SOURCE: "The Imparsible Dream?," in Bulletin of the Atomic Scientists, Vol. 47, No. 2, March, 1991, pp. 43-4.

In the following review, Robock offers praise for A Path Where No Man Thought.

Soon after the theory of nuclear winter was published, Carl Sagan gave a briefing on the subject on Capitol Hill. Sagan described how, after a nuclear war, the thick smoke from burning cities and industrial plants would block out so much sunlight that the earth's surface would become cold and dark. Agriculture would be impossible for years and most of the world's population would starve to death. After his presentation, one member of the audience called him aside. "Carl," he said, "if you think the mere threat of the end of the world is enough to change the way people in Washington and Moscow think, you clearly haven't spent enough time in either place."

Yet Sagan and coauthor Richard...