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Art by Sarah Rietz Transparency Item: The Perspectives section of the Graphic is comprised of articles based on opinion. This is the opinion and perspective of the writer. In recent years, Oman has been gaining attention for having some of the cleanest cities in the world, according to Oman Consulate General in Australia. In comparison, major cities in the United States are … [Read more...] about Opinion: Why Oman’s Commitment to Clean Cities Outshines Major U.S. Cities: Lessons Learned