Despite his optimistic, convivial manner, Robert Alex Baron, 49, knows true frustration all too well. For three years he has waged a lonely, almost quixotic war on the steadily mounting crescendo of urban noise.
His battlefield: New York City. "It is a laboratory," Baron explains. "Every noise source in the U.S. can be found here in larger amounts." His success: meager. "The big problem is communication," he says. "When air pollution was shown actually to kill people, there was action. Fortunately or unfortunately, we cannot show a direct cause-and-effect relationship between excessive noise and death."
But why wait until Americans are pulverized and...