The recent upsurge of public concern over environmental questions reflects a belated recognition that man has been too cavalier in his relations with nature. Unless we arrest the depredations that have been inflicted so carelessly on our natural systems-which exist in an intricate set of balances-we face the prospect of ecological disaster.

Public Papers of the Presidents of the United States: Richard M. Nixon, 1970: (ed. Best Books on, 1971) - ISBN: 9781623769154