Title Work Title No: 5607 Medium: Moving Image Dates: Original Summary: "Shows how cities produce unpleasant alterations of the climate; for example, increased cloudiness and downwind pollution."-- Audiovisual Materials Catalog 2002-2007 by Audiovisual Services of St. Louis Public Schools. "Shows how man has altered the heat balance and climate by changing the surface of the earth."--WorldCat. Countries of Origin: U.S.A. Genres: Educational
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