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      Global change and the ecology of cities.

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          Abstract

          Urban areas are hot spots that drive environmental change at multiple scales. Material demands of production and human consumption alter land use and cover, biodiversity, and hydrosystems locally to regionally, and urban waste discharge affects local to global biogeochemical cycles and climate. For urbanites, however, global environmental changes are swamped by dramatic changes in the local environment. Urban ecology integrates natural and social sciences to study these radically altered local environments and their regional and global effects. Cities themselves present both the problems and solutions to sustainability challenges of an increasingly urbanized world.

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          Author and article information

          Journal
          Science
          Science (New York, N.Y.)
          American Association for the Advancement of Science (AAAS)
          1095-9203
          0036-8075
          Feb 08 2008
          : 319
          : 5864
          Affiliations
          [1 ] School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA. nbgrimm@asu.edu
          Article
          319/5864/756
          10.1126/science.1150195
          18258902
          08628aac-5258-4ca8-bb13-657a1ea69396
          History

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