Article 21 and the Right to a Clean Environment

The right to a clean and healthy environment is a Fundamental Right in India, even though the Constitution does not use these exact words. The Supreme Court has read it into Article 21, which protects the right to life. The court's reasoning is simple: you cannot live a real life if the air you breathe, the water you drink and the land you live on are poisoned. So clean air, clean water and freedom from harmful pollution are part of the right to life.

Why does it exist?

Article 21 says: "No person shall be deprived of his life or personal liberty except according to procedure established by law." At first, courts read "life" narrowly as mere animal existence. Over time, especially after Maneka Gandhi v. Union of India (1978), the court said "life" means a life with dignity. Once life was read this way, it was natural to include health and a clean environment in it.

This gave citizens a powerful tool: they can go straight to the Supreme Court under Article 32, or to a High Court under Article 226, when pollution threatens their health.

Where did it come from? The constitutional base

• Stockholm Conference, 1972: The first big UN conference on the human environment pushed many countries, including India, to act.
• 42nd Amendment Act, 1976: Added two environment provisions to the Constitution.
• Article 48A (a Directive Principle): The State shall try to protect and improve the environment and to safeguard the forests and wildlife of the country.
• Article 51A(g) (a Fundamental Duty): Every citizen must protect and improve the natural environment, including forests, lakes, rivers and wildlife, and have compassion for living creatures.
• Article 47 (a Directive Principle) asks the State to improve public health.
• Article 253 lets Parliament make laws to carry out international agreements. Using this power, Parliament passed the Air (Prevention and Control of Pollution) Act, 1981 and the Environment (Protection) Act, 1986.

Directive Principles and Fundamental Duties cannot be enforced in court by themselves. The courts solved this by linking them with Article 21, which can be enforced.

How the courts built the right, case by case

• Rural Litigation and Entitlement Kendra v. State of Uttar Pradesh (1985): The court ordered the closure of harmful limestone quarries in the Dehradun valley. This was one of the first cases where the Supreme Court acted under Article 32 to protect the environment and ecological balance.
• M.C. Mehta v. Union of India (1987, Oleum gas leak case): After a gas leak from a factory in Delhi, the court created the rule of absolute liability. A company running a hazardous activity must pay for any harm it causes, with no excuses.
• Subhash Kumar v. State of Bihar (1991): The court said in clear words that the right to life under Article 21 includes the right to enjoy pollution-free water and air. A citizen can go to the Supreme Court under Article 32 to remove such pollution.
• Vellore Citizens Welfare Forum v. Union of India (1996): About tanneries polluting rivers in Tamil Nadu. The court accepted the precautionary principle and the polluter pays principle as part of Indian environmental law, and linked them to sustainable development.
• M.C. Mehta v. Kamal Nath (1997): The court adopted the public trust doctrine. Natural resources like rivers, forests and the seashore are held by the government in trust for the public, so it cannot hand them over for private use in a way that harms the public.
• In re Noise Pollution (2005): The court held that freedom from noise pollution is part of Article 21. It banned the bursting of sound-emitting firecrackers between 10 pm and 6 am.
• Arjun Gopal v. Union of India (2018): A case filed on behalf of children in Delhi. The court allowed only green crackers (less polluting ones), set short time windows for bursting them, and stopped online sales. It said that where the right to health under Article 21 clashes with religious freedom or trade, health must get priority.
• M.K. Ranjitsinh v. Union of India (2024): While protecting the Great Indian Bustard, the court recognised a right against the adverse effects of climate change, drawn from Articles 14 and 21.

The key principles, explained simply

• Precautionary principle: If an activity may cause serious harm, do not wait for full scientific proof before acting. And the person who wants to do the risky activity must prove it is safe. It is like not waiting for a fire to start before installing a fire alarm.
• Polluter pays principle: Whoever causes the pollution must pay for the damage, including the cost of cleaning up and restoring the environment, not just compensating victims.
• Sustainable development: Growth that meets today's needs without spoiling the ability of future generations to meet theirs.
• Public trust doctrine: The government is the trustee, not the owner, of nature. The public is the real owner.

India's position: how the right is enforced

• Courts: The Supreme Court often uses public interest litigation (PIL) and long-running cases (like the M.C. Mehta and Delhi air pollution cases) to issue directions, sometimes year after year.
• National Green Tribunal (NGT): Set up under the NGT Act, 2010 as a special court for environment cases. Section 20 of the Act tells the NGT to apply the principles of sustainable development, precaution and polluter pays.
• Regulators: The Central Pollution Control Board (CPCB) and State Pollution Control Boards enforce pollution laws. For Delhi and nearby areas, the Commission for Air Quality Management (CAQM) handles air pollution and runs the Graded Response Action Plan (GRAP).

Commonly confused concepts

• Article 21 vs Article 48A vs Article 51A(g): Article 21 is a Fundamental Right, enforceable in court. Article 48A is a Directive Principle for the State, not enforceable by itself. Article 51A(g) is a Fundamental Duty for citizens, also not enforceable by itself. Courts use 48A and 51A(g) to explain what Article 21 includes.
• Absolute liability vs strict liability: Strict liability (from an old English case) makes a person liable for harm from dangerous activities but allows some exceptions, such as an act of God. Absolute liability (India, 1987) allows no exceptions for hazardous industries.
• Precautionary principle vs polluter pays principle: Precaution is about preventing harm before it happens. Polluter pays is about who pays after harm happens.
• Right to environment vs right to health: They overlap but are not the same. The right to health is about people's bodies; the right to environment is about the air, water and land around them. Courts often use both together.

Issues, criticism and the way forward

• Weak enforcement: Courts pass detailed orders, but local enforcement is often poor. For example, banned firecrackers are still sold and burst. Judges themselves have warned against orders that cannot be enforced.
• Judicial overreach debate: Some critics say courts are doing the work of the government and regulators, such as fixing hours for bursting crackers. Supporters reply that courts step in only because the executive has failed to protect a Fundamental Right.
• Rights in conflict: The right to a clean environment can clash with religious freedom (Article 25), the right to trade (Article 19(1)(g)) and livelihoods. For example, much of India's firecracker industry is based in Sivakasi in Tamil Nadu and employs lakhs of workers.
• Seasonal, crisis-driven action: Action on Delhi's air often peaks only around Diwali and winter, instead of steady year-round control of all sources: vehicles, industry, dust, waste burning and stubble burning.
• Way forward: Experts suggest stronger regulators, year-round source-wise action plans, public awareness, cleaner alternatives that are affordable, and support for workers in polluting industries to shift to cleaner products.

Concepts to Know

• Fundamental Right: A basic right in Part III of the Constitution that a citizen can enforce directly in court.
• Directive Principle of State Policy (DPSP): Goals in Part IV of the Constitution that guide the government. Courts cannot directly force the government to follow them.
• Fundamental Duty: A duty of every citizen listed in Article 51A (Part IVA). It is a moral and civic duty, not directly enforceable in court.
• Public interest litigation (PIL): A case filed in court to protect the public's interest, not just the petitioner's own interest. Any public-spirited person can file it.
• Suo motu: Latin for "on its own motion". The court starts a case by itself, without anyone filing a petition.
• Particulate matter (PM2.5 and PM10): Tiny particles of dust and smoke in the air. PM2.5 particles are so small that they enter deep into the lungs and even the blood.