The growing alarm at man's abuse of nature is having a significant effect on scientists. Instead of burrowing in their narrow disciplines, many are showing ever broader concern for social problems. In Boston last week, the trend was clear at the annual meeting of the 122,000-member American Association for the Advancement of Science, which staged more than 40 symposiums on issues affecting the quality of life. Among the highlights:
∙ OVERPOPULATION. Biologist Barry Commoner, the Washington University eco-activist, warned that current projections of six to eight billion people on earth (twice as many as now) presage global catastrophe "probably within the next...
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