The Ecological Footprint measures how much nature we have, how much we use, and who uses it. It shows us how much biologically productive land and water a population (an individual, an organisation, a city, a country, or all of humanity) requires to support current levels of consumption and waste production, using prevailing technology.
The Ecological Footprint illustrates that, as a global community, we currently need about 1.3 planets to meet our average resource consumption levels.