The document discusses environmental policy and air pollution acts. It begins by defining environmental policy as plans adopted by governments to rationally enact environmental laws. The objectives of environmental policy include encouraging productive harmony between humans and the environment, preventing environmental damage, and enriching understanding of ecological systems. In India, the constitution mentions protecting the environment in articles 38A and 51A. The history provided outlines early acts like the Bengal Smoke Nuisance Act of 1905 and more recent acts passed after 1970. The document specifically discusses The Air (Prevention & Control) Act of 1981 and its amendments for controlling air pollution.