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Why Every Tiger Carcass Needs an Autopsy

Background Relevance : GS 3(Environment and Ecology) , GS 2(Governance) Why Autopsy (Postmortem) is Necessary Procedure after Discovery Challenges Significance for Conservation Way Forward

Saltwater Crocodile Population Recovery in Sundarbans

Basic Context Relevance : GS 3(Environment and Ecology) Population Assessment Results (2025) Direct Sighting Data Dramatic Year-over-Year Growth (2024 vs 2025) Category 2024 2025 Increase Adults 71 125 76% Juveniles 41 88 115% Hatchlings 2 23 1,050% Total 114 236 107% Key Significance Survey Methodology Conservation History and Success Factors Bhagabatpur Crocodile Project (1976-Present) Long-term Impact […]

Ethanol Blending in Petrol

Context and Policy Goals Relevance : GS 3(Environment and Ecology , Science and Technology) Scientific Basis of Ethanol Energy Efficiency of Ethanol vs Petrol Vehicle Impact – Scientific Concerns Environmental & Emission Effects Maintenance and Cost Concerns International Experience Science-Driven Challenges for India Scientific Verdict Way Forward

Biodiversity everywhere is ordered by a common ‘hidden’ pattern

Basics & Context Relevance : GS 3(Environment and Ecology) The Study: Methods Key Findings: The Onion Model Scientific Significance Conservation Implications Indian Context Critiques & Limitations Way Forward Conclusion The “onion model” of biodiversity transforms our understanding of how life is organised across Earth’s regions. It reveals that biodiversity cores hold the densest, most unique life forms, […]

Grasslands in Flux – Dibru-Saikhowa National Park

Basics – Location and Background Relevance : GS 3(Environment and Ecology) Ecological Features Biodiversity Significance Grasslands in Flux – Core Issue Human and Livelihood Context Conservation Challenges Ecological Importance of Grasslands in DSNP Policy and Legal Framework Way Forward – Management Strategies

Ethanol Blending in India

Concept and Context Relevance : GS 3(Environment and Ecology) , GS 2(Governance) Economic Impact Environmental Impact Consumer Impact Geopolitical & Trade Dimensions Energy Transition Angle Unresolved Questions Summary of Impacts

Many reject plastics treaty draft that omits curbs on production

Background of the Treaty Relevance : GS 3(Environment and Ecology) The Chair’s Draft Text (Controversial Version) Positions of Different Stakeholders Key Arguments from Both Sides Geopolitical & Economic Dimensions Reactions at Geneva Broader Implications Way Forward