He had been a senior fellow of the Hudson Institute since 1989. Prior to that, he was a senior analyst in the U.S. Department of State (1980–88), where he won the National Intelligence Medal of Achievement in 1983. He also held outstanding performance awards from the U.S. Department of Agriculture and the U.S. Commodity Futures Trading Commission. He wrote a weekly column on environmental issues that was distributed to the Knight-Ridder-Tribune chain of newspapers. He is coauthor, with S. Fred Singer, of the New York Times bestseller Unstoppable Global Warming — Every 1,500 Years (Rowman & Littlefield, 2007) and author of Global Food Progress (Hudson Institute, 1991) and Saving the Planet With Pesticides and Plastic: The Environmental Triumph of High-Yield Farming (Hudson Institute 1995, 2d edition 2000).