Peter Day (BBC broadcaster) in the context of "Lester R. Brown"

Lester Russel Brown (born March 28, 1934) is an American environmental analyst, founder of the Worldwatch Institute, and founder and former president of the Earth Policy Institute, a nonprofit research organization based in Washington, D.C. BBC Radio commentator Peter Day referred to him as "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 The Great Transition: Shifting from Fossil Fuels to Solar and Wind Energy (2015), in which he explains that the global economy is now undergoing a transition from fossil and nuclear energy to clean power from solar, wind, and other renewable sources. His previous book was Full Planet, Empty Plates: The New Geopolitics of Food Scarcity (2012).