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An Environmental Plan for the New City of Toronto: How to Make It ...

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The United Nations defines sustainability as:<br />

“improving <strong>the</strong> quality <strong>of</strong> human life within <strong>the</strong> carrying capacity <strong>of</strong> supporting<br />

ecosystems”.<br />

Sustainable development is based on <strong>the</strong> concept that a healthy environment, social<br />

equity and a healthy economy are linked. As illustrated in figure 1, <strong>the</strong> 3 independent<br />

spheres are in reality interdependent and combine in <strong>the</strong> definition <strong>of</strong> sustainability.<br />

Figure 1<br />

The Evolution Towards a <strong>New</strong><br />

Framework <strong>for</strong> Decision-Making<br />

Equity<br />

Environment<br />

Economy<br />

Their interdependency demonstrates <strong>the</strong> need <strong>for</strong> integrative decision – making.<br />

Decisions about environmental protection cannot be made in isolation from<br />

decisions about <strong>the</strong> economy or nor decisions about budget in isolation from decisions<br />

about social welfare (Salsberg, 1998). This is illustrated in figure 2.<br />

Figure 2<br />

6

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