocean tsunami and Cyclone Nargis.
Prelims pointers (2)
PlaceIndonesia and Myanmar were identified as key areas where reduced deforestation and protection spurred mangrove recovery.
EnvironmentMangroves are noted for their role in protecting coastal communities and absorbing carbon dioxide.
Mains angle
Q. Discuss the ecological and socio-economic significance of mangrove ecosystems in coastal resilience and the trade-offs involved in large-scale restoration efforts.
Ecological trade-off: Potential for upstream environmental degradation caused by downstream mangrove expansion
Climate mitigation: Mangroves as high-capacity carbon sinks and natural barriers against coastal erosion
Policy-driven recovery: Impact of post-disaster legal protections on biodiversity conservation
Why in news: The Union Cabinet approved a Rs 9,585 crore scheme to reduce air pollution in Delhi-NCR by incentivizing the replacement of old trucks and buses with BS-VI or electric vehicles.
The scheme has a total financial outlay of Rs 9,585 crore and is designed to run for two years. It targets approximately 2.07 lakh vehicle owners across Delhi, Haryana, Rajasthan, and Uttar Pradesh.
Prelims pointers (5)
FactTotal financial outlay for the Delhi-NCR air pollution scheme is Rs 9,585 crore.
BodyThe National Capital Region Planning Board (NCRPB) is the implementing body for the scheme.
FactThe scheme aims to benefit approximately 2.07 lakh vehicle owners.
FactThe scheme covers the states of Delhi, Haryana, Rajasthan, and Uttar Pradesh.
FactIncentives include switching to BS-VI or electric vehicles and providing fuel vouchers.
Mains angle
Q. Discuss the effectiveness of fiscal incentives and regulatory frameworks in tackling regional air pollution in the National Capital Region.
Inter-state coordination: Challenges in harmonizing transport policies across Delhi, Haryana, Rajasthan, and Uttar Pradesh.
Fiscal sustainability: Balancing high capital outlay for vehicle subsidies against long-term environmental health gains.
Infrastructure gap: Requirement for expanded charging networks to support the transition to electric heavy-duty vehicles.
Keywords: Air Quality Management · Fiscal Incentives · BS-VI Standards · Electric Mobility · Regional Cooperation
Why in news: Dr. Therese M. Karlsson of IPEN and Joseph Hoover highlighted the environmental and health risks posed by the open burning of exported plastic waste in poorer nations.
Developed countries export plastic waste to poorer nations where contamination often prevents proper recycling. This leads to open burning, releasing harmful pollutants into the atmosphere and harming local ecosystems.
Prelims pointers (3)
EnvironmentOpen burning of plastic waste releases harmful pollutants into the atmosphere.
FactPlastic waste is often exported from developed countries to poorer nations for processing.
BodyInternational Pollutants Elimination Network (IPEN) is an organization involved in monitoring plastic pollution.
Mains angle
Q. Discuss the environmental and public health implications of the global plastic waste trade and suggest measures to mitigate the hazards of open burning in developing nations.
Regulatory gap: Lack of transparency and enforcement in international plastic waste trade agreements
Infrastructure deficit: Inadequate waste management facilities in developing nations to handle contaminated plastic
Health externality: Respiratory and systemic health risks to local communities due to atmospheric pollutants
Why in news: Odisha CM Mohan Majhi announced that tigress Zeenat, relocated from Maharashtra's Tadoba-Andhari Tiger Reserve in 2025, successfully gave birth to four cubs in Similipal Tiger Reserve.
Tigress Zeenat was relocated from Tadoba-Andhari Tiger Reserve (Maharashtra) to Similipal Tiger Reserve (Odisha) in 2025. The translocation was supported by the National Tiger Conservation Authority (NTCA) following previous failed attempts in Satkosia Tiger Reserve.
Prelims pointers (4)
PlaceSimilipal Tiger Reserve is located in Odisha
PlaceTadoba-Andhari Tiger Reserve is located in Maharashtra
BodyNational Tiger Conservation Authority (NTCA) supports tiger translocation and conservation
FactTigress Zeenat gave birth to four cubs in Similipal Tiger Reserve
Mains angle
Q. Discuss the significance of tiger translocation and habitat management in ensuring the genetic diversity and population stability of tigers in India.
Genetic diversity: Mitigating inbreeding depression in isolated tiger populations
Habitat suitability: Importance of acclimatization periods and prey density in translocation success
Institutional coordination: Role of NTCA in inter-state wildlife movement and monitoring
Why in news: The World Meteorological Organization (WMO) issued a warning that an 80% likely El Niño development during June-August will trigger extreme global temperature and rainfall patterns.
The WMO stated that the ENSO phase is currently neutral but showing signs of approaching El Niño conditions. UN Secretary-General Antonio Guterres characterized El Niño as a 'climate warning' for a warming world.
Prelims pointers (3)
FactThe WMO reported an 80% certainty of El Niño development during the June-August period.
S&TThe Relative Oceanic Niño Index (ONI) is used to determine the phase of ENSO.
BodyThe World Meteorological Organization (WMO) is the UN agency responsible for monitoring global weather patterns.
Mains angle
Q. Discuss how the increasing frequency and intensity of El Niño events pose a threat to global climate stability and food security.
Hydrological volatility: Erratic monsoon patterns and extreme rainfall leading to localized flooding and droughts
Agricultural vulnerability: Heat stress and moisture stress affecting crop yields in El Niño-sensitive regions
Why in news: The Maharashtra government faced scrutiny for exempting an iron ore mining project in Gadchiroli from wildlife clearance despite the site being located within the Tadoba-Indravati tiger corridor.
The project is located in Gadchiroli, Maharashtra. The National Tiger Conservation Authority (NTCA) mandates that corridors identified in approved Tiger Conservation Plans (TCPs) must be scrutinized under the Wildlife Act. The Chief Wildlife Warden initially exempted the project before withdrawing the letter following a review.
Prelims pointers (4)
PlaceGadchiroli: District in Maharashtra where the iron ore mining project is located
BodyNational Tiger Conservation Authority (NTCA): Body responsible for tiger conservation and corridor identification
EnvironmentTadoba-Indravati: Tiger corridor identified in official records for wildlife protection
FactWildlife Act: The primary legislation governing wildlife clearance and project scrutiny
Mains angle
Q. Discuss the conflict between industrial development and wildlife conservation in tiger corridors. How can India balance mineral extraction with the protection of endangered species?
Regulatory oversight: Discrepancy between state-level wildlife clearances and NTCA-identified tiger corridors
Ecological fragmentation: Impact of mining activities on migratory pathways and genetic diversity of tigers
Institutional accountability: Need for standardized verification of forest compartment data before granting mining exemptions
Why in news: The India Meteorological Department (IMD) reported a steady rise in India's nighttime temperatures, with 2024 recording the highest annual average minimum temperature since 2000.
IMD data indicates a pronounced warming trend in minimum temperatures after the year 2000. This trend is linked to increased heat stress on public health and a surge in national electricity demand.
Prelims pointers (2)
Fact2024 marked the highest annual average minimum temperature in India since 2000.
PlaceThe warming trend is observed across India's national territory.
Mains angle
Q. Discuss the socio-economic and public health implications of rising nighttime temperatures in India and suggest measures to mitigate the resulting strain on the national power grid.
Public health risk: Increased heat stress and sleep disruption for vulnerable populations in poorly ventilated housing.
Grid instability: Rising electricity demand for cooling leading to potential power outages and infrastructure strain.
Keywords: Heat stress · National grid strain · Vulnerable populations · Climate change adaptation · Minimum temperature trends
Why in news: UN climate chief Simon Stiell warned that fossil fuel-driven climate change is intensifying India's extreme heat conditions, supported by a study in PLOS Climate.
A study in PLOS Climate predicts more dangerous heatwaves, irregular monsoons, and stronger cyclones for India. The report highlights impacts such as melting glaciers, water shortages, and rising sea levels threatening coastal cities.
Prelims pointers (3)
S&TPLOS Climate: A scientific journal reporting on climate impacts and fossil fuel consequences.
FactClimate impacts in India include melting glaciers, rising sea levels, and unpredictable rainfall.
PostSimon Stiell: United Nations climate chief.
Mains angle
Q. Discuss the impact of fossil fuel-driven climate change on India's hydrological and coastal systems. Suggest measures for a faster transition to clean energy.
Hydrological stress: Irregular monsoons and melting glaciers causing acute water shortages and flood risks.
Why in news: A study in *Science Advances* revealed that marine heatwaves 'supercharge' tropical cyclones, increasing the likelihood of rapid intensification and causing 60% more damage.
Researchers from The University of Alabama analyzed over 40 years of data to link marine heatwaves to cyclone intensity. The study identified increasing heatwave frequencies in the East Pacific, North Atlantic, and North Indian Ocean basins.
Prelims pointers (3)
FactMarine heatwaves increase the chance of billion-dollar cyclone disasters by 60%.
PlaceActive tropical cyclone basins identified with increasing heatwaves: East Pacific, North Atlantic, and North Indian Ocean.
S&TStudy published in *Science Advances* by researchers from The University of Alabama.
Mains angle
Q. Discuss how marine heatwaves exacerbate the intensity of tropical cyclones and the implications for coastal disaster management in the North Indian Ocean.
Meteorological feedback: Thermal energy from marine heatwaves accelerating rapid cyclone intensification
Infrastructure vulnerability: Increased frequency of billion-dollar disasters straining coastal disaster-resilience budgets
Why in news: The India Meteorological Department (IMD) issued an 'Extremely Severe Alert' via a cell broadcast system for thunderstorms in Delhi-NCR, sparking debate over the severity of alert levels for moderate weather.
The IMD issued district-wise nowcast warnings for thunderstorms with gusty winds up to 100 kmph. The alert was disseminated using a cell broadcast system to warn of life-threatening disasters like cyclones and heavy rainfall.
Prelims pointers (1)
FactThe nowcast warnings predicted gusty winds up to 100 kmph in several states.
Mains angle
Q. Discuss the importance of early warning systems and cell broadcast technology in enhancing disaster resilience against extreme weather events in India.
Communication gap: Balancing alert urgency to prevent 'alarm fatigue' while ensuring timely warnings for life-threatening events
Technological integration: Leveraging cell broadcast systems to reach rural and urban populations simultaneously during rapid-onset disasters
Keywords: Early Warning System · Disaster Resilience · Cell Broadcast · Climate Adaptation · Public Safety
Why in news: NTPC Renewable Energy Limited's proposed solar project in the Chhari Dhand wetland conservation reserve has sparked protests from Maldhari pastoralists and conservationists over ecological and livelihood impacts.
The project is planned for the Chhari Dhand wetland conservation reserve in Gujarat. Local Maldhari pastoralists rely on the surrounding grasslands for grazing and livelihood. The site is noted for its migratory bird populations and proximity to Kiro Hill.
Prelims pointers (3)
PlaceChhari Dhand: A wetland conservation reserve located in Gujarat.
FactMaldhari: A pastoralist community in Gujarat whose livelihood depends on grassland grazing.
EnvironmentChhari Dhand is a site for migratory bird populations.
Mains angle
Q. Discuss the conflict between large-scale renewable energy infrastructure and the preservation of traditional pastoral livelihoods and biodiversity in ecologically sensitive zones.
Livelihood displacement: Loss of grazing land for Maldhari pastoralists impacting traditional socio-economic structures
Ecological degradation: Potential impact of solar infrastructure on migratory bird habitats and wetland biodiversity
Regulatory oversight: Need for rigorous environmental impact assessments (EIA) in conservation reserves
Why in news: Conservationists Parveen Shaikh and Barkha Subba were awarded the Whitley Awards 2026 for their respective work in protecting the Indian skimmer and the Himalayan salamander.
Parveen Shaikh's intervention increased Indian skimmer nest survival rates from 14% to 27%. Barkha Subba's work focuses on the Himalayan salamander through habitat restoration and community engagement.
Prelims pointers (4)
EnvironmentIndian skimmer: An endangered bird species in India.
EnvironmentHimalayan salamander: An endangered amphibian species in the Himalayan region.
BodyWhitley Awards: Known as the 'Green Oscars', these awards recognize grassroots conservation leaders from the Global South.
FactNest survival rates for the Indian skimmer increased from 14% to 27% under Shaikh's efforts.
Mains angle
Q. Discuss the significance of community-led conservation models in preserving India's biodiversity and mitigating the impacts of climate change.
Community-centric model: Leveraging local knowledge and engagement to ensure long-term habitat restoration
Biodiversity loss mitigation: Addressing specific threats to endemic species like the Himalayan salamander
Funding mechanisms: The role of international awards in scaling grassroots conservation efforts
Keywords: Biodiversity conservation · Grassroots leadership · Habitat restoration · Endangered species · Community engagement
Why in news: The World Meteorological Organisation (WMO) warned that global average temperatures are likely to remain at or near record levels from 2026-2030, with a high probability of surpassing the 1.5°C threshold.
The WMO predicts a 75% chance that the five-year mean temperature (2026-2030) will exceed 1.5°C above pre-industrial levels. The report attributes this trend to a predicted El Nino effect in late 2026 and highlights a significant increase in Arctic temperatures over the next five northern hemisphere winters.
Prelims pointers (5)
Fact75% chance that the 2026-2030 five-year mean temperature will surpass the 1.5°C threshold
Fact91% chance of exceeding 1.5°C at least once between 2026 and 2030
FactPredicted temperature range for 2026-2030 is 1.3 to 1.9°C above pre-industrial levels
S&TEl Nino effect predicted for late 2026 is a primary driver for record-breaking temperatures
BodyWorld Meteorological Organisation (WMO) issued the warning
Mains angle
Q. Discuss the implications of persistent global temperature records on achieving the Paris Agreement goals and the role of El Nino in exacerbating climate volatility.
Feedback loops: Accelerated Arctic warming leading to further reduction in planetary albedo
Policy friction: Difficulty in meeting 1.5°C targets despite international decarbonization commitments
Meteorological volatility: Increasing frequency of extreme weather events driven by El Nino-Southern Oscillation
Keywords: Climate Change · El Nino · Paris Agreement · Global Warming · Arctic Amplification
Why in news: The Greater Chennai Corporation (GCC) is mandating online registration for Bulk Waste Generators (BWGs) to enforce the Solid Waste Management Rules, 2026.
The Solid Waste Management Rules, 2026 were issued by the Union government and became effective on April 1, 2026. The GCC requires BWGs to register on a dedicated portal within 15 days of receiving a notice from zonal officers.
Prelims pointers (3)
FactSolid Waste Management Rules, 2026 came into effect on April 1, 2026
BodyGreater Chennai Corporation (GCC) is the local body enforcing the registration
FactBWGs must register within 15 days of receiving notice from zonal officers
Mains angle
Q. Discuss the challenges in implementing decentralized waste management for bulk generators in rapidly urbanizing Indian cities and suggest measures to ensure compliance.
Regulatory bottleneck: Difficulty in monitoring decentralized waste streams from diverse commercial and residential bulk generators
Infrastructure gap: Requirement for localized processing units to prevent transport-related carbon emissions and landfill pressure
Why in news: Conservationists and academic bodies gathered in Jamshedpur to advocate for a national legal framework and parliamentary Bill to protect India's rivers and mountains.
Representatives from Tarun Bharat Sangh, IIT Dhanbad, and Jal Biradari participated in the summit. The proposal advocates for institutional mechanisms to govern and ensure the rights of rivers and mountains as natural resources.
Prelims pointers (3)
PlaceJamshedpur: Location of the summit for drafting the river and mountain protection framework
PostRajendra Singh: Water conservationist who advocated for the protection of natural resources for future generations
BodyIIT Dhanbad: Academic institution involved in the summit for drafting the legal framework
Mains angle
Q. Discuss the necessity of a dedicated legal framework for the protection of rivers and mountains in India to ensure ecological sustainability and intergenerational equity.
Institutional gap: Lack of a unified national legal framework for mountain and river ecosystems
Rights-based approach: Transitioning from resource exploitation to recognizing the inherent rights of natural bodies
Intergenerational equity: Legal mechanisms to ensure ecological preservation for future generations
Why in news: Lieutenant-Governor Vinai Kumar Saxena launched an ecological restoration project in Ladakh to reclaim 800 acres of barren land near Spituk using excess water from the Igoo-Phey irrigation canal.
The project aims to reclaim 800 acres of barren land near Spituk, Ladakh. It utilizes excess water from the restored Igoo-Phey irrigation canal to replenish aquifers and trigger natural vegetation growth.
Prelims pointers (4)
PlaceSpituk is a location in Ladakh where the ecological restoration project is being implemented.
FactThe project aims to reclaim nearly 800 acres of barren land.
FactThe project aligns with the national vision to restore 26 million hectares of degraded land by 2030.
S&TThe project uses excess water from the Igoo-Phey irrigation canal to replenish depleted aquifers.
Mains angle
Q. Discuss the significance of ecological restoration projects in high-altitude desert regions like Ladakh for ensuring long-term environmental sustainability and agricultural viability.
Hydrological synergy: Utilizing irrigation canal surplus to recharge depleted aquifers in arid zones
Soil health restoration: Transitioning barren land to sustainable agriculture and afforestation zones
Policy alignment: Local ecological initiatives contributing to the national target of restoring 26 million hectares of degraded land
Why in news: The Federation of Bengaluru Lakes and local communities have flagged concerns over the BWSSB's plan to construct sewage treatment plants (STPs) on the lake beds of Soulkere and Hulimavu lakes.
The Bangalore Water Supply and Sewerage Board (BWSSB) plans to build STPs on Soulkere and Hulimavu lake beds. The Federation of Bengaluru Lakes argues this violates protected zone and wetland regulations.
Prelims pointers (3)
PlaceSoulkere and Hulimavu lakes are located in Bangalore (Bengaluru).
BodyBWSSB: Bangalore Water Supply and Sewerage Board.
BodyKarnataka Tank Conservation and Development Authority: The body that approved the BWSSB projects.
Mains angle
Q. Discuss the ecological implications of constructing industrial infrastructure on urban wetlands and suggest measures to balance urban waste management with biodiversity conservation.
Ecological degradation: Loss of natural flood mitigation and biodiversity in protected wetland zones.
Regulatory oversight: Conflict between state-level development approvals and environmental protection norms.
Why in news: 49 organizations and 553 individuals sent a letter to CJI Surya Kant demanding the withdrawal of his oral remarks from May 11th
The letter was addressed to CJI Surya Kant by 49 organizations, collectives, and 553 environmentalists, academics, and citizens. The signatories argue that the remarks are factually inaccurate and constitutionally troubling regarding the role of citizens in environmental scrutiny.
Prelims pointers (3)
PostSurya Kant: Chief Justice of India (CJI) as of May 2026
Fact553 environmentalists, academics, and citizens signed the letter
Fact49 organizations and collectives joined the demand for withdrawal
Mains angle
Q. Discuss the role of Public Interest Litigation (PIL) in ensuring environmental justice and the importance of citizen participation in environmental decision-making in India.
Judicial oversight: Balancing the judiciary's role as a protector of environmental rights vs. its role in administrative scrutiny
Citizen agency: Transitioning from 'obstacles' to 'rights-bearing participants' in environmental governance
Legal legitimacy: Ensuring PIL remains a tool for lawful scrutiny rather than a tool for arbitrary obstruction
Keywords: Public Interest Litigation · Environmental Governance · Judicial Activism · Citizen Participation · Constitutional Rights
Why in news: Wetlands International South Asia and conservationists are urging for sustainable practices to protect the unique ecosystem of Loktak Lake in Manipur.
Loktak Lake in Manipur is characterized by 'phumdis', which are floating masses of vegetation and organic matter. It is a habitat for the endangered sangai deer and the king cobra, one of the world's longest venomous snakes.
Prelims pointers (4)
PlaceLoktak Lake is located in the state of Manipur, India.
EnvironmentPhumdis are floating islands of vegetation and organic matter found in Loktak Lake.
EnvironmentThe endangered sangai deer is a native species of Loktak Lake.
EnvironmentThe king cobra, one of the world's longest venomous snakes, is found in this lake's habitat.
Mains angle
Q. Discuss the ecological significance of floating wetlands like Loktak Lake and the challenges in balancing local livelihoods with biodiversity conservation.
Ecological integrity: Preservation of unique phumdi formations and endemic species like the sangai deer
Conservation-Livelihood conflict: Balancing traditional fishing/farming practices with wetland protection mandates
Institutional oversight: Role of international and national bodies in managing fragile inland water bodies
Why in news: A pre-monsoon convective system and western disturbance caused severe thunderstorms and heavy rain in Uttar Pradesh, resulting in 111 deaths and highlighting infrastructure vulnerabilities.
The storm affected 26 districts in Uttar Pradesh by May 14th, causing 111 deaths and 72 injuries. The event was driven by a combination of a pre-monsoon convective system and a western disturbance.
Prelims pointers (3)
Fact111 deaths and 72 injuries reported across 26 districts in Uttar Pradesh by May 14th
S&TPre-monsoon convective systems and western disturbances are primary drivers of severe thunderstorms in Northern India
BodyIndia Meteorological Department (IMD) is the primary body responsible for issuing weather warnings in India
Mains angle
Q. Discuss the factors contributing to high mortality during extreme weather events in India and suggest measures to enhance disaster resilience in rural and urban infrastructure.
Infrastructure gap: Inadequate housing and poor drainage systems exacerbating the impact of heavy rainfall
Early warning efficacy: Challenges in translating IMD meteorological alerts into actionable community-level responses
Climate vulnerability: Increasing frequency of convective systems due to changing regional weather patterns
Keywords: convective system · western disturbance · disaster resilience · infrastructure vulnerability · early warning systems
Why in news: NOAA, BoM, and ECMWF have increased confidence in a developing 'super El Niño' event in the tropical Pacific, which may push global temperatures above 2.5C by autumn 2026.
The NOAA, Bureau of Meteorology (BoM), and ECMWF are monitoring a rapid warming trend in the tropical Pacific. The event is predicted to potentially cause global temperatures to surpass 2.5C, leading to regional flooding, droughts, and agricultural disruptions.
Prelims pointers (3)
FactProjected temperature threshold: Potential for global temperatures to surpass 2.5C by autumn 2026.
BodyECMWF: European Centre for Medium Range Weather Forecasts.
BodyBoM: Bureau of Meteorology (Australia).
Mains angle
Q. Discuss how extreme climatic phenomena like 'super El Niño' events exacerbate global food insecurity and necessitate integrated disaster management strategies.
Agricultural volatility: Yield instability due to erratic rainfall and heat stress on staple crops
Humanitarian risk: Correlation between climate-induced harvest failures and spikes in global food prices
Predictive limitations: Challenges in modeling rapid warming trends exceeding established El Niño thresholds
Why in news: Four cheetah cubs were found dead in Kuno National Park, Madhya Pradesh, following a suspected leopard attack, highlighting the difficulties of the cheetah reintroduction program.
Four one-month-old cheetah cubs, born in April 2026, were found dead on May 12, 2026, in Kuno National Park. Post-mortem examinations revealed marks of a leopard attack on the partially eaten carcasses.
Prelims pointers (3)
PlaceKuno National Park is located in Madhya Pradesh
FactThe cheetah reintroduction program in India began in 2022
EnvironmentCheetahs were reintroduced to Kuno National Park as part of a conservation initiative
Mains angle
Q. Discuss the ecological and logistical challenges associated with the reintroduction of apex predators into existing wildlife habitats in India.
Habitat competition: Interspecific conflict between reintroduced cheetahs and indigenous leopard populations
Ecological monitoring: Difficulty in tracking and protecting cubs in open forest environments
Conservation trade-offs: Balancing species preservation with the risks of predator-prey dynamics in fragmented habitats
Why in news: The Tamil Nadu Forest Department reported the successful release of 1.65 lakh Olive Ridley turtle hatchlings into the sea, highlighting improved survival rates due to coordinated conservation efforts.
Tamil Nadu recorded 1,985 turtle nests and collected approximately 2.29 lakh eggs during the current nesting season. The success is attributed to monitoring by the Forest Department, volunteers, and coastal communities.
Prelims pointers (4)
EnvironmentOlive Ridley turtles are a key species monitored for nesting in Tamil Nadu's coastal regions.
FactNearly 1.65 lakh hatchlings were released into the sea during the current nesting season.
FactA total of 1,985 turtle nests were recorded in Tamil Nadu this year.
FactApproximately 2.29 lakh eggs were collected by the Forest Department.
Mains angle
Q. Discuss the importance of community-led conservation models in protecting endangered marine species like the Olive Ridley turtle in India.
Community engagement: Leveraging local coastal knowledge and volunteerism to mitigate poaching and habitat degradation
Inter-agency coordination: Streamlining monitoring protocols between forest departments and coastal management bodies
Why in news: The Chief Minister’s Office (CMO) of Assam announced the sighting of a critically endangered gharial in Kaziranga National Park, a species previously thought to have disappeared from the state's river systems.
A critically endangered gharial was spotted in Kaziranga National Park, Assam, on May 9, 2026. The sighting is being cited by the CMO as a success for the state's wildlife conservation efforts.
Prelims pointers (2)
EnvironmentGharial: A critically endangered reptile species found in river systems.
FactThe sighting occurred on May 9, 2026.
Mains angle
Q. Discuss the significance of community-led and state-led conservation initiatives in restoring endangered aquatic species in India's riverine ecosystems.
Habitat restoration: Re-establishing riparian corridors to support apex aquatic predators
Conservation success: Evidence of effective monitoring and protection in Kaziranga's river systems