India’s framework for Environmental sustainability: Harmonizing Constitutional Mandates with G20 Sustainable Development Objectives
Abstract
India’s environmental legal architecture has evolved into a robust framework that seamlessly aligns with the G20 sustainable development objectives, particularly following the New Delhi Declaration of 2023. This comprehensive framework encompasses constitutional provisions, specialized judicial institutions, and legislative mechanisms that collectively advance environmental protection while supporting economic growth. The establishment of the National Green Tribunal and the recent constitutional recognition of climate rights demonstrate India’s commitment to environmental sustainability in harmony with global objectives.

Introduction
Environmental sustainability constitutes a fundamental pillar of the G20’s strategic objectives, as articulated in the New Delhi Declaration during India’s presidency in 2023 [1]. India’s presidency emphasized “Vasudhaiva Kutumbakam” – One Earth, One Family, One Future – which fundamentally highlighted the interconnectedness of all life forms and their environmental dependencies. The nation’s legal framework has evolved to address this interconnectedness through a multifaceted approach that integrates constitutional mandates, specialized judicial mechanisms, and legislative instruments designed to protect environmental integrity while promoting sustainable development.
The alignment between India’s domestic environmental policies and G20 sustainable development objectives reflects a deeper understanding of environmental challenges as global imperatives requiring coordinated legal responses. This framework has gained particular significance following the Supreme Court’s landmark recognition in 2024 of the constitutional right to be free from adverse effects of climate change, establishing India as a leader in climate jurisprudence.
Constitutional Foundation for Environmental Protection
Article 48A: State’s Environmental Mandate
The constitutional foundation of India’s environmental protection regime rests primarily on Article 48A, introduced through the Constitution (Forty-second Amendment) Act, 1976 [2]. This provision, enshrined within the Directive Principles of State Policy, explicitly mandates that “The State shall endeavour to protect and improve the environment and to safeguard the forests and wildlife of the country.” This constitutional directive establishes environmental protection as a fundamental state obligation, creating the legal foundation for comprehensive environmental governance.
Article 48A emerged from India’s participation in the Stockholm Conference of 1972, reflecting the nation’s early recognition of environmental challenges as matters of constitutional importance. The provision operates as a guiding principle for legislative and executive action, ensuring that environmental considerations are integrated into all aspects of governance and policy formulation.
Article 51A(g): Fundamental Duty of Citizens
Complementing the state’s obligations, Article 51A(g), also introduced through the 42nd Amendment, establishes environmental protection as a fundamental duty of every citizen. The provision states: “It shall be the duty of every citizen of India to protect and improve the natural environment including forests, lakes, rivers and wildlife and to have compassion for living creatures” [2]. This creates a unique constitutional framework where both state and citizens bear responsibility for environmental stewardship.
The dual responsibility model established by Articles 48A and 51A(g) creates a participatory framework for environmental governance, enabling both top-down regulatory approaches and bottom-up citizen engagement. This constitutional architecture has proven instrumental in supporting India’s commitments under various G20 initiatives, particularly those related to sustainable consumption and production patterns.
Constitutional Climate Rights: The M.K. Ranjitsinh Landmark
In March 2024, the Supreme Court of India delivered a watershed judgment in M.K. Ranjitsinh and Others v. Union of India and Others [3], establishing the constitutional right to be free from adverse effects of climate change. The Court held that this right flows from Article 21 (right to life and personal liberty) and Article 14 (right to equality), recognizing that climate change disproportionately affects vulnerable communities.
The Court observed that “without a clean environment which is stable and unimpacted by the vagaries of climate change, the right to life is not fully realised” [3]. This recognition places India among the progressive jurisdictions worldwide that have constitutionally acknowledged climate rights, strengthening the legal foundation for climate action and aligning with G20 commitments on climate resilience.
The National Green Tribunal: Institutional Innovation in Environmental Justice
Establishment and Constitutional Basis
The National Green Tribunal (NGT) represents India’s most significant institutional innovation in environmental governance, established under the National Green Tribunal Act, 2010 [4]. Drawing inspiration from Article 21 of the Constitution, the NGT was created to provide “effective and expeditious disposal of cases relating to environmental protection and conservation of forests and other natural resources including enforcement of any legal right relating to environment.”
With its establishment, India became the third country globally, after Australia and New Zealand, to create a specialized environmental tribunal, demonstrating its commitment to environmental justice. The NGT operates with five regional benches located in New Delhi (Principal), Pune, Bhopal, Chennai, and Kolkata, ensuring geographic accessibility across the nation.
Jurisdictional Framework and Legal Authority
The NGT’s jurisdiction encompasses civil cases involving substantial environmental questions under seven key environmental statutes. These include the Water (Prevention and Control of Pollution) Act, 1974; Air (Prevention and Control of Pollution) Act, 1981; Environment (Protection) Act, 1986; Forest (Conservation) Act, 1980; Public Liability Insurance Act, 1991; and Biological Diversity Act, 2002 [4].
The Tribunal operates under principles of natural justice rather than the rigid procedures of the Code of Civil Procedure, 1908, enabling flexible and contextual approaches to environmental disputes. This procedural innovation allows the NGT to address complex environmental challenges that often require interdisciplinary expertise and rapid intervention.
Environmental Impact Assessment Oversight
The NGT plays a crucial role in ensuring strict adherence to Environmental Impact Assessment (EIA) processes, thereby preventing activities detrimental to environmental integrity. This oversight function aligns directly with G20 objectives on sustainable development, ensuring that economic development projects undergo rigorous environmental scrutiny before implementation.
The Tribunal’s approach to EIA oversight reflects the precautionary principle, requiring project proponents to demonstrate environmental compatibility before receiving clearances. This mechanism has proven effective in balancing development aspirations with environmental protection, supporting India’s transition to sustainable development pathways.
Legislative Framework: The Environment Protection Act, 1986
Genesis and Scope
The Environment (Protection) Act, 1986, serves as India’s umbrella environmental legislation, enacted in response to the Bhopal Gas Tragedy and international commitments made at the Stockholm Conference [5]. The Act empowers the Central Government to coordinate environmental protection activities and establish regulatory standards across various environmental media.
The Act’s comprehensive scope encompasses air, water, and land environments, along with their inter-relationships with human beings, other living creatures, plants, and property. This holistic definition aligns with contemporary understanding of environmental systems as interconnected networks requiring integrated management approaches.
Regulatory Powers and Implementation
Under the Environment (Protection) Act, the Central Government possesses extensive powers to regulate environmental quality, including setting emission standards, restricting industrial locations, and coordinating nationwide environmental programs. These powers enable rapid response to environmental challenges and support India’s commitments under various G20 initiatives on pollution control and resource efficiency.
The Act provides for establishment of environmental authorities with powers to issue direct orders, including closure orders for non-compliant industries. This regulatory framework has proven instrumental in addressing transboundary pollution issues and supporting regional environmental cooperation consistent with G20 principles.
Alignment with G20 Environmental Objectives
Climate Action and Paris Agreement Implementation
India’s legal framework strongly supports implementation of the Paris Agreement, a key G20 priority. The country ratified the Agreement and submitted Nationally Determined Contributions (NDCs) committing to reduce greenhouse gas emission intensity by 33-35% by 2030 compared to 2005 levels [1]. The constitutional recognition of climate rights provides additional legal foundation for climate action, while the NGT serves as an enforcement mechanism for climate-related environmental standards.
The National Action Plan on Climate Change (NAPCC), launched in 2008, provides the policy framework for climate action through eight national missions covering solar energy, energy efficiency, sustainable agriculture, and water resources. This comprehensive approach demonstrates India’s commitment to low-carbon development while maintaining economic growth trajectories.
Circular Economy and Resource Efficiency
India’s environmental legal framework supports G20 objectives on resource efficiency and circular economy through various regulatory mechanisms. The Environment (Protection) Act enables establishment of standards for waste management and resource utilization, while the NGT provides judicial oversight for implementation of circular economy principles.
Recent developments include Extended Producer Responsibility rules and comprehensive waste management frameworks that align with G20 commitments on sustainable consumption and production. These regulations create legal obligations for businesses to adopt circular economy practices, supporting the transition to sustainable economic models.
Biodiversity Conservation and Ecosystem Protection
The Biological Diversity Act, 2002, which falls under NGT jurisdiction, implements India’s commitments under the Convention on Biological Diversity, strongly supported by G20 nations. The Act regulates access to biological resources and ensures equitable benefit-sharing, supporting the Kunming-Montreal Global Biodiversity Framework adopted at CBD COP-15.
The constitutional mandate for forest and wildlife protection under Article 48A provides strong foundation for biodiversity conservation, while the NGT ensures effective enforcement of biodiversity protection measures. This framework supports G20 objectives on halting biodiversity loss and ecosystem restoration.
Case Law and Judicial Interpretation
Landmark Environmental Decisions
Indian courts have developed robust environmental jurisprudence through landmark decisions that strengthen the constitutional framework for environmental protection. The Supreme Court has consistently interpreted the right to life under Article 21 to include the right to a pollution-free environment, establishing strong precedential foundation for environmental protection.
Key decisions have addressed issues ranging from industrial pollution to deforestation, establishing principles such as the polluter pays principle, precautionary principle, and sustainable development doctrine. These judicial innovations have strengthened India’s environmental governance framework and supported implementation of G20 environmental commitments.
Climate Change Jurisprudence
The M.K. Ranjitsinh judgment represents the culmination of evolving climate change jurisprudence in India. The decision balances renewable energy development with biodiversity conservation, reflecting the complex environmental trade-offs inherent in sustainable development transitions. This approach aligns with G20 recognition that environmental protection and economic development must be pursued simultaneously rather than as competing objectives.
Challenges and Future Directions
Implementation and Enforcement
Despite the robust legal framework, implementation challenges persist in India’s environmental governance system. These include capacity constraints in regulatory agencies, delays in environmental clearances, and coordination challenges between different levels of government. Addressing these challenges remains crucial for achieving G20 environmental objectives.
The NGT’s mandate to dispose of cases within six months provides a mechanism for addressing implementation delays, while its specialized expertise enables more effective handling of complex environmental disputes. Continued strengthening of this institutional framework will be essential for meeting evolving environmental challenges.
Emerging Environmental Challenges
Climate change, plastic pollution, and urban environmental degradation present evolving challenges that require adaptive legal responses. India’s environmental framework demonstrates flexibility in addressing these challenges through new regulations and institutional innovations, supporting G20 commitments on emerging environmental issues.
The constitutional recognition of climate rights provides a foundation for addressing climate challenges through legal mechanisms, while the NGT’s broad jurisdiction enables responsive approaches to new environmental threats.
Conclusion
India’s environmental legal framework represents a sophisticated integration of constitutional mandates, specialized institutions, and legislative mechanisms that effectively align with G20 sustainable development objectives. The framework’s evolution from basic pollution control to comprehensive environmental governance, culminating in constitutional recognition of climate rights, demonstrates India’s leadership in environmental law and policy.
The National Green Tribunal stands as a unique institutional innovation that provides accessible and expert environmental justice, while the constitutional framework ensures that environmental protection remains a fundamental state and citizen obligation. This alignment between domestic legal architecture and international environmental commitments positions India as a key contributor to global environmental governance.
The framework’s continued evolution, particularly through judicial interpretation and institutional innovation, ensures that India remains well-positioned to address emerging environmental challenges while supporting sustainable development objectives shared by G20 nations. The integration of environmental protection with economic development through legal mechanisms provides a model for other developing nations seeking to balance growth with environmental sustainability.
As global environmental challenges intensify, India’s legal framework offers valuable lessons for constitutional environmental protection, specialized environmental adjudication, and the integration of environmental considerations into broader development planning. The framework’s alignment with G20 sustainable development objectives demonstrates that domestic environmental law can effectively support international environmental cooperation while addressing national development priorities.
References
[1] Ministry of Earth Sciences, Government of India. “Overview of G20.” Available at: https://moes.gov.in/g20-india-2023/moes-g20?language_content_entity=en
[2] Constitution of India. “Article 48A: Protection and improvement of environment and safeguarding of forests and wild life.” Available at: https://www.constitutionofindia.net/articles/article-48a-protection-and-improvement-of-environment-and-safeguarding-of-forests-and-wild-life/
[3] Supreme Court of India. “M.K. Ranjitsinh and Others v. Union of India and Others.” 2024 INSC 280. Available at: https://climatecasechart.com/non-us-case/mk-ranjitsinh-ors-v-union-of-india-ors/
[4] National Green Tribunal Act, 2010.
[5] Environment (Protection) Act, 1986.
[6] Chambers and Partners. “Environmental Law 2024 – India.” Available at: https://practiceguides.chambers.com/practice-guides/environmental-law-2024/india/trends-and-developments
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