Vì sao khu vực Nam Á là “điểm nóng” ô nhiễm không khí trên toàn cầu?
Nam Á đã trở thành “điểm nóng” toàn cầu về ô nhiễm không khí khi các nghiên cứu chỉ ra tại đây có bốn trong số các nước ô nhiễm nhất thế giới, và chín trong số 10 thành phố ô nhiễm nhất trong khu vực.
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