The authors are married and together have two children. Dr. Sagan has three grown sons. In the 1980s he and Ms. Druyan organized three of the largest demonstrations of non-violent civil disobedience at the Nevada Nuclear Test Site in protest against continued U.S. nuclear weapons testing. Recently, they have been working to bring scientists and religious leaders together to help protect the global environment.
Carl Sagan, Shadows of Forgotten Ancestors
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