The world prospers with acts of sacrifice. An action is Yajna in proportion to its public utility. So are the sun, moon, stars, and clouds. They heal and rehabilitate. They turn toxic materials into whole and wholesome things.
Nature is a source of raw materials.
These natural resources are given not for selfish exploitation by one group or nation or generation of another, but to be shared by all creation. Hindus regard the earth as mother, deserving our reverence. If, as children, we do not take care of her, we diminish her ability to take care of us. Unfortunately, our scientific and industrial achievements are undermining the natural environment. The earth itself has now become an area of concern.