Green Urbanism

Gaslight Alley at Mixson

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Solar Village at Prospect New Town (view from street towards alley)

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Cities and CO2: Two Views of Greenhouse Gas Emissions

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The slide from the Center for Neighborhood Technology shows how dense cities are commonly viewed as areas of concentrated CO2 emissions (when emissions are viewed on a per-square-mile basis) but are actually extremely low producers of such emissions when viewed on a per capita (or per household) basis. Specifically, the average exurban household in a sprawling Chicago exurb generates about 11.5 tons of C02 per year, but those in suburban areas served by commuter rail generate 23% less C02 with their cars, or about 9 tons on average. By moving to a city neighborhood -- or a compact, mixed-use rail-connected suburb such as Evanston or Oak Park -- a household would expect to see their auto-generated C02 drop precipitously to about 2.5 tons per year. They'd be switching to transit for some trips, which involves some generation of greenhouse gases, but at a far, far reduced rate. And more destinations would be within walking and biking distance too.

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Habitat Trails, Hydrological Solution

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Habitat Trails, Various Pictures

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Habitat for Humanity Neighborhood Plan.

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Habitat Trails

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Habitat for Humanity, Green Nieghborhood Site Plan.

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Neighborhood Unit, San Juan

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The diagrams and illustartions present a historic and long term Urban Vision for one of the neighborhood units in the Puerto Nuevo Ward.

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San Juan Metro Area, Puerto Rico

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Aerial photograph partially illustrating the San Jaun Metro area.

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