Editorials and explainers on 13 November 2026 spotlighted two pressing environmental-governance dilemmas: acute post-Deepavali air pollution worsening respiratory health across Indian cities, and local Adi tribal protests in Arunachal Pradesh opposing NHPC's Siang Upper Multipurpose Project (SUMP). Both cases underscore the importance of scientific enforcement, transparent impact reviews, and community consent.
Key Facts
Editorial Summary (~150 words): Post-Deepavali spikes in PM2.5 and toxic aerosols highlight the persistent enforcement gap between judicial green-cracker directives and municipal/police implementation, compounding chronic respiratory illness. Simultaneously, in Arunachal Pradesh, the proposed Siang Upper Multipurpose Project (SUMP) by NHPC—designed as a strategic flood-cushioning and hydropower counterweight to upstream Chinese damming on the Yarlung Tsangpo—faces sustained opposition from the indigenous Adi community over displacement and ecological fragility. Together, both cases demonstrate that top-down environmental or strategic decisions fail without transparent impact assessments, community consent, and year-round institutional accountability. Strengthening pollution monitoring, incentivising clean-tech alternatives, and institutionalising Free, Prior, and Informed Consent (FPIC) with local communities offer a durable way forward.
Siang Upper Multipurpose Project (SUMP): Proposed by NHPC on the Siang River (mainstream Brahmaputra) in Arunachal Pradesh; Adi community protests demand transparent environmental and social impact assessments.
Air Pollution & Health: Deepavali fireworks combined with winter inversion trap fine particulate matter (PM2.5), elevating acute asthma, COPD, and cardiovascular risks.
GK Context
The Siang River enters: India from Tibet (where it is known as the Yarlung Tsangpo) through Arunachal Pradesh before becoming the Brahmaputra in Assam.
National Clean Air Programme: (NCAP), launched in 2019, targets a 40% reduction in particulate matter concentrations by 2025–26 across non-attainment cities.
Static GK
Air Quality Index (AQI) India: Tracks 8 pollutants (PM10, PM2.5, NO2, SO2, CO, O3, NH3, Pb) across 6 categories (Good to Severe).
NHPC Limited: India's premier hydropower PSU (headquartered in Faridabad, Haryana), established in 1975.
Mains Analytical Framework
GS Paper II & III Mapping: Environmental Impact Assessment (EIA), Tribal Rights (Fifth/Sixth Schedule & PESA/FPIC principles), Transboundary River Geopolitics, and Urban Air Quality Governance.
Test yourself
Mains Questions (1)
115 Marks250 Words
Strategic hydropower projects in the Eastern Himalayas often collide with local ecological and tribal concerns. Discuss with reference to the Siang Upper Multipurpose Project (SUMP).
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