"s in some state parks; (3) the over spraying for mosquitoes; (4) the turning of fields, meadows and forest into great asphalt and concrete urban jungles; (5) the pollution of air, water and habitat with insecticides, herbicides, and other forms of toxic chemicals emitted during the burning of fossil fuels or other industrial processes; and (6) the deforestation of large areas by clear-cutting, and" . . . . .