In 1995 he was named one of the 25 most influential personalities in America by Time magazine, and in 1996 an international survey ranked him as one of the 100 most influential scientists in history. In 2000, Time and Audubon magazines named him one of the 100 Leading Environmentalists of the Century. In 2005, Foreign Policy named him one of the 100 most important intellectuals in the world. In 2008 he was elected one of the 100 most important scientists in history by the Britannica Guide. In the following years and up to the present he has been included in numerous similar lists such as the list "The 50 most influential scientists in the world today" prepared by TheBestSchools.