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Updated: Jun 19, 2026

Spotting Cheetahs: Identifying Individuals by Their Footprints

Spotting Cheetahs: Identifying Individuals by Their Footprints

Published on: May 1, 2016

Footprints to the future.

Martin Desvaux¹

¹Optimum Population Trust. martindesvaux@aol.com

Medicine, Conflict, and Survival

|October 10, 2009

Summary

Humanity

Area of Science:

Environmental Science
Ecology
Human Impact Studies

Background:

Historical overview of human impact on Earth's biosphere.
Identification of significant environmental challenges posed by human activities.

Purpose of the Study:

To present a method for quantifying contemporary human impact on the biosphere.
To compare global biological resource availability with energy demands across different income groups.

Main Methods:

Utilizing global footprinting data from the Global Footprinting Network (October 2008).
Comparing available biocapacity with energy consumption patterns of high, medium, and low-income countries.

Main Results:

The planet cannot sustain the current population of 6.8 billion without fossil fuels at current consumption levels.

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Projected population growth to 9.4 billion by 2050, coupled with diminishing biocapacity due to global warming, exacerbates resource scarcity.

Conclusions:

An urgent need exists to encourage family size limitation to two or fewer children to mitigate resource-consumption mismatch.
Examples of national policies demonstrate the feasibility and necessity of such measures for sustainability.