HUMAN OVERSHOOT: ITS CAUSES AND CONSEQUENCES

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Chapter 5 of this series presents the facts of human ecological overshoot and its present and likely future consequences.

TERMS AND CONCEPTS INTRODUCED

1. Natural Growth: Growth having the pattern that the amount of growth in any given interval of time is proportional to the amount present at the start of that interval.

2. Doubling Time: The length of time required for a population to double given its rate of growth. This depends only on rate of growth, and not on the current size of the population.

3. Net Primary Production (NPP): The total weight of carbon that plants and algae remove from the atmosphere each year and convert into organic matter.

4. Detritivore: An organism that sustains itself by consuming organic waste material from decomposing dead plants or animals.

5. Overshoot: Increase of an organism's population beyond the carrying capacity of its ecological environment.

REFERENCES AND RESOURCES

Quantifying and mapping the human appropriation of net primary production in earth's terrestrial ecosystems:
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American Bison
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African Elephant
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Tiger
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North American Birds
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Insects
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Fisheries
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What would happen to Earth if humans went extinct?
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Human-driven Mass Extinction
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Fossil fuels in food production
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Mapping the world's degraded lands
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Aquifers/Ground Water
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Overshoot
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