Hugh Downs, former host of NBC’s "Today" show, interviewed Walter Orr Roberts in 1972 for the film “Survival of Spaceship Earth.” Produced as the official film of the 1972 United Nations Conference on the Human Environment, the film presented issues of environmental concern and featured interviews with noted environmental spokespeople. About a third of the film was shot at the Mesa Laboratory. For more information: http://n2t.net/ark:/85065/d7jm28bv
