ISTANBUL - JULY 22: Traffic on Galata Bridge on July 22, 2011 in Istanbul. Due to increasing traffic & air pollution, Istanbul became one of most polluted city also planned for return of tram.
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ISTANBUL - JULY 22: Traffic on Galata Bridge on July 22, 2011 in Istanbul. Due to increasing traffic & air pollution, Istanbul became one of most polluted city also planned for return of tram.