Good Light and Bad

WISER prophets than we have proclaimed that the 1970's will be the decade when human ecology attains its rightful place in the hierarchy of medical sciences. Spurred by mounting concern about the long-term consequences of smog, food additives, water pollution and, most recently, noise, broad public support is becoming manifest for programs to explore the effects of environmental inputs on human health, and to limit the ability of individuals to modify the environment in which all of us live.Coinciding with this general growth of interest in environmental factors, recent years have also witnessed a striking increase in our knowledge . . .