Stephan:   When I was a young futurist back in the late 1960s and early 70s, the big concern was over-population. Biologist Paul Ehrlich, Bing Professor of Population Studies and Professor of Biological Sciences at Stanford University, and one of the icons of the environmental and population movements is one example. In a 1969 Ramparts magazine article “Eco-Catastrophe!” Ehrlich predicted, among other misses, that the oceans would be dead from DDT poisoning by 1979, US life expectancy would drop to 42 years by 1980 as the result of pesticide-induced cancers, and the US population would decline to under 23 million by 1999.10 In his 1974 book, The End of Affluence, Ehrlich saw the President dissolving Congress “during the food riots of the 1980s,” and suggested that because of these food shortages, the United States would feel compelled to use agricultural poisons to such an extent, causing so much damage to the environment, that a horrified world might launch a nuclear attack on the United States to stop Ameri- can pesticide pollution.11 Pretty scary stuff; and, oh yes— dead wrong. Here is another confirmation that over-population is not going to be the defining issue envisioned 50 years ago.