The purposes of Laws 1973, chapter 412, are:

1. (1) to declare a state policy that will encourage productive and enjoyable harmony between human beings and their environment;
2. (2) to promote efforts that will prevent or eliminate damage to the environment and biosphere and stimulate the health and welfare of human beings; and
3. (3) to enrich the understanding of the ecological systems and natural resources important to the state and to the nation.