Supreme Court says 10 km radius buffer for mining extends to all wetland reserves

This ruling significantly elevates the protection status of wetlands in India, aligning their buffer zone requirements with those of National Parks and Wildlife Sanctuaries. The Supreme Court of India based this expansion partly on the international importance of sites designated under the Ramsar Convention. Buffer zones, technically known as Eco-Sensitive Zones (ESZs), are crucial for mitigating the impact of human activities on fragile ecosystems, acting as a 'shock absorber'. Until now, the 10 km default ESZ (pending site-specific notification) was primarily associated with protected areas under the Wildlife Protection Act, 1972. By explicitly applying this to wetland conservation reserves, the Court acknowledges the unique vulnerability of these aquatic ecosystems to industrial activities like mining, which can cause severe hydrological disruptions and pollution. For UPSC Prelims, candidates must know that Asan Conservation Reserve was Uttarakhand's first Ramsar site and understand the criteria for Ramsar designation. Mains questions could focus on the evolving jurisprudence regarding ESZs and the challenges of balancing infrastructure development (like mining) with wetland conservation.

This case highlights the active role of the higher judiciary in environmental governance, often stepping in where executive frameworks are perceived as inadequate or inconsistently applied—a concept known as judicial activism. The Supreme Court of India's insistence on 'parity' across states ensures that environmental regulations are not fragmented by state boundaries, reinforcing a unified national approach to conservation. The conflict arose because environment and forests are in the Concurrent List (introduced by the 42nd Amendment), leading to friction between central directives and state-level economic interests (like mining revenue in Himachal Pradesh). The Court's directive mandates that any mining within this 10 km buffer requires clearance from the Standing Committee of the National Board for Wildlife (NBWL), a statutory body constituted under the Wildlife Protection Act, 1972 and chaired by the Prime Minister. This centralizes the clearance process for activities near sensitive zones, moving power away from state authorities. UPSC aspirants should be prepared to analyze the role of the NBWL in environmental clearances and the tension between state autonomy in resource management and national conservation mandates.

The ruling specifically addresses the ecological fragility of the Himalayan terrain, which the Chief Justice noted passes through both adjoining states (Uttarakhand and Himachal Pradesh). The Himalayas are a geologically young and unstable mountain range, highly susceptible to landslides and erosion, making them particularly vulnerable to extractive industries like mining. The Asan Conservation Reserve itself is located at the confluence of the Asan and Yamuna rivers, highlighting its importance in riverine ecology and as a habitat for migratory birds. The Court's assertion that 'The entire Himalayan terrain has to be governed by the same set of directions' underscores a landscape-level approach to conservation, rather than a piecemeal, state-by-state approach. This geographic continuity is vital because environmental impacts, such as river pollution or habitat fragmentation, do not respect political borders. For geography and environment sections, students should map major Ramsar sites in the Himalayan region and understand how localized mining can have downstream impacts on regional hydrology and biodiversity.