A layer of air, the atmosphere, surrounds the earthand extends far outward into space. ... People are also wroking locally -- planting trees, cutting down on car use and the use of electric appliances, protesting the spraying of pesticides, refusing to buy products containing CFCs, working to elect candidates who support pollution control -- believing that all these actions, together, can help to clear the air.
――青山学院大学 理工学部(2月14日実施)――94年