Concept:
Environmental protection became an international concern during the twentieth century. India actively participated in global environmental initiatives and subsequently enacted several environmental laws to fulfill its international obligations.
The constitutional authority for Parliament to enact laws implementing international treaties and conventions is contained in Article 253 of the Constitution of India.
Step 1: Understanding Article 253.
Article 253 provides that Parliament has the power to make laws for the whole or any part of India for implementing:
• International treaties,
• International agreements,
• International conventions,
• Decisions made at international conferences.
This power exists even if the subject matter ordinarily falls within the State List.
Step 2: Connection with environmental law.
In 1972, the United Nations Conference on the Human Environment was held at Stockholm.
India participated in this conference and accepted various commitments relating to environmental protection.
To implement these commitments, Parliament enacted environmental legislation, including:
• Water (Prevention and Control of Pollution) Act,
• Air (Prevention and Control of Pollution) Act, 1981,
• Other environmental regulations.
Step 3: Why Article 253 was necessary.
Environmental protection often involves matters falling partly within State subjects.
Ordinarily, Parliament may not legislate on exclusive State List matters.
However, Article 253 creates a constitutional exception and allows Parliament to enact such laws when implementing international obligations.
Step 4: Why the other options are incorrect.
* Article 252 relates to legislation for States by consent of State Legislatures.
* Article 233 concerns appointment of District Judges.
* Therefore, neither Article 252 nor Article 233 forms the primary basis of the Air Act.
The Air Act, 1981 derives its constitutional legitimacy primarily from Article 253, which empowers Parliament to implement international environmental commitments.