Calculating an ecological footprint measures the impact of human activities in terms of the  the amount of biologically productive land and water area an individual, city, country or region or entire humanity uses to produce the resources it consumes and to absorb waste it generates through modern technology and waste management practices.

More simply,  it is a measure of sustainability that informs us how many environmental resources necessary to produce the goods and services required to support a particular lifestyle. Often it can be included in working out how many resources countries have available to them and comparing that with how many resources they need.

The WWF provides an ecological footprint calculator that anyone can use to calculate their individual ecological footprint, following the link HERE.