John Marion Tierney (born March 25, 1953) is an American journalist and a contributing editor to City Journal, the Manhattan Institute's quarterly publication. Previously he had been a reporter and columnist at the New York Times for three decades since 1990. A self-described contrarian, Tierney is a critic of aspects of environmentalism, the "science establishment," and big government, but he does support the goal of limiting overall emissions of carbon dioxide. Source: Wikipedia (en)