hef: Human Ecological Footprint

Variable

World3 03 indicators sector

Human Ecological Footprint [Dmnl]

hef = ( algha  +  ulgha  +  ablgha )/ tl
../_images/hef.png

hef in the updating graph: ( how to read )

In nodes

ablgha : “Absorption Land (GHA)”

algha : “Arable Land in Gigahectares (GHA)”

tl : Total Land

ulgha : “Urban Land (GHA)”

Out nodes