Climate Change Litigation in India: Emerging Trends and Legal Strategies

Introduction

Climate change is no longer a distant threat; it is a present and growing crisis affecting every corner of the globe. In India, one of the most climate-vulnerable countries, the urgency to address environmental degradation and climate inaction has led to the rise of climate change litigation. While environmental jurisprudence has a long-standing history in India, climate-specific legal action is emerging as a dynamic and evolving field. Climate change litigation in India is emerging as a significant tool for environmental governance and accountability. As the impacts of climate change become increasingly evident—ranging from extreme weather events to rising sea levels—citizens, activists, and organisations are turning to the judiciary to push for stronger climate action and enforcement of environmental laws. Indian courts, particularly the National Green Tribunal (NGT), have been instrumental in addressing climate-related issues, interpreting constitutional rights in the context of environmental protection, and holding both public and private actors accountable. This evolving area of law reflects a growing recognition of the judiciary’s role in combating climate change and safeguarding sustainable development for future generations

Understanding Climate Litigation

Climate litigation refers to the use of judicial processes to address issues related to climate change and environmental degradation. It includes lawsuits aimed at:

• Enforcing existing environmental laws and regulations.
• Challenging inadequate or regressive government policies.
• Holding corporations accountable for their contribution to climate change and environmental damage.
• Advocating for stronger climate actions in line with global commitments like the Paris Agreement.

In India, the constitutional guarantee of the right to life under Article 21 has been judicially expanded to encompass the right to a clean and healthy environment[1]. This foundation has spurred the judiciary to play a crucial role in balancing development with environmental sustainability.

Concept and Scope of Climate Change Litigation in India

Climate litigation in India encompasses a broad range of disputes, including cases addressing greenhouse gas emissions, environmental clearances with climate implications, biodiversity and ecosystem protection, climate adaptation and disaster management, and enforcement of international commitments. Unlike in Western jurisdictions, Indian climate litigation is often indirect—embedded within broader environmental disputes rather than explicitly labelled as “climate cases.” Its scope extends across constitutional law (Articles 14 and 21)[2]. environmental statutes (the Environment Protection Act, the Air Act, and the Water Act), and international law principles (the Paris Agreement and the Rio Declaration)[3]

Key Drivers of Climate Litigation in India:

Several factors contribute to the rise of climate litigation in India:

(a)Escalating Environmental Crises: From record-breaking heatwaves to devastating floods, the frequency and intensity of climate events are pushing individuals and communities to seek legal remedies for damages and preventive actions.

(b)Public Awareness and Activism: Increased public awareness about climate issues has led to greater engagement with legal processes. Civil society organisations and grassroots movements are at the forefront of climate litigation, amplifying the voices of vulnerable populations.

(c)Judicial Activism: Indian courts, particularly the Supreme Court and the National Green Tribunal (NGT), have shown an unwavering commitment to upholding environmental justice through progressive interpretations of environmental laws.

(d)International Climate Commitments: India’s obligations under international treaties like the United Nations Framework Convention on Climate Change (UNFCCC) and the Paris Agreement have indirectly influenced climate litigation, as courts push governments and industries to align with these commitments.[4]

Emerging Trends in Climate Change Litigation

1) Climate Conscious Public Interest Litigations (PILs): Public Interest Litigations remain the most accessible legal tool for environmental justice in India. Recently, litigants have begun framing climate change not just as an environmental concern but as a violation of fundamental rights under the constitution. These PILs seek to hold the state accountable for failing to mitigate emissions, adapt to climate impacts, or enforce environmental laws.

2) Youth-led and Intergenerational Equity claims: Inspired by global movements, young Indians are beginning to approach courts, arguing that government inaction on climate change violates their right to life and threatens the rights of future generations. These cases invoke the principle of intergenerational equity, a concept well-established in Indian environmental jurisprudence.

3) Judicial Recognition of a Climate Science: Courts are becoming increasingly receptive to scientific data in climate cases. Petitioners are using climate models, reports from the Intergovernmental Panel on Climate Change (IPCC), and localised data to demonstrate state negligence and demand climate – responsive governance.

4)Linking Climate Risk to corporate Accountability: With the introduction of ESG (Environmental, Social, and Governance) norms and SEBI mandates, there is growing attention on how corporations disclose and manage climate-related financial risks. Strategic litigation is beginning to target high-emitting industries for their role in exacerbating climate change and failing to adopt clean transitions.

5) Regional and Community-Based Litigation: Litigants are now localising climate impacts whether it’s sea-level rise in Coastal States like Kerala, glacier retreat in Uttarakhand, or urban heatwaves in Delhi.The intense heatwaves in Delhi serve to highlight the direct and significant impact of climate change on specific populations

Challenges in Climate Change  Litigation:

While the Indian judiciary has been active in pushing forward climate law, several challenges continue to hinder the effectiveness of climate change litigation.

(a) Enforcement Gaps: Judicial orders, even when progressive, often experience weak or delayed enforcement. Despite numerous directives from the NGT and the Supreme Court regarding air pollution in Delhi, compliance has been inconsistent due to bureaucratic delays and overlaps between central and state authorities.

(b) Absence of Specific Climate Legislation: India does not have a comprehensive legal framework specifically for climate change. Existing laws, like the Environment (Protection) Act of 1986, and the Air and Water Acts address pollution but do not directly manage greenhouse gas emissions or climate adaptation measures. This legal gap forces courts to stretch constitutional principles, which raises concerns about judicial overreach.

(c) Development versus Environment Dilemma: India’s drive for rapid economic growth often conflicts with ecological sustainability. Infrastructure projects, mining, and energy expansion—especially coal—remain contentious issues as courts struggle to balance development needs and long-term climate responsibilities.

(d) Limited Awareness and Access to Justice: Climate harms disproportionately affect marginalised communities, such as farmers, fisherfolk, and indigenous groups. However, these communities often face financial and procedural obstacles when trying to access courts, leading many climate cases to be entered in urban, NGO-led settings.

Constitutional Framework and Climate Jurisprudence

• Article 21 and the Right to Life: Article 21, which guarantees the right to life, is the foundation of climate litigation in India. The Supreme Court has extended this provision to encompass the right to a clean and healthy environment. In a landmark decision, the Court ruled that protection from the adverse effects of climate change is a fundamental right derived from Articles 21 and 14 of the Constitution. This recognition transforms climate concerns into enforceable legal rights and elevates climate protection from a matter of policy discretion to a justiciable constitutional obligation.
• Directive Principles and Fundamental Duties :Article 48A imposes a duty on the State to protect and improve the environment, while Article 51A(g) requires citizens to safeguard nature. Though these provisions are not directly enforceable as fundamental rights, courts have consistently relied upon them to interpret and reinforce constitutional environmental protections. They serve as important normative anchors in climate-related judicial reasoning.

Role of the Judiciary in Climate Change Litigation

Supreme Court of India

The Supreme Court of India has played a transformative and pioneering role in shaping climate change litigation, even in the absence of a dedicated climate statute. Its most significant contribution lies in expanding the scope of constitutional rights and embedding environmental protection within the framework of fundamental rights.

Through a series of landmark decisions, the Court has held that the right to life under Article 21 includes the right to a clean, healthy, and pollution-free environment. This expansive interpretation has enabled litigants to bring climate-related concerns within the ambit of fundamental rights, even though climate change is not explicitly mentioned in the Constitution.

The Court has increasingly linked climate change to fundamental rights under both Article 14 (Right to Equality) and Article 21. Climate impacts such as rising temperatures, extreme weather events, and ecological imbalance are treated as direct threats to human life and dignity. By framing climate change as a constitutional issue, the Court has elevated it from a policy concern to a matter of legal enforceability.

National Green Tribunal (NGT)

The National Green Tribunal (NGT), established under the National Green Tribunal Act, 2010, represents a significant institutional development in India’s environmental and climate governance framework. Created to provide a specialised forum for the effective and expeditious disposal of environmental cases, the NGT combines judicial authority with technical expertise, making it particularly well-suited to adjudicate complex environmental and climate-related disputes.

The Tribunal primarily deals with matters concerning environmental clearances for large infrastructure and industrial projects, pollution control involving air, water, and soil contamination, and ecological damage including deforestation, biodiversity loss, and climate-linked environmental degradation. Although the NGT does not exclusively hear “climate change cases,” many disputes brought before it carry direct or indirect climate implications—cases challenging deforestation or industrial emissions, for instance, contribute to climate mitigation by constraining greenhouse gas outputs.

Judicial Precedents and  Case  Studies :

Judicial precedents have significantly influenced climate change litigation in India. Many cases occurred before the explicit recognition of climate rights, but they paved the way for today’s judicial focus on climate governance.

(a) M.C. Mehta v. Union of India: The Oleum Gas Leak case introduced the concept of absolute liability for hazardous industries, moving away from the stricter English liability doctrine. It also presented the precautionary principle, which calls for preventive measures against environmental risks. While not directly focused on climate, these principles are now key in climate litigation, especially for cases involving greenhouse gas emissions[5].

(b) Vellore Citizens Welfare Forum v. Union of India: The Supreme Court recognised sustainable development and intergenerational equity as essential to Indian law. The Court balanced economic activity with ecological protection, stating that development should not harm the rights of future generations. These principles are fundamental in climate litigation, weighing long-term ecological stability against short-term economic gains[6].

(c) T.N. Godavarman Thirumulpad v. Union of India: Initial concerns about forest conservation led this case to crucial proceedings that redefined forest governance in India. The Court’s broad orders on afforestation, biodiversity protection, and forest regulation have direct implications for climate resilience, as forests serve as important carbon sinks[7].

(d) M.K. v. Union of India: This case focused on protecting the Great Indian Bustard, an endangered species threatened by high-tension power lines. The Court ordered that power cables be buried in sensitive areas of Rajasthan and Gujarat. This judgment reflects a holistic view of biodiversity and climate change, stressing the importance of conserving ecosystems for climate resilience[8].

(e) State of Himachal Pradesh v. Ganesh Wood Products: The Supreme Court revoked licenses for wood-based industries to prevent deforestation, emphasising sustainable forest use and ecological conservation[9].

Future of Climate Litigation in India

Climate litigation in India is expected to grow in volume and sophistication in the coming years, driven by increased climate awareness, judicial recognition of climate rights, sustained international pressure, and growing civil society activism. Future developments may include the enactment of dedicated climate legislation, stronger enforcement mechanisms for judicial and regulatory orders, and increased scrutiny of corporate climate responsibility. The trajectory of Indian climate jurisprudence suggests a continued deepening of the rights-based approach, with courts playing an ever more central role in holding both public authorities and private actors accountable for climate governance.

Conclusion

Climate change litigation in India is a dynamic and rapidly evolving field. The judiciary has significantly shaped climate governance through constitutional interpretation and the application of environmental principles, achieving this in the absence of a specialised climate statute. The Supreme Court’s recognition of climate protection as a fundamental right marks a significant milestone, opening new avenues for legal intervention and accountability. However, challenges—including enforcement gaps, legislative deficits, and the difficulty of establishing causation—remain substantial. Ultimately, climate litigation in India reflects a broader shift towards rights-based environmental governance, in which courts serve as key agents in addressing one of the most pressing challenges of the twenty-first century.

References

[1]India constitution Article 21.

[2] INDIA CONST. arts. 14, 21.

[3]Environment (Protection) Act, No. 29 of 1986, INDIA CODE (1986).

[4] Paris Agreement, Dec. 12, 2015.

[5] M.C. Mehta v. Union of India, (1987) 1 SCC 395.

[6] Vellore Citizens Welfare Forum v. Union of India, (1996) 5 SCC 647

[7] T.N. Godavarman Thirumulpad v. Union of India, (1997) 2 SCC 267.

[8] M.K. Ranjitsinh v. Union of India, 2024 SCC OnLine SC 1137.

[9]State of Himachal Pradesh v. Ganesh Wood Products, (1995) 6 SCC 363.