35 مدينة عالمية تعهدت بإنشاء مناطق “خالية من الانبعاثات”.. فهل ينجح تقليل عدد السيارات في تحسين جودة الهواء دون الإضرار بالاقتصاد؟ #اقتصاد_الشرق

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