Ecological Footprints and Ecosystem Decline

Mathis Wackernagel and William Rees, Our Ecological Footprint (New Society 1996)

All our activities have environmental effect that can be understood in terms of land area required to support us, our footprint.  When the footprints of the total population of the world exceed the land available, the population is not sustainable. The book makes real concepts like carrying capacity, sustainability, and use of resources in a graphic way and provides a method of calculating an ecological footprint.

For more go to  Redefining Progress and click on Ecological Footprint.

Each of the major ecosystems is in serious decline as a result of human action and growth in population.   These provide a measure of the health of the earth.

Measures of World Health and Sustainability

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