The human population is fully capable of liquidating the ecological capacity of the Earth. In other words, we are using up our natural resources by consuming them 23% faster than they can regenerate.

What's even more alarming, is that we are also devastating the Earth's supply of Renewable Resources due to deforestation, carbon-induced climate change, and fisheries and groundwater depletion.

The balance between what humans consume and the rate by which the Earth can regenerate what we consume is called Sustainability. In order to know how much water, land, minerals and other natural resources we must regenerate to restore the planet, an inventory of what is spent must be kept.

The Ecological Footprint helps to inventory the use of the Earth's equity by measuring an individual's, a city's or a nation's ecological demands.

In 1961, the world's population used half of the Earth's biocapacity. Since 1961, it has used over one and a half times the Earth's biocapacity. This means, the population of the Earth actually requires one entire extra planet Earth to sustain its demands for consumption.


Ecological Footprints.
What's a footprint?
What's your footprint?

Why Build Green?
Facts and Figures
What's a Green Building?
Costs and Benefits

Better Buildings.
Langston-Brown High School
The Robert Redford Building
Outhouse on Mt. Whitney
Honda's NW Regional Facility

U.S. Green Building Council
American Forests
Environmental Defense

Stop Global Warming

©2006 Claudia Hickey