What Is Sustainable

A million years ago, our Homo erectus ancestors consisted of maybe 20,000 breeding individuals, according to wizards who speculate on t...

In 1964, plans were being discussed for the creation of the Canyonlands National Park, near Moab, Utah.   Some wanted to include the Maz...

Raymond Dasmann (1919–2002) was a professor of conservation biology, and the author of many books.   The poor fellow suffered from a dev...

Once upon a time, Richard Heinberg was a mild-mannered college professor in northern California.   In 1998, he happened to read an article...

Not long ago, I came across a book that looked interesting, Man the Hunted: Primates, Predators, and Human Evolution , written by two anth...

Edward Abbey (1927–1989) was an eco-wordsmith whose work is often compared to the classics of Aldo Leopold and Henry Thoreau.   His book D...

The emergence of domestication and agriculture allowed humankind to produce more food per area of land, but this innovation also resulte...