
The relationship between a system-building and the land-system is measured by the flow of matter and energy that crosses the boundaries of the system during its life cycle. Removal of resources can come from renewable or non-renewable sources. The levy must be from renewable sources below the rate of regeneration, the levy non-renewable sources must tend to zero. Emissions must be less than the absorption rate environment.
Sources:
- Strategic Plan for the sustainable development of islands pelagie
- ISO 14040
- Boulding, Kenneth
- Daly, Herman
- Club of Rome - Limits to Growth
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