A Quote by David Holmgren on land, evolution, permaculture, energy, stability, and entropy

Although it is tempting to think of these natural landscapes as reflecting a stability in climactic and geologic forces, long periods of climactic and geophysical stability actually result in a rundown of the energy available to ecosystems and people. Geologically young regions with recent mountain building and volcanism tend to be much more biologically productive and have supported large populations of people despite their vulnerability to natural disasters. Geologically old regions (like most of Australia) tend to have low biological productivity and supported fewer people.

David Holmgren

Source: Permaculture: Principles and Pathways Beyond Sustainability, Pages: 32

Contributed by: Philip

A Quote by Bill Mollison on permaculture, solutions, world, and problems

Though the problems of the world are increasingly complex, the solutions remain embarrassingly simple.

Bill Mollison

Contributed by: Rosi

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