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EarthA Tenant's Manual$
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Frank H. T. Rhodes

Print publication date: 2012

Print ISBN-13: 9780801478239

Published to Cornell Scholarship Online: August 2016

DOI: 10.7591/cornell/9780801478239.001.0001

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Food as Sustenance

Food as Sustenance

Chapter:
(p.248) Chapter 20 Food as Sustenance
Source:
Earth
Author(s):

Frank H. T. Rhodes

Publisher:
Cornell University Press
DOI:10.7591/cornell/9780801478239.003.0020

This chapter looks toward food constraints and how the Earth's human-carrying capacity—the maximum population size it can sustain indefinitely without reducing its future support capacity—depends on the level of subsistence we select and the degree of equality we demand. Though we have the ability to control our population growth, to modify our environment, to select and change our sources of food, to increase food production and availability, we still face the ultimate constraint of a growing population on a limited land area. Hence the chapter looks at the factors affecting the Earth's food productivity—such as terrain and climate change—and how these facilitate or impede food supplies for the Earth's population.

Keywords:   food supply, food production, food availability, food sources, population growth, food productivity, climate change, subsistence, land area

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