Population Models

World population and consumption of resources appear to be inextricably linked.

The consumption model explores how population appears to vary with cumulative consumption of different types of resources.

The speed model explores the link between population, consumption, and how fast resources can be accessed.

The combined population model (also "population-consumption model") uses elements of both the consumption and speed models. This has two versions, Version 1 and Version 2.

Below: The consumption model's population projection ("GEF") based on consumption of ecological resources is compared with several scenarios from the combined population model (Version 1):


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