The prevailing view among environmentalists is that if the world does not end with a bang, it will expire with a strangled cough. Ecologist Kenneth Watt says that with auto exhausts increasing nitrogen in the air, "it's only a matter of time before light will be filtered out of the atmosphere and none of our land will be usable." A positively dissenting view comes from Rene Dubos, brilliant microbiologist and experimental pathologist, author of 15 books and still-working professor emeritus at Manhattan's Rockefeller University. Last week he explained his outlook to TIME Correspondent Alan Anderson.
"My life philosophy," Dubos says in polished,...