The ecological overload is increasing
Carbon Grazing land Forests
Fisheries 2.0
Arable land Built up areas
Number of planets
1.5
1.0
World Biocapacity
0.5
0.0 1961
1971
1981
1991
2001
Year
Figure 09: Ecological Footprint by components, 1961–2006 The Footprint is shown as a number of planets. The dotted white line represents total biocapacity always corresponding to one planet Earth, although in fact Earth’s biocapacity may vary from year to year. Hydroelectricity generation has been included under ‘built up areas’ and firewood under the heading ‘forests’ (Global Footprint Network, 2010 )
The Ecological Footprint of São Paulo - State and Capital 2012 p.
34
2007