The Natural West: Environmental History in the Great Plains and Rocky Mountains (2003)
“Humanity is now experiencing history's most difficult evolutionary transformation.”
From 1980s onwards, Grunch of Giants (1983)
Help us to complete the source, original and additional information
Buckminster Fuller 171
American architect, systems theorist, author, designer, inv… 1895–1983Related quotes
Source: In Defense of Chaos: The Chaology of Politics, Economics and Human Action, (2013), p. 348

Ernst Mayr (2004) " 80 Years of Watching the Evolutionary Scenery http://www.sciencemag.org/content/305/5680/46.full" Science (2 July 2004) Vol. 305 no. 5680 pp. 46-47

From 1980s onwards, Grunch of Giants (1983)

2010s, Address to the United States Congress, Inauguration of the Jubilee Year of Mercy
The Natural West: Environmental History in the Great Plains and Rocky Mountains (2003)
Source: Everyone is African: How Science Explodes the Myth of Race (2015), p. 155.