"Starting about the late 1960s there have been increasing fears that economic growth would soon lead to the exhaustion of raw materials and, food supplies, or environmental damage of one kind or another. These fears have been accompanied by widespread appeal to the concept of sustainable...

Although, in the course of development some features of the environment in developing countries may get worse, in the longer run they will be able to reverse trends in more common forms of air pollution and to attain levels of water supply and sanitation essential to an acceptable, healthy...