Lester Russel Brown (born March 28, 1934) is a United States environmental analyst, founder of the Worldwatch Institute, and founder and president of the Earth Policy Institute, a nonprofit research organization based in Washington, D.C. BBC Radio commentator Peter Day calls him "one of the great pioneer environmentalists."
Brown is the author or co-author of over 50 books on global environmental issues and his works have been translated into more than forty languages. His most recent book is World on the Edge: How to Prevent Environmental and Economic Collapse (2011). Brown emphasizes the geopolitical effects of fast-rising grain prices noting that "the biggest threat to global stability is the potential for food crises in poor countries," and one that could "bring down civilization".
The recipient of 26 honorary degrees and a MacArthur Fellowship, Brown has been described by the Washington Post as "one of the world's most influential thinkers". As early as 1978, in his book The Twenty-Ninth Day, he was already warning of "the various dangers arising out of our manhandling of nature... by overfishing the oceans, stripping the forests, turning land into desert." In 1986, the Library of Congress requested his personal papers noting that his writings "have already strongly affected thinking about problems of world population and resources," while president Bill Clinton has suggested that "we should all heed his advice."