WOLFRAM SYSTEMMODELER

Human_Ecological_Footprint

Ecological footprint

Diagram

Wolfram Language

In[1]:=
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SystemModel["SystemDynamics.WorldDynamics.World3.Human_Ecological_Footprint"]
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Information

The ecological footprint is a concept developed by Mathis Wackernagel and his co-workers. It attempts to quantify the percentage of the planet's carrying capacity being used up by humanity at any given point in time. Wackernagel showed that, since the 1980s, humanity is spending more resources per time unit than the planet can regenerate in a sustainable fashion.

The human ecological footprint is measured in hectares per person.

Connectors (4)

urban_ind_land

Type: MassInPort

Description: Land occupied by human dwellings and industry

arable_land

Type: MassInPort

Description: Arable land

ppoll_gen_rt

Type: MassInPort

Description: Persistent pollution generation rate

hef_human_ecological_footprint

Type: MassOutPort

Description: Ecological footprint

Components (5)

Arable_Land_In_Gha

Type: Gain

Urban_Land_In_Gha

Type: Gain

Absorption_Land_In_Gha

Type: Prod_2

Gha_Per_Unit_Of_Pollution

Type: Const

HEF_Human_Ecological_Footprint

Type: HEF_Human_Ecological_Footprint

Used in Examples (11)

Scenario_11

SystemDynamics.WorldDynamics.World3

Influencing the future 10 years later

Scenario_10

SystemDynamics.WorldDynamics.World3

Influencing the future 20 years earlier

Scenario_9

SystemDynamics.WorldDynamics.World3

Combining the measures of Scenarios #6 and #8

Scenario_8

SystemDynamics.WorldDynamics.World3

More abundant non-recoverable natural resources, birth control, and stable industrial output

Scenario_7

SystemDynamics.WorldDynamics.World3

More abundant non-recoverable natural resources and birth control

Scenario_6

SystemDynamics.WorldDynamics.World3

More accessible non-recoverable natural resources, pollution control, land yield enhancement, erosion protection, and resource efficiency

Scenario_5

SystemDynamics.WorldDynamics.World3

More accessible non-recoverable natural resources, pollution control, land yield enhancement, and erosion protection

Scenario_4

SystemDynamics.WorldDynamics.World3

More accessible non-recoverable natural resources, pollution control, and land yield enhancement

Scenario_3

SystemDynamics.WorldDynamics.World3

More accessible non-recoverable natural resources and pollution control

Scenario_2

SystemDynamics.WorldDynamics.World3

More abundant non-recoverable natural resources

Scenario_1

SystemDynamics.WorldDynamics.World3

Original WORLD3 model