Chapter 22, Problem 1CR

To determine

The method used to make Portland, Oregon a more sustainable city.

Answer to Problem 1CR

Portland, Oregon, had developed its urban areas more sustainable by using three scientific principles. First was improving the energy efficiencies and depending on natural energy sources for electricity and heating. Second was developing vegetation and biodiversity parks, and the third was using low polluting transport services.

Explanation of Solution

Three scientific principles of sustainability that are used to make Portland, Oregon more sustainable city are as follows:

1. (i) Improving energy efficiencies and relying on solar energy, wind, and the geothermal energy for electricity, cooling, and heating.
2. (ii) The urban cities also were filled with vegetation and biodiversity parks.
3. (iii) The usage of low-polluting transport also helped in the development of the eco-city.

Portland has employed smart growth approaches and strong land-use policies for controlling growth, reducing reliance on automobiles, and preserving green space. Portland encourages the establishment of mixed-use neighborhoods with stores, professional offices, light industries, high-density housing, and admission to mass transit. This enabled most of the people to meet many of their everyday needs without a car Moreover, the municipal solid wastes were recycled and composted. A Climate Action Plan was implemented to reduce the emissions of carbon dioxide.