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International Environmental Treaties in Indian Law

Introduction​

International environmental treaties play a crucial role in shaping India's approach to environmental protection and sustainable development. These treaties set global standards and, once ratified, influence domestic legislation and judicial reasoning. Under Article 253 of the Constitution, Parliament may legislate to give effect to international agreements, and Article 51(c) directs the State to foster respect for international law and treaty obligations. Indian courts have repeatedly drawn on international environmental principles while interpreting domestic law. This chapter surveys some of the most significant treaties and how they operate within the Indian legal framework.

Key International Environmental Treaties​

1. Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)​

CITES regulates international trade in endangered species so that such trade does not threaten their survival. In India, its objectives are given effect largely through the Wildlife Protection Act, 1972, which prohibits or restricts trade and commerce in specified wild animals, animal articles and trophies. The Act designates a Management Authority and Scientific Authority to oversee permits for trade in listed species.

Application in India: Indian law and policy have imposed strict controls on trade in species such as tigers, elephants (including a ban on domestic and international trade in ivory) and other listed fauna and flora, reflecting CITES commitments. Enforcement is carried out by the Wildlife Crime Control Bureau and forest authorities.

2. United Nations Framework Convention on Climate Change (UNFCCC)​

The UNFCCC, adopted at the 1992 Rio Earth Summit, sets out a framework for the international response to climate change based on the principle of common but differentiated responsibilities. India signed the convention in 1992 and ratified it in 1993, and it later became party to the Kyoto Protocol and the Paris Agreement.

Domestic response: India's principal policy instrument for meeting these commitments is the National Action Plan on Climate Change (2008), which operates through a series of national missions covering solar energy, energy efficiency, sustainable habitat, water, the Himalayan ecosystem, afforestation, sustainable agriculture and strategic knowledge for climate change. States prepare corresponding State Action Plans.

Judicial note: In M.K. Ranjitsinh v Union of India the Supreme Court recognised that people have a right to be free from the adverse effects of climate change, locating this within the rights to life and equality under Articles 21 and 14. This illustrates how climate concerns are being read into constitutional protections rather than through a single dedicated statute.

3. Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal​

The Basel Convention regulates the transboundary movement of hazardous wastes and seeks to minimise their generation and ensure environmentally sound disposal, particularly discouraging their export from developed to developing countries. India is a party to the convention.

Domestic implementation: India gives effect to its Basel obligations through rules framed under the Environment (Protection) Act, 1986 governing the management and transboundary movement of hazardous and other wastes. These rules regulate the import, export, handling and disposal of hazardous wastes and require prior consent for movements across borders.

Case study: In Research Foundation for Science, Technology and Natural Resource Policy v Union of India, the Supreme Court dealt at length with the import and disposal of hazardous wastes, including ship-breaking, and issued directions to strengthen compliance with hazardous-waste controls consistent with Basel Convention principles.

4. Montreal Protocol on Substances That Deplete the Ozone Layer​

The Montreal Protocol, adopted under the Vienna Convention for the Protection of the Ozone Layer, requires parties to phase out the production and consumption of ozone-depleting substances such as chlorofluorocarbons (CFCs) and halons. India is a party to both the Vienna Convention and the Montreal Protocol and has committed to the accelerated phase-out schedules, including obligations concerning hydrochlorofluorocarbons (HCFCs) and, under the Kigali Amendment, hydrofluorocarbons (HFCs).

Domestic implementation: India regulates the production, trade and use of ozone-depleting substances through the Ozone Depleting Substances (Regulation and Control) Rules, made under the Environment (Protection) Act, 1986. These rules provide for registration of producers and users and phased restrictions in line with India's protocol commitments.

5. Stockholm Convention on Persistent Organic Pollutants (POPs)​

The Stockholm Convention aims to eliminate or restrict the production and use of persistent organic pollutants — chemicals that remain in the environment for long periods, accumulate in living organisms and pose risks to human health, including certain pesticides and industrial chemicals. India is a party to the convention.

Domestic implementation: India gives effect to its POPs obligations through regulation of hazardous chemicals under the framework of the Environment (Protection) Act, 1986, restricting or banning listed substances and managing their disposal. India has prepared a National Implementation Plan under the convention to phase out targeted chemicals.

Cross-Cutting Constitutional and Statutory Framework​

Several treaties are absorbed into Indian law through the same broad instruments rather than through separate statutes for each convention:

  • Article 253 empowers Parliament to make laws implementing international agreements.
  • Article 21 (right to life) has been interpreted to include the right to a clean and healthy environment.
  • The Environment (Protection) Act, 1986 is an umbrella legislation, enacted in the aftermath of the Bhopal disaster and the 1972 Stockholm Conference, under which most subordinate rules implementing treaty obligations are framed.
  • Judicially developed doctrines — the precautionary principle, the polluter pays principle and the public trust doctrine — reflect international environmental norms. For example, in Vellore Citizens' Welfare Forum v Union of India, the Supreme Court adopted the precautionary and polluter-pays principles as part of Indian environmental law while addressing pollution from tanneries.

Conclusion​

International environmental treaties have significantly shaped India's approach to environmental regulation and conservation, usually operating through umbrella legislation such as the Environment (Protection) Act, 1986 and the Wildlife Protection Act, 1972, and through constitutional interpretation of the right to life. For law students, understanding both the treaties and the domestic mechanisms that carry them into effect is essential for navigating environmental law.

Because environmental law evolves rapidly, always consult the latest statutory texts, rules and case law when applying these principles in practice.