Definitions for "Ecological footprint"
a calculation that estimates the area of Earth's productive land and water required to supply the resources that an individual or group demands, as well as to absorb the wastes that the individual or group produces.
a measure of how much land and water is needed to produce the resources we consume and to dispose of the waste we produce.
A measure of the 'load' imposed by a given population on nature. It represents the land area necessary to sustain current levels of resource consumption and waste discharge by that population.
Keywords:  'snapshot, methodology
a 'snapshot' methodology
the cumulative effect of degradative use of on an ecosystem