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Unformatted text preview: this category are the ones we must be
concerned about, and we will examine many examples, particularly water. The sustainable approach to
managing renewable resources is to harvest the resource at the same rate it is produced, maintaining a steady
state. Sustainable use of renewable resources is desirable because it guarantees long-term availability of those
We can see from these examples that renewable resources are flow or rate limited, while nonrenewable
resources are stock limited (Gleick and Palaniappan 2010). We essentially have an infinite supply of renewable
resources such as water and solar energy because they are constantly replenished, but the rate at which we use
them is limited by the flow rate.
These concepts are summarized in The Laws of Sustainability. According to Ecological Economist
Herman Daly, the sustainable rate of use can be no greater than…
• the rate of regeneration of a renewable resource.
• the rate at which a renewable resource, used sustainably, can be substituted for a nonrenewable
• the rate at which a pollutant can recy...
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This note was uploaded on 01/08/2014 for the course SUST 510 taught by Professor Marker during the Fall '14 term at Black Hills State University.
- Fall '14