Environment

The Hindu Kush Himalaya Monsoon Outlook 2026 by ICIMOD has warned that several parts of the HKH region may face below-normal monsoon rainfall, but the risk of climate hazards such as flash floods, landslides, droughts, heat stress and glacial lake outburst floods remains high. The issue is important for UPSC because it links Himalayan ecology, monsoon variability, El Niño, cryosphere change, disaster management, water security and India’s climate adaptation strategy.

A new Indicators of Global Climate Change study has reported that human-induced global warming reached its highest recorded level in 2025, mainly due to continued greenhouse gas emissions from fossil fuels, industry, land-use change and weakening aerosol cooling. The issue is important for UPSC because it connects climate science, Paris Agreement targets, carbon budgets, energy transition, India’s NDCs, climate justice and disaster-risk planning.

The Great Nicobar Island Development Project has returned to the spotlight after government sources defended the roughly Rs 81,000-crore plan as a strategically vital national initiative, rejecting the charge that it is "one of the biggest scams" and a crime against the island's natural and tribal heritage. The sources clarified that the existing INS Baaz runway will not be extended to the planned 10,000 feet because of the ecological and tribal costs, and argued that India's wider maritime needs cannot be met by expanding defence assets alone. This article explains the project's components, the strategic geography of Great Nicobar, the logic of a transshipment port at Galathea Bay, and the environmental and tribal-rights concerns at the heart of the ecology-versus-security debate.

The first comprehensive Delhi Bird Atlas, released on 5 June 2026, ranks Delhi as the world's second-richest national capital for bird diversity after Nairobi, with 471 species on the city's bird list. Prepared by the Delhi Forest Department with Bird Count India as a citizen-science project, it maps the distribution and abundance of birds using a grid-based method and links Delhi's richness to the Aravalli Ridge, the Yamuna and Sahibi floodplains, and the Central Asian Flyway. This article explains what a bird atlas is, the Central Asian Flyway and global flyways, the species of conservation concern recorded, the citizen-science and eBird method, and India's framework for protecting migratory birds and wetlands — all mapped to the UPSC syllabus.

A cluster of Asiatic lion deaths in Gujarat's Gir landscape in late May 2026, linked to the suspected tick-borne disease Babesiosis, has revived the debate on whether India's only wild lion population is dangerously vulnerable. This article explains Babesiosis and Canine Distemper Virus, the single-population and genetic-bottleneck risk, the 2025 lion census, Project Lion, the stalled Kuno translocation, and the full conservation, legal and international framework for the Asiatic Lion.

The Maharashtra government has exempted a large iron-ore mining and processing project in Gadchiroli from wildlife clearance, stating the site does not fall in any tiger corridor — a claim that official maps and the NTCA-approved Tiger Conservation Plan appear to contradict. The project, involving diversion of 9.4 sq km of forest land by Lloyds Metals & Energy, overlaps the ecologically vital Tadoba–Indravati tiger corridor. This article explains what a tiger corridor is, the legal framework under the Wildlife (Protection) Act, 1972 (Section 38-O), Project Tiger, NTCA, the difference between forest, wildlife and environmental clearances, the role of the Forest Rights Act and PESA, and the development-versus-conservation debate this case raises.

The Supreme Court has invoked its extraordinary powers under Article 142 to crack down on rampant illegal sand mining inside the tri-state National Chambal Gharial Sanctuary, pulling up Rajasthan, Madhya Pradesh and Uttar Pradesh for "casual and indolent" inaction after two forest guards were killed in 2026. This in-depth explainer covers the Chambal sanctuary's unique ecology, the critically endangered gharial, India's sand-mining laws (MMDR Act, Sustainable Sand Mining Guidelines), the Deepak Kumar verdict, denotification controversies, and the constitutional principles of environmental governance — everything a UPSC aspirant needs in one place. Why in News The Supreme Court of India is hearing a suo motu case on large-scale illegal sand mining inside and around the National Chambal (Gharial) Sanctuary, a riverine protected area shared by Rajasthan, Madhya Pradesh and Uttar Pradesh. In a series of strongly worded orders through April and May 2026, the Court has rebuked the three state governments for administrative apathy, linked their inaction to the killing of frontline forest staff, and invoked Article 142 of the Constitution to issue sweeping enforcement directions. The case has brought national attention to sand mining as an environmental and rule-of-law crisis, and to the survival of the critically endangered gharial, whose last major wild stronghold is the Chambal.

The India Meteorological Department (IMD), in its second-stage long-range forecast on 29 May 2026, lowered its 2026 Southwest Monsoon estimate to 90% of the Long Period Average (LPA), pushing the season into the "below normal" category amid a developing El Niño. This article explains the monsoon mechanism, the meaning of LPA and IMD's rainfall categories, how El Niño (ENSO) and the Indian Ocean Dipole (IOD) shape Indian rainfall, the impact on agriculture and inflation, and why ample reservoirs and foodgrain buffers offer a silver lining.

Western and Central Europe are in the grip of an extraordinary May heatwave, with the UK and France recording their highest-ever May temperatures and parts of Spain crossing 38°C — temperatures 10 to 15°C above seasonal norms. Driven by a "heat dome" trapping warm air, the event coincides with the rapid emergence of an El Niño phase in the equatorial Pacific, which the India Meteorological Department (IMD) has flagged as a key reason for cutting its 2026 Southwest Monsoon forecast to 90% of the Long Period Average — a "below normal" category. This article explains the science of heat domes, ENSO, Walker Circulation, the Indian Ocean Dipole, climate whiplash, IMD's heatwave criteria, and what a strong El Niño could mean for India's agriculture, inflation, and food security.

The Wildlife Institute of India (WII) has prepared a 10-year management plan for Delhi's only wildlife sanctuary — Asola Bhatti Wildlife Sanctuary in the Aravalli range — revealing that the invasive alien tree species Prosopis Juliflora (Vilayati Kikar) alone covers a staggering 63.48% of the sanctuary's landscape, posing a severe ecological threat. This article explains the WII management plan in detail, the invasive species crisis, the Aravalli–Delhi Ridge ecology, biological invasion impacts, India's legal framework on Invasive Alien Species under the Wildlife (Protection) Act and Convention on Biological Diversity, and the broader conservation challenges facing Delhi's last green lung.

While many parts of India are struggling with the LPG crisis caused by rising prices and supply issues due to the West Asia conflict, the small village of Ekauni in Chandauli district of Uttar Pradesh remains completely untouched. All 500 residents here cook using piped biogas produced from cow dung in a community plant set up in 2022. The story highlights how a simple, locally managed biogas system can provide reliable and cheap clean cooking fuel to rural families.

On March 28, 2026, the Rajasthan High Court issued an important order banning night safaris and the use of drones, spotlights, torch lights and similar devices in the Jawai Leopard Reserve in Pali district. The court acted on a Public Interest Litigation (PIL) filed by local resident Apoorva Agrawat. It directed the state government to ensure no wildlife spotting activities take place after 7 pm or before 6 am. The bench noted that unregulated tourism, especially at night, was causing serious disturbance and stress to leopards and other animals. This order aligns with similar restrictions already followed in places like Ranthambore National Park.