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Models of Sustainability
Michael R. Edelstein, Ph.D.
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The Limits Frame
David Orr:
A sustainable society does not undermine resource base and biotic stocks on which its future prosperity depends
Overshoot, Carrying Capacity, Finite Earth
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LOAD
OVER SHOOT
COLLAPSE
Population x Demand =
Load
Time >
<PhantomCapacity>CARRYING CAPACITY
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Tragedy of the Commons Frame
Individuals seek their self interest, hurt groups:
The Commons Conundrum---if 10 people share a common field with a carrying capacity of 30 cattle, it is in our individual interest to have 4 or 5 cattle, because the loss is shared.
Garrett Hardin’s Lifeboat Ethics
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Systems frame
Can we depend upon required inputs and is there blowback from our outputs?
Modeling Complex Systems Cont.
• Von Bertalanffy---General Systems Theory
Through-put outputinput
SYSTEM:CLOSEDOR OPEN
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Ecological Footprint Frame
How much demand does our lifestyle make on the environment, both in terms of demand for resources and for assimilative capacity for the pollution we create.
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Equity Frame
• Environmental Justice
• Cross Generational
Lester Brown— A sustainable society is one that satisfies its needs without jeopardizing the prospects of future generations.
• Biocentric Equality
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Renewability frame
Herman Daly’s (Daly and Cobb, 1992.)three common sense guidelines for a sustainable society:
• Are we employing renewable resources to the maximum amount allowed by their rate of renewal?
• Are nonrenewable resources used only when absolutely necessary, and then in the most limited and efficient way possible?
• Are we producing pollution beyond the assimilative capacity of the environment?
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Entropy/laws of thermodynamics frame
How much disorder do we create?
How fast do we create it?
What types of disorder do we create?
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Development Frame
Brundtlund: Sustainable Development
Lessen impact of rich and poor
Redefine development
Incorporates belief in growth and progress—society’s progression from primitive to advanced (Social Darwinism)
Incorporates belief in growth economics
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Community Process Frame: creating sense of community and social purpose while
enhancing social relationships.• Forming coalitions• Creating community wide planning and visioning• Increasing opportunities to participate• Pedestrianism and public • Pride in community• Creation of a common culture while respecting diversity• Enhancing communication• Recognizing significant accomplishments• Create convivial functions and arts and Social events• Livelihood: Reorganizing work to give people time at
home, family, community
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Steve Viederman
• A sustainable society is a participatory process that creates and pursues a vision of community that respects and makes prudent use of all of its resources—natural, human, human-created, social, cultural, scientific, etc.
• Sustainability seeks to ensure [for] the present [and succeeding] generation[s]… a high degree of economic security and can realize the democratic and popular participation [and] the wisdom and intelligence to use what is provided in an appropriate manner.
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