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Why Phasing Out Fossil Fuels Remains Elusive Syllabus: GS-2: Issues Relating to Development, Growth & Development, Renewable Energy, Environmental Pollution & Degradation Why in the News? The global debate on phasing out fossil fuels resurfaced after COP30 negotiations, where explicit phase-out commitments were avoided despite reaffirming the Paris Agreement goals. Divergences between developed and developing …
Read MoreSecondary Aerosols Deepen Delhi’s PM2.5 Crisis Why in the News? A recent Centre for Research on Energy and Clean Air (CREA analysis) reveals that nearly one-third of Delhi’s annual PM2.5 load comes from secondary aerosols, especially ammonium sulfate, highlighting the role of coal-based SO₂ emissions, atmospheric chemistry, and regional pollution in worsening winter smog. This …
Read MoreTHE URBAN FUTURE WITH CITIES AS DYNAMIC ECOSYSTEMS Why in the News? Urban development debates increasingly highlight that infrastructure-led growth alone is insufficient to create livable cities. Policy focus is shifting from hardware (roads, buildings, smart systems) to human-centric urban planning, including considerations for environmental impact assessments. Experts point to a growing disconnect between planned …
Read MoreRhino Dehorning Emerges As Effective Anti-Poaching Tool Why in the News? A recent Science journal study shows that rhino dehorning in African reserves led to a sharp decline in poaching, highlighting its effectiveness as a cost-efficient conservation strategy amid persistent illegal wildlife trade pressures. This approach aligns with the principles of environmental democracy and sustainable …
Read MoreRight to Healthy Environment and Constitutional Responsibility Why in the News? Amid worsening air pollution in Delhi-NCR, renewed debate has emerged on recognising the right to a healthy environment as an explicit fundamental right, building on judicial interpretations of Article 21 and strengthening the state’s constitutional responsibility for environmental protection. This debate includes discussions on …
Read MoreSupreme Court Strengthens Bustard Conservation Through Power Restrictions Why in the News? The Supreme Court expanded priority conservation areas for the Great Indian Bustard in Rajasthan and Gujarat, restricting new overhead power lines, wind turbines, and large solar projects to reduce bird fatalities from power infrastructure. This decision reflects the growing importance of environmental jurisprudence …
Read MoreKerala Leads India In Butterfly Diversity Western Ghats Why in the News? A new ENTOMON monograph confirms that Kerala hosts India’s highest butterfly diversity within the Western Ghats, documenting 328 species, high endemism, migratory corridors, and extensive host-plant relationships, strengthening the State’s biodiversity conservation significance. This study underscores the importance of environmental impact assessments and …
Read MoreGanga–Yamuna Water Diversion Plan Faces Major Hurdle Why in the News? The proposal to divert 500 cusecs of Ganga water into the Yamuna to improve river flow and reduce pollution has stalled, as the Uttar Pradesh government raised engineering, agricultural and farmers’ protest concerns, delaying Delhi’s long-promised Yamuna cleaning efforts. This delay highlights the complex …
Read MoreBioremediation: India’s Need for Sustainable Pollution Cleanup Why in the News ? India faces rising pollution from industrial effluents, untreated sewage, and toxic contaminants. Bioremediation, which uses microorganisms to naturally degrade pollutants, is gaining attention as a cost-effective, scalable, and eco-friendly solution. Recent government-backed projects and biotech innovations have renewed focus on this technology. Understanding …
Read MoreThis image illustrates the unidirectional flow of energy through an ecosystem, from sunlight to producers and various consumer levels, highlighting energy loss at each stage. It belongs to UPSC GS Paper 3 (Environment & Ecology), subject: Environment, an important topic for both prelims and mains.
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