Conservation, Pollution & EIA

India has updated vehicle rules to expressly include E100 in high-ethanol emission certification. The change supports certified flex-fuel vehicles and raises important questions about compatibility, energy security and sustainable ethanol production.

Chhattisgarh’s forest department is seeking expert assistance to save over 500 recently girdled trees in Udanti–Sitanadi Tiger Reserve through bridge grafting. The episode connects plant transport systems with habitat restoration, geospatial monitoring and the need to reconcile forest protection with legally recognised community rights. The proposed treatment is a rescue attempt; recovery has not been established. [1] [2]

The Kigali Amendment to the Montreal Protocol completes 10 years on 15 October 2026, drawing attention to the growing climate impact of refrigeration and air conditioning. The agreement requires countries to gradually reduce hydrofluorocarbons (HFCs), powerful greenhouse gases widely used in cooling equipment. India faces a major challenge as rising temperatures, urbanisation and incomes increase cooling demand. With India's HFC reduction commitments beginning in 2032, the issue highlights the importance of energy-efficient cooling, alternative refrigerants, climate finance and the India Cooling Action Plan for achieving sustainable development and climate goals.

The Union Ministry of Ports, Shipping and Waterways has proposed protection and tourism-development works around the Indira Point Lighthouse in Great Nicobar Island, India’s southernmost point. The project requires coastal-regulation approval because the proposed works fall in ecologically sensitive island coastal zones. It is important for UPSC because it links lighthouse tourism, coastal regulation, Great Nicobar’s strategic location, tsunami-induced land subsidence, maritime navigation and sustainable island development.

A newspaper report has highlighted growing concerns among motorists and automakers over India’s rapid shift to E20 fuel, especially regarding mileage loss, older vehicle compatibility, corrosion risk, lack of fuel choice at petrol pumps and the possible move towards higher ethanol blends such as E25, E85 and E100. The issue is important for UPSC because it links energy security, biofuel policy, automobile regulation, consumer protection, agriculture, emissions and India’s transition towards cleaner transport fuels.

The Directorate General of Lighthouses and Lightships (DGLL), through its Port Blair (Sri Vijaya Puram) directorate, has sought clearance from the Andaman and Nicobar Islands Coastal Zone Management Authority and the Environment Ministry to undertake protection and development work — including a convention centre and a museum — at Indira Point, India's southernmost point on Great Nicobar Island. The site falls in the highly protected ICRZ-IA and ICRZ-IVA categories, where most construction is prohibited. This article explains what Indira Point is, the Island Coastal Regulation Zone framework under the CRZ Notification, 2019, why the location is ecologically sensitive, and the conservation-versus-development questions the proposal raises.

The Zoological Survey of India has identified four sites on the west coast of Great Nicobar Island for translocating coral colonies and giant clams likely to be affected by the proposed Galathea Bay transshipment port under the Great Nicobar mega project. The development has revived UPSC-relevant questions on coral reef conservation, environmental clearance, ICRZ rules, Schedule-I species, tribal safeguards and the balance between strategic infrastructure and fragile island ecology.

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 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 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.

Israeli airstrikes on March 7-8, 2026, targeted oil storage facilities in Tehran and Alborz province, causing massive fires that released harmful pollutants into the air. This led to "black rain" falling over Tehran on March 8, a mix of rain and toxic particles that has raised serious health and environmental concerns, with the World Health Organization warning of long-term risks like respiratory issues and ecosystem damage.