River-linking is not the solution
In the last 130-odd years, the country has seen only a handful of inter-basin transfer projects, most of which are in south India
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Context
The Union Home Minister's recent suggestion to resolve southern water disputes through massive river-linking projects, from the Brahmaputra to the Cauvery, has reignited the debate over inter-state water sharing. The editorial argues that supply-side interventions like river linking are complex, ecologically risky, and practically difficult, as evidenced by ongoing disputes over the Pennaiyar and Mekedatu projects, and advocates for demand-side management and water conservation instead.
UPSC Perspectives
Polity
The article highlights the persistent friction in cooperative federalism regarding water sharing, a subject primarily under the State List (Entry 17), subject to the Union List (Entry 56) regarding inter-state rivers. The mechanism for resolving these issues is the , enacted under of the Constitution. The editorial points out the systemic delays in this process, noting the Centre's hesitation to form tribunals for the Pennaiyar dispute (between Tamil Nadu and Karnataka) despite Supreme Court directives. The suggestion to club the Pennaiyar dispute with the Mahadayi tribunal is criticized as illogical and legally unsound under the 1956 Act, illustrating the political and administrative hurdles in implementing judicial or quasi-judicial verdicts in inter-state disputes. UPSC often tests the mechanisms of the , the role of , and the challenges in ensuring compliance with tribunal awards.
Environmental
The push for the Interlinking of Rivers (ILR) project, managed by the , raises profound ecological concerns. While proponents argue it merely diverts 'surplus' water to deficit regions, ecologists warn that altering natural river flow regimes can disrupt entire ecosystems. The editorial cites Kerala's opposition to the Pamba-Achankovil-Vaippar link, fearing the destruction of the Vembanad wetland system, a crucial Ramsar site. Furthermore, mega-projects like the involve significant deforestation, submergence of wildlife habitats (such as the Panna Tiger Reserve), and displacement of indigenous populations, leading to socio-environmental conflicts. For UPSC, understanding the ecological footprint of large dams, the concept of environmental flows (e-flows), and the environmental impact assessment (EIA) of inter-basin transfers is crucial.
Geographical
The fundamental argument of the editorial shifts the focus from supply-side management (finding more water) to demand-side management (using water efficiently). India's spatial and temporal variation in rainfall makes water management challenging, but the era of mega-irrigation projects is declining due to land acquisition difficulties and resistance. The article critiques policies that exacerbate water stress, such as free electricity for agriculture, which incentivizes the indiscriminate extraction of groundwater, leading to rapid aquifer depletion. A sustainable geographical approach requires a shift towards crop diversification (moving away from water-intensive crops in dry regions), micro-irrigation techniques, and watershed development. This connects to UPSC geography topics like water resource distribution, sustainable agriculture, and the hydrological cycle.