Building Sustainable Cities- page 2 | EcoCenter: Greener Living | Smithsonian

Building Sustainable Cities

The 227-city U.S. Mayors Climate Protection Agreement is just the beginning.

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(Continued from page 1)

According to a recent Sierra Club report, Austin has managed to conserve nearly 600 megawatts of energy since the 1980s. The city also puts a lot of green in its energy mix: within 15 years, it plans to get 20 percent of its energy from renewable sources.

Southwest: Boulder, Colorado. The open space maven.

Stunning greenways within the city provide paths for a huge number of cyclists. On the outskirts of Boulder a green belt serves not only to provide access to nature, wildlife habitat and water drainage but as a barrier against the sprawl with which the rest of Colorado's front range must contend.

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