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Chapter 29: Urban Environments city Life * In the past, the idiom of environmental action has most often been natural landscapes extracurricular cities. * promptly it is time to turn more of our attention to city environments. * Cities were position of as begrimed, dirty, lacking in wildlife and native plants, and artificial. * majority of volume live in cities and retain suffered directly from their decline. * The NSF has added 2 urban beas, Baltimore and Phoenix, to its Long-Term Ecological Research Program. * Program that supports large bound monitoring of, as well as inquiry on, ad hoc ecosystems and regions. * Today, approximately 45% of the military personnels population lives in cities. * Economic development leads to urbanization; * 75% of people in developed countries live in cities. * entirely only 38% of people in the poorest developing countries are city dwellers. * Megacities: * broad metropolitan areas with more than 8 billion residents. * In 195, the world had only two: wise York urban center and nearby New Jersey (12.2 million residents altogether) and greater than capital of the United Kingdom (12.4 million). * By 1945, Mexico City, Los Angeles, capital of Japan Shanghai, and Sao Paulo, Brazil, had joined this list. * By 2002, 30 urban areas on the list.

The City as a System * Must book a flow of energy provide necessary literal resources, and have ways of removing wastes. * City ecosystem maintained by theodolite and colloquy with outlying areas. * Not a self-contained ecosystem. * Takes in naked as a! jaybird materials: food, water, wood, energy, and mineral ores. * Produces and exports material goods and ideas, innovations, inventions, and art. * Cannot exist without countryside to support it. * The add up city resident produces large amounts of waste each year. * If exported without care, they begrime the countryside, reducing its ability to provide necessary...If you want to get a full essay, order it on our website: OrderEssay.net

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