HUMANITY’S ECOLOGICAL FOOTPRINT A TOOL FOR NAVIGATING IN A RESOURCE CONSTRAINED WORLD Rachel Hodara.

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Presentation transcript:

HUMANITY’S ECOLOGICAL FOOTPRINT A TOOL FOR NAVIGATING IN A RESOURCE CONSTRAINED WORLD Rachel Hodara

What is the Ecological Footprint? Quantitative measure of the demand humanity places on the biosphere Resources Waste Footprint Biocapacity

Calculation of the Footprint Ecological Footprint –How much area do we demand? Biocapacity –How much area is available to us? 13.4 billion bioproductive hectares worldwide 6.5 billion people

Components of the Footprint Cropland Fishing Grounds Carbon Uptake Land Grazing Land Forest Built Area

Components of the Footprint 110 m m 3 /US ha Equivalence Factor Yield factor 3.10 m 3 /US ha 2.36 m 3 /World ha 1.33xx= 62 global hectares Ecological Footprint

Sustainability or Overshoot?

National Footprints

United States (9.42 gha per person) Tanzania (1.14 gha per person) France (4.93 gha per person) Philippines (0.87 gha per person) National Footprints

The Personal Footprint -- CLUMs

Limitations of the Footprint Doesn’t take into account persistent pollution with no established biocapacity Only a set of proxy values for personal Footprints Assumes identical consumption patterns nationwide