The ecological footprint is a measure of human demand on the Earth’s ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet’s ecological capacity to regenerate. The ecological footprint concept and calculation method was developed as the PhD dissertation of Mathis Wackernagel, under supervision of William Rees at the University of British Columbia in Vancouver, Canada.

The ecological footprint process is now maintained by the Global Footprint Network, a non-profit organisation.

For more on the ecological footprint go here.