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National Conversation on Climate Action
April 22, 2009 | University of Arizona, Tucson, AZ | Event Web site
Tucson will host a “Spotlight Conversation on Climate Action” as part of an elite group of 10 communities that were selected by ICLEI-Local Governments for Sustainability to be highlighted nationally. This event is part of the National Conversation on Climate Action series of local-level community engagement events taking place nationwide on Earth Day.
Land Use Planning in the Changing Climate of the West
Urban Heat Island: Raising City Temperatures
The urban heat island (UHI) amplifies local temperatures and principally occurs when natural landscapes are converted to urban areas. Higher temperatures occur because dense concentrations of materials like asphalt and buildings absorb more heat during the day and release it more slowly at night than natural ground cover such as soil and vegetation (Figure 1).