The Ecological Footprint (EF) calculations are generally performed by
following the methodology defined by Mathis Wackernagel, based on top-down
analysis, on macroeconomic data that estimates the footprints at various territorial
levels: Earth, continents, countries, cities, etc. The present chapter establishes a reference
frame, also top-down, in order to define the indicators and their relevance. The
indicators have been used in the calculation of the impact of humanity on the
environment, among which the EF is included. According to EF methodology, all
consumptions, materials, energy, and waste absorption have their corresponding
productive land requirements for their production or disposal.
Keywords: Conversion factors, Ecological deficit, Ecological footprint,
Productivity factors, Productive land, Sustainability, Sustainable development,
Standard productive territory.
