Diamond's research has won him many awards, including the National Science Award, the Burl Award of the American Geographic Society, the Taylor Award for Environmental Contribution, the Japan International Environmental Harmony Award and the MacArthur Foundation Research Fund. He has published more than 200 papers in Discovery, Natural History, Nature and Geography. Diamond is the only writer in the world who has won the British Popular Science Book Award twice. His masterpiece Guns, Germs and Steel explores the origin and geographical causes of inequality in human society, and won the Pulitzer Prize in the United States and the British Popular Science Book Award with 1998.