The concept of Environment and Ecology is a foundational principle and a constitutional mandate in India, not merely a subject of study. Ecology is the scientific study of the interactions between living organisms and their surroundings, encompassing both biotic and abiotic components. The Environment is the sum total of all external conditions and influences that affect an organism.
The legal framework for this concept was formally established in 1976 with the 42nd Amendment to the Constitution, following India's participation in the 1972 UN Conference on the Human Environment in Stockholm. This amendment inserted Article 48A into the Directive Principles of State Policy, which mandates the State to protect and improve the environment and safeguard forests and wildlife. It also added Article 51A(g) as a Fundamental Duty, requiring every citizen to protect and improve the natural environment, including forests, lakes, rivers, and wildlife.
The primary legal instrument is the Environment (Protection) Act, 1986 (EPA), an umbrella legislation enacted after the 1984 Bhopal Gas Tragedy to provide the Central Government with comprehensive powers for environmental protection. The EPA's mechanism grants the Central Government wide authority under Section 3 to take all necessary measures to protect and improve the environment. This concept is intrinsically connected to the fundamental Right to Life under Article 21, which the judiciary has interpreted to include the right to a healthy and pollution-free environment. It also connects to other specific laws like the Water (Prevention and Control of Pollution) Act, 1974, and the Wildlife Protection Act, 1972. Judicial precedents, such as Vellore Citizens Welfare Forum v. Union of India (1996), established key principles like the Precautionary Principle and the Polluter Pays Principle.
The EPA, 1986, has recently undergone significant change through the Jan Vishwas (Amendment of Provisions) Act, 2023, which came into force on April 1, 2024. This amendment decriminalized certain violations by replacing the provision for imprisonment (previously up to five years under Section 15) with a monetary penalty ranging from ₹1 lakh to ₹15 lakh. The amendment also introduced a new Section 16 to create an Environment Protection Fund.