Robert Cahn; Pulitzer Prize-Winning Reporter

Robert Cahn, 80, who earned a Pulitzer Prize for writing about the dangers of excessive use at national parks. A dedicated environmentalist, Cahn earned the prize for national reporting in 1968 for his series in the Christian Science Monitor titled “Will Success Spoil the National Parks?” Traveling to 20 parks, he was the first to identify the concern about overuse that still shapes park development. He served three years on President Richard Nixon’s Council on Environmental Quality and wrote several books, including “Footprints on the Planet: A Search for an Environmental Ethic.” Cahn’s articles appeared in such publications as Life, Collier’s and the Saturday Evening Post, and he had recently taught an environmental course at the University of Colorado. On Oct. 24 in Boulder, Colo.