Pollution and Sustainability — UPSC Mains Model Answer

Indian agriculture consumes approximately 80% of total freshwater withdrawals, yet its contribution to GDP remains disproportionately low relative to this resource intensity. Flood irrigation practices, subsidised electricity for groundwater pumping, and crop patterns favouring water-intensive cereals like paddy perpetuate this inefficiency. The nexus challenge lies in reforming agricultural water use without undermining food security or farmer livelihoods.

Thermal power generation, which constitutes the bulk of India's electricity mix, requires significant freshwater for cooling. Simultaneously, groundwater extraction for irrigation depends heavily on electricity, creating a feedback loop where energy subsidies accelerate aquifer depletion. Policies addressing one sector in isolation risk exacerbating stress in the other.

Groundwater depletion represents the most acute convergence point of the WEF nexus — it simultaneously undermines irrigation capacity, reduces water availability for industrial cooling, and threatens drinking water security. The Atal Bhujal Yojana attempts community-level groundwater management, but implementation remains uneven across states.

Water, energy, and food are administered by separate ministries with misaligned incentive structures. Integrated basin-level planning, cross-sectoral data sharing, and unified resource pricing remain institutional gaps that prevent coherent nexus governance.