Sustainable Development

Sustainable development means meeting present needs without compromising the ability of future generations to meet their needs. When economic activity threatens ecology, it requires integration of environmental concerns into development decisions, guided by intergenerational equity rather than treating protection as an afterthought.

Constitutional and judicial basis

Indian environmental jurisprudence connects sustainable development with the right to life and constitutional responsibilities.

• The Supreme Court has interpreted Article 21 to include the right to pollution-free water and air.
• Articles 48A and 51A(g) place environmental duties on the State and citizens respectively.
• In Vellore Citizens Welfare Forum v. Union of India (1996), the Supreme Court treated the precautionary and polluter pays principles as essential features of sustainable development.

Principles governing the balance

Sustainable development does not prohibit development, but requires ecological costs to be internalised and environmental limits to shape its nature, location and scale.

• The precautionary principle requires preventive action where serious environmental harm is likely; scientific uncertainty cannot justify inaction, and the proponent must demonstrate environmental safety.
• The polluter pays principle makes the polluter bear the costs of preventing harm, compensating victims and restoring the damaged environment.
• Intergenerational equity requires natural resources and ecological systems to be conserved so that present consumption does not unfairly burden future generations.

Requirements for public decision-making

Authorities must use a reasoned, science-based and transparent process instead of assuming that every project automatically serves the public interest.

• Where legally required, an environmental impact assessment should examine alternatives, likely impacts and mitigation before approval.
• Assessment should consider cumulative effects and carrying capacity, not merely the isolated impact of one project.
• Approval must include enforceable safeguards, monitoring and restoration; a project should be redesigned, relocated or refused where unacceptable or irreversible harm cannot be prevented.