Eco-sustainability Monthly Forum (37): Ecological Footprint: Concept and Application
- Prof. Hassan Osman Abdelnour
- Prof. Taj Elsir
1.Ecological footprint is a measure of human demand on the Earth’s ecosystems, It represents the amount of biologically productive land and sea area necessary to supply the resources a human population consumes, and to mitigate associated waste.
2.Footprint values at the end of a survey are categorized for Carbon, Food, Housing, and Goods and Services as well as the total footprint number of Earths needed to sustain the world’s population at that level of consumption.
3.This resource accounting is similar to life cycle analysis wherein the consumption of energy, biomass (food, fiber), building material, water and other resources are converted into a normalized measure of land area called ‘global hectares’ (gha)
4.For 2006, humanity’s total ecological footprint was estimated at 1.4 planet Earths – in other words, humanity uses ecological services 1.4 times as fast as Earth can renew them.
5.If a country does not have enough ecological resources within its own territory, then there is a local ecological deficit and it is called an ecological debtor country. Otherwise, it has an ecological remainder and it is called an ecological creditor country.
6.In 2007, the average biologically productive area /person worldwide was approximately 1.8 global hectares (gha) /capita.
7. EF Sudan National Accounts agricultural Census, Livestock & Wildlife census, National Freshwater & Marine Fish Survey, National Forest & Range Inventory, National Geological & Soil Survey, National Population Census & Registry.