The Supreme Court of India has issued a landmark directive requiring every national park and wildlife sanctuary across the country to maintain an eco-sensitive zone (ESZ) of at least one kilometer from its demarcated boundary. This order marks a significant shift in environmental governance, establishing a minimum threshold of protection to act as a "shock absorber" for fragile ecosystems that have faced increasing pressure from commercial exploitation and urban expansion. The bench, led by Justice L. Nageswara Rao and including Justices B.R. Gavai and Aniruddha Bose, emphasized that the state’s role is not merely to facilitate economic activity, but to act as a trustee of natural resources to ensure long-term sustainability.

Under the new mandate, no new permanent structures will be permitted within these eco-sensitive zones. Furthermore, the court has explicitly prohibited all mining activities within national parks and wildlife sanctuaries, reinforcing the rigorous protections mandated under the Environment (Protection) Act of 1986. For existing activities within these zones, the court directed the Principal Chief Conservator of Forests of each state and union territory to verify and report on current land use patterns within three months. This process involves a comprehensive assessment of existing structures, which may include the use of satellite imagery and drone photography to ensure accurate compliance.

The court’s decision is deeply rooted in the Public Trust Doctrine , a principle of constitutional law which holds that critical natural resources—such as forests, water bodies, and the air—must be safeguarded for the benefit of the general public. As the judgment articulates, "The role of the State cannot be confined to that of a facilitator or generator of economic activities for immediate upliftment of the fortunes of the State. The State also has to act as a trustee for the benefit of the general public in relation to the natural resources so that sustainable development can be achieved in the long term." This perspective underscores the court’s warning that ignoring such protection in favor of immediate economic gain risks irreversible climate consequences.

Balancing Development and Ecological Integrity

The directive addresses long-standing disputes, such as the devastation of the Jamua Ramgarh wildlife sanctuary in Rajasthan, which served as a focal point for the Central Empowered Committee’s (CEC) reports. In its findings, the CEC detailed a "horror story" of indiscriminate mining within sanctuary limits, noting that mining pits, scattered equipment, and debris had turned a vital catchment area into a "wildlife graveyard." Consequently, the court designated Jamua Ramgarh as a special case, mandating a 500-meter buffer for subsisting activities, while requiring that any new activities adhere to the uniform one-kilometer norm.

The "minimum" nature of this one-kilometer floor has triggered significant discourse regarding whether such buffers serve as a baseline or a ceiling. In regions like Kaziranga, legal debates have emerged over whether states may attempt to shrink wider protective zones down to this statutory threshold. The Supreme Court clarified that where an existing notification or statutory instrument prescribes a buffer wider than one kilometer, that broader margin must prevail. The one-kilometer rule is intended to provide a floor beneath which protection cannot fall, rather than a justification for lowering higher environmental standards.

Standardizing the Regulatory Framework

To streamline the governance of these buffer zones, the court integrated the Ministry of Environment, Forest and Climate Change's (MoEF&CC) 2011 guidelines. The ruling mandates that for any protected area where no specific ESZ proposal has been submitted, a 10-kilometer default buffer will be enforced. This default regime serves as an interim measure to prevent further degradation until site-specific proposals are formally processed and accepted. The court acknowledged the complexity of managing these zones in urban-adjacent areas, such as the Sanjay Gandhi National Park in Mumbai or the Guindy National Park in Chennai, signaling that special cases may require site-specific adjustments that still prioritize ecological stability.

The order also outlines a clear, albeit strict, process for any proposed dilution of these standards. Any request to reduce the width of an ESZ in the interest of the public must be routed through the CEC and the MoEF&CC, with both bodies required to provide expert opinions before the court will entertain a modification. This tiered process ensures that any departure from the baseline protection is subjected to rigorous scientific and public scrutiny. The court further directed the Principal Chief Conservator of Forests to take personal responsibility for the compliance of these guidelines within their respective jurisdictions, stressing that accountability is paramount to preventing the regularized violation of forest conservation laws.

As the litigation proceeds, the Supreme Court has requested that the Chief Justice of India consider consolidating the present writ petition with other ongoing cases related to environmental enforcement, such as those initiated by the Goa Foundation. This consolidation is aimed at ensuring a cohesive and uniform judicial approach across different states and territories. For now, the ruling stands as a stern warning that in any conflict between the protection of the environment and the pursuit of economic interests, the former must take precedence. The court remains in active oversight, awaiting further reports and remedial plans from the states as they transition toward this new, unified standard of ecological stewardship.